From 9df98e65f842cf3acae09cbdd969966f42d64469 Mon Sep 17 00:00:00 2001 From: Florian Dold Date: Sat, 14 Oct 2017 18:40:54 +0200 Subject: update dependencies --- .../html-minifier/node_modules/.bin/uglifyjs | 2 +- .../html-minifier/node_modules/uglify-js/LICENSE | 29 + .../html-minifier/node_modules/uglify-js/README.md | 1058 ++++ .../node_modules/uglify-js/bin/uglifyjs | 401 ++ .../node_modules/uglify-js/lib/ast.js | 934 ++++ .../node_modules/uglify-js/lib/compress.js | 4507 ++++++++++++++++ .../node_modules/uglify-js/lib/minify.js | 220 + .../node_modules/uglify-js/lib/mozilla-ast.js | 615 +++ .../node_modules/uglify-js/lib/output.js | 1441 +++++ .../node_modules/uglify-js/lib/parse.js | 1597 ++++++ .../node_modules/uglify-js/lib/propmangle.js | 241 + .../node_modules/uglify-js/lib/scope.js | 525 ++ .../node_modules/uglify-js/lib/sourcemap.js | 97 + .../node_modules/uglify-js/lib/transform.js | 217 + .../node_modules/uglify-js/lib/utils.js | 355 ++ .../node_modules/uglify-js/package.json | 44 + .../node_modules/uglify-js/tools/domprops.json | 5601 ++++++++++++++++++++ .../node_modules/uglify-js/tools/exports.js | 5 + .../node_modules/uglify-js/tools/node.js | 82 + .../node_modules/uglify-js/tools/props.html | 61 + 20 files changed, 18031 insertions(+), 1 deletion(-) create mode 100644 node_modules/html-minifier/node_modules/uglify-js/LICENSE create mode 100644 node_modules/html-minifier/node_modules/uglify-js/README.md create mode 100755 node_modules/html-minifier/node_modules/uglify-js/bin/uglifyjs create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/ast.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/compress.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/minify.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/mozilla-ast.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/output.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/parse.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/propmangle.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/scope.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/sourcemap.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/transform.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/lib/utils.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/package.json create mode 100644 node_modules/html-minifier/node_modules/uglify-js/tools/domprops.json create mode 100644 node_modules/html-minifier/node_modules/uglify-js/tools/exports.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/tools/node.js create mode 100644 node_modules/html-minifier/node_modules/uglify-js/tools/props.html (limited to 'node_modules/html-minifier') diff --git a/node_modules/html-minifier/node_modules/.bin/uglifyjs b/node_modules/html-minifier/node_modules/.bin/uglifyjs index aaaeee8ac..fef3468b6 120000 --- a/node_modules/html-minifier/node_modules/.bin/uglifyjs +++ b/node_modules/html-minifier/node_modules/.bin/uglifyjs @@ -1 +1 @@ -../../../uglify-js/bin/uglifyjs \ No newline at end of file +../uglify-js/bin/uglifyjs \ No newline at end of file diff --git a/node_modules/html-minifier/node_modules/uglify-js/LICENSE b/node_modules/html-minifier/node_modules/uglify-js/LICENSE new file mode 100644 index 000000000..dd7706f0c --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/LICENSE @@ -0,0 +1,29 @@ +UglifyJS is released under the BSD license: + +Copyright 2012-2013 (c) Mihai Bazon + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: + + * Redistributions of source code must retain the above + copyright notice, this list of conditions and the following + disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY +EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, +OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR +TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. diff --git a/node_modules/html-minifier/node_modules/uglify-js/README.md b/node_modules/html-minifier/node_modules/uglify-js/README.md new file mode 100644 index 000000000..8db77e57e --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/README.md @@ -0,0 +1,1058 @@ +UglifyJS 3 +========== + +UglifyJS is a JavaScript parser, minifier, compressor and beautifier toolkit. + +#### Note: +- **`uglify-js@3` has a simplified [API](#api-reference) and [CLI](#command-line-usage) that is not backwards compatible with [`uglify-js@2`](https://github.com/mishoo/UglifyJS2/tree/v2.x)**. +- **Documentation for UglifyJS `2.x` releases can be found [here](https://github.com/mishoo/UglifyJS2/tree/v2.x)**. +- `uglify-js` only supports ECMAScript 5 (ES5). +- Those wishing to minify +ES2015+ (ES6+) should use the `npm` package [**uglify-es**](https://github.com/mishoo/UglifyJS2/tree/harmony). + +Install +------- + +First make sure you have installed the latest version of [node.js](http://nodejs.org/) +(You may need to restart your computer after this step). + +From NPM for use as a command line app: + + npm install uglify-js -g + +From NPM for programmatic use: + + npm install uglify-js + +# Command line usage + + uglifyjs [input files] [options] + +UglifyJS can take multiple input files. It's recommended that you pass the +input files first, then pass the options. UglifyJS will parse input files +in sequence and apply any compression options. The files are parsed in the +same global scope, that is, a reference from a file to some +variable/function declared in another file will be matched properly. + +If no input file is specified, UglifyJS will read from STDIN. + +If you wish to pass your options before the input files, separate the two with +a double dash to prevent input files being used as option arguments: + + uglifyjs --compress --mangle -- input.js + +### Command line options + +``` + -h, --help Print usage information. + `--help options` for details on available options. + -V, --version Print version number. + -p, --parse Specify parser options: + `acorn` Use Acorn for parsing. + `bare_returns` Allow return outside of functions. + Useful when minifying CommonJS + modules and Userscripts that may + be anonymous function wrapped (IIFE) + by the .user.js engine `caller`. + `expression` Parse a single expression, rather than + a program (for parsing JSON). + `spidermonkey` Assume input files are SpiderMonkey + AST format (as JSON). + -c, --compress [options] Enable compressor/specify compressor options: + `pure_funcs` List of functions that can be safely + removed when their return values are + not used. + -m, --mangle [options] Mangle names/specify mangler options: + `reserved` List of names that should not be mangled. + --mangle-props [options] Mangle properties/specify mangler options: + `builtins` Mangle property names that overlaps + with standard JavaScript globals. + `debug` Add debug prefix and suffix. + `domprops` Mangle property names that overlaps + with DOM properties. + `keep_quoted` Only mangle unquoted properies. + `regex` Only mangle matched property names. + `reserved` List of names that should not be mangled. + -b, --beautify [options] Beautify output/specify output options: + `beautify` Enabled with `--beautify` by default. + `preamble` Preamble to prepend to the output. You + can use this to insert a comment, for + example for licensing information. + This will not be parsed, but the source + map will adjust for its presence. + `quote_style` Quote style: + 0 - auto + 1 - single + 2 - double + 3 - original + `wrap_iife` Wrap IIFEs in parenthesis. Note: you may + want to disable `negate_iife` under + compressor options. + -o, --output Output file path (default STDOUT). Specify `ast` or + `spidermonkey` to write UglifyJS or SpiderMonkey AST + as JSON to STDOUT respectively. + --comments [filter] Preserve copyright comments in the output. By + default this works like Google Closure, keeping + JSDoc-style comments that contain "@license" or + "@preserve". You can optionally pass one of the + following arguments to this flag: + - "all" to keep all comments + - a valid JS RegExp like `/foo/` or `/^!/` to + keep only matching comments. + Note that currently not *all* comments can be + kept when compression is on, because of dead + code removal or cascading statements into + sequences. + --config-file Read `minify()` options from JSON file. + -d, --define [=value] Global definitions. + --ie8 Support non-standard Internet Explorer 8. + Equivalent to setting `ie8: true` in `minify()` + for `compress`, `mangle` and `output` options. + By default UglifyJS will not try to be IE-proof. + --keep-fnames Do not mangle/drop function names. Useful for + code relying on Function.prototype.name. + --name-cache File to hold mangled name mappings. + --self Build UglifyJS as a library (implies --wrap UglifyJS) + --source-map [options] Enable source map/specify source map options: + `base` Path to compute relative paths from input files. + `content` Input source map, useful if you're compressing + JS that was generated from some other original + code. Specify "inline" if the source map is + included within the sources. + `filename` Name and/or location of the output source. + `includeSources` Pass this flag if you want to include + the content of source files in the + source map as sourcesContent property. + `root` Path to the original source to be included in + the source map. + `url` If specified, path to the source map to append in + `//# sourceMappingURL`. + --timings Display operations run time on STDERR. + --toplevel Compress and/or mangle variables in top level scope. + --verbose Print diagnostic messages. + --warn Print warning messages. + --wrap Embed everything in a big function, making the + “exports” and “global” variables available. You + need to pass an argument to this option to + specify the name that your module will take + when included in, say, a browser. +``` + +Specify `--output` (`-o`) to declare the output file. Otherwise the output +goes to STDOUT. + +## CLI source map options + +UglifyJS can generate a source map file, which is highly useful for +debugging your compressed JavaScript. To get a source map, pass +`--source-map --output output.js` (source map will be written out to +`output.js.map`). + +Additional options: + +- `--source-map filename=` to specify the name of the source map. + +- `--source-map root=` to pass the URL where the original files can be found. + Otherwise UglifyJS assumes HTTP `X-SourceMap` is being used and will omit the + `//# sourceMappingURL=` directive. + +- `--source-map url=` to specify the URL where the source map can be found. + +For example: + + uglifyjs js/file1.js js/file2.js \ + -o foo.min.js -c -m \ + --source-map root="http://foo.com/src",url=foo.min.js.map + +The above will compress and mangle `file1.js` and `file2.js`, will drop the +output in `foo.min.js` and the source map in `foo.min.js.map`. The source +mapping will refer to `http://foo.com/src/js/file1.js` and +`http://foo.com/src/js/file2.js` (in fact it will list `http://foo.com/src` +as the source map root, and the original files as `js/file1.js` and +`js/file2.js`). + +### Composed source map + +When you're compressing JS code that was output by a compiler such as +CoffeeScript, mapping to the JS code won't be too helpful. Instead, you'd +like to map back to the original code (i.e. CoffeeScript). UglifyJS has an +option to take an input source map. Assuming you have a mapping from +CoffeeScript → compiled JS, UglifyJS can generate a map from CoffeeScript → +compressed JS by mapping every token in the compiled JS to its original +location. + +To use this feature pass `--source-map content="/path/to/input/source.map"` +or `--source-map content=inline` if the source map is included inline with +the sources. + +## CLI compress options + +You need to pass `--compress` (`-c`) to enable the compressor. Optionally +you can pass a comma-separated list of [compress options](#compress-options). + +Options are in the form `foo=bar`, or just `foo` (the latter implies +a boolean option that you want to set `true`; it's effectively a +shortcut for `foo=true`). + +Example: + + uglifyjs file.js -c toplevel,sequences=false + +## CLI mangle options + +To enable the mangler you need to pass `--mangle` (`-m`). The following +(comma-separated) options are supported: + +- `toplevel` — mangle names declared in the top level scope (disabled by + default). + +- `eval` — mangle names visible in scopes where `eval` or `with` are used + (disabled by default). + +When mangling is enabled but you want to prevent certain names from being +mangled, you can declare those names with `--mangle reserved` — pass a +comma-separated list of names. For example: + + uglifyjs ... -m reserved=[$,require,exports] + +to prevent the `require`, `exports` and `$` names from being changed. + +### CLI mangling property names (`--mangle-props`) + +**Note:** THIS WILL PROBABLY BREAK YOUR CODE. Mangling property names +is a separate step, different from variable name mangling. Pass +`--mangle-props` to enable it. It will mangle all properties in the +input code with the exception of built in DOM properties and properties +in core javascript classes. For example: + +```javascript +// example.js +var x = { + baz_: 0, + foo_: 1, + calc: function() { + return this.foo_ + this.baz_; + } +}; +x.bar_ = 2; +x["baz_"] = 3; +console.log(x.calc()); +``` +Mangle all properties (except for javascript `builtins`): +```bash +$ uglifyjs example.js -c -m --mangle-props +``` +```javascript +var x={o:0,_:1,l:function(){return this._+this.o}};x.t=2,x.o=3,console.log(x.l()); +``` +Mangle all properties except for `reserved` properties: +```bash +$ uglifyjs example.js -c -m --mangle-props reserved=[foo_,bar_] +``` +```javascript +var x={o:0,foo_:1,_:function(){return this.foo_+this.o}};x.bar_=2,x.o=3,console.log(x._()); +``` +Mangle all properties matching a `regex`: +```bash +$ uglifyjs example.js -c -m --mangle-props regex=/_$/ +``` +```javascript +var x={o:0,_:1,calc:function(){return this._+this.o}};x.l=2,x.o=3,console.log(x.calc()); +``` + +Combining mangle properties options: +```bash +$ uglifyjs example.js -c -m --mangle-props regex=/_$/,reserved=[bar_] +``` +```javascript +var x={o:0,_:1,calc:function(){return this._+this.o}};x.bar_=2,x.o=3,console.log(x.calc()); +``` + +In order for this to be of any use, we avoid mangling standard JS names by +default (`--mangle-props builtins` to override). + +A default exclusion file is provided in `tools/domprops.json` which should +cover most standard JS and DOM properties defined in various browsers. Pass +`--mangle-props domprops` to disable this feature. + +A regular expression can be used to define which property names should be +mangled. For example, `--mangle-props regex=/^_/` will only mangle property +names that start with an underscore. + +When you compress multiple files using this option, in order for them to +work together in the end we need to ensure somehow that one property gets +mangled to the same name in all of them. For this, pass `--name-cache filename.json` +and UglifyJS will maintain these mappings in a file which can then be reused. +It should be initially empty. Example: + +```bash +$ rm -f /tmp/cache.json # start fresh +$ uglifyjs file1.js file2.js --mangle-props --name-cache /tmp/cache.json -o part1.js +$ uglifyjs file3.js file4.js --mangle-props --name-cache /tmp/cache.json -o part2.js +``` + +Now, `part1.js` and `part2.js` will be consistent with each other in terms +of mangled property names. + +Using the name cache is not necessary if you compress all your files in a +single call to UglifyJS. + +### Mangling unquoted names (`--mangle-props keep_quoted`) + +Using quoted property name (`o["foo"]`) reserves the property name (`foo`) +so that it is not mangled throughout the entire script even when used in an +unquoted style (`o.foo`). Example: + +```javascript +// stuff.js +var o = { + "foo": 1, + bar: 3 +}; +o.foo += o.bar; +console.log(o.foo); +``` +```bash +$ uglifyjs stuff.js --mangle-props keep_quoted -c -m +``` +```javascript +var o={foo:1,o:3};o.foo+=o.o,console.log(o.foo); +``` + +### Debugging property name mangling + +You can also pass `--mangle-props debug` in order to mangle property names +without completely obscuring them. For example the property `o.foo` +would mangle to `o._$foo$_` with this option. This allows property mangling +of a large codebase while still being able to debug the code and identify +where mangling is breaking things. + +```bash +$ uglifyjs stuff.js --mangle-props debug -c -m +``` +```javascript +var o={_$foo$_:1,_$bar$_:3};o._$foo$_+=o._$bar$_,console.log(o._$foo$_); +``` + +You can also pass a custom suffix using `--mangle-props debug=XYZ`. This would then +mangle `o.foo` to `o._$foo$XYZ_`. You can change this each time you compile a +script to identify how a property got mangled. One technique is to pass a +random number on every compile to simulate mangling changing with different +inputs (e.g. as you update the input script with new properties), and to help +identify mistakes like writing mangled keys to storage. + + +# API Reference + +Assuming installation via NPM, you can load UglifyJS in your application +like this: +```javascript +var UglifyJS = require("uglify-js"); +``` + +There is a single high level function, **`minify(code, options)`**, +which will perform all minification [phases](#minify-options) in a configurable +manner. By default `minify()` will enable the options [`compress`](#compress-options) +and [`mangle`](#mangle-options). Example: +```javascript +var code = "function add(first, second) { return first + second; }"; +var result = UglifyJS.minify(code); +console.log(result.error); // runtime error, or `undefined` if no error +console.log(result.code); // minified output: function add(n,d){return n+d} +``` + +You can `minify` more than one JavaScript file at a time by using an object +for the first argument where the keys are file names and the values are source +code: +```javascript +var code = { + "file1.js": "function add(first, second) { return first + second; }", + "file2.js": "console.log(add(1 + 2, 3 + 4));" +}; +var result = UglifyJS.minify(code); +console.log(result.code); +// function add(d,n){return d+n}console.log(add(3,7)); +``` + +The `toplevel` option: +```javascript +var code = { + "file1.js": "function add(first, second) { return first + second; }", + "file2.js": "console.log(add(1 + 2, 3 + 4));" +}; +var options = { toplevel: true }; +var result = UglifyJS.minify(code, options); +console.log(result.code); +// console.log(3+7); +``` + +The `nameCache` option: +```javascript +var options = { + mangle: { + toplevel: true, + }, + nameCache: {} +}; +var result1 = UglifyJS.minify({ + "file1.js": "function add(first, second) { return first + second; }" +}, options); +var result2 = UglifyJS.minify({ + "file2.js": "console.log(add(1 + 2, 3 + 4));" +}, options); +console.log(result1.code); +// function n(n,r){return n+r} +console.log(result2.code); +// console.log(n(3,7)); +``` + +You may persist the name cache to the file system in the following way: +```javascript +var cacheFileName = "/tmp/cache.json"; +var options = { + mangle: { + properties: true, + }, + nameCache: JSON.parse(fs.readFileSync(cacheFileName, "utf8")) +}; +fs.writeFileSync("part1.js", UglifyJS.minify({ + "file1.js": fs.readFileSync("file1.js", "utf8"), + "file2.js": fs.readFileSync("file2.js", "utf8") +}, options).code, "utf8"); +fs.writeFileSync("part2.js", UglifyJS.minify({ + "file3.js": fs.readFileSync("file3.js", "utf8"), + "file4.js": fs.readFileSync("file4.js", "utf8") +}, options).code, "utf8"); +fs.writeFileSync(cacheFileName, JSON.stringify(options.nameCache), "utf8"); +``` + +An example of a combination of `minify()` options: +```javascript +var code = { + "file1.js": "function add(first, second) { return first + second; }", + "file2.js": "console.log(add(1 + 2, 3 + 4));" +}; +var options = { + toplevel: true, + compress: { + global_defs: { + "@console.log": "alert" + }, + passes: 2 + }, + output: { + beautify: false, + preamble: "/* uglified */" + } +}; +var result = UglifyJS.minify(code, options); +console.log(result.code); +// /* uglified */ +// alert(10);" +``` + +To produce warnings: +```javascript +var code = "function f(){ var u; return 2 + 3; }"; +var options = { warnings: true }; +var result = UglifyJS.minify(code, options); +console.log(result.error); // runtime error, `undefined` in this case +console.log(result.warnings); // [ 'Dropping unused variable u [0:1,18]' ] +console.log(result.code); // function f(){return 5} +``` + +An error example: +```javascript +var result = UglifyJS.minify({"foo.js" : "if (0) else console.log(1);"}); +console.log(JSON.stringify(result.error)); +// {"message":"Unexpected token: keyword (else)","filename":"foo.js","line":1,"col":7,"pos":7} +``` +Note: unlike `uglify-js@2.x`, the `3.x` API does not throw errors. To +achieve a similar effect one could do the following: +```javascript +var result = UglifyJS.minify(code, options); +if (result.error) throw result.error; +``` + +## Minify options + +- `warnings` (default `false`) — pass `true` to return compressor warnings + in `result.warnings`. Use the value `"verbose"` for more detailed warnings. + +- `parse` (default `{}`) — pass an object if you wish to specify some + additional [parse options](#parse-options). + +- `compress` (default `{}`) — pass `false` to skip compressing entirely. + Pass an object to specify custom [compress options](#compress-options). + +- `mangle` (default `true`) — pass `false` to skip mangling names, or pass + an object to specify [mangle options](#mangle-options) (see below). + + - `mangle.properties` (default `false`) — a subcategory of the mangle option. + Pass an object to specify custom [mangle property options](#mangle-properties-options). + +- `output` (default `null`) — pass an object if you wish to specify + additional [output options](#output-options). The defaults are optimized + for best compression. + +- `sourceMap` (default `false`) - pass an object if you wish to specify + [source map options](#source-map-options). + +- `toplevel` (default `false`) - set to `true` if you wish to enable top level + variable and function name mangling and to drop unused variables and functions. + +- `nameCache` (default `null`) - pass an empty object `{}` or a previously + used `nameCache` object if you wish to cache mangled variable and + property names across multiple invocations of `minify()`. Note: this is + a read/write property. `minify()` will read the name cache state of this + object and update it during minification so that it may be + reused or externally persisted by the user. + +- `ie8` (default `false`) - set to `true` to support IE8. + +## Minify options structure + +```javascript +{ + warnings: false, + parse: { + // parse options + }, + compress: { + // compress options + }, + mangle: { + // mangle options + + properties: { + // mangle property options + } + }, + output: { + // output options + }, + sourceMap: { + // source map options + }, + nameCache: null, // or specify a name cache object + toplevel: false, + ie8: false, +} +``` + +### Source map options + +To generate a source map: +```javascript +var result = UglifyJS.minify({"file1.js": "var a = function() {};"}, { + sourceMap: { + filename: "out.js", + url: "out.js.map" + } +}); +console.log(result.code); // minified output +console.log(result.map); // source map +``` + +Note that the source map is not saved in a file, it's just returned in +`result.map`. The value passed for `sourceMap.url` is only used to set +`//# sourceMappingURL=out.js.map` in `result.code`. The value of +`filename` is only used to set `file` attribute (see [the spec][sm-spec]) +in source map file. + +You can set option `sourceMap.url` to be `"inline"` and source map will +be appended to code. + +You can also specify sourceRoot property to be included in source map: +```javascript +var result = UglifyJS.minify({"file1.js": "var a = function() {};"}, { + sourceMap: { + root: "http://example.com/src", + url: "out.js.map" + } +}); +``` + +If you're compressing compiled JavaScript and have a source map for it, you +can use `sourceMap.content`: +```javascript +var result = UglifyJS.minify({"compiled.js": "compiled code"}, { + sourceMap: { + content: "content from compiled.js.map", + url: "minified.js.map" + } +}); +// same as before, it returns `code` and `map` +``` + +If you're using the `X-SourceMap` header instead, you can just omit `sourceMap.url`. + +## Parse options + +- `bare_returns` (default `false`) -- support top level `return` statements +- `html5_comments` (default `true`) +- `shebang` (default `true`) -- support `#!command` as the first line + +## Compress options + +- `sequences` (default: true) -- join consecutive simple statements using the + comma operator. May be set to a positive integer to specify the maximum number + of consecutive comma sequences that will be generated. If this option is set to + `true` then the default `sequences` limit is `200`. Set option to `false` or `0` + to disable. The smallest `sequences` length is `2`. A `sequences` value of `1` + is grandfathered to be equivalent to `true` and as such means `200`. On rare + occasions the default sequences limit leads to very slow compress times in which + case a value of `20` or less is recommended. + +- `properties` -- rewrite property access using the dot notation, for + example `foo["bar"] → foo.bar` + +- `dead_code` -- remove unreachable code + +- `drop_debugger` -- remove `debugger;` statements + +- `unsafe` (default: false) -- apply "unsafe" transformations (discussion below) + +- `unsafe_comps` (default: false) -- Reverse `<` and `<=` to `>` and `>=` to + allow improved compression. This might be unsafe when an at least one of two + operands is an object with computed values due the use of methods like `get`, + or `valueOf`. This could cause change in execution order after operands in the + comparison are switching. Compression only works if both `comparisons` and + `unsafe_comps` are both set to true. + +- `unsafe_Func` (default: false) -- compress and mangle `Function(args, code)` + when both `args` and `code` are string literals. + +- `unsafe_math` (default: false) -- optimize numerical expressions like + `2 * x * 3` into `6 * x`, which may give imprecise floating point results. + +- `unsafe_proto` (default: false) -- optimize expressions like + `Array.prototype.slice.call(a)` into `[].slice.call(a)` + +- `unsafe_regexp` (default: false) -- enable substitutions of variables with + `RegExp` values the same way as if they are constants. + +- `conditionals` -- apply optimizations for `if`-s and conditional + expressions + +- `comparisons` -- apply certain optimizations to binary nodes, for example: + `!(a <= b) → a > b` (only when `unsafe_comps`), attempts to negate binary + nodes, e.g. `a = !b && !c && !d && !e → a=!(b||c||d||e)` etc. + +- `evaluate` -- attempt to evaluate constant expressions + +- `booleans` -- various optimizations for boolean context, for example `!!a + ? b : c → a ? b : c` + +- `typeofs` -- default `true`. Transforms `typeof foo == "undefined"` into + `foo === void 0`. Note: recommend to set this value to `false` for IE10 and + earlier versions due to known issues. + +- `loops` -- optimizations for `do`, `while` and `for` loops when we can + statically determine the condition + +- `unused` -- drop unreferenced functions and variables (simple direct variable + assignments do not count as references unless set to `"keep_assign"`) + +- `toplevel` -- drop unreferenced functions (`"funcs"`) and/or variables (`"vars"`) + in the top level scope (`false` by default, `true` to drop both unreferenced + functions and variables) + +- `top_retain` -- prevent specific toplevel functions and variables from `unused` + removal (can be array, comma-separated, RegExp or function. Implies `toplevel`) + +- `hoist_funs` -- hoist function declarations + +- `hoist_vars` (default: false) -- hoist `var` declarations (this is `false` + by default because it seems to increase the size of the output in general) + +- `if_return` -- optimizations for if/return and if/continue + +- `inline` -- embed simple functions + +- `join_vars` -- join consecutive `var` statements + +- `cascade` -- small optimization for sequences, transform `x, x` into `x` + and `x = something(), x` into `x = something()` + +- `collapse_vars` -- Collapse single-use non-constant variables - side + effects permitting. + +- `reduce_vars` -- Improve optimization on variables assigned with and + used as constant values. + +- `warnings` -- display warnings when dropping unreachable code or unused + declarations etc. + +- `negate_iife` -- negate "Immediately-Called Function Expressions" + where the return value is discarded, to avoid the parens that the + code generator would insert. + +- `pure_getters` -- the default is `false`. If you pass `true` for + this, UglifyJS will assume that object property access + (e.g. `foo.bar` or `foo["bar"]`) doesn't have any side effects. + Specify `"strict"` to treat `foo.bar` as side-effect-free only when + `foo` is certain to not throw, i.e. not `null` or `undefined`. + +- `pure_funcs` -- default `null`. You can pass an array of names and + UglifyJS will assume that those functions do not produce side + effects. DANGER: will not check if the name is redefined in scope. + An example case here, for instance `var q = Math.floor(a/b)`. If + variable `q` is not used elsewhere, UglifyJS will drop it, but will + still keep the `Math.floor(a/b)`, not knowing what it does. You can + pass `pure_funcs: [ 'Math.floor' ]` to let it know that this + function won't produce any side effect, in which case the whole + statement would get discarded. The current implementation adds some + overhead (compression will be slower). + +- `drop_console` -- default `false`. Pass `true` to discard calls to + `console.*` functions. If you wish to drop a specific function call + such as `console.info` and/or retain side effects from function arguments + after dropping the function call then use `pure_funcs` instead. + +- `expression` -- default `false`. Pass `true` to preserve completion values + from terminal statements without `return`, e.g. in bookmarklets. + +- `keep_fargs` -- default `true`. Prevents the + compressor from discarding unused function arguments. You need this + for code which relies on `Function.length`. + +- `keep_fnames` -- default `false`. Pass `true` to prevent the + compressor from discarding function names. Useful for code relying on + `Function.prototype.name`. See also: the `keep_fnames` [mangle option](#mangle). + +- `passes` -- default `1`. The maximum number of times to run compress. + In some cases more than one pass leads to further compressed code. Keep in + mind more passes will take more time. + +- `keep_infinity` -- default `false`. Pass `true` to prevent `Infinity` from + being compressed into `1/0`, which may cause performance issues on Chrome. + +- `side_effects` -- default `true`. Pass `false` to disable potentially dropping + functions marked as "pure". A function call is marked as "pure" if a comment + annotation `/*@__PURE__*/` or `/*#__PURE__*/` immediately precedes the call. For + example: `/*@__PURE__*/foo();` + +## Mangle options + +- `reserved` (default `[]`). Pass an array of identifiers that should be + excluded from mangling. Example: `["foo", "bar"]`. + +- `toplevel` (default `false`). Pass `true` to mangle names declared in the + top level scope. + +- `keep_fnames` (default `false`). Pass `true` to not mangle function names. + Useful for code relying on `Function.prototype.name`. See also: the `keep_fnames` + [compress option](#compress-options). + +- `eval` (default `false`). Pass `true` to mangle names visible in scopes + where `eval` or `with` are used. + +Examples: + +```javascript +// test.js +var globalVar; +function funcName(firstLongName, anotherLongName) { + var myVariable = firstLongName + anotherLongName; +} +``` +```javascript +var code = fs.readFileSync("test.js", "utf8"); + +UglifyJS.minify(code).code; +// 'function funcName(a,n){}var globalVar;' + +UglifyJS.minify(code, { mangle: { reserved: ['firstLongName'] } }).code; +// 'function funcName(firstLongName,a){}var globalVar;' + +UglifyJS.minify(code, { mangle: { toplevel: true } }).code; +// 'function n(n,a){}var a;' +``` + +### Mangle properties options + +- `reserved` (default: `[]`) -- Do not mangle property names listed in the + `reserved` array. +- `regex` (default: `null`) -— Pass a RegExp literal to only mangle property + names matching the regular expression. +- `keep_quoted` (default: `false`) -— Only mangle unquoted property names. +- `debug` (default: `false`) -— Mangle names with the original name still present. + Pass an empty string `""` to enable, or a non-empty string to set the debug suffix. +- `builtins` (default: `false`) -- Use `true` to allow the mangling of builtin + DOM properties. Not recommended to override this setting. + +## Output options + +The code generator tries to output shortest code possible by default. In +case you want beautified output, pass `--beautify` (`-b`). Optionally you +can pass additional arguments that control the code output: + +- `ascii_only` (default `false`) -- escape Unicode characters in strings and + regexps (affects directives with non-ascii characters becoming invalid) +- `beautify` (default `true`) -- whether to actually beautify the output. + Passing `-b` will set this to true, but you might need to pass `-b` even + when you want to generate minified code, in order to specify additional + arguments, so you can use `-b beautify=false` to override it. +- `bracketize` (default `false`) -- always insert brackets in `if`, `for`, + `do`, `while` or `with` statements, even if their body is a single + statement. +- `comments` (default `false`) -- pass `true` or `"all"` to preserve all + comments, `"some"` to preserve some comments, a regular expression string + (e.g. `/^!/`) or a function. +- `indent_level` (default 4) +- `indent_start` (default 0) -- prefix all lines by that many spaces +- `inline_script` (default `false`) -- escape the slash in occurrences of + `= 0) program.helpInformation = UglifyJS.describe_ast; +else if (process.argv.indexOf("options") >= 0) program.helpInformation = function() { + var text = []; + var options = UglifyJS.default_options(); + for (var option in options) { + text.push("--" + (option == "output" ? "beautify" : option == "sourceMap" ? "source-map" : option) + " options:"); + text.push(format_object(options[option])); + text.push(""); + } + return text.join("\n"); +}; +program.option("-p, --parse ", "Specify parser options.", parse_js()); +program.option("-c, --compress [options]", "Enable compressor/specify compressor options.", parse_js()); +program.option("-m, --mangle [options]", "Mangle names/specify mangler options.", parse_js()); +program.option("--mangle-props [options]", "Mangle properties/specify mangler options.", parse_js()); +program.option("-b, --beautify [options]", "Beautify output/specify output options.", parse_js()); +program.option("-o, --output ", "Output file (default STDOUT)."); +program.option("--comments [filter]", "Preserve copyright comments in the output."); +program.option("--config-file ", "Read minify() options from JSON file."); +program.option("-d, --define [=value]", "Global definitions.", parse_js("define")); +program.option("--ie8", "Support non-standard Internet Explorer 8."); +program.option("--keep-fnames", "Do not mangle/drop function names. Useful for code relying on Function.prototype.name."); +program.option("--name-cache ", "File to hold mangled name mappings."); +program.option("--self", "Build UglifyJS as a library (implies --wrap UglifyJS)"); +program.option("--source-map [options]", "Enable source map/specify source map options.", parse_source_map()); +program.option("--timings", "Display operations run time on STDERR.") +program.option("--toplevel", "Compress and/or mangle variables in toplevel scope."); +program.option("--verbose", "Print diagnostic messages."); +program.option("--warn", "Print warning messages."); +program.option("--wrap ", "Embed everything as a function with “exports” corresponding to “name” globally."); +program.arguments("[files...]").parseArgv(process.argv); +if (program.configFile) { + options = JSON.parse(read_file(program.configFile)); +} +if (!program.output && program.sourceMap && program.sourceMap.url != "inline") { + fatal("ERROR: cannot write source map to STDOUT"); +} +[ + "compress", + "ie8", + "mangle", + "sourceMap", + "toplevel", + "wrap" +].forEach(function(name) { + if (name in program) { + options[name] = program[name]; + } +}); +if (program.beautify) { + options.output = typeof program.beautify == "object" ? program.beautify : {}; + if (!("beautify" in options.output)) { + options.output.beautify = true; + } +} +if (program.comments) { + if (typeof options.output != "object") options.output = {}; + options.output.comments = typeof program.comments == "string" ? program.comments : "some"; +} +if (program.define) { + if (typeof options.compress != "object") options.compress = {}; + if (typeof options.compress.global_defs != "object") options.compress.global_defs = {}; + for (var expr in program.define) { + options.compress.global_defs[expr] = program.define[expr]; + } +} +if (program.keepFnames) { + options.keep_fnames = true; +} +if (program.mangleProps) { + if (program.mangleProps.domprops) { + delete program.mangleProps.domprops; + } else { + if (typeof program.mangleProps != "object") program.mangleProps = {}; + if (!Array.isArray(program.mangleProps.reserved)) program.mangleProps.reserved = []; + require("../tools/domprops").forEach(function(name) { + UglifyJS._push_uniq(program.mangleProps.reserved, name); + }); + } + if (typeof options.mangle != "object") options.mangle = {}; + options.mangle.properties = program.mangleProps; +} +if (program.nameCache) { + options.nameCache = JSON.parse(read_file(program.nameCache, "{}")); +} +if (program.output == "ast") { + options.output = { + ast: true, + code: false + }; +} +if (program.parse) { + if (!program.parse.acorn && !program.parse.spidermonkey) { + options.parse = program.parse; + } else if (program.sourceMap && program.sourceMap.content == "inline") { + fatal("ERROR: inline source map only works with built-in parser"); + } +} +var convert_path = function(name) { + return name; +}; +if (typeof program.sourceMap == "object" && "base" in program.sourceMap) { + convert_path = function() { + var base = program.sourceMap.base; + delete options.sourceMap.base; + return function(name) { + return path.relative(base, name); + }; + }(); +} +if (program.verbose) { + options.warnings = "verbose"; +} else if (program.warn) { + options.warnings = true; +} +if (program.self) { + if (program.args.length) { + print_error("WARN: Ignoring input files since --self was passed"); + } + if (!options.wrap) options.wrap = "UglifyJS"; + simple_glob(UglifyJS.FILES).forEach(function(name) { + files[convert_path(name)] = read_file(name); + }); + run(); +} else if (program.args.length) { + simple_glob(program.args).forEach(function(name) { + files[convert_path(name)] = read_file(name); + }); + run(); +} else { + var chunks = []; + process.stdin.setEncoding("utf8"); + process.stdin.on("data", function(chunk) { + chunks.push(chunk); + }).on("end", function() { + files = [ chunks.join("") ]; + run(); + }); + process.stdin.resume(); +} + +function convert_ast(fn) { + return UglifyJS.AST_Node.from_mozilla_ast(Object.keys(files).reduce(fn, null)); +} + +function run() { + UglifyJS.AST_Node.warn_function = function(msg) { + print_error("WARN: " + msg); + }; + if (program.timings) options.timings = true; + try { + if (program.parse) { + if (program.parse.acorn) { + files = convert_ast(function(toplevel, name) { + return require("acorn").parse(files[name], { + locations: true, + program: toplevel, + sourceFile: name + }); + }); + } else if (program.parse.spidermonkey) { + files = convert_ast(function(toplevel, name) { + var obj = JSON.parse(files[name]); + if (!toplevel) return obj; + toplevel.body = toplevel.body.concat(obj.body); + return toplevel; + }); + } + } + } catch (ex) { + fatal(ex); + } + var result = UglifyJS.minify(files, options); + if (result.error) { + var ex = result.error; + if (ex.name == "SyntaxError") { + print_error("Parse error at " + ex.filename + ":" + ex.line + "," + ex.col); + var col = ex.col; + var lines = files[ex.filename].split(/\r?\n/); + var line = lines[ex.line - 1]; + if (!line && !col) { + line = lines[ex.line - 2]; + col = line.length; + } + if (line) { + var limit = 70; + if (col > limit) { + line = line.slice(col - limit); + col = limit; + } + print_error(line.slice(0, 80)); + print_error(line.slice(0, col).replace(/\S/g, " ") + "^"); + } + } + if (ex.defs) { + print_error("Supported options:"); + print_error(format_object(ex.defs)); + } + fatal(ex); + } else if (program.output == "ast") { + print(JSON.stringify(result.ast, function(key, value) { + if (skip_key(key)) return; + if (value instanceof UglifyJS.AST_Token) return; + if (value instanceof UglifyJS.Dictionary) return; + if (value instanceof UglifyJS.AST_Node) { + var result = { + _class: "AST_" + value.TYPE + }; + value.CTOR.PROPS.forEach(function(prop) { + result[prop] = value[prop]; + }); + return result; + } + return value; + }, 2)); + } else if (program.output == "spidermonkey") { + print(JSON.stringify(UglifyJS.minify(result.code, { + compress: false, + mangle: false, + output: { + ast: true, + code: false + } + }).ast.to_mozilla_ast(), null, 2)); + } else if (program.output) { + fs.writeFileSync(program.output, result.code); + if (result.map) { + fs.writeFileSync(program.output + ".map", result.map); + } + } else { + print(result.code); + } + if (program.nameCache) { + fs.writeFileSync(program.nameCache, JSON.stringify(options.nameCache)); + } + if (result.timings) for (var phase in result.timings) { + print_error("- " + phase + ": " + result.timings[phase].toFixed(3) + "s"); + } +} + +function fatal(message) { + if (message instanceof Error) message = message.stack.replace(/^\S*?Error:/, "ERROR:") + print_error(message); + process.exit(1); +} + +// A file glob function that only supports "*" and "?" wildcards in the basename. +// Example: "foo/bar/*baz??.*.js" +// Argument `glob` may be a string or an array of strings. +// Returns an array of strings. Garbage in, garbage out. +function simple_glob(glob) { + if (Array.isArray(glob)) { + return [].concat.apply([], glob.map(simple_glob)); + } + if (glob.match(/\*|\?/)) { + var dir = path.dirname(glob); + try { + var entries = fs.readdirSync(dir); + } catch (ex) {} + if (entries) { + var pattern = "^" + path.basename(glob) + .replace(/[.+^$[\]\\(){}]/g, "\\$&") + .replace(/\*/g, "[^/\\\\]*") + .replace(/\?/g, "[^/\\\\]") + "$"; + var mod = process.platform === "win32" ? "i" : ""; + var rx = new RegExp(pattern, mod); + var results = entries.filter(function(name) { + return rx.test(name); + }).map(function(name) { + return path.join(dir, name); + }); + if (results.length) return results; + } + } + return [ glob ]; +} + +function read_file(path, default_value) { + try { + return fs.readFileSync(path, "utf8"); + } catch (ex) { + if (ex.code == "ENOENT" && default_value != null) return default_value; + fatal(ex); + } +} + +function parse_js(flag) { + return function(value, options) { + options = options || {}; + try { + UglifyJS.minify(value, { + parse: { + expression: true + }, + compress: false, + mangle: false, + output: { + ast: true, + code: false + } + }).ast.walk(new UglifyJS.TreeWalker(function(node) { + if (node instanceof UglifyJS.AST_Assign) { + var name = node.left.print_to_string(); + var value = node.right; + if (flag) { + options[name] = value; + } else if (value instanceof UglifyJS.AST_Array) { + options[name] = value.elements.map(to_string); + } else { + options[name] = to_string(value); + } + return true; + } + if (node instanceof UglifyJS.AST_Symbol || node instanceof UglifyJS.AST_PropAccess) { + var name = node.print_to_string(); + options[name] = true; + return true; + } + if (!(node instanceof UglifyJS.AST_Sequence)) throw node; + + function to_string(value) { + return value instanceof UglifyJS.AST_Constant ? value.getValue() : value.print_to_string({ + quote_keys: true + }); + } + })); + } catch(ex) { + if (flag) { + fatal("Error parsing arguments for '" + flag + "': " + value); + } else { + options[value] = null; + } + } + return options; + } +} + +function parse_source_map() { + var parse = parse_js(); + return function(value, options) { + var hasContent = options && "content" in options; + var settings = parse(value, options); + if (!hasContent && settings.content && settings.content != "inline") { + print_error("INFO: Using input source map: " + settings.content); + settings.content = read_file(settings.content, settings.content); + } + return settings; + } +} + +function skip_key(key) { + return skip_keys.indexOf(key) >= 0; +} + +function format_object(obj) { + var lines = []; + var padding = ""; + Object.keys(obj).map(function(name) { + if (padding.length < name.length) padding = Array(name.length + 1).join(" "); + return [ name, JSON.stringify(obj[name]) ]; + }).forEach(function(tokens) { + lines.push(" " + tokens[0] + padding.slice(tokens[0].length - 2) + tokens[1]); + }); + return lines.join("\n"); +} + +function print_error(msg) { + process.stderr.write(msg); + process.stderr.write("\n"); +} + +function print(txt) { + process.stdout.write(txt); + process.stdout.write("\n"); +} diff --git a/node_modules/html-minifier/node_modules/uglify-js/lib/ast.js b/node_modules/html-minifier/node_modules/uglify-js/lib/ast.js new file mode 100644 index 000000000..0918574d1 --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/lib/ast.js @@ -0,0 +1,934 @@ +/*********************************************************************** + + A JavaScript tokenizer / parser / beautifier / compressor. + https://github.com/mishoo/UglifyJS2 + + -------------------------------- (C) --------------------------------- + + Author: Mihai Bazon + + http://mihai.bazon.net/blog + + Distributed under the BSD license: + + Copyright 2012 (c) Mihai Bazon + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above + copyright notice, this list of conditions and the following + disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + + ***********************************************************************/ + +"use strict"; + +function DEFNODE(type, props, methods, base) { + if (arguments.length < 4) base = AST_Node; + if (!props) props = []; + else props = props.split(/\s+/); + var self_props = props; + if (base && base.PROPS) + props = props.concat(base.PROPS); + var code = "return function AST_" + type + "(props){ if (props) { "; + for (var i = props.length; --i >= 0;) { + code += "this." + props[i] + " = props." + props[i] + ";"; + } + var proto = base && new base; + if (proto && proto.initialize || (methods && methods.initialize)) + code += "this.initialize();"; + code += "}}"; + var ctor = new Function(code)(); + if (proto) { + ctor.prototype = proto; + ctor.BASE = base; + } + if (base) base.SUBCLASSES.push(ctor); + ctor.prototype.CTOR = ctor; + ctor.PROPS = props || null; + ctor.SELF_PROPS = self_props; + ctor.SUBCLASSES = []; + if (type) { + ctor.prototype.TYPE = ctor.TYPE = type; + } + if (methods) for (i in methods) if (HOP(methods, i)) { + if (/^\$/.test(i)) { + ctor[i.substr(1)] = methods[i]; + } else { + ctor.prototype[i] = methods[i]; + } + } + ctor.DEFMETHOD = function(name, method) { + this.prototype[name] = method; + }; + if (typeof exports !== "undefined") { + exports["AST_" + type] = ctor; + } + return ctor; +}; + +var AST_Token = DEFNODE("Token", "type value line col pos endline endcol endpos nlb comments_before file raw", { +}, null); + +var AST_Node = DEFNODE("Node", "start end", { + _clone: function(deep) { + if (deep) { + var self = this.clone(); + return self.transform(new TreeTransformer(function(node) { + if (node !== self) { + return node.clone(true); + } + })); + } + return new this.CTOR(this); + }, + clone: function(deep) { + return this._clone(deep); + }, + $documentation: "Base class of all AST nodes", + $propdoc: { + start: "[AST_Token] The first token of this node", + end: "[AST_Token] The last token of this node" + }, + _walk: function(visitor) { + return visitor._visit(this); + }, + walk: function(visitor) { + return this._walk(visitor); // not sure the indirection will be any help + } +}, null); + +AST_Node.warn_function = null; +AST_Node.warn = function(txt, props) { + if (AST_Node.warn_function) + AST_Node.warn_function(string_template(txt, props)); +}; + +/* -----[ statements ]----- */ + +var AST_Statement = DEFNODE("Statement", null, { + $documentation: "Base class of all statements", +}); + +var AST_Debugger = DEFNODE("Debugger", null, { + $documentation: "Represents a debugger statement", +}, AST_Statement); + +var AST_Directive = DEFNODE("Directive", "value scope quote", { + $documentation: "Represents a directive, like \"use strict\";", + $propdoc: { + value: "[string] The value of this directive as a plain string (it's not an AST_String!)", + scope: "[AST_Scope/S] The scope that this directive affects", + quote: "[string] the original quote character" + }, +}, AST_Statement); + +var AST_SimpleStatement = DEFNODE("SimpleStatement", "body", { + $documentation: "A statement consisting of an expression, i.e. a = 1 + 2", + $propdoc: { + body: "[AST_Node] an expression node (should not be instanceof AST_Statement)" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.body._walk(visitor); + }); + } +}, AST_Statement); + +function walk_body(node, visitor) { + var body = node.body; + if (body instanceof AST_Statement) { + body._walk(visitor); + } + else for (var i = 0, len = body.length; i < len; i++) { + body[i]._walk(visitor); + } +}; + +var AST_Block = DEFNODE("Block", "body", { + $documentation: "A body of statements (usually bracketed)", + $propdoc: { + body: "[AST_Statement*] an array of statements" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + walk_body(this, visitor); + }); + } +}, AST_Statement); + +var AST_BlockStatement = DEFNODE("BlockStatement", null, { + $documentation: "A block statement", +}, AST_Block); + +var AST_EmptyStatement = DEFNODE("EmptyStatement", null, { + $documentation: "The empty statement (empty block or simply a semicolon)" +}, AST_Statement); + +var AST_StatementWithBody = DEFNODE("StatementWithBody", "body", { + $documentation: "Base class for all statements that contain one nested body: `For`, `ForIn`, `Do`, `While`, `With`", + $propdoc: { + body: "[AST_Statement] the body; this should always be present, even if it's an AST_EmptyStatement" + } +}, AST_Statement); + +var AST_LabeledStatement = DEFNODE("LabeledStatement", "label", { + $documentation: "Statement with a label", + $propdoc: { + label: "[AST_Label] a label definition" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.label._walk(visitor); + this.body._walk(visitor); + }); + }, + clone: function(deep) { + var node = this._clone(deep); + if (deep) { + var label = node.label; + var def = this.label; + node.walk(new TreeWalker(function(node) { + if (node instanceof AST_LoopControl + && node.label && node.label.thedef === def) { + node.label.thedef = label; + label.references.push(node); + } + })); + } + return node; + } +}, AST_StatementWithBody); + +var AST_IterationStatement = DEFNODE("IterationStatement", null, { + $documentation: "Internal class. All loops inherit from it." +}, AST_StatementWithBody); + +var AST_DWLoop = DEFNODE("DWLoop", "condition", { + $documentation: "Base class for do/while statements", + $propdoc: { + condition: "[AST_Node] the loop condition. Should not be instanceof AST_Statement" + } +}, AST_IterationStatement); + +var AST_Do = DEFNODE("Do", null, { + $documentation: "A `do` statement", + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.body._walk(visitor); + this.condition._walk(visitor); + }); + } +}, AST_DWLoop); + +var AST_While = DEFNODE("While", null, { + $documentation: "A `while` statement", + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.condition._walk(visitor); + this.body._walk(visitor); + }); + } +}, AST_DWLoop); + +var AST_For = DEFNODE("For", "init condition step", { + $documentation: "A `for` statement", + $propdoc: { + init: "[AST_Node?] the `for` initialization code, or null if empty", + condition: "[AST_Node?] the `for` termination clause, or null if empty", + step: "[AST_Node?] the `for` update clause, or null if empty" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + if (this.init) this.init._walk(visitor); + if (this.condition) this.condition._walk(visitor); + if (this.step) this.step._walk(visitor); + this.body._walk(visitor); + }); + } +}, AST_IterationStatement); + +var AST_ForIn = DEFNODE("ForIn", "init name object", { + $documentation: "A `for ... in` statement", + $propdoc: { + init: "[AST_Node] the `for/in` initialization code", + name: "[AST_SymbolRef?] the loop variable, only if `init` is AST_Var", + object: "[AST_Node] the object that we're looping through" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.init._walk(visitor); + this.object._walk(visitor); + this.body._walk(visitor); + }); + } +}, AST_IterationStatement); + +var AST_With = DEFNODE("With", "expression", { + $documentation: "A `with` statement", + $propdoc: { + expression: "[AST_Node] the `with` expression" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.expression._walk(visitor); + this.body._walk(visitor); + }); + } +}, AST_StatementWithBody); + +/* -----[ scope and functions ]----- */ + +var AST_Scope = DEFNODE("Scope", "directives variables functions uses_with uses_eval parent_scope enclosed cname", { + $documentation: "Base class for all statements introducing a lexical scope", + $propdoc: { + directives: "[string*/S] an array of directives declared in this scope", + variables: "[Object/S] a map of name -> SymbolDef for all variables/functions defined in this scope", + functions: "[Object/S] like `variables`, but only lists function declarations", + uses_with: "[boolean/S] tells whether this scope uses the `with` statement", + uses_eval: "[boolean/S] tells whether this scope contains a direct call to the global `eval`", + parent_scope: "[AST_Scope?/S] link to the parent scope", + enclosed: "[SymbolDef*/S] a list of all symbol definitions that are accessed from this scope or any subscopes", + cname: "[integer/S] current index for mangling variables (used internally by the mangler)", + }, +}, AST_Block); + +var AST_Toplevel = DEFNODE("Toplevel", "globals", { + $documentation: "The toplevel scope", + $propdoc: { + globals: "[Object/S] a map of name -> SymbolDef for all undeclared names", + }, + wrap_commonjs: function(name) { + var body = this.body; + var wrapped_tl = "(function(exports){'$ORIG';})(typeof " + name + "=='undefined'?(" + name + "={}):" + name + ");"; + wrapped_tl = parse(wrapped_tl); + wrapped_tl = wrapped_tl.transform(new TreeTransformer(function before(node){ + if (node instanceof AST_Directive && node.value == "$ORIG") { + return MAP.splice(body); + } + })); + return wrapped_tl; + } +}, AST_Scope); + +var AST_Lambda = DEFNODE("Lambda", "name argnames uses_arguments", { + $documentation: "Base class for functions", + $propdoc: { + name: "[AST_SymbolDeclaration?] the name of this function", + argnames: "[AST_SymbolFunarg*] array of function arguments", + uses_arguments: "[boolean/S] tells whether this function accesses the arguments array" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + if (this.name) this.name._walk(visitor); + var argnames = this.argnames; + for (var i = 0, len = argnames.length; i < len; i++) { + argnames[i]._walk(visitor); + } + walk_body(this, visitor); + }); + } +}, AST_Scope); + +var AST_Accessor = DEFNODE("Accessor", null, { + $documentation: "A setter/getter function. The `name` property is always null." +}, AST_Lambda); + +var AST_Function = DEFNODE("Function", null, { + $documentation: "A function expression" +}, AST_Lambda); + +var AST_Defun = DEFNODE("Defun", null, { + $documentation: "A function definition" +}, AST_Lambda); + +/* -----[ JUMPS ]----- */ + +var AST_Jump = DEFNODE("Jump", null, { + $documentation: "Base class for “jumps” (for now that's `return`, `throw`, `break` and `continue`)" +}, AST_Statement); + +var AST_Exit = DEFNODE("Exit", "value", { + $documentation: "Base class for “exits” (`return` and `throw`)", + $propdoc: { + value: "[AST_Node?] the value returned or thrown by this statement; could be null for AST_Return" + }, + _walk: function(visitor) { + return visitor._visit(this, this.value && function(){ + this.value._walk(visitor); + }); + } +}, AST_Jump); + +var AST_Return = DEFNODE("Return", null, { + $documentation: "A `return` statement" +}, AST_Exit); + +var AST_Throw = DEFNODE("Throw", null, { + $documentation: "A `throw` statement" +}, AST_Exit); + +var AST_LoopControl = DEFNODE("LoopControl", "label", { + $documentation: "Base class for loop control statements (`break` and `continue`)", + $propdoc: { + label: "[AST_LabelRef?] the label, or null if none", + }, + _walk: function(visitor) { + return visitor._visit(this, this.label && function(){ + this.label._walk(visitor); + }); + } +}, AST_Jump); + +var AST_Break = DEFNODE("Break", null, { + $documentation: "A `break` statement" +}, AST_LoopControl); + +var AST_Continue = DEFNODE("Continue", null, { + $documentation: "A `continue` statement" +}, AST_LoopControl); + +/* -----[ IF ]----- */ + +var AST_If = DEFNODE("If", "condition alternative", { + $documentation: "A `if` statement", + $propdoc: { + condition: "[AST_Node] the `if` condition", + alternative: "[AST_Statement?] the `else` part, or null if not present" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.condition._walk(visitor); + this.body._walk(visitor); + if (this.alternative) this.alternative._walk(visitor); + }); + } +}, AST_StatementWithBody); + +/* -----[ SWITCH ]----- */ + +var AST_Switch = DEFNODE("Switch", "expression", { + $documentation: "A `switch` statement", + $propdoc: { + expression: "[AST_Node] the `switch` “discriminant”" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.expression._walk(visitor); + walk_body(this, visitor); + }); + } +}, AST_Block); + +var AST_SwitchBranch = DEFNODE("SwitchBranch", null, { + $documentation: "Base class for `switch` branches", +}, AST_Block); + +var AST_Default = DEFNODE("Default", null, { + $documentation: "A `default` switch branch", +}, AST_SwitchBranch); + +var AST_Case = DEFNODE("Case", "expression", { + $documentation: "A `case` switch branch", + $propdoc: { + expression: "[AST_Node] the `case` expression" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.expression._walk(visitor); + walk_body(this, visitor); + }); + } +}, AST_SwitchBranch); + +/* -----[ EXCEPTIONS ]----- */ + +var AST_Try = DEFNODE("Try", "bcatch bfinally", { + $documentation: "A `try` statement", + $propdoc: { + bcatch: "[AST_Catch?] the catch block, or null if not present", + bfinally: "[AST_Finally?] the finally block, or null if not present" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + walk_body(this, visitor); + if (this.bcatch) this.bcatch._walk(visitor); + if (this.bfinally) this.bfinally._walk(visitor); + }); + } +}, AST_Block); + +var AST_Catch = DEFNODE("Catch", "argname", { + $documentation: "A `catch` node; only makes sense as part of a `try` statement", + $propdoc: { + argname: "[AST_SymbolCatch] symbol for the exception" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.argname._walk(visitor); + walk_body(this, visitor); + }); + } +}, AST_Block); + +var AST_Finally = DEFNODE("Finally", null, { + $documentation: "A `finally` node; only makes sense as part of a `try` statement" +}, AST_Block); + +/* -----[ VAR ]----- */ + +var AST_Definitions = DEFNODE("Definitions", "definitions", { + $documentation: "Base class for `var` nodes (variable declarations/initializations)", + $propdoc: { + definitions: "[AST_VarDef*] array of variable definitions" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + var definitions = this.definitions; + for (var i = 0, len = definitions.length; i < len; i++) { + definitions[i]._walk(visitor); + } + }); + } +}, AST_Statement); + +var AST_Var = DEFNODE("Var", null, { + $documentation: "A `var` statement" +}, AST_Definitions); + +var AST_VarDef = DEFNODE("VarDef", "name value", { + $documentation: "A variable declaration; only appears in a AST_Definitions node", + $propdoc: { + name: "[AST_SymbolVar] name of the variable", + value: "[AST_Node?] initializer, or null of there's no initializer" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.name._walk(visitor); + if (this.value) this.value._walk(visitor); + }); + } +}); + +/* -----[ OTHER ]----- */ + +var AST_Call = DEFNODE("Call", "expression args", { + $documentation: "A function call expression", + $propdoc: { + expression: "[AST_Node] expression to invoke as function", + args: "[AST_Node*] array of arguments" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + var args = this.args; + for (var i = 0, len = args.length; i < len; i++) { + args[i]._walk(visitor); + } + this.expression._walk(visitor); + }); + } +}); + +var AST_New = DEFNODE("New", null, { + $documentation: "An object instantiation. Derives from a function call since it has exactly the same properties" +}, AST_Call); + +var AST_Sequence = DEFNODE("Sequence", "expressions", { + $documentation: "A sequence expression (comma-separated expressions)", + $propdoc: { + expressions: "[AST_Node*] array of expressions (at least two)" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.expressions.forEach(function(node) { + node._walk(visitor); + }); + }); + } +}); + +var AST_PropAccess = DEFNODE("PropAccess", "expression property", { + $documentation: "Base class for property access expressions, i.e. `a.foo` or `a[\"foo\"]`", + $propdoc: { + expression: "[AST_Node] the “container” expression", + property: "[AST_Node|string] the property to access. For AST_Dot this is always a plain string, while for AST_Sub it's an arbitrary AST_Node" + } +}); + +var AST_Dot = DEFNODE("Dot", null, { + $documentation: "A dotted property access expression", + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.expression._walk(visitor); + }); + } +}, AST_PropAccess); + +var AST_Sub = DEFNODE("Sub", null, { + $documentation: "Index-style property access, i.e. `a[\"foo\"]`", + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.expression._walk(visitor); + this.property._walk(visitor); + }); + } +}, AST_PropAccess); + +var AST_Unary = DEFNODE("Unary", "operator expression", { + $documentation: "Base class for unary expressions", + $propdoc: { + operator: "[string] the operator", + expression: "[AST_Node] expression that this unary operator applies to" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.expression._walk(visitor); + }); + } +}); + +var AST_UnaryPrefix = DEFNODE("UnaryPrefix", null, { + $documentation: "Unary prefix expression, i.e. `typeof i` or `++i`" +}, AST_Unary); + +var AST_UnaryPostfix = DEFNODE("UnaryPostfix", null, { + $documentation: "Unary postfix expression, i.e. `i++`" +}, AST_Unary); + +var AST_Binary = DEFNODE("Binary", "operator left right", { + $documentation: "Binary expression, i.e. `a + b`", + $propdoc: { + left: "[AST_Node] left-hand side expression", + operator: "[string] the operator", + right: "[AST_Node] right-hand side expression" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.left._walk(visitor); + this.right._walk(visitor); + }); + } +}); + +var AST_Conditional = DEFNODE("Conditional", "condition consequent alternative", { + $documentation: "Conditional expression using the ternary operator, i.e. `a ? b : c`", + $propdoc: { + condition: "[AST_Node]", + consequent: "[AST_Node]", + alternative: "[AST_Node]" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.condition._walk(visitor); + this.consequent._walk(visitor); + this.alternative._walk(visitor); + }); + } +}); + +var AST_Assign = DEFNODE("Assign", null, { + $documentation: "An assignment expression — `a = b + 5`", +}, AST_Binary); + +/* -----[ LITERALS ]----- */ + +var AST_Array = DEFNODE("Array", "elements", { + $documentation: "An array literal", + $propdoc: { + elements: "[AST_Node*] array of elements" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + var elements = this.elements; + for (var i = 0, len = elements.length; i < len; i++) { + elements[i]._walk(visitor); + } + }); + } +}); + +var AST_Object = DEFNODE("Object", "properties", { + $documentation: "An object literal", + $propdoc: { + properties: "[AST_ObjectProperty*] array of properties" + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + var properties = this.properties; + for (var i = 0, len = properties.length; i < len; i++) { + properties[i]._walk(visitor); + } + }); + } +}); + +var AST_ObjectProperty = DEFNODE("ObjectProperty", "key value", { + $documentation: "Base class for literal object properties", + $propdoc: { + key: "[string] the property name converted to a string for ObjectKeyVal. For setters and getters this is an AST_SymbolAccessor.", + value: "[AST_Node] property value. For setters and getters this is an AST_Accessor." + }, + _walk: function(visitor) { + return visitor._visit(this, function(){ + this.value._walk(visitor); + }); + } +}); + +var AST_ObjectKeyVal = DEFNODE("ObjectKeyVal", "quote", { + $documentation: "A key: value object property", + $propdoc: { + quote: "[string] the original quote character" + } +}, AST_ObjectProperty); + +var AST_ObjectSetter = DEFNODE("ObjectSetter", null, { + $documentation: "An object setter property", +}, AST_ObjectProperty); + +var AST_ObjectGetter = DEFNODE("ObjectGetter", null, { + $documentation: "An object getter property", +}, AST_ObjectProperty); + +var AST_Symbol = DEFNODE("Symbol", "scope name thedef", { + $propdoc: { + name: "[string] name of this symbol", + scope: "[AST_Scope/S] the current scope (not necessarily the definition scope)", + thedef: "[SymbolDef/S] the definition of this symbol" + }, + $documentation: "Base class for all symbols", +}); + +var AST_SymbolAccessor = DEFNODE("SymbolAccessor", null, { + $documentation: "The name of a property accessor (setter/getter function)" +}, AST_Symbol); + +var AST_SymbolDeclaration = DEFNODE("SymbolDeclaration", "init", { + $documentation: "A declaration symbol (symbol in var, function name or argument, symbol in catch)", +}, AST_Symbol); + +var AST_SymbolVar = DEFNODE("SymbolVar", null, { + $documentation: "Symbol defining a variable", +}, AST_SymbolDeclaration); + +var AST_SymbolFunarg = DEFNODE("SymbolFunarg", null, { + $documentation: "Symbol naming a function argument", +}, AST_SymbolVar); + +var AST_SymbolDefun = DEFNODE("SymbolDefun", null, { + $documentation: "Symbol defining a function", +}, AST_SymbolDeclaration); + +var AST_SymbolLambda = DEFNODE("SymbolLambda", null, { + $documentation: "Symbol naming a function expression", +}, AST_SymbolDeclaration); + +var AST_SymbolCatch = DEFNODE("SymbolCatch", null, { + $documentation: "Symbol naming the exception in catch", +}, AST_SymbolDeclaration); + +var AST_Label = DEFNODE("Label", "references", { + $documentation: "Symbol naming a label (declaration)", + $propdoc: { + references: "[AST_LoopControl*] a list of nodes referring to this label" + }, + initialize: function() { + this.references = []; + this.thedef = this; + } +}, AST_Symbol); + +var AST_SymbolRef = DEFNODE("SymbolRef", null, { + $documentation: "Reference to some symbol (not definition/declaration)", +}, AST_Symbol); + +var AST_LabelRef = DEFNODE("LabelRef", null, { + $documentation: "Reference to a label symbol", +}, AST_Symbol); + +var AST_This = DEFNODE("This", null, { + $documentation: "The `this` symbol", +}, AST_Symbol); + +var AST_Constant = DEFNODE("Constant", null, { + $documentation: "Base class for all constants", + getValue: function() { + return this.value; + } +}); + +var AST_String = DEFNODE("String", "value quote", { + $documentation: "A string literal", + $propdoc: { + value: "[string] the contents of this string", + quote: "[string] the original quote character" + } +}, AST_Constant); + +var AST_Number = DEFNODE("Number", "value literal", { + $documentation: "A number literal", + $propdoc: { + value: "[number] the numeric value", + literal: "[string] numeric value as string (optional)" + } +}, AST_Constant); + +var AST_RegExp = DEFNODE("RegExp", "value", { + $documentation: "A regexp literal", + $propdoc: { + value: "[RegExp] the actual regexp" + } +}, AST_Constant); + +var AST_Atom = DEFNODE("Atom", null, { + $documentation: "Base class for atoms", +}, AST_Constant); + +var AST_Null = DEFNODE("Null", null, { + $documentation: "The `null` atom", + value: null +}, AST_Atom); + +var AST_NaN = DEFNODE("NaN", null, { + $documentation: "The impossible value", + value: 0/0 +}, AST_Atom); + +var AST_Undefined = DEFNODE("Undefined", null, { + $documentation: "The `undefined` value", + value: (function(){}()) +}, AST_Atom); + +var AST_Hole = DEFNODE("Hole", null, { + $documentation: "A hole in an array", + value: (function(){}()) +}, AST_Atom); + +var AST_Infinity = DEFNODE("Infinity", null, { + $documentation: "The `Infinity` value", + value: 1/0 +}, AST_Atom); + +var AST_Boolean = DEFNODE("Boolean", null, { + $documentation: "Base class for booleans", +}, AST_Atom); + +var AST_False = DEFNODE("False", null, { + $documentation: "The `false` atom", + value: false +}, AST_Boolean); + +var AST_True = DEFNODE("True", null, { + $documentation: "The `true` atom", + value: true +}, AST_Boolean); + +/* -----[ TreeWalker ]----- */ + +function TreeWalker(callback) { + this.visit = callback; + this.stack = []; + this.directives = Object.create(null); +}; +TreeWalker.prototype = { + _visit: function(node, descend) { + this.push(node); + var ret = this.visit(node, descend ? function(){ + descend.call(node); + } : noop); + if (!ret && descend) { + descend.call(node); + } + this.pop(); + return ret; + }, + parent: function(n) { + return this.stack[this.stack.length - 2 - (n || 0)]; + }, + push: function(node) { + if (node instanceof AST_Lambda) { + this.directives = Object.create(this.directives); + } else if (node instanceof AST_Directive && !this.directives[node.value]) { + this.directives[node.value] = node; + } + this.stack.push(node); + }, + pop: function() { + if (this.stack.pop() instanceof AST_Lambda) { + this.directives = Object.getPrototypeOf(this.directives); + } + }, + self: function() { + return this.stack[this.stack.length - 1]; + }, + find_parent: function(type) { + var stack = this.stack; + for (var i = stack.length; --i >= 0;) { + var x = stack[i]; + if (x instanceof type) return x; + } + }, + has_directive: function(type) { + var dir = this.directives[type]; + if (dir) return dir; + var node = this.stack[this.stack.length - 1]; + if (node instanceof AST_Scope) { + for (var i = 0; i < node.body.length; ++i) { + var st = node.body[i]; + if (!(st instanceof AST_Directive)) break; + if (st.value == type) return st; + } + } + }, + in_boolean_context: function() { + var stack = this.stack; + var i = stack.length, self = stack[--i]; + while (i > 0) { + var p = stack[--i]; + if ((p instanceof AST_If && p.condition === self) || + (p instanceof AST_Conditional && p.condition === self) || + (p instanceof AST_DWLoop && p.condition === self) || + (p instanceof AST_For && p.condition === self) || + (p instanceof AST_UnaryPrefix && p.operator == "!" && p.expression === self)) + { + return true; + } + if (!(p instanceof AST_Binary && (p.operator == "&&" || p.operator == "||"))) + return false; + self = p; + } + }, + loopcontrol_target: function(node) { + var stack = this.stack; + if (node.label) for (var i = stack.length; --i >= 0;) { + var x = stack[i]; + if (x instanceof AST_LabeledStatement && x.label.name == node.label.name) + return x.body; + } else for (var i = stack.length; --i >= 0;) { + var x = stack[i]; + if (x instanceof AST_IterationStatement + || node instanceof AST_Break && x instanceof AST_Switch) + return x; + } + } +}; diff --git a/node_modules/html-minifier/node_modules/uglify-js/lib/compress.js b/node_modules/html-minifier/node_modules/uglify-js/lib/compress.js new file mode 100644 index 000000000..7a16ba86b --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/lib/compress.js @@ -0,0 +1,4507 @@ +/*********************************************************************** + + A JavaScript tokenizer / parser / beautifier / compressor. + https://github.com/mishoo/UglifyJS2 + + -------------------------------- (C) --------------------------------- + + Author: Mihai Bazon + + http://mihai.bazon.net/blog + + Distributed under the BSD license: + + Copyright 2012 (c) Mihai Bazon + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above + copyright notice, this list of conditions and the following + disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + + ***********************************************************************/ + +"use strict"; + +function Compressor(options, false_by_default) { + if (!(this instanceof Compressor)) + return new Compressor(options, false_by_default); + TreeTransformer.call(this, this.before, this.after); + this.options = defaults(options, { + booleans : !false_by_default, + cascade : !false_by_default, + collapse_vars : !false_by_default, + comparisons : !false_by_default, + conditionals : !false_by_default, + dead_code : !false_by_default, + drop_console : false, + drop_debugger : !false_by_default, + evaluate : !false_by_default, + expression : false, + global_defs : {}, + hoist_funs : !false_by_default, + hoist_vars : false, + ie8 : false, + if_return : !false_by_default, + inline : !false_by_default, + join_vars : !false_by_default, + keep_fargs : true, + keep_fnames : false, + keep_infinity : false, + loops : !false_by_default, + negate_iife : !false_by_default, + passes : 1, + properties : !false_by_default, + pure_getters : !false_by_default && "strict", + pure_funcs : null, + reduce_vars : !false_by_default, + sequences : !false_by_default, + side_effects : !false_by_default, + switches : !false_by_default, + top_retain : null, + toplevel : !!(options && options["top_retain"]), + typeofs : !false_by_default, + unsafe : false, + unsafe_comps : false, + unsafe_Func : false, + unsafe_math : false, + unsafe_proto : false, + unsafe_regexp : false, + unused : !false_by_default, + warnings : false, + }, true); + var global_defs = this.options["global_defs"]; + if (typeof global_defs == "object") for (var key in global_defs) { + if (/^@/.test(key) && HOP(global_defs, key)) { + global_defs[key.slice(1)] = parse(global_defs[key], { + expression: true + }); + } + } + var pure_funcs = this.options["pure_funcs"]; + if (typeof pure_funcs == "function") { + this.pure_funcs = pure_funcs; + } else { + this.pure_funcs = pure_funcs ? function(node) { + return pure_funcs.indexOf(node.expression.print_to_string()) < 0; + } : return_true; + } + var top_retain = this.options["top_retain"]; + if (top_retain instanceof RegExp) { + this.top_retain = function(def) { + return top_retain.test(def.name); + }; + } else if (typeof top_retain == "function") { + this.top_retain = top_retain; + } else if (top_retain) { + if (typeof top_retain == "string") { + top_retain = top_retain.split(/,/); + } + this.top_retain = function(def) { + return top_retain.indexOf(def.name) >= 0; + }; + } + var toplevel = this.options["toplevel"]; + this.toplevel = typeof toplevel == "string" ? { + funcs: /funcs/.test(toplevel), + vars: /vars/.test(toplevel) + } : { + funcs: toplevel, + vars: toplevel + }; + var sequences = this.options["sequences"]; + this.sequences_limit = sequences == 1 ? 800 : sequences | 0; + this.warnings_produced = {}; +}; + +Compressor.prototype = new TreeTransformer; +merge(Compressor.prototype, { + option: function(key) { return this.options[key] }, + exposed: function(def) { + if (def.global) for (var i = 0, len = def.orig.length; i < len; i++) + if (!this.toplevel[def.orig[i] instanceof AST_SymbolDefun ? "funcs" : "vars"]) + return true; + return false; + }, + compress: function(node) { + if (this.option("expression")) { + node.process_expression(true); + } + var passes = +this.options.passes || 1; + var last_count = 1 / 0; + for (var pass = 0; pass < passes; pass++) { + if (pass > 0 || this.option("reduce_vars")) + node.reset_opt_flags(this, true); + node = node.transform(this); + if (passes > 1) { + var count = 0; + node.walk(new TreeWalker(function() { + count++; + })); + this.info("pass " + pass + ": last_count: " + last_count + ", count: " + count); + if (count >= last_count) break; + last_count = count; + } + } + if (this.option("expression")) { + node.process_expression(false); + } + return node; + }, + info: function() { + if (this.options.warnings == "verbose") { + AST_Node.warn.apply(AST_Node, arguments); + } + }, + warn: function(text, props) { + if (this.options.warnings) { + // only emit unique warnings + var message = string_template(text, props); + if (!(message in this.warnings_produced)) { + this.warnings_produced[message] = true; + AST_Node.warn.apply(AST_Node, arguments); + } + } + }, + clear_warnings: function() { + this.warnings_produced = {}; + }, + before: function(node, descend, in_list) { + if (node._squeezed) return node; + var was_scope = false; + if (node instanceof AST_Scope) { + node = node.hoist_declarations(this); + was_scope = true; + } + // Before https://github.com/mishoo/UglifyJS2/pull/1602 AST_Node.optimize() + // would call AST_Node.transform() if a different instance of AST_Node is + // produced after OPT(). + // This corrupts TreeWalker.stack, which cause AST look-ups to malfunction. + // Migrate and defer all children's AST_Node.transform() to below, which + // will now happen after this parent AST_Node has been properly substituted + // thus gives a consistent AST snapshot. + descend(node, this); + // Existing code relies on how AST_Node.optimize() worked, and omitting the + // following replacement call would result in degraded efficiency of both + // output and performance. + descend(node, this); + var opt = node.optimize(this); + if (was_scope && opt instanceof AST_Scope) { + opt.drop_unused(this); + descend(opt, this); + } + if (opt === node) opt._squeezed = true; + return opt; + } +}); + +(function(){ + + function OPT(node, optimizer) { + node.DEFMETHOD("optimize", function(compressor){ + var self = this; + if (self._optimized) return self; + if (compressor.has_directive("use asm")) return self; + var opt = optimizer(self, compressor); + opt._optimized = true; + return opt; + }); + }; + + OPT(AST_Node, function(self, compressor){ + return self; + }); + + AST_Node.DEFMETHOD("equivalent_to", function(node){ + return this.TYPE == node.TYPE && this.print_to_string() == node.print_to_string(); + }); + + AST_Scope.DEFMETHOD("process_expression", function(insert, compressor) { + var self = this; + var tt = new TreeTransformer(function(node) { + if (insert && node instanceof AST_SimpleStatement) { + return make_node(AST_Return, node, { + value: node.body + }); + } + if (!insert && node instanceof AST_Return) { + if (compressor) { + var value = node.value && node.value.drop_side_effect_free(compressor, true); + return value ? make_node(AST_SimpleStatement, node, { + body: value + }) : make_node(AST_EmptyStatement, node); + } + return make_node(AST_SimpleStatement, node, { + body: node.value || make_node(AST_UnaryPrefix, node, { + operator: "void", + expression: make_node(AST_Number, node, { + value: 0 + }) + }) + }); + } + if (node instanceof AST_Lambda && node !== self) { + return node; + } + if (node instanceof AST_Block) { + var index = node.body.length - 1; + if (index >= 0) { + node.body[index] = node.body[index].transform(tt); + } + } + if (node instanceof AST_If) { + node.body = node.body.transform(tt); + if (node.alternative) { + node.alternative = node.alternative.transform(tt); + } + } + if (node instanceof AST_With) { + node.body = node.body.transform(tt); + } + return node; + }); + self.transform(tt); + }); + + AST_Node.DEFMETHOD("reset_opt_flags", function(compressor, rescan) { + var reduce_vars = rescan && compressor.option("reduce_vars"); + var safe_ids = Object.create(null); + var suppressor = new TreeWalker(function(node) { + if (!(node instanceof AST_Symbol)) return; + var d = node.definition(); + if (!d) return; + if (node instanceof AST_SymbolRef) d.references.push(node); + d.fixed = false; + }); + var tw = new TreeWalker(function(node, descend) { + node._squeezed = false; + node._optimized = false; + if (reduce_vars) { + if (node instanceof AST_Toplevel) node.globals.each(reset_def); + if (node instanceof AST_Scope) node.variables.each(reset_def); + if (node instanceof AST_SymbolRef) { + var d = node.definition(); + d.references.push(node); + if (d.fixed === undefined || !safe_to_read(d) + || is_modified(node, 0, is_immutable(node.fixed_value()))) { + d.fixed = false; + } else { + var parent = tw.parent(); + if (parent instanceof AST_Assign && parent.operator == "=" && node === parent.right + || parent instanceof AST_Call && node !== parent.expression + || parent instanceof AST_Return && node === parent.value && node.scope !== d.scope + || parent instanceof AST_VarDef && node === parent.value) { + d.escaped = true; + } + } + } + if (node instanceof AST_SymbolCatch) { + node.definition().fixed = false; + } + if (node instanceof AST_VarDef) { + var d = node.name.definition(); + if (d.fixed === undefined || safe_to_assign(d, node.value)) { + if (node.value) { + d.fixed = function() { + return node.value; + }; + mark(d, false); + descend(); + } else { + d.fixed = null; + } + mark(d, true); + return true; + } else if (node.value) { + d.fixed = false; + } + } + if (node instanceof AST_Assign + && node.operator == "=" + && node.left instanceof AST_SymbolRef) { + var d = node.left.definition(); + if (safe_to_assign(d, node.right)) { + d.references.push(node.left); + d.fixed = function() { + return node.right; + }; + mark(d, false); + node.right.walk(tw); + mark(d, true); + return true; + } + } + if (node instanceof AST_Defun) { + var d = node.name.definition(); + if (compressor.exposed(d) || safe_to_read(d)) { + d.fixed = false; + } else { + d.fixed = node; + mark(d, true); + } + var save_ids = safe_ids; + safe_ids = Object.create(null); + descend(); + safe_ids = save_ids; + return true; + } + if (node instanceof AST_Function) { + push(); + var iife; + if (!node.name + && (iife = tw.parent()) instanceof AST_Call + && iife.expression === node) { + // Virtually turn IIFE parameters into variable definitions: + // (function(a,b) {...})(c,d) => (function() {var a=c,b=d; ...})() + // So existing transformation rules can work on them. + node.argnames.forEach(function(arg, i) { + var d = arg.definition(); + if (!node.uses_arguments && d.fixed === undefined) { + d.fixed = function() { + return iife.args[i] || make_node(AST_Undefined, iife); + }; + mark(d, true); + } else { + d.fixed = false; + } + }); + } + descend(); + pop(); + return true; + } + if (node instanceof AST_Accessor) { + var save_ids = safe_ids; + safe_ids = Object.create(null); + descend(); + safe_ids = save_ids; + return true; + } + if (node instanceof AST_Binary + && (node.operator == "&&" || node.operator == "||")) { + node.left.walk(tw); + push(); + node.right.walk(tw); + pop(); + return true; + } + if (node instanceof AST_Conditional) { + node.condition.walk(tw); + push(); + node.consequent.walk(tw); + pop(); + push(); + node.alternative.walk(tw); + pop(); + return true; + } + if (node instanceof AST_If) { + node.condition.walk(tw); + push(); + node.body.walk(tw); + pop(); + if (node.alternative) { + push(); + node.alternative.walk(tw); + pop(); + } + return true; + } + if (node instanceof AST_DWLoop) { + push(); + node.condition.walk(tw); + node.body.walk(tw); + pop(); + return true; + } + if (node instanceof AST_LabeledStatement) { + push(); + node.body.walk(tw); + pop(); + return true; + } + if (node instanceof AST_For) { + if (node.init) node.init.walk(tw); + if (node.condition) { + push(); + node.condition.walk(tw); + pop(); + } + push(); + node.body.walk(tw); + pop(); + if (node.step) { + push(); + node.step.walk(tw); + pop(); + } + return true; + } + if (node instanceof AST_ForIn) { + node.init.walk(suppressor); + node.object.walk(tw); + push(); + node.body.walk(tw); + pop(); + return true; + } + if (node instanceof AST_Try) { + push(); + walk_body(node, tw); + pop(); + if (node.bcatch) { + push(); + node.bcatch.walk(tw); + pop(); + } + if (node.bfinally) node.bfinally.walk(tw); + return true; + } + if (node instanceof AST_SwitchBranch) { + push(); + descend(); + pop(); + return true; + } + } + }); + this.walk(tw); + + function mark(def, safe) { + safe_ids[def.id] = safe; + } + + function safe_to_read(def) { + if (safe_ids[def.id]) { + if (def.fixed == null) { + var orig = def.orig[0]; + if (orig instanceof AST_SymbolFunarg || orig.name == "arguments") return false; + def.fixed = make_node(AST_Undefined, orig); + } + return true; + } + } + + function safe_to_assign(def, value) { + if (!HOP(safe_ids, def.id)) return false; + if (!safe_to_read(def)) return false; + if (def.fixed === false) return false; + if (def.fixed != null && (!value || def.references.length > 0)) return false; + return !def.orig.some(function(sym) { + return sym instanceof AST_SymbolDefun + || sym instanceof AST_SymbolLambda; + }); + } + + function push() { + safe_ids = Object.create(safe_ids); + } + + function pop() { + safe_ids = Object.getPrototypeOf(safe_ids); + } + + function reset_def(def) { + def.escaped = false; + if (def.scope.uses_eval) { + def.fixed = false; + } else if (!compressor.exposed(def)) { + def.fixed = undefined; + } else { + def.fixed = false; + } + def.references = []; + def.should_replace = undefined; + } + + function is_immutable(value) { + return value && value.is_constant() || value instanceof AST_Lambda; + } + + function is_modified(node, level, immutable) { + var parent = tw.parent(level); + if (is_lhs(node, parent) + || !immutable && parent instanceof AST_Call && parent.expression === node) { + return true; + } else if (parent instanceof AST_PropAccess && parent.expression === node) { + return !immutable && is_modified(parent, level + 1); + } + } + }); + + AST_SymbolRef.DEFMETHOD("fixed_value", function() { + var fixed = this.definition().fixed; + if (!fixed || fixed instanceof AST_Node) return fixed; + return fixed(); + }); + + AST_SymbolRef.DEFMETHOD("is_immutable", function() { + var orig = this.definition().orig; + return orig.length == 1 && orig[0] instanceof AST_SymbolLambda; + }); + + function is_lhs_read_only(lhs) { + if (lhs instanceof AST_SymbolRef) return lhs.definition().orig[0] instanceof AST_SymbolLambda; + if (lhs instanceof AST_PropAccess) { + lhs = lhs.expression; + if (lhs instanceof AST_SymbolRef) { + if (lhs.is_immutable()) return false; + lhs = lhs.fixed_value(); + } + if (!lhs) return true; + if (lhs instanceof AST_RegExp) return false; + if (lhs instanceof AST_Constant) return true; + return is_lhs_read_only(lhs); + } + return false; + } + + function find_variable(compressor, name) { + var scope, i = 0; + while (scope = compressor.parent(i++)) { + if (scope instanceof AST_Scope) break; + if (scope instanceof AST_Catch) { + scope = scope.argname.definition().scope; + break; + } + } + return scope.find_variable(name); + } + + function make_node(ctor, orig, props) { + if (!props) props = {}; + if (orig) { + if (!props.start) props.start = orig.start; + if (!props.end) props.end = orig.end; + } + return new ctor(props); + }; + + function make_sequence(orig, expressions) { + if (expressions.length == 1) return expressions[0]; + return make_node(AST_Sequence, orig, { + expressions: expressions + }); + } + + function make_node_from_constant(val, orig) { + switch (typeof val) { + case "string": + return make_node(AST_String, orig, { + value: val + }); + case "number": + if (isNaN(val)) return make_node(AST_NaN, orig); + if (isFinite(val)) { + return 1 / val < 0 ? make_node(AST_UnaryPrefix, orig, { + operator: "-", + expression: make_node(AST_Number, orig, { value: -val }) + }) : make_node(AST_Number, orig, { value: val }); + } + return val < 0 ? make_node(AST_UnaryPrefix, orig, { + operator: "-", + expression: make_node(AST_Infinity, orig) + }) : make_node(AST_Infinity, orig); + case "boolean": + return make_node(val ? AST_True : AST_False, orig); + case "undefined": + return make_node(AST_Undefined, orig); + default: + if (val === null) { + return make_node(AST_Null, orig, { value: null }); + } + if (val instanceof RegExp) { + return make_node(AST_RegExp, orig, { value: val }); + } + throw new Error(string_template("Can't handle constant of type: {type}", { + type: typeof val + })); + } + }; + + // we shouldn't compress (1,func)(something) to + // func(something) because that changes the meaning of + // the func (becomes lexical instead of global). + function maintain_this_binding(parent, orig, val) { + if (parent instanceof AST_UnaryPrefix && parent.operator == "delete" + || parent instanceof AST_Call && parent.expression === orig + && (val instanceof AST_PropAccess || val instanceof AST_SymbolRef && val.name == "eval")) { + return make_sequence(orig, [ make_node(AST_Number, orig, { value: 0 }), val ]); + } + return val; + } + + function merge_sequence(array, node) { + if (node instanceof AST_Sequence) { + array.push.apply(array, node.expressions); + } else { + array.push(node); + } + } + + function as_statement_array(thing) { + if (thing === null) return []; + if (thing instanceof AST_BlockStatement) return thing.body; + if (thing instanceof AST_EmptyStatement) return []; + if (thing instanceof AST_Statement) return [ thing ]; + throw new Error("Can't convert thing to statement array"); + }; + + function is_empty(thing) { + if (thing === null) return true; + if (thing instanceof AST_EmptyStatement) return true; + if (thing instanceof AST_BlockStatement) return thing.body.length == 0; + return false; + }; + + function loop_body(x) { + if (x instanceof AST_Switch) return x; + if (x instanceof AST_For || x instanceof AST_ForIn || x instanceof AST_DWLoop) { + return (x.body instanceof AST_BlockStatement ? x.body : x); + } + return x; + }; + + function is_iife_call(node) { + if (node instanceof AST_Call && !(node instanceof AST_New)) { + return node.expression instanceof AST_Function || is_iife_call(node.expression); + } + return false; + } + + function is_undeclared_ref(node) { + return node instanceof AST_SymbolRef && node.definition().undeclared; + } + + var global_names = makePredicate("Array Boolean console Error Function Math Number RegExp Object String"); + AST_SymbolRef.DEFMETHOD("is_declared", function(compressor) { + return !this.definition().undeclared + || compressor.option("unsafe") && global_names(this.name); + }); + + function tighten_body(statements, compressor) { + var CHANGED, max_iter = 10; + do { + CHANGED = false; + eliminate_spurious_blocks(statements); + if (compressor.option("dead_code")) { + eliminate_dead_code(statements, compressor); + } + if (compressor.option("if_return")) { + handle_if_return(statements, compressor); + } + if (compressor.sequences_limit > 0) { + sequencesize(statements, compressor); + } + if (compressor.option("join_vars")) { + join_consecutive_vars(statements, compressor); + } + if (compressor.option("collapse_vars")) { + collapse(statements, compressor); + } + } while (CHANGED && max_iter-- > 0); + + // Search from right to left for assignment-like expressions: + // - `var a = x;` + // - `a = x;` + // - `++a` + // For each candidate, scan from left to right for first usage, then try + // to fold assignment into the site for compression. + // Will not attempt to collapse assignments into or past code blocks + // which are not sequentially executed, e.g. loops and conditionals. + function collapse(statements, compressor) { + var scope = compressor.find_parent(AST_Scope); + if (scope.uses_eval || scope.uses_with) return statements; + var candidates = []; + var stat_index = statements.length; + while (--stat_index >= 0) { + // Treat parameters as collapsible in IIFE, i.e. + // function(a, b){ ... }(x()); + // would be translated into equivalent assignments: + // var a = x(), b = undefined; + if (stat_index == 0 && compressor.option("unused")) extract_args(); + // Find collapsible assignments + extract_candidates(statements[stat_index]); + while (candidates.length > 0) { + var candidate = candidates.pop(); + var lhs = get_lhs(candidate); + if (!lhs || is_lhs_read_only(lhs)) continue; + // Locate symbols which may execute code outside of scanning range + var lvalues = get_lvalues(candidate); + if (lhs instanceof AST_SymbolRef) lvalues[lhs.name] = false; + var side_effects = value_has_side_effects(candidate); + var hit = candidate.name instanceof AST_SymbolFunarg; + var abort = false, replaced = false; + var tt = new TreeTransformer(function(node, descend) { + if (abort) return node; + // Skip nodes before `candidate` as quickly as possible + if (!hit) { + if (node === candidate) { + hit = true; + return node; + } + return; + } + // Stop immediately if these node types are encountered + var parent = tt.parent(); + if (node instanceof AST_Assign && node.operator != "=" && lhs.equivalent_to(node.left) + || node instanceof AST_Call && lhs instanceof AST_PropAccess && lhs.equivalent_to(node.expression) + || node instanceof AST_Debugger + || node instanceof AST_IterationStatement && !(node instanceof AST_For) + || node instanceof AST_SymbolRef && !node.is_declared(compressor) + || node instanceof AST_Try + || node instanceof AST_With + || parent instanceof AST_For && node !== parent.init) { + abort = true; + return node; + } + // Replace variable with assignment when found + if (!(node instanceof AST_SymbolDeclaration) + && !is_lhs(node, parent) + && lhs.equivalent_to(node)) { + CHANGED = replaced = abort = true; + compressor.info("Collapsing {name} [{file}:{line},{col}]", { + name: node.print_to_string(), + file: node.start.file, + line: node.start.line, + col: node.start.col + }); + if (candidate instanceof AST_UnaryPostfix) { + return make_node(AST_UnaryPrefix, candidate, candidate); + } + if (candidate instanceof AST_VarDef) { + var def = candidate.name.definition(); + if (def.references.length == 1 && !compressor.exposed(def)) { + return maintain_this_binding(parent, node, candidate.value); + } + return make_node(AST_Assign, candidate, { + operator: "=", + left: make_node(AST_SymbolRef, candidate.name, candidate.name), + right: candidate.value + }); + } + candidate.write_only = false; + return candidate; + } + // These node types have child nodes that execute sequentially, + // but are otherwise not safe to scan into or beyond them. + var sym; + if (node instanceof AST_Call + || node instanceof AST_Exit + || node instanceof AST_PropAccess + || node instanceof AST_SymbolRef + && (lvalues[node.name] + || side_effects && !references_in_scope(node.definition())) + || (sym = lhs_or_def(node)) && get_symbol(sym).name in lvalues + || parent instanceof AST_Binary + && (parent.operator == "&&" || parent.operator == "||") + || parent instanceof AST_Case + || parent instanceof AST_Conditional + || parent instanceof AST_For + || parent instanceof AST_If) { + if (!(node instanceof AST_Scope)) descend(node, tt); + abort = true; + return node; + } + // Skip (non-executed) functions and (leading) default case in switch statements + if (node instanceof AST_Default || node instanceof AST_Scope) return node; + }); + for (var i = stat_index; !abort && i < statements.length; i++) { + statements[i].transform(tt); + } + if (replaced && !remove_candidate(candidate)) statements.splice(stat_index, 1); + } + } + + function extract_args() { + var iife, fn = compressor.self(); + if (fn instanceof AST_Function + && !fn.name + && !fn.uses_arguments + && !fn.uses_eval + && (iife = compressor.parent()) instanceof AST_Call + && iife.expression === fn) { + var names = Object.create(null); + for (var i = fn.argnames.length; --i >= 0;) { + var sym = fn.argnames[i]; + if (sym.name in names) continue; + names[sym.name] = true; + var arg = iife.args[i]; + if (!arg) arg = make_node(AST_Undefined, sym); + else { + var tw = new TreeWalker(function(node) { + if (!arg) return true; + if (node instanceof AST_SymbolRef && fn.variables.has(node.name)) { + var s = node.definition().scope; + if (s !== scope) while (s = s.parent_scope) { + if (s === scope) return true; + } + arg = null; + } + if (node instanceof AST_This && !tw.find_parent(AST_Scope)) { + arg = null; + return true; + } + }); + arg.walk(tw); + } + if (arg) candidates.unshift(make_node(AST_VarDef, sym, { + name: sym, + value: arg + })); + } + } + } + + function extract_candidates(expr) { + if (expr instanceof AST_Assign && !expr.left.has_side_effects(compressor) + || expr instanceof AST_Unary && (expr.operator == "++" || expr.operator == "--")) { + candidates.push(expr); + } else if (expr instanceof AST_Sequence) { + expr.expressions.forEach(extract_candidates); + } else if (expr instanceof AST_Definitions) { + expr.definitions.forEach(function(var_def) { + if (var_def.value) candidates.push(var_def); + }); + } else if (expr instanceof AST_SimpleStatement) { + extract_candidates(expr.body); + } else if (expr instanceof AST_For && expr.init) { + extract_candidates(expr.init); + } + } + + function get_lhs(expr) { + if (expr instanceof AST_VarDef) { + var def = expr.name.definition(); + if (def.orig.length > 1 && !(expr.name instanceof AST_SymbolFunarg) + || def.references.length == 1 && !compressor.exposed(def)) { + return make_node(AST_SymbolRef, expr.name, expr.name); + } + } else { + return expr[expr instanceof AST_Assign ? "left" : "expression"]; + } + } + + function get_symbol(node) { + while (node instanceof AST_PropAccess) node = node.expression; + return node; + } + + function get_lvalues(expr) { + var lvalues = Object.create(null); + if (expr instanceof AST_Unary) return lvalues; + var scope; + var tw = new TreeWalker(function(node, descend) { + if (node instanceof AST_Scope) { + var save_scope = scope; + descend(); + scope = save_scope; + return true; + } + if (node instanceof AST_SymbolRef || node instanceof AST_PropAccess) { + var sym = get_symbol(node); + if (sym instanceof AST_SymbolRef) { + lvalues[sym.name] = lvalues[sym.name] || is_lhs(node, tw.parent()); + } + } + }); + expr[expr instanceof AST_Assign ? "right" : "value"].walk(tw); + return lvalues; + } + + function lhs_or_def(node) { + if (node instanceof AST_VarDef) return node.value && node.name; + return is_lhs(node.left, node); + } + + function remove_candidate(expr) { + if (expr.name instanceof AST_SymbolFunarg) { + var index = compressor.self().argnames.indexOf(expr.name); + var args = compressor.parent().args; + if (args[index]) args[index] = make_node(AST_Number, args[index], { + value: 0 + }); + return true; + } + var found = false; + return statements[stat_index].transform(new TreeTransformer(function(node, descend, in_list) { + if (found) return node; + if (node === expr) { + found = true; + if (node instanceof AST_VarDef) { + remove(node.name.definition().orig, node.name); + } + return in_list ? MAP.skip : null; + } + }, function(node) { + if (node instanceof AST_Sequence) switch (node.expressions.length) { + case 0: return null; + case 1: return node.expressions[0]; + } + if (node instanceof AST_Definitions && node.definitions.length == 0 + || node instanceof AST_SimpleStatement && !node.body) { + return null; + } + })); + } + + function value_has_side_effects(expr) { + if (expr instanceof AST_Unary) return false; + return expr[expr instanceof AST_Assign ? "right" : "value"].has_side_effects(compressor); + } + + function references_in_scope(def) { + if (def.orig.length == 1 && def.orig[0] instanceof AST_SymbolDefun) return true; + if (def.scope !== scope) return false; + return def.references.every(function(ref) { + return ref.scope === scope; + }); + } + } + + function eliminate_spurious_blocks(statements) { + var seen_dirs = []; + for (var i = 0; i < statements.length;) { + var stat = statements[i]; + if (stat instanceof AST_BlockStatement) { + CHANGED = true; + eliminate_spurious_blocks(stat.body); + [].splice.apply(statements, [i, 1].concat(stat.body)); + i += stat.body.length; + } else if (stat instanceof AST_EmptyStatement) { + CHANGED = true; + statements.splice(i, 1); + } else if (stat instanceof AST_Directive) { + if (seen_dirs.indexOf(stat.value) < 0) { + i++; + seen_dirs.push(stat.value); + } else { + CHANGED = true; + statements.splice(i, 1); + } + } else i++; + } + } + + function handle_if_return(statements, compressor) { + var self = compressor.self(); + var multiple_if_returns = has_multiple_if_returns(statements); + var in_lambda = self instanceof AST_Lambda; + for (var i = statements.length; --i >= 0;) { + var stat = statements[i]; + var next = statements[i + 1]; + + if (in_lambda && stat instanceof AST_Return && !stat.value && !next) { + CHANGED = true; + statements.length--; + continue; + } + + if (stat instanceof AST_If) { + var ab = aborts(stat.body); + if (can_merge_flow(ab)) { + if (ab.label) { + remove(ab.label.thedef.references, ab); + } + CHANGED = true; + stat = stat.clone(); + stat.condition = stat.condition.negate(compressor); + var body = as_statement_array_with_return(stat.body, ab); + stat.body = make_node(AST_BlockStatement, stat, { + body: as_statement_array(stat.alternative).concat(extract_functions()) + }); + stat.alternative = make_node(AST_BlockStatement, stat, { + body: body + }); + statements[i] = stat.transform(compressor); + continue; + } + + var ab = aborts(stat.alternative); + if (can_merge_flow(ab)) { + if (ab.label) { + remove(ab.label.thedef.references, ab); + } + CHANGED = true; + stat = stat.clone(); + stat.body = make_node(AST_BlockStatement, stat.body, { + body: as_statement_array(stat.body).concat(extract_functions()) + }); + var body = as_statement_array_with_return(stat.alternative, ab); + stat.alternative = make_node(AST_BlockStatement, stat.alternative, { + body: body + }); + statements[i] = stat.transform(compressor); + continue; + } + } + + if (stat instanceof AST_If && stat.body instanceof AST_Return) { + var value = stat.body.value; + //--- + // pretty silly case, but: + // if (foo()) return; return; ==> foo(); return; + if (!value && !stat.alternative + && (in_lambda && !next || next instanceof AST_Return && !next.value)) { + CHANGED = true; + statements[i] = make_node(AST_SimpleStatement, stat.condition, { + body: stat.condition + }); + continue; + } + //--- + // if (foo()) return x; return y; ==> return foo() ? x : y; + if (value && !stat.alternative && next instanceof AST_Return && next.value) { + CHANGED = true; + stat = stat.clone(); + stat.alternative = next; + statements.splice(i, 2, stat.transform(compressor)); + continue; + } + //--- + // if (foo()) return x; [ return ; ] ==> return foo() ? x : undefined; + if (multiple_if_returns && in_lambda && value && !stat.alternative + && (!next || next instanceof AST_Return)) { + CHANGED = true; + stat = stat.clone(); + stat.alternative = next || make_node(AST_Return, stat, { + value: null + }); + statements.splice(i, next ? 2 : 1, stat.transform(compressor)); + continue; + } + //--- + // if (a) return b; if (c) return d; e; ==> return a ? b : c ? d : void e; + // + // if sequences is not enabled, this can lead to an endless loop (issue #866). + // however, with sequences on this helps producing slightly better output for + // the example code. + var prev = statements[i - 1]; + if (compressor.option("sequences") && in_lambda && !stat.alternative + && prev instanceof AST_If && prev.body instanceof AST_Return + && i + 2 == statements.length && next instanceof AST_SimpleStatement) { + CHANGED = true; + statements.push(make_node(AST_Return, next, { + value: null + }).transform(compressor)); + continue; + } + } + } + + function has_multiple_if_returns(statements) { + var n = 0; + for (var i = statements.length; --i >= 0;) { + var stat = statements[i]; + if (stat instanceof AST_If && stat.body instanceof AST_Return) { + if (++n > 1) return true; + } + } + return false; + } + + function is_return_void(value) { + return !value || value instanceof AST_UnaryPrefix && value.operator == "void"; + } + + function can_merge_flow(ab) { + if (!ab) return false; + var lct = ab instanceof AST_LoopControl ? compressor.loopcontrol_target(ab) : null; + return ab instanceof AST_Return && in_lambda && is_return_void(ab.value) + || ab instanceof AST_Continue && self === loop_body(lct) + || ab instanceof AST_Break && lct instanceof AST_BlockStatement && self === lct; + } + + function extract_functions() { + var tail = statements.slice(i + 1); + statements.length = i + 1; + return tail.filter(function(stat) { + if (stat instanceof AST_Defun) { + statements.push(stat); + return false; + } + return true; + }); + } + + function as_statement_array_with_return(node, ab) { + var body = as_statement_array(node).slice(0, -1); + if (ab.value) { + body.push(make_node(AST_SimpleStatement, ab.value, { + body: ab.value.expression + })); + } + return body; + } + } + + function eliminate_dead_code(statements, compressor) { + var has_quit; + var self = compressor.self(); + for (var i = 0, n = 0, len = statements.length; i < len; i++) { + var stat = statements[i]; + if (stat instanceof AST_LoopControl) { + var lct = compressor.loopcontrol_target(stat); + if (stat instanceof AST_Break + && !(lct instanceof AST_IterationStatement) + && loop_body(lct) === self + || stat instanceof AST_Continue + && loop_body(lct) === self) { + if (stat.label) { + remove(stat.label.thedef.references, stat); + } + } else { + statements[n++] = stat; + } + } else { + statements[n++] = stat; + } + if (aborts(stat)) { + has_quit = statements.slice(i + 1); + break; + } + } + statements.length = n; + CHANGED = n != len; + if (has_quit) has_quit.forEach(function(stat) { + extract_declarations_from_unreachable_code(compressor, stat, statements); + }); + } + + function sequencesize(statements, compressor) { + if (statements.length < 2) return; + var seq = [], n = 0; + function push_seq() { + if (!seq.length) return; + var body = make_sequence(seq[0], seq); + statements[n++] = make_node(AST_SimpleStatement, body, { body: body }); + seq = []; + } + for (var i = 0, len = statements.length; i < len; i++) { + var stat = statements[i]; + if (stat instanceof AST_SimpleStatement) { + if (seq.length >= compressor.sequences_limit) push_seq(); + var body = stat.body; + if (seq.length > 0) body = body.drop_side_effect_free(compressor); + if (body) merge_sequence(seq, body); + } else { + push_seq(); + statements[n++] = stat; + } + } + push_seq(); + statements.length = n; + sequencesize_2(statements, compressor); + CHANGED = statements.length != len; + } + + function sequencesize_2(statements, compressor) { + function cons_seq(right) { + n--; + var left = prev.body; + if (!(left instanceof AST_Sequence)) { + left = make_node(AST_Sequence, left, { + expressions: [ left ] + }); + } + merge_sequence(left.expressions, right); + return left.transform(compressor); + }; + var n = 0, prev; + for (var i = 0, len = statements.length; i < len; i++) { + var stat = statements[i]; + if (prev) { + if (stat instanceof AST_For && !(stat.init instanceof AST_Definitions)) { + var abort = false; + prev.body.walk(new TreeWalker(function(node) { + if (abort || node instanceof AST_Scope) return true; + if (node instanceof AST_Binary && node.operator == "in") { + abort = true; + return true; + } + })); + if (!abort) { + if (stat.init) stat.init = cons_seq(stat.init); + else { + stat.init = prev.body.drop_side_effect_free(compressor); + n--; + } + } + } + else if (stat instanceof AST_If) { + stat.condition = cons_seq(stat.condition); + } + else if (stat instanceof AST_With) { + stat.expression = cons_seq(stat.expression); + } + else if (stat instanceof AST_Exit && stat.value) { + stat.value = cons_seq(stat.value); + } + else if (stat instanceof AST_Exit) { + stat.value = cons_seq(make_node(AST_Undefined, stat).transform(compressor)); + } + else if (stat instanceof AST_Switch) { + stat.expression = cons_seq(stat.expression); + } + } + statements[n++] = stat; + prev = stat instanceof AST_SimpleStatement ? stat : null; + } + statements.length = n; + } + + function join_consecutive_vars(statements, compressor) { + for (var i = 0, j = -1, len = statements.length; i < len; i++) { + var stat = statements[i]; + var prev = statements[j]; + if (stat instanceof AST_Definitions && prev && prev.TYPE == stat.TYPE) { + prev.definitions = prev.definitions.concat(stat.definitions); + CHANGED = true; + } + else if (stat instanceof AST_For + && prev instanceof AST_Var + && (!stat.init || stat.init.TYPE == prev.TYPE)) { + CHANGED = true; + if (stat.init) { + stat.init.definitions = prev.definitions.concat(stat.init.definitions); + } else { + stat.init = prev; + } + statements[j] = stat; + } + else { + statements[++j] = stat; + } + } + statements.length = j + 1; + }; + } + + function extract_declarations_from_unreachable_code(compressor, stat, target) { + if (!(stat instanceof AST_Defun)) { + compressor.warn("Dropping unreachable code [{file}:{line},{col}]", stat.start); + } + stat.walk(new TreeWalker(function(node){ + if (node instanceof AST_Definitions) { + compressor.warn("Declarations in unreachable code! [{file}:{line},{col}]", node.start); + node.remove_initializers(); + target.push(node); + return true; + } + if (node instanceof AST_Defun && (node === stat || !compressor.has_directive("use strict"))) { + target.push(node); + return true; + } + if (node instanceof AST_Scope) { + return true; + } + })); + }; + + function is_undefined(node, compressor) { + return node.is_undefined + || node instanceof AST_Undefined + || node instanceof AST_UnaryPrefix + && node.operator == "void" + && !node.expression.has_side_effects(compressor); + } + + // may_throw_on_access() + // returns true if this node may be null, undefined or contain `AST_Accessor` + (function(def) { + AST_Node.DEFMETHOD("may_throw_on_access", function(compressor) { + return !compressor.option("pure_getters") + || this._dot_throw(compressor); + }); + + function is_strict(compressor) { + return /strict/.test(compressor.option("pure_getters")); + } + + def(AST_Node, is_strict); + def(AST_Null, return_true); + def(AST_Undefined, return_true); + def(AST_Constant, return_false); + def(AST_Array, return_false); + def(AST_Object, function(compressor) { + if (!is_strict(compressor)) return false; + for (var i = this.properties.length; --i >=0;) + if (this.properties[i].value instanceof AST_Accessor) return true; + return false; + }); + def(AST_Function, return_false); + def(AST_UnaryPostfix, return_false); + def(AST_UnaryPrefix, function() { + return this.operator == "void"; + }); + def(AST_Binary, function(compressor) { + switch (this.operator) { + case "&&": + return this.left._dot_throw(compressor); + case "||": + return this.left._dot_throw(compressor) + && this.right._dot_throw(compressor); + default: + return false; + } + }) + def(AST_Assign, function(compressor) { + return this.operator == "=" + && this.right._dot_throw(compressor); + }) + def(AST_Conditional, function(compressor) { + return this.consequent._dot_throw(compressor) + || this.alternative._dot_throw(compressor); + }) + def(AST_Sequence, function(compressor) { + return this.expressions[this.expressions.length - 1]._dot_throw(compressor); + }); + def(AST_SymbolRef, function(compressor) { + if (this.is_undefined) return true; + if (!is_strict(compressor)) return false; + if (is_undeclared_ref(this) && this.is_declared(compressor)) return false; + if (this.is_immutable()) return false; + var fixed = this.fixed_value(); + return !fixed || fixed._dot_throw(compressor); + }); + })(function(node, func) { + node.DEFMETHOD("_dot_throw", func); + }); + + /* -----[ boolean/negation helpers ]----- */ + + // methods to determine whether an expression has a boolean result type + (function(def){ + var unary_bool = [ "!", "delete" ]; + var binary_bool = [ "in", "instanceof", "==", "!=", "===", "!==", "<", "<=", ">=", ">" ]; + def(AST_Node, return_false); + def(AST_UnaryPrefix, function(){ + return member(this.operator, unary_bool); + }); + def(AST_Binary, function(){ + return member(this.operator, binary_bool) || + ( (this.operator == "&&" || this.operator == "||") && + this.left.is_boolean() && this.right.is_boolean() ); + }); + def(AST_Conditional, function(){ + return this.consequent.is_boolean() && this.alternative.is_boolean(); + }); + def(AST_Assign, function(){ + return this.operator == "=" && this.right.is_boolean(); + }); + def(AST_Sequence, function(){ + return this.expressions[this.expressions.length - 1].is_boolean(); + }); + def(AST_True, return_true); + def(AST_False, return_true); + })(function(node, func){ + node.DEFMETHOD("is_boolean", func); + }); + + // methods to determine if an expression has a numeric result type + (function(def){ + def(AST_Node, return_false); + def(AST_Number, return_true); + var unary = makePredicate("+ - ~ ++ --"); + def(AST_Unary, function(){ + return unary(this.operator); + }); + var binary = makePredicate("- * / % & | ^ << >> >>>"); + def(AST_Binary, function(compressor){ + return binary(this.operator) || this.operator == "+" + && this.left.is_number(compressor) + && this.right.is_number(compressor); + }); + def(AST_Assign, function(compressor){ + return binary(this.operator.slice(0, -1)) + || this.operator == "=" && this.right.is_number(compressor); + }); + def(AST_Sequence, function(compressor){ + return this.expressions[this.expressions.length - 1].is_number(compressor); + }); + def(AST_Conditional, function(compressor){ + return this.consequent.is_number(compressor) && this.alternative.is_number(compressor); + }); + })(function(node, func){ + node.DEFMETHOD("is_number", func); + }); + + // methods to determine if an expression has a string result type + (function(def){ + def(AST_Node, return_false); + def(AST_String, return_true); + def(AST_UnaryPrefix, function(){ + return this.operator == "typeof"; + }); + def(AST_Binary, function(compressor){ + return this.operator == "+" && + (this.left.is_string(compressor) || this.right.is_string(compressor)); + }); + def(AST_Assign, function(compressor){ + return (this.operator == "=" || this.operator == "+=") && this.right.is_string(compressor); + }); + def(AST_Sequence, function(compressor){ + return this.expressions[this.expressions.length - 1].is_string(compressor); + }); + def(AST_Conditional, function(compressor){ + return this.consequent.is_string(compressor) && this.alternative.is_string(compressor); + }); + })(function(node, func){ + node.DEFMETHOD("is_string", func); + }); + + var unary_side_effects = makePredicate("delete ++ --"); + + function is_lhs(node, parent) { + if (parent instanceof AST_Unary && unary_side_effects(parent.operator)) return parent.expression; + if (parent instanceof AST_Assign && parent.left === node) return node; + } + + (function(def){ + AST_Node.DEFMETHOD("resolve_defines", function(compressor) { + if (!compressor.option("global_defs")) return; + var def = this._find_defs(compressor, ""); + if (def) { + var node, parent = this, level = 0; + do { + node = parent; + parent = compressor.parent(level++); + } while (parent instanceof AST_PropAccess && parent.expression === node); + if (is_lhs(node, parent)) { + compressor.warn('global_defs ' + this.print_to_string() + ' redefined [{file}:{line},{col}]', this.start); + } else { + return def; + } + } + }); + function to_node(value, orig) { + if (value instanceof AST_Node) return make_node(value.CTOR, orig, value); + if (Array.isArray(value)) return make_node(AST_Array, orig, { + elements: value.map(function(value) { + return to_node(value, orig); + }) + }); + if (value && typeof value == "object") { + var props = []; + for (var key in value) if (HOP(value, key)) { + props.push(make_node(AST_ObjectKeyVal, orig, { + key: key, + value: to_node(value[key], orig) + })); + } + return make_node(AST_Object, orig, { + properties: props + }); + } + return make_node_from_constant(value, orig); + } + def(AST_Node, noop); + def(AST_Dot, function(compressor, suffix){ + return this.expression._find_defs(compressor, "." + this.property + suffix); + }); + def(AST_SymbolRef, function(compressor, suffix){ + if (!this.global()) return; + var name; + var defines = compressor.option("global_defs"); + if (defines && HOP(defines, (name = this.name + suffix))) { + var node = to_node(defines[name], this); + var top = compressor.find_parent(AST_Toplevel); + node.walk(new TreeWalker(function(node) { + if (node instanceof AST_SymbolRef) { + node.scope = top; + node.thedef = top.def_global(node); + } + })); + return node; + } + }); + })(function(node, func){ + node.DEFMETHOD("_find_defs", func); + }); + + function best_of_expression(ast1, ast2) { + return ast1.print_to_string().length > + ast2.print_to_string().length + ? ast2 : ast1; + } + + function best_of_statement(ast1, ast2) { + return best_of_expression(make_node(AST_SimpleStatement, ast1, { + body: ast1 + }), make_node(AST_SimpleStatement, ast2, { + body: ast2 + })).body; + } + + function best_of(compressor, ast1, ast2) { + return (first_in_statement(compressor) ? best_of_statement : best_of_expression)(ast1, ast2); + } + + // methods to evaluate a constant expression + (function(def){ + // If the node has been successfully reduced to a constant, + // then its value is returned; otherwise the element itself + // is returned. + // They can be distinguished as constant value is never a + // descendant of AST_Node. + AST_Node.DEFMETHOD("evaluate", function(compressor){ + if (!compressor.option("evaluate")) return this; + var val = this._eval(compressor); + return !val || val instanceof RegExp || typeof val != "object" ? val : this; + }); + var unaryPrefix = makePredicate("! ~ - + void"); + AST_Node.DEFMETHOD("is_constant", function(){ + // Accomodate when compress option evaluate=false + // as well as the common constant expressions !0 and -1 + if (this instanceof AST_Constant) { + return !(this instanceof AST_RegExp); + } else { + return this instanceof AST_UnaryPrefix + && this.expression instanceof AST_Constant + && unaryPrefix(this.operator); + } + }); + // Obtain the constant value of an expression already known to be constant. + // Result only valid iff this.is_constant() is true. + AST_Node.DEFMETHOD("constant_value", function(compressor){ + // Accomodate when option evaluate=false. + if (this instanceof AST_Constant && !(this instanceof AST_RegExp)) { + return this.value; + } + // Accomodate the common constant expressions !0 and -1 when option evaluate=false. + if (this instanceof AST_UnaryPrefix + && this.expression instanceof AST_Constant) switch (this.operator) { + case "!": + return !this.expression.value; + case "~": + return ~this.expression.value; + case "-": + return -this.expression.value; + case "+": + return +this.expression.value; + default: + throw new Error(string_template("Cannot evaluate unary expression {value}", { + value: this.print_to_string() + })); + } + var result = this.evaluate(compressor); + if (result !== this) { + return result; + } + throw new Error(string_template("Cannot evaluate constant [{file}:{line},{col}]", this.start)); + }); + def(AST_Statement, function(){ + throw new Error(string_template("Cannot evaluate a statement [{file}:{line},{col}]", this.start)); + }); + def(AST_Lambda, return_this); + function ev(node, compressor) { + if (!compressor) throw new Error("Compressor must be passed"); + + return node._eval(compressor); + }; + def(AST_Node, return_this); + def(AST_Constant, function(){ + return this.getValue(); + }); + def(AST_Array, function(compressor){ + if (compressor.option("unsafe")) { + var elements = []; + for (var i = 0, len = this.elements.length; i < len; i++) { + var element = this.elements[i]; + var value = ev(element, compressor); + if (element === value) return this; + elements.push(value); + } + return elements; + } + return this; + }); + def(AST_Object, function(compressor){ + if (compressor.option("unsafe")) { + var val = {}; + for (var i = 0, len = this.properties.length; i < len; i++) { + var prop = this.properties[i]; + var key = prop.key; + if (key instanceof AST_Symbol) { + key = key.name; + } else if (key instanceof AST_Node) { + key = ev(key, compressor); + if (key === prop.key) return this; + } + if (typeof Object.prototype[key] === 'function') { + return this; + } + val[key] = ev(prop.value, compressor); + if (val[key] === prop.value) return this; + } + return val; + } + return this; + }); + def(AST_UnaryPrefix, function(compressor){ + // Function would be evaluated to an array and so typeof would + // incorrectly return 'object'. Hence making is a special case. + if (this.operator == "typeof" && this.expression instanceof AST_Function) { + return typeof function(){}; + } + var e = ev(this.expression, compressor); + if (e === this.expression) return this; + switch (this.operator) { + case "!": return !e; + case "typeof": + // typeof returns "object" or "function" on different platforms + // so cannot evaluate reliably + if (e instanceof RegExp) return this; + return typeof e; + case "void": return void e; + case "~": return ~e; + case "-": return -e; + case "+": return +e; + } + return this; + }); + def(AST_Binary, function(compressor){ + var left = ev(this.left, compressor); + if (left === this.left) return this; + var right = ev(this.right, compressor); + if (right === this.right) return this; + var result; + switch (this.operator) { + case "&&" : result = left && right; break; + case "||" : result = left || right; break; + case "|" : result = left | right; break; + case "&" : result = left & right; break; + case "^" : result = left ^ right; break; + case "+" : result = left + right; break; + case "*" : result = left * right; break; + case "/" : result = left / right; break; + case "%" : result = left % right; break; + case "-" : result = left - right; break; + case "<<" : result = left << right; break; + case ">>" : result = left >> right; break; + case ">>>" : result = left >>> right; break; + case "==" : result = left == right; break; + case "===" : result = left === right; break; + case "!=" : result = left != right; break; + case "!==" : result = left !== right; break; + case "<" : result = left < right; break; + case "<=" : result = left <= right; break; + case ">" : result = left > right; break; + case ">=" : result = left >= right; break; + default: + return this; + } + if (isNaN(result) && compressor.find_parent(AST_With)) { + // leave original expression as is + return this; + } + return result; + }); + def(AST_Conditional, function(compressor){ + var condition = ev(this.condition, compressor); + if (condition === this.condition) return this; + var node = condition ? this.consequent : this.alternative; + var value = ev(node, compressor); + return value === node ? this : value; + }); + def(AST_SymbolRef, function(compressor){ + if (!compressor.option("reduce_vars")) return this; + var fixed = this.fixed_value(); + if (!fixed) return this; + this._eval = return_this; + var value = ev(fixed, compressor); + if (value === fixed) { + delete this._eval; + return this; + } + if (!HOP(fixed, "_eval")) fixed._eval = function() { + return value; + }; + if (value && typeof value == "object" && this.definition().escaped) { + delete this._eval; + return this; + } + this._eval = fixed._eval; + return value; + }); + var global_objs = { + Array: Array, + Math: Math, + Number: Number, + String: String, + }; + function convert_to_predicate(obj) { + for (var key in obj) { + obj[key] = makePredicate(obj[key]); + } + } + var static_values = { + Math: [ + "E", + "LN10", + "LN2", + "LOG2E", + "LOG10E", + "PI", + "SQRT1_2", + "SQRT2", + ], + Number: [ + "MAX_VALUE", + "MIN_VALUE", + "NaN", + "NEGATIVE_INFINITY", + "POSITIVE_INFINITY", + ], + }; + convert_to_predicate(static_values); + def(AST_PropAccess, function(compressor){ + if (compressor.option("unsafe")) { + var key = this.property; + if (key instanceof AST_Node) { + key = ev(key, compressor); + if (key === this.property) return this; + } + var exp = this.expression; + var val; + if (is_undeclared_ref(exp)) { + if (!(static_values[exp.name] || return_false)(key)) return this; + val = global_objs[exp.name]; + } else { + val = ev(exp, compressor); + if (!val || val === exp || !HOP(val, key)) return this; + } + return val[key]; + } + return this; + }); + var object_fns = [ + "constructor", + "toString", + "valueOf", + ]; + var native_fns = { + Array: [ + "indexOf", + "join", + "lastIndexOf", + "slice", + ].concat(object_fns), + Boolean: object_fns, + Number: [ + "toExponential", + "toFixed", + "toPrecision", + ].concat(object_fns), + RegExp: [ + "test", + ].concat(object_fns), + String: [ + "charAt", + "charCodeAt", + "concat", + "indexOf", + "italics", + "lastIndexOf", + "match", + "replace", + "search", + "slice", + "split", + "substr", + "substring", + "trim", + ].concat(object_fns), + }; + convert_to_predicate(native_fns); + var static_fns = { + Array: [ + "isArray", + ], + Math: [ + "abs", + "acos", + "asin", + "atan", + "ceil", + "cos", + "exp", + "floor", + "log", + "round", + "sin", + "sqrt", + "tan", + "atan2", + "pow", + "max", + "min" + ], + Number: [ + "isFinite", + "isNaN", + ], + String: [ + "fromCharCode", + ], + }; + convert_to_predicate(static_fns); + def(AST_Call, function(compressor){ + var exp = this.expression; + if (compressor.option("unsafe") && exp instanceof AST_PropAccess) { + var key = exp.property; + if (key instanceof AST_Node) { + key = ev(key, compressor); + if (key === exp.property) return this; + } + var val; + var e = exp.expression; + if (is_undeclared_ref(e)) { + if (!(static_fns[e.name] || return_false)(key)) return this; + val = global_objs[e.name]; + } else { + val = ev(e, compressor); + if (val === e || !(val && native_fns[val.constructor.name] || return_false)(key)) return this; + } + var args = []; + for (var i = 0, len = this.args.length; i < len; i++) { + var arg = this.args[i]; + var value = ev(arg, compressor); + if (arg === value) return this; + args.push(value); + } + return val[key].apply(val, args); + } + return this; + }); + def(AST_New, return_this); + })(function(node, func){ + node.DEFMETHOD("_eval", func); + }); + + // method to negate an expression + (function(def){ + function basic_negation(exp) { + return make_node(AST_UnaryPrefix, exp, { + operator: "!", + expression: exp + }); + } + function best(orig, alt, first_in_statement) { + var negated = basic_negation(orig); + if (first_in_statement) { + var stat = make_node(AST_SimpleStatement, alt, { + body: alt + }); + return best_of_expression(negated, stat) === stat ? alt : negated; + } + return best_of_expression(negated, alt); + } + def(AST_Node, function(){ + return basic_negation(this); + }); + def(AST_Statement, function(){ + throw new Error("Cannot negate a statement"); + }); + def(AST_Function, function(){ + return basic_negation(this); + }); + def(AST_UnaryPrefix, function(){ + if (this.operator == "!") + return this.expression; + return basic_negation(this); + }); + def(AST_Sequence, function(compressor){ + var expressions = this.expressions.slice(); + expressions.push(expressions.pop().negate(compressor)); + return make_sequence(this, expressions); + }); + def(AST_Conditional, function(compressor, first_in_statement){ + var self = this.clone(); + self.consequent = self.consequent.negate(compressor); + self.alternative = self.alternative.negate(compressor); + return best(this, self, first_in_statement); + }); + def(AST_Binary, function(compressor, first_in_statement){ + var self = this.clone(), op = this.operator; + if (compressor.option("unsafe_comps")) { + switch (op) { + case "<=" : self.operator = ">" ; return self; + case "<" : self.operator = ">=" ; return self; + case ">=" : self.operator = "<" ; return self; + case ">" : self.operator = "<=" ; return self; + } + } + switch (op) { + case "==" : self.operator = "!="; return self; + case "!=" : self.operator = "=="; return self; + case "===": self.operator = "!=="; return self; + case "!==": self.operator = "==="; return self; + case "&&": + self.operator = "||"; + self.left = self.left.negate(compressor, first_in_statement); + self.right = self.right.negate(compressor); + return best(this, self, first_in_statement); + case "||": + self.operator = "&&"; + self.left = self.left.negate(compressor, first_in_statement); + self.right = self.right.negate(compressor); + return best(this, self, first_in_statement); + } + return basic_negation(this); + }); + })(function(node, func){ + node.DEFMETHOD("negate", function(compressor, first_in_statement){ + return func.call(this, compressor, first_in_statement); + }); + }); + + AST_Call.DEFMETHOD("has_pure_annotation", function(compressor) { + if (!compressor.option("side_effects")) return false; + if (this.pure !== undefined) return this.pure; + var pure = false; + var comments, last_comment; + if (this.start + && (comments = this.start.comments_before) + && comments.length + && /[@#]__PURE__/.test((last_comment = comments[comments.length - 1]).value)) { + pure = last_comment; + } + return this.pure = pure; + }); + + // determine if expression has side effects + (function(def){ + def(AST_Node, return_true); + + def(AST_EmptyStatement, return_false); + def(AST_Constant, return_false); + def(AST_This, return_false); + + def(AST_Call, function(compressor){ + if (!this.has_pure_annotation(compressor) && compressor.pure_funcs(this)) return true; + for (var i = this.args.length; --i >= 0;) { + if (this.args[i].has_side_effects(compressor)) + return true; + } + return false; + }); + + function any(list, compressor) { + for (var i = list.length; --i >= 0;) + if (list[i].has_side_effects(compressor)) + return true; + return false; + } + + def(AST_Block, function(compressor){ + return any(this.body, compressor); + }); + def(AST_Switch, function(compressor){ + return this.expression.has_side_effects(compressor) + || any(this.body, compressor); + }); + def(AST_Case, function(compressor){ + return this.expression.has_side_effects(compressor) + || any(this.body, compressor); + }); + def(AST_Try, function(compressor){ + return any(this.body, compressor) + || this.bcatch && this.bcatch.has_side_effects(compressor) + || this.bfinally && this.bfinally.has_side_effects(compressor); + }); + def(AST_If, function(compressor){ + return this.condition.has_side_effects(compressor) + || this.body && this.body.has_side_effects(compressor) + || this.alternative && this.alternative.has_side_effects(compressor); + }); + def(AST_LabeledStatement, function(compressor){ + return this.body.has_side_effects(compressor); + }); + def(AST_SimpleStatement, function(compressor){ + return this.body.has_side_effects(compressor); + }); + def(AST_Defun, return_true); + def(AST_Function, return_false); + def(AST_Binary, function(compressor){ + return this.left.has_side_effects(compressor) + || this.right.has_side_effects(compressor); + }); + def(AST_Assign, return_true); + def(AST_Conditional, function(compressor){ + return this.condition.has_side_effects(compressor) + || this.consequent.has_side_effects(compressor) + || this.alternative.has_side_effects(compressor); + }); + def(AST_Unary, function(compressor){ + return unary_side_effects(this.operator) + || this.expression.has_side_effects(compressor); + }); + def(AST_SymbolRef, function(compressor){ + return !this.is_declared(compressor); + }); + def(AST_SymbolDeclaration, return_false); + def(AST_Object, function(compressor){ + return any(this.properties, compressor); + }); + def(AST_ObjectProperty, function(compressor){ + return this.value.has_side_effects(compressor); + }); + def(AST_Array, function(compressor){ + return any(this.elements, compressor); + }); + def(AST_Dot, function(compressor){ + return this.expression.may_throw_on_access(compressor) + || this.expression.has_side_effects(compressor); + }); + def(AST_Sub, function(compressor){ + return this.expression.may_throw_on_access(compressor) + || this.expression.has_side_effects(compressor) + || this.property.has_side_effects(compressor); + }); + def(AST_Sequence, function(compressor){ + return this.expressions.some(function(expression, index) { + return expression.has_side_effects(compressor); + }); + }); + })(function(node, func){ + node.DEFMETHOD("has_side_effects", func); + }); + + // determine if expression is constant + (function(def){ + function all(list) { + for (var i = list.length; --i >= 0;) + if (!list[i].is_constant_expression()) + return false; + return true; + } + def(AST_Node, return_false); + def(AST_Constant, return_true); + def(AST_Unary, function(){ + return this.expression.is_constant_expression(); + }); + def(AST_Binary, function(){ + return this.left.is_constant_expression() && this.right.is_constant_expression(); + }); + def(AST_Array, function(){ + return all(this.elements); + }); + def(AST_Object, function(){ + return all(this.properties); + }); + def(AST_ObjectProperty, function(){ + return this.value.is_constant_expression(); + }); + })(function(node, func){ + node.DEFMETHOD("is_constant_expression", func); + }); + + // tell me if a statement aborts + function aborts(thing) { + return thing && thing.aborts(); + }; + (function(def){ + def(AST_Statement, return_null); + def(AST_Jump, return_this); + function block_aborts(){ + var n = this.body.length; + return n > 0 && aborts(this.body[n - 1]); + }; + def(AST_BlockStatement, block_aborts); + def(AST_SwitchBranch, block_aborts); + def(AST_If, function(){ + return this.alternative && aborts(this.body) && aborts(this.alternative) && this; + }); + })(function(node, func){ + node.DEFMETHOD("aborts", func); + }); + + /* -----[ optimizers ]----- */ + + OPT(AST_Directive, function(self, compressor){ + if (compressor.has_directive(self.value) !== self) { + return make_node(AST_EmptyStatement, self); + } + return self; + }); + + OPT(AST_Debugger, function(self, compressor){ + if (compressor.option("drop_debugger")) + return make_node(AST_EmptyStatement, self); + return self; + }); + + OPT(AST_LabeledStatement, function(self, compressor){ + if (self.body instanceof AST_Break + && compressor.loopcontrol_target(self.body) === self.body) { + return make_node(AST_EmptyStatement, self); + } + return self.label.references.length == 0 ? self.body : self; + }); + + OPT(AST_Block, function(self, compressor){ + tighten_body(self.body, compressor); + return self; + }); + + OPT(AST_BlockStatement, function(self, compressor){ + tighten_body(self.body, compressor); + switch (self.body.length) { + case 1: return self.body[0]; + case 0: return make_node(AST_EmptyStatement, self); + } + return self; + }); + + AST_Scope.DEFMETHOD("drop_unused", function(compressor){ + if (!compressor.option("unused")) return; + if (compressor.has_directive("use asm")) return; + var self = this; + if (self.uses_eval || self.uses_with) return; + var drop_funcs = !(self instanceof AST_Toplevel) || compressor.toplevel.funcs; + var drop_vars = !(self instanceof AST_Toplevel) || compressor.toplevel.vars; + if (!drop_funcs && !drop_vars) return; + var assign_as_unused = /keep_assign/.test(compressor.option("unused")) ? return_false : function(node) { + if (node instanceof AST_Assign && (node.write_only || node.operator == "=")) { + return node.left; + } + if (node instanceof AST_Unary && node.write_only) return node.expression; + }; + var in_use = []; + var in_use_ids = Object.create(null); // avoid expensive linear scans of in_use + if (self instanceof AST_Toplevel && compressor.top_retain) { + self.variables.each(function(def) { + if (compressor.top_retain(def) && !(def.id in in_use_ids)) { + in_use_ids[def.id] = true; + in_use.push(def); + } + }); + } + var var_defs_by_id = new Dictionary(); + var initializations = new Dictionary(); + // pass 1: find out which symbols are directly used in + // this scope (not in nested scopes). + var scope = this; + var tw = new TreeWalker(function(node, descend){ + if (node !== self) { + if (node instanceof AST_Defun) { + if (!drop_funcs && scope === self) { + var node_def = node.name.definition(); + if (!(node_def.id in in_use_ids)) { + in_use_ids[node_def.id] = true; + in_use.push(node_def); + } + } + initializations.add(node.name.name, node); + return true; // don't go in nested scopes + } + if (node instanceof AST_Definitions && scope === self) { + node.definitions.forEach(function(def){ + var node_def = def.name.definition(); + if (def.name instanceof AST_SymbolVar) { + var_defs_by_id.add(node_def.id, def); + } + if (!drop_vars) { + if (!(node_def.id in in_use_ids)) { + in_use_ids[node_def.id] = true; + in_use.push(node_def); + } + } + if (def.value) { + initializations.add(def.name.name, def.value); + if (def.value.has_side_effects(compressor)) { + def.value.walk(tw); + } + } + }); + return true; + } + if (assign_as_unused(node) instanceof AST_SymbolRef && scope === self) { + if (node instanceof AST_Assign) node.right.walk(tw); + return true; + } + if (node instanceof AST_SymbolRef) { + var node_def = node.definition(); + if (!(node_def.id in in_use_ids)) { + in_use_ids[node_def.id] = true; + in_use.push(node_def); + } + return true; + } + if (node instanceof AST_Scope) { + var save_scope = scope; + scope = node; + descend(); + scope = save_scope; + return true; + } + } + }); + self.walk(tw); + // pass 2: for every used symbol we need to walk its + // initialization code to figure out if it uses other + // symbols (that may not be in_use). + for (var i = 0; i < in_use.length; ++i) { + in_use[i].orig.forEach(function(decl){ + // undeclared globals will be instanceof AST_SymbolRef + var init = initializations.get(decl.name); + if (init) init.forEach(function(init){ + var tw = new TreeWalker(function(node){ + if (node instanceof AST_SymbolRef) { + var node_def = node.definition(); + if (!(node_def.id in in_use_ids)) { + in_use_ids[node_def.id] = true; + in_use.push(node_def); + } + } + }); + init.walk(tw); + }); + }); + } + // pass 3: we should drop declarations not in_use + var tt = new TreeTransformer( + function before(node, descend, in_list) { + if (node instanceof AST_Function + && node.name + && !compressor.option("keep_fnames")) { + var def = node.name.definition(); + // any declarations with same name will overshadow + // name of this anonymous function and can therefore + // never be used anywhere + if (!(def.id in in_use_ids) || def.orig.length > 1) + node.name = null; + } + if (node instanceof AST_Lambda && !(node instanceof AST_Accessor)) { + var trim = !compressor.option("keep_fargs"); + for (var a = node.argnames, i = a.length; --i >= 0;) { + var sym = a[i]; + if (!(sym.definition().id in in_use_ids)) { + sym.__unused = true; + if (trim) { + a.pop(); + compressor[sym.unreferenced() ? "warn" : "info"]("Dropping unused function argument {name} [{file}:{line},{col}]", template(sym)); + } + } + else { + trim = false; + } + } + } + if (drop_funcs && node instanceof AST_Defun && node !== self) { + if (!(node.name.definition().id in in_use_ids)) { + compressor[node.name.unreferenced() ? "warn" : "info"]("Dropping unused function {name} [{file}:{line},{col}]", template(node.name)); + return make_node(AST_EmptyStatement, node); + } + return node; + } + if (drop_vars && node instanceof AST_Definitions && !(tt.parent() instanceof AST_ForIn && tt.parent().init === node)) { + // place uninitialized names at the start + var body = [], head = [], tail = []; + // for unused names whose initialization has + // side effects, we can cascade the init. code + // into the next one, or next statement. + var side_effects = []; + node.definitions.forEach(function(def) { + if (def.value) def.value = def.value.transform(tt); + var sym = def.name.definition(); + if (sym.id in in_use_ids) { + if (def.name instanceof AST_SymbolVar) { + var var_defs = var_defs_by_id.get(sym.id); + if (var_defs.length > 1 && !def.value) { + compressor.warn("Dropping duplicated definition of variable {name} [{file}:{line},{col}]", template(def.name)); + remove(var_defs, def); + remove(sym.orig, def.name); + return; + } + } + if (def.value) { + if (side_effects.length > 0) { + if (tail.length > 0) { + merge_sequence(side_effects, def.value); + def.value = make_sequence(def.value, side_effects); + } else { + body.push(make_node(AST_SimpleStatement, node, { + body: make_sequence(node, side_effects) + })); + } + side_effects = []; + } + tail.push(def); + } else { + head.push(def); + } + } else if (sym.orig[0] instanceof AST_SymbolCatch) { + var value = def.value && def.value.drop_side_effect_free(compressor); + if (value) merge_sequence(side_effects, value); + def.value = null; + head.push(def); + } else { + var value = def.value && def.value.drop_side_effect_free(compressor); + if (value) { + compressor.warn("Side effects in initialization of unused variable {name} [{file}:{line},{col}]", template(def.name)); + merge_sequence(side_effects, value); + } else { + compressor[def.name.unreferenced() ? "warn" : "info"]("Dropping unused variable {name} [{file}:{line},{col}]", template(def.name)); + } + remove(sym.orig, def.name); + } + }); + if (head.length == 0 && tail.length == 1 && tail[0].name instanceof AST_SymbolVar) { + var var_defs = var_defs_by_id.get(tail[0].name.definition().id); + if (var_defs.length > 1) { + var def = tail.pop(); + compressor.warn("Converting duplicated definition of variable {name} to assignment [{file}:{line},{col}]", template(def.name)); + remove(var_defs, def); + remove(def.name.definition().orig, def.name); + side_effects.unshift(make_node(AST_Assign, def, { + operator: "=", + left: make_node(AST_SymbolRef, def.name, def.name), + right: def.value + })); + } + } + if (head.length > 0 || tail.length > 0) { + node.definitions = head.concat(tail); + body.push(node); + } + if (side_effects.length > 0) { + body.push(make_node(AST_SimpleStatement, node, { + body: make_sequence(node, side_effects) + })); + } + switch (body.length) { + case 0: + return in_list ? MAP.skip : make_node(AST_EmptyStatement, node); + case 1: + return body[0]; + default: + return in_list ? MAP.splice(body) : make_node(AST_BlockStatement, node, { + body: body + }); + } + } + if (drop_vars) { + var def = assign_as_unused(node); + if (def instanceof AST_SymbolRef + && !((def = def.definition()).id in in_use_ids) + && self.variables.get(def.name) === def) { + if (node instanceof AST_Assign) { + return maintain_this_binding(tt.parent(), node, node.right.transform(tt)); + } + return make_node(AST_Number, node, { + value: 0 + }); + } + } + // certain combination of unused name + side effect leads to: + // https://github.com/mishoo/UglifyJS2/issues/44 + // https://github.com/mishoo/UglifyJS2/issues/1830 + // https://github.com/mishoo/UglifyJS2/issues/1838 + // that's an invalid AST. + // We fix it at this stage by moving the `var` outside the `for`. + if (node instanceof AST_For) { + descend(node, this); + if (node.init instanceof AST_BlockStatement) { + var block = node.init; + node.init = block.body.pop(); + block.body.push(node); + return in_list ? MAP.splice(block.body) : block; + } else if (node.init instanceof AST_SimpleStatement) { + node.init = node.init.body; + } else if (is_empty(node.init)) { + node.init = null; + } + return node; + } + if (node instanceof AST_LabeledStatement && node.body instanceof AST_For) { + descend(node, this); + if (node.body instanceof AST_BlockStatement) { + var block = node.body; + node.body = block.body.pop(); + block.body.push(node); + return in_list ? MAP.splice(block.body) : block; + } + return node; + } + if (node instanceof AST_Scope && node !== self) + return node; + + function template(sym) { + return { + name : sym.name, + file : sym.start.file, + line : sym.start.line, + col : sym.start.col + }; + } + } + ); + self.transform(tt); + }); + + AST_Scope.DEFMETHOD("hoist_declarations", function(compressor){ + var self = this; + if (compressor.has_directive("use asm")) return self; + var hoist_funs = compressor.option("hoist_funs"); + var hoist_vars = compressor.option("hoist_vars"); + if (hoist_funs || hoist_vars) { + var dirs = []; + var hoisted = []; + var vars = new Dictionary(), vars_found = 0, var_decl = 0; + // let's count var_decl first, we seem to waste a lot of + // space if we hoist `var` when there's only one. + self.walk(new TreeWalker(function(node){ + if (node instanceof AST_Scope && node !== self) + return true; + if (node instanceof AST_Var) { + ++var_decl; + return true; + } + })); + hoist_vars = hoist_vars && var_decl > 1; + var tt = new TreeTransformer( + function before(node) { + if (node !== self) { + if (node instanceof AST_Directive) { + dirs.push(node); + return make_node(AST_EmptyStatement, node); + } + if (hoist_funs && node instanceof AST_Defun + && (tt.parent() === self || !compressor.has_directive("use strict"))) { + hoisted.push(node); + return make_node(AST_EmptyStatement, node); + } + if (hoist_vars && node instanceof AST_Var) { + node.definitions.forEach(function(def){ + vars.set(def.name.name, def); + ++vars_found; + }); + var seq = node.to_assignments(compressor); + var p = tt.parent(); + if (p instanceof AST_ForIn && p.init === node) { + if (seq == null) { + var def = node.definitions[0].name; + return make_node(AST_SymbolRef, def, def); + } + return seq; + } + if (p instanceof AST_For && p.init === node) { + return seq; + } + if (!seq) return make_node(AST_EmptyStatement, node); + return make_node(AST_SimpleStatement, node, { + body: seq + }); + } + if (node instanceof AST_Scope) + return node; // to avoid descending in nested scopes + } + } + ); + self = self.transform(tt); + if (vars_found > 0) { + // collect only vars which don't show up in self's arguments list + var defs = []; + vars.each(function(def, name){ + if (self instanceof AST_Lambda + && find_if(function(x){ return x.name == def.name.name }, + self.argnames)) { + vars.del(name); + } else { + def = def.clone(); + def.value = null; + defs.push(def); + vars.set(name, def); + } + }); + if (defs.length > 0) { + // try to merge in assignments + for (var i = 0; i < self.body.length;) { + if (self.body[i] instanceof AST_SimpleStatement) { + var expr = self.body[i].body, sym, assign; + if (expr instanceof AST_Assign + && expr.operator == "=" + && (sym = expr.left) instanceof AST_Symbol + && vars.has(sym.name)) + { + var def = vars.get(sym.name); + if (def.value) break; + def.value = expr.right; + remove(defs, def); + defs.push(def); + self.body.splice(i, 1); + continue; + } + if (expr instanceof AST_Sequence + && (assign = expr.expressions[0]) instanceof AST_Assign + && assign.operator == "=" + && (sym = assign.left) instanceof AST_Symbol + && vars.has(sym.name)) + { + var def = vars.get(sym.name); + if (def.value) break; + def.value = assign.right; + remove(defs, def); + defs.push(def); + self.body[i].body = make_sequence(expr, expr.expressions.slice(1)); + continue; + } + } + if (self.body[i] instanceof AST_EmptyStatement) { + self.body.splice(i, 1); + continue; + } + if (self.body[i] instanceof AST_BlockStatement) { + var tmp = [ i, 1 ].concat(self.body[i].body); + self.body.splice.apply(self.body, tmp); + continue; + } + break; + } + defs = make_node(AST_Var, self, { + definitions: defs + }); + hoisted.push(defs); + }; + } + self.body = dirs.concat(hoisted, self.body); + } + return self; + }); + + // drop_side_effect_free() + // remove side-effect-free parts which only affects return value + (function(def){ + // Drop side-effect-free elements from an array of expressions. + // Returns an array of expressions with side-effects or null + // if all elements were dropped. Note: original array may be + // returned if nothing changed. + function trim(nodes, compressor, first_in_statement) { + var len = nodes.length; + if (!len) return null; + var ret = [], changed = false; + for (var i = 0; i < len; i++) { + var node = nodes[i].drop_side_effect_free(compressor, first_in_statement); + changed |= node !== nodes[i]; + if (node) { + merge_sequence(ret, node); + first_in_statement = false; + } + } + return changed ? ret.length ? ret : null : nodes; + } + + def(AST_Node, return_this); + def(AST_Constant, return_null); + def(AST_This, return_null); + def(AST_Call, function(compressor, first_in_statement){ + if (!this.has_pure_annotation(compressor) && compressor.pure_funcs(this)) { + if (this.expression instanceof AST_Function + && (!this.expression.name || !this.expression.name.definition().references.length)) { + var node = this.clone(); + node.expression.process_expression(false, compressor); + return node; + } + return this; + } + if (this.pure) { + compressor.warn("Dropping __PURE__ call [{file}:{line},{col}]", this.start); + this.pure.value = this.pure.value.replace(/[@#]__PURE__/g, ' '); + } + var args = trim(this.args, compressor, first_in_statement); + return args && make_sequence(this, args); + }); + def(AST_Accessor, return_null); + def(AST_Function, return_null); + def(AST_Binary, function(compressor, first_in_statement){ + var right = this.right.drop_side_effect_free(compressor); + if (!right) return this.left.drop_side_effect_free(compressor, first_in_statement); + switch (this.operator) { + case "&&": + case "||": + if (right === this.right) return this; + var node = this.clone(); + node.right = right; + return node; + default: + var left = this.left.drop_side_effect_free(compressor, first_in_statement); + if (!left) return this.right.drop_side_effect_free(compressor, first_in_statement); + return make_sequence(this, [ left, right ]); + } + }); + def(AST_Assign, function(compressor){ + this.write_only = !this.left.has_side_effects(compressor); + return this; + }); + def(AST_Conditional, function(compressor){ + var consequent = this.consequent.drop_side_effect_free(compressor); + var alternative = this.alternative.drop_side_effect_free(compressor); + if (consequent === this.consequent && alternative === this.alternative) return this; + if (!consequent) return alternative ? make_node(AST_Binary, this, { + operator: "||", + left: this.condition, + right: alternative + }) : this.condition.drop_side_effect_free(compressor); + if (!alternative) return make_node(AST_Binary, this, { + operator: "&&", + left: this.condition, + right: consequent + }); + var node = this.clone(); + node.consequent = consequent; + node.alternative = alternative; + return node; + }); + def(AST_Unary, function(compressor, first_in_statement){ + if (unary_side_effects(this.operator)) { + this.write_only = !this.expression.has_side_effects(compressor); + return this; + } + if (this.operator == "typeof" && this.expression instanceof AST_SymbolRef) return null; + var expression = this.expression.drop_side_effect_free(compressor, first_in_statement); + if (first_in_statement + && this instanceof AST_UnaryPrefix + && is_iife_call(expression)) { + if (expression === this.expression && this.operator.length === 1) return this; + return make_node(AST_UnaryPrefix, this, { + operator: this.operator.length === 1 ? this.operator : "!", + expression: expression + }); + } + return expression; + }); + def(AST_SymbolRef, function(compressor) { + return this.is_declared(compressor) ? null : this; + }); + def(AST_Object, function(compressor, first_in_statement){ + var values = trim(this.properties, compressor, first_in_statement); + return values && make_sequence(this, values); + }); + def(AST_ObjectProperty, function(compressor, first_in_statement){ + return this.value.drop_side_effect_free(compressor, first_in_statement); + }); + def(AST_Array, function(compressor, first_in_statement){ + var values = trim(this.elements, compressor, first_in_statement); + return values && make_sequence(this, values); + }); + def(AST_Dot, function(compressor, first_in_statement){ + if (this.expression.may_throw_on_access(compressor)) return this; + return this.expression.drop_side_effect_free(compressor, first_in_statement); + }); + def(AST_Sub, function(compressor, first_in_statement){ + if (this.expression.may_throw_on_access(compressor)) return this; + var expression = this.expression.drop_side_effect_free(compressor, first_in_statement); + if (!expression) return this.property.drop_side_effect_free(compressor, first_in_statement); + var property = this.property.drop_side_effect_free(compressor); + if (!property) return expression; + return make_sequence(this, [ expression, property ]); + }); + def(AST_Sequence, function(compressor){ + var last = this.expressions[this.expressions.length - 1]; + var expr = last.drop_side_effect_free(compressor); + if (expr === last) return this; + var expressions = this.expressions.slice(0, -1); + if (expr) merge_sequence(expressions, expr); + return make_sequence(this, expressions); + }); + })(function(node, func){ + node.DEFMETHOD("drop_side_effect_free", func); + }); + + OPT(AST_SimpleStatement, function(self, compressor){ + if (compressor.option("side_effects")) { + var body = self.body; + var node = body.drop_side_effect_free(compressor, true); + if (!node) { + compressor.warn("Dropping side-effect-free statement [{file}:{line},{col}]", self.start); + return make_node(AST_EmptyStatement, self); + } + if (node !== body) { + return make_node(AST_SimpleStatement, self, { body: node }); + } + } + return self; + }); + + OPT(AST_DWLoop, function(self, compressor){ + if (!compressor.option("loops")) return self; + var cond = self.condition.evaluate(compressor); + if (cond !== self.condition) { + if (cond) { + return make_node(AST_For, self, { + body: self.body + }); + } + if (compressor.option("dead_code") && self instanceof AST_While) { + var a = []; + extract_declarations_from_unreachable_code(compressor, self.body, a); + return make_node(AST_BlockStatement, self, { body: a }).optimize(compressor); + } + if (self instanceof AST_Do) { + var has_loop_control = false; + var tw = new TreeWalker(function(node) { + if (node instanceof AST_Scope || has_loop_control) return true; + if (node instanceof AST_LoopControl && tw.loopcontrol_target(node) === self) + return has_loop_control = true; + }); + var parent = compressor.parent(); + (parent instanceof AST_LabeledStatement ? parent : self).walk(tw); + if (!has_loop_control) return self.body; + } + } + if (self instanceof AST_While) { + return make_node(AST_For, self, self).optimize(compressor); + } + return self; + }); + + function if_break_in_loop(self, compressor) { + function drop_it(rest) { + rest = as_statement_array(rest); + if (self.body instanceof AST_BlockStatement) { + self.body = self.body.clone(); + self.body.body = rest.concat(self.body.body.slice(1)); + self.body = self.body.transform(compressor); + } else { + self.body = make_node(AST_BlockStatement, self.body, { + body: rest + }).transform(compressor); + } + if_break_in_loop(self, compressor); + } + var first = self.body instanceof AST_BlockStatement ? self.body.body[0] : self.body; + if (first instanceof AST_If) { + if (first.body instanceof AST_Break + && compressor.loopcontrol_target(first.body) === compressor.self()) { + if (self.condition) { + self.condition = make_node(AST_Binary, self.condition, { + left: self.condition, + operator: "&&", + right: first.condition.negate(compressor), + }); + } else { + self.condition = first.condition.negate(compressor); + } + drop_it(first.alternative); + } + else if (first.alternative instanceof AST_Break + && compressor.loopcontrol_target(first.alternative) === compressor.self()) { + if (self.condition) { + self.condition = make_node(AST_Binary, self.condition, { + left: self.condition, + operator: "&&", + right: first.condition, + }); + } else { + self.condition = first.condition; + } + drop_it(first.body); + } + } + }; + + OPT(AST_For, function(self, compressor){ + if (!compressor.option("loops")) return self; + if (self.condition) { + var cond = self.condition.evaluate(compressor); + if (compressor.option("dead_code") && !cond) { + var a = []; + if (self.init instanceof AST_Statement) { + a.push(self.init); + } + else if (self.init) { + a.push(make_node(AST_SimpleStatement, self.init, { + body: self.init + })); + } + extract_declarations_from_unreachable_code(compressor, self.body, a); + return make_node(AST_BlockStatement, self, { body: a }).optimize(compressor); + } + if (cond !== self.condition) { + cond = make_node_from_constant(cond, self.condition).transform(compressor); + self.condition = best_of_expression(cond, self.condition); + } + } + if_break_in_loop(self, compressor); + return self; + }); + + OPT(AST_If, function(self, compressor){ + if (is_empty(self.alternative)) self.alternative = null; + + if (!compressor.option("conditionals")) return self; + // if condition can be statically determined, warn and drop + // one of the blocks. note, statically determined implies + // “has no side effects”; also it doesn't work for cases like + // `x && true`, though it probably should. + var cond = self.condition.evaluate(compressor); + if (cond !== self.condition) { + if (cond) { + compressor.warn("Condition always true [{file}:{line},{col}]", self.condition.start); + if (compressor.option("dead_code")) { + var a = []; + if (self.alternative) { + extract_declarations_from_unreachable_code(compressor, self.alternative, a); + } + a.push(self.body); + return make_node(AST_BlockStatement, self, { body: a }).optimize(compressor); + } + } else { + compressor.warn("Condition always false [{file}:{line},{col}]", self.condition.start); + if (compressor.option("dead_code")) { + var a = []; + extract_declarations_from_unreachable_code(compressor, self.body, a); + if (self.alternative) a.push(self.alternative); + return make_node(AST_BlockStatement, self, { body: a }).optimize(compressor); + } + } + cond = make_node_from_constant(cond, self.condition).transform(compressor); + self.condition = best_of_expression(cond, self.condition); + } + var negated = self.condition.negate(compressor); + var self_condition_length = self.condition.print_to_string().length; + var negated_length = negated.print_to_string().length; + var negated_is_best = negated_length < self_condition_length; + if (self.alternative && negated_is_best) { + negated_is_best = false; // because we already do the switch here. + // no need to swap values of self_condition_length and negated_length + // here because they are only used in an equality comparison later on. + self.condition = negated; + var tmp = self.body; + self.body = self.alternative || make_node(AST_EmptyStatement, self); + self.alternative = tmp; + } + if (is_empty(self.body) && is_empty(self.alternative)) { + return make_node(AST_SimpleStatement, self.condition, { + body: self.condition.clone() + }).optimize(compressor); + } + if (self.body instanceof AST_SimpleStatement + && self.alternative instanceof AST_SimpleStatement) { + return make_node(AST_SimpleStatement, self, { + body: make_node(AST_Conditional, self, { + condition : self.condition, + consequent : self.body.body, + alternative : self.alternative.body + }) + }).optimize(compressor); + } + if (is_empty(self.alternative) && self.body instanceof AST_SimpleStatement) { + if (self_condition_length === negated_length && !negated_is_best + && self.condition instanceof AST_Binary && self.condition.operator == "||") { + // although the code length of self.condition and negated are the same, + // negated does not require additional surrounding parentheses. + // see https://github.com/mishoo/UglifyJS2/issues/979 + negated_is_best = true; + } + if (negated_is_best) return make_node(AST_SimpleStatement, self, { + body: make_node(AST_Binary, self, { + operator : "||", + left : negated, + right : self.body.body + }) + }).optimize(compressor); + return make_node(AST_SimpleStatement, self, { + body: make_node(AST_Binary, self, { + operator : "&&", + left : self.condition, + right : self.body.body + }) + }).optimize(compressor); + } + if (self.body instanceof AST_EmptyStatement + && self.alternative instanceof AST_SimpleStatement) { + return make_node(AST_SimpleStatement, self, { + body: make_node(AST_Binary, self, { + operator : "||", + left : self.condition, + right : self.alternative.body + }) + }).optimize(compressor); + } + if (self.body instanceof AST_Exit + && self.alternative instanceof AST_Exit + && self.body.TYPE == self.alternative.TYPE) { + return make_node(self.body.CTOR, self, { + value: make_node(AST_Conditional, self, { + condition : self.condition, + consequent : self.body.value || make_node(AST_Undefined, self.body), + alternative : self.alternative.value || make_node(AST_Undefined, self.alternative) + }).transform(compressor) + }).optimize(compressor); + } + if (self.body instanceof AST_If + && !self.body.alternative + && !self.alternative) { + self = make_node(AST_If, self, { + condition: make_node(AST_Binary, self.condition, { + operator: "&&", + left: self.condition, + right: self.body.condition + }), + body: self.body.body, + alternative: null + }); + } + if (aborts(self.body)) { + if (self.alternative) { + var alt = self.alternative; + self.alternative = null; + return make_node(AST_BlockStatement, self, { + body: [ self, alt ] + }).optimize(compressor); + } + } + if (aborts(self.alternative)) { + var body = self.body; + self.body = self.alternative; + self.condition = negated_is_best ? negated : self.condition.negate(compressor); + self.alternative = null; + return make_node(AST_BlockStatement, self, { + body: [ self, body ] + }).optimize(compressor); + } + return self; + }); + + OPT(AST_Switch, function(self, compressor){ + if (!compressor.option("switches")) return self; + var branch; + var value = self.expression.evaluate(compressor); + if (value !== self.expression) { + var expression = make_node_from_constant(value, self.expression).transform(compressor); + self.expression = best_of_expression(expression, self.expression); + } + if (!compressor.option("dead_code")) return self; + var decl = []; + var body = []; + var default_branch; + var exact_match; + for (var i = 0, len = self.body.length; i < len && !exact_match; i++) { + branch = self.body[i]; + if (branch instanceof AST_Default) { + if (!default_branch) { + default_branch = branch; + } else { + eliminate_branch(branch, body[body.length - 1]); + } + } else if (value !== self.expression) { + var exp = branch.expression.evaluate(compressor); + if (exp === value) { + exact_match = branch; + if (default_branch) { + var default_index = body.indexOf(default_branch); + body.splice(default_index, 1); + eliminate_branch(default_branch, body[default_index - 1]); + default_branch = null; + } + } else if (exp !== branch.expression) { + eliminate_branch(branch, body[body.length - 1]); + continue; + } + } + if (aborts(branch)) { + var prev = body[body.length - 1]; + if (aborts(prev) && prev.body.length == branch.body.length + && make_node(AST_BlockStatement, prev, prev).equivalent_to(make_node(AST_BlockStatement, branch, branch))) { + prev.body = []; + } + } + body.push(branch); + } + while (i < len) eliminate_branch(self.body[i++], body[body.length - 1]); + if (body.length > 0) { + body[0].body = decl.concat(body[0].body); + } + self.body = body; + while (branch = body[body.length - 1]) { + var stat = branch.body[branch.body.length - 1]; + if (stat instanceof AST_Break && compressor.loopcontrol_target(stat) === self) + branch.body.pop(); + if (branch.body.length || branch instanceof AST_Case + && (default_branch || branch.expression.has_side_effects(compressor))) break; + if (body.pop() === default_branch) default_branch = null; + } + if (body.length == 0) { + return make_node(AST_BlockStatement, self, { + body: decl.concat(make_node(AST_SimpleStatement, self.expression, { + body: self.expression + })) + }).optimize(compressor); + } + if (body.length == 1 && (body[0] === exact_match || body[0] === default_branch)) { + var has_break = false; + var tw = new TreeWalker(function(node) { + if (has_break + || node instanceof AST_Lambda + || node instanceof AST_SimpleStatement) return true; + if (node instanceof AST_Break && tw.loopcontrol_target(node) === self) + has_break = true; + }); + self.walk(tw); + if (!has_break) { + body = body[0].body.slice(); + body.unshift(make_node(AST_SimpleStatement, self.expression, { + body: self.expression + })); + return make_node(AST_BlockStatement, self, { + body: body + }).optimize(compressor); + } + } + return self; + + function eliminate_branch(branch, prev) { + if (prev && !aborts(prev)) { + prev.body = prev.body.concat(branch.body); + } else { + extract_declarations_from_unreachable_code(compressor, branch, decl); + } + } + }); + + OPT(AST_Try, function(self, compressor){ + tighten_body(self.body, compressor); + if (self.bcatch && self.bfinally && all(self.bfinally.body, is_empty)) self.bfinally = null; + if (all(self.body, is_empty)) { + var body = []; + if (self.bcatch) extract_declarations_from_unreachable_code(compressor, self.bcatch, body); + if (self.bfinally) body = body.concat(self.bfinally.body); + return make_node(AST_BlockStatement, self, { + body: body + }).optimize(compressor); + } + return self; + }); + + AST_Definitions.DEFMETHOD("remove_initializers", function(){ + this.definitions.forEach(function(def){ def.value = null }); + }); + + AST_Definitions.DEFMETHOD("to_assignments", function(compressor){ + var reduce_vars = compressor.option("reduce_vars"); + var assignments = this.definitions.reduce(function(a, def){ + if (def.value) { + var name = make_node(AST_SymbolRef, def.name, def.name); + a.push(make_node(AST_Assign, def, { + operator : "=", + left : name, + right : def.value + })); + if (reduce_vars) name.definition().fixed = false; + } + return a; + }, []); + if (assignments.length == 0) return null; + return make_sequence(this, assignments); + }); + + OPT(AST_Definitions, function(self, compressor){ + if (self.definitions.length == 0) + return make_node(AST_EmptyStatement, self); + return self; + }); + + OPT(AST_Call, function(self, compressor){ + var exp = self.expression; + var fn = exp; + if (compressor.option("unused") + && (fn instanceof AST_Function + || compressor.option("reduce_vars") + && fn instanceof AST_SymbolRef + && (fn = fn.fixed_value()) instanceof AST_Function) + && !fn.uses_arguments + && !fn.uses_eval) { + var pos = 0, last = 0; + for (var i = 0, len = self.args.length; i < len; i++) { + var trim = i >= fn.argnames.length; + if (trim || fn.argnames[i].__unused) { + var node = self.args[i].drop_side_effect_free(compressor); + if (node) { + self.args[pos++] = node; + } else if (!trim) { + self.args[pos++] = make_node(AST_Number, self.args[i], { + value: 0 + }); + continue; + } + } else { + self.args[pos++] = self.args[i]; + } + last = pos; + } + self.args.length = last; + } + if (compressor.option("unsafe")) { + if (is_undeclared_ref(exp)) { + switch (exp.name) { + case "Array": + if (self.args.length != 1) { + return make_node(AST_Array, self, { + elements: self.args + }).optimize(compressor); + } + break; + case "Object": + if (self.args.length == 0) { + return make_node(AST_Object, self, { + properties: [] + }); + } + break; + case "String": + if (self.args.length == 0) return make_node(AST_String, self, { + value: "" + }); + if (self.args.length <= 1) return make_node(AST_Binary, self, { + left: self.args[0], + operator: "+", + right: make_node(AST_String, self, { value: "" }) + }).optimize(compressor); + break; + case "Number": + if (self.args.length == 0) return make_node(AST_Number, self, { + value: 0 + }); + if (self.args.length == 1) return make_node(AST_UnaryPrefix, self, { + expression: self.args[0], + operator: "+" + }).optimize(compressor); + case "Boolean": + if (self.args.length == 0) return make_node(AST_False, self); + if (self.args.length == 1) return make_node(AST_UnaryPrefix, self, { + expression: make_node(AST_UnaryPrefix, self, { + expression: self.args[0], + operator: "!" + }), + operator: "!" + }).optimize(compressor); + break; + } + } + else if (exp instanceof AST_Dot && exp.property == "toString" && self.args.length == 0) { + return make_node(AST_Binary, self, { + left: make_node(AST_String, self, { value: "" }), + operator: "+", + right: exp.expression + }).optimize(compressor); + } + else if (exp instanceof AST_Dot && exp.expression instanceof AST_Array && exp.property == "join") EXIT: { + var separator; + if (self.args.length > 0) { + separator = self.args[0].evaluate(compressor); + if (separator === self.args[0]) break EXIT; // not a constant + } + var elements = []; + var consts = []; + exp.expression.elements.forEach(function(el) { + var value = el.evaluate(compressor); + if (value !== el) { + consts.push(value); + } else { + if (consts.length > 0) { + elements.push(make_node(AST_String, self, { + value: consts.join(separator) + })); + consts.length = 0; + } + elements.push(el); + } + }); + if (consts.length > 0) { + elements.push(make_node(AST_String, self, { + value: consts.join(separator) + })); + } + if (elements.length == 0) return make_node(AST_String, self, { value: "" }); + if (elements.length == 1) { + if (elements[0].is_string(compressor)) { + return elements[0]; + } + return make_node(AST_Binary, elements[0], { + operator : "+", + left : make_node(AST_String, self, { value: "" }), + right : elements[0] + }); + } + if (separator == "") { + var first; + if (elements[0].is_string(compressor) + || elements[1].is_string(compressor)) { + first = elements.shift(); + } else { + first = make_node(AST_String, self, { value: "" }); + } + return elements.reduce(function(prev, el){ + return make_node(AST_Binary, el, { + operator : "+", + left : prev, + right : el + }); + }, first).optimize(compressor); + } + // need this awkward cloning to not affect original element + // best_of will decide which one to get through. + var node = self.clone(); + node.expression = node.expression.clone(); + node.expression.expression = node.expression.expression.clone(); + node.expression.expression.elements = elements; + return best_of(compressor, self, node); + } + else if (exp instanceof AST_Dot && exp.expression.is_string(compressor) && exp.property == "charAt") { + var arg = self.args[0]; + var index = arg ? arg.evaluate(compressor) : 0; + if (index !== arg) { + return make_node(AST_Sub, exp, { + expression: exp.expression, + property: make_node_from_constant(index | 0, arg || exp) + }).optimize(compressor); + } + } + } + if (compressor.option("unsafe_Func") + && is_undeclared_ref(exp) + && exp.name == "Function") { + // new Function() => function(){} + if (self.args.length == 0) return make_node(AST_Function, self, { + argnames: [], + body: [] + }); + if (all(self.args, function(x) { + return x instanceof AST_String; + })) { + // quite a corner-case, but we can handle it: + // https://github.com/mishoo/UglifyJS2/issues/203 + // if the code argument is a constant, then we can minify it. + try { + var code = "n(function(" + self.args.slice(0, -1).map(function(arg) { + return arg.value; + }).join(",") + "){" + self.args[self.args.length - 1].value + "})"; + var ast = parse(code); + var mangle = { ie8: compressor.option("ie8") }; + ast.figure_out_scope(mangle); + var comp = new Compressor(compressor.options); + ast = ast.transform(comp); + ast.figure_out_scope(mangle); + base54.reset(); + ast.compute_char_frequency(mangle); + ast.mangle_names(mangle); + var fun; + ast.walk(new TreeWalker(function(node) { + if (fun) return true; + if (node instanceof AST_Lambda) { + fun = node; + return true; + } + })); + var code = OutputStream(); + AST_BlockStatement.prototype._codegen.call(fun, fun, code); + self.args = [ + make_node(AST_String, self, { + value: fun.argnames.map(function(arg) { + return arg.print_to_string(); + }).join(",") + }), + make_node(AST_String, self.args[self.args.length - 1], { + value: code.get().replace(/^\{|\}$/g, "") + }) + ]; + return self; + } catch (ex) { + if (ex instanceof JS_Parse_Error) { + compressor.warn("Error parsing code passed to new Function [{file}:{line},{col}]", self.args[self.args.length - 1].start); + compressor.warn(ex.toString()); + } else { + throw ex; + } + } + } + } + var stat = fn instanceof AST_Function && fn.body[0]; + if (compressor.option("inline") && stat instanceof AST_Return) { + var value = stat.value; + if (!value || value.is_constant_expression()) { + var args = self.args.concat(value || make_node(AST_Undefined, self)); + return make_sequence(self, args).optimize(compressor); + } + } + if (exp instanceof AST_Function) { + if (compressor.option("inline") + && !exp.name + && !exp.uses_arguments + && !exp.uses_eval + && exp.body.length == 1 + && all(exp.argnames, function(arg) { + return arg.__unused; + }) + && !self.has_pure_annotation(compressor)) { + var value; + if (stat instanceof AST_Return) { + value = stat.value; + } else if (stat instanceof AST_SimpleStatement) { + value = make_node(AST_UnaryPrefix, stat, { + operator: "void", + expression: stat.body + }); + } + if (value) { + var tw = new TreeWalker(function(node) { + if (!value) return true; + if (node instanceof AST_SymbolRef) { + var ref = node.scope.find_variable(node); + if (ref && ref.scope.parent_scope === fn.parent_scope) { + value = null; + return true; + } + } + if (node instanceof AST_This && !tw.find_parent(AST_Scope)) { + value = null; + return true; + } + }); + value.walk(tw); + } + if (value) { + var args = self.args.concat(value); + return make_sequence(self, args).optimize(compressor); + } + } + if (compressor.option("side_effects") && all(exp.body, is_empty)) { + var args = self.args.concat(make_node(AST_Undefined, self)); + return make_sequence(self, args).optimize(compressor); + } + } + if (compressor.option("drop_console")) { + if (exp instanceof AST_PropAccess) { + var name = exp.expression; + while (name.expression) { + name = name.expression; + } + if (is_undeclared_ref(name) && name.name == "console") { + return make_node(AST_Undefined, self).optimize(compressor); + } + } + } + if (compressor.option("negate_iife") + && compressor.parent() instanceof AST_SimpleStatement + && is_iife_call(self)) { + return self.negate(compressor, true); + } + var ev = self.evaluate(compressor); + if (ev !== self) { + ev = make_node_from_constant(ev, self).optimize(compressor); + return best_of(compressor, ev, self); + } + return self; + }); + + OPT(AST_New, function(self, compressor){ + if (compressor.option("unsafe")) { + var exp = self.expression; + if (is_undeclared_ref(exp)) { + switch (exp.name) { + case "Object": + case "RegExp": + case "Function": + case "Error": + case "Array": + return make_node(AST_Call, self, self).transform(compressor); + } + } + } + return self; + }); + + OPT(AST_Sequence, function(self, compressor){ + if (!compressor.option("side_effects")) return self; + var expressions = []; + filter_for_side_effects(); + var end = expressions.length - 1; + trim_right_for_undefined(); + if (end > 0 && compressor.option("cascade")) trim_left_for_assignment(); + if (end == 0) { + self = maintain_this_binding(compressor.parent(), self, expressions[0]); + if (!(self instanceof AST_Sequence)) self = self.optimize(compressor); + return self; + } + self.expressions = expressions; + return self; + + function filter_for_side_effects() { + var first = first_in_statement(compressor); + var last = self.expressions.length - 1; + self.expressions.forEach(function(expr, index) { + if (index < last) expr = expr.drop_side_effect_free(compressor, first); + if (expr) { + merge_sequence(expressions, expr); + first = false; + } + }); + } + + function trim_right_for_undefined() { + while (end > 0 && is_undefined(expressions[end], compressor)) end--; + if (end < expressions.length - 1) { + expressions[end] = make_node(AST_UnaryPrefix, self, { + operator : "void", + expression : expressions[end] + }); + expressions.length = end + 1; + } + } + + function trim_left_for_assignment() { + for (var i = 0, j = 1; j <= end; j++) { + var left = expressions[i]; + var cdr = expressions[j]; + if (left instanceof AST_Assign + && !left.left.has_side_effects(compressor)) { + left = left.left; + } else if (left instanceof AST_Unary + && (left.operator == "++" || left.operator == "--")) { + left = left.expression; + } else left = null; + if (!left || is_lhs_read_only(left)) { + expressions[++i] = cdr; + continue; + } + var parent = null, field; + expressions[j] = cdr = cdr.clone(); + while (true) { + if (cdr.equivalent_to(left)) { + var car = expressions[i]; + if (car instanceof AST_UnaryPostfix) { + car = make_node(AST_UnaryPrefix, car, { + operator: car.operator, + expression: left + }); + } else { + car.write_only = false; + } + if (parent) { + parent[field] = car; + expressions[i] = expressions[j]; + } else { + expressions[i] = car; + } + break; + } + if (cdr instanceof AST_Binary && !(cdr instanceof AST_Assign)) { + if (cdr.left.is_constant()) { + if (cdr.operator == "||" || cdr.operator == "&&") { + expressions[++i] = expressions[j]; + break; + } + field = "right"; + } else { + field = "left"; + } + } else if (cdr instanceof AST_Call + && !(left instanceof AST_PropAccess && cdr.expression.equivalent_to(left)) + || cdr instanceof AST_PropAccess + || cdr instanceof AST_Unary && !unary_side_effects(cdr.operator)) { + field = "expression"; + } else if (cdr instanceof AST_Conditional) { + field = "condition"; + } else { + expressions[++i] = expressions[j]; + break; + } + parent = cdr; + cdr = cdr[field] = cdr[field].clone(); + } + } + end = i; + expressions.length = end + 1; + } + }); + + AST_Unary.DEFMETHOD("lift_sequences", function(compressor){ + if (compressor.option("sequences")) { + if (this.expression instanceof AST_Sequence) { + var x = this.expression.expressions.slice(); + var e = this.clone(); + e.expression = x.pop(); + x.push(e); + return make_sequence(this, x).optimize(compressor); + } + } + return this; + }); + + OPT(AST_UnaryPostfix, function(self, compressor){ + return self.lift_sequences(compressor); + }); + + OPT(AST_UnaryPrefix, function(self, compressor){ + var e = self.expression; + if (self.operator == "delete" + && !(e instanceof AST_SymbolRef + || e instanceof AST_PropAccess + || e instanceof AST_NaN + || e instanceof AST_Infinity + || e instanceof AST_Undefined)) { + if (e instanceof AST_Sequence) { + e = e.expressions.slice(); + e.push(make_node(AST_True, self)); + return make_sequence(self, e).optimize(compressor); + } + return make_sequence(self, [ e, make_node(AST_True, self) ]).optimize(compressor); + } + var seq = self.lift_sequences(compressor); + if (seq !== self) { + return seq; + } + if (compressor.option("side_effects") && self.operator == "void") { + e = e.drop_side_effect_free(compressor); + if (e) { + self.expression = e; + return self; + } else { + return make_node(AST_Undefined, self).optimize(compressor); + } + } + if (compressor.option("booleans") && compressor.in_boolean_context()) { + switch (self.operator) { + case "!": + if (e instanceof AST_UnaryPrefix && e.operator == "!") { + // !!foo ==> foo, if we're in boolean context + return e.expression; + } + if (e instanceof AST_Binary) { + self = best_of(compressor, self, e.negate(compressor, first_in_statement(compressor))); + } + break; + case "typeof": + // typeof always returns a non-empty string, thus it's + // always true in booleans + compressor.warn("Boolean expression always true [{file}:{line},{col}]", self.start); + return (e instanceof AST_SymbolRef ? make_node(AST_True, self) : make_sequence(self, [ + e, + make_node(AST_True, self) + ])).optimize(compressor); + } + } + if (self.operator == "-" && e instanceof AST_Infinity) { + e = e.transform(compressor); + } + if (e instanceof AST_Binary + && (self.operator == "+" || self.operator == "-") + && (e.operator == "*" || e.operator == "/" || e.operator == "%")) { + return make_node(AST_Binary, self, { + operator: e.operator, + left: make_node(AST_UnaryPrefix, e.left, { + operator: self.operator, + expression: e.left + }), + right: e.right + }); + } + // avoids infinite recursion of numerals + if (self.operator != "-" + || !(e instanceof AST_Number || e instanceof AST_Infinity)) { + var ev = self.evaluate(compressor); + if (ev !== self) { + ev = make_node_from_constant(ev, self).optimize(compressor); + return best_of(compressor, ev, self); + } + } + return self; + }); + + AST_Binary.DEFMETHOD("lift_sequences", function(compressor){ + if (compressor.option("sequences")) { + if (this.left instanceof AST_Sequence) { + var x = this.left.expressions.slice(); + var e = this.clone(); + e.left = x.pop(); + x.push(e); + return make_sequence(this, x).optimize(compressor); + } + if (this.right instanceof AST_Sequence && !this.left.has_side_effects(compressor)) { + var assign = this.operator == "=" && this.left instanceof AST_SymbolRef; + var x = this.right.expressions; + var last = x.length - 1; + for (var i = 0; i < last; i++) { + if (!assign && x[i].has_side_effects(compressor)) break; + } + if (i == last) { + x = x.slice(); + var e = this.clone(); + e.right = x.pop(); + x.push(e); + return make_sequence(this, x).optimize(compressor); + } else if (i > 0) { + var e = this.clone(); + e.right = make_sequence(this.right, x.slice(i)); + x = x.slice(0, i); + x.push(e); + return make_sequence(this, x).optimize(compressor); + } + } + } + return this; + }); + + var commutativeOperators = makePredicate("== === != !== * & | ^"); + + OPT(AST_Binary, function(self, compressor){ + function reversible() { + return self.left.is_constant() + || self.right.is_constant() + || !self.left.has_side_effects(compressor) + && !self.right.has_side_effects(compressor); + } + function reverse(op) { + if (reversible()) { + if (op) self.operator = op; + var tmp = self.left; + self.left = self.right; + self.right = tmp; + } + } + if (commutativeOperators(self.operator)) { + if (self.right.is_constant() + && !self.left.is_constant()) { + // if right is a constant, whatever side effects the + // left side might have could not influence the + // result. hence, force switch. + + if (!(self.left instanceof AST_Binary + && PRECEDENCE[self.left.operator] >= PRECEDENCE[self.operator])) { + reverse(); + } + } + } + self = self.lift_sequences(compressor); + if (compressor.option("comparisons")) switch (self.operator) { + case "===": + case "!==": + if ((self.left.is_string(compressor) && self.right.is_string(compressor)) || + (self.left.is_number(compressor) && self.right.is_number(compressor)) || + (self.left.is_boolean() && self.right.is_boolean())) { + self.operator = self.operator.substr(0, 2); + } + // XXX: intentionally falling down to the next case + case "==": + case "!=": + // "undefined" == typeof x => undefined === x + if (compressor.option("typeofs") + && self.left instanceof AST_String + && self.left.value == "undefined" + && self.right instanceof AST_UnaryPrefix + && self.right.operator == "typeof") { + var expr = self.right.expression; + if (expr instanceof AST_SymbolRef ? expr.is_declared(compressor) + : !(expr instanceof AST_PropAccess && compressor.option("ie8"))) { + self.right = expr; + self.left = make_node(AST_Undefined, self.left).optimize(compressor); + if (self.operator.length == 2) self.operator += "="; + } + } + break; + } + if (compressor.option("booleans") && self.operator == "+" && compressor.in_boolean_context()) { + var ll = self.left.evaluate(compressor); + var rr = self.right.evaluate(compressor); + if (ll && typeof ll == "string") { + compressor.warn("+ in boolean context always true [{file}:{line},{col}]", self.start); + return make_sequence(self, [ + self.right, + make_node(AST_True, self) + ]).optimize(compressor); + } + if (rr && typeof rr == "string") { + compressor.warn("+ in boolean context always true [{file}:{line},{col}]", self.start); + return make_sequence(self, [ + self.left, + make_node(AST_True, self) + ]).optimize(compressor); + } + } + if (compressor.option("comparisons") && self.is_boolean()) { + if (!(compressor.parent() instanceof AST_Binary) + || compressor.parent() instanceof AST_Assign) { + var negated = make_node(AST_UnaryPrefix, self, { + operator: "!", + expression: self.negate(compressor, first_in_statement(compressor)) + }); + self = best_of(compressor, self, negated); + } + if (compressor.option("unsafe_comps")) { + switch (self.operator) { + case "<": reverse(">"); break; + case "<=": reverse(">="); break; + } + } + } + if (self.operator == "+") { + if (self.right instanceof AST_String + && self.right.getValue() == "" + && self.left.is_string(compressor)) { + return self.left; + } + if (self.left instanceof AST_String + && self.left.getValue() == "" + && self.right.is_string(compressor)) { + return self.right; + } + if (self.left instanceof AST_Binary + && self.left.operator == "+" + && self.left.left instanceof AST_String + && self.left.left.getValue() == "" + && self.right.is_string(compressor)) { + self.left = self.left.right; + return self.transform(compressor); + } + } + if (compressor.option("evaluate")) { + switch (self.operator) { + case "&&": + var ll = self.left.evaluate(compressor); + if (!ll) { + compressor.warn("Condition left of && always false [{file}:{line},{col}]", self.start); + return maintain_this_binding(compressor.parent(), self, self.left).optimize(compressor); + } else if (ll !== self.left) { + compressor.warn("Condition left of && always true [{file}:{line},{col}]", self.start); + return maintain_this_binding(compressor.parent(), self, self.right).optimize(compressor); + } + if (compressor.option("booleans") && compressor.in_boolean_context()) { + var rr = self.right.evaluate(compressor); + if (!rr) { + compressor.warn("Boolean && always false [{file}:{line},{col}]", self.start); + return make_sequence(self, [ + self.left, + make_node(AST_False, self) + ]).optimize(compressor); + } else if (rr !== self.right) { + compressor.warn("Dropping side-effect-free && in boolean context [{file}:{line},{col}]", self.start); + return self.left.optimize(compressor); + } + } + break; + case "||": + var ll = self.left.evaluate(compressor); + if (!ll) { + compressor.warn("Condition left of || always false [{file}:{line},{col}]", self.start); + return maintain_this_binding(compressor.parent(), self, self.right).optimize(compressor); + } else if (ll !== self.left) { + compressor.warn("Condition left of || always true [{file}:{line},{col}]", self.start); + return maintain_this_binding(compressor.parent(), self, self.left).optimize(compressor); + } + if (compressor.option("booleans") && compressor.in_boolean_context()) { + var rr = self.right.evaluate(compressor); + if (!rr) { + compressor.warn("Dropping side-effect-free || in boolean context [{file}:{line},{col}]", self.start); + return self.left.optimize(compressor); + } else if (rr !== self.right) { + compressor.warn("Boolean || always true [{file}:{line},{col}]", self.start); + return make_sequence(self, [ + self.left, + make_node(AST_True, self) + ]).optimize(compressor); + } + } + break; + } + var associative = true; + switch (self.operator) { + case "+": + // "foo" + ("bar" + x) => "foobar" + x + if (self.left instanceof AST_Constant + && self.right instanceof AST_Binary + && self.right.operator == "+" + && self.right.left instanceof AST_Constant + && self.right.is_string(compressor)) { + self = make_node(AST_Binary, self, { + operator: "+", + left: make_node(AST_String, self.left, { + value: "" + self.left.getValue() + self.right.left.getValue(), + start: self.left.start, + end: self.right.left.end + }), + right: self.right.right + }); + } + // (x + "foo") + "bar" => x + "foobar" + if (self.right instanceof AST_Constant + && self.left instanceof AST_Binary + && self.left.operator == "+" + && self.left.right instanceof AST_Constant + && self.left.is_string(compressor)) { + self = make_node(AST_Binary, self, { + operator: "+", + left: self.left.left, + right: make_node(AST_String, self.right, { + value: "" + self.left.right.getValue() + self.right.getValue(), + start: self.left.right.start, + end: self.right.end + }) + }); + } + // (x + "foo") + ("bar" + y) => (x + "foobar") + y + if (self.left instanceof AST_Binary + && self.left.operator == "+" + && self.left.is_string(compressor) + && self.left.right instanceof AST_Constant + && self.right instanceof AST_Binary + && self.right.operator == "+" + && self.right.left instanceof AST_Constant + && self.right.is_string(compressor)) { + self = make_node(AST_Binary, self, { + operator: "+", + left: make_node(AST_Binary, self.left, { + operator: "+", + left: self.left.left, + right: make_node(AST_String, self.left.right, { + value: "" + self.left.right.getValue() + self.right.left.getValue(), + start: self.left.right.start, + end: self.right.left.end + }) + }), + right: self.right.right + }); + } + // a + -b => a - b + if (self.right instanceof AST_UnaryPrefix + && self.right.operator == "-" + && self.left.is_number(compressor)) { + self = make_node(AST_Binary, self, { + operator: "-", + left: self.left, + right: self.right.expression + }); + break; + } + // -a + b => b - a + if (self.left instanceof AST_UnaryPrefix + && self.left.operator == "-" + && reversible() + && self.right.is_number(compressor)) { + self = make_node(AST_Binary, self, { + operator: "-", + left: self.right, + right: self.left.expression + }); + break; + } + case "*": + associative = compressor.option("unsafe_math"); + case "&": + case "|": + case "^": + // a + +b => +b + a + if (self.left.is_number(compressor) + && self.right.is_number(compressor) + && reversible() + && !(self.left instanceof AST_Binary + && self.left.operator != self.operator + && PRECEDENCE[self.left.operator] >= PRECEDENCE[self.operator])) { + var reversed = make_node(AST_Binary, self, { + operator: self.operator, + left: self.right, + right: self.left + }); + if (self.right instanceof AST_Constant + && !(self.left instanceof AST_Constant)) { + self = best_of(compressor, reversed, self); + } else { + self = best_of(compressor, self, reversed); + } + } + if (associative && self.is_number(compressor)) { + // a + (b + c) => (a + b) + c + if (self.right instanceof AST_Binary + && self.right.operator == self.operator) { + self = make_node(AST_Binary, self, { + operator: self.operator, + left: make_node(AST_Binary, self.left, { + operator: self.operator, + left: self.left, + right: self.right.left, + start: self.left.start, + end: self.right.left.end + }), + right: self.right.right + }); + } + // (n + 2) + 3 => 5 + n + // (2 * n) * 3 => 6 + n + if (self.right instanceof AST_Constant + && self.left instanceof AST_Binary + && self.left.operator == self.operator) { + if (self.left.left instanceof AST_Constant) { + self = make_node(AST_Binary, self, { + operator: self.operator, + left: make_node(AST_Binary, self.left, { + operator: self.operator, + left: self.left.left, + right: self.right, + start: self.left.left.start, + end: self.right.end + }), + right: self.left.right + }); + } else if (self.left.right instanceof AST_Constant) { + self = make_node(AST_Binary, self, { + operator: self.operator, + left: make_node(AST_Binary, self.left, { + operator: self.operator, + left: self.left.right, + right: self.right, + start: self.left.right.start, + end: self.right.end + }), + right: self.left.left + }); + } + } + // (a | 1) | (2 | d) => (3 | a) | b + if (self.left instanceof AST_Binary + && self.left.operator == self.operator + && self.left.right instanceof AST_Constant + && self.right instanceof AST_Binary + && self.right.operator == self.operator + && self.right.left instanceof AST_Constant) { + self = make_node(AST_Binary, self, { + operator: self.operator, + left: make_node(AST_Binary, self.left, { + operator: self.operator, + left: make_node(AST_Binary, self.left.left, { + operator: self.operator, + left: self.left.right, + right: self.right.left, + start: self.left.right.start, + end: self.right.left.end + }), + right: self.left.left + }), + right: self.right.right + }); + } + } + } + } + // x && (y && z) ==> x && y && z + // x || (y || z) ==> x || y || z + // x + ("y" + z) ==> x + "y" + z + // "x" + (y + "z")==> "x" + y + "z" + if (self.right instanceof AST_Binary + && self.right.operator == self.operator + && (self.operator == "&&" + || self.operator == "||" + || (self.operator == "+" + && (self.right.left.is_string(compressor) + || (self.left.is_string(compressor) + && self.right.right.is_string(compressor)))))) + { + self.left = make_node(AST_Binary, self.left, { + operator : self.operator, + left : self.left, + right : self.right.left + }); + self.right = self.right.right; + return self.transform(compressor); + } + var ev = self.evaluate(compressor); + if (ev !== self) { + ev = make_node_from_constant(ev, self).optimize(compressor); + return best_of(compressor, ev, self); + } + return self; + }); + + OPT(AST_SymbolRef, function(self, compressor){ + var def = self.resolve_defines(compressor); + if (def) { + return def.optimize(compressor); + } + // testing against !self.scope.uses_with first is an optimization + if (!compressor.option("ie8") + && is_undeclared_ref(self) + && (!self.scope.uses_with || !compressor.find_parent(AST_With))) { + switch (self.name) { + case "undefined": + return make_node(AST_Undefined, self).optimize(compressor); + case "NaN": + return make_node(AST_NaN, self).optimize(compressor); + case "Infinity": + return make_node(AST_Infinity, self).optimize(compressor); + } + } + if (compressor.option("reduce_vars") + && is_lhs(self, compressor.parent()) !== self) { + var d = self.definition(); + var fixed = self.fixed_value(); + if (fixed instanceof AST_Defun) { + d.fixed = fixed = make_node(AST_Function, fixed, fixed); + } + if (compressor.option("unused") + && fixed instanceof AST_Function + && d.references.length == 1 + && !(d.scope.uses_arguments && d.orig[0] instanceof AST_SymbolFunarg) + && !d.scope.uses_eval + && compressor.find_parent(AST_Scope) === fixed.parent_scope) { + return fixed.clone(true); + } + if (compressor.option("evaluate") && fixed) { + if (d.should_replace === undefined) { + var init = fixed.evaluate(compressor); + if (init !== fixed && (compressor.option("unsafe_regexp") || !(init instanceof RegExp))) { + init = make_node_from_constant(init, fixed); + var value_length = init.optimize(compressor).print_to_string().length; + var fn; + if (has_symbol_ref(fixed)) { + fn = function() { + var result = init.optimize(compressor); + return result === init ? result.clone(true) : result; + }; + } else { + value_length = Math.min(value_length, fixed.print_to_string().length); + fn = function() { + var result = best_of_expression(init.optimize(compressor), fixed); + return result === init || result === fixed ? result.clone(true) : result; + }; + } + var name_length = d.name.length; + var overhead = 0; + if (compressor.option("unused") && !compressor.exposed(d)) { + overhead = (name_length + 2 + value_length) / d.references.length; + } + d.should_replace = value_length <= name_length + overhead ? fn : false; + } else { + d.should_replace = false; + } + } + if (d.should_replace) { + return d.should_replace(); + } + } + } + return self; + + function has_symbol_ref(value) { + var found; + value.walk(new TreeWalker(function(node) { + if (node instanceof AST_SymbolRef) found = true; + if (found) return true; + })); + return found; + } + }); + + function is_atomic(lhs, self) { + return lhs instanceof AST_SymbolRef || lhs.TYPE === self.TYPE; + } + + OPT(AST_Undefined, function(self, compressor){ + if (compressor.option("unsafe")) { + var undef = find_variable(compressor, "undefined"); + if (undef) { + var ref = make_node(AST_SymbolRef, self, { + name : "undefined", + scope : undef.scope, + thedef : undef + }); + ref.is_undefined = true; + return ref; + } + } + var lhs = is_lhs(compressor.self(), compressor.parent()); + if (lhs && is_atomic(lhs, self)) return self; + return make_node(AST_UnaryPrefix, self, { + operator: "void", + expression: make_node(AST_Number, self, { + value: 0 + }) + }); + }); + + OPT(AST_Infinity, function(self, compressor){ + var lhs = is_lhs(compressor.self(), compressor.parent()); + if (lhs && is_atomic(lhs, self)) return self; + if (compressor.option("keep_infinity") + && !(lhs && !is_atomic(lhs, self)) + && !find_variable(compressor, "Infinity")) + return self; + return make_node(AST_Binary, self, { + operator: "/", + left: make_node(AST_Number, self, { + value: 1 + }), + right: make_node(AST_Number, self, { + value: 0 + }) + }); + }); + + OPT(AST_NaN, function(self, compressor){ + var lhs = is_lhs(compressor.self(), compressor.parent()); + if (lhs && !is_atomic(lhs, self) + || find_variable(compressor, "NaN")) { + return make_node(AST_Binary, self, { + operator: "/", + left: make_node(AST_Number, self, { + value: 0 + }), + right: make_node(AST_Number, self, { + value: 0 + }) + }); + } + return self; + }); + + var ASSIGN_OPS = [ '+', '-', '/', '*', '%', '>>', '<<', '>>>', '|', '^', '&' ]; + var ASSIGN_OPS_COMMUTATIVE = [ '*', '|', '^', '&' ]; + OPT(AST_Assign, function(self, compressor){ + self = self.lift_sequences(compressor); + if (self.operator == "=" && self.left instanceof AST_SymbolRef && self.right instanceof AST_Binary) { + // x = expr1 OP expr2 + if (self.right.left instanceof AST_SymbolRef + && self.right.left.name == self.left.name + && member(self.right.operator, ASSIGN_OPS)) { + // x = x - 2 ---> x -= 2 + self.operator = self.right.operator + "="; + self.right = self.right.right; + } + else if (self.right.right instanceof AST_SymbolRef + && self.right.right.name == self.left.name + && member(self.right.operator, ASSIGN_OPS_COMMUTATIVE) + && !self.right.left.has_side_effects(compressor)) { + // x = 2 & x ---> x &= 2 + self.operator = self.right.operator + "="; + self.right = self.right.left; + } + } + return self; + }); + + OPT(AST_Conditional, function(self, compressor){ + if (!compressor.option("conditionals")) return self; + // This looks like lift_sequences(), should probably be under "sequences" + if (self.condition instanceof AST_Sequence) { + var expressions = self.condition.expressions.slice(); + self.condition = expressions.pop(); + expressions.push(self); + return make_sequence(self, expressions); + } + var cond = self.condition.evaluate(compressor); + if (cond !== self.condition) { + if (cond) { + compressor.warn("Condition always true [{file}:{line},{col}]", self.start); + return maintain_this_binding(compressor.parent(), self, self.consequent); + } else { + compressor.warn("Condition always false [{file}:{line},{col}]", self.start); + return maintain_this_binding(compressor.parent(), self, self.alternative); + } + } + var negated = cond.negate(compressor, first_in_statement(compressor)); + if (best_of(compressor, cond, negated) === negated) { + self = make_node(AST_Conditional, self, { + condition: negated, + consequent: self.alternative, + alternative: self.consequent + }); + } + var condition = self.condition; + var consequent = self.consequent; + var alternative = self.alternative; + // x?x:y --> x||y + if (condition instanceof AST_SymbolRef + && consequent instanceof AST_SymbolRef + && condition.definition() === consequent.definition()) { + return make_node(AST_Binary, self, { + operator: "||", + left: condition, + right: alternative + }); + } + // if (foo) exp = something; else exp = something_else; + // | + // v + // exp = foo ? something : something_else; + if (consequent instanceof AST_Assign + && alternative instanceof AST_Assign + && consequent.operator == alternative.operator + && consequent.left.equivalent_to(alternative.left) + && (!self.condition.has_side_effects(compressor) + || consequent.operator == "=" + && !consequent.left.has_side_effects(compressor))) { + return make_node(AST_Assign, self, { + operator: consequent.operator, + left: consequent.left, + right: make_node(AST_Conditional, self, { + condition: self.condition, + consequent: consequent.right, + alternative: alternative.right + }) + }); + } + // x ? y(a) : y(b) --> y(x ? a : b) + if (consequent instanceof AST_Call + && alternative.TYPE === consequent.TYPE + && consequent.args.length == 1 + && alternative.args.length == 1 + && consequent.expression.equivalent_to(alternative.expression) + && !consequent.expression.has_side_effects(compressor)) { + consequent.args[0] = make_node(AST_Conditional, self, { + condition: self.condition, + consequent: consequent.args[0], + alternative: alternative.args[0] + }); + return consequent; + } + // x?y?z:a:a --> x&&y?z:a + if (consequent instanceof AST_Conditional + && consequent.alternative.equivalent_to(alternative)) { + return make_node(AST_Conditional, self, { + condition: make_node(AST_Binary, self, { + left: self.condition, + operator: "&&", + right: consequent.condition + }), + consequent: consequent.consequent, + alternative: alternative + }); + } + // x ? y : y --> x, y + if (consequent.equivalent_to(alternative)) { + return make_sequence(self, [ + self.condition, + consequent + ]).optimize(compressor); + } + + if (is_true(self.consequent)) { + if (is_false(self.alternative)) { + // c ? true : false ---> !!c + return booleanize(self.condition); + } + // c ? true : x ---> !!c || x + return make_node(AST_Binary, self, { + operator: "||", + left: booleanize(self.condition), + right: self.alternative + }); + } + if (is_false(self.consequent)) { + if (is_true(self.alternative)) { + // c ? false : true ---> !c + return booleanize(self.condition.negate(compressor)); + } + // c ? false : x ---> !c && x + return make_node(AST_Binary, self, { + operator: "&&", + left: booleanize(self.condition.negate(compressor)), + right: self.alternative + }); + } + if (is_true(self.alternative)) { + // c ? x : true ---> !c || x + return make_node(AST_Binary, self, { + operator: "||", + left: booleanize(self.condition.negate(compressor)), + right: self.consequent + }); + } + if (is_false(self.alternative)) { + // c ? x : false ---> !!c && x + return make_node(AST_Binary, self, { + operator: "&&", + left: booleanize(self.condition), + right: self.consequent + }); + } + + return self; + + function booleanize(node) { + if (node.is_boolean()) return node; + // !!expression + return make_node(AST_UnaryPrefix, node, { + operator: "!", + expression: node.negate(compressor) + }); + } + + // AST_True or !0 + function is_true(node) { + return node instanceof AST_True + || (node instanceof AST_UnaryPrefix + && node.operator == "!" + && node.expression instanceof AST_Constant + && !node.expression.value); + } + // AST_False or !1 + function is_false(node) { + return node instanceof AST_False + || (node instanceof AST_UnaryPrefix + && node.operator == "!" + && node.expression instanceof AST_Constant + && !!node.expression.value); + } + }); + + OPT(AST_Boolean, function(self, compressor){ + if (compressor.option("booleans")) { + var p = compressor.parent(); + if (p instanceof AST_Binary && (p.operator == "==" + || p.operator == "!=")) { + compressor.warn("Non-strict equality against boolean: {operator} {value} [{file}:{line},{col}]", { + operator : p.operator, + value : self.value, + file : p.start.file, + line : p.start.line, + col : p.start.col, + }); + return make_node(AST_Number, self, { + value: +self.value + }); + } + return make_node(AST_UnaryPrefix, self, { + operator: "!", + expression: make_node(AST_Number, self, { + value: 1 - self.value + }) + }); + } + return self; + }); + + OPT(AST_Sub, function(self, compressor){ + var prop = self.property; + if (prop instanceof AST_String && compressor.option("properties")) { + prop = prop.getValue(); + if (is_identifier_string(prop)) { + return make_node(AST_Dot, self, { + expression : self.expression, + property : prop + }).optimize(compressor); + } + var v = parseFloat(prop); + if (!isNaN(v) && v.toString() == prop) { + self.property = make_node(AST_Number, self.property, { + value: v + }); + } + } + var ev = self.evaluate(compressor); + if (ev !== self) { + ev = make_node_from_constant(ev, self).optimize(compressor); + return best_of(compressor, ev, self); + } + return self; + }); + + AST_Lambda.DEFMETHOD("contains_this", function() { + var result; + var self = this; + self.walk(new TreeWalker(function(node) { + if (result) return true; + if (node instanceof AST_This) return result = true; + if (node !== self && node instanceof AST_Scope) return true; + })); + return result; + }); + + OPT(AST_Dot, function(self, compressor){ + var def = self.resolve_defines(compressor); + if (def) { + return def.optimize(compressor); + } + if (compressor.option("unsafe") && self.expression instanceof AST_Object) { + var values = self.expression.properties; + for (var i = values.length; --i >= 0;) { + if (values[i].key === self.property) { + var value = values[i].value; + if (value instanceof AST_Function ? !value.contains_this() : !value.has_side_effects(compressor)) { + var obj = self.expression.clone(); + obj.properties = obj.properties.slice(); + obj.properties.splice(i, 1); + return make_sequence(self, [ obj, value ]).optimize(compressor); + } + } + } + } + if (compressor.option("unsafe_proto") + && self.expression instanceof AST_Dot + && self.expression.property == "prototype") { + var exp = self.expression.expression; + if (is_undeclared_ref(exp)) switch (exp.name) { + case "Array": + self.expression = make_node(AST_Array, self.expression, { + elements: [] + }); + break; + case "Object": + self.expression = make_node(AST_Object, self.expression, { + properties: [] + }); + break; + case "String": + self.expression = make_node(AST_String, self.expression, { + value: "" + }); + break; + } + } + var ev = self.evaluate(compressor); + if (ev !== self) { + ev = make_node_from_constant(ev, self).optimize(compressor); + return best_of(compressor, ev, self); + } + return self; + }); + + function literals_in_boolean_context(self, compressor) { + if (compressor.option("booleans") && compressor.in_boolean_context()) { + return best_of(compressor, self, make_sequence(self, [ + self, + make_node(AST_True, self) + ]).optimize(compressor)); + } + return self; + }; + OPT(AST_Array, literals_in_boolean_context); + OPT(AST_Object, literals_in_boolean_context); + OPT(AST_RegExp, literals_in_boolean_context); + + OPT(AST_Return, function(self, compressor){ + if (self.value && is_undefined(self.value, compressor)) { + self.value = null; + } + return self; + }); + + OPT(AST_VarDef, function(self, compressor){ + var defines = compressor.option("global_defs"); + if (defines && HOP(defines, self.name.name)) { + compressor.warn('global_defs ' + self.name.name + ' redefined [{file}:{line},{col}]', self.start); + } + return self; + }); + +})(); diff --git a/node_modules/html-minifier/node_modules/uglify-js/lib/minify.js b/node_modules/html-minifier/node_modules/uglify-js/lib/minify.js new file mode 100644 index 000000000..773e953ae --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/lib/minify.js @@ -0,0 +1,220 @@ +"use strict"; + +var to_ascii = typeof atob == "undefined" ? function(b64) { + return new Buffer(b64, "base64").toString(); +} : atob; +var to_base64 = typeof btoa == "undefined" ? function(str) { + return new Buffer(str).toString("base64"); +} : btoa; + +function read_source_map(code) { + var match = /\n\/\/# sourceMappingURL=data:application\/json(;.*?)?;base64,(.*)/.exec(code); + if (!match) { + AST_Node.warn("inline source map not found"); + return null; + } + return to_ascii(match[2]); +} + +function set_shorthand(name, options, keys) { + if (options[name]) { + keys.forEach(function(key) { + if (options[key]) { + if (typeof options[key] != "object") options[key] = {}; + if (!(name in options[key])) options[key][name] = options[name]; + } + }); + } +} + +function init_cache(cache) { + if (!cache) return; + if (!("cname" in cache)) cache.cname = -1; + if (!("props" in cache)) { + cache.props = new Dictionary(); + } else if (!(cache.props instanceof Dictionary)) { + cache.props = Dictionary.fromObject(cache.props); + } +} + +function to_json(cache) { + return { + cname: cache.cname, + props: cache.props.toObject() + }; +} + +function minify(files, options) { + var warn_function = AST_Node.warn_function; + try { + options = defaults(options, { + compress: {}, + ie8: false, + keep_fnames: false, + mangle: {}, + nameCache: null, + output: {}, + parse: {}, + sourceMap: false, + timings: false, + toplevel: false, + warnings: false, + wrap: false, + }, true); + var timings = options.timings && { + start: Date.now() + }; + set_shorthand("ie8", options, [ "compress", "mangle", "output" ]); + set_shorthand("keep_fnames", options, [ "compress", "mangle" ]); + set_shorthand("toplevel", options, [ "compress", "mangle" ]); + set_shorthand("warnings", options, [ "compress" ]); + var quoted_props; + if (options.mangle) { + options.mangle = defaults(options.mangle, { + cache: options.nameCache && (options.nameCache.vars || {}), + eval: false, + ie8: false, + keep_fnames: false, + properties: false, + reserved: [], + toplevel: false, + }, true); + if (options.mangle.properties) { + if (typeof options.mangle.properties != "object") { + options.mangle.properties = {}; + } + if (options.mangle.properties.keep_quoted) { + quoted_props = options.mangle.properties.reserved; + if (!Array.isArray(quoted_props)) quoted_props = []; + options.mangle.properties.reserved = quoted_props; + } + if (options.nameCache && !("cache" in options.mangle.properties)) { + options.mangle.properties.cache = options.nameCache.props || {}; + } + } + init_cache(options.mangle.cache); + init_cache(options.mangle.properties.cache); + } + if (options.sourceMap) { + options.sourceMap = defaults(options.sourceMap, { + content: null, + filename: null, + includeSources: false, + root: null, + url: null, + }, true); + } + var warnings = []; + if (options.warnings && !AST_Node.warn_function) { + AST_Node.warn_function = function(warning) { + warnings.push(warning); + }; + } + if (timings) timings.parse = Date.now(); + var toplevel; + if (files instanceof AST_Toplevel) { + toplevel = files; + } else { + if (typeof files == "string") { + files = [ files ]; + } + options.parse = options.parse || {}; + options.parse.toplevel = null; + for (var name in files) if (HOP(files, name)) { + options.parse.filename = name; + options.parse.toplevel = parse(files[name], options.parse); + if (options.sourceMap && options.sourceMap.content == "inline") { + if (Object.keys(files).length > 1) + throw new Error("inline source map only works with singular input"); + options.sourceMap.content = read_source_map(files[name]); + } + } + toplevel = options.parse.toplevel; + } + if (quoted_props) { + reserve_quoted_keys(toplevel, quoted_props); + } + if (options.wrap) { + toplevel = toplevel.wrap_commonjs(options.wrap); + } + if (timings) timings.scope1 = Date.now(); + if (options.compress) toplevel.figure_out_scope(options.mangle); + if (timings) timings.compress = Date.now(); + if (options.compress) toplevel = new Compressor(options.compress).compress(toplevel); + if (timings) timings.scope2 = Date.now(); + if (options.mangle) toplevel.figure_out_scope(options.mangle); + if (timings) timings.mangle = Date.now(); + if (options.mangle) { + base54.reset(); + toplevel.compute_char_frequency(options.mangle); + toplevel.mangle_names(options.mangle); + } + if (timings) timings.properties = Date.now(); + if (options.mangle && options.mangle.properties) { + toplevel = mangle_properties(toplevel, options.mangle.properties); + } + if (timings) timings.output = Date.now(); + var result = {}; + if (options.output.ast) { + result.ast = toplevel; + } + if (!HOP(options.output, "code") || options.output.code) { + if (options.sourceMap) { + if (typeof options.sourceMap.content == "string") { + options.sourceMap.content = JSON.parse(options.sourceMap.content); + } + options.output.source_map = SourceMap({ + file: options.sourceMap.filename, + orig: options.sourceMap.content, + root: options.sourceMap.root + }); + if (options.sourceMap.includeSources) { + if (files instanceof AST_Toplevel) { + throw new Error("original source content unavailable"); + } else for (var name in files) if (HOP(files, name)) { + options.output.source_map.get().setSourceContent(name, files[name]); + } + } + } + delete options.output.ast; + delete options.output.code; + var stream = OutputStream(options.output); + toplevel.print(stream); + result.code = stream.get(); + if (options.sourceMap) { + result.map = options.output.source_map.toString(); + if (options.sourceMap.url == "inline") { + result.code += "\n//# sourceMappingURL=data:application/json;charset=utf-8;base64," + to_base64(result.map); + } else if (options.sourceMap.url) { + result.code += "\n//# sourceMappingURL=" + options.sourceMap.url; + } + } + } + if (options.nameCache && options.mangle) { + if (options.mangle.cache) options.nameCache.vars = to_json(options.mangle.cache); + if (options.mangle.properties && options.mangle.properties.cache) { + options.nameCache.props = to_json(options.mangle.properties.cache); + } + } + if (timings) { + timings.end = Date.now(); + result.timings = { + parse: 1e-3 * (timings.scope1 - timings.parse), + scope: 1e-3 * (timings.compress - timings.scope1 + timings.mangle - timings.scope2), + compress: 1e-3 * (timings.scope2 - timings.compress), + mangle: 1e-3 * (timings.properties - timings.mangle), + properties: 1e-3 * (timings.output - timings.properties), + output: 1e-3 * (timings.end - timings.output), + total: 1e-3 * (timings.end - timings.start) + } + } + if (warnings.length) { + result.warnings = warnings; + } + return result; + } catch (ex) { + return { error: ex }; + } finally { + AST_Node.warn_function = warn_function; + } +} diff --git a/node_modules/html-minifier/node_modules/uglify-js/lib/mozilla-ast.js b/node_modules/html-minifier/node_modules/uglify-js/lib/mozilla-ast.js new file mode 100644 index 000000000..8d7ee4b85 --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/lib/mozilla-ast.js @@ -0,0 +1,615 @@ +/*********************************************************************** + + A JavaScript tokenizer / parser / beautifier / compressor. + https://github.com/mishoo/UglifyJS2 + + -------------------------------- (C) --------------------------------- + + Author: Mihai Bazon + + http://mihai.bazon.net/blog + + Distributed under the BSD license: + + Copyright 2012 (c) Mihai Bazon + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above + copyright notice, this list of conditions and the following + disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + + ***********************************************************************/ + +"use strict"; + +(function(){ + + var normalize_directives = function(body) { + var in_directive = true; + + for (var i = 0; i < body.length; i++) { + if (in_directive && body[i] instanceof AST_Statement && body[i].body instanceof AST_String) { + body[i] = new AST_Directive({ + start: body[i].start, + end: body[i].end, + value: body[i].body.value + }); + } else if (in_directive && !(body[i] instanceof AST_Statement && body[i].body instanceof AST_String)) { + in_directive = false; + } + } + + return body; + }; + + var MOZ_TO_ME = { + Program: function(M) { + return new AST_Toplevel({ + start: my_start_token(M), + end: my_end_token(M), + body: normalize_directives(M.body.map(from_moz)) + }); + }, + FunctionDeclaration: function(M) { + return new AST_Defun({ + start: my_start_token(M), + end: my_end_token(M), + name: from_moz(M.id), + argnames: M.params.map(from_moz), + body: normalize_directives(from_moz(M.body).body) + }); + }, + FunctionExpression: function(M) { + return new AST_Function({ + start: my_start_token(M), + end: my_end_token(M), + name: from_moz(M.id), + argnames: M.params.map(from_moz), + body: normalize_directives(from_moz(M.body).body) + }); + }, + ExpressionStatement: function(M) { + return new AST_SimpleStatement({ + start: my_start_token(M), + end: my_end_token(M), + body: from_moz(M.expression) + }); + }, + TryStatement: function(M) { + var handlers = M.handlers || [M.handler]; + if (handlers.length > 1 || M.guardedHandlers && M.guardedHandlers.length) { + throw new Error("Multiple catch clauses are not supported."); + } + return new AST_Try({ + start : my_start_token(M), + end : my_end_token(M), + body : from_moz(M.block).body, + bcatch : from_moz(handlers[0]), + bfinally : M.finalizer ? new AST_Finally(from_moz(M.finalizer)) : null + }); + }, + Property: function(M) { + var key = M.key; + var args = { + start : my_start_token(key), + end : my_end_token(M.value), + key : key.type == "Identifier" ? key.name : key.value, + value : from_moz(M.value) + }; + if (M.kind == "init") return new AST_ObjectKeyVal(args); + args.key = new AST_SymbolAccessor({ + name: args.key + }); + args.value = new AST_Accessor(args.value); + if (M.kind == "get") return new AST_ObjectGetter(args); + if (M.kind == "set") return new AST_ObjectSetter(args); + }, + ArrayExpression: function(M) { + return new AST_Array({ + start : my_start_token(M), + end : my_end_token(M), + elements : M.elements.map(function(elem){ + return elem === null ? new AST_Hole() : from_moz(elem); + }) + }); + }, + ObjectExpression: function(M) { + return new AST_Object({ + start : my_start_token(M), + end : my_end_token(M), + properties : M.properties.map(function(prop){ + prop.type = "Property"; + return from_moz(prop) + }) + }); + }, + SequenceExpression: function(M) { + return new AST_Sequence({ + start : my_start_token(M), + end : my_end_token(M), + expressions: M.expressions.map(from_moz) + }); + }, + MemberExpression: function(M) { + return new (M.computed ? AST_Sub : AST_Dot)({ + start : my_start_token(M), + end : my_end_token(M), + property : M.computed ? from_moz(M.property) : M.property.name, + expression : from_moz(M.object) + }); + }, + SwitchCase: function(M) { + return new (M.test ? AST_Case : AST_Default)({ + start : my_start_token(M), + end : my_end_token(M), + expression : from_moz(M.test), + body : M.consequent.map(from_moz) + }); + }, + VariableDeclaration: function(M) { + return new AST_Var({ + start : my_start_token(M), + end : my_end_token(M), + definitions : M.declarations.map(from_moz) + }); + }, + Literal: function(M) { + var val = M.value, args = { + start : my_start_token(M), + end : my_end_token(M) + }; + if (val === null) return new AST_Null(args); + switch (typeof val) { + case "string": + args.value = val; + return new AST_String(args); + case "number": + args.value = val; + return new AST_Number(args); + case "boolean": + return new (val ? AST_True : AST_False)(args); + default: + var rx = M.regex; + if (rx && rx.pattern) { + // RegExpLiteral as per ESTree AST spec + args.value = new RegExp(rx.pattern, rx.flags).toString(); + } else { + // support legacy RegExp + args.value = M.regex && M.raw ? M.raw : val; + } + return new AST_RegExp(args); + } + }, + Identifier: function(M) { + var p = FROM_MOZ_STACK[FROM_MOZ_STACK.length - 2]; + return new ( p.type == "LabeledStatement" ? AST_Label + : p.type == "VariableDeclarator" && p.id === M ? AST_SymbolVar + : p.type == "FunctionExpression" ? (p.id === M ? AST_SymbolLambda : AST_SymbolFunarg) + : p.type == "FunctionDeclaration" ? (p.id === M ? AST_SymbolDefun : AST_SymbolFunarg) + : p.type == "CatchClause" ? AST_SymbolCatch + : p.type == "BreakStatement" || p.type == "ContinueStatement" ? AST_LabelRef + : AST_SymbolRef)({ + start : my_start_token(M), + end : my_end_token(M), + name : M.name + }); + } + }; + + MOZ_TO_ME.UpdateExpression = + MOZ_TO_ME.UnaryExpression = function To_Moz_Unary(M) { + var prefix = "prefix" in M ? M.prefix + : M.type == "UnaryExpression" ? true : false; + return new (prefix ? AST_UnaryPrefix : AST_UnaryPostfix)({ + start : my_start_token(M), + end : my_end_token(M), + operator : M.operator, + expression : from_moz(M.argument) + }); + }; + + map("EmptyStatement", AST_EmptyStatement); + map("BlockStatement", AST_BlockStatement, "body@body"); + map("IfStatement", AST_If, "test>condition, consequent>body, alternate>alternative"); + map("LabeledStatement", AST_LabeledStatement, "label>label, body>body"); + map("BreakStatement", AST_Break, "label>label"); + map("ContinueStatement", AST_Continue, "label>label"); + map("WithStatement", AST_With, "object>expression, body>body"); + map("SwitchStatement", AST_Switch, "discriminant>expression, cases@body"); + map("ReturnStatement", AST_Return, "argument>value"); + map("ThrowStatement", AST_Throw, "argument>value"); + map("WhileStatement", AST_While, "test>condition, body>body"); + map("DoWhileStatement", AST_Do, "test>condition, body>body"); + map("ForStatement", AST_For, "init>init, test>condition, update>step, body>body"); + map("ForInStatement", AST_ForIn, "left>init, right>object, body>body"); + map("DebuggerStatement", AST_Debugger); + map("VariableDeclarator", AST_VarDef, "id>name, init>value"); + map("CatchClause", AST_Catch, "param>argname, body%body"); + + map("ThisExpression", AST_This); + map("BinaryExpression", AST_Binary, "operator=operator, left>left, right>right"); + map("LogicalExpression", AST_Binary, "operator=operator, left>left, right>right"); + map("AssignmentExpression", AST_Assign, "operator=operator, left>left, right>right"); + map("ConditionalExpression", AST_Conditional, "test>condition, consequent>consequent, alternate>alternative"); + map("NewExpression", AST_New, "callee>expression, arguments@args"); + map("CallExpression", AST_Call, "callee>expression, arguments@args"); + + def_to_moz(AST_Toplevel, function To_Moz_Program(M) { + return to_moz_scope("Program", M); + }); + + def_to_moz(AST_Defun, function To_Moz_FunctionDeclaration(M) { + return { + type: "FunctionDeclaration", + id: to_moz(M.name), + params: M.argnames.map(to_moz), + body: to_moz_scope("BlockStatement", M) + } + }); + + def_to_moz(AST_Function, function To_Moz_FunctionExpression(M) { + return { + type: "FunctionExpression", + id: to_moz(M.name), + params: M.argnames.map(to_moz), + body: to_moz_scope("BlockStatement", M) + } + }); + + def_to_moz(AST_Directive, function To_Moz_Directive(M) { + return { + type: "ExpressionStatement", + expression: { + type: "Literal", + value: M.value + } + }; + }); + + def_to_moz(AST_SimpleStatement, function To_Moz_ExpressionStatement(M) { + return { + type: "ExpressionStatement", + expression: to_moz(M.body) + }; + }); + + def_to_moz(AST_SwitchBranch, function To_Moz_SwitchCase(M) { + return { + type: "SwitchCase", + test: to_moz(M.expression), + consequent: M.body.map(to_moz) + }; + }); + + def_to_moz(AST_Try, function To_Moz_TryStatement(M) { + return { + type: "TryStatement", + block: to_moz_block(M), + handler: to_moz(M.bcatch), + guardedHandlers: [], + finalizer: to_moz(M.bfinally) + }; + }); + + def_to_moz(AST_Catch, function To_Moz_CatchClause(M) { + return { + type: "CatchClause", + param: to_moz(M.argname), + guard: null, + body: to_moz_block(M) + }; + }); + + def_to_moz(AST_Definitions, function To_Moz_VariableDeclaration(M) { + return { + type: "VariableDeclaration", + kind: "var", + declarations: M.definitions.map(to_moz) + }; + }); + + def_to_moz(AST_Sequence, function To_Moz_SequenceExpression(M) { + return { + type: "SequenceExpression", + expressions: M.expressions.map(to_moz) + }; + }); + + def_to_moz(AST_PropAccess, function To_Moz_MemberExpression(M) { + var isComputed = M instanceof AST_Sub; + return { + type: "MemberExpression", + object: to_moz(M.expression), + computed: isComputed, + property: isComputed ? to_moz(M.property) : {type: "Identifier", name: M.property} + }; + }); + + def_to_moz(AST_Unary, function To_Moz_Unary(M) { + return { + type: M.operator == "++" || M.operator == "--" ? "UpdateExpression" : "UnaryExpression", + operator: M.operator, + prefix: M instanceof AST_UnaryPrefix, + argument: to_moz(M.expression) + }; + }); + + def_to_moz(AST_Binary, function To_Moz_BinaryExpression(M) { + return { + type: M.operator == "&&" || M.operator == "||" ? "LogicalExpression" : "BinaryExpression", + left: to_moz(M.left), + operator: M.operator, + right: to_moz(M.right) + }; + }); + + def_to_moz(AST_Array, function To_Moz_ArrayExpression(M) { + return { + type: "ArrayExpression", + elements: M.elements.map(to_moz) + }; + }); + + def_to_moz(AST_Object, function To_Moz_ObjectExpression(M) { + return { + type: "ObjectExpression", + properties: M.properties.map(to_moz) + }; + }); + + def_to_moz(AST_ObjectProperty, function To_Moz_Property(M) { + var key = { + type: "Literal", + value: M.key instanceof AST_SymbolAccessor ? M.key.name : M.key + }; + var kind; + if (M instanceof AST_ObjectKeyVal) { + kind = "init"; + } else + if (M instanceof AST_ObjectGetter) { + kind = "get"; + } else + if (M instanceof AST_ObjectSetter) { + kind = "set"; + } + return { + type: "Property", + kind: kind, + key: key, + value: to_moz(M.value) + }; + }); + + def_to_moz(AST_Symbol, function To_Moz_Identifier(M) { + var def = M.definition(); + return { + type: "Identifier", + name: def ? def.mangled_name || def.name : M.name + }; + }); + + def_to_moz(AST_RegExp, function To_Moz_RegExpLiteral(M) { + var value = M.value; + return { + type: "Literal", + value: value, + raw: value.toString(), + regex: { + pattern: value.source, + flags: value.toString().match(/[gimuy]*$/)[0] + } + }; + }); + + def_to_moz(AST_Constant, function To_Moz_Literal(M) { + var value = M.value; + if (typeof value === 'number' && (value < 0 || (value === 0 && 1 / value < 0))) { + return { + type: "UnaryExpression", + operator: "-", + prefix: true, + argument: { + type: "Literal", + value: -value, + raw: M.start.raw + } + }; + } + return { + type: "Literal", + value: value, + raw: M.start.raw + }; + }); + + def_to_moz(AST_Atom, function To_Moz_Atom(M) { + return { + type: "Identifier", + name: String(M.value) + }; + }); + + AST_Boolean.DEFMETHOD("to_mozilla_ast", AST_Constant.prototype.to_mozilla_ast); + AST_Null.DEFMETHOD("to_mozilla_ast", AST_Constant.prototype.to_mozilla_ast); + AST_Hole.DEFMETHOD("to_mozilla_ast", function To_Moz_ArrayHole() { return null }); + + AST_Block.DEFMETHOD("to_mozilla_ast", AST_BlockStatement.prototype.to_mozilla_ast); + AST_Lambda.DEFMETHOD("to_mozilla_ast", AST_Function.prototype.to_mozilla_ast); + + /* -----[ tools ]----- */ + + function raw_token(moznode) { + if (moznode.type == "Literal") { + return moznode.raw != null ? moznode.raw : moznode.value + ""; + } + } + + function my_start_token(moznode) { + var loc = moznode.loc, start = loc && loc.start; + var range = moznode.range; + return new AST_Token({ + file : loc && loc.source, + line : start && start.line, + col : start && start.column, + pos : range ? range[0] : moznode.start, + endline : start && start.line, + endcol : start && start.column, + endpos : range ? range[0] : moznode.start, + raw : raw_token(moznode), + }); + }; + + function my_end_token(moznode) { + var loc = moznode.loc, end = loc && loc.end; + var range = moznode.range; + return new AST_Token({ + file : loc && loc.source, + line : end && end.line, + col : end && end.column, + pos : range ? range[1] : moznode.end, + endline : end && end.line, + endcol : end && end.column, + endpos : range ? range[1] : moznode.end, + raw : raw_token(moznode), + }); + }; + + function map(moztype, mytype, propmap) { + var moz_to_me = "function From_Moz_" + moztype + "(M){\n"; + moz_to_me += "return new U2." + mytype.name + "({\n" + + "start: my_start_token(M),\n" + + "end: my_end_token(M)"; + + var me_to_moz = "function To_Moz_" + moztype + "(M){\n"; + me_to_moz += "return {\n" + + "type: " + JSON.stringify(moztype); + + if (propmap) propmap.split(/\s*,\s*/).forEach(function(prop){ + var m = /([a-z0-9$_]+)(=|@|>|%)([a-z0-9$_]+)/i.exec(prop); + if (!m) throw new Error("Can't understand property map: " + prop); + var moz = m[1], how = m[2], my = m[3]; + moz_to_me += ",\n" + my + ": "; + me_to_moz += ",\n" + moz + ": "; + switch (how) { + case "@": + moz_to_me += "M." + moz + ".map(from_moz)"; + me_to_moz += "M." + my + ".map(to_moz)"; + break; + case ">": + moz_to_me += "from_moz(M." + moz + ")"; + me_to_moz += "to_moz(M." + my + ")"; + break; + case "=": + moz_to_me += "M." + moz; + me_to_moz += "M." + my; + break; + case "%": + moz_to_me += "from_moz(M." + moz + ").body"; + me_to_moz += "to_moz_block(M)"; + break; + default: + throw new Error("Can't understand operator in propmap: " + prop); + } + }); + + moz_to_me += "\n})\n}"; + me_to_moz += "\n}\n}"; + + //moz_to_me = parse(moz_to_me).print_to_string({ beautify: true }); + //me_to_moz = parse(me_to_moz).print_to_string({ beautify: true }); + //console.log(moz_to_me); + + moz_to_me = new Function("U2", "my_start_token", "my_end_token", "from_moz", "return(" + moz_to_me + ")")( + exports, my_start_token, my_end_token, from_moz + ); + me_to_moz = new Function("to_moz", "to_moz_block", "to_moz_scope", "return(" + me_to_moz + ")")( + to_moz, to_moz_block, to_moz_scope + ); + MOZ_TO_ME[moztype] = moz_to_me; + def_to_moz(mytype, me_to_moz); + }; + + var FROM_MOZ_STACK = null; + + function from_moz(node) { + FROM_MOZ_STACK.push(node); + var ret = node != null ? MOZ_TO_ME[node.type](node) : null; + FROM_MOZ_STACK.pop(); + return ret; + }; + + AST_Node.from_mozilla_ast = function(node){ + var save_stack = FROM_MOZ_STACK; + FROM_MOZ_STACK = []; + var ast = from_moz(node); + FROM_MOZ_STACK = save_stack; + return ast; + }; + + function set_moz_loc(mynode, moznode, myparent) { + var start = mynode.start; + var end = mynode.end; + if (start.pos != null && end.endpos != null) { + moznode.range = [start.pos, end.endpos]; + } + if (start.line) { + moznode.loc = { + start: {line: start.line, column: start.col}, + end: end.endline ? {line: end.endline, column: end.endcol} : null + }; + if (start.file) { + moznode.loc.source = start.file; + } + } + return moznode; + }; + + function def_to_moz(mytype, handler) { + mytype.DEFMETHOD("to_mozilla_ast", function() { + return set_moz_loc(this, handler(this)); + }); + }; + + function to_moz(node) { + return node != null ? node.to_mozilla_ast() : null; + }; + + function to_moz_block(node) { + return { + type: "BlockStatement", + body: node.body.map(to_moz) + }; + }; + + function to_moz_scope(type, node) { + var body = node.body.map(to_moz); + if (node.body[0] instanceof AST_SimpleStatement && node.body[0].body instanceof AST_String) { + body.unshift(to_moz(new AST_EmptyStatement(node.body[0]))); + } + return { + type: type, + body: body + }; + }; +})(); diff --git a/node_modules/html-minifier/node_modules/uglify-js/lib/output.js b/node_modules/html-minifier/node_modules/uglify-js/lib/output.js new file mode 100644 index 000000000..4c873f10d --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/lib/output.js @@ -0,0 +1,1441 @@ +/*********************************************************************** + + A JavaScript tokenizer / parser / beautifier / compressor. + https://github.com/mishoo/UglifyJS2 + + -------------------------------- (C) --------------------------------- + + Author: Mihai Bazon + + http://mihai.bazon.net/blog + + Distributed under the BSD license: + + Copyright 2012 (c) Mihai Bazon + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above + copyright notice, this list of conditions and the following + disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + + ***********************************************************************/ + +"use strict"; + +var EXPECT_DIRECTIVE = /^$|[;{][\s\n]*$/; + +function is_some_comments(comment) { + // multiline comment + return comment.type == "comment2" && /@preserve|@license|@cc_on/i.test(comment.value); +} + +function OutputStream(options) { + + options = defaults(options, { + ascii_only : false, + beautify : false, + bracketize : false, + comments : false, + ie8 : false, + indent_level : 4, + indent_start : 0, + inline_script : true, + keep_quoted_props: false, + max_line_len : false, + preamble : null, + preserve_line : false, + quote_keys : false, + quote_style : 0, + semicolons : true, + shebang : true, + source_map : null, + webkit : false, + width : 80, + wrap_iife : false, + }, true); + + // Convert comment option to RegExp if neccessary and set up comments filter + var comment_filter = return_false; // Default case, throw all comments away + if (options.comments) { + var comments = options.comments; + if (typeof options.comments === "string" && /^\/.*\/[a-zA-Z]*$/.test(options.comments)) { + var regex_pos = options.comments.lastIndexOf("/"); + comments = new RegExp( + options.comments.substr(1, regex_pos - 1), + options.comments.substr(regex_pos + 1) + ); + } + if (comments instanceof RegExp) { + comment_filter = function(comment) { + return comment.type != "comment5" && comments.test(comment.value); + }; + } + else if (typeof comments === "function") { + comment_filter = function(comment) { + return comment.type != "comment5" && comments(this, comment); + }; + } + else if (comments === "some") { + comment_filter = is_some_comments; + } else { // NOTE includes "all" option + comment_filter = return_true; + } + } + + var indentation = 0; + var current_col = 0; + var current_line = 1; + var current_pos = 0; + var OUTPUT = ""; + + var to_utf8 = options.ascii_only ? function(str, identifier) { + return str.replace(/[\u0000-\u001f\u007f-\uffff]/g, function(ch) { + var code = ch.charCodeAt(0).toString(16); + if (code.length <= 2 && !identifier) { + while (code.length < 2) code = "0" + code; + return "\\x" + code; + } else { + while (code.length < 4) code = "0" + code; + return "\\u" + code; + } + }); + } : function(str) { + return str.replace(/[\ud800-\udbff](?![\udc00-\udfff])/g, function(ch) { + return "\\u" + ch.charCodeAt(0).toString(16); + }).replace(/(^|[^\ud800-\udbff])([\udc00-\udfff])/g, function(match, prefix, ch) { + return prefix + "\\u" + ch.charCodeAt(0).toString(16); + }); + }; + + function make_string(str, quote) { + var dq = 0, sq = 0; + str = str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g, + function(s, i){ + switch (s) { + case '"': ++dq; return '"'; + case "'": ++sq; return "'"; + case "\\": return "\\\\"; + case "\n": return "\\n"; + case "\r": return "\\r"; + case "\t": return "\\t"; + case "\b": return "\\b"; + case "\f": return "\\f"; + case "\x0B": return options.ie8 ? "\\x0B" : "\\v"; + case "\u2028": return "\\u2028"; + case "\u2029": return "\\u2029"; + case "\ufeff": return "\\ufeff"; + case "\0": + return /[0-7]/.test(str.charAt(i+1)) ? "\\x00" : "\\0"; + } + return s; + }); + function quote_single() { + return "'" + str.replace(/\x27/g, "\\'") + "'"; + } + function quote_double() { + return '"' + str.replace(/\x22/g, '\\"') + '"'; + } + str = to_utf8(str); + switch (options.quote_style) { + case 1: + return quote_single(); + case 2: + return quote_double(); + case 3: + return quote == "'" ? quote_single() : quote_double(); + default: + return dq > sq ? quote_single() : quote_double(); + } + }; + + function encode_string(str, quote) { + var ret = make_string(str, quote); + if (options.inline_script) { + ret = ret.replace(/<\x2fscript([>\/\t\n\f\r ])/gi, "<\\/script$1"); + ret = ret.replace(/\x3c!--/g, "\\x3c!--"); + ret = ret.replace(/--\x3e/g, "--\\x3e"); + } + return ret; + }; + + function make_name(name) { + name = name.toString(); + name = to_utf8(name, true); + return name; + }; + + function make_indent(back) { + return repeat_string(" ", options.indent_start + indentation - back * options.indent_level); + }; + + /* -----[ beautification/minification ]----- */ + + var might_need_space = false; + var might_need_semicolon = false; + var might_add_newline = 0; + var last = ""; + var mapping_token, mapping_name, mappings = options.source_map && []; + + var do_add_mapping = mappings ? function() { + mappings.forEach(function(mapping) { + try { + options.source_map.add( + mapping.token.file, + mapping.line, mapping.col, + mapping.token.line, mapping.token.col, + !mapping.name && mapping.token.type == "name" ? mapping.token.value : mapping.name + ); + } catch(ex) { + AST_Node.warn("Couldn't figure out mapping for {file}:{line},{col} → {cline},{ccol} [{name}]", { + file: mapping.token.file, + line: mapping.token.line, + col: mapping.token.col, + cline: mapping.line, + ccol: mapping.col, + name: mapping.name || "" + }) + } + }); + mappings = []; + } : noop; + + var ensure_line_len = options.max_line_len ? function() { + if (current_col > options.max_line_len) { + if (might_add_newline) { + var left = OUTPUT.slice(0, might_add_newline); + var right = OUTPUT.slice(might_add_newline); + if (mappings) { + var delta = right.length - current_col; + mappings.forEach(function(mapping) { + mapping.line++; + mapping.col += delta; + }); + } + OUTPUT = left + "\n" + right; + current_line++; + current_pos++; + current_col = right.length; + } + if (current_col > options.max_line_len) { + AST_Node.warn("Output exceeds {max_line_len} characters", options); + } + } + if (might_add_newline) { + might_add_newline = 0; + do_add_mapping(); + } + } : noop; + + var requireSemicolonChars = makePredicate("( [ + * / - , ."); + + function print(str) { + str = String(str); + var ch = str.charAt(0); + var prev = last.charAt(last.length - 1); + if (might_need_semicolon) { + might_need_semicolon = false; + + if (prev == ":" && ch == "}" || (!ch || ";}".indexOf(ch) < 0) && prev != ";") { + if (options.semicolons || requireSemicolonChars(ch)) { + OUTPUT += ";"; + current_col++; + current_pos++; + } else { + ensure_line_len(); + OUTPUT += "\n"; + current_pos++; + current_line++; + current_col = 0; + + if (/^\s+$/.test(str)) { + // reset the semicolon flag, since we didn't print one + // now and might still have to later + might_need_semicolon = true; + } + } + + if (!options.beautify) + might_need_space = false; + } + } + + if (!options.beautify && options.preserve_line && stack[stack.length - 1]) { + var target_line = stack[stack.length - 1].start.line; + while (current_line < target_line) { + ensure_line_len(); + OUTPUT += "\n"; + current_pos++; + current_line++; + current_col = 0; + might_need_space = false; + } + } + + if (might_need_space) { + if ((is_identifier_char(prev) + && (is_identifier_char(ch) || ch == "\\")) + || (ch == "/" && ch == prev) + || ((ch == "+" || ch == "-") && ch == last)) + { + OUTPUT += " "; + current_col++; + current_pos++; + } + might_need_space = false; + } + + if (mapping_token) { + mappings.push({ + token: mapping_token, + name: mapping_name, + line: current_line, + col: current_col + }); + mapping_token = false; + if (!might_add_newline) do_add_mapping(); + } + + OUTPUT += str; + current_pos += str.length; + var a = str.split(/\r?\n/), n = a.length - 1; + current_line += n; + current_col += a[0].length; + if (n > 0) { + ensure_line_len(); + current_col = a[n].length; + } + last = str; + }; + + var space = options.beautify ? function() { + print(" "); + } : function() { + might_need_space = true; + }; + + var indent = options.beautify ? function(half) { + if (options.beautify) { + print(make_indent(half ? 0.5 : 0)); + } + } : noop; + + var with_indent = options.beautify ? function(col, cont) { + if (col === true) col = next_indent(); + var save_indentation = indentation; + indentation = col; + var ret = cont(); + indentation = save_indentation; + return ret; + } : function(col, cont) { return cont() }; + + var newline = options.beautify ? function() { + print("\n"); + } : options.max_line_len ? function() { + ensure_line_len(); + might_add_newline = OUTPUT.length; + } : noop; + + var semicolon = options.beautify ? function() { + print(";"); + } : function() { + might_need_semicolon = true; + }; + + function force_semicolon() { + might_need_semicolon = false; + print(";"); + }; + + function next_indent() { + return indentation + options.indent_level; + }; + + function with_block(cont) { + var ret; + print("{"); + newline(); + with_indent(next_indent(), function(){ + ret = cont(); + }); + indent(); + print("}"); + return ret; + }; + + function with_parens(cont) { + print("("); + //XXX: still nice to have that for argument lists + //var ret = with_indent(current_col, cont); + var ret = cont(); + print(")"); + return ret; + }; + + function with_square(cont) { + print("["); + //var ret = with_indent(current_col, cont); + var ret = cont(); + print("]"); + return ret; + }; + + function comma() { + print(","); + space(); + }; + + function colon() { + print(":"); + space(); + }; + + var add_mapping = mappings ? function(token, name) { + mapping_token = token; + mapping_name = name; + } : noop; + + function get() { + if (might_add_newline) { + ensure_line_len(); + } + return OUTPUT; + }; + + var stack = []; + return { + get : get, + toString : get, + indent : indent, + indentation : function() { return indentation }, + current_width : function() { return current_col - indentation }, + should_break : function() { return options.width && this.current_width() >= options.width }, + newline : newline, + print : print, + space : space, + comma : comma, + colon : colon, + last : function() { return last }, + semicolon : semicolon, + force_semicolon : force_semicolon, + to_utf8 : to_utf8, + print_name : function(name) { print(make_name(name)) }, + print_string : function(str, quote, escape_directive) { + var encoded = encode_string(str, quote); + if (escape_directive === true && encoded.indexOf("\\") === -1) { + // Insert semicolons to break directive prologue + if (!EXPECT_DIRECTIVE.test(OUTPUT)) { + force_semicolon(); + } + force_semicolon(); + } + print(encoded); + }, + encode_string : encode_string, + next_indent : next_indent, + with_indent : with_indent, + with_block : with_block, + with_parens : with_parens, + with_square : with_square, + add_mapping : add_mapping, + option : function(opt) { return options[opt] }, + comment_filter : comment_filter, + line : function() { return current_line }, + col : function() { return current_col }, + pos : function() { return current_pos }, + push_node : function(node) { stack.push(node) }, + pop_node : function() { return stack.pop() }, + parent : function(n) { + return stack[stack.length - 2 - (n || 0)]; + } + }; + +}; + +/* -----[ code generators ]----- */ + +(function(){ + + /* -----[ utils ]----- */ + + function DEFPRINT(nodetype, generator) { + nodetype.DEFMETHOD("_codegen", generator); + }; + + var use_asm = false; + var in_directive = false; + + AST_Node.DEFMETHOD("print", function(stream, force_parens){ + var self = this, generator = self._codegen, prev_use_asm = use_asm; + if (self instanceof AST_Directive && self.value == "use asm" && stream.parent() instanceof AST_Scope) { + use_asm = true; + } + function doit() { + self.add_comments(stream); + self.add_source_map(stream); + generator(self, stream); + } + stream.push_node(self); + if (force_parens || self.needs_parens(stream)) { + stream.with_parens(doit); + } else { + doit(); + } + stream.pop_node(); + if (self instanceof AST_Scope) { + use_asm = prev_use_asm; + } + }); + AST_Node.DEFMETHOD("_print", AST_Node.prototype.print); + + AST_Node.DEFMETHOD("print_to_string", function(options){ + var s = OutputStream(options); + if (!options) s._readonly = true; + this.print(s); + return s.get(); + }); + + /* -----[ comments ]----- */ + + AST_Node.DEFMETHOD("add_comments", function(output){ + if (output._readonly) return; + var self = this; + var start = self.start; + if (start && !start._comments_dumped) { + start._comments_dumped = true; + var comments = start.comments_before || []; + + // XXX: ugly fix for https://github.com/mishoo/UglifyJS2/issues/112 + // and https://github.com/mishoo/UglifyJS2/issues/372 + if (self instanceof AST_Exit && self.value) { + self.value.walk(new TreeWalker(function(node){ + if (node.start && node.start.comments_before) { + comments = comments.concat(node.start.comments_before); + node.start.comments_before = []; + } + if (node instanceof AST_Function || + node instanceof AST_Array || + node instanceof AST_Object) + { + return true; // don't go inside. + } + })); + } + + if (output.pos() == 0) { + if (comments.length > 0 && output.option("shebang") && comments[0].type == "comment5") { + output.print("#!" + comments.shift().value + "\n"); + output.indent(); + } + var preamble = output.option("preamble"); + if (preamble) { + output.print(preamble.replace(/\r\n?|[\n\u2028\u2029]|\s*$/g, "\n")); + } + } + + comments = comments.filter(output.comment_filter, self); + + // Keep single line comments after nlb, after nlb + if (!output.option("beautify") && comments.length > 0 && + /comment[134]/.test(comments[0].type) && + output.col() !== 0 && comments[0].nlb) + { + output.print("\n"); + } + + comments.forEach(function(c){ + if (/comment[134]/.test(c.type)) { + output.print("//" + c.value + "\n"); + output.indent(); + } + else if (c.type == "comment2") { + output.print("/*" + c.value + "*/"); + if (start.nlb) { + output.print("\n"); + output.indent(); + } else { + output.space(); + } + } + }); + } + }); + + /* -----[ PARENTHESES ]----- */ + + function PARENS(nodetype, func) { + if (Array.isArray(nodetype)) { + nodetype.forEach(function(nodetype){ + PARENS(nodetype, func); + }); + } else { + nodetype.DEFMETHOD("needs_parens", func); + } + }; + + PARENS(AST_Node, function(){ + return false; + }); + + // a function expression needs parens around it when it's provably + // the first token to appear in a statement. + PARENS(AST_Function, function(output){ + if (first_in_statement(output)) { + return true; + } + + if (output.option('webkit')) { + var p = output.parent(); + if (p instanceof AST_PropAccess && p.expression === this) { + return true; + } + } + + if (output.option('wrap_iife')) { + var p = output.parent(); + return p instanceof AST_Call && p.expression === this; + } + + return false; + }); + + // same goes for an object literal, because otherwise it would be + // interpreted as a block of code. + PARENS(AST_Object, function(output){ + return first_in_statement(output); + }); + + PARENS(AST_Unary, function(output){ + var p = output.parent(); + return p instanceof AST_PropAccess && p.expression === this + || p instanceof AST_Call && p.expression === this; + }); + + PARENS(AST_Sequence, function(output){ + var p = output.parent(); + return p instanceof AST_Call // (foo, bar)() or foo(1, (2, 3), 4) + || p instanceof AST_Unary // !(foo, bar, baz) + || p instanceof AST_Binary // 1 + (2, 3) + 4 ==> 8 + || p instanceof AST_VarDef // var a = (1, 2), b = a + a; ==> b == 4 + || p instanceof AST_PropAccess // (1, {foo:2}).foo or (1, {foo:2})["foo"] ==> 2 + || p instanceof AST_Array // [ 1, (2, 3), 4 ] ==> [ 1, 3, 4 ] + || p instanceof AST_ObjectProperty // { foo: (1, 2) }.foo ==> 2 + || p instanceof AST_Conditional /* (false, true) ? (a = 10, b = 20) : (c = 30) + * ==> 20 (side effect, set a := 10 and b := 20) */ + ; + }); + + PARENS(AST_Binary, function(output){ + var p = output.parent(); + // (foo && bar)() + if (p instanceof AST_Call && p.expression === this) + return true; + // typeof (foo && bar) + if (p instanceof AST_Unary) + return true; + // (foo && bar)["prop"], (foo && bar).prop + if (p instanceof AST_PropAccess && p.expression === this) + return true; + // this deals with precedence: 3 * (2 + 1) + if (p instanceof AST_Binary) { + var po = p.operator, pp = PRECEDENCE[po]; + var so = this.operator, sp = PRECEDENCE[so]; + if (pp > sp + || (pp == sp + && this === p.right)) { + return true; + } + } + }); + + PARENS(AST_PropAccess, function(output){ + var p = output.parent(); + if (p instanceof AST_New && p.expression === this) { + // i.e. new (foo.bar().baz) + // + // if there's one call into this subtree, then we need + // parens around it too, otherwise the call will be + // interpreted as passing the arguments to the upper New + // expression. + var parens = false; + this.walk(new TreeWalker(function(node) { + if (parens || node instanceof AST_Scope) return true; + if (node instanceof AST_Call) { + parens = true; + return true; + } + })); + return parens; + } + }); + + PARENS(AST_Call, function(output){ + var p = output.parent(), p1; + if (p instanceof AST_New && p.expression === this) + return true; + + // workaround for Safari bug. + // https://bugs.webkit.org/show_bug.cgi?id=123506 + return this.expression instanceof AST_Function + && p instanceof AST_PropAccess + && p.expression === this + && (p1 = output.parent(1)) instanceof AST_Assign + && p1.left === p; + }); + + PARENS(AST_New, function(output){ + var p = output.parent(); + if (!need_constructor_parens(this, output) + && (p instanceof AST_PropAccess // (new Date).getTime(), (new Date)["getTime"]() + || p instanceof AST_Call && p.expression === this)) // (new foo)(bar) + return true; + }); + + PARENS(AST_Number, function(output){ + var p = output.parent(); + if (p instanceof AST_PropAccess && p.expression === this) { + var value = this.getValue(); + if (value < 0 || /^0/.test(make_num(value))) { + return true; + } + } + }); + + PARENS([ AST_Assign, AST_Conditional ], function(output){ + var p = output.parent(); + // !(a = false) → true + if (p instanceof AST_Unary) + return true; + // 1 + (a = 2) + 3 → 6, side effect setting a = 2 + if (p instanceof AST_Binary && !(p instanceof AST_Assign)) + return true; + // (a = func)() —or— new (a = Object)() + if (p instanceof AST_Call && p.expression === this) + return true; + // (a = foo) ? bar : baz + if (p instanceof AST_Conditional && p.condition === this) + return true; + // (a = foo)["prop"] —or— (a = foo).prop + if (p instanceof AST_PropAccess && p.expression === this) + return true; + }); + + /* -----[ PRINTERS ]----- */ + + DEFPRINT(AST_Directive, function(self, output){ + output.print_string(self.value, self.quote); + output.semicolon(); + }); + DEFPRINT(AST_Debugger, function(self, output){ + output.print("debugger"); + output.semicolon(); + }); + + /* -----[ statements ]----- */ + + function display_body(body, is_toplevel, output, allow_directives) { + var last = body.length - 1; + in_directive = allow_directives; + body.forEach(function(stmt, i){ + if (in_directive === true && !(stmt instanceof AST_Directive || + stmt instanceof AST_EmptyStatement || + (stmt instanceof AST_SimpleStatement && stmt.body instanceof AST_String) + )) { + in_directive = false; + } + if (!(stmt instanceof AST_EmptyStatement)) { + output.indent(); + stmt.print(output); + if (!(i == last && is_toplevel)) { + output.newline(); + if (is_toplevel) output.newline(); + } + } + if (in_directive === true && + stmt instanceof AST_SimpleStatement && + stmt.body instanceof AST_String + ) { + in_directive = false; + } + }); + in_directive = false; + }; + + AST_StatementWithBody.DEFMETHOD("_do_print_body", function(output){ + force_statement(this.body, output); + }); + + DEFPRINT(AST_Statement, function(self, output){ + self.body.print(output); + output.semicolon(); + }); + DEFPRINT(AST_Toplevel, function(self, output){ + display_body(self.body, true, output, true); + output.print(""); + }); + DEFPRINT(AST_LabeledStatement, function(self, output){ + self.label.print(output); + output.colon(); + self.body.print(output); + }); + DEFPRINT(AST_SimpleStatement, function(self, output){ + self.body.print(output); + output.semicolon(); + }); + function print_bracketed(body, output, allow_directives) { + if (body.length > 0) output.with_block(function(){ + display_body(body, false, output, allow_directives); + }); + else output.print("{}"); + }; + DEFPRINT(AST_BlockStatement, function(self, output){ + print_bracketed(self.body, output); + }); + DEFPRINT(AST_EmptyStatement, function(self, output){ + output.semicolon(); + }); + DEFPRINT(AST_Do, function(self, output){ + output.print("do"); + output.space(); + make_block(self.body, output); + output.space(); + output.print("while"); + output.space(); + output.with_parens(function(){ + self.condition.print(output); + }); + output.semicolon(); + }); + DEFPRINT(AST_While, function(self, output){ + output.print("while"); + output.space(); + output.with_parens(function(){ + self.condition.print(output); + }); + output.space(); + self._do_print_body(output); + }); + DEFPRINT(AST_For, function(self, output){ + output.print("for"); + output.space(); + output.with_parens(function(){ + if (self.init) { + if (self.init instanceof AST_Definitions) { + self.init.print(output); + } else { + parenthesize_for_noin(self.init, output, true); + } + output.print(";"); + output.space(); + } else { + output.print(";"); + } + if (self.condition) { + self.condition.print(output); + output.print(";"); + output.space(); + } else { + output.print(";"); + } + if (self.step) { + self.step.print(output); + } + }); + output.space(); + self._do_print_body(output); + }); + DEFPRINT(AST_ForIn, function(self, output){ + output.print("for"); + output.space(); + output.with_parens(function(){ + self.init.print(output); + output.space(); + output.print("in"); + output.space(); + self.object.print(output); + }); + output.space(); + self._do_print_body(output); + }); + DEFPRINT(AST_With, function(self, output){ + output.print("with"); + output.space(); + output.with_parens(function(){ + self.expression.print(output); + }); + output.space(); + self._do_print_body(output); + }); + + /* -----[ functions ]----- */ + AST_Lambda.DEFMETHOD("_do_print", function(output, nokeyword){ + var self = this; + if (!nokeyword) { + output.print("function"); + } + if (self.name) { + output.space(); + self.name.print(output); + } + output.with_parens(function(){ + self.argnames.forEach(function(arg, i){ + if (i) output.comma(); + arg.print(output); + }); + }); + output.space(); + print_bracketed(self.body, output, true); + }); + DEFPRINT(AST_Lambda, function(self, output){ + self._do_print(output); + }); + + /* -----[ exits ]----- */ + AST_Exit.DEFMETHOD("_do_print", function(output, kind){ + output.print(kind); + if (this.value) { + output.space(); + this.value.print(output); + } + output.semicolon(); + }); + DEFPRINT(AST_Return, function(self, output){ + self._do_print(output, "return"); + }); + DEFPRINT(AST_Throw, function(self, output){ + self._do_print(output, "throw"); + }); + + /* -----[ loop control ]----- */ + AST_LoopControl.DEFMETHOD("_do_print", function(output, kind){ + output.print(kind); + if (this.label) { + output.space(); + this.label.print(output); + } + output.semicolon(); + }); + DEFPRINT(AST_Break, function(self, output){ + self._do_print(output, "break"); + }); + DEFPRINT(AST_Continue, function(self, output){ + self._do_print(output, "continue"); + }); + + /* -----[ if ]----- */ + function make_then(self, output) { + var b = self.body; + if (output.option("bracketize") + || output.option("ie8") && b instanceof AST_Do) + return make_block(b, output); + // The squeezer replaces "block"-s that contain only a single + // statement with the statement itself; technically, the AST + // is correct, but this can create problems when we output an + // IF having an ELSE clause where the THEN clause ends in an + // IF *without* an ELSE block (then the outer ELSE would refer + // to the inner IF). This function checks for this case and + // adds the block brackets if needed. + if (!b) return output.force_semicolon(); + while (true) { + if (b instanceof AST_If) { + if (!b.alternative) { + make_block(self.body, output); + return; + } + b = b.alternative; + } + else if (b instanceof AST_StatementWithBody) { + b = b.body; + } + else break; + } + force_statement(self.body, output); + }; + DEFPRINT(AST_If, function(self, output){ + output.print("if"); + output.space(); + output.with_parens(function(){ + self.condition.print(output); + }); + output.space(); + if (self.alternative) { + make_then(self, output); + output.space(); + output.print("else"); + output.space(); + if (self.alternative instanceof AST_If) + self.alternative.print(output); + else + force_statement(self.alternative, output); + } else { + self._do_print_body(output); + } + }); + + /* -----[ switch ]----- */ + DEFPRINT(AST_Switch, function(self, output){ + output.print("switch"); + output.space(); + output.with_parens(function(){ + self.expression.print(output); + }); + output.space(); + var last = self.body.length - 1; + if (last < 0) output.print("{}"); + else output.with_block(function(){ + self.body.forEach(function(branch, i){ + output.indent(true); + branch.print(output); + if (i < last && branch.body.length > 0) + output.newline(); + }); + }); + }); + AST_SwitchBranch.DEFMETHOD("_do_print_body", function(output){ + output.newline(); + this.body.forEach(function(stmt){ + output.indent(); + stmt.print(output); + output.newline(); + }); + }); + DEFPRINT(AST_Default, function(self, output){ + output.print("default:"); + self._do_print_body(output); + }); + DEFPRINT(AST_Case, function(self, output){ + output.print("case"); + output.space(); + self.expression.print(output); + output.print(":"); + self._do_print_body(output); + }); + + /* -----[ exceptions ]----- */ + DEFPRINT(AST_Try, function(self, output){ + output.print("try"); + output.space(); + print_bracketed(self.body, output); + if (self.bcatch) { + output.space(); + self.bcatch.print(output); + } + if (self.bfinally) { + output.space(); + self.bfinally.print(output); + } + }); + DEFPRINT(AST_Catch, function(self, output){ + output.print("catch"); + output.space(); + output.with_parens(function(){ + self.argname.print(output); + }); + output.space(); + print_bracketed(self.body, output); + }); + DEFPRINT(AST_Finally, function(self, output){ + output.print("finally"); + output.space(); + print_bracketed(self.body, output); + }); + + /* -----[ var/const ]----- */ + AST_Definitions.DEFMETHOD("_do_print", function(output, kind){ + output.print(kind); + output.space(); + this.definitions.forEach(function(def, i){ + if (i) output.comma(); + def.print(output); + }); + var p = output.parent(); + var in_for = p instanceof AST_For || p instanceof AST_ForIn; + var avoid_semicolon = in_for && p.init === this; + if (!avoid_semicolon) + output.semicolon(); + }); + DEFPRINT(AST_Var, function(self, output){ + self._do_print(output, "var"); + }); + + function parenthesize_for_noin(node, output, noin) { + var parens = false; + // need to take some precautions here: + // https://github.com/mishoo/UglifyJS2/issues/60 + if (noin) node.walk(new TreeWalker(function(node) { + if (parens || node instanceof AST_Scope) return true; + if (node instanceof AST_Binary && node.operator == "in") { + parens = true; + return true; + } + })); + node.print(output, parens); + }; + + DEFPRINT(AST_VarDef, function(self, output){ + self.name.print(output); + if (self.value) { + output.space(); + output.print("="); + output.space(); + var p = output.parent(1); + var noin = p instanceof AST_For || p instanceof AST_ForIn; + parenthesize_for_noin(self.value, output, noin); + } + }); + + /* -----[ other expressions ]----- */ + DEFPRINT(AST_Call, function(self, output){ + self.expression.print(output); + if (self instanceof AST_New && !need_constructor_parens(self, output)) + return; + if (self.expression instanceof AST_Lambda) { + output.add_mapping(self.start); + } + output.with_parens(function(){ + self.args.forEach(function(expr, i){ + if (i) output.comma(); + expr.print(output); + }); + }); + }); + DEFPRINT(AST_New, function(self, output){ + output.print("new"); + output.space(); + AST_Call.prototype._codegen(self, output); + }); + + AST_Sequence.DEFMETHOD("_do_print", function(output){ + this.expressions.forEach(function(node, index) { + if (index > 0) { + output.comma(); + if (output.should_break()) { + output.newline(); + output.indent(); + } + } + node.print(output); + }); + }); + DEFPRINT(AST_Sequence, function(self, output){ + self._do_print(output); + // var p = output.parent(); + // if (p instanceof AST_Statement) { + // output.with_indent(output.next_indent(), function(){ + // self._do_print(output); + // }); + // } else { + // self._do_print(output); + // } + }); + DEFPRINT(AST_Dot, function(self, output){ + var expr = self.expression; + expr.print(output); + var prop = self.property; + if (output.option("ie8") && RESERVED_WORDS(prop)) { + output.print("["); + output.add_mapping(self.end); + output.print_string(prop); + output.print("]"); + } else { + if (expr instanceof AST_Number && expr.getValue() >= 0) { + if (!/[xa-f.)]/i.test(output.last())) { + output.print("."); + } + } + output.print("."); + // the name after dot would be mapped about here. + output.add_mapping(self.end); + output.print_name(prop); + } + }); + DEFPRINT(AST_Sub, function(self, output){ + self.expression.print(output); + output.print("["); + self.property.print(output); + output.print("]"); + }); + DEFPRINT(AST_UnaryPrefix, function(self, output){ + var op = self.operator; + output.print(op); + if (/^[a-z]/i.test(op) + || (/[+-]$/.test(op) + && self.expression instanceof AST_UnaryPrefix + && /^[+-]/.test(self.expression.operator))) { + output.space(); + } + self.expression.print(output); + }); + DEFPRINT(AST_UnaryPostfix, function(self, output){ + self.expression.print(output); + output.print(self.operator); + }); + DEFPRINT(AST_Binary, function(self, output){ + var op = self.operator; + self.left.print(output); + if (op[0] == ">" /* ">>" ">>>" ">" ">=" */ + && self.left instanceof AST_UnaryPostfix + && self.left.operator == "--") { + // space is mandatory to avoid outputting --> + output.print(" "); + } else { + // the space is optional depending on "beautify" + output.space(); + } + output.print(op); + if ((op == "<" || op == "<<") + && self.right instanceof AST_UnaryPrefix + && self.right.operator == "!" + && self.right.expression instanceof AST_UnaryPrefix + && self.right.expression.operator == "--") { + // space is mandatory to avoid outputting ") && S.newline_before) { + forward(3); + skip_line_comment("comment4"); + continue; + } + } + var ch = peek(); + if (!ch) return token("eof"); + var code = ch.charCodeAt(0); + switch (code) { + case 34: case 39: return read_string(ch); + case 46: return handle_dot(); + case 47: { + var tok = handle_slash(); + if (tok === next_token) continue; + return tok; + } + } + if (is_digit(code)) return read_num(); + if (PUNC_CHARS(ch)) return token("punc", next()); + if (OPERATOR_CHARS(ch)) return read_operator(); + if (code == 92 || is_identifier_start(code)) return read_word(); + break; + } + parse_error("Unexpected character '" + ch + "'"); + }; + + next_token.context = function(nc) { + if (nc) S = nc; + return S; + }; + + next_token.add_directive = function(directive) { + S.directive_stack[S.directive_stack.length - 1].push(directive); + + if (S.directives[directive] === undefined) { + S.directives[directive] = 1; + } else { + S.directives[directive]++; + } + } + + next_token.push_directives_stack = function() { + S.directive_stack.push([]); + } + + next_token.pop_directives_stack = function() { + var directives = S.directive_stack[S.directive_stack.length - 1]; + + for (var i = 0; i < directives.length; i++) { + S.directives[directives[i]]--; + } + + S.directive_stack.pop(); + } + + next_token.has_directive = function(directive) { + return S.directives[directive] > 0; + } + + return next_token; + +}; + +/* -----[ Parser (constants) ]----- */ + +var UNARY_PREFIX = makePredicate([ + "typeof", + "void", + "delete", + "--", + "++", + "!", + "~", + "-", + "+" +]); + +var UNARY_POSTFIX = makePredicate([ "--", "++" ]); + +var ASSIGNMENT = makePredicate([ "=", "+=", "-=", "/=", "*=", "%=", ">>=", "<<=", ">>>=", "|=", "^=", "&=" ]); + +var PRECEDENCE = (function(a, ret){ + for (var i = 0; i < a.length; ++i) { + var b = a[i]; + for (var j = 0; j < b.length; ++j) { + ret[b[j]] = i + 1; + } + } + return ret; +})( + [ + ["||"], + ["&&"], + ["|"], + ["^"], + ["&"], + ["==", "===", "!=", "!=="], + ["<", ">", "<=", ">=", "in", "instanceof"], + [">>", "<<", ">>>"], + ["+", "-"], + ["*", "/", "%"] + ], + {} +); + +var ATOMIC_START_TOKEN = makePredicate([ "atom", "num", "string", "regexp", "name" ]); + +/* -----[ Parser ]----- */ + +function parse($TEXT, options) { + + options = defaults(options, { + bare_returns : false, + expression : false, + filename : null, + html5_comments : true, + shebang : true, + strict : false, + toplevel : null, + }, true); + + var S = { + input : (typeof $TEXT == "string" + ? tokenizer($TEXT, options.filename, + options.html5_comments, options.shebang) + : $TEXT), + token : null, + prev : null, + peeked : null, + in_function : 0, + in_directives : true, + in_loop : 0, + labels : [] + }; + + S.token = next(); + + function is(type, value) { + return is_token(S.token, type, value); + }; + + function peek() { return S.peeked || (S.peeked = S.input()); }; + + function next() { + S.prev = S.token; + if (S.peeked) { + S.token = S.peeked; + S.peeked = null; + } else { + S.token = S.input(); + } + S.in_directives = S.in_directives && ( + S.token.type == "string" || is("punc", ";") + ); + return S.token; + }; + + function prev() { + return S.prev; + }; + + function croak(msg, line, col, pos) { + var ctx = S.input.context(); + js_error(msg, + ctx.filename, + line != null ? line : ctx.tokline, + col != null ? col : ctx.tokcol, + pos != null ? pos : ctx.tokpos); + }; + + function token_error(token, msg) { + croak(msg, token.line, token.col); + }; + + function unexpected(token) { + if (token == null) + token = S.token; + token_error(token, "Unexpected token: " + token.type + " (" + token.value + ")"); + }; + + function expect_token(type, val) { + if (is(type, val)) { + return next(); + } + token_error(S.token, "Unexpected token " + S.token.type + " «" + S.token.value + "»" + ", expected " + type + " «" + val + "»"); + }; + + function expect(punc) { return expect_token("punc", punc); }; + + function can_insert_semicolon() { + return !options.strict && ( + S.token.nlb || is("eof") || is("punc", "}") + ); + }; + + function semicolon(optional) { + if (is("punc", ";")) next(); + else if (!optional && !can_insert_semicolon()) unexpected(); + }; + + function parenthesised() { + expect("("); + var exp = expression(true); + expect(")"); + return exp; + }; + + function embed_tokens(parser) { + return function() { + var start = S.token; + var expr = parser(); + var end = prev(); + expr.start = start; + expr.end = end; + return expr; + }; + }; + + function handle_regexp() { + if (is("operator", "/") || is("operator", "/=")) { + S.peeked = null; + S.token = S.input(S.token.value.substr(1)); // force regexp + } + }; + + var statement = embed_tokens(function() { + handle_regexp(); + switch (S.token.type) { + case "string": + if (S.in_directives) { + var token = peek(); + if (S.token.raw.indexOf("\\") == -1 + && (token.nlb + || is_token(token, "eof") + || is_token(token, "punc", ";") + || is_token(token, "punc", "}"))) { + S.input.add_directive(S.token.value); + } else { + S.in_directives = false; + } + } + var dir = S.in_directives, stat = simple_statement(); + return dir ? new AST_Directive(stat.body) : stat; + case "num": + case "regexp": + case "operator": + case "atom": + return simple_statement(); + + case "name": + return is_token(peek(), "punc", ":") + ? labeled_statement() + : simple_statement(); + + case "punc": + switch (S.token.value) { + case "{": + return new AST_BlockStatement({ + start : S.token, + body : block_(), + end : prev() + }); + case "[": + case "(": + return simple_statement(); + case ";": + S.in_directives = false; + next(); + return new AST_EmptyStatement(); + default: + unexpected(); + } + + case "keyword": + switch (S.token.value) { + case "break": + next(); + return break_cont(AST_Break); + + case "continue": + next(); + return break_cont(AST_Continue); + + case "debugger": + next(); + semicolon(); + return new AST_Debugger(); + + case "do": + next(); + var body = in_loop(statement); + expect_token("keyword", "while"); + var condition = parenthesised(); + semicolon(true); + return new AST_Do({ + body : body, + condition : condition + }); + + case "while": + next(); + return new AST_While({ + condition : parenthesised(), + body : in_loop(statement) + }); + + case "for": + next(); + return for_(); + + case "function": + next(); + return function_(AST_Defun); + + case "if": + next(); + return if_(); + + case "return": + if (S.in_function == 0 && !options.bare_returns) + croak("'return' outside of function"); + next(); + var value = null; + if (is("punc", ";")) { + next(); + } else if (!can_insert_semicolon()) { + value = expression(true); + semicolon(); + } + return new AST_Return({ + value: value + }); + + case "switch": + next(); + return new AST_Switch({ + expression : parenthesised(), + body : in_loop(switch_body_) + }); + + case "throw": + next(); + if (S.token.nlb) + croak("Illegal newline after 'throw'"); + var value = expression(true); + semicolon(); + return new AST_Throw({ + value: value + }); + + case "try": + next(); + return try_(); + + case "var": + next(); + var node = var_(); + semicolon(); + return node; + + case "with": + if (S.input.has_directive("use strict")) { + croak("Strict mode may not include a with statement"); + } + next(); + return new AST_With({ + expression : parenthesised(), + body : statement() + }); + } + } + unexpected(); + }); + + function labeled_statement() { + var label = as_symbol(AST_Label); + if (find_if(function(l){ return l.name == label.name }, S.labels)) { + // ECMA-262, 12.12: An ECMAScript program is considered + // syntactically incorrect if it contains a + // LabelledStatement that is enclosed by a + // LabelledStatement with the same Identifier as label. + croak("Label " + label.name + " defined twice"); + } + expect(":"); + S.labels.push(label); + var stat = statement(); + S.labels.pop(); + if (!(stat instanceof AST_IterationStatement)) { + // check for `continue` that refers to this label. + // those should be reported as syntax errors. + // https://github.com/mishoo/UglifyJS2/issues/287 + label.references.forEach(function(ref){ + if (ref instanceof AST_Continue) { + ref = ref.label.start; + croak("Continue label `" + label.name + "` refers to non-IterationStatement.", + ref.line, ref.col, ref.pos); + } + }); + } + return new AST_LabeledStatement({ body: stat, label: label }); + }; + + function simple_statement(tmp) { + return new AST_SimpleStatement({ body: (tmp = expression(true), semicolon(), tmp) }); + }; + + function break_cont(type) { + var label = null, ldef; + if (!can_insert_semicolon()) { + label = as_symbol(AST_LabelRef, true); + } + if (label != null) { + ldef = find_if(function(l){ return l.name == label.name }, S.labels); + if (!ldef) + croak("Undefined label " + label.name); + label.thedef = ldef; + } + else if (S.in_loop == 0) + croak(type.TYPE + " not inside a loop or switch"); + semicolon(); + var stat = new type({ label: label }); + if (ldef) ldef.references.push(stat); + return stat; + }; + + function for_() { + expect("("); + var init = null; + if (!is("punc", ";")) { + init = is("keyword", "var") + ? (next(), var_(true)) + : expression(true, true); + if (is("operator", "in")) { + if (init instanceof AST_Var) { + if (init.definitions.length > 1) + croak("Only one variable declaration allowed in for..in loop", init.start.line, init.start.col, init.start.pos); + } else if (!is_assignable(init)) { + croak("Invalid left-hand side in for..in loop", init.start.line, init.start.col, init.start.pos); + } + next(); + return for_in(init); + } + } + return regular_for(init); + }; + + function regular_for(init) { + expect(";"); + var test = is("punc", ";") ? null : expression(true); + expect(";"); + var step = is("punc", ")") ? null : expression(true); + expect(")"); + return new AST_For({ + init : init, + condition : test, + step : step, + body : in_loop(statement) + }); + }; + + function for_in(init) { + var lhs = init instanceof AST_Var ? init.definitions[0].name : null; + var obj = expression(true); + expect(")"); + return new AST_ForIn({ + init : init, + name : lhs, + object : obj, + body : in_loop(statement) + }); + }; + + var function_ = function(ctor) { + var in_statement = ctor === AST_Defun; + var name = is("name") ? as_symbol(in_statement ? AST_SymbolDefun : AST_SymbolLambda) : null; + if (in_statement && !name) + unexpected(); + expect("("); + var argnames = []; + for (var first = true; !is("punc", ")");) { + if (first) first = false; else expect(","); + argnames.push(as_symbol(AST_SymbolFunarg)); + } + next(); + var loop = S.in_loop; + var labels = S.labels; + ++S.in_function; + S.in_directives = true; + S.input.push_directives_stack(); + S.in_loop = 0; + S.labels = []; + var body = block_(); + if (S.input.has_directive("use strict")) { + if (name) strict_verify_symbol(name); + argnames.forEach(strict_verify_symbol); + } + S.input.pop_directives_stack(); + --S.in_function; + S.in_loop = loop; + S.labels = labels; + return new ctor({ + name: name, + argnames: argnames, + body: body + }); + }; + + function if_() { + var cond = parenthesised(), body = statement(), belse = null; + if (is("keyword", "else")) { + next(); + belse = statement(); + } + return new AST_If({ + condition : cond, + body : body, + alternative : belse + }); + }; + + function block_() { + expect("{"); + var a = []; + while (!is("punc", "}")) { + if (is("eof")) unexpected(); + a.push(statement()); + } + next(); + return a; + }; + + function switch_body_() { + expect("{"); + var a = [], cur = null, branch = null, tmp; + while (!is("punc", "}")) { + if (is("eof")) unexpected(); + if (is("keyword", "case")) { + if (branch) branch.end = prev(); + cur = []; + branch = new AST_Case({ + start : (tmp = S.token, next(), tmp), + expression : expression(true), + body : cur + }); + a.push(branch); + expect(":"); + } + else if (is("keyword", "default")) { + if (branch) branch.end = prev(); + cur = []; + branch = new AST_Default({ + start : (tmp = S.token, next(), expect(":"), tmp), + body : cur + }); + a.push(branch); + } + else { + if (!cur) unexpected(); + cur.push(statement()); + } + } + if (branch) branch.end = prev(); + next(); + return a; + }; + + function try_() { + var body = block_(), bcatch = null, bfinally = null; + if (is("keyword", "catch")) { + var start = S.token; + next(); + expect("("); + var name = as_symbol(AST_SymbolCatch); + expect(")"); + bcatch = new AST_Catch({ + start : start, + argname : name, + body : block_(), + end : prev() + }); + } + if (is("keyword", "finally")) { + var start = S.token; + next(); + bfinally = new AST_Finally({ + start : start, + body : block_(), + end : prev() + }); + } + if (!bcatch && !bfinally) + croak("Missing catch/finally blocks"); + return new AST_Try({ + body : body, + bcatch : bcatch, + bfinally : bfinally + }); + }; + + function vardefs(no_in) { + var a = []; + for (;;) { + a.push(new AST_VarDef({ + start : S.token, + name : as_symbol(AST_SymbolVar), + value : is("operator", "=") ? (next(), expression(false, no_in)) : null, + end : prev() + })); + if (!is("punc", ",")) + break; + next(); + } + return a; + }; + + var var_ = function(no_in) { + return new AST_Var({ + start : prev(), + definitions : vardefs(no_in), + end : prev() + }); + }; + + var new_ = function(allow_calls) { + var start = S.token; + expect_token("operator", "new"); + var newexp = expr_atom(false), args; + if (is("punc", "(")) { + next(); + args = expr_list(")"); + } else { + args = []; + } + return subscripts(new AST_New({ + start : start, + expression : newexp, + args : args, + end : prev() + }), allow_calls); + }; + + function as_atom_node() { + var tok = S.token, ret; + switch (tok.type) { + case "name": + ret = _make_symbol(AST_SymbolRef); + break; + case "num": + ret = new AST_Number({ start: tok, end: tok, value: tok.value }); + break; + case "string": + ret = new AST_String({ + start : tok, + end : tok, + value : tok.value, + quote : tok.quote + }); + break; + case "regexp": + ret = new AST_RegExp({ start: tok, end: tok, value: tok.value }); + break; + case "atom": + switch (tok.value) { + case "false": + ret = new AST_False({ start: tok, end: tok }); + break; + case "true": + ret = new AST_True({ start: tok, end: tok }); + break; + case "null": + ret = new AST_Null({ start: tok, end: tok }); + break; + } + break; + } + next(); + return ret; + }; + + var expr_atom = function(allow_calls) { + if (is("operator", "new")) { + return new_(allow_calls); + } + var start = S.token; + if (is("punc")) { + switch (start.value) { + case "(": + next(); + var ex = expression(true); + ex.start = start; + ex.end = S.token; + expect(")"); + return subscripts(ex, allow_calls); + case "[": + return subscripts(array_(), allow_calls); + case "{": + return subscripts(object_(), allow_calls); + } + unexpected(); + } + if (is("keyword", "function")) { + next(); + var func = function_(AST_Function); + func.start = start; + func.end = prev(); + return subscripts(func, allow_calls); + } + if (ATOMIC_START_TOKEN(S.token.type)) { + return subscripts(as_atom_node(), allow_calls); + } + unexpected(); + }; + + function expr_list(closing, allow_trailing_comma, allow_empty) { + var first = true, a = []; + while (!is("punc", closing)) { + if (first) first = false; else expect(","); + if (allow_trailing_comma && is("punc", closing)) break; + if (is("punc", ",") && allow_empty) { + a.push(new AST_Hole({ start: S.token, end: S.token })); + } else { + a.push(expression(false)); + } + } + next(); + return a; + }; + + var array_ = embed_tokens(function() { + expect("["); + return new AST_Array({ + elements: expr_list("]", !options.strict, true) + }); + }); + + var create_accessor = embed_tokens(function() { + return function_(AST_Accessor); + }); + + var object_ = embed_tokens(function() { + expect("{"); + var first = true, a = []; + while (!is("punc", "}")) { + if (first) first = false; else expect(","); + if (!options.strict && is("punc", "}")) + // allow trailing comma + break; + var start = S.token; + var type = start.type; + var name = as_property_name(); + if (type == "name" && !is("punc", ":")) { + var key = new AST_SymbolAccessor({ + start: S.token, + name: as_property_name(), + end: prev() + }); + if (name == "get") { + a.push(new AST_ObjectGetter({ + start : start, + key : key, + value : create_accessor(), + end : prev() + })); + continue; + } + if (name == "set") { + a.push(new AST_ObjectSetter({ + start : start, + key : key, + value : create_accessor(), + end : prev() + })); + continue; + } + } + expect(":"); + a.push(new AST_ObjectKeyVal({ + start : start, + quote : start.quote, + key : name, + value : expression(false), + end : prev() + })); + } + next(); + return new AST_Object({ properties: a }); + }); + + function as_property_name() { + var tmp = S.token; + switch (tmp.type) { + case "operator": + if (!KEYWORDS(tmp.value)) unexpected(); + case "num": + case "string": + case "name": + case "keyword": + case "atom": + next(); + return tmp.value; + default: + unexpected(); + } + }; + + function as_name() { + var tmp = S.token; + if (tmp.type != "name") unexpected(); + next(); + return tmp.value; + }; + + function _make_symbol(type) { + var name = S.token.value; + return new (name == "this" ? AST_This : type)({ + name : String(name), + start : S.token, + end : S.token + }); + }; + + function strict_verify_symbol(sym) { + if (sym.name == "arguments" || sym.name == "eval") + croak("Unexpected " + sym.name + " in strict mode", sym.start.line, sym.start.col, sym.start.pos); + } + + function as_symbol(type, noerror) { + if (!is("name")) { + if (!noerror) croak("Name expected"); + return null; + } + var sym = _make_symbol(type); + if (S.input.has_directive("use strict") && sym instanceof AST_SymbolDeclaration) { + strict_verify_symbol(sym); + } + next(); + return sym; + }; + + var subscripts = function(expr, allow_calls) { + var start = expr.start; + if (is("punc", ".")) { + next(); + return subscripts(new AST_Dot({ + start : start, + expression : expr, + property : as_name(), + end : prev() + }), allow_calls); + } + if (is("punc", "[")) { + next(); + var prop = expression(true); + expect("]"); + return subscripts(new AST_Sub({ + start : start, + expression : expr, + property : prop, + end : prev() + }), allow_calls); + } + if (allow_calls && is("punc", "(")) { + next(); + return subscripts(new AST_Call({ + start : start, + expression : expr, + args : expr_list(")"), + end : prev() + }), true); + } + return expr; + }; + + var maybe_unary = function(allow_calls) { + var start = S.token; + if (is("operator") && UNARY_PREFIX(start.value)) { + next(); + handle_regexp(); + var ex = make_unary(AST_UnaryPrefix, start, maybe_unary(allow_calls)); + ex.start = start; + ex.end = prev(); + return ex; + } + var val = expr_atom(allow_calls); + while (is("operator") && UNARY_POSTFIX(S.token.value) && !S.token.nlb) { + val = make_unary(AST_UnaryPostfix, S.token, val); + val.start = start; + val.end = S.token; + next(); + } + return val; + }; + + function make_unary(ctor, token, expr) { + var op = token.value; + switch (op) { + case "++": + case "--": + if (!is_assignable(expr)) + croak("Invalid use of " + op + " operator", token.line, token.col, token.pos); + break; + case "delete": + if (expr instanceof AST_SymbolRef && S.input.has_directive("use strict")) + croak("Calling delete on expression not allowed in strict mode", expr.start.line, expr.start.col, expr.start.pos); + break; + } + return new ctor({ operator: op, expression: expr }); + }; + + var expr_op = function(left, min_prec, no_in) { + var op = is("operator") ? S.token.value : null; + if (op == "in" && no_in) op = null; + var prec = op != null ? PRECEDENCE[op] : null; + if (prec != null && prec > min_prec) { + next(); + var right = expr_op(maybe_unary(true), prec, no_in); + return expr_op(new AST_Binary({ + start : left.start, + left : left, + operator : op, + right : right, + end : right.end + }), min_prec, no_in); + } + return left; + }; + + function expr_ops(no_in) { + return expr_op(maybe_unary(true), 0, no_in); + }; + + var maybe_conditional = function(no_in) { + var start = S.token; + var expr = expr_ops(no_in); + if (is("operator", "?")) { + next(); + var yes = expression(false); + expect(":"); + return new AST_Conditional({ + start : start, + condition : expr, + consequent : yes, + alternative : expression(false, no_in), + end : prev() + }); + } + return expr; + }; + + function is_assignable(expr) { + return expr instanceof AST_PropAccess || expr instanceof AST_SymbolRef; + }; + + var maybe_assign = function(no_in) { + var start = S.token; + var left = maybe_conditional(no_in), val = S.token.value; + if (is("operator") && ASSIGNMENT(val)) { + if (is_assignable(left)) { + next(); + return new AST_Assign({ + start : start, + left : left, + operator : val, + right : maybe_assign(no_in), + end : prev() + }); + } + croak("Invalid assignment"); + } + return left; + }; + + var expression = function(commas, no_in) { + var start = S.token; + var exprs = []; + while (true) { + exprs.push(maybe_assign(no_in)); + if (!commas || !is("punc", ",")) break; + next(); + commas = true; + } + return exprs.length == 1 ? exprs[0] : new AST_Sequence({ + start : start, + expressions : exprs, + end : peek() + }); + }; + + function in_loop(cont) { + ++S.in_loop; + var ret = cont(); + --S.in_loop; + return ret; + }; + + if (options.expression) { + return expression(true); + } + + return (function(){ + var start = S.token; + var body = []; + S.input.push_directives_stack(); + while (!is("eof")) + body.push(statement()); + S.input.pop_directives_stack(); + var end = prev(); + var toplevel = options.toplevel; + if (toplevel) { + toplevel.body = toplevel.body.concat(body); + toplevel.end = end; + } else { + toplevel = new AST_Toplevel({ start: start, body: body, end: end }); + } + return toplevel; + })(); + +}; diff --git a/node_modules/html-minifier/node_modules/uglify-js/lib/propmangle.js b/node_modules/html-minifier/node_modules/uglify-js/lib/propmangle.js new file mode 100644 index 000000000..36a67e80a --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/lib/propmangle.js @@ -0,0 +1,241 @@ +/*********************************************************************** + + A JavaScript tokenizer / parser / beautifier / compressor. + https://github.com/mishoo/UglifyJS2 + + -------------------------------- (C) --------------------------------- + + Author: Mihai Bazon + + http://mihai.bazon.net/blog + + Distributed under the BSD license: + + Copyright 2012 (c) Mihai Bazon + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above + copyright notice, this list of conditions and the following + disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + + ***********************************************************************/ + +"use strict"; + +function find_builtins(reserved) { + // NaN will be included due to Number.NaN + [ + "null", + "true", + "false", + "Infinity", + "-Infinity", + "undefined", + ].forEach(add); + [ Object, Array, Function, Number, + String, Boolean, Error, Math, + Date, RegExp + ].forEach(function(ctor){ + Object.getOwnPropertyNames(ctor).map(add); + if (ctor.prototype) { + Object.getOwnPropertyNames(ctor.prototype).map(add); + } + }); + function add(name) { + push_uniq(reserved, name); + } +} + +function reserve_quoted_keys(ast, reserved) { + function add(name) { + push_uniq(reserved, name); + } + + ast.walk(new TreeWalker(function(node) { + if (node instanceof AST_ObjectKeyVal && node.quote) { + add(node.key); + } else if (node instanceof AST_Sub) { + addStrings(node.property, add); + } + })); +} + +function addStrings(node, add) { + node.walk(new TreeWalker(function(node) { + if (node instanceof AST_Sequence) { + addStrings(node.expressions[node.expressions.length - 1], add); + } else if (node instanceof AST_String) { + add(node.value); + } else if (node instanceof AST_Conditional) { + addStrings(node.consequent, add); + addStrings(node.alternative, add); + } + return true; + })); +} + +function mangle_properties(ast, options) { + options = defaults(options, { + builtins: false, + cache: null, + debug: false, + keep_quoted: false, + only_cache: false, + regex: null, + reserved: null, + }, true); + + var reserved = options.reserved; + if (!Array.isArray(reserved)) reserved = []; + if (!options.builtins) find_builtins(reserved); + + var cache = options.cache; + if (cache == null) { + cache = { + cname: -1, + props: new Dictionary() + }; + } + + var regex = options.regex; + + // note debug is either false (disabled), or a string of the debug suffix to use (enabled). + // note debug may be enabled as an empty string, which is falsey. Also treat passing 'true' + // the same as passing an empty string. + var debug = options.debug !== false; + var debug_name_suffix; + if (debug) { + debug_name_suffix = (options.debug === true ? "" : options.debug); + } + + var names_to_mangle = []; + var unmangleable = []; + + // step 1: find candidates to mangle + ast.walk(new TreeWalker(function(node){ + if (node instanceof AST_ObjectKeyVal) { + add(node.key); + } + else if (node instanceof AST_ObjectProperty) { + // setter or getter, since KeyVal is handled above + add(node.key.name); + } + else if (node instanceof AST_Dot) { + add(node.property); + } + else if (node instanceof AST_Sub) { + addStrings(node.property, add); + } + })); + + // step 2: transform the tree, renaming properties + return ast.transform(new TreeTransformer(function(node){ + if (node instanceof AST_ObjectKeyVal) { + node.key = mangle(node.key); + } + else if (node instanceof AST_ObjectProperty) { + // setter or getter + node.key.name = mangle(node.key.name); + } + else if (node instanceof AST_Dot) { + node.property = mangle(node.property); + } + else if (!options.keep_quoted && node instanceof AST_Sub) { + node.property = mangleStrings(node.property); + } + })); + + // only function declarations after this line + + function can_mangle(name) { + if (unmangleable.indexOf(name) >= 0) return false; + if (reserved.indexOf(name) >= 0) return false; + if (options.only_cache) { + return cache.props.has(name); + } + if (/^-?[0-9]+(\.[0-9]+)?(e[+-][0-9]+)?$/.test(name)) return false; + return true; + } + + function should_mangle(name) { + if (regex && !regex.test(name)) return false; + if (reserved.indexOf(name) >= 0) return false; + return cache.props.has(name) + || names_to_mangle.indexOf(name) >= 0; + } + + function add(name) { + if (can_mangle(name)) + push_uniq(names_to_mangle, name); + + if (!should_mangle(name)) { + push_uniq(unmangleable, name); + } + } + + function mangle(name) { + if (!should_mangle(name)) { + return name; + } + + var mangled = cache.props.get(name); + if (!mangled) { + if (debug) { + // debug mode: use a prefix and suffix to preserve readability, e.g. o.foo -> o._$foo$NNN_. + var debug_mangled = "_$" + name + "$" + debug_name_suffix + "_"; + + if (can_mangle(debug_mangled)) { + mangled = debug_mangled; + } + } + + // either debug mode is off, or it is on and we could not use the mangled name + if (!mangled) { + do { + mangled = base54(++cache.cname); + } while (!can_mangle(mangled)); + } + + cache.props.set(name, mangled); + } + return mangled; + } + + function mangleStrings(node) { + return node.transform(new TreeTransformer(function(node){ + if (node instanceof AST_Sequence) { + var last = node.expressions.length - 1; + node.expressions[last] = mangleStrings(node.expressions[last]); + } + else if (node instanceof AST_String) { + node.value = mangle(node.value); + } + else if (node instanceof AST_Conditional) { + node.consequent = mangleStrings(node.consequent); + node.alternative = mangleStrings(node.alternative); + } + return node; + })); + } +} diff --git a/node_modules/html-minifier/node_modules/uglify-js/lib/scope.js b/node_modules/html-minifier/node_modules/uglify-js/lib/scope.js new file mode 100644 index 000000000..df7b2076c --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/lib/scope.js @@ -0,0 +1,525 @@ +/*********************************************************************** + + A JavaScript tokenizer / parser / beautifier / compressor. + https://github.com/mishoo/UglifyJS2 + + -------------------------------- (C) --------------------------------- + + Author: Mihai Bazon + + http://mihai.bazon.net/blog + + Distributed under the BSD license: + + Copyright 2012 (c) Mihai Bazon + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above + copyright notice, this list of conditions and the following + disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + + ***********************************************************************/ + +"use strict"; + +function SymbolDef(scope, index, orig) { + this.name = orig.name; + this.orig = [ orig ]; + this.scope = scope; + this.references = []; + this.global = false; + this.mangled_name = null; + this.undeclared = false; + this.index = index; + this.id = SymbolDef.next_id++; +}; + +SymbolDef.next_id = 1; + +SymbolDef.prototype = { + unmangleable: function(options) { + if (!options) options = {}; + + return (this.global && !options.toplevel) + || this.undeclared + || (!options.eval && (this.scope.uses_eval || this.scope.uses_with)) + || (options.keep_fnames + && (this.orig[0] instanceof AST_SymbolLambda + || this.orig[0] instanceof AST_SymbolDefun)); + }, + mangle: function(options) { + var cache = options.cache && options.cache.props; + if (this.global && cache && cache.has(this.name)) { + this.mangled_name = cache.get(this.name); + } + else if (!this.mangled_name && !this.unmangleable(options)) { + var s = this.scope; + var sym = this.orig[0]; + if (options.ie8 && sym instanceof AST_SymbolLambda) + s = s.parent_scope; + var def; + if (def = this.redefined()) { + this.mangled_name = def.mangled_name || def.name; + } else + this.mangled_name = s.next_mangled(options, this); + if (this.global && cache) { + cache.set(this.name, this.mangled_name); + } + } + }, + redefined: function() { + return this.defun && this.defun.variables.get(this.name); + } +}; + +AST_Toplevel.DEFMETHOD("figure_out_scope", function(options){ + options = defaults(options, { + cache: null, + ie8: false, + }); + + // pass 1: setup scope chaining and handle definitions + var self = this; + var scope = self.parent_scope = null; + var labels = new Dictionary(); + var defun = null; + var tw = new TreeWalker(function(node, descend){ + if (node instanceof AST_Catch) { + var save_scope = scope; + scope = new AST_Scope(node); + scope.init_scope_vars(save_scope); + descend(); + scope = save_scope; + return true; + } + if (node instanceof AST_Scope) { + node.init_scope_vars(scope); + var save_scope = scope; + var save_defun = defun; + var save_labels = labels; + defun = scope = node; + labels = new Dictionary(); + descend(); + scope = save_scope; + defun = save_defun; + labels = save_labels; + return true; // don't descend again in TreeWalker + } + if (node instanceof AST_LabeledStatement) { + var l = node.label; + if (labels.has(l.name)) { + throw new Error(string_template("Label {name} defined twice", l)); + } + labels.set(l.name, l); + descend(); + labels.del(l.name); + return true; // no descend again + } + if (node instanceof AST_With) { + for (var s = scope; s; s = s.parent_scope) + s.uses_with = true; + return; + } + if (node instanceof AST_Symbol) { + node.scope = scope; + } + if (node instanceof AST_Label) { + node.thedef = node; + node.references = []; + } + if (node instanceof AST_SymbolLambda) { + defun.def_function(node); + } + else if (node instanceof AST_SymbolDefun) { + // Careful here, the scope where this should be defined is + // the parent scope. The reason is that we enter a new + // scope when we encounter the AST_Defun node (which is + // instanceof AST_Scope) but we get to the symbol a bit + // later. + (node.scope = defun.parent_scope).def_function(node); + } + else if (node instanceof AST_SymbolVar) { + defun.def_variable(node); + if (defun !== scope) { + node.mark_enclosed(options); + var def = scope.find_variable(node); + if (node.thedef !== def) { + node.thedef = def; + node.reference(options); + } + } + } + else if (node instanceof AST_SymbolCatch) { + scope.def_variable(node).defun = defun; + } + else if (node instanceof AST_LabelRef) { + var sym = labels.get(node.name); + if (!sym) throw new Error(string_template("Undefined label {name} [{line},{col}]", { + name: node.name, + line: node.start.line, + col: node.start.col + })); + node.thedef = sym; + } + }); + self.walk(tw); + + // pass 2: find back references and eval + self.globals = new Dictionary(); + var tw = new TreeWalker(function(node, descend){ + if (node instanceof AST_LoopControl && node.label) { + node.label.thedef.references.push(node); + return true; + } + if (node instanceof AST_SymbolRef) { + var name = node.name; + if (name == "eval" && tw.parent() instanceof AST_Call) { + for (var s = node.scope; s && !s.uses_eval; s = s.parent_scope) { + s.uses_eval = true; + } + } + var sym = node.scope.find_variable(name); + if (!sym) { + sym = self.def_global(node); + } else if (sym.scope instanceof AST_Lambda && name == "arguments") { + sym.scope.uses_arguments = true; + } + node.thedef = sym; + node.reference(options); + return true; + } + // ensure mangling works if catch reuses a scope variable + var def; + if (node instanceof AST_SymbolCatch && (def = node.definition().redefined())) { + var s = node.scope; + while (s) { + push_uniq(s.enclosed, def); + if (s === def.scope) break; + s = s.parent_scope; + } + } + }); + self.walk(tw); + + // pass 3: fix up any scoping issue with IE8 + if (options.ie8) { + self.walk(new TreeWalker(function(node, descend) { + if (node instanceof AST_SymbolCatch) { + var name = node.name; + var refs = node.thedef.references; + var scope = node.thedef.defun; + var def = scope.find_variable(name) || self.globals.get(name) || scope.def_variable(node); + refs.forEach(function(ref) { + ref.thedef = def; + ref.reference(options); + }); + node.thedef = def; + return true; + } + })); + } + + if (options.cache) { + this.cname = options.cache.cname; + } +}); + +AST_Toplevel.DEFMETHOD("def_global", function(node){ + var globals = this.globals, name = node.name; + if (globals.has(name)) { + return globals.get(name); + } else { + var g = new SymbolDef(this, globals.size(), node); + g.undeclared = true; + g.global = true; + globals.set(name, g); + return g; + } +}); + +AST_Scope.DEFMETHOD("init_scope_vars", function(parent_scope){ + this.variables = new Dictionary(); // map name to AST_SymbolVar (variables defined in this scope; includes functions) + this.functions = new Dictionary(); // map name to AST_SymbolDefun (functions defined in this scope) + this.uses_with = false; // will be set to true if this or some nested scope uses the `with` statement + this.uses_eval = false; // will be set to true if this or nested scope uses the global `eval` + this.parent_scope = parent_scope; // the parent scope + this.enclosed = []; // a list of variables from this or outer scope(s) that are referenced from this or inner scopes + this.cname = -1; // the current index for mangling functions/variables +}); + +AST_Lambda.DEFMETHOD("init_scope_vars", function(){ + AST_Scope.prototype.init_scope_vars.apply(this, arguments); + this.uses_arguments = false; + this.def_variable(new AST_SymbolFunarg({ + name: "arguments", + start: this.start, + end: this.end + })); +}); + +AST_Symbol.DEFMETHOD("mark_enclosed", function(options) { + var def = this.definition(); + var s = this.scope; + while (s) { + push_uniq(s.enclosed, def); + if (options.keep_fnames) { + s.functions.each(function(d) { + push_uniq(def.scope.enclosed, d); + }); + } + if (s === def.scope) break; + s = s.parent_scope; + } +}); + +AST_Symbol.DEFMETHOD("reference", function(options) { + this.definition().references.push(this); + this.mark_enclosed(options); +}); + +AST_Scope.DEFMETHOD("find_variable", function(name){ + if (name instanceof AST_Symbol) name = name.name; + return this.variables.get(name) + || (this.parent_scope && this.parent_scope.find_variable(name)); +}); + +AST_Scope.DEFMETHOD("def_function", function(symbol){ + this.functions.set(symbol.name, this.def_variable(symbol)); +}); + +AST_Scope.DEFMETHOD("def_variable", function(symbol){ + var def; + if (!this.variables.has(symbol.name)) { + def = new SymbolDef(this, this.variables.size(), symbol); + this.variables.set(symbol.name, def); + def.global = !this.parent_scope; + } else { + def = this.variables.get(symbol.name); + def.orig.push(symbol); + } + return symbol.thedef = def; +}); + +AST_Scope.DEFMETHOD("next_mangled", function(options){ + var ext = this.enclosed; + out: while (true) { + var m = base54(++this.cname); + if (!is_identifier(m)) continue; // skip over "do" + + // https://github.com/mishoo/UglifyJS2/issues/242 -- do not + // shadow a name reserved from mangling. + if (options.reserved.indexOf(m) >= 0) continue; + + // we must ensure that the mangled name does not shadow a name + // from some parent scope that is referenced in this or in + // inner scopes. + for (var i = ext.length; --i >= 0;) { + var sym = ext[i]; + var name = sym.mangled_name || (sym.unmangleable(options) && sym.name); + if (m == name) continue out; + } + return m; + } +}); + +AST_Function.DEFMETHOD("next_mangled", function(options, def){ + // #179, #326 + // in Safari strict mode, something like (function x(x){...}) is a syntax error; + // a function expression's argument cannot shadow the function expression's name + + var tricky_def = def.orig[0] instanceof AST_SymbolFunarg && this.name && this.name.definition(); + + // the function's mangled_name is null when keep_fnames is true + var tricky_name = tricky_def ? tricky_def.mangled_name || tricky_def.name : null; + + while (true) { + var name = AST_Lambda.prototype.next_mangled.call(this, options, def); + if (!tricky_name || tricky_name != name) + return name; + } +}); + +AST_Symbol.DEFMETHOD("unmangleable", function(options){ + var def = this.definition(); + return !def || def.unmangleable(options); +}); + +// labels are always mangleable +AST_Label.DEFMETHOD("unmangleable", return_false); + +AST_Symbol.DEFMETHOD("unreferenced", function(){ + return this.definition().references.length == 0 + && !(this.scope.uses_eval || this.scope.uses_with); +}); + +AST_Symbol.DEFMETHOD("definition", function(){ + return this.thedef; +}); + +AST_Symbol.DEFMETHOD("global", function(){ + return this.definition().global; +}); + +AST_Toplevel.DEFMETHOD("_default_mangler_options", function(options){ + options = defaults(options, { + eval : false, + ie8 : false, + keep_fnames : false, + reserved : [], + toplevel : false, + }); + if (!Array.isArray(options.reserved)) options.reserved = []; + return options; +}); + +AST_Toplevel.DEFMETHOD("mangle_names", function(options){ + options = this._default_mangler_options(options); + + // Never mangle arguments + options.reserved.push('arguments'); + + // We only need to mangle declaration nodes. Special logic wired + // into the code generator will display the mangled name if it's + // present (and for AST_SymbolRef-s it'll use the mangled name of + // the AST_SymbolDeclaration that it points to). + var lname = -1; + var to_mangle = []; + + if (options.cache) { + this.globals.each(function(symbol){ + if (options.reserved.indexOf(symbol.name) < 0) { + to_mangle.push(symbol); + } + }); + } + + var tw = new TreeWalker(function(node, descend){ + if (node instanceof AST_LabeledStatement) { + // lname is incremented when we get to the AST_Label + var save_nesting = lname; + descend(); + lname = save_nesting; + return true; // don't descend again in TreeWalker + } + if (node instanceof AST_Scope) { + var p = tw.parent(), a = []; + node.variables.each(function(symbol){ + if (options.reserved.indexOf(symbol.name) < 0) { + a.push(symbol); + } + }); + to_mangle.push.apply(to_mangle, a); + return; + } + if (node instanceof AST_Label) { + var name; + do name = base54(++lname); while (!is_identifier(name)); + node.mangled_name = name; + return true; + } + if (!options.ie8 && node instanceof AST_SymbolCatch) { + to_mangle.push(node.definition()); + return; + } + }); + this.walk(tw); + to_mangle.forEach(function(def){ def.mangle(options) }); + + if (options.cache) { + options.cache.cname = this.cname; + } +}); + +AST_Toplevel.DEFMETHOD("compute_char_frequency", function(options){ + options = this._default_mangler_options(options); + try { + AST_Node.prototype.print = function(stream, force_parens) { + this._print(stream, force_parens); + if (this instanceof AST_Symbol && !this.unmangleable(options)) { + base54.consider(this.name, -1); + } else if (options.properties) { + if (this instanceof AST_Dot) { + base54.consider(this.property, -1); + } else if (this instanceof AST_Sub) { + skip_string(this.property); + } + } + }; + base54.consider(this.print_to_string(), 1); + } finally { + AST_Node.prototype.print = AST_Node.prototype._print; + } + base54.sort(); + + function skip_string(node) { + if (node instanceof AST_String) { + base54.consider(node.value, -1); + } else if (node instanceof AST_Conditional) { + skip_string(node.consequent); + skip_string(node.alternative); + } else if (node instanceof AST_Sequence) { + skip_string(node.expressions[node.expressions.length - 1]); + } + } +}); + +var base54 = (function() { + var leading = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_".split(""); + var digits = "0123456789".split(""); + var chars, frequency; + function reset() { + frequency = Object.create(null); + leading.forEach(function(ch) { + frequency[ch] = 0; + }); + digits.forEach(function(ch) { + frequency[ch] = 0; + }); + } + base54.consider = function(str, delta) { + for (var i = str.length; --i >= 0;) { + frequency[str[i]] += delta; + } + }; + function compare(a, b) { + return frequency[b] - frequency[a]; + } + base54.sort = function() { + chars = mergeSort(leading, compare).concat(mergeSort(digits, compare)); + }; + base54.reset = reset; + reset(); + function base54(num) { + var ret = "", base = 54; + num++; + do { + num--; + ret += chars[num % base]; + num = Math.floor(num / base); + base = 64; + } while (num > 0); + return ret; + }; + return base54; +})(); diff --git a/node_modules/html-minifier/node_modules/uglify-js/lib/sourcemap.js b/node_modules/html-minifier/node_modules/uglify-js/lib/sourcemap.js new file mode 100644 index 000000000..0be16bfc7 --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/lib/sourcemap.js @@ -0,0 +1,97 @@ +/*********************************************************************** + + A JavaScript tokenizer / parser / beautifier / compressor. + https://github.com/mishoo/UglifyJS2 + + -------------------------------- (C) --------------------------------- + + Author: Mihai Bazon + + http://mihai.bazon.net/blog + + Distributed under the BSD license: + + Copyright 2012 (c) Mihai Bazon + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above + copyright notice, this list of conditions and the following + disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + + ***********************************************************************/ + +"use strict"; + +// a small wrapper around fitzgen's source-map library +function SourceMap(options) { + options = defaults(options, { + file : null, + root : null, + orig : null, + + orig_line_diff : 0, + dest_line_diff : 0, + }); + var generator = new MOZ_SourceMap.SourceMapGenerator({ + file : options.file, + sourceRoot : options.root + }); + var orig_map = options.orig && new MOZ_SourceMap.SourceMapConsumer(options.orig); + + if (orig_map && Array.isArray(options.orig.sources)) { + orig_map._sources.toArray().forEach(function(source) { + var sourceContent = orig_map.sourceContentFor(source, true); + if (sourceContent) { + generator.setSourceContent(source, sourceContent); + } + }); + } + + function add(source, gen_line, gen_col, orig_line, orig_col, name) { + if (orig_map) { + var info = orig_map.originalPositionFor({ + line: orig_line, + column: orig_col + }); + if (info.source === null) { + return; + } + source = info.source; + orig_line = info.line; + orig_col = info.column; + name = info.name || name; + } + generator.addMapping({ + generated : { line: gen_line + options.dest_line_diff, column: gen_col }, + original : { line: orig_line + options.orig_line_diff, column: orig_col }, + source : source, + name : name + }); + }; + return { + add : add, + get : function() { return generator }, + toString : function() { return JSON.stringify(generator.toJSON()); } + }; +}; diff --git a/node_modules/html-minifier/node_modules/uglify-js/lib/transform.js b/node_modules/html-minifier/node_modules/uglify-js/lib/transform.js new file mode 100644 index 000000000..8008e5714 --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/lib/transform.js @@ -0,0 +1,217 @@ +/*********************************************************************** + + A JavaScript tokenizer / parser / beautifier / compressor. + https://github.com/mishoo/UglifyJS2 + + -------------------------------- (C) --------------------------------- + + Author: Mihai Bazon + + http://mihai.bazon.net/blog + + Distributed under the BSD license: + + Copyright 2012 (c) Mihai Bazon + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above + copyright notice, this list of conditions and the following + disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + + ***********************************************************************/ + +"use strict"; + +// Tree transformer helpers. + +function TreeTransformer(before, after) { + TreeWalker.call(this); + this.before = before; + this.after = after; +} +TreeTransformer.prototype = new TreeWalker; + +(function(undefined){ + + function _(node, descend) { + node.DEFMETHOD("transform", function(tw, in_list){ + var x, y; + tw.push(this); + if (tw.before) x = tw.before(this, descend, in_list); + if (x === undefined) { + if (!tw.after) { + x = this; + descend(x, tw); + } else { + tw.stack[tw.stack.length - 1] = x = this; + descend(x, tw); + y = tw.after(x, in_list); + if (y !== undefined) x = y; + } + } + tw.pop(); + return x; + }); + }; + + function do_list(list, tw) { + return MAP(list, function(node){ + return node.transform(tw, true); + }); + }; + + _(AST_Node, noop); + + _(AST_LabeledStatement, function(self, tw){ + self.label = self.label.transform(tw); + self.body = self.body.transform(tw); + }); + + _(AST_SimpleStatement, function(self, tw){ + self.body = self.body.transform(tw); + }); + + _(AST_Block, function(self, tw){ + self.body = do_list(self.body, tw); + }); + + _(AST_DWLoop, function(self, tw){ + self.condition = self.condition.transform(tw); + self.body = self.body.transform(tw); + }); + + _(AST_For, function(self, tw){ + if (self.init) self.init = self.init.transform(tw); + if (self.condition) self.condition = self.condition.transform(tw); + if (self.step) self.step = self.step.transform(tw); + self.body = self.body.transform(tw); + }); + + _(AST_ForIn, function(self, tw){ + self.init = self.init.transform(tw); + self.object = self.object.transform(tw); + self.body = self.body.transform(tw); + }); + + _(AST_With, function(self, tw){ + self.expression = self.expression.transform(tw); + self.body = self.body.transform(tw); + }); + + _(AST_Exit, function(self, tw){ + if (self.value) self.value = self.value.transform(tw); + }); + + _(AST_LoopControl, function(self, tw){ + if (self.label) self.label = self.label.transform(tw); + }); + + _(AST_If, function(self, tw){ + self.condition = self.condition.transform(tw); + self.body = self.body.transform(tw); + if (self.alternative) self.alternative = self.alternative.transform(tw); + }); + + _(AST_Switch, function(self, tw){ + self.expression = self.expression.transform(tw); + self.body = do_list(self.body, tw); + }); + + _(AST_Case, function(self, tw){ + self.expression = self.expression.transform(tw); + self.body = do_list(self.body, tw); + }); + + _(AST_Try, function(self, tw){ + self.body = do_list(self.body, tw); + if (self.bcatch) self.bcatch = self.bcatch.transform(tw); + if (self.bfinally) self.bfinally = self.bfinally.transform(tw); + }); + + _(AST_Catch, function(self, tw){ + self.argname = self.argname.transform(tw); + self.body = do_list(self.body, tw); + }); + + _(AST_Definitions, function(self, tw){ + self.definitions = do_list(self.definitions, tw); + }); + + _(AST_VarDef, function(self, tw){ + self.name = self.name.transform(tw); + if (self.value) self.value = self.value.transform(tw); + }); + + _(AST_Lambda, function(self, tw){ + if (self.name) self.name = self.name.transform(tw); + self.argnames = do_list(self.argnames, tw); + self.body = do_list(self.body, tw); + }); + + _(AST_Call, function(self, tw){ + self.expression = self.expression.transform(tw); + self.args = do_list(self.args, tw); + }); + + _(AST_Sequence, function(self, tw){ + self.expressions = do_list(self.expressions, tw); + }); + + _(AST_Dot, function(self, tw){ + self.expression = self.expression.transform(tw); + }); + + _(AST_Sub, function(self, tw){ + self.expression = self.expression.transform(tw); + self.property = self.property.transform(tw); + }); + + _(AST_Unary, function(self, tw){ + self.expression = self.expression.transform(tw); + }); + + _(AST_Binary, function(self, tw){ + self.left = self.left.transform(tw); + self.right = self.right.transform(tw); + }); + + _(AST_Conditional, function(self, tw){ + self.condition = self.condition.transform(tw); + self.consequent = self.consequent.transform(tw); + self.alternative = self.alternative.transform(tw); + }); + + _(AST_Array, function(self, tw){ + self.elements = do_list(self.elements, tw); + }); + + _(AST_Object, function(self, tw){ + self.properties = do_list(self.properties, tw); + }); + + _(AST_ObjectProperty, function(self, tw){ + self.value = self.value.transform(tw); + }); + +})(); diff --git a/node_modules/html-minifier/node_modules/uglify-js/lib/utils.js b/node_modules/html-minifier/node_modules/uglify-js/lib/utils.js new file mode 100644 index 000000000..76306919a --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/lib/utils.js @@ -0,0 +1,355 @@ +/*********************************************************************** + + A JavaScript tokenizer / parser / beautifier / compressor. + https://github.com/mishoo/UglifyJS2 + + -------------------------------- (C) --------------------------------- + + Author: Mihai Bazon + + http://mihai.bazon.net/blog + + Distributed under the BSD license: + + Copyright 2012 (c) Mihai Bazon + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above + copyright notice, this list of conditions and the following + disclaimer. + + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. + + ***********************************************************************/ + +"use strict"; + +function slice(a, start) { + return Array.prototype.slice.call(a, start || 0); +}; + +function characters(str) { + return str.split(""); +}; + +function member(name, array) { + return array.indexOf(name) >= 0; +}; + +function find_if(func, array) { + for (var i = 0, n = array.length; i < n; ++i) { + if (func(array[i])) + return array[i]; + } +}; + +function repeat_string(str, i) { + if (i <= 0) return ""; + if (i == 1) return str; + var d = repeat_string(str, i >> 1); + d += d; + if (i & 1) d += str; + return d; +}; + +function configure_error_stack(fn) { + Object.defineProperty(fn.prototype, "stack", { + get: function() { + var err = new Error(this.message); + err.name = this.name; + try { + throw err; + } catch(e) { + return e.stack; + } + } + }); +} + +function DefaultsError(msg, defs) { + this.message = msg; + this.defs = defs; +}; +DefaultsError.prototype = Object.create(Error.prototype); +DefaultsError.prototype.constructor = DefaultsError; +DefaultsError.prototype.name = "DefaultsError"; +configure_error_stack(DefaultsError); + +DefaultsError.croak = function(msg, defs) { + throw new DefaultsError(msg, defs); +}; + +function defaults(args, defs, croak) { + if (args === true) + args = {}; + var ret = args || {}; + if (croak) for (var i in ret) if (HOP(ret, i) && !HOP(defs, i)) + DefaultsError.croak("`" + i + "` is not a supported option", defs); + for (var i in defs) if (HOP(defs, i)) { + ret[i] = (args && HOP(args, i)) ? args[i] : defs[i]; + } + return ret; +}; + +function merge(obj, ext) { + var count = 0; + for (var i in ext) if (HOP(ext, i)) { + obj[i] = ext[i]; + count++; + } + return count; +}; + +function noop() {} +function return_false() { return false; } +function return_true() { return true; } +function return_this() { return this; } +function return_null() { return null; } + +var MAP = (function(){ + function MAP(a, f, backwards) { + var ret = [], top = [], i; + function doit() { + var val = f(a[i], i); + var is_last = val instanceof Last; + if (is_last) val = val.v; + if (val instanceof AtTop) { + val = val.v; + if (val instanceof Splice) { + top.push.apply(top, backwards ? val.v.slice().reverse() : val.v); + } else { + top.push(val); + } + } + else if (val !== skip) { + if (val instanceof Splice) { + ret.push.apply(ret, backwards ? val.v.slice().reverse() : val.v); + } else { + ret.push(val); + } + } + return is_last; + }; + if (a instanceof Array) { + if (backwards) { + for (i = a.length; --i >= 0;) if (doit()) break; + ret.reverse(); + top.reverse(); + } else { + for (i = 0; i < a.length; ++i) if (doit()) break; + } + } + else { + for (i in a) if (HOP(a, i)) if (doit()) break; + } + return top.concat(ret); + }; + MAP.at_top = function(val) { return new AtTop(val) }; + MAP.splice = function(val) { return new Splice(val) }; + MAP.last = function(val) { return new Last(val) }; + var skip = MAP.skip = {}; + function AtTop(val) { this.v = val }; + function Splice(val) { this.v = val }; + function Last(val) { this.v = val }; + return MAP; +})(); + +function push_uniq(array, el) { + if (array.indexOf(el) < 0) + array.push(el); +}; + +function string_template(text, props) { + return text.replace(/\{(.+?)\}/g, function(str, p){ + return props && props[p]; + }); +}; + +function remove(array, el) { + for (var i = array.length; --i >= 0;) { + if (array[i] === el) array.splice(i, 1); + } +}; + +function mergeSort(array, cmp) { + if (array.length < 2) return array.slice(); + function merge(a, b) { + var r = [], ai = 0, bi = 0, i = 0; + while (ai < a.length && bi < b.length) { + cmp(a[ai], b[bi]) <= 0 + ? r[i++] = a[ai++] + : r[i++] = b[bi++]; + } + if (ai < a.length) r.push.apply(r, a.slice(ai)); + if (bi < b.length) r.push.apply(r, b.slice(bi)); + return r; + }; + function _ms(a) { + if (a.length <= 1) + return a; + var m = Math.floor(a.length / 2), left = a.slice(0, m), right = a.slice(m); + left = _ms(left); + right = _ms(right); + return merge(left, right); + }; + return _ms(array); +}; + +function set_difference(a, b) { + return a.filter(function(el){ + return b.indexOf(el) < 0; + }); +}; + +function set_intersection(a, b) { + return a.filter(function(el){ + return b.indexOf(el) >= 0; + }); +}; + +// this function is taken from Acorn [1], written by Marijn Haverbeke +// [1] https://github.com/marijnh/acorn +function makePredicate(words) { + if (!(words instanceof Array)) words = words.split(" "); + var f = "", cats = []; + out: for (var i = 0; i < words.length; ++i) { + for (var j = 0; j < cats.length; ++j) + if (cats[j][0].length == words[i].length) { + cats[j].push(words[i]); + continue out; + } + cats.push([words[i]]); + } + function quote(word) { + return JSON.stringify(word).replace(/[\u2028\u2029]/g, function(s) { + switch (s) { + case "\u2028": return "\\u2028"; + case "\u2029": return "\\u2029"; + } + return s; + }); + } + function compareTo(arr) { + if (arr.length == 1) return f += "return str === " + quote(arr[0]) + ";"; + f += "switch(str){"; + for (var i = 0; i < arr.length; ++i) f += "case " + quote(arr[i]) + ":"; + f += "return true}return false;"; + } + // When there are more than three length categories, an outer + // switch first dispatches on the lengths, to save on comparisons. + if (cats.length > 3) { + cats.sort(function(a, b) {return b.length - a.length;}); + f += "switch(str.length){"; + for (var i = 0; i < cats.length; ++i) { + var cat = cats[i]; + f += "case " + cat[0].length + ":"; + compareTo(cat); + } + f += "}"; + // Otherwise, simply generate a flat `switch` statement. + } else { + compareTo(words); + } + return new Function("str", f); +}; + +function all(array, predicate) { + for (var i = array.length; --i >= 0;) + if (!predicate(array[i])) + return false; + return true; +}; + +function Dictionary() { + this._values = Object.create(null); + this._size = 0; +}; +Dictionary.prototype = { + set: function(key, val) { + if (!this.has(key)) ++this._size; + this._values["$" + key] = val; + return this; + }, + add: function(key, val) { + if (this.has(key)) { + this.get(key).push(val); + } else { + this.set(key, [ val ]); + } + return this; + }, + get: function(key) { return this._values["$" + key] }, + del: function(key) { + if (this.has(key)) { + --this._size; + delete this._values["$" + key]; + } + return this; + }, + has: function(key) { return ("$" + key) in this._values }, + each: function(f) { + for (var i in this._values) + f(this._values[i], i.substr(1)); + }, + size: function() { + return this._size; + }, + map: function(f) { + var ret = []; + for (var i in this._values) + ret.push(f(this._values[i], i.substr(1))); + return ret; + }, + toObject: function() { return this._values } +}; +Dictionary.fromObject = function(obj) { + var dict = new Dictionary(); + dict._size = merge(dict._values, obj); + return dict; +}; + +function HOP(obj, prop) { + return Object.prototype.hasOwnProperty.call(obj, prop); +} + +// return true if the node at the top of the stack (that means the +// innermost node in the current output) is lexically the first in +// a statement. +function first_in_statement(stack) { + var node = stack.parent(-1); + for (var i = 0, p; p = stack.parent(i); i++) { + if (p instanceof AST_Statement && p.body === node) + return true; + if ((p instanceof AST_Sequence && p.expressions[0] === node) || + (p instanceof AST_Call && p.expression === node && !(p instanceof AST_New) ) || + (p instanceof AST_Dot && p.expression === node ) || + (p instanceof AST_Sub && p.expression === node ) || + (p instanceof AST_Conditional && p.condition === node ) || + (p instanceof AST_Binary && p.left === node ) || + (p instanceof AST_UnaryPostfix && p.expression === node )) + { + node = p; + } else { + return false; + } + } +} diff --git a/node_modules/html-minifier/node_modules/uglify-js/package.json b/node_modules/html-minifier/node_modules/uglify-js/package.json new file mode 100644 index 000000000..d22110be8 --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/package.json @@ -0,0 +1,44 @@ +{ + "name": "uglify-js", + "description": "JavaScript parser, mangler/compressor and beautifier toolkit", + "homepage": "http://lisperator.net/uglifyjs", + "author": "Mihai Bazon (http://lisperator.net/)", + "license": "BSD-2-Clause", + "version": "3.0.27", + "engines": { + "node": ">=0.8.0" + }, + "maintainers": [ + "Mihai Bazon (http://lisperator.net/)" + ], + "repository": { + "type": "git", + "url": "https://github.com/mishoo/UglifyJS2.git" + }, + "bugs": { + "url": "https://github.com/mishoo/UglifyJS2/issues" + }, + "main": "tools/node.js", + "bin": { + "uglifyjs": "bin/uglifyjs" + }, + "files": [ + "bin", + "lib", + "tools", + "LICENSE" + ], + "dependencies": { + "commander": "~2.11.0", + "source-map": "~0.5.1" + }, + "devDependencies": { + "acorn": "~5.1.1", + "mocha": "~3.4.2", + "semver": "~5.3.0" + }, + "scripts": { + "test": "node test/run-tests.js" + }, + "keywords": ["uglify", "uglify-js", "minify", "minifier", "es5"] +} diff --git a/node_modules/html-minifier/node_modules/uglify-js/tools/domprops.json b/node_modules/html-minifier/node_modules/uglify-js/tools/domprops.json new file mode 100644 index 000000000..481e8018d --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/tools/domprops.json @@ -0,0 +1,5601 @@ +[ + "$&", + "$'", + "$*", + "$+", + "$1", + "$2", + "$3", + "$4", + "$5", + "$6", + "$7", + "$8", + "$9", + "$_", + "$`", + "$input", + "@@iterator", + "ABORT_ERR", + "ACTIVE", + "ACTIVE_ATTRIBUTES", + "ACTIVE_TEXTURE", + "ACTIVE_UNIFORMS", + "ADDITION", + "ALIASED_LINE_WIDTH_RANGE", + "ALIASED_POINT_SIZE_RANGE", + "ALLOW_KEYBOARD_INPUT", + "ALLPASS", + "ALPHA", + "ALPHA_BITS", + "ALT_MASK", + "ALWAYS", + "ANY_TYPE", + "ANY_UNORDERED_NODE_TYPE", + "ARRAY_BUFFER", + "ARRAY_BUFFER_BINDING", + "ATTACHED_SHADERS", + "ATTRIBUTE_NODE", + "AT_TARGET", + "AddSearchProvider", + "AnalyserNode", + "AnimationEvent", + "AnonXMLHttpRequest", + "ApplicationCache", + "ApplicationCacheErrorEvent", + "Array", + "ArrayBuffer", + "Attr", + "Audio", + "AudioBuffer", + "AudioBufferSourceNode", + "AudioContext", + "AudioDestinationNode", + "AudioListener", + "AudioNode", + "AudioParam", + "AudioProcessingEvent", + "AudioStreamTrack", + "AutocompleteErrorEvent", + "BACK", + "BAD_BOUNDARYPOINTS_ERR", + "BANDPASS", + "BLEND", + "BLEND_COLOR", + "BLEND_DST_ALPHA", + "BLEND_DST_RGB", + "BLEND_EQUATION", + "BLEND_EQUATION_ALPHA", + "BLEND_EQUATION_RGB", + "BLEND_SRC_ALPHA", + "BLEND_SRC_RGB", + "BLUE_BITS", + "BLUR", + "BOOL", + "BOOLEAN_TYPE", + "BOOL_VEC2", + "BOOL_VEC3", + "BOOL_VEC4", + "BOTH", + "BROWSER_DEFAULT_WEBGL", + "BUBBLING_PHASE", + "BUFFER_SIZE", + "BUFFER_USAGE", + "BYTE", + "BYTES_PER_ELEMENT", + "BarProp", + "BaseHref", + "BatteryManager", + "BeforeLoadEvent", + "BeforeUnloadEvent", + "BiquadFilterNode", + "Blob", + "BlobEvent", + "Boolean", + "CAPTURING_PHASE", + "CCW", + "CDATASection", + "CDATA_SECTION_NODE", + "CHANGE", + "CHARSET_RULE", + "CHECKING", + "CLAMP_TO_EDGE", + "CLICK", + "CLOSED", + "CLOSING", + "COLOR_ATTACHMENT0", + "COLOR_BUFFER_BIT", + "COLOR_CLEAR_VALUE", + "COLOR_WRITEMASK", + "COMMENT_NODE", + "COMPILE_STATUS", + "COMPRESSED_RGBA_S3TC_DXT1_EXT", + "COMPRESSED_RGBA_S3TC_DXT3_EXT", + "COMPRESSED_RGBA_S3TC_DXT5_EXT", + "COMPRESSED_RGB_S3TC_DXT1_EXT", + "COMPRESSED_TEXTURE_FORMATS", + "CONNECTING", + "CONSTANT_ALPHA", + "CONSTANT_COLOR", + "CONSTRAINT_ERR", + "CONTEXT_LOST_WEBGL", + "CONTROL_MASK", + "COUNTER_STYLE_RULE", + "CSS", + "CSS2Properties", + "CSSCharsetRule", + "CSSConditionRule", + "CSSCounterStyleRule", + "CSSFontFaceRule", + "CSSFontFeatureValuesRule", + "CSSGroupingRule", + "CSSImportRule", + "CSSKeyframeRule", + "CSSKeyframesRule", + "CSSMediaRule", + "CSSMozDocumentRule", + "CSSNameSpaceRule", + "CSSPageRule", + "CSSPrimitiveValue", + "CSSRule", + "CSSRuleList", + "CSSStyleDeclaration", + "CSSStyleRule", + "CSSStyleSheet", + "CSSSupportsRule", + "CSSUnknownRule", + "CSSValue", + "CSSValueList", + "CSSVariablesDeclaration", + "CSSVariablesRule", + "CSSViewportRule", + "CSS_ATTR", + "CSS_CM", + "CSS_COUNTER", + "CSS_CUSTOM", + "CSS_DEG", + "CSS_DIMENSION", + "CSS_EMS", + "CSS_EXS", + "CSS_FILTER_BLUR", + "CSS_FILTER_BRIGHTNESS", + "CSS_FILTER_CONTRAST", + "CSS_FILTER_CUSTOM", + "CSS_FILTER_DROP_SHADOW", + "CSS_FILTER_GRAYSCALE", + "CSS_FILTER_HUE_ROTATE", + "CSS_FILTER_INVERT", + "CSS_FILTER_OPACITY", + "CSS_FILTER_REFERENCE", + "CSS_FILTER_SATURATE", + "CSS_FILTER_SEPIA", + "CSS_GRAD", + "CSS_HZ", + "CSS_IDENT", + "CSS_IN", + "CSS_INHERIT", + "CSS_KHZ", + "CSS_MATRIX", + "CSS_MATRIX3D", + "CSS_MM", + "CSS_MS", + "CSS_NUMBER", + "CSS_PC", + "CSS_PERCENTAGE", + "CSS_PERSPECTIVE", + "CSS_PRIMITIVE_VALUE", + "CSS_PT", + "CSS_PX", + "CSS_RAD", + "CSS_RECT", + "CSS_RGBCOLOR", + "CSS_ROTATE", + "CSS_ROTATE3D", + "CSS_ROTATEX", + "CSS_ROTATEY", + "CSS_ROTATEZ", + "CSS_S", + "CSS_SCALE", + "CSS_SCALE3D", + "CSS_SCALEX", + "CSS_SCALEY", + "CSS_SCALEZ", + "CSS_SKEW", + "CSS_SKEWX", + "CSS_SKEWY", + "CSS_STRING", + "CSS_TRANSLATE", + "CSS_TRANSLATE3D", + "CSS_TRANSLATEX", + "CSS_TRANSLATEY", + "CSS_TRANSLATEZ", + "CSS_UNKNOWN", + "CSS_URI", + "CSS_VALUE_LIST", + "CSS_VH", + "CSS_VMAX", + "CSS_VMIN", + "CSS_VW", + "CULL_FACE", + "CULL_FACE_MODE", + "CURRENT_PROGRAM", + "CURRENT_VERTEX_ATTRIB", + "CUSTOM", + "CW", + "CanvasGradient", + "CanvasPattern", + "CanvasRenderingContext2D", + "CaretPosition", + "ChannelMergerNode", + "ChannelSplitterNode", + "CharacterData", + "ClientRect", + "ClientRectList", + "Clipboard", + "ClipboardEvent", + "CloseEvent", + "Collator", + "CommandEvent", + "Comment", + "CompositionEvent", + "Console", + "Controllers", + "ConvolverNode", + "Counter", + "Crypto", + "CryptoKey", + "CustomEvent", + "DATABASE_ERR", + "DATA_CLONE_ERR", + "DATA_ERR", + "DBLCLICK", + "DECR", + "DECR_WRAP", + "DELETE_STATUS", + "DEPTH_ATTACHMENT", + "DEPTH_BITS", + "DEPTH_BUFFER_BIT", + "DEPTH_CLEAR_VALUE", + "DEPTH_COMPONENT", + "DEPTH_COMPONENT16", + "DEPTH_FUNC", + "DEPTH_RANGE", + "DEPTH_STENCIL", + "DEPTH_STENCIL_ATTACHMENT", + "DEPTH_TEST", + "DEPTH_WRITEMASK", + "DIRECTION_DOWN", + "DIRECTION_LEFT", + "DIRECTION_RIGHT", + "DIRECTION_UP", + "DISABLED", + "DISPATCH_REQUEST_ERR", + "DITHER", + "DOCUMENT_FRAGMENT_NODE", + "DOCUMENT_NODE", + "DOCUMENT_POSITION_CONTAINED_BY", + "DOCUMENT_POSITION_CONTAINS", + "DOCUMENT_POSITION_DISCONNECTED", + "DOCUMENT_POSITION_FOLLOWING", + "DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC", + "DOCUMENT_POSITION_PRECEDING", + "DOCUMENT_TYPE_NODE", + "DOMCursor", + "DOMError", + "DOMException", + "DOMImplementation", + "DOMImplementationLS", + "DOMMatrix", + "DOMMatrixReadOnly", + "DOMParser", + "DOMPoint", + "DOMPointReadOnly", + "DOMQuad", + "DOMRect", + "DOMRectList", + "DOMRectReadOnly", + "DOMRequest", + "DOMSTRING_SIZE_ERR", + "DOMSettableTokenList", + "DOMStringList", + "DOMStringMap", + "DOMTokenList", + "DOMTransactionEvent", + "DOM_DELTA_LINE", + "DOM_DELTA_PAGE", + "DOM_DELTA_PIXEL", + "DOM_INPUT_METHOD_DROP", + "DOM_INPUT_METHOD_HANDWRITING", + "DOM_INPUT_METHOD_IME", + "DOM_INPUT_METHOD_KEYBOARD", + "DOM_INPUT_METHOD_MULTIMODAL", + "DOM_INPUT_METHOD_OPTION", + "DOM_INPUT_METHOD_PASTE", + "DOM_INPUT_METHOD_SCRIPT", + "DOM_INPUT_METHOD_UNKNOWN", + "DOM_INPUT_METHOD_VOICE", + "DOM_KEY_LOCATION_JOYSTICK", + "DOM_KEY_LOCATION_LEFT", + "DOM_KEY_LOCATION_MOBILE", + "DOM_KEY_LOCATION_NUMPAD", + "DOM_KEY_LOCATION_RIGHT", + "DOM_KEY_LOCATION_STANDARD", + "DOM_VK_0", + "DOM_VK_1", + "DOM_VK_2", + "DOM_VK_3", + "DOM_VK_4", + "DOM_VK_5", + "DOM_VK_6", + "DOM_VK_7", + "DOM_VK_8", + "DOM_VK_9", + "DOM_VK_A", + "DOM_VK_ACCEPT", + "DOM_VK_ADD", + "DOM_VK_ALT", + "DOM_VK_ALTGR", + "DOM_VK_AMPERSAND", + "DOM_VK_ASTERISK", + "DOM_VK_AT", + "DOM_VK_ATTN", + "DOM_VK_B", + "DOM_VK_BACKSPACE", + "DOM_VK_BACK_QUOTE", + "DOM_VK_BACK_SLASH", + "DOM_VK_BACK_SPACE", + "DOM_VK_C", + "DOM_VK_CANCEL", + "DOM_VK_CAPS_LOCK", + "DOM_VK_CIRCUMFLEX", + "DOM_VK_CLEAR", + "DOM_VK_CLOSE_BRACKET", + "DOM_VK_CLOSE_CURLY_BRACKET", + "DOM_VK_CLOSE_PAREN", + "DOM_VK_COLON", + "DOM_VK_COMMA", + "DOM_VK_CONTEXT_MENU", + "DOM_VK_CONTROL", + "DOM_VK_CONVERT", + "DOM_VK_CRSEL", + "DOM_VK_CTRL", + "DOM_VK_D", + "DOM_VK_DECIMAL", + "DOM_VK_DELETE", + "DOM_VK_DIVIDE", + "DOM_VK_DOLLAR", + "DOM_VK_DOUBLE_QUOTE", + "DOM_VK_DOWN", + "DOM_VK_E", + "DOM_VK_EISU", + "DOM_VK_END", + "DOM_VK_ENTER", + "DOM_VK_EQUALS", + "DOM_VK_EREOF", + "DOM_VK_ESCAPE", + "DOM_VK_EXCLAMATION", + "DOM_VK_EXECUTE", + "DOM_VK_EXSEL", + "DOM_VK_F", + "DOM_VK_F1", + "DOM_VK_F10", + "DOM_VK_F11", + "DOM_VK_F12", + "DOM_VK_F13", + "DOM_VK_F14", + "DOM_VK_F15", + "DOM_VK_F16", + "DOM_VK_F17", + "DOM_VK_F18", + "DOM_VK_F19", + "DOM_VK_F2", + "DOM_VK_F20", + "DOM_VK_F21", + "DOM_VK_F22", + "DOM_VK_F23", + "DOM_VK_F24", + "DOM_VK_F25", + "DOM_VK_F26", + "DOM_VK_F27", + "DOM_VK_F28", + "DOM_VK_F29", + "DOM_VK_F3", + "DOM_VK_F30", + "DOM_VK_F31", + "DOM_VK_F32", + "DOM_VK_F33", + "DOM_VK_F34", + "DOM_VK_F35", + "DOM_VK_F36", + "DOM_VK_F4", + "DOM_VK_F5", + "DOM_VK_F6", + "DOM_VK_F7", + "DOM_VK_F8", + "DOM_VK_F9", + "DOM_VK_FINAL", + "DOM_VK_FRONT", + "DOM_VK_G", + "DOM_VK_GREATER_THAN", + "DOM_VK_H", + "DOM_VK_HANGUL", + "DOM_VK_HANJA", + "DOM_VK_HASH", + "DOM_VK_HELP", + "DOM_VK_HK_TOGGLE", + "DOM_VK_HOME", + "DOM_VK_HYPHEN_MINUS", + "DOM_VK_I", + "DOM_VK_INSERT", + "DOM_VK_J", + "DOM_VK_JUNJA", + "DOM_VK_K", + "DOM_VK_KANA", + "DOM_VK_KANJI", + "DOM_VK_L", + "DOM_VK_LEFT", + "DOM_VK_LEFT_TAB", + "DOM_VK_LESS_THAN", + "DOM_VK_M", + "DOM_VK_META", + "DOM_VK_MODECHANGE", + "DOM_VK_MULTIPLY", + "DOM_VK_N", + "DOM_VK_NONCONVERT", + "DOM_VK_NUMPAD0", + "DOM_VK_NUMPAD1", + "DOM_VK_NUMPAD2", + "DOM_VK_NUMPAD3", + "DOM_VK_NUMPAD4", + "DOM_VK_NUMPAD5", + "DOM_VK_NUMPAD6", + "DOM_VK_NUMPAD7", + "DOM_VK_NUMPAD8", + "DOM_VK_NUMPAD9", + "DOM_VK_NUM_LOCK", + "DOM_VK_O", + "DOM_VK_OEM_1", + "DOM_VK_OEM_102", + "DOM_VK_OEM_2", + "DOM_VK_OEM_3", + "DOM_VK_OEM_4", + "DOM_VK_OEM_5", + "DOM_VK_OEM_6", + "DOM_VK_OEM_7", + "DOM_VK_OEM_8", + "DOM_VK_OEM_COMMA", + "DOM_VK_OEM_MINUS", + "DOM_VK_OEM_PERIOD", + "DOM_VK_OEM_PLUS", + "DOM_VK_OPEN_BRACKET", + "DOM_VK_OPEN_CURLY_BRACKET", + "DOM_VK_OPEN_PAREN", + "DOM_VK_P", + "DOM_VK_PA1", + "DOM_VK_PAGEDOWN", + "DOM_VK_PAGEUP", + "DOM_VK_PAGE_DOWN", + "DOM_VK_PAGE_UP", + "DOM_VK_PAUSE", + "DOM_VK_PERCENT", + "DOM_VK_PERIOD", + "DOM_VK_PIPE", + "DOM_VK_PLAY", + "DOM_VK_PLUS", + "DOM_VK_PRINT", + "DOM_VK_PRINTSCREEN", + "DOM_VK_PROCESSKEY", + "DOM_VK_PROPERITES", + "DOM_VK_Q", + "DOM_VK_QUESTION_MARK", + "DOM_VK_QUOTE", + "DOM_VK_R", + "DOM_VK_REDO", + "DOM_VK_RETURN", + "DOM_VK_RIGHT", + "DOM_VK_S", + "DOM_VK_SCROLL_LOCK", + "DOM_VK_SELECT", + "DOM_VK_SEMICOLON", + "DOM_VK_SEPARATOR", + "DOM_VK_SHIFT", + "DOM_VK_SLASH", + "DOM_VK_SLEEP", + "DOM_VK_SPACE", + "DOM_VK_SUBTRACT", + "DOM_VK_T", + "DOM_VK_TAB", + "DOM_VK_TILDE", + "DOM_VK_U", + "DOM_VK_UNDERSCORE", + "DOM_VK_UNDO", + "DOM_VK_UNICODE", + "DOM_VK_UP", + "DOM_VK_V", + "DOM_VK_VOLUME_DOWN", + "DOM_VK_VOLUME_MUTE", + "DOM_VK_VOLUME_UP", + "DOM_VK_W", + "DOM_VK_WIN", + "DOM_VK_WINDOW", + "DOM_VK_WIN_ICO_00", + "DOM_VK_WIN_ICO_CLEAR", + "DOM_VK_WIN_ICO_HELP", + "DOM_VK_WIN_OEM_ATTN", + "DOM_VK_WIN_OEM_AUTO", + "DOM_VK_WIN_OEM_BACKTAB", + "DOM_VK_WIN_OEM_CLEAR", + "DOM_VK_WIN_OEM_COPY", + "DOM_VK_WIN_OEM_CUSEL", + "DOM_VK_WIN_OEM_ENLW", + "DOM_VK_WIN_OEM_FINISH", + "DOM_VK_WIN_OEM_FJ_JISHO", + "DOM_VK_WIN_OEM_FJ_LOYA", + "DOM_VK_WIN_OEM_FJ_MASSHOU", + "DOM_VK_WIN_OEM_FJ_ROYA", + "DOM_VK_WIN_OEM_FJ_TOUROKU", + "DOM_VK_WIN_OEM_JUMP", + "DOM_VK_WIN_OEM_PA1", + "DOM_VK_WIN_OEM_PA2", + "DOM_VK_WIN_OEM_PA3", + "DOM_VK_WIN_OEM_RESET", + "DOM_VK_WIN_OEM_WSCTRL", + "DOM_VK_X", + "DOM_VK_XF86XK_ADD_FAVORITE", + "DOM_VK_XF86XK_APPLICATION_LEFT", + "DOM_VK_XF86XK_APPLICATION_RIGHT", + "DOM_VK_XF86XK_AUDIO_CYCLE_TRACK", + "DOM_VK_XF86XK_AUDIO_FORWARD", + "DOM_VK_XF86XK_AUDIO_LOWER_VOLUME", + "DOM_VK_XF86XK_AUDIO_MEDIA", + "DOM_VK_XF86XK_AUDIO_MUTE", + "DOM_VK_XF86XK_AUDIO_NEXT", + "DOM_VK_XF86XK_AUDIO_PAUSE", + "DOM_VK_XF86XK_AUDIO_PLAY", + "DOM_VK_XF86XK_AUDIO_PREV", + "DOM_VK_XF86XK_AUDIO_RAISE_VOLUME", + "DOM_VK_XF86XK_AUDIO_RANDOM_PLAY", + "DOM_VK_XF86XK_AUDIO_RECORD", + "DOM_VK_XF86XK_AUDIO_REPEAT", + "DOM_VK_XF86XK_AUDIO_REWIND", + "DOM_VK_XF86XK_AUDIO_STOP", + "DOM_VK_XF86XK_AWAY", + "DOM_VK_XF86XK_BACK", + "DOM_VK_XF86XK_BACK_FORWARD", + "DOM_VK_XF86XK_BATTERY", + "DOM_VK_XF86XK_BLUE", + "DOM_VK_XF86XK_BLUETOOTH", + "DOM_VK_XF86XK_BOOK", + "DOM_VK_XF86XK_BRIGHTNESS_ADJUST", + "DOM_VK_XF86XK_CALCULATOR", + "DOM_VK_XF86XK_CALENDAR", + "DOM_VK_XF86XK_CD", + "DOM_VK_XF86XK_CLOSE", + "DOM_VK_XF86XK_COMMUNITY", + "DOM_VK_XF86XK_CONTRAST_ADJUST", + "DOM_VK_XF86XK_COPY", + "DOM_VK_XF86XK_CUT", + "DOM_VK_XF86XK_CYCLE_ANGLE", + "DOM_VK_XF86XK_DISPLAY", + "DOM_VK_XF86XK_DOCUMENTS", + "DOM_VK_XF86XK_DOS", + "DOM_VK_XF86XK_EJECT", + "DOM_VK_XF86XK_EXCEL", + "DOM_VK_XF86XK_EXPLORER", + "DOM_VK_XF86XK_FAVORITES", + "DOM_VK_XF86XK_FINANCE", + "DOM_VK_XF86XK_FORWARD", + "DOM_VK_XF86XK_FRAME_BACK", + "DOM_VK_XF86XK_FRAME_FORWARD", + "DOM_VK_XF86XK_GAME", + "DOM_VK_XF86XK_GO", + "DOM_VK_XF86XK_GREEN", + "DOM_VK_XF86XK_HIBERNATE", + "DOM_VK_XF86XK_HISTORY", + "DOM_VK_XF86XK_HOME_PAGE", + "DOM_VK_XF86XK_HOT_LINKS", + "DOM_VK_XF86XK_I_TOUCH", + "DOM_VK_XF86XK_KBD_BRIGHTNESS_DOWN", + "DOM_VK_XF86XK_KBD_BRIGHTNESS_UP", + "DOM_VK_XF86XK_KBD_LIGHT_ON_OFF", + "DOM_VK_XF86XK_LAUNCH0", + "DOM_VK_XF86XK_LAUNCH1", + "DOM_VK_XF86XK_LAUNCH2", + "DOM_VK_XF86XK_LAUNCH3", + "DOM_VK_XF86XK_LAUNCH4", + "DOM_VK_XF86XK_LAUNCH5", + "DOM_VK_XF86XK_LAUNCH6", + "DOM_VK_XF86XK_LAUNCH7", + "DOM_VK_XF86XK_LAUNCH8", + "DOM_VK_XF86XK_LAUNCH9", + "DOM_VK_XF86XK_LAUNCH_A", + "DOM_VK_XF86XK_LAUNCH_B", + "DOM_VK_XF86XK_LAUNCH_C", + "DOM_VK_XF86XK_LAUNCH_D", + "DOM_VK_XF86XK_LAUNCH_E", + "DOM_VK_XF86XK_LAUNCH_F", + "DOM_VK_XF86XK_LIGHT_BULB", + "DOM_VK_XF86XK_LOG_OFF", + "DOM_VK_XF86XK_MAIL", + "DOM_VK_XF86XK_MAIL_FORWARD", + "DOM_VK_XF86XK_MARKET", + "DOM_VK_XF86XK_MEETING", + "DOM_VK_XF86XK_MEMO", + "DOM_VK_XF86XK_MENU_KB", + "DOM_VK_XF86XK_MENU_PB", + "DOM_VK_XF86XK_MESSENGER", + "DOM_VK_XF86XK_MON_BRIGHTNESS_DOWN", + "DOM_VK_XF86XK_MON_BRIGHTNESS_UP", + "DOM_VK_XF86XK_MUSIC", + "DOM_VK_XF86XK_MY_COMPUTER", + "DOM_VK_XF86XK_MY_SITES", + "DOM_VK_XF86XK_NEW", + "DOM_VK_XF86XK_NEWS", + "DOM_VK_XF86XK_OFFICE_HOME", + "DOM_VK_XF86XK_OPEN", + "DOM_VK_XF86XK_OPEN_URL", + "DOM_VK_XF86XK_OPTION", + "DOM_VK_XF86XK_PASTE", + "DOM_VK_XF86XK_PHONE", + "DOM_VK_XF86XK_PICTURES", + "DOM_VK_XF86XK_POWER_DOWN", + "DOM_VK_XF86XK_POWER_OFF", + "DOM_VK_XF86XK_RED", + "DOM_VK_XF86XK_REFRESH", + "DOM_VK_XF86XK_RELOAD", + "DOM_VK_XF86XK_REPLY", + "DOM_VK_XF86XK_ROCKER_DOWN", + "DOM_VK_XF86XK_ROCKER_ENTER", + "DOM_VK_XF86XK_ROCKER_UP", + "DOM_VK_XF86XK_ROTATE_WINDOWS", + "DOM_VK_XF86XK_ROTATION_KB", + "DOM_VK_XF86XK_ROTATION_PB", + "DOM_VK_XF86XK_SAVE", + "DOM_VK_XF86XK_SCREEN_SAVER", + "DOM_VK_XF86XK_SCROLL_CLICK", + "DOM_VK_XF86XK_SCROLL_DOWN", + "DOM_VK_XF86XK_SCROLL_UP", + "DOM_VK_XF86XK_SEARCH", + "DOM_VK_XF86XK_SEND", + "DOM_VK_XF86XK_SHOP", + "DOM_VK_XF86XK_SPELL", + "DOM_VK_XF86XK_SPLIT_SCREEN", + "DOM_VK_XF86XK_STANDBY", + "DOM_VK_XF86XK_START", + "DOM_VK_XF86XK_STOP", + "DOM_VK_XF86XK_SUBTITLE", + "DOM_VK_XF86XK_SUPPORT", + "DOM_VK_XF86XK_SUSPEND", + "DOM_VK_XF86XK_TASK_PANE", + "DOM_VK_XF86XK_TERMINAL", + "DOM_VK_XF86XK_TIME", + "DOM_VK_XF86XK_TOOLS", + "DOM_VK_XF86XK_TOP_MENU", + "DOM_VK_XF86XK_TO_DO_LIST", + "DOM_VK_XF86XK_TRAVEL", + "DOM_VK_XF86XK_USER1KB", + "DOM_VK_XF86XK_USER2KB", + "DOM_VK_XF86XK_USER_PB", + "DOM_VK_XF86XK_UWB", + "DOM_VK_XF86XK_VENDOR_HOME", + "DOM_VK_XF86XK_VIDEO", + "DOM_VK_XF86XK_VIEW", + "DOM_VK_XF86XK_WAKE_UP", + "DOM_VK_XF86XK_WEB_CAM", + "DOM_VK_XF86XK_WHEEL_BUTTON", + "DOM_VK_XF86XK_WLAN", + "DOM_VK_XF86XK_WORD", + "DOM_VK_XF86XK_WWW", + "DOM_VK_XF86XK_XFER", + "DOM_VK_XF86XK_YELLOW", + "DOM_VK_XF86XK_ZOOM_IN", + "DOM_VK_XF86XK_ZOOM_OUT", + "DOM_VK_Y", + "DOM_VK_Z", + "DOM_VK_ZOOM", + "DONE", + "DONT_CARE", + "DOWNLOADING", + "DRAGDROP", + "DST_ALPHA", + "DST_COLOR", + "DYNAMIC_DRAW", + "DataChannel", + "DataTransfer", + "DataTransferItem", + "DataTransferItemList", + "DataView", + "Date", + "DateTimeFormat", + "DelayNode", + "DesktopNotification", + "DesktopNotificationCenter", + "DeviceLightEvent", + "DeviceMotionEvent", + "DeviceOrientationEvent", + "DeviceProximityEvent", + "DeviceStorage", + "DeviceStorageChangeEvent", + "Document", + "DocumentFragment", + "DocumentType", + "DragEvent", + "DynamicsCompressorNode", + "E", + "ELEMENT_ARRAY_BUFFER", + "ELEMENT_ARRAY_BUFFER_BINDING", + "ELEMENT_NODE", + "EMPTY", + "ENCODING_ERR", + "ENDED", + "END_TO_END", + "END_TO_START", + "ENTITY_NODE", + "ENTITY_REFERENCE_NODE", + "EPSILON", + "EQUAL", + "EQUALPOWER", + "ERROR", + "EXPONENTIAL_DISTANCE", + "Element", + "ElementQuery", + "Entity", + "EntityReference", + "Error", + "ErrorEvent", + "EvalError", + "Event", + "EventException", + "EventSource", + "EventTarget", + "External", + "FASTEST", + "FIDOSDK", + "FILTER_ACCEPT", + "FILTER_INTERRUPT", + "FILTER_REJECT", + "FILTER_SKIP", + "FINISHED_STATE", + "FIRST_ORDERED_NODE_TYPE", + "FLOAT", + "FLOAT_MAT2", + "FLOAT_MAT3", + "FLOAT_MAT4", + "FLOAT_VEC2", + "FLOAT_VEC3", + "FLOAT_VEC4", + "FOCUS", + "FONT_FACE_RULE", + "FONT_FEATURE_VALUES_RULE", + "FRAGMENT_SHADER", + "FRAGMENT_SHADER_DERIVATIVE_HINT_OES", + "FRAMEBUFFER", + "FRAMEBUFFER_ATTACHMENT_OBJECT_NAME", + "FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE", + "FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE", + "FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL", + "FRAMEBUFFER_BINDING", + "FRAMEBUFFER_COMPLETE", + "FRAMEBUFFER_INCOMPLETE_ATTACHMENT", + "FRAMEBUFFER_INCOMPLETE_DIMENSIONS", + "FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT", + "FRAMEBUFFER_UNSUPPORTED", + "FRONT", + "FRONT_AND_BACK", + "FRONT_FACE", + "FUNC_ADD", + "FUNC_REVERSE_SUBTRACT", + "FUNC_SUBTRACT", + "Feed", + "FeedEntry", + "File", + "FileError", + "FileList", + "FileReader", + "FindInPage", + "Float32Array", + "Float64Array", + "FocusEvent", + "FontFace", + "FormData", + "Function", + "GENERATE_MIPMAP_HINT", + "GEQUAL", + "GREATER", + "GREEN_BITS", + "GainNode", + "Gamepad", + "GamepadButton", + "GamepadEvent", + "GestureEvent", + "HAVE_CURRENT_DATA", + "HAVE_ENOUGH_DATA", + "HAVE_FUTURE_DATA", + "HAVE_METADATA", + "HAVE_NOTHING", + "HEADERS_RECEIVED", + "HIDDEN", + "HIERARCHY_REQUEST_ERR", + "HIGHPASS", + "HIGHSHELF", + "HIGH_FLOAT", + "HIGH_INT", + "HORIZONTAL", + "HORIZONTAL_AXIS", + "HRTF", + "HTMLAllCollection", + "HTMLAnchorElement", + "HTMLAppletElement", + "HTMLAreaElement", + "HTMLAudioElement", + "HTMLBRElement", + "HTMLBaseElement", + "HTMLBaseFontElement", + "HTMLBlockquoteElement", + "HTMLBodyElement", + "HTMLButtonElement", + "HTMLCanvasElement", + "HTMLCollection", + "HTMLCommandElement", + "HTMLContentElement", + "HTMLDListElement", + "HTMLDataElement", + "HTMLDataListElement", + "HTMLDetailsElement", + "HTMLDialogElement", + "HTMLDirectoryElement", + "HTMLDivElement", + "HTMLDocument", + "HTMLElement", + "HTMLEmbedElement", + "HTMLFieldSetElement", + "HTMLFontElement", + "HTMLFormControlsCollection", + "HTMLFormElement", + "HTMLFrameElement", + "HTMLFrameSetElement", + "HTMLHRElement", + "HTMLHeadElement", + "HTMLHeadingElement", + "HTMLHtmlElement", + "HTMLIFrameElement", + "HTMLImageElement", + "HTMLInputElement", + "HTMLIsIndexElement", + "HTMLKeygenElement", + "HTMLLIElement", + "HTMLLabelElement", + "HTMLLegendElement", + "HTMLLinkElement", + "HTMLMapElement", + "HTMLMarqueeElement", + "HTMLMediaElement", + "HTMLMenuElement", + "HTMLMenuItemElement", + "HTMLMetaElement", + "HTMLMeterElement", + "HTMLModElement", + "HTMLOListElement", + "HTMLObjectElement", + "HTMLOptGroupElement", + "HTMLOptionElement", + "HTMLOptionsCollection", + "HTMLOutputElement", + "HTMLParagraphElement", + "HTMLParamElement", + "HTMLPictureElement", + "HTMLPreElement", + "HTMLProgressElement", + "HTMLPropertiesCollection", + "HTMLQuoteElement", + "HTMLScriptElement", + "HTMLSelectElement", + "HTMLShadowElement", + "HTMLSourceElement", + "HTMLSpanElement", + "HTMLStyleElement", + "HTMLTableCaptionElement", + "HTMLTableCellElement", + "HTMLTableColElement", + "HTMLTableElement", + "HTMLTableRowElement", + "HTMLTableSectionElement", + "HTMLTemplateElement", + "HTMLTextAreaElement", + "HTMLTimeElement", + "HTMLTitleElement", + "HTMLTrackElement", + "HTMLUListElement", + "HTMLUnknownElement", + "HTMLVideoElement", + "HashChangeEvent", + "Headers", + "History", + "ICE_CHECKING", + "ICE_CLOSED", + "ICE_COMPLETED", + "ICE_CONNECTED", + "ICE_FAILED", + "ICE_GATHERING", + "ICE_WAITING", + "IDBCursor", + "IDBCursorWithValue", + "IDBDatabase", + "IDBDatabaseException", + "IDBFactory", + "IDBFileHandle", + "IDBFileRequest", + "IDBIndex", + "IDBKeyRange", + "IDBMutableFile", + "IDBObjectStore", + "IDBOpenDBRequest", + "IDBRequest", + "IDBTransaction", + "IDBVersionChangeEvent", + "IDLE", + "IMPLEMENTATION_COLOR_READ_FORMAT", + "IMPLEMENTATION_COLOR_READ_TYPE", + "IMPORT_RULE", + "INCR", + "INCR_WRAP", + "INDEX_SIZE_ERR", + "INT", + "INT_VEC2", + "INT_VEC3", + "INT_VEC4", + "INUSE_ATTRIBUTE_ERR", + "INVALID_ACCESS_ERR", + "INVALID_CHARACTER_ERR", + "INVALID_ENUM", + "INVALID_EXPRESSION_ERR", + "INVALID_FRAMEBUFFER_OPERATION", + "INVALID_MODIFICATION_ERR", + "INVALID_NODE_TYPE_ERR", + "INVALID_OPERATION", + "INVALID_STATE_ERR", + "INVALID_VALUE", + "INVERSE_DISTANCE", + "INVERT", + "IceCandidate", + "Image", + "ImageBitmap", + "ImageData", + "Infinity", + "InputEvent", + "InputMethodContext", + "InstallTrigger", + "Int16Array", + "Int32Array", + "Int8Array", + "Intent", + "InternalError", + "Intl", + "IsSearchProviderInstalled", + "Iterator", + "JSON", + "KEEP", + "KEYDOWN", + "KEYFRAMES_RULE", + "KEYFRAME_RULE", + "KEYPRESS", + "KEYUP", + "KeyEvent", + "KeyboardEvent", + "LENGTHADJUST_SPACING", + "LENGTHADJUST_SPACINGANDGLYPHS", + "LENGTHADJUST_UNKNOWN", + "LEQUAL", + "LESS", + "LINEAR", + "LINEAR_DISTANCE", + "LINEAR_MIPMAP_LINEAR", + "LINEAR_MIPMAP_NEAREST", + "LINES", + "LINE_LOOP", + "LINE_STRIP", + "LINE_WIDTH", + "LINK_STATUS", + "LIVE", + "LN10", + "LN2", + "LOADED", + "LOADING", + "LOG10E", + "LOG2E", + "LOWPASS", + "LOWSHELF", + "LOW_FLOAT", + "LOW_INT", + "LSException", + "LSParserFilter", + "LUMINANCE", + "LUMINANCE_ALPHA", + "LocalMediaStream", + "Location", + "MAX_COMBINED_TEXTURE_IMAGE_UNITS", + "MAX_CUBE_MAP_TEXTURE_SIZE", + "MAX_FRAGMENT_UNIFORM_VECTORS", + "MAX_RENDERBUFFER_SIZE", + "MAX_SAFE_INTEGER", + "MAX_TEXTURE_IMAGE_UNITS", + "MAX_TEXTURE_MAX_ANISOTROPY_EXT", + "MAX_TEXTURE_SIZE", + "MAX_VALUE", + "MAX_VARYING_VECTORS", + "MAX_VERTEX_ATTRIBS", + "MAX_VERTEX_TEXTURE_IMAGE_UNITS", + "MAX_VERTEX_UNIFORM_VECTORS", + "MAX_VIEWPORT_DIMS", + "MEDIA_ERR_ABORTED", + "MEDIA_ERR_DECODE", + "MEDIA_ERR_ENCRYPTED", + "MEDIA_ERR_NETWORK", + "MEDIA_ERR_SRC_NOT_SUPPORTED", + "MEDIA_KEYERR_CLIENT", + "MEDIA_KEYERR_DOMAIN", + "MEDIA_KEYERR_HARDWARECHANGE", + "MEDIA_KEYERR_OUTPUT", + "MEDIA_KEYERR_SERVICE", + "MEDIA_KEYERR_UNKNOWN", + "MEDIA_RULE", + "MEDIUM_FLOAT", + "MEDIUM_INT", + "META_MASK", + "MIN_SAFE_INTEGER", + "MIN_VALUE", + "MIRRORED_REPEAT", + "MODE_ASYNCHRONOUS", + "MODE_SYNCHRONOUS", + "MODIFICATION", + "MOUSEDOWN", + "MOUSEDRAG", + "MOUSEMOVE", + "MOUSEOUT", + "MOUSEOVER", + "MOUSEUP", + "MOZ_KEYFRAMES_RULE", + "MOZ_KEYFRAME_RULE", + "MOZ_SOURCE_CURSOR", + "MOZ_SOURCE_ERASER", + "MOZ_SOURCE_KEYBOARD", + "MOZ_SOURCE_MOUSE", + "MOZ_SOURCE_PEN", + "MOZ_SOURCE_TOUCH", + "MOZ_SOURCE_UNKNOWN", + "MSGESTURE_FLAG_BEGIN", + "MSGESTURE_FLAG_CANCEL", + "MSGESTURE_FLAG_END", + "MSGESTURE_FLAG_INERTIA", + "MSGESTURE_FLAG_NONE", + "MSPOINTER_TYPE_MOUSE", + "MSPOINTER_TYPE_PEN", + "MSPOINTER_TYPE_TOUCH", + "MS_ASYNC_CALLBACK_STATUS_ASSIGN_DELEGATE", + "MS_ASYNC_CALLBACK_STATUS_CANCEL", + "MS_ASYNC_CALLBACK_STATUS_CHOOSEANY", + "MS_ASYNC_CALLBACK_STATUS_ERROR", + "MS_ASYNC_CALLBACK_STATUS_JOIN", + "MS_ASYNC_OP_STATUS_CANCELED", + "MS_ASYNC_OP_STATUS_ERROR", + "MS_ASYNC_OP_STATUS_SUCCESS", + "MS_MANIPULATION_STATE_ACTIVE", + "MS_MANIPULATION_STATE_CANCELLED", + "MS_MANIPULATION_STATE_COMMITTED", + "MS_MANIPULATION_STATE_DRAGGING", + "MS_MANIPULATION_STATE_INERTIA", + "MS_MANIPULATION_STATE_PRESELECT", + "MS_MANIPULATION_STATE_SELECTING", + "MS_MANIPULATION_STATE_STOPPED", + "MS_MEDIA_ERR_ENCRYPTED", + "MS_MEDIA_KEYERR_CLIENT", + "MS_MEDIA_KEYERR_DOMAIN", + "MS_MEDIA_KEYERR_HARDWARECHANGE", + "MS_MEDIA_KEYERR_OUTPUT", + "MS_MEDIA_KEYERR_SERVICE", + "MS_MEDIA_KEYERR_UNKNOWN", + "Map", + "Math", + "MediaController", + "MediaDevices", + "MediaElementAudioSourceNode", + "MediaEncryptedEvent", + "MediaError", + "MediaKeyError", + "MediaKeyEvent", + "MediaKeyMessageEvent", + "MediaKeyNeededEvent", + "MediaKeySession", + "MediaKeyStatusMap", + "MediaKeySystemAccess", + "MediaKeys", + "MediaList", + "MediaQueryList", + "MediaQueryListEvent", + "MediaRecorder", + "MediaSource", + "MediaStream", + "MediaStreamAudioDestinationNode", + "MediaStreamAudioSourceNode", + "MediaStreamEvent", + "MediaStreamTrack", + "MediaStreamTrackEvent", + "MessageChannel", + "MessageEvent", + "MessagePort", + "Methods", + "MimeType", + "MimeTypeArray", + "MouseEvent", + "MouseScrollEvent", + "MozAnimation", + "MozAnimationDelay", + "MozAnimationDirection", + "MozAnimationDuration", + "MozAnimationFillMode", + "MozAnimationIterationCount", + "MozAnimationName", + "MozAnimationPlayState", + "MozAnimationTimingFunction", + "MozAppearance", + "MozBackfaceVisibility", + "MozBinding", + "MozBorderBottomColors", + "MozBorderEnd", + "MozBorderEndColor", + "MozBorderEndStyle", + "MozBorderEndWidth", + "MozBorderImage", + "MozBorderLeftColors", + "MozBorderRightColors", + "MozBorderStart", + "MozBorderStartColor", + "MozBorderStartStyle", + "MozBorderStartWidth", + "MozBorderTopColors", + "MozBoxAlign", + "MozBoxDirection", + "MozBoxFlex", + "MozBoxOrdinalGroup", + "MozBoxOrient", + "MozBoxPack", + "MozBoxSizing", + "MozCSSKeyframeRule", + "MozCSSKeyframesRule", + "MozColumnCount", + "MozColumnFill", + "MozColumnGap", + "MozColumnRule", + "MozColumnRuleColor", + "MozColumnRuleStyle", + "MozColumnRuleWidth", + "MozColumnWidth", + "MozColumns", + "MozContactChangeEvent", + "MozFloatEdge", + "MozFontFeatureSettings", + "MozFontLanguageOverride", + "MozForceBrokenImageIcon", + "MozHyphens", + "MozImageRegion", + "MozMarginEnd", + "MozMarginStart", + "MozMmsEvent", + "MozMmsMessage", + "MozMobileMessageThread", + "MozOSXFontSmoothing", + "MozOrient", + "MozOutlineRadius", + "MozOutlineRadiusBottomleft", + "MozOutlineRadiusBottomright", + "MozOutlineRadiusTopleft", + "MozOutlineRadiusTopright", + "MozPaddingEnd", + "MozPaddingStart", + "MozPerspective", + "MozPerspectiveOrigin", + "MozPowerManager", + "MozSettingsEvent", + "MozSmsEvent", + "MozSmsMessage", + "MozStackSizing", + "MozTabSize", + "MozTextAlignLast", + "MozTextDecorationColor", + "MozTextDecorationLine", + "MozTextDecorationStyle", + "MozTextSizeAdjust", + "MozTransform", + "MozTransformOrigin", + "MozTransformStyle", + "MozTransition", + "MozTransitionDelay", + "MozTransitionDuration", + "MozTransitionProperty", + "MozTransitionTimingFunction", + "MozUserFocus", + "MozUserInput", + "MozUserModify", + "MozUserSelect", + "MozWindowDragging", + "MozWindowShadow", + "MutationEvent", + "MutationObserver", + "MutationRecord", + "NAMESPACE_ERR", + "NAMESPACE_RULE", + "NEAREST", + "NEAREST_MIPMAP_LINEAR", + "NEAREST_MIPMAP_NEAREST", + "NEGATIVE_INFINITY", + "NETWORK_EMPTY", + "NETWORK_ERR", + "NETWORK_IDLE", + "NETWORK_LOADED", + "NETWORK_LOADING", + "NETWORK_NO_SOURCE", + "NEVER", + "NEW", + "NEXT", + "NEXT_NO_DUPLICATE", + "NICEST", + "NODE_AFTER", + "NODE_BEFORE", + "NODE_BEFORE_AND_AFTER", + "NODE_INSIDE", + "NONE", + "NON_TRANSIENT_ERR", + "NOTATION_NODE", + "NOTCH", + "NOTEQUAL", + "NOT_ALLOWED_ERR", + "NOT_FOUND_ERR", + "NOT_READABLE_ERR", + "NOT_SUPPORTED_ERR", + "NO_DATA_ALLOWED_ERR", + "NO_ERR", + "NO_ERROR", + "NO_MODIFICATION_ALLOWED_ERR", + "NUMBER_TYPE", + "NUM_COMPRESSED_TEXTURE_FORMATS", + "NaN", + "NamedNodeMap", + "Navigator", + "NearbyLinks", + "NetworkInformation", + "Node", + "NodeFilter", + "NodeIterator", + "NodeList", + "Notation", + "Notification", + "NotifyPaintEvent", + "Number", + "NumberFormat", + "OBSOLETE", + "ONE", + "ONE_MINUS_CONSTANT_ALPHA", + "ONE_MINUS_CONSTANT_COLOR", + "ONE_MINUS_DST_ALPHA", + "ONE_MINUS_DST_COLOR", + "ONE_MINUS_SRC_ALPHA", + "ONE_MINUS_SRC_COLOR", + "OPEN", + "OPENED", + "OPENING", + "ORDERED_NODE_ITERATOR_TYPE", + "ORDERED_NODE_SNAPSHOT_TYPE", + "OUT_OF_MEMORY", + "Object", + "OfflineAudioCompletionEvent", + "OfflineAudioContext", + "OfflineResourceList", + "Option", + "OscillatorNode", + "OverflowEvent", + "PACK_ALIGNMENT", + "PAGE_RULE", + "PARSE_ERR", + "PATHSEG_ARC_ABS", + "PATHSEG_ARC_REL", + "PATHSEG_CLOSEPATH", + "PATHSEG_CURVETO_CUBIC_ABS", + "PATHSEG_CURVETO_CUBIC_REL", + "PATHSEG_CURVETO_CUBIC_SMOOTH_ABS", + "PATHSEG_CURVETO_CUBIC_SMOOTH_REL", + "PATHSEG_CURVETO_QUADRATIC_ABS", + "PATHSEG_CURVETO_QUADRATIC_REL", + "PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS", + "PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL", + "PATHSEG_LINETO_ABS", + "PATHSEG_LINETO_HORIZONTAL_ABS", + "PATHSEG_LINETO_HORIZONTAL_REL", + "PATHSEG_LINETO_REL", + "PATHSEG_LINETO_VERTICAL_ABS", + "PATHSEG_LINETO_VERTICAL_REL", + "PATHSEG_MOVETO_ABS", + "PATHSEG_MOVETO_REL", + "PATHSEG_UNKNOWN", + "PATH_EXISTS_ERR", + "PEAKING", + "PERMISSION_DENIED", + "PERSISTENT", + "PI", + "PLAYING_STATE", + "POINTS", + "POLYGON_OFFSET_FACTOR", + "POLYGON_OFFSET_FILL", + "POLYGON_OFFSET_UNITS", + "POSITION_UNAVAILABLE", + "POSITIVE_INFINITY", + "PREV", + "PREV_NO_DUPLICATE", + "PROCESSING_INSTRUCTION_NODE", + "PageChangeEvent", + "PageTransitionEvent", + "PaintRequest", + "PaintRequestList", + "PannerNode", + "Path2D", + "Performance", + "PerformanceEntry", + "PerformanceMark", + "PerformanceMeasure", + "PerformanceNavigation", + "PerformanceResourceTiming", + "PerformanceTiming", + "PeriodicWave", + "Plugin", + "PluginArray", + "PopStateEvent", + "PopupBlockedEvent", + "ProcessingInstruction", + "ProgressEvent", + "Promise", + "PropertyNodeList", + "Proxy", + "PushManager", + "PushSubscription", + "Q", + "QUOTA_ERR", + "QUOTA_EXCEEDED_ERR", + "QueryInterface", + "READ_ONLY", + "READ_ONLY_ERR", + "READ_WRITE", + "RED_BITS", + "REMOVAL", + "RENDERBUFFER", + "RENDERBUFFER_ALPHA_SIZE", + "RENDERBUFFER_BINDING", + "RENDERBUFFER_BLUE_SIZE", + "RENDERBUFFER_DEPTH_SIZE", + "RENDERBUFFER_GREEN_SIZE", + "RENDERBUFFER_HEIGHT", + "RENDERBUFFER_INTERNAL_FORMAT", + "RENDERBUFFER_RED_SIZE", + "RENDERBUFFER_STENCIL_SIZE", + "RENDERBUFFER_WIDTH", + "RENDERER", + "RENDERING_INTENT_ABSOLUTE_COLORIMETRIC", + "RENDERING_INTENT_AUTO", + "RENDERING_INTENT_PERCEPTUAL", + "RENDERING_INTENT_RELATIVE_COLORIMETRIC", + "RENDERING_INTENT_SATURATION", + "RENDERING_INTENT_UNKNOWN", + "REPEAT", + "REPLACE", + "RGB", + "RGB565", + "RGB5_A1", + "RGBA", + "RGBA4", + "RGBColor", + "ROTATION_CLOCKWISE", + "ROTATION_COUNTERCLOCKWISE", + "RTCDataChannelEvent", + "RTCIceCandidate", + "RTCPeerConnectionIceEvent", + "RTCRtpReceiver", + "RTCRtpSender", + "RTCSessionDescription", + "RTCStatsReport", + "RadioNodeList", + "Range", + "RangeError", + "RangeException", + "RecordErrorEvent", + "Rect", + "ReferenceError", + "RegExp", + "Request", + "Response", + "SAMPLER_2D", + "SAMPLER_CUBE", + "SAMPLES", + "SAMPLE_ALPHA_TO_COVERAGE", + "SAMPLE_BUFFERS", + "SAMPLE_COVERAGE", + "SAMPLE_COVERAGE_INVERT", + "SAMPLE_COVERAGE_VALUE", + "SAWTOOTH", + "SCHEDULED_STATE", + "SCISSOR_BOX", + "SCISSOR_TEST", + "SCROLL_PAGE_DOWN", + "SCROLL_PAGE_UP", + "SDP_ANSWER", + "SDP_OFFER", + "SDP_PRANSWER", + "SECURITY_ERR", + "SELECT", + "SERIALIZE_ERR", + "SEVERITY_ERROR", + "SEVERITY_FATAL_ERROR", + "SEVERITY_WARNING", + "SHADER_COMPILER", + "SHADER_TYPE", + "SHADING_LANGUAGE_VERSION", + "SHIFT_MASK", + "SHORT", + "SHOWING", + "SHOW_ALL", + "SHOW_ATTRIBUTE", + "SHOW_CDATA_SECTION", + "SHOW_COMMENT", + "SHOW_DOCUMENT", + "SHOW_DOCUMENT_FRAGMENT", + "SHOW_DOCUMENT_TYPE", + "SHOW_ELEMENT", + "SHOW_ENTITY", + "SHOW_ENTITY_REFERENCE", + "SHOW_NOTATION", + "SHOW_PROCESSING_INSTRUCTION", + "SHOW_TEXT", + "SINE", + "SOUNDFIELD", + "SQLException", + "SQRT1_2", + "SQRT2", + "SQUARE", + "SRC_ALPHA", + "SRC_ALPHA_SATURATE", + "SRC_COLOR", + "START_TO_END", + "START_TO_START", + "STATIC_DRAW", + "STENCIL_ATTACHMENT", + "STENCIL_BACK_FAIL", + "STENCIL_BACK_FUNC", + "STENCIL_BACK_PASS_DEPTH_FAIL", + "STENCIL_BACK_PASS_DEPTH_PASS", + "STENCIL_BACK_REF", + "STENCIL_BACK_VALUE_MASK", + "STENCIL_BACK_WRITEMASK", + "STENCIL_BITS", + "STENCIL_BUFFER_BIT", + "STENCIL_CLEAR_VALUE", + "STENCIL_FAIL", + "STENCIL_FUNC", + "STENCIL_INDEX", + "STENCIL_INDEX8", + "STENCIL_PASS_DEPTH_FAIL", + "STENCIL_PASS_DEPTH_PASS", + "STENCIL_REF", + "STENCIL_TEST", + "STENCIL_VALUE_MASK", + "STENCIL_WRITEMASK", + "STREAM_DRAW", + "STRING_TYPE", + "STYLE_RULE", + "SUBPIXEL_BITS", + "SUPPORTS_RULE", + "SVGAElement", + "SVGAltGlyphDefElement", + "SVGAltGlyphElement", + "SVGAltGlyphItemElement", + "SVGAngle", + "SVGAnimateColorElement", + "SVGAnimateElement", + "SVGAnimateMotionElement", + "SVGAnimateTransformElement", + "SVGAnimatedAngle", + "SVGAnimatedBoolean", + "SVGAnimatedEnumeration", + "SVGAnimatedInteger", + "SVGAnimatedLength", + "SVGAnimatedLengthList", + "SVGAnimatedNumber", + "SVGAnimatedNumberList", + "SVGAnimatedPreserveAspectRatio", + "SVGAnimatedRect", + "SVGAnimatedString", + "SVGAnimatedTransformList", + "SVGAnimationElement", + "SVGCircleElement", + "SVGClipPathElement", + "SVGColor", + "SVGComponentTransferFunctionElement", + "SVGCursorElement", + "SVGDefsElement", + "SVGDescElement", + "SVGDiscardElement", + "SVGDocument", + "SVGElement", + "SVGElementInstance", + "SVGElementInstanceList", + "SVGEllipseElement", + "SVGException", + "SVGFEBlendElement", + "SVGFEColorMatrixElement", + "SVGFEComponentTransferElement", + "SVGFECompositeElement", + "SVGFEConvolveMatrixElement", + "SVGFEDiffuseLightingElement", + "SVGFEDisplacementMapElement", + "SVGFEDistantLightElement", + "SVGFEDropShadowElement", + "SVGFEFloodElement", + "SVGFEFuncAElement", + "SVGFEFuncBElement", + "SVGFEFuncGElement", + "SVGFEFuncRElement", + "SVGFEGaussianBlurElement", + "SVGFEImageElement", + "SVGFEMergeElement", + "SVGFEMergeNodeElement", + "SVGFEMorphologyElement", + "SVGFEOffsetElement", + "SVGFEPointLightElement", + "SVGFESpecularLightingElement", + "SVGFESpotLightElement", + "SVGFETileElement", + "SVGFETurbulenceElement", + "SVGFilterElement", + "SVGFontElement", + "SVGFontFaceElement", + "SVGFontFaceFormatElement", + "SVGFontFaceNameElement", + "SVGFontFaceSrcElement", + "SVGFontFaceUriElement", + "SVGForeignObjectElement", + "SVGGElement", + "SVGGeometryElement", + "SVGGlyphElement", + "SVGGlyphRefElement", + "SVGGradientElement", + "SVGGraphicsElement", + "SVGHKernElement", + "SVGImageElement", + "SVGLength", + "SVGLengthList", + "SVGLineElement", + "SVGLinearGradientElement", + "SVGMPathElement", + "SVGMarkerElement", + "SVGMaskElement", + "SVGMatrix", + "SVGMetadataElement", + "SVGMissingGlyphElement", + "SVGNumber", + "SVGNumberList", + "SVGPaint", + "SVGPathElement", + "SVGPathSeg", + "SVGPathSegArcAbs", + "SVGPathSegArcRel", + "SVGPathSegClosePath", + "SVGPathSegCurvetoCubicAbs", + "SVGPathSegCurvetoCubicRel", + "SVGPathSegCurvetoCubicSmoothAbs", + "SVGPathSegCurvetoCubicSmoothRel", + "SVGPathSegCurvetoQuadraticAbs", + "SVGPathSegCurvetoQuadraticRel", + "SVGPathSegCurvetoQuadraticSmoothAbs", + "SVGPathSegCurvetoQuadraticSmoothRel", + "SVGPathSegLinetoAbs", + "SVGPathSegLinetoHorizontalAbs", + "SVGPathSegLinetoHorizontalRel", + "SVGPathSegLinetoRel", + "SVGPathSegLinetoVerticalAbs", + "SVGPathSegLinetoVerticalRel", + "SVGPathSegList", + "SVGPathSegMovetoAbs", + "SVGPathSegMovetoRel", + "SVGPatternElement", + "SVGPoint", + "SVGPointList", + "SVGPolygonElement", + "SVGPolylineElement", + "SVGPreserveAspectRatio", + "SVGRadialGradientElement", + "SVGRect", + "SVGRectElement", + "SVGRenderingIntent", + "SVGSVGElement", + "SVGScriptElement", + "SVGSetElement", + "SVGStopElement", + "SVGStringList", + "SVGStyleElement", + "SVGSwitchElement", + "SVGSymbolElement", + "SVGTRefElement", + "SVGTSpanElement", + "SVGTextContentElement", + "SVGTextElement", + "SVGTextPathElement", + "SVGTextPositioningElement", + "SVGTitleElement", + "SVGTransform", + "SVGTransformList", + "SVGUnitTypes", + "SVGUseElement", + "SVGVKernElement", + "SVGViewElement", + "SVGViewSpec", + "SVGZoomAndPan", + "SVGZoomEvent", + "SVG_ANGLETYPE_DEG", + "SVG_ANGLETYPE_GRAD", + "SVG_ANGLETYPE_RAD", + "SVG_ANGLETYPE_UNKNOWN", + "SVG_ANGLETYPE_UNSPECIFIED", + "SVG_CHANNEL_A", + "SVG_CHANNEL_B", + "SVG_CHANNEL_G", + "SVG_CHANNEL_R", + "SVG_CHANNEL_UNKNOWN", + "SVG_COLORTYPE_CURRENTCOLOR", + "SVG_COLORTYPE_RGBCOLOR", + "SVG_COLORTYPE_RGBCOLOR_ICCCOLOR", + "SVG_COLORTYPE_UNKNOWN", + "SVG_EDGEMODE_DUPLICATE", + "SVG_EDGEMODE_NONE", + "SVG_EDGEMODE_UNKNOWN", + "SVG_EDGEMODE_WRAP", + "SVG_FEBLEND_MODE_COLOR", + "SVG_FEBLEND_MODE_COLOR_BURN", + "SVG_FEBLEND_MODE_COLOR_DODGE", + "SVG_FEBLEND_MODE_DARKEN", + "SVG_FEBLEND_MODE_DIFFERENCE", + "SVG_FEBLEND_MODE_EXCLUSION", + "SVG_FEBLEND_MODE_HARD_LIGHT", + "SVG_FEBLEND_MODE_HUE", + "SVG_FEBLEND_MODE_LIGHTEN", + "SVG_FEBLEND_MODE_LUMINOSITY", + "SVG_FEBLEND_MODE_MULTIPLY", + "SVG_FEBLEND_MODE_NORMAL", + "SVG_FEBLEND_MODE_OVERLAY", + "SVG_FEBLEND_MODE_SATURATION", + "SVG_FEBLEND_MODE_SCREEN", + "SVG_FEBLEND_MODE_SOFT_LIGHT", + "SVG_FEBLEND_MODE_UNKNOWN", + "SVG_FECOLORMATRIX_TYPE_HUEROTATE", + "SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA", + "SVG_FECOLORMATRIX_TYPE_MATRIX", + "SVG_FECOLORMATRIX_TYPE_SATURATE", + "SVG_FECOLORMATRIX_TYPE_UNKNOWN", + "SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE", + "SVG_FECOMPONENTTRANSFER_TYPE_GAMMA", + "SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY", + "SVG_FECOMPONENTTRANSFER_TYPE_LINEAR", + "SVG_FECOMPONENTTRANSFER_TYPE_TABLE", + "SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN", + "SVG_FECOMPOSITE_OPERATOR_ARITHMETIC", + "SVG_FECOMPOSITE_OPERATOR_ATOP", + "SVG_FECOMPOSITE_OPERATOR_IN", + "SVG_FECOMPOSITE_OPERATOR_OUT", + "SVG_FECOMPOSITE_OPERATOR_OVER", + "SVG_FECOMPOSITE_OPERATOR_UNKNOWN", + "SVG_FECOMPOSITE_OPERATOR_XOR", + "SVG_INVALID_VALUE_ERR", + "SVG_LENGTHTYPE_CM", + "SVG_LENGTHTYPE_EMS", + "SVG_LENGTHTYPE_EXS", + "SVG_LENGTHTYPE_IN", + "SVG_LENGTHTYPE_MM", + "SVG_LENGTHTYPE_NUMBER", + "SVG_LENGTHTYPE_PC", + "SVG_LENGTHTYPE_PERCENTAGE", + "SVG_LENGTHTYPE_PT", + "SVG_LENGTHTYPE_PX", + "SVG_LENGTHTYPE_UNKNOWN", + "SVG_MARKERUNITS_STROKEWIDTH", + "SVG_MARKERUNITS_UNKNOWN", + "SVG_MARKERUNITS_USERSPACEONUSE", + "SVG_MARKER_ORIENT_ANGLE", + "SVG_MARKER_ORIENT_AUTO", + "SVG_MARKER_ORIENT_UNKNOWN", + "SVG_MASKTYPE_ALPHA", + "SVG_MASKTYPE_LUMINANCE", + "SVG_MATRIX_NOT_INVERTABLE", + "SVG_MEETORSLICE_MEET", + "SVG_MEETORSLICE_SLICE", + "SVG_MEETORSLICE_UNKNOWN", + "SVG_MORPHOLOGY_OPERATOR_DILATE", + "SVG_MORPHOLOGY_OPERATOR_ERODE", + "SVG_MORPHOLOGY_OPERATOR_UNKNOWN", + "SVG_PAINTTYPE_CURRENTCOLOR", + "SVG_PAINTTYPE_NONE", + "SVG_PAINTTYPE_RGBCOLOR", + "SVG_PAINTTYPE_RGBCOLOR_ICCCOLOR", + "SVG_PAINTTYPE_UNKNOWN", + "SVG_PAINTTYPE_URI", + "SVG_PAINTTYPE_URI_CURRENTCOLOR", + "SVG_PAINTTYPE_URI_NONE", + "SVG_PAINTTYPE_URI_RGBCOLOR", + "SVG_PAINTTYPE_URI_RGBCOLOR_ICCCOLOR", + "SVG_PRESERVEASPECTRATIO_NONE", + "SVG_PRESERVEASPECTRATIO_UNKNOWN", + "SVG_PRESERVEASPECTRATIO_XMAXYMAX", + "SVG_PRESERVEASPECTRATIO_XMAXYMID", + "SVG_PRESERVEASPECTRATIO_XMAXYMIN", + "SVG_PRESERVEASPECTRATIO_XMIDYMAX", + "SVG_PRESERVEASPECTRATIO_XMIDYMID", + "SVG_PRESERVEASPECTRATIO_XMIDYMIN", + "SVG_PRESERVEASPECTRATIO_XMINYMAX", + "SVG_PRESERVEASPECTRATIO_XMINYMID", + "SVG_PRESERVEASPECTRATIO_XMINYMIN", + "SVG_SPREADMETHOD_PAD", + "SVG_SPREADMETHOD_REFLECT", + "SVG_SPREADMETHOD_REPEAT", + "SVG_SPREADMETHOD_UNKNOWN", + "SVG_STITCHTYPE_NOSTITCH", + "SVG_STITCHTYPE_STITCH", + "SVG_STITCHTYPE_UNKNOWN", + "SVG_TRANSFORM_MATRIX", + "SVG_TRANSFORM_ROTATE", + "SVG_TRANSFORM_SCALE", + "SVG_TRANSFORM_SKEWX", + "SVG_TRANSFORM_SKEWY", + "SVG_TRANSFORM_TRANSLATE", + "SVG_TRANSFORM_UNKNOWN", + "SVG_TURBULENCE_TYPE_FRACTALNOISE", + "SVG_TURBULENCE_TYPE_TURBULENCE", + "SVG_TURBULENCE_TYPE_UNKNOWN", + "SVG_UNIT_TYPE_OBJECTBOUNDINGBOX", + "SVG_UNIT_TYPE_UNKNOWN", + "SVG_UNIT_TYPE_USERSPACEONUSE", + "SVG_WRONG_TYPE_ERR", + "SVG_ZOOMANDPAN_DISABLE", + "SVG_ZOOMANDPAN_MAGNIFY", + "SVG_ZOOMANDPAN_UNKNOWN", + "SYNTAX_ERR", + "SavedPages", + "Screen", + "ScreenOrientation", + "Script", + "ScriptProcessorNode", + "ScrollAreaEvent", + "SecurityPolicyViolationEvent", + "Selection", + "ServiceWorker", + "ServiceWorkerContainer", + "ServiceWorkerRegistration", + "SessionDescription", + "Set", + "ShadowRoot", + "SharedWorker", + "SimpleGestureEvent", + "SpeechSynthesisEvent", + "SpeechSynthesisUtterance", + "StopIteration", + "Storage", + "StorageEvent", + "String", + "StyleSheet", + "StyleSheetList", + "SubtleCrypto", + "Symbol", + "SyntaxError", + "TEMPORARY", + "TEXTPATH_METHODTYPE_ALIGN", + "TEXTPATH_METHODTYPE_STRETCH", + "TEXTPATH_METHODTYPE_UNKNOWN", + "TEXTPATH_SPACINGTYPE_AUTO", + "TEXTPATH_SPACINGTYPE_EXACT", + "TEXTPATH_SPACINGTYPE_UNKNOWN", + "TEXTURE", + "TEXTURE0", + "TEXTURE1", + "TEXTURE10", + "TEXTURE11", + "TEXTURE12", + "TEXTURE13", + "TEXTURE14", + "TEXTURE15", + "TEXTURE16", + "TEXTURE17", + "TEXTURE18", + "TEXTURE19", + "TEXTURE2", + "TEXTURE20", + "TEXTURE21", + "TEXTURE22", + "TEXTURE23", + "TEXTURE24", + "TEXTURE25", + "TEXTURE26", + "TEXTURE27", + "TEXTURE28", + "TEXTURE29", + "TEXTURE3", + "TEXTURE30", + "TEXTURE31", + "TEXTURE4", + "TEXTURE5", + "TEXTURE6", + "TEXTURE7", + "TEXTURE8", + "TEXTURE9", + "TEXTURE_2D", + "TEXTURE_BINDING_2D", + "TEXTURE_BINDING_CUBE_MAP", + "TEXTURE_CUBE_MAP", + "TEXTURE_CUBE_MAP_NEGATIVE_X", + "TEXTURE_CUBE_MAP_NEGATIVE_Y", + "TEXTURE_CUBE_MAP_NEGATIVE_Z", + "TEXTURE_CUBE_MAP_POSITIVE_X", + "TEXTURE_CUBE_MAP_POSITIVE_Y", + "TEXTURE_CUBE_MAP_POSITIVE_Z", + "TEXTURE_MAG_FILTER", + "TEXTURE_MAX_ANISOTROPY_EXT", + "TEXTURE_MIN_FILTER", + "TEXTURE_WRAP_S", + "TEXTURE_WRAP_T", + "TEXT_NODE", + "TIMEOUT", + "TIMEOUT_ERR", + "TOO_LARGE_ERR", + "TRANSACTION_INACTIVE_ERR", + "TRIANGLE", + "TRIANGLES", + "TRIANGLE_FAN", + "TRIANGLE_STRIP", + "TYPE_BACK_FORWARD", + "TYPE_ERR", + "TYPE_MISMATCH_ERR", + "TYPE_NAVIGATE", + "TYPE_RELOAD", + "TYPE_RESERVED", + "Text", + "TextDecoder", + "TextEncoder", + "TextEvent", + "TextMetrics", + "TextTrack", + "TextTrackCue", + "TextTrackCueList", + "TextTrackList", + "TimeEvent", + "TimeRanges", + "Touch", + "TouchEvent", + "TouchList", + "TrackEvent", + "TransitionEvent", + "TreeWalker", + "TypeError", + "UIEvent", + "UNCACHED", + "UNKNOWN_ERR", + "UNKNOWN_RULE", + "UNMASKED_RENDERER_WEBGL", + "UNMASKED_VENDOR_WEBGL", + "UNORDERED_NODE_ITERATOR_TYPE", + "UNORDERED_NODE_SNAPSHOT_TYPE", + "UNPACK_ALIGNMENT", + "UNPACK_COLORSPACE_CONVERSION_WEBGL", + "UNPACK_FLIP_Y_WEBGL", + "UNPACK_PREMULTIPLY_ALPHA_WEBGL", + "UNSCHEDULED_STATE", + "UNSENT", + "UNSIGNED_BYTE", + "UNSIGNED_INT", + "UNSIGNED_SHORT", + "UNSIGNED_SHORT_4_4_4_4", + "UNSIGNED_SHORT_5_5_5_1", + "UNSIGNED_SHORT_5_6_5", + "UNSPECIFIED_EVENT_TYPE_ERR", + "UPDATEREADY", + "URIError", + "URL", + "URLSearchParams", + "URLUnencoded", + "URL_MISMATCH_ERR", + "UTC", + "Uint16Array", + "Uint32Array", + "Uint8Array", + "Uint8ClampedArray", + "UserMessageHandler", + "UserMessageHandlersNamespace", + "UserProximityEvent", + "VALIDATE_STATUS", + "VALIDATION_ERR", + "VARIABLES_RULE", + "VENDOR", + "VERSION", + "VERSION_CHANGE", + "VERSION_ERR", + "VERTEX_ATTRIB_ARRAY_BUFFER_BINDING", + "VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE", + "VERTEX_ATTRIB_ARRAY_ENABLED", + "VERTEX_ATTRIB_ARRAY_NORMALIZED", + "VERTEX_ATTRIB_ARRAY_POINTER", + "VERTEX_ATTRIB_ARRAY_SIZE", + "VERTEX_ATTRIB_ARRAY_STRIDE", + "VERTEX_ATTRIB_ARRAY_TYPE", + "VERTEX_SHADER", + "VERTICAL", + "VERTICAL_AXIS", + "VER_ERR", + "VIEWPORT", + "VIEWPORT_RULE", + "VTTCue", + "VTTRegion", + "ValidityState", + "VideoStreamTrack", + "WEBKIT_FILTER_RULE", + "WEBKIT_KEYFRAMES_RULE", + "WEBKIT_KEYFRAME_RULE", + "WEBKIT_REGION_RULE", + "WRONG_DOCUMENT_ERR", + "WaveShaperNode", + "WeakMap", + "WeakSet", + "WebGLActiveInfo", + "WebGLBuffer", + "WebGLContextEvent", + "WebGLFramebuffer", + "WebGLProgram", + "WebGLRenderbuffer", + "WebGLRenderingContext", + "WebGLShader", + "WebGLShaderPrecisionFormat", + "WebGLTexture", + "WebGLUniformLocation", + "WebGLVertexArray", + "WebKitAnimationEvent", + "WebKitBlobBuilder", + "WebKitCSSFilterRule", + "WebKitCSSFilterValue", + "WebKitCSSKeyframeRule", + "WebKitCSSKeyframesRule", + "WebKitCSSMatrix", + "WebKitCSSRegionRule", + "WebKitCSSTransformValue", + "WebKitDataCue", + "WebKitGamepad", + "WebKitMediaKeyError", + "WebKitMediaKeyMessageEvent", + "WebKitMediaKeySession", + "WebKitMediaKeys", + "WebKitMediaSource", + "WebKitMutationObserver", + "WebKitNamespace", + "WebKitPlaybackTargetAvailabilityEvent", + "WebKitPoint", + "WebKitShadowRoot", + "WebKitSourceBuffer", + "WebKitSourceBufferList", + "WebKitTransitionEvent", + "WebSocket", + "WheelEvent", + "Window", + "Worker", + "XMLDocument", + "XMLHttpRequest", + "XMLHttpRequestEventTarget", + "XMLHttpRequestException", + "XMLHttpRequestProgressEvent", + "XMLHttpRequestUpload", + "XMLSerializer", + "XMLStylesheetProcessingInstruction", + "XPathEvaluator", + "XPathException", + "XPathExpression", + "XPathNSResolver", + "XPathResult", + "XSLTProcessor", + "ZERO", + "_XD0M_", + "_YD0M_", + "__defineGetter__", + "__defineSetter__", + "__lookupGetter__", + "__lookupSetter__", + "__opera", + "__proto__", + "_browserjsran", + "a", + "aLink", + "abbr", + "abort", + "abs", + "absolute", + "acceleration", + "accelerationIncludingGravity", + "accelerator", + "accept", + "acceptCharset", + "acceptNode", + "accessKey", + "accessKeyLabel", + "accuracy", + "acos", + "acosh", + "action", + "actionURL", + "active", + "activeCues", + "activeElement", + "activeSourceBuffers", + "activeSourceCount", + "activeTexture", + "add", + "addBehavior", + "addCandidate", + "addColorStop", + "addCue", + "addElement", + "addEventListener", + "addFilter", + "addFromString", + "addFromUri", + "addIceCandidate", + "addImport", + "addListener", + "addNamed", + "addPageRule", + "addPath", + "addPointer", + "addRange", + "addRegion", + "addRule", + "addSearchEngine", + "addSourceBuffer", + "addStream", + "addTextTrack", + "addTrack", + "addWakeLockListener", + "addedNodes", + "additionalName", + "additiveSymbols", + "addons", + "adoptNode", + "adr", + "advance", + "alert", + "algorithm", + "align", + "align-content", + "align-items", + "align-self", + "alignContent", + "alignItems", + "alignSelf", + "alignmentBaseline", + "alinkColor", + "all", + "allowFullscreen", + "allowedDirections", + "alpha", + "alt", + "altGraphKey", + "altHtml", + "altKey", + "altLeft", + "altitude", + "altitudeAccuracy", + "amplitude", + "ancestorOrigins", + "anchor", + "anchorNode", + "anchorOffset", + "anchors", + "angle", + "animVal", + "animate", + "animatedInstanceRoot", + "animatedNormalizedPathSegList", + "animatedPathSegList", + "animatedPoints", + "animation", + "animation-delay", + "animation-direction", + "animation-duration", + "animation-fill-mode", + "animation-iteration-count", + "animation-name", + "animation-play-state", + "animation-timing-function", + "animationDelay", + "animationDirection", + "animationDuration", + "animationFillMode", + "animationIterationCount", + "animationName", + "animationPlayState", + "animationStartTime", + "animationTimingFunction", + "animationsPaused", + "anniversary", + "app", + "appCodeName", + "appMinorVersion", + "appName", + "appNotifications", + "appVersion", + "append", + "appendBuffer", + "appendChild", + "appendData", + "appendItem", + "appendMedium", + "appendNamed", + "appendRule", + "appendStream", + "appendWindowEnd", + "appendWindowStart", + "applets", + "applicationCache", + "apply", + "applyElement", + "arc", + "arcTo", + "archive", + "areas", + "arguments", + "arrayBuffer", + "asin", + "asinh", + "assert", + "assign", + "async", + "atEnd", + "atan", + "atan2", + "atanh", + "atob", + "attachEvent", + "attachShader", + "attachments", + "attack", + "attrChange", + "attrName", + "attributeName", + "attributeNamespace", + "attributes", + "audioTracks", + "autoIncrement", + "autobuffer", + "autocapitalize", + "autocomplete", + "autocorrect", + "autofocus", + "autoplay", + "availHeight", + "availLeft", + "availTop", + "availWidth", + "availability", + "available", + "aversion", + "axes", + "axis", + "azimuth", + "b", + "back", + "backface-visibility", + "backfaceVisibility", + "background", + "background-attachment", + "background-blend-mode", + "background-clip", + "background-color", + "background-image", + "background-origin", + "background-position", + "background-repeat", + "background-size", + "backgroundAttachment", + "backgroundBlendMode", + "backgroundClip", + "backgroundColor", + "backgroundImage", + "backgroundOrigin", + "backgroundPosition", + "backgroundPositionX", + "backgroundPositionY", + "backgroundRepeat", + "backgroundSize", + "badInput", + "balance", + "baseFrequencyX", + "baseFrequencyY", + "baseNode", + "baseOffset", + "baseURI", + "baseVal", + "baselineShift", + "battery", + "bday", + "beginElement", + "beginElementAt", + "beginPath", + "behavior", + "behaviorCookie", + "behaviorPart", + "behaviorUrns", + "beta", + "bezierCurveTo", + "bgColor", + "bgProperties", + "bias", + "big", + "binaryType", + "bind", + "bindAttribLocation", + "bindBuffer", + "bindFramebuffer", + "bindRenderbuffer", + "bindTexture", + "blendColor", + "blendEquation", + "blendEquationSeparate", + "blendFunc", + "blendFuncSeparate", + "blink", + "blob", + "blockDirection", + "blue", + "blur", + "body", + "bodyUsed", + "bold", + "bookmarks", + "booleanValue", + "border", + "border-bottom", + "border-bottom-color", + "border-bottom-left-radius", + "border-bottom-right-radius", + "border-bottom-style", + "border-bottom-width", + "border-collapse", + "border-color", + "border-image", + "border-image-outset", + "border-image-repeat", + "border-image-slice", + "border-image-source", + "border-image-width", + "border-left", + "border-left-color", + "border-left-style", + "border-left-width", + "border-radius", + "border-right", + "border-right-color", + "border-right-style", + "border-right-width", + "border-spacing", + "border-style", + "border-top", + "border-top-color", + "border-top-left-radius", + "border-top-right-radius", + "border-top-style", + "border-top-width", + "border-width", + "borderBottom", + "borderBottomColor", + "borderBottomLeftRadius", + "borderBottomRightRadius", + "borderBottomStyle", + "borderBottomWidth", + "borderCollapse", + "borderColor", + "borderColorDark", + "borderColorLight", + "borderImage", + "borderImageOutset", + "borderImageRepeat", + "borderImageSlice", + "borderImageSource", + "borderImageWidth", + "borderLeft", + "borderLeftColor", + "borderLeftStyle", + "borderLeftWidth", + "borderRadius", + "borderRight", + "borderRightColor", + "borderRightStyle", + "borderRightWidth", + "borderSpacing", + "borderStyle", + "borderTop", + "borderTopColor", + "borderTopLeftRadius", + "borderTopRightRadius", + "borderTopStyle", + "borderTopWidth", + "borderWidth", + "bottom", + "bottomMargin", + "bound", + "boundElements", + "boundingClientRect", + "boundingHeight", + "boundingLeft", + "boundingTop", + "boundingWidth", + "bounds", + "box-decoration-break", + "box-shadow", + "box-sizing", + "boxDecorationBreak", + "boxShadow", + "boxSizing", + "breakAfter", + "breakBefore", + "breakInside", + "browserLanguage", + "btoa", + "bubbles", + "buffer", + "bufferData", + "bufferDepth", + "bufferSize", + "bufferSubData", + "buffered", + "bufferedAmount", + "buildID", + "buildNumber", + "button", + "buttonID", + "buttons", + "byteLength", + "byteOffset", + "c", + "call", + "caller", + "canBeFormatted", + "canBeMounted", + "canBeShared", + "canHaveChildren", + "canHaveHTML", + "canPlayType", + "cancel", + "cancelAnimationFrame", + "cancelBubble", + "cancelScheduledValues", + "cancelable", + "candidate", + "canvas", + "caption", + "caption-side", + "captionSide", + "captureEvents", + "captureStackTrace", + "caretPositionFromPoint", + "caretRangeFromPoint", + "cast", + "catch", + "category", + "cbrt", + "cd", + "ceil", + "cellIndex", + "cellPadding", + "cellSpacing", + "cells", + "ch", + "chOff", + "chain", + "challenge", + "changedTouches", + "channel", + "channelCount", + "channelCountMode", + "channelInterpretation", + "char", + "charAt", + "charCode", + "charCodeAt", + "charIndex", + "characterSet", + "charging", + "chargingTime", + "charset", + "checkEnclosure", + "checkFramebufferStatus", + "checkIntersection", + "checkValidity", + "checked", + "childElementCount", + "childNodes", + "children", + "chrome", + "ciphertext", + "cite", + "classList", + "className", + "classid", + "clear", + "clearAttributes", + "clearColor", + "clearData", + "clearDepth", + "clearImmediate", + "clearInterval", + "clearMarks", + "clearMeasures", + "clearParameters", + "clearRect", + "clearResourceTimings", + "clearShadow", + "clearStencil", + "clearTimeout", + "clearWatch", + "click", + "clickCount", + "clientHeight", + "clientInformation", + "clientLeft", + "clientRect", + "clientRects", + "clientTop", + "clientWidth", + "clientX", + "clientY", + "clip", + "clip-path", + "clip-rule", + "clipBottom", + "clipLeft", + "clipPath", + "clipPathUnits", + "clipRight", + "clipRule", + "clipTop", + "clipboardData", + "clone", + "cloneContents", + "cloneNode", + "cloneRange", + "close", + "closePath", + "closed", + "closest", + "clz", + "clz32", + "cmp", + "code", + "codeBase", + "codePointAt", + "codeType", + "colSpan", + "collapse", + "collapseToEnd", + "collapseToStart", + "collapsed", + "collect", + "colno", + "color", + "color-interpolation", + "color-interpolation-filters", + "colorDepth", + "colorInterpolation", + "colorInterpolationFilters", + "colorMask", + "colorType", + "cols", + "columnCount", + "columnFill", + "columnGap", + "columnNumber", + "columnRule", + "columnRuleColor", + "columnRuleStyle", + "columnRuleWidth", + "columnSpan", + "columnWidth", + "columns", + "command", + "commitPreferences", + "commonAncestorContainer", + "compact", + "compareBoundaryPoints", + "compareDocumentPosition", + "compareEndPoints", + "compareNode", + "comparePoint", + "compatMode", + "compatible", + "compile", + "compileShader", + "complete", + "componentFromPoint", + "compositionEndOffset", + "compositionStartOffset", + "compressedTexImage2D", + "compressedTexSubImage2D", + "concat", + "conditionText", + "coneInnerAngle", + "coneOuterAngle", + "coneOuterGain", + "confirm", + "confirmComposition", + "confirmSiteSpecificTrackingException", + "confirmWebWideTrackingException", + "connect", + "connectEnd", + "connectStart", + "connected", + "connection", + "connectionSpeed", + "console", + "consolidate", + "constrictionActive", + "constructor", + "contactID", + "contains", + "containsNode", + "content", + "contentDocument", + "contentEditable", + "contentOverflow", + "contentScriptType", + "contentStyleType", + "contentType", + "contentWindow", + "context", + "contextMenu", + "contextmenu", + "continue", + "continuous", + "control", + "controller", + "controls", + "convertToSpecifiedUnits", + "cookie", + "cookieEnabled", + "coords", + "copyFromChannel", + "copyTexImage2D", + "copyTexSubImage2D", + "copyToChannel", + "copyWithin", + "correspondingElement", + "correspondingUseElement", + "cos", + "cosh", + "count", + "counter-increment", + "counter-reset", + "counterIncrement", + "counterReset", + "cpuClass", + "cpuSleepAllowed", + "create", + "createAnalyser", + "createAnswer", + "createAttribute", + "createAttributeNS", + "createBiquadFilter", + "createBuffer", + "createBufferSource", + "createCDATASection", + "createCSSStyleSheet", + "createCaption", + "createChannelMerger", + "createChannelSplitter", + "createComment", + "createContextualFragment", + "createControlRange", + "createConvolver", + "createDTMFSender", + "createDataChannel", + "createDelay", + "createDelayNode", + "createDocument", + "createDocumentFragment", + "createDocumentType", + "createDynamicsCompressor", + "createElement", + "createElementNS", + "createEntityReference", + "createEvent", + "createEventObject", + "createExpression", + "createFramebuffer", + "createFunction", + "createGain", + "createGainNode", + "createHTMLDocument", + "createImageBitmap", + "createImageData", + "createIndex", + "createJavaScriptNode", + "createLinearGradient", + "createMediaElementSource", + "createMediaKeys", + "createMediaStreamDestination", + "createMediaStreamSource", + "createMutableFile", + "createNSResolver", + "createNodeIterator", + "createNotification", + "createObjectStore", + "createObjectURL", + "createOffer", + "createOscillator", + "createPanner", + "createPattern", + "createPeriodicWave", + "createPopup", + "createProcessingInstruction", + "createProgram", + "createRadialGradient", + "createRange", + "createRangeCollection", + "createRenderbuffer", + "createSVGAngle", + "createSVGLength", + "createSVGMatrix", + "createSVGNumber", + "createSVGPathSegArcAbs", + "createSVGPathSegArcRel", + "createSVGPathSegClosePath", + "createSVGPathSegCurvetoCubicAbs", + "createSVGPathSegCurvetoCubicRel", + "createSVGPathSegCurvetoCubicSmoothAbs", + "createSVGPathSegCurvetoCubicSmoothRel", + "createSVGPathSegCurvetoQuadraticAbs", + "createSVGPathSegCurvetoQuadraticRel", + "createSVGPathSegCurvetoQuadraticSmoothAbs", + "createSVGPathSegCurvetoQuadraticSmoothRel", + "createSVGPathSegLinetoAbs", + "createSVGPathSegLinetoHorizontalAbs", + "createSVGPathSegLinetoHorizontalRel", + "createSVGPathSegLinetoRel", + "createSVGPathSegLinetoVerticalAbs", + "createSVGPathSegLinetoVerticalRel", + "createSVGPathSegMovetoAbs", + "createSVGPathSegMovetoRel", + "createSVGPoint", + "createSVGRect", + "createSVGTransform", + "createSVGTransformFromMatrix", + "createScriptProcessor", + "createSession", + "createShader", + "createShadowRoot", + "createStereoPanner", + "createStyleSheet", + "createTBody", + "createTFoot", + "createTHead", + "createTextNode", + "createTextRange", + "createTexture", + "createTouch", + "createTouchList", + "createTreeWalker", + "createWaveShaper", + "creationTime", + "crossOrigin", + "crypto", + "csi", + "cssFloat", + "cssRules", + "cssText", + "cssValueType", + "ctrlKey", + "ctrlLeft", + "cues", + "cullFace", + "currentNode", + "currentPage", + "currentScale", + "currentScript", + "currentSrc", + "currentState", + "currentStyle", + "currentTarget", + "currentTime", + "currentTranslate", + "currentView", + "cursor", + "curve", + "customError", + "cx", + "cy", + "d", + "data", + "dataFld", + "dataFormatAs", + "dataPageSize", + "dataSrc", + "dataTransfer", + "database", + "dataset", + "dateTime", + "db", + "debug", + "debuggerEnabled", + "declare", + "decode", + "decodeAudioData", + "decodeURI", + "decodeURIComponent", + "decrypt", + "default", + "defaultCharset", + "defaultChecked", + "defaultMuted", + "defaultPlaybackRate", + "defaultPrevented", + "defaultSelected", + "defaultStatus", + "defaultURL", + "defaultValue", + "defaultView", + "defaultstatus", + "defer", + "defineMagicFunction", + "defineMagicVariable", + "defineProperties", + "defineProperty", + "delayTime", + "delete", + "deleteBuffer", + "deleteCaption", + "deleteCell", + "deleteContents", + "deleteData", + "deleteDatabase", + "deleteFramebuffer", + "deleteFromDocument", + "deleteIndex", + "deleteMedium", + "deleteObjectStore", + "deleteProgram", + "deleteRenderbuffer", + "deleteRow", + "deleteRule", + "deleteShader", + "deleteTFoot", + "deleteTHead", + "deleteTexture", + "deliverChangeRecords", + "delivery", + "deliveryInfo", + "deliveryStatus", + "deliveryTimestamp", + "delta", + "deltaMode", + "deltaX", + "deltaY", + "deltaZ", + "depthFunc", + "depthMask", + "depthRange", + "deriveBits", + "deriveKey", + "description", + "deselectAll", + "designMode", + "destination", + "destinationURL", + "detach", + "detachEvent", + "detachShader", + "detail", + "detune", + "devicePixelRatio", + "deviceXDPI", + "deviceYDPI", + "diffuseConstant", + "digest", + "dimensions", + "dir", + "dirName", + "direction", + "dirxml", + "disable", + "disableVertexAttribArray", + "disabled", + "dischargingTime", + "disconnect", + "dispatchEvent", + "display", + "distanceModel", + "divisor", + "djsapi", + "djsproxy", + "doImport", + "doNotTrack", + "doScroll", + "doctype", + "document", + "documentElement", + "documentMode", + "documentURI", + "dolphin", + "dolphinGameCenter", + "dolphininfo", + "dolphinmeta", + "domComplete", + "domContentLoadedEventEnd", + "domContentLoadedEventStart", + "domInteractive", + "domLoading", + "domain", + "domainLookupEnd", + "domainLookupStart", + "dominant-baseline", + "dominantBaseline", + "done", + "dopplerFactor", + "download", + "dragDrop", + "draggable", + "drawArrays", + "drawArraysInstancedANGLE", + "drawCustomFocusRing", + "drawElements", + "drawElementsInstancedANGLE", + "drawFocusIfNeeded", + "drawImage", + "drawImageFromRect", + "drawSystemFocusRing", + "drawingBufferHeight", + "drawingBufferWidth", + "dropEffect", + "droppedVideoFrames", + "dropzone", + "dump", + "duplicate", + "duration", + "dvname", + "dvnum", + "dx", + "dy", + "dynsrc", + "e", + "edgeMode", + "effectAllowed", + "elapsedTime", + "elementFromPoint", + "elements", + "elevation", + "ellipse", + "email", + "embeds", + "empty", + "empty-cells", + "emptyCells", + "enable", + "enableBackground", + "enableStyleSheetsForSet", + "enableVertexAttribArray", + "enabled", + "enabledPlugin", + "encode", + "encodeURI", + "encodeURIComponent", + "encoding", + "encrypt", + "enctype", + "end", + "endContainer", + "endElement", + "endElementAt", + "endOfStream", + "endOffset", + "endTime", + "ended", + "endsWith", + "entities", + "entries", + "entryType", + "enumerate", + "enumerateEditable", + "error", + "errorCode", + "escape", + "eval", + "evaluate", + "event", + "eventPhase", + "every", + "exception", + "exec", + "execCommand", + "execCommandShowHelp", + "execScript", + "exitFullscreen", + "exitPointerLock", + "exp", + "expand", + "expandEntityReferences", + "expando", + "expansion", + "expiryDate", + "explicitOriginalTarget", + "expm1", + "exponent", + "exponentialRampToValueAtTime", + "exportKey", + "extend", + "extensions", + "extentNode", + "extentOffset", + "external", + "externalResourcesRequired", + "extractContents", + "extractable", + "f", + "face", + "factoryReset", + "fallback", + "familyName", + "farthestViewportElement", + "fastSeek", + "fatal", + "fetch", + "fetchStart", + "fftSize", + "fgColor", + "fileCreatedDate", + "fileHandle", + "fileModifiedDate", + "fileName", + "fileSize", + "fileUpdatedDate", + "filename", + "files", + "fill", + "fill-opacity", + "fill-rule", + "fillOpacity", + "fillRect", + "fillRule", + "fillStyle", + "fillText", + "filter", + "filterResX", + "filterResY", + "filterUnits", + "filters", + "find", + "findIndex", + "findRule", + "findText", + "finish", + "fireEvent", + "firstChild", + "firstElementChild", + "firstPage", + "fixed", + "flex", + "flex-basis", + "flex-direction", + "flex-flow", + "flex-grow", + "flex-shrink", + "flex-wrap", + "flexBasis", + "flexDirection", + "flexFlow", + "flexGrow", + "flexShrink", + "flexWrap", + "flipX", + "flipY", + "float", + "flood-color", + "flood-opacity", + "floodColor", + "floodOpacity", + "floor", + "flush", + "focus", + "focusNode", + "focusOffset", + "font", + "font-family", + "font-feature-settings", + "font-kerning", + "font-language-override", + "font-size", + "font-size-adjust", + "font-stretch", + "font-style", + "font-synthesis", + "font-variant", + "font-variant-alternates", + "font-variant-caps", + "font-variant-east-asian", + "font-variant-ligatures", + "font-variant-numeric", + "font-variant-position", + "font-weight", + "fontFamily", + "fontFeatureSettings", + "fontKerning", + "fontLanguageOverride", + "fontSize", + "fontSizeAdjust", + "fontSmoothingEnabled", + "fontStretch", + "fontStyle", + "fontSynthesis", + "fontVariant", + "fontVariantAlternates", + "fontVariantCaps", + "fontVariantEastAsian", + "fontVariantLigatures", + "fontVariantNumeric", + "fontVariantPosition", + "fontWeight", + "fontcolor", + "fonts", + "fontsize", + "for", + "forEach", + "forceRedraw", + "form", + "formAction", + "formEnctype", + "formMethod", + "formNoValidate", + "formTarget", + "format", + "forms", + "forward", + "fr", + "frame", + "frameBorder", + "frameElement", + "frameSpacing", + "framebufferRenderbuffer", + "framebufferTexture2D", + "frames", + "freeSpace", + "freeze", + "frequency", + "frequencyBinCount", + "from", + "fromCharCode", + "fromCodePoint", + "fromElement", + "frontFace", + "fround", + "fullScreen", + "fullscreenElement", + "fullscreenEnabled", + "fx", + "fy", + "gain", + "gamepad", + "gamma", + "genderIdentity", + "generateKey", + "generateMipmap", + "generateRequest", + "geolocation", + "gestureObject", + "get", + "getActiveAttrib", + "getActiveUniform", + "getAdjacentText", + "getAll", + "getAllResponseHeaders", + "getAsFile", + "getAsString", + "getAttachedShaders", + "getAttribLocation", + "getAttribute", + "getAttributeNS", + "getAttributeNode", + "getAttributeNodeNS", + "getAudioTracks", + "getBBox", + "getBattery", + "getBlob", + "getBookmark", + "getBoundingClientRect", + "getBufferParameter", + "getByteFrequencyData", + "getByteTimeDomainData", + "getCSSCanvasContext", + "getCTM", + "getCandidateWindowClientRect", + "getChannelData", + "getCharNumAtPosition", + "getClientRect", + "getClientRects", + "getCompositionAlternatives", + "getComputedStyle", + "getComputedTextLength", + "getConfiguration", + "getContext", + "getContextAttributes", + "getCounterValue", + "getCueAsHTML", + "getCueById", + "getCurrentPosition", + "getCurrentTime", + "getData", + "getDatabaseNames", + "getDate", + "getDay", + "getDefaultComputedStyle", + "getDestinationInsertionPoints", + "getDistributedNodes", + "getEditable", + "getElementById", + "getElementsByClassName", + "getElementsByName", + "getElementsByTagName", + "getElementsByTagNameNS", + "getEnclosureList", + "getEndPositionOfChar", + "getEntries", + "getEntriesByName", + "getEntriesByType", + "getError", + "getExtension", + "getExtentOfChar", + "getFeature", + "getFile", + "getFloat32", + "getFloat64", + "getFloatFrequencyData", + "getFloatTimeDomainData", + "getFloatValue", + "getFramebufferAttachmentParameter", + "getFrequencyResponse", + "getFullYear", + "getGamepads", + "getHours", + "getImageData", + "getInt16", + "getInt32", + "getInt8", + "getIntersectionList", + "getItem", + "getItems", + "getKey", + "getLineDash", + "getLocalStreams", + "getMarks", + "getMatchedCSSRules", + "getMeasures", + "getMetadata", + "getMilliseconds", + "getMinutes", + "getModifierState", + "getMonth", + "getNamedItem", + "getNamedItemNS", + "getNotifier", + "getNumberOfChars", + "getOverrideHistoryNavigationMode", + "getOverrideStyle", + "getOwnPropertyDescriptor", + "getOwnPropertyNames", + "getOwnPropertySymbols", + "getParameter", + "getPathSegAtLength", + "getPointAtLength", + "getPreference", + "getPreferenceDefault", + "getPresentationAttribute", + "getPreventDefault", + "getProgramInfoLog", + "getProgramParameter", + "getPropertyCSSValue", + "getPropertyPriority", + "getPropertyShorthand", + "getPropertyValue", + "getPrototypeOf", + "getRGBColorValue", + "getRandomValues", + "getRangeAt", + "getReceivers", + "getRectValue", + "getRegistration", + "getRemoteStreams", + "getRenderbufferParameter", + "getResponseHeader", + "getRoot", + "getRotationOfChar", + "getSVGDocument", + "getScreenCTM", + "getSeconds", + "getSelection", + "getSenders", + "getShaderInfoLog", + "getShaderParameter", + "getShaderPrecisionFormat", + "getShaderSource", + "getSimpleDuration", + "getSiteIcons", + "getSources", + "getSpeculativeParserUrls", + "getStartPositionOfChar", + "getStartTime", + "getStats", + "getStorageUpdates", + "getStreamById", + "getStringValue", + "getSubStringLength", + "getSubscription", + "getSupportedExtensions", + "getTexParameter", + "getTime", + "getTimezoneOffset", + "getTotalLength", + "getTrackById", + "getTracks", + "getTransformToElement", + "getUTCDate", + "getUTCDay", + "getUTCFullYear", + "getUTCHours", + "getUTCMilliseconds", + "getUTCMinutes", + "getUTCMonth", + "getUTCSeconds", + "getUint16", + "getUint32", + "getUint8", + "getUniform", + "getUniformLocation", + "getUserMedia", + "getValues", + "getVarDate", + "getVariableValue", + "getVertexAttrib", + "getVertexAttribOffset", + "getVideoPlaybackQuality", + "getVideoTracks", + "getWakeLockState", + "getYear", + "givenName", + "global", + "globalAlpha", + "globalCompositeOperation", + "glyphOrientationHorizontal", + "glyphOrientationVertical", + "glyphRef", + "go", + "gradientTransform", + "gradientUnits", + "grammars", + "green", + "group", + "groupCollapsed", + "groupEnd", + "hardwareConcurrency", + "has", + "hasAttribute", + "hasAttributeNS", + "hasAttributes", + "hasChildNodes", + "hasComposition", + "hasExtension", + "hasFeature", + "hasFocus", + "hasLayout", + "hasOwnProperty", + "hash", + "head", + "headers", + "heading", + "height", + "hidden", + "hide", + "hideFocus", + "high", + "hint", + "history", + "honorificPrefix", + "honorificSuffix", + "horizontalOverflow", + "host", + "hostname", + "href", + "hreflang", + "hspace", + "html5TagCheckInerface", + "htmlFor", + "htmlText", + "httpEquiv", + "hwTimestamp", + "hypot", + "iccId", + "iceConnectionState", + "iceGatheringState", + "icon", + "id", + "identifier", + "identity", + "ignoreBOM", + "ignoreCase", + "image-orientation", + "image-rendering", + "imageOrientation", + "imageRendering", + "images", + "ime-mode", + "imeMode", + "implementation", + "importKey", + "importNode", + "importStylesheet", + "imports", + "impp", + "imul", + "in1", + "in2", + "inBandMetadataTrackDispatchType", + "inRange", + "includes", + "incremental", + "indeterminate", + "index", + "indexNames", + "indexOf", + "indexedDB", + "inertiaDestinationX", + "inertiaDestinationY", + "info", + "init", + "initAnimationEvent", + "initBeforeLoadEvent", + "initClipboardEvent", + "initCloseEvent", + "initCommandEvent", + "initCompositionEvent", + "initCustomEvent", + "initData", + "initDeviceMotionEvent", + "initDeviceOrientationEvent", + "initDragEvent", + "initErrorEvent", + "initEvent", + "initFocusEvent", + "initGestureEvent", + "initHashChangeEvent", + "initKeyEvent", + "initKeyboardEvent", + "initMSManipulationEvent", + "initMessageEvent", + "initMouseEvent", + "initMouseScrollEvent", + "initMouseWheelEvent", + "initMutationEvent", + "initNSMouseEvent", + "initOverflowEvent", + "initPageEvent", + "initPageTransitionEvent", + "initPointerEvent", + "initPopStateEvent", + "initProgressEvent", + "initScrollAreaEvent", + "initSimpleGestureEvent", + "initStorageEvent", + "initTextEvent", + "initTimeEvent", + "initTouchEvent", + "initTransitionEvent", + "initUIEvent", + "initWebKitAnimationEvent", + "initWebKitTransitionEvent", + "initWebKitWheelEvent", + "initWheelEvent", + "initialTime", + "initialize", + "initiatorType", + "inner", + "innerHTML", + "innerHeight", + "innerText", + "innerWidth", + "input", + "inputBuffer", + "inputEncoding", + "inputMethod", + "insertAdjacentElement", + "insertAdjacentHTML", + "insertAdjacentText", + "insertBefore", + "insertCell", + "insertData", + "insertItemBefore", + "insertNode", + "insertRow", + "insertRule", + "instanceRoot", + "intercept", + "interimResults", + "internalSubset", + "intersectsNode", + "interval", + "invalidIteratorState", + "inverse", + "invertSelf", + "is", + "is2D", + "isAlternate", + "isArray", + "isBingCurrentSearchDefault", + "isBuffer", + "isCandidateWindowVisible", + "isChar", + "isCollapsed", + "isComposing", + "isContentEditable", + "isContentHandlerRegistered", + "isContextLost", + "isDefaultNamespace", + "isDisabled", + "isEnabled", + "isEqual", + "isEqualNode", + "isExtensible", + "isFinite", + "isFramebuffer", + "isFrozen", + "isGenerator", + "isId", + "isInjected", + "isInteger", + "isMap", + "isMultiLine", + "isNaN", + "isOpen", + "isPointInFill", + "isPointInPath", + "isPointInRange", + "isPointInStroke", + "isPrefAlternate", + "isPrimary", + "isProgram", + "isPropertyImplicit", + "isProtocolHandlerRegistered", + "isPrototypeOf", + "isRenderbuffer", + "isSafeInteger", + "isSameNode", + "isSealed", + "isShader", + "isSupported", + "isTextEdit", + "isTexture", + "isTrusted", + "isTypeSupported", + "isView", + "isolation", + "italics", + "item", + "itemId", + "itemProp", + "itemRef", + "itemScope", + "itemType", + "itemValue", + "iterateNext", + "iterator", + "javaEnabled", + "jobTitle", + "join", + "json", + "justify-content", + "justifyContent", + "k1", + "k2", + "k3", + "k4", + "kernelMatrix", + "kernelUnitLengthX", + "kernelUnitLengthY", + "kerning", + "key", + "keyCode", + "keyFor", + "keyIdentifier", + "keyLightEnabled", + "keyLocation", + "keyPath", + "keySystem", + "keyText", + "keyUsage", + "keys", + "keytype", + "kind", + "knee", + "label", + "labels", + "lang", + "language", + "languages", + "largeArcFlag", + "lastChild", + "lastElementChild", + "lastEventId", + "lastIndex", + "lastIndexOf", + "lastMatch", + "lastMessageSubject", + "lastMessageType", + "lastModified", + "lastModifiedDate", + "lastPage", + "lastParen", + "lastState", + "lastStyleSheetSet", + "latitude", + "layerX", + "layerY", + "layoutFlow", + "layoutGrid", + "layoutGridChar", + "layoutGridLine", + "layoutGridMode", + "layoutGridType", + "lbound", + "left", + "leftContext", + "leftMargin", + "length", + "lengthAdjust", + "lengthComputable", + "letter-spacing", + "letterSpacing", + "level", + "lighting-color", + "lightingColor", + "limitingConeAngle", + "line", + "line-height", + "lineAlign", + "lineBreak", + "lineCap", + "lineDashOffset", + "lineHeight", + "lineJoin", + "lineNumber", + "lineTo", + "lineWidth", + "linearRampToValueAtTime", + "lineno", + "link", + "linkColor", + "linkProgram", + "links", + "list", + "list-style", + "list-style-image", + "list-style-position", + "list-style-type", + "listStyle", + "listStyleImage", + "listStylePosition", + "listStyleType", + "listener", + "load", + "loadEventEnd", + "loadEventStart", + "loadTimes", + "loaded", + "localDescription", + "localName", + "localStorage", + "locale", + "localeCompare", + "location", + "locationbar", + "lock", + "lockedFile", + "log", + "log10", + "log1p", + "log2", + "logicalXDPI", + "logicalYDPI", + "longDesc", + "longitude", + "lookupNamespaceURI", + "lookupPrefix", + "loop", + "loopEnd", + "loopStart", + "looping", + "low", + "lower", + "lowerBound", + "lowerOpen", + "lowsrc", + "m11", + "m12", + "m13", + "m14", + "m21", + "m22", + "m23", + "m24", + "m31", + "m32", + "m33", + "m34", + "m41", + "m42", + "m43", + "m44", + "manifest", + "map", + "mapping", + "margin", + "margin-bottom", + "margin-left", + "margin-right", + "margin-top", + "marginBottom", + "marginHeight", + "marginLeft", + "marginRight", + "marginTop", + "marginWidth", + "mark", + "marker", + "marker-end", + "marker-mid", + "marker-offset", + "marker-start", + "markerEnd", + "markerHeight", + "markerMid", + "markerOffset", + "markerStart", + "markerUnits", + "markerWidth", + "marks", + "mask", + "mask-type", + "maskContentUnits", + "maskType", + "maskUnits", + "match", + "matchMedia", + "matchMedium", + "matches", + "matrix", + "matrixTransform", + "max", + "max-height", + "max-width", + "maxAlternatives", + "maxChannelCount", + "maxConnectionsPerServer", + "maxDecibels", + "maxDistance", + "maxHeight", + "maxLength", + "maxTouchPoints", + "maxValue", + "maxWidth", + "measure", + "measureText", + "media", + "mediaDevices", + "mediaElement", + "mediaGroup", + "mediaKeys", + "mediaText", + "meetOrSlice", + "memory", + "menubar", + "mergeAttributes", + "message", + "messageClass", + "messageHandlers", + "metaKey", + "method", + "mimeType", + "mimeTypes", + "min", + "min-height", + "min-width", + "minDecibels", + "minHeight", + "minValue", + "minWidth", + "miterLimit", + "mix-blend-mode", + "mixBlendMode", + "mode", + "modify", + "mount", + "move", + "moveBy", + "moveEnd", + "moveFirst", + "moveFocusDown", + "moveFocusLeft", + "moveFocusRight", + "moveFocusUp", + "moveNext", + "moveRow", + "moveStart", + "moveTo", + "moveToBookmark", + "moveToElementText", + "moveToPoint", + "mozAdd", + "mozAnimationStartTime", + "mozAnon", + "mozApps", + "mozAudioCaptured", + "mozAudioChannelType", + "mozAutoplayEnabled", + "mozCancelAnimationFrame", + "mozCancelFullScreen", + "mozCancelRequestAnimationFrame", + "mozCaptureStream", + "mozCaptureStreamUntilEnded", + "mozClearDataAt", + "mozContact", + "mozContacts", + "mozCreateFileHandle", + "mozCurrentTransform", + "mozCurrentTransformInverse", + "mozCursor", + "mozDash", + "mozDashOffset", + "mozDecodedFrames", + "mozExitPointerLock", + "mozFillRule", + "mozFragmentEnd", + "mozFrameDelay", + "mozFullScreen", + "mozFullScreenElement", + "mozFullScreenEnabled", + "mozGetAll", + "mozGetAllKeys", + "mozGetAsFile", + "mozGetDataAt", + "mozGetMetadata", + "mozGetUserMedia", + "mozHasAudio", + "mozHasItem", + "mozHidden", + "mozImageSmoothingEnabled", + "mozIndexedDB", + "mozInnerScreenX", + "mozInnerScreenY", + "mozInputSource", + "mozIsTextField", + "mozItem", + "mozItemCount", + "mozItems", + "mozLength", + "mozLockOrientation", + "mozMatchesSelector", + "mozMovementX", + "mozMovementY", + "mozOpaque", + "mozOrientation", + "mozPaintCount", + "mozPaintedFrames", + "mozParsedFrames", + "mozPay", + "mozPointerLockElement", + "mozPresentedFrames", + "mozPreservesPitch", + "mozPressure", + "mozPrintCallback", + "mozRTCIceCandidate", + "mozRTCPeerConnection", + "mozRTCSessionDescription", + "mozRemove", + "mozRequestAnimationFrame", + "mozRequestFullScreen", + "mozRequestPointerLock", + "mozSetDataAt", + "mozSetImageElement", + "mozSourceNode", + "mozSrcObject", + "mozSystem", + "mozTCPSocket", + "mozTextStyle", + "mozTypesAt", + "mozUnlockOrientation", + "mozUserCancelled", + "mozVisibilityState", + "msAnimation", + "msAnimationDelay", + "msAnimationDirection", + "msAnimationDuration", + "msAnimationFillMode", + "msAnimationIterationCount", + "msAnimationName", + "msAnimationPlayState", + "msAnimationStartTime", + "msAnimationTimingFunction", + "msBackfaceVisibility", + "msBlockProgression", + "msCSSOMElementFloatMetrics", + "msCaching", + "msCachingEnabled", + "msCancelRequestAnimationFrame", + "msCapsLockWarningOff", + "msClearImmediate", + "msClose", + "msContentZoomChaining", + "msContentZoomFactor", + "msContentZoomLimit", + "msContentZoomLimitMax", + "msContentZoomLimitMin", + "msContentZoomSnap", + "msContentZoomSnapPoints", + "msContentZoomSnapType", + "msContentZooming", + "msConvertURL", + "msCrypto", + "msDoNotTrack", + "msElementsFromPoint", + "msElementsFromRect", + "msExitFullscreen", + "msExtendedCode", + "msFillRule", + "msFirstPaint", + "msFlex", + "msFlexAlign", + "msFlexDirection", + "msFlexFlow", + "msFlexItemAlign", + "msFlexLinePack", + "msFlexNegative", + "msFlexOrder", + "msFlexPack", + "msFlexPositive", + "msFlexPreferredSize", + "msFlexWrap", + "msFlowFrom", + "msFlowInto", + "msFontFeatureSettings", + "msFullscreenElement", + "msFullscreenEnabled", + "msGetInputContext", + "msGetRegionContent", + "msGetUntransformedBounds", + "msGraphicsTrustStatus", + "msGridColumn", + "msGridColumnAlign", + "msGridColumnSpan", + "msGridColumns", + "msGridRow", + "msGridRowAlign", + "msGridRowSpan", + "msGridRows", + "msHidden", + "msHighContrastAdjust", + "msHyphenateLimitChars", + "msHyphenateLimitLines", + "msHyphenateLimitZone", + "msHyphens", + "msImageSmoothingEnabled", + "msImeAlign", + "msIndexedDB", + "msInterpolationMode", + "msIsStaticHTML", + "msKeySystem", + "msKeys", + "msLaunchUri", + "msLockOrientation", + "msManipulationViewsEnabled", + "msMatchMedia", + "msMatchesSelector", + "msMaxTouchPoints", + "msOrientation", + "msOverflowStyle", + "msPerspective", + "msPerspectiveOrigin", + "msPlayToDisabled", + "msPlayToPreferredSourceUri", + "msPlayToPrimary", + "msPointerEnabled", + "msRegionOverflow", + "msReleasePointerCapture", + "msRequestAnimationFrame", + "msRequestFullscreen", + "msSaveBlob", + "msSaveOrOpenBlob", + "msScrollChaining", + "msScrollLimit", + "msScrollLimitXMax", + "msScrollLimitXMin", + "msScrollLimitYMax", + "msScrollLimitYMin", + "msScrollRails", + "msScrollSnapPointsX", + "msScrollSnapPointsY", + "msScrollSnapType", + "msScrollSnapX", + "msScrollSnapY", + "msScrollTranslation", + "msSetImmediate", + "msSetMediaKeys", + "msSetPointerCapture", + "msTextCombineHorizontal", + "msTextSizeAdjust", + "msToBlob", + "msTouchAction", + "msTouchSelect", + "msTraceAsyncCallbackCompleted", + "msTraceAsyncCallbackStarting", + "msTraceAsyncOperationCompleted", + "msTraceAsyncOperationStarting", + "msTransform", + "msTransformOrigin", + "msTransformStyle", + "msTransition", + "msTransitionDelay", + "msTransitionDuration", + "msTransitionProperty", + "msTransitionTimingFunction", + "msUnlockOrientation", + "msUpdateAsyncCallbackRelation", + "msUserSelect", + "msVisibilityState", + "msWrapFlow", + "msWrapMargin", + "msWrapThrough", + "msWriteProfilerMark", + "msZoom", + "msZoomTo", + "mt", + "multiEntry", + "multiSelectionObj", + "multiline", + "multiple", + "multiply", + "multiplySelf", + "mutableFile", + "muted", + "n", + "name", + "nameProp", + "namedItem", + "namedRecordset", + "names", + "namespaceURI", + "namespaces", + "naturalHeight", + "naturalWidth", + "navigate", + "navigation", + "navigationMode", + "navigationStart", + "navigator", + "near", + "nearestViewportElement", + "negative", + "netscape", + "networkState", + "newScale", + "newTranslate", + "newURL", + "newValue", + "newValueSpecifiedUnits", + "newVersion", + "newhome", + "next", + "nextElementSibling", + "nextNode", + "nextPage", + "nextSibling", + "nickname", + "noHref", + "noResize", + "noShade", + "noValidate", + "noWrap", + "nodeName", + "nodeType", + "nodeValue", + "normalize", + "normalizedPathSegList", + "notationName", + "notations", + "note", + "noteGrainOn", + "noteOff", + "noteOn", + "now", + "numOctaves", + "number", + "numberOfChannels", + "numberOfInputs", + "numberOfItems", + "numberOfOutputs", + "numberValue", + "oMatchesSelector", + "object", + "object-fit", + "object-position", + "objectFit", + "objectPosition", + "objectStore", + "objectStoreNames", + "observe", + "of", + "offscreenBuffering", + "offset", + "offsetHeight", + "offsetLeft", + "offsetNode", + "offsetParent", + "offsetTop", + "offsetWidth", + "offsetX", + "offsetY", + "ok", + "oldURL", + "oldValue", + "oldVersion", + "olderShadowRoot", + "onLine", + "onabort", + "onactivate", + "onactive", + "onaddstream", + "onaddtrack", + "onafterprint", + "onafterscriptexecute", + "onafterupdate", + "onaudioend", + "onaudioprocess", + "onaudiostart", + "onautocomplete", + "onautocompleteerror", + "onbeforeactivate", + "onbeforecopy", + "onbeforecut", + "onbeforedeactivate", + "onbeforeeditfocus", + "onbeforepaste", + "onbeforeprint", + "onbeforescriptexecute", + "onbeforeunload", + "onbeforeupdate", + "onblocked", + "onblur", + "onbounce", + "onboundary", + "oncached", + "oncancel", + "oncandidatewindowhide", + "oncandidatewindowshow", + "oncandidatewindowupdate", + "oncanplay", + "oncanplaythrough", + "oncellchange", + "onchange", + "onchargingchange", + "onchargingtimechange", + "onchecking", + "onclick", + "onclose", + "oncompassneedscalibration", + "oncomplete", + "oncontextmenu", + "oncontrolselect", + "oncopy", + "oncuechange", + "oncut", + "ondataavailable", + "ondatachannel", + "ondatasetchanged", + "ondatasetcomplete", + "ondblclick", + "ondeactivate", + "ondevicelight", + "ondevicemotion", + "ondeviceorientation", + "ondeviceproximity", + "ondischargingtimechange", + "ondisplay", + "ondownloading", + "ondrag", + "ondragend", + "ondragenter", + "ondragleave", + "ondragover", + "ondragstart", + "ondrop", + "ondurationchange", + "onemptied", + "onencrypted", + "onend", + "onended", + "onenter", + "onerror", + "onerrorupdate", + "onexit", + "onfilterchange", + "onfinish", + "onfocus", + "onfocusin", + "onfocusout", + "onfullscreenchange", + "onfullscreenerror", + "ongesturechange", + "ongestureend", + "ongesturestart", + "ongotpointercapture", + "onhashchange", + "onhelp", + "onicecandidate", + "oniceconnectionstatechange", + "oninactive", + "oninput", + "oninvalid", + "onkeydown", + "onkeypress", + "onkeyup", + "onlanguagechange", + "onlayoutcomplete", + "onlevelchange", + "onload", + "onloadeddata", + "onloadedmetadata", + "onloadend", + "onloadstart", + "onlosecapture", + "onlostpointercapture", + "only", + "onmark", + "onmessage", + "onmousedown", + "onmouseenter", + "onmouseleave", + "onmousemove", + "onmouseout", + "onmouseover", + "onmouseup", + "onmousewheel", + "onmove", + "onmoveend", + "onmovestart", + "onmozfullscreenchange", + "onmozfullscreenerror", + "onmozorientationchange", + "onmozpointerlockchange", + "onmozpointerlockerror", + "onmscontentzoom", + "onmsfullscreenchange", + "onmsfullscreenerror", + "onmsgesturechange", + "onmsgesturedoubletap", + "onmsgestureend", + "onmsgesturehold", + "onmsgesturestart", + "onmsgesturetap", + "onmsgotpointercapture", + "onmsinertiastart", + "onmslostpointercapture", + "onmsmanipulationstatechanged", + "onmsneedkey", + "onmsorientationchange", + "onmspointercancel", + "onmspointerdown", + "onmspointerenter", + "onmspointerhover", + "onmspointerleave", + "onmspointermove", + "onmspointerout", + "onmspointerover", + "onmspointerup", + "onmssitemodejumplistitemremoved", + "onmsthumbnailclick", + "onnegotiationneeded", + "onnomatch", + "onnoupdate", + "onobsolete", + "onoffline", + "ononline", + "onopen", + "onorientationchange", + "onpagechange", + "onpagehide", + "onpageshow", + "onpaste", + "onpause", + "onplay", + "onplaying", + "onpluginstreamstart", + "onpointercancel", + "onpointerdown", + "onpointerenter", + "onpointerleave", + "onpointerlockchange", + "onpointerlockerror", + "onpointermove", + "onpointerout", + "onpointerover", + "onpointerup", + "onpopstate", + "onprogress", + "onpropertychange", + "onratechange", + "onreadystatechange", + "onremovestream", + "onremovetrack", + "onreset", + "onresize", + "onresizeend", + "onresizestart", + "onresourcetimingbufferfull", + "onresult", + "onresume", + "onrowenter", + "onrowexit", + "onrowsdelete", + "onrowsinserted", + "onscroll", + "onsearch", + "onseeked", + "onseeking", + "onselect", + "onselectionchange", + "onselectstart", + "onshow", + "onsignalingstatechange", + "onsoundend", + "onsoundstart", + "onspeechend", + "onspeechstart", + "onstalled", + "onstart", + "onstatechange", + "onstop", + "onstorage", + "onstoragecommit", + "onsubmit", + "onsuccess", + "onsuspend", + "ontextinput", + "ontimeout", + "ontimeupdate", + "ontoggle", + "ontouchcancel", + "ontouchend", + "ontouchmove", + "ontouchstart", + "ontransitionend", + "onunload", + "onupdateready", + "onupgradeneeded", + "onuserproximity", + "onversionchange", + "onvoiceschanged", + "onvolumechange", + "onwaiting", + "onwarning", + "onwebkitanimationend", + "onwebkitanimationiteration", + "onwebkitanimationstart", + "onwebkitcurrentplaybacktargetiswirelesschanged", + "onwebkitfullscreenchange", + "onwebkitfullscreenerror", + "onwebkitkeyadded", + "onwebkitkeyerror", + "onwebkitkeymessage", + "onwebkitneedkey", + "onwebkitorientationchange", + "onwebkitplaybacktargetavailabilitychanged", + "onwebkitpointerlockchange", + "onwebkitpointerlockerror", + "onwebkitresourcetimingbufferfull", + "onwebkittransitionend", + "onwheel", + "onzoom", + "opacity", + "open", + "openCursor", + "openDatabase", + "openKeyCursor", + "opener", + "opera", + "operationType", + "operator", + "opr", + "optimum", + "options", + "order", + "orderX", + "orderY", + "ordered", + "org", + "orient", + "orientAngle", + "orientType", + "orientation", + "origin", + "originalTarget", + "orphans", + "oscpu", + "outerHTML", + "outerHeight", + "outerText", + "outerWidth", + "outline", + "outline-color", + "outline-offset", + "outline-style", + "outline-width", + "outlineColor", + "outlineOffset", + "outlineStyle", + "outlineWidth", + "outputBuffer", + "overflow", + "overflow-x", + "overflow-y", + "overflowX", + "overflowY", + "overrideMimeType", + "oversample", + "ownerDocument", + "ownerElement", + "ownerNode", + "ownerRule", + "ownerSVGElement", + "owningElement", + "p1", + "p2", + "p3", + "p4", + "pad", + "padding", + "padding-bottom", + "padding-left", + "padding-right", + "padding-top", + "paddingBottom", + "paddingLeft", + "paddingRight", + "paddingTop", + "page", + "page-break-after", + "page-break-before", + "page-break-inside", + "pageBreakAfter", + "pageBreakBefore", + "pageBreakInside", + "pageCount", + "pageX", + "pageXOffset", + "pageY", + "pageYOffset", + "pages", + "paint-order", + "paintOrder", + "paintRequests", + "paintType", + "palette", + "panningModel", + "parent", + "parentElement", + "parentNode", + "parentRule", + "parentStyleSheet", + "parentTextEdit", + "parentWindow", + "parse", + "parseFloat", + "parseFromString", + "parseInt", + "participants", + "password", + "pasteHTML", + "path", + "pathLength", + "pathSegList", + "pathSegType", + "pathSegTypeAsLetter", + "pathname", + "pattern", + "patternContentUnits", + "patternMismatch", + "patternTransform", + "patternUnits", + "pause", + "pauseAnimations", + "pauseOnExit", + "paused", + "pending", + "performance", + "permission", + "persisted", + "personalbar", + "perspective", + "perspective-origin", + "perspectiveOrigin", + "phoneticFamilyName", + "phoneticGivenName", + "photo", + "ping", + "pitch", + "pixelBottom", + "pixelDepth", + "pixelHeight", + "pixelLeft", + "pixelRight", + "pixelStorei", + "pixelTop", + "pixelUnitToMillimeterX", + "pixelUnitToMillimeterY", + "pixelWidth", + "placeholder", + "platform", + "play", + "playbackRate", + "playbackState", + "playbackTime", + "played", + "plugins", + "pluginspage", + "pname", + "pointer-events", + "pointerBeforeReferenceNode", + "pointerEnabled", + "pointerEvents", + "pointerId", + "pointerLockElement", + "pointerType", + "points", + "pointsAtX", + "pointsAtY", + "pointsAtZ", + "polygonOffset", + "pop", + "popupWindowFeatures", + "popupWindowName", + "popupWindowURI", + "port", + "port1", + "port2", + "ports", + "posBottom", + "posHeight", + "posLeft", + "posRight", + "posTop", + "posWidth", + "position", + "positionAlign", + "postError", + "postMessage", + "poster", + "pow", + "powerOff", + "preMultiplySelf", + "precision", + "preferredStyleSheetSet", + "preferredStylesheetSet", + "prefix", + "preload", + "preserveAlpha", + "preserveAspectRatio", + "preserveAspectRatioString", + "pressed", + "pressure", + "prevValue", + "preventDefault", + "preventExtensions", + "previousElementSibling", + "previousNode", + "previousPage", + "previousScale", + "previousSibling", + "previousTranslate", + "primaryKey", + "primitiveType", + "primitiveUnits", + "principals", + "print", + "privateKey", + "probablySupportsContext", + "process", + "processIceMessage", + "product", + "productSub", + "profile", + "profileEnd", + "profiles", + "prompt", + "properties", + "propertyIsEnumerable", + "propertyName", + "protocol", + "protocolLong", + "prototype", + "pseudoClass", + "pseudoElement", + "publicId", + "publicKey", + "published", + "push", + "pushNotification", + "pushState", + "put", + "putImageData", + "quadraticCurveTo", + "qualifier", + "queryCommandEnabled", + "queryCommandIndeterm", + "queryCommandState", + "queryCommandSupported", + "queryCommandText", + "queryCommandValue", + "querySelector", + "querySelectorAll", + "quote", + "quotes", + "r", + "r1", + "r2", + "race", + "radiogroup", + "radiusX", + "radiusY", + "random", + "range", + "rangeCount", + "rangeMax", + "rangeMin", + "rangeOffset", + "rangeOverflow", + "rangeParent", + "rangeUnderflow", + "rate", + "ratio", + "raw", + "read", + "readAsArrayBuffer", + "readAsBinaryString", + "readAsBlob", + "readAsDataURL", + "readAsText", + "readOnly", + "readPixels", + "readReportRequested", + "readyState", + "reason", + "reboot", + "receiver", + "receivers", + "recordNumber", + "recordset", + "rect", + "red", + "redirectCount", + "redirectEnd", + "redirectStart", + "reduce", + "reduceRight", + "reduction", + "refDistance", + "refX", + "refY", + "referenceNode", + "referrer", + "refresh", + "region", + "regionAnchorX", + "regionAnchorY", + "regionId", + "regions", + "register", + "registerContentHandler", + "registerElement", + "registerProtocolHandler", + "reject", + "rel", + "relList", + "relatedNode", + "relatedTarget", + "release", + "releaseCapture", + "releaseEvents", + "releasePointerCapture", + "releaseShaderCompiler", + "reliable", + "reload", + "remainingSpace", + "remoteDescription", + "remove", + "removeAllRanges", + "removeAttribute", + "removeAttributeNS", + "removeAttributeNode", + "removeBehavior", + "removeChild", + "removeCue", + "removeEventListener", + "removeFilter", + "removeImport", + "removeItem", + "removeListener", + "removeNamedItem", + "removeNamedItemNS", + "removeNode", + "removeParameter", + "removeProperty", + "removeRange", + "removeRegion", + "removeRule", + "removeSiteSpecificTrackingException", + "removeSourceBuffer", + "removeStream", + "removeTrack", + "removeVariable", + "removeWakeLockListener", + "removeWebWideTrackingException", + "removedNodes", + "renderbufferStorage", + "renderedBuffer", + "renderingMode", + "repeat", + "replace", + "replaceAdjacentText", + "replaceChild", + "replaceData", + "replaceId", + "replaceItem", + "replaceNode", + "replaceState", + "replaceTrack", + "replaceWholeText", + "reportValidity", + "requestAnimationFrame", + "requestAutocomplete", + "requestData", + "requestFullscreen", + "requestMediaKeySystemAccess", + "requestPermission", + "requestPointerLock", + "requestStart", + "requestingWindow", + "required", + "requiredExtensions", + "requiredFeatures", + "reset", + "resetTransform", + "resize", + "resizeBy", + "resizeTo", + "resolve", + "response", + "responseBody", + "responseEnd", + "responseStart", + "responseText", + "responseType", + "responseURL", + "responseXML", + "restore", + "result", + "resultType", + "resume", + "returnValue", + "rev", + "reverse", + "reversed", + "revocable", + "revokeObjectURL", + "rgbColor", + "right", + "rightContext", + "rightMargin", + "rolloffFactor", + "root", + "rootElement", + "rotate", + "rotateAxisAngle", + "rotateAxisAngleSelf", + "rotateFromVector", + "rotateFromVectorSelf", + "rotateSelf", + "rotation", + "rotationRate", + "round", + "rowIndex", + "rowSpan", + "rows", + "rubyAlign", + "rubyOverhang", + "rubyPosition", + "rules", + "runtime", + "runtimeStyle", + "rx", + "ry", + "safari", + "sampleCoverage", + "sampleRate", + "sandbox", + "save", + "scale", + "scale3d", + "scale3dSelf", + "scaleNonUniform", + "scaleNonUniformSelf", + "scaleSelf", + "scheme", + "scissor", + "scope", + "scopeName", + "scoped", + "screen", + "screenBrightness", + "screenEnabled", + "screenLeft", + "screenPixelToMillimeterX", + "screenPixelToMillimeterY", + "screenTop", + "screenX", + "screenY", + "scripts", + "scroll", + "scroll-behavior", + "scrollAmount", + "scrollBehavior", + "scrollBy", + "scrollByLines", + "scrollByPages", + "scrollDelay", + "scrollHeight", + "scrollIntoView", + "scrollIntoViewIfNeeded", + "scrollLeft", + "scrollLeftMax", + "scrollMaxX", + "scrollMaxY", + "scrollTo", + "scrollTop", + "scrollTopMax", + "scrollWidth", + "scrollX", + "scrollY", + "scrollbar3dLightColor", + "scrollbarArrowColor", + "scrollbarBaseColor", + "scrollbarDarkShadowColor", + "scrollbarFaceColor", + "scrollbarHighlightColor", + "scrollbarShadowColor", + "scrollbarTrackColor", + "scrollbars", + "scrolling", + "sdp", + "sdpMLineIndex", + "sdpMid", + "seal", + "search", + "searchBox", + "searchBoxJavaBridge_", + "searchParams", + "sectionRowIndex", + "secureConnectionStart", + "security", + "seed", + "seekable", + "seeking", + "select", + "selectAllChildren", + "selectNode", + "selectNodeContents", + "selectNodes", + "selectSingleNode", + "selectSubString", + "selected", + "selectedIndex", + "selectedOptions", + "selectedStyleSheetSet", + "selectedStylesheetSet", + "selection", + "selectionDirection", + "selectionEnd", + "selectionStart", + "selector", + "selectorText", + "self", + "send", + "sendAsBinary", + "sendBeacon", + "sender", + "sentTimestamp", + "separator", + "serializeToString", + "serviceWorker", + "sessionId", + "sessionStorage", + "set", + "setActive", + "setAlpha", + "setAttribute", + "setAttributeNS", + "setAttributeNode", + "setAttributeNodeNS", + "setBaseAndExtent", + "setBingCurrentSearchDefault", + "setCapture", + "setColor", + "setCompositeOperation", + "setCurrentTime", + "setCustomValidity", + "setData", + "setDate", + "setDragImage", + "setEnd", + "setEndAfter", + "setEndBefore", + "setEndPoint", + "setFillColor", + "setFilterRes", + "setFloat32", + "setFloat64", + "setFloatValue", + "setFullYear", + "setHours", + "setImmediate", + "setInt16", + "setInt32", + "setInt8", + "setInterval", + "setItem", + "setLineCap", + "setLineDash", + "setLineJoin", + "setLineWidth", + "setLocalDescription", + "setMatrix", + "setMatrixValue", + "setMediaKeys", + "setMilliseconds", + "setMinutes", + "setMiterLimit", + "setMonth", + "setNamedItem", + "setNamedItemNS", + "setNonUserCodeExceptions", + "setOrientToAngle", + "setOrientToAuto", + "setOrientation", + "setOverrideHistoryNavigationMode", + "setPaint", + "setParameter", + "setPeriodicWave", + "setPointerCapture", + "setPosition", + "setPreference", + "setProperty", + "setPrototypeOf", + "setRGBColor", + "setRGBColorICCColor", + "setRadius", + "setRangeText", + "setRemoteDescription", + "setRequestHeader", + "setResizable", + "setResourceTimingBufferSize", + "setRotate", + "setScale", + "setSeconds", + "setSelectionRange", + "setServerCertificate", + "setShadow", + "setSkewX", + "setSkewY", + "setStart", + "setStartAfter", + "setStartBefore", + "setStdDeviation", + "setStringValue", + "setStrokeColor", + "setSuggestResult", + "setTargetAtTime", + "setTargetValueAtTime", + "setTime", + "setTimeout", + "setTransform", + "setTranslate", + "setUTCDate", + "setUTCFullYear", + "setUTCHours", + "setUTCMilliseconds", + "setUTCMinutes", + "setUTCMonth", + "setUTCSeconds", + "setUint16", + "setUint32", + "setUint8", + "setUri", + "setValueAtTime", + "setValueCurveAtTime", + "setVariable", + "setVelocity", + "setVersion", + "setYear", + "settingName", + "settingValue", + "sex", + "shaderSource", + "shadowBlur", + "shadowColor", + "shadowOffsetX", + "shadowOffsetY", + "shadowRoot", + "shape", + "shape-rendering", + "shapeRendering", + "sheet", + "shift", + "shiftKey", + "shiftLeft", + "show", + "showHelp", + "showModal", + "showModalDialog", + "showModelessDialog", + "showNotification", + "sidebar", + "sign", + "signalingState", + "sin", + "singleNodeValue", + "sinh", + "size", + "sizeToContent", + "sizes", + "skewX", + "skewXSelf", + "skewY", + "skewYSelf", + "slice", + "slope", + "small", + "smil", + "smoothingTimeConstant", + "snapToLines", + "snapshotItem", + "snapshotLength", + "some", + "sort", + "source", + "sourceBuffer", + "sourceBuffers", + "sourceIndex", + "spacing", + "span", + "speakAs", + "speaking", + "specified", + "specularConstant", + "specularExponent", + "speechSynthesis", + "speed", + "speedOfSound", + "spellcheck", + "splice", + "split", + "splitText", + "spreadMethod", + "sqrt", + "src", + "srcElement", + "srcFilter", + "srcUrn", + "srcdoc", + "srclang", + "srcset", + "stack", + "stackTraceLimit", + "stacktrace", + "standalone", + "standby", + "start", + "startContainer", + "startIce", + "startOffset", + "startRendering", + "startTime", + "startsWith", + "state", + "status", + "statusMessage", + "statusText", + "statusbar", + "stdDeviationX", + "stdDeviationY", + "stencilFunc", + "stencilFuncSeparate", + "stencilMask", + "stencilMaskSeparate", + "stencilOp", + "stencilOpSeparate", + "step", + "stepDown", + "stepMismatch", + "stepUp", + "sticky", + "stitchTiles", + "stop", + "stop-color", + "stop-opacity", + "stopColor", + "stopImmediatePropagation", + "stopOpacity", + "stopPropagation", + "storageArea", + "storageName", + "storageStatus", + "storeSiteSpecificTrackingException", + "storeWebWideTrackingException", + "stpVersion", + "stream", + "strike", + "stringValue", + "stringify", + "stroke", + "stroke-dasharray", + "stroke-dashoffset", + "stroke-linecap", + "stroke-linejoin", + "stroke-miterlimit", + "stroke-opacity", + "stroke-width", + "strokeDasharray", + "strokeDashoffset", + "strokeLinecap", + "strokeLinejoin", + "strokeMiterlimit", + "strokeOpacity", + "strokeRect", + "strokeStyle", + "strokeText", + "strokeWidth", + "style", + "styleFloat", + "styleMedia", + "styleSheet", + "styleSheetSets", + "styleSheets", + "sub", + "subarray", + "subject", + "submit", + "subscribe", + "substr", + "substring", + "substringData", + "subtle", + "suffix", + "suffixes", + "summary", + "sup", + "supports", + "surfaceScale", + "surroundContents", + "suspend", + "suspendRedraw", + "swapCache", + "swapNode", + "sweepFlag", + "symbols", + "system", + "systemCode", + "systemId", + "systemLanguage", + "systemXDPI", + "systemYDPI", + "tBodies", + "tFoot", + "tHead", + "tabIndex", + "table", + "table-layout", + "tableLayout", + "tableValues", + "tag", + "tagName", + "tagUrn", + "tags", + "taintEnabled", + "takeRecords", + "tan", + "tanh", + "target", + "targetElement", + "targetTouches", + "targetX", + "targetY", + "tel", + "terminate", + "test", + "texImage2D", + "texParameterf", + "texParameteri", + "texSubImage2D", + "text", + "text-align", + "text-anchor", + "text-decoration", + "text-decoration-color", + "text-decoration-line", + "text-decoration-style", + "text-indent", + "text-overflow", + "text-rendering", + "text-shadow", + "text-transform", + "textAlign", + "textAlignLast", + "textAnchor", + "textAutospace", + "textBaseline", + "textContent", + "textDecoration", + "textDecorationBlink", + "textDecorationColor", + "textDecorationLine", + "textDecorationLineThrough", + "textDecorationNone", + "textDecorationOverline", + "textDecorationStyle", + "textDecorationUnderline", + "textIndent", + "textJustify", + "textJustifyTrim", + "textKashida", + "textKashidaSpace", + "textLength", + "textOverflow", + "textRendering", + "textShadow", + "textTracks", + "textTransform", + "textUnderlinePosition", + "then", + "threadId", + "threshold", + "tiltX", + "tiltY", + "time", + "timeEnd", + "timeStamp", + "timeout", + "timestamp", + "timestampOffset", + "timing", + "title", + "toArray", + "toBlob", + "toDataURL", + "toDateString", + "toElement", + "toExponential", + "toFixed", + "toFloat32Array", + "toFloat64Array", + "toGMTString", + "toISOString", + "toJSON", + "toLocaleDateString", + "toLocaleFormat", + "toLocaleLowerCase", + "toLocaleString", + "toLocaleTimeString", + "toLocaleUpperCase", + "toLowerCase", + "toMethod", + "toPrecision", + "toSdp", + "toSource", + "toStaticHTML", + "toString", + "toStringTag", + "toTimeString", + "toUTCString", + "toUpperCase", + "toggle", + "toggleLongPressEnabled", + "tooLong", + "toolbar", + "top", + "topMargin", + "total", + "totalFrameDelay", + "totalVideoFrames", + "touchAction", + "touches", + "trace", + "track", + "transaction", + "transactions", + "transform", + "transform-origin", + "transform-style", + "transformOrigin", + "transformPoint", + "transformString", + "transformStyle", + "transformToDocument", + "transformToFragment", + "transition", + "transition-delay", + "transition-duration", + "transition-property", + "transition-timing-function", + "transitionDelay", + "transitionDuration", + "transitionProperty", + "transitionTimingFunction", + "translate", + "translateSelf", + "translationX", + "translationY", + "trim", + "trimLeft", + "trimRight", + "trueSpeed", + "trunc", + "truncate", + "type", + "typeDetail", + "typeMismatch", + "typeMustMatch", + "types", + "ubound", + "undefined", + "unescape", + "uneval", + "unicode-bidi", + "unicodeBidi", + "uniform1f", + "uniform1fv", + "uniform1i", + "uniform1iv", + "uniform2f", + "uniform2fv", + "uniform2i", + "uniform2iv", + "uniform3f", + "uniform3fv", + "uniform3i", + "uniform3iv", + "uniform4f", + "uniform4fv", + "uniform4i", + "uniform4iv", + "uniformMatrix2fv", + "uniformMatrix3fv", + "uniformMatrix4fv", + "unique", + "uniqueID", + "uniqueNumber", + "unitType", + "units", + "unloadEventEnd", + "unloadEventStart", + "unlock", + "unmount", + "unobserve", + "unpause", + "unpauseAnimations", + "unreadCount", + "unregister", + "unregisterContentHandler", + "unregisterProtocolHandler", + "unscopables", + "unselectable", + "unshift", + "unsubscribe", + "unsuspendRedraw", + "unsuspendRedrawAll", + "unwatch", + "unwrapKey", + "update", + "updateCommands", + "updateIce", + "updateInterval", + "updateSettings", + "updated", + "updating", + "upload", + "upper", + "upperBound", + "upperOpen", + "uri", + "url", + "urn", + "urns", + "usages", + "useCurrentView", + "useMap", + "useProgram", + "usedSpace", + "userAgent", + "userLanguage", + "username", + "v8BreakIterator", + "vAlign", + "vLink", + "valid", + "validateProgram", + "validationMessage", + "validity", + "value", + "valueAsDate", + "valueAsNumber", + "valueAsString", + "valueInSpecifiedUnits", + "valueMissing", + "valueOf", + "valueText", + "valueType", + "values", + "vector-effect", + "vectorEffect", + "velocityAngular", + "velocityExpansion", + "velocityX", + "velocityY", + "vendor", + "vendorSub", + "verify", + "version", + "vertexAttrib1f", + "vertexAttrib1fv", + "vertexAttrib2f", + "vertexAttrib2fv", + "vertexAttrib3f", + "vertexAttrib3fv", + "vertexAttrib4f", + "vertexAttrib4fv", + "vertexAttribDivisorANGLE", + "vertexAttribPointer", + "vertical", + "vertical-align", + "verticalAlign", + "verticalOverflow", + "vibrate", + "videoHeight", + "videoTracks", + "videoWidth", + "view", + "viewBox", + "viewBoxString", + "viewTarget", + "viewTargetString", + "viewport", + "viewportAnchorX", + "viewportAnchorY", + "viewportElement", + "visibility", + "visibilityState", + "visible", + "vlinkColor", + "voice", + "volume", + "vrml", + "vspace", + "w", + "wand", + "warn", + "wasClean", + "watch", + "watchPosition", + "webdriver", + "webkitAddKey", + "webkitAnimation", + "webkitAnimationDelay", + "webkitAnimationDirection", + "webkitAnimationDuration", + "webkitAnimationFillMode", + "webkitAnimationIterationCount", + "webkitAnimationName", + "webkitAnimationPlayState", + "webkitAnimationTimingFunction", + "webkitAppearance", + "webkitAudioContext", + "webkitAudioDecodedByteCount", + "webkitAudioPannerNode", + "webkitBackfaceVisibility", + "webkitBackground", + "webkitBackgroundAttachment", + "webkitBackgroundClip", + "webkitBackgroundColor", + "webkitBackgroundImage", + "webkitBackgroundOrigin", + "webkitBackgroundPosition", + "webkitBackgroundPositionX", + "webkitBackgroundPositionY", + "webkitBackgroundRepeat", + "webkitBackgroundSize", + "webkitBackingStorePixelRatio", + "webkitBorderImage", + "webkitBorderImageOutset", + "webkitBorderImageRepeat", + "webkitBorderImageSlice", + "webkitBorderImageSource", + "webkitBorderImageWidth", + "webkitBoxAlign", + "webkitBoxDirection", + "webkitBoxFlex", + "webkitBoxOrdinalGroup", + "webkitBoxOrient", + "webkitBoxPack", + "webkitBoxSizing", + "webkitCancelAnimationFrame", + "webkitCancelFullScreen", + "webkitCancelKeyRequest", + "webkitCancelRequestAnimationFrame", + "webkitClearResourceTimings", + "webkitClosedCaptionsVisible", + "webkitConvertPointFromNodeToPage", + "webkitConvertPointFromPageToNode", + "webkitCreateShadowRoot", + "webkitCurrentFullScreenElement", + "webkitCurrentPlaybackTargetIsWireless", + "webkitDirectionInvertedFromDevice", + "webkitDisplayingFullscreen", + "webkitEnterFullScreen", + "webkitEnterFullscreen", + "webkitExitFullScreen", + "webkitExitFullscreen", + "webkitExitPointerLock", + "webkitFullScreenKeyboardInputAllowed", + "webkitFullscreenElement", + "webkitFullscreenEnabled", + "webkitGenerateKeyRequest", + "webkitGetAsEntry", + "webkitGetDatabaseNames", + "webkitGetEntries", + "webkitGetEntriesByName", + "webkitGetEntriesByType", + "webkitGetFlowByName", + "webkitGetGamepads", + "webkitGetImageDataHD", + "webkitGetNamedFlows", + "webkitGetRegionFlowRanges", + "webkitGetUserMedia", + "webkitHasClosedCaptions", + "webkitHidden", + "webkitIDBCursor", + "webkitIDBDatabase", + "webkitIDBDatabaseError", + "webkitIDBDatabaseException", + "webkitIDBFactory", + "webkitIDBIndex", + "webkitIDBKeyRange", + "webkitIDBObjectStore", + "webkitIDBRequest", + "webkitIDBTransaction", + "webkitImageSmoothingEnabled", + "webkitIndexedDB", + "webkitInitMessageEvent", + "webkitIsFullScreen", + "webkitKeys", + "webkitLineDashOffset", + "webkitLockOrientation", + "webkitMatchesSelector", + "webkitMediaStream", + "webkitNotifications", + "webkitOfflineAudioContext", + "webkitOrientation", + "webkitPeerConnection00", + "webkitPersistentStorage", + "webkitPointerLockElement", + "webkitPostMessage", + "webkitPreservesPitch", + "webkitPutImageDataHD", + "webkitRTCPeerConnection", + "webkitRegionOverset", + "webkitRequestAnimationFrame", + "webkitRequestFileSystem", + "webkitRequestFullScreen", + "webkitRequestFullscreen", + "webkitRequestPointerLock", + "webkitResolveLocalFileSystemURL", + "webkitSetMediaKeys", + "webkitSetResourceTimingBufferSize", + "webkitShadowRoot", + "webkitShowPlaybackTargetPicker", + "webkitSlice", + "webkitSpeechGrammar", + "webkitSpeechGrammarList", + "webkitSpeechRecognition", + "webkitSpeechRecognitionError", + "webkitSpeechRecognitionEvent", + "webkitStorageInfo", + "webkitSupportsFullscreen", + "webkitTemporaryStorage", + "webkitTextSizeAdjust", + "webkitTransform", + "webkitTransformOrigin", + "webkitTransition", + "webkitTransitionDelay", + "webkitTransitionDuration", + "webkitTransitionProperty", + "webkitTransitionTimingFunction", + "webkitURL", + "webkitUnlockOrientation", + "webkitUserSelect", + "webkitVideoDecodedByteCount", + "webkitVisibilityState", + "webkitWirelessVideoPlaybackDisabled", + "webkitdropzone", + "webstore", + "weight", + "whatToShow", + "wheelDelta", + "wheelDeltaX", + "wheelDeltaY", + "which", + "white-space", + "whiteSpace", + "wholeText", + "widows", + "width", + "will-change", + "willChange", + "willValidate", + "window", + "withCredentials", + "word-break", + "word-spacing", + "word-wrap", + "wordBreak", + "wordSpacing", + "wordWrap", + "wrap", + "wrapKey", + "write", + "writeln", + "writingMode", + "x", + "x1", + "x2", + "xChannelSelector", + "xmlEncoding", + "xmlStandalone", + "xmlVersion", + "xmlbase", + "xmllang", + "xmlspace", + "y", + "y1", + "y2", + "yChannelSelector", + "yandex", + "z", + "z-index", + "zIndex", + "zoom", + "zoomAndPan", + "zoomRectScreen" +] diff --git a/node_modules/html-minifier/node_modules/uglify-js/tools/exports.js b/node_modules/html-minifier/node_modules/uglify-js/tools/exports.js new file mode 100644 index 000000000..e08296f36 --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/tools/exports.js @@ -0,0 +1,5 @@ +exports["Dictionary"] = Dictionary; +exports["TreeWalker"] = TreeWalker; +exports["TreeTransformer"] = TreeTransformer; +exports["minify"] = minify; +exports["_push_uniq"] = push_uniq; diff --git a/node_modules/html-minifier/node_modules/uglify-js/tools/node.js b/node_modules/html-minifier/node_modules/uglify-js/tools/node.js new file mode 100644 index 000000000..dc2701060 --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/tools/node.js @@ -0,0 +1,82 @@ +var fs = require("fs"); + +var UglifyJS = exports; +var FILES = UglifyJS.FILES = [ + "../lib/utils.js", + "../lib/ast.js", + "../lib/parse.js", + "../lib/transform.js", + "../lib/scope.js", + "../lib/output.js", + "../lib/compress.js", + "../lib/sourcemap.js", + "../lib/mozilla-ast.js", + "../lib/propmangle.js", + "../lib/minify.js", + "./exports.js", +].map(function(file){ + return require.resolve(file); +}); + +new Function("MOZ_SourceMap", "exports", function() { + var code = FILES.map(function(file) { + return fs.readFileSync(file, "utf8"); + }); + code.push("exports.describe_ast = " + describe_ast.toString()); + return code.join("\n\n"); +}())( + require("source-map"), + UglifyJS +); + +function describe_ast() { + var out = OutputStream({ beautify: true }); + function doitem(ctor) { + out.print("AST_" + ctor.TYPE); + var props = ctor.SELF_PROPS.filter(function(prop){ + return !/^\$/.test(prop); + }); + if (props.length > 0) { + out.space(); + out.with_parens(function(){ + props.forEach(function(prop, i){ + if (i) out.space(); + out.print(prop); + }); + }); + } + if (ctor.documentation) { + out.space(); + out.print_string(ctor.documentation); + } + if (ctor.SUBCLASSES.length > 0) { + out.space(); + out.with_block(function(){ + ctor.SUBCLASSES.forEach(function(ctor, i){ + out.indent(); + doitem(ctor); + out.newline(); + }); + }); + } + }; + doitem(AST_Node); + return out + "\n"; +} + +function infer_options(options) { + var result = UglifyJS.minify("", options); + return result.error && result.error.defs; +} + +UglifyJS.default_options = function() { + var defs = {}; + Object.keys(infer_options({ 0: 0 })).forEach(function(component) { + var options = {}; + options[component] = { 0: 0 }; + if (options = infer_options(options)) { + defs[component] = options; + } + }); + return defs; +}; diff --git a/node_modules/html-minifier/node_modules/uglify-js/tools/props.html b/node_modules/html-minifier/node_modules/uglify-js/tools/props.html new file mode 100644 index 000000000..f7c777aac --- /dev/null +++ b/node_modules/html-minifier/node_modules/uglify-js/tools/props.html @@ -0,0 +1,61 @@ + + + + + + + -- cgit v1.2.3