From 363723fc84f7b8477592e0105aeb331ec9a017af Mon Sep 17 00:00:00 2001 From: Florian Dold Date: Mon, 14 Aug 2017 05:01:11 +0200 Subject: node_modules --- node_modules/acorn/.npmignore | 1 + node_modules/acorn/AUTHORS | 4 + node_modules/acorn/CHANGELOG.md | 28 + node_modules/acorn/LICENSE | 2 +- node_modules/acorn/README.md | 49 +- node_modules/acorn/bin/acorn | 66 +- node_modules/acorn/dist/acorn.es.js | 3283 ++++++++++++++------------- node_modules/acorn/dist/acorn.js | 3293 ++++++++++++++-------------- node_modules/acorn/dist/acorn_loose.es.js | 1298 +++++------ node_modules/acorn/dist/acorn_loose.js | 1302 +++++------ node_modules/acorn/dist/walk.es.js | 453 ++-- node_modules/acorn/dist/walk.js | 461 ++-- node_modules/acorn/package.json | 14 +- node_modules/acorn/src/.eslintrc | 33 - node_modules/acorn/src/bin/.eslintrc | 6 - node_modules/acorn/src/bin/acorn.js | 62 - node_modules/acorn/src/expression.js | 830 ------- node_modules/acorn/src/identifier.js | 85 - node_modules/acorn/src/index.js | 78 - node_modules/acorn/src/location.js | 26 - node_modules/acorn/src/locutil.js | 42 - node_modules/acorn/src/loose/expression.js | 562 ----- node_modules/acorn/src/loose/index.js | 49 - node_modules/acorn/src/loose/parseutil.js | 1 - node_modules/acorn/src/loose/state.js | 161 -- node_modules/acorn/src/loose/statement.js | 448 ---- node_modules/acorn/src/loose/tokenize.js | 111 - node_modules/acorn/src/lval.js | 236 -- node_modules/acorn/src/node.js | 50 - node_modules/acorn/src/options.js | 127 -- node_modules/acorn/src/parseutil.js | 128 -- node_modules/acorn/src/scope.js | 75 - node_modules/acorn/src/state.js | 115 - node_modules/acorn/src/statement.js | 765 ------- node_modules/acorn/src/tokencontext.js | 139 -- node_modules/acorn/src/tokenize.js | 687 ------ node_modules/acorn/src/tokentype.js | 147 -- node_modules/acorn/src/util.js | 11 - node_modules/acorn/src/walk/index.js | 342 --- node_modules/acorn/src/whitespace.js | 13 - 40 files changed, 5371 insertions(+), 10212 deletions(-) delete mode 100644 node_modules/acorn/src/.eslintrc delete mode 100644 node_modules/acorn/src/bin/.eslintrc delete mode 100644 node_modules/acorn/src/bin/acorn.js delete mode 100644 node_modules/acorn/src/expression.js delete mode 100644 node_modules/acorn/src/identifier.js delete mode 100644 node_modules/acorn/src/index.js delete mode 100644 node_modules/acorn/src/location.js delete mode 100644 node_modules/acorn/src/locutil.js delete mode 100644 node_modules/acorn/src/loose/expression.js delete mode 100644 node_modules/acorn/src/loose/index.js delete mode 100644 node_modules/acorn/src/loose/parseutil.js delete mode 100644 node_modules/acorn/src/loose/state.js delete mode 100644 node_modules/acorn/src/loose/statement.js delete mode 100644 node_modules/acorn/src/loose/tokenize.js delete mode 100644 node_modules/acorn/src/lval.js delete mode 100644 node_modules/acorn/src/node.js delete mode 100644 node_modules/acorn/src/options.js delete mode 100644 node_modules/acorn/src/parseutil.js delete mode 100644 node_modules/acorn/src/scope.js delete mode 100644 node_modules/acorn/src/state.js delete mode 100644 node_modules/acorn/src/statement.js delete mode 100644 node_modules/acorn/src/tokencontext.js delete mode 100644 node_modules/acorn/src/tokenize.js delete mode 100644 node_modules/acorn/src/tokentype.js delete mode 100644 node_modules/acorn/src/util.js delete mode 100644 node_modules/acorn/src/walk/index.js delete mode 100644 node_modules/acorn/src/whitespace.js (limited to 'node_modules/acorn') diff --git a/node_modules/acorn/.npmignore b/node_modules/acorn/.npmignore index eb3644b3a..243d17d19 100644 --- a/node_modules/acorn/.npmignore +++ b/node_modules/acorn/.npmignore @@ -8,3 +8,4 @@ .gitattributes .tern-project .travis.yml +/src diff --git a/node_modules/acorn/AUTHORS b/node_modules/acorn/AUTHORS index 1377f6034..7b9f6a14b 100644 --- a/node_modules/acorn/AUTHORS +++ b/node_modules/acorn/AUTHORS @@ -8,12 +8,14 @@ Angelo Aparajita Fishman Arian Stolwijk Artem Govorov +Bradley Heinz Brandon Mills Charles Hughes Conrad Irwin Daniel Tschinder David Bonnet Domenico Matteo +ehmicky Forbes Lindesay Gilad Peleg impinball @@ -32,6 +34,7 @@ Keheliya Gallaba Kevin Irish Kevin Kwok krator +Marek Marijn Haverbeke Martin Carlberg Mat Garcia @@ -60,5 +63,6 @@ Simen Bekkhus Teddy Katz Timothy Gu Toru Nagashima +Victor Homyakov Wexpo Lyu zsjforcn diff --git a/node_modules/acorn/CHANGELOG.md b/node_modules/acorn/CHANGELOG.md index 6b5834a0c..34d1ac780 100644 --- a/node_modules/acorn/CHANGELOG.md +++ b/node_modules/acorn/CHANGELOG.md @@ -1,3 +1,31 @@ +## 5.1.1 (2017-07-06) + +### Bug fixes + +Fix problem with disambiguating regexp and division after a class. + +## 5.1.0 (2017-07-05) + +### Bug fixes + +Fix tokenizing of regexps in an object-desctructuring `for`/`of` loop and after `yield`. + +Parse zero-prefixed numbers with non-octal digits as decimal. + +Allow object/array patterns in rest parameters. + +Don't error when `yield` is used as a property name. + +Allow `async` as a shorthand object property. + +Make the ES module version of the loose parser actually work. + +### New features + +Implement the [template literal revision proposal](https://github.com/tc39/proposal-template-literal-revision) for ES9. + +New walker functions `full` and `fullAncestor`. + ## 5.0.3 (2017-04-01) ### Bug fixes diff --git a/node_modules/acorn/LICENSE b/node_modules/acorn/LICENSE index a35ebf44f..3f0186552 100644 --- a/node_modules/acorn/LICENSE +++ b/node_modules/acorn/LICENSE @@ -1,4 +1,4 @@ -Copyright (C) 2012-2016 by various contributors (see AUTHORS) +Copyright (C) 2012-2017 by various contributors (see AUTHORS) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal diff --git a/node_modules/acorn/README.md b/node_modules/acorn/README.md index b7efe2341..bd853c43b 100644 --- a/node_modules/acorn/README.md +++ b/node_modules/acorn/README.md @@ -63,9 +63,9 @@ object referring to that same position. [estree]: https://github.com/estree/estree - **ecmaVersion**: Indicates the ECMAScript version to parse. Must be - either 3, 5, 6 (2015), 7 (2016), or 8 (2017). This influences support for strict - mode, the set of reserved words, and support for new syntax features. - Default is 7. + either 3, 5, 6 (2015), 7 (2016), 8 (2017), or 9 (2018, partial + support). This influences support for strict mode, the set of + reserved words, and support for new syntax features. Default is 7. **NOTE**: Only 'stage 4' (finalized) ECMAScript features are being implemented by Acorn. @@ -268,10 +268,33 @@ simply visit all statements and expressions and not produce a meaningful state. (An example of a use of state is to track scope at each point in the tree.) +```js +const acorn = require("acorn") +const walk = require("acorn/dist/walk") + +walk.simple(acorn.parse("let x = 10"), { + Literal(node) { + console.log(`Found a literal: ${node.value}`) + } +}) +``` + **ancestor**`(node, visitors, base, state)` does a 'simple' walk over a tree, building up an array of ancestor nodes (including the current node) and passing the array to the callbacks as a third parameter. +```js +const acorn = require("acorn") +const walk = require("acorn/dist/walk") + +walk.ancestor(acorn.parse("foo('hi')"), { + Literal(_, ancestors) { + console.log("This literal's ancestors are:", + ancestors.map(n => n.type)) + } +}) +``` + **recursive**`(node, state, functions, base)` does a 'recursive' walk, where the walker functions are responsible for continuing the walk on the child nodes of their target node. `state` is the start @@ -287,6 +310,23 @@ default walkers will be used. walker functions in `functions` and filling in the missing ones by taking defaults from `base`. +**full**`(node, callback, base, state)` does a 'full' +walk over a tree, calling the callback with the arguments (node, state, type) +for each node + +**fullAncestor**`(node, callback, base, state)` does a 'full' walk over +a tree, building up an array of ancestor nodes (including the current node) +and passing the array to the callbacks as a third parameter. + +```js +const acorn = require("acorn") +const walk = require("acorn/dist/walk") + +walk.full(acorn.parse("1 + 1"), node => { + console.log(`There's a ${node.type} node at ${node.ch}`) +}) +``` + **findNodeAt**`(node, start, end, test, base, state)` tries to locate a node in a tree at the given start and/or end offsets, which satisfies the predicate `test`. `start` and `end` can be either `null` @@ -407,3 +447,6 @@ looseParser.extend("readToken", function(nextMethod) { - [`acorn-object-spread`](https://github.com/UXtemple/acorn-object-spread): Parse [object spread syntax proposal](https://github.com/sebmarkbage/ecmascript-rest-spread) - [`acorn-es7`](https://www.npmjs.com/package/acorn-es7): Parse [decorator syntax proposal](https://github.com/wycats/javascript-decorators) - [`acorn-objj`](https://www.npmjs.com/package/acorn-objj): [Objective-J](http://www.cappuccino-project.org/learn/objective-j.html) language parser built as Acorn plugin + - [`acorn-object-rest-spread`](https://github.com/victor-homyakov/acorn-object-rest-spread) Parse [Object Rest/Spread Properties proposal](https://github.com/tc39/proposal-object-rest-spread), works with latest Acorn version (5.0.3) + - [`acorn-static-class-property-initializer`](https://github.com/victor-homyakov/acorn-static-class-property-initializer) Partial support for static class properties from [ES Class Fields & Static Properties Proposal](https://github.com/tc39/proposal-class-public-fields) to support static property initializers in [React components written as ES6+ classes](https://babeljs.io/blog/2015/06/07/react-on-es6-plus) + diff --git a/node_modules/acorn/bin/acorn b/node_modules/acorn/bin/acorn index 41b786f42..257195780 100755 --- a/node_modules/acorn/bin/acorn +++ b/node_modules/acorn/bin/acorn @@ -10,60 +10,60 @@ var forceFile; var silent = false; var compact = false; var tokenize = false; -var options = {} +var options = {}; function help(status) { - var print = (status == 0) ? console.log : console.error - print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|...|--ecma2015|--ecma2016|...]") - print(" [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]") - process.exit(status) + var print = (status == 0) ? console.log : console.error; + print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|...|--ecma2015|--ecma2016|...]"); + print(" [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]"); + process.exit(status); } for (var i = 2; i < process.argv.length; ++i) { - var arg = process.argv[i] - if ((arg == "-" || arg[0] != "-") && !infile) infile = arg - else if (arg == "--" && !infile && i + 2 == process.argv.length) forceFile = infile = process.argv[++i] - else if (arg == "--locations") options.locations = true - else if (arg == "--allow-hash-bang") options.allowHashBang = true - else if (arg == "--silent") silent = true - else if (arg == "--compact") compact = true - else if (arg == "--help") help(0) - else if (arg == "--tokenize") tokenize = true - else if (arg == "--module") options.sourceType = "module" + var arg = process.argv[i]; + if ((arg == "-" || arg[0] != "-") && !infile) { infile = arg; } + else if (arg == "--" && !infile && i + 2 == process.argv.length) { forceFile = infile = process.argv[++i]; } + else if (arg == "--locations") { options.locations = true; } + else if (arg == "--allow-hash-bang") { options.allowHashBang = true; } + else if (arg == "--silent") { silent = true; } + else if (arg == "--compact") { compact = true; } + else if (arg == "--help") { help(0); } + else if (arg == "--tokenize") { tokenize = true; } + else if (arg == "--module") { options.sourceType = "module"; } else { - var match = arg.match(/^--ecma(\d+)$/) + var match = arg.match(/^--ecma(\d+)$/); if (match) - options.ecmaVersion = +match[1] + { options.ecmaVersion = +match[1]; } else - help(1) + { help(1); } } } function run(code) { - var result + var result; try { if (!tokenize) { - result = acorn.parse(code, options) + result = acorn.parse(code, options); } else { - result = [] - var tokenizer = acorn.tokenizer(code, options), token + result = []; + var tokenizer$$1 = acorn.tokenizer(code, options), token; do { - token = tokenizer.getToken() - result.push(token) + token = tokenizer$$1.getToken(); + result.push(token); } while (token.type != acorn.tokTypes.eof) } } catch (e) { - console.error(e.message) - process.exit(1) + console.error(e.message); + process.exit(1); } - if (!silent) console.log(JSON.stringify(result, null, compact ? null : 2)) + if (!silent) { console.log(JSON.stringify(result, null, compact ? null : 2)); } } if (forceFile || infile && infile != "-") { - run(fs.readFileSync(infile, "utf8")) + run(fs.readFileSync(infile, "utf8")); } else { - var code = "" - process.stdin.resume() - process.stdin.on("data", function (chunk) { return code += chunk; }) - process.stdin.on("end", function () { return run(code); }) -} \ No newline at end of file + var code = ""; + process.stdin.resume(); + process.stdin.on("data", function (chunk) { return code += chunk; }); + process.stdin.on("end", function () { return run(code); }); +} diff --git a/node_modules/acorn/dist/acorn.es.js b/node_modules/acorn/dist/acorn.es.js index 74417b8aa..5b5977671 100644 --- a/node_modules/acorn/dist/acorn.es.js +++ b/node_modules/acorn/dist/acorn.es.js @@ -6,16 +6,16 @@ var reservedWords = { 6: "enum", strict: "implements interface let package private protected public static yield", strictBind: "eval arguments" -} +}; // And the keywords -var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this" +var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this"; var keywords = { 5: ecma5AndLessKeywords, 6: ecma5AndLessKeywords + " const class extends export import super" -} +}; // ## Character categories @@ -25,13 +25,13 @@ var keywords = { // code point above 128. // Generated by `bin/generate-identifier-regex.js`. -var nonASCIIidentifierStartChars = 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-var nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d4-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c03\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d01-\u0d03\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d82\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf2-\u1cf4\u1cf8\u1cf9\u1dc0-\u1df5\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua900-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f" +var nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0-\u08b4\u08b6-\u08bd\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fd5\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7ae\ua7b0-\ua7b7\ua7f7-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab65\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc"; +var nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d4-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c03\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d01-\u0d03\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d82\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf2-\u1cf4\u1cf8\u1cf9\u1dc0-\u1df5\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua900-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f"; -var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]") -var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]") +var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]"); +var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]"); -nonASCIIidentifierStartChars = nonASCIIidentifierChars = null +nonASCIIidentifierStartChars = nonASCIIidentifierChars = null; // These are a run-length and offset encoded representation of the // >0xffff code points that are a valid part of identifiers. The @@ -40,47 +40,47 @@ nonASCIIidentifierStartChars = nonASCIIidentifierChars = null // generated by bin/generate-identifier-regex.js // eslint-disable-next-line comma-spacing -var astralIdentifierStartCodes = [0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,17,26,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,157,310,10,21,11,7,153,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,26,45,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,785,52,76,44,33,24,27,35,42,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,54,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,86,25,391,63,32,0,449,56,264,8,2,36,18,0,50,29,881,921,103,110,18,195,2749,1070,4050,582,8634,568,8,30,114,29,19,47,17,3,32,20,6,18,881,68,12,0,67,12,65,0,32,6124,20,754,9486,1,3071,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,4149,196,60,67,1213,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42710,42,4148,12,221,3,5761,10591,541] +var astralIdentifierStartCodes = [0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,17,26,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,157,310,10,21,11,7,153,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,26,45,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,785,52,76,44,33,24,27,35,42,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,54,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,86,25,391,63,32,0,449,56,264,8,2,36,18,0,50,29,881,921,103,110,18,195,2749,1070,4050,582,8634,568,8,30,114,29,19,47,17,3,32,20,6,18,881,68,12,0,67,12,65,0,32,6124,20,754,9486,1,3071,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,4149,196,60,67,1213,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42710,42,4148,12,221,3,5761,10591,541]; // eslint-disable-next-line comma-spacing -var astralIdentifierCodes = [509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,1306,2,54,14,32,9,16,3,46,10,54,9,7,2,37,13,2,9,52,0,13,2,49,13,10,2,4,9,83,11,7,0,161,11,6,9,7,3,57,0,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,87,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,423,9,838,7,2,7,17,9,57,21,2,13,19882,9,135,4,60,6,26,9,1016,45,17,3,19723,1,5319,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,2214,6,110,6,6,9,792487,239] +var astralIdentifierCodes = [509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,1306,2,54,14,32,9,16,3,46,10,54,9,7,2,37,13,2,9,52,0,13,2,49,13,10,2,4,9,83,11,7,0,161,11,6,9,7,3,57,0,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,87,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,423,9,838,7,2,7,17,9,57,21,2,13,19882,9,135,4,60,6,26,9,1016,45,17,3,19723,1,5319,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,2214,6,110,6,6,9,792487,239]; // This has a complexity linear to the value of the code. The // assumption is that looking up astral identifier characters is // rare. function isInAstralSet(code, set) { - var pos = 0x10000 + var pos = 0x10000; for (var i = 0; i < set.length; i += 2) { - pos += set[i] - if (pos > code) return false - pos += set[i + 1] - if (pos >= code) return true + pos += set[i]; + if (pos > code) { return false } + pos += set[i + 1]; + if (pos >= code) { return true } } } // Test whether a given character code starts an identifier. function isIdentifierStart(code, astral) { - if (code < 65) return code === 36 - if (code < 91) return true - if (code < 97) return code === 95 - if (code < 123) return true - if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) - if (astral === false) return false + if (code < 65) { return code === 36 } + if (code < 91) { return true } + if (code < 97) { return code === 95 } + if (code < 123) { return true } + if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) } + if (astral === false) { return false } return isInAstralSet(code, astralIdentifierStartCodes) } // Test whether a given character is part of an identifier. function isIdentifierChar(code, astral) { - if (code < 48) return code === 36 - if (code < 58) return true - if (code < 65) return false - if (code < 91) return true - if (code < 97) return code === 95 - if (code < 123) return true - if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) - if (astral === false) return false + if (code < 48) { return code === 36 } + if (code < 58) { return true } + if (code < 65) { return false } + if (code < 91) { return true } + if (code < 97) { return code === 95 } + if (code < 123) { return true } + if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) } + if (astral === false) { return false } return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes) } @@ -110,16 +110,16 @@ function isIdentifierChar(code, astral) { var TokenType = function TokenType(label, conf) { if ( conf === void 0 ) conf = {}; - this.label = label - this.keyword = conf.keyword - this.beforeExpr = !!conf.beforeExpr - this.startsExpr = !!conf.startsExpr - this.isLoop = !!conf.isLoop - this.isAssign = !!conf.isAssign - this.prefix = !!conf.prefix - this.postfix = !!conf.postfix - this.binop = conf.binop || null - this.updateContext = null + this.label = label; + this.keyword = conf.keyword; + this.beforeExpr = !!conf.beforeExpr; + this.startsExpr = !!conf.startsExpr; + this.isLoop = !!conf.isLoop; + this.isAssign = !!conf.isAssign; + this.prefix = !!conf.prefix; + this.postfix = !!conf.postfix; + this.binop = conf.binop || null; + this.updateContext = null; }; function binop(name, prec) { @@ -127,19 +127,20 @@ function binop(name, prec) { } var beforeExpr = {beforeExpr: true}; var startsExpr = {startsExpr: true}; + // Map keyword names to token types. -var keywordTypes = {} +var keywords$1 = {}; // Succinct definitions of keyword token types function kw(name, options) { if ( options === void 0 ) options = {}; - options.keyword = name - return keywordTypes[name] = new TokenType(name, options) + options.keyword = name; + return keywords$1[name] = new TokenType(name, options) } -var tt = { +var types = { num: new TokenType("num", startsExpr), regexp: new TokenType("regexp", startsExpr), string: new TokenType("string", startsExpr), @@ -160,6 +161,7 @@ var tt = { question: new TokenType("?", beforeExpr), arrow: new TokenType("=>", beforeExpr), template: new TokenType("template"), + invalidTemplate: new TokenType("invalidTemplate"), ellipsis: new TokenType("...", beforeExpr), backQuote: new TokenType("`", startsExpr), dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}), @@ -220,7 +222,7 @@ var tt = { _new: kw("new", {beforeExpr: true, startsExpr: true}), _this: kw("this", startsExpr), _super: kw("super", startsExpr), - _class: kw("class"), + _class: kw("class", startsExpr), _extends: kw("extends", beforeExpr), _export: kw("export"), _import: kw("import"), @@ -232,21 +234,21 @@ var tt = { _typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}), _void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}), _delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true}) -} +}; // Matches a whole line break (where CRLF is considered a single // line break). Used to count lines. -var lineBreak = /\r\n?|\n|\u2028|\u2029/ -var lineBreakG = new RegExp(lineBreak.source, "g") +var lineBreak = /\r\n?|\n|\u2028|\u2029/; +var lineBreakG = new RegExp(lineBreak.source, "g"); function isNewLine(code) { return code === 10 || code === 13 || code === 0x2028 || code === 0x2029 } -var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/ +var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/; -var skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g +var skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g; var ref = Object.prototype; var hasOwnProperty = ref.hasOwnProperty; @@ -260,14 +262,14 @@ function has(obj, propName) { var isArray = Array.isArray || (function (obj) { return ( toString.call(obj) === "[object Array]" -); }) +); }); // These are used when `options.locations` is on, for the // `startLoc` and `endLoc` properties. var Position = function Position(line, col) { - this.line = line - this.column = col + this.line = line; + this.column = col; }; Position.prototype.offset = function offset (n) { @@ -275,9 +277,9 @@ Position.prototype.offset = function offset (n) { }; var SourceLocation = function SourceLocation(p, start, end) { - this.start = start - this.end = end - if (p.sourceFile !== null) this.source = p.sourceFile + this.start = start; + this.end = end; + if (p.sourceFile !== null) { this.source = p.sourceFile; } }; // The `getLineInfo` function is mostly useful when the @@ -288,11 +290,11 @@ var SourceLocation = function SourceLocation(p, start, end) { function getLineInfo(input, offset) { for (var line = 1, cur = 0;;) { - lineBreakG.lastIndex = cur - var match = lineBreakG.exec(input) + lineBreakG.lastIndex = cur; + var match = lineBreakG.exec(input); if (match && match.index < offset) { - ++line - cur = match.index + match[0].length + ++line; + cur = match.index + match[0].length; } else { return new Position(line, offset - cur) } @@ -382,28 +384,28 @@ var defaultOptions = { // (non-standard) ParenthesizedExpression nodes preserveParens: false, plugins: {} -} +}; // Interpret and default an options object function getOptions(opts) { - var options = {} + var options = {}; for (var opt in defaultOptions) - options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt] + { options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt]; } if (options.ecmaVersion >= 2015) - options.ecmaVersion -= 2009 + { options.ecmaVersion -= 2009; } if (options.allowReserved == null) - options.allowReserved = options.ecmaVersion < 5 + { options.allowReserved = options.ecmaVersion < 5; } if (isArray(options.onToken)) { - var tokens = options.onToken - options.onToken = function (token) { return tokens.push(token); } + var tokens = options.onToken; + options.onToken = function (token) { return tokens.push(token); }; } if (isArray(options.onComment)) - options.onComment = pushComment(options, options.onComment) + { options.onComment = pushComment(options, options.onComment); } return options } @@ -415,100 +417,100 @@ function pushComment(options, array) { value: text, start: start, end: end - } + }; if (options.locations) - comment.loc = new SourceLocation(this, startLoc, endLoc) + { comment.loc = new SourceLocation(this, startLoc, endLoc); } if (options.ranges) - comment.range = [start, end] - array.push(comment) + { comment.range = [start, end]; } + array.push(comment); } } // Registered plugins -var plugins = {} +var plugins = {}; function keywordRegexp(words) { - return new RegExp("^(" + words.replace(/ /g, "|") + ")$") + return new RegExp("^(?:" + words.replace(/ /g, "|") + ")$") } var Parser = function Parser(options, input, startPos) { - this.options = options = getOptions(options) - this.sourceFile = options.sourceFile - this.keywords = keywordRegexp(keywords[options.ecmaVersion >= 6 ? 6 : 5]) - var reserved = "" + this.options = options = getOptions(options); + this.sourceFile = options.sourceFile; + this.keywords = keywordRegexp(keywords[options.ecmaVersion >= 6 ? 6 : 5]); + var reserved = ""; if (!options.allowReserved) { for (var v = options.ecmaVersion;; v--) - if (reserved = reservedWords[v]) break - if (options.sourceType == "module") reserved += " await" + { if (reserved = reservedWords[v]) { break } } + if (options.sourceType == "module") { reserved += " await"; } } - this.reservedWords = keywordRegexp(reserved) - var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict - this.reservedWordsStrict = keywordRegexp(reservedStrict) - this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + reservedWords.strictBind) - this.input = String(input) + this.reservedWords = keywordRegexp(reserved); + var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict; + this.reservedWordsStrict = keywordRegexp(reservedStrict); + this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + reservedWords.strictBind); + this.input = String(input); // Used to signal to callers of `readWord1` whether the word // contained any escape sequences. This is needed because words with // escape sequences must not be interpreted as keywords. - this.containsEsc = false + this.containsEsc = false; // Load plugins - this.loadPlugins(options.plugins) + this.loadPlugins(options.plugins); // Set up token state // The current position of the tokenizer in the input. if (startPos) { - this.pos = startPos - this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1 - this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length + this.pos = startPos; + this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1; + this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length; } else { - this.pos = this.lineStart = 0 - this.curLine = 1 + this.pos = this.lineStart = 0; + this.curLine = 1; } // Properties of the current token: // Its type - this.type = tt.eof + this.type = types.eof; // For tokens that include more information than their type, the value - this.value = null + this.value = null; // Its start and end offset - this.start = this.end = this.pos + this.start = this.end = this.pos; // And, if locations are used, the {line, column} object // corresponding to those offsets - this.startLoc = this.endLoc = this.curPosition() + this.startLoc = this.endLoc = this.curPosition(); // Position information for the previous token - this.lastTokEndLoc = this.lastTokStartLoc = null - this.lastTokStart = this.lastTokEnd = this.pos + this.lastTokEndLoc = this.lastTokStartLoc = null; + this.lastTokStart = this.lastTokEnd = this.pos; // The context stack is used to superficially track syntactic // context to predict whether a regular expression is allowed in a // given position. - this.context = this.initialContext() - this.exprAllowed = true + this.context = this.initialContext(); + this.exprAllowed = true; // Figure out if it's a module code. - this.inModule = options.sourceType === "module" - this.strict = this.inModule || this.strictDirective(this.pos) + this.inModule = options.sourceType === "module"; + this.strict = this.inModule || this.strictDirective(this.pos); // Used to signify the start of a potential arrow function - this.potentialArrowAt = -1 + this.potentialArrowAt = -1; // Flags to track whether we are in a function, a generator, an async function. - this.inFunction = this.inGenerator = this.inAsync = false + this.inFunction = this.inGenerator = this.inAsync = false; // Positions to delayed-check that yield/await does not exist in default parameters. - this.yieldPos = this.awaitPos = 0 + this.yieldPos = this.awaitPos = 0; // Labels in scope. - this.labels = [] + this.labels = []; // If enabled, skip leading hashbang line. if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!") - this.skipLineComment(2) + { this.skipLineComment(2); } // Scope tracking for duplicate variable names (see scope.js) - this.scopeStack = [] - this.enterFunctionScope() + this.scopeStack = []; + this.enterFunctionScope(); }; // DEPRECATED Kept for backwards compatibility until 3.0 in case a plugin uses them @@ -516,151 +518,155 @@ Parser.prototype.isKeyword = function isKeyword (word) { return this.keywords.te Parser.prototype.isReservedWord = function isReservedWord (word) { return this.reservedWords.test(word) }; Parser.prototype.extend = function extend (name, f) { - this[name] = f(this[name]) + this[name] = f(this[name]); }; Parser.prototype.loadPlugins = function loadPlugins (pluginConfigs) { var this$1 = this; for (var name in pluginConfigs) { - var plugin = plugins[name] - if (!plugin) throw new Error("Plugin '" + name + "' not found") - plugin(this$1, pluginConfigs[name]) + var plugin = plugins[name]; + if (!plugin) { throw new Error("Plugin '" + name + "' not found") } + plugin(this$1, pluginConfigs[name]); } }; Parser.prototype.parse = function parse () { - var node = this.options.program || this.startNode() - this.nextToken() + var node = this.options.program || this.startNode(); + this.nextToken(); return this.parseTopLevel(node) }; -var pp = Parser.prototype +var pp = Parser.prototype; // ## Parser utilities -var literal = /^(?:'((?:[^']|\.)*)'|"((?:[^"]|\.)*)"|;)/ +var literal = /^(?:'((?:[^']|\.)*)'|"((?:[^"]|\.)*)"|;)/; pp.strictDirective = function(start) { var this$1 = this; for (;;) { - skipWhiteSpace.lastIndex = start - start += skipWhiteSpace.exec(this$1.input)[0].length - var match = literal.exec(this$1.input.slice(start)) - if (!match) return false - if ((match[1] || match[2]) == "use strict") return true - start += match[0].length + skipWhiteSpace.lastIndex = start; + start += skipWhiteSpace.exec(this$1.input)[0].length; + var match = literal.exec(this$1.input.slice(start)); + if (!match) { return false } + if ((match[1] || match[2]) == "use strict") { return true } + start += match[0].length; } -} +}; // Predicate that tests whether the next token is of the given // type, and if yes, consumes it as a side effect. pp.eat = function(type) { if (this.type === type) { - this.next() + this.next(); return true } else { return false } -} +}; // Tests whether parsed token is a contextual keyword. pp.isContextual = function(name) { - return this.type === tt.name && this.value === name -} + return this.type === types.name && this.value === name +}; // Consumes contextual keyword if possible. pp.eatContextual = function(name) { - return this.value === name && this.eat(tt.name) -} + return this.value === name && this.eat(types.name) +}; // Asserts that following token is given contextual keyword. pp.expectContextual = function(name) { - if (!this.eatContextual(name)) this.unexpected() -} + if (!this.eatContextual(name)) { this.unexpected(); } +}; // Test whether a semicolon can be inserted at the current position. pp.canInsertSemicolon = function() { - return this.type === tt.eof || - this.type === tt.braceR || + return this.type === types.eof || + this.type === types.braceR || lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) -} +}; pp.insertSemicolon = function() { if (this.canInsertSemicolon()) { if (this.options.onInsertedSemicolon) - this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc) + { this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); } return true } -} +}; // Consume a semicolon, or, failing that, see if we are allowed to // pretend that there is a semicolon at this position. pp.semicolon = function() { - if (!this.eat(tt.semi) && !this.insertSemicolon()) this.unexpected() -} + if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); } +}; pp.afterTrailingComma = function(tokType, notNext) { if (this.type == tokType) { if (this.options.onTrailingComma) - this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc) + { this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); } if (!notNext) - this.next() + { this.next(); } return true } -} +}; // Expect a token of a given type. If found, consume it, otherwise, // raise an unexpected token error. pp.expect = function(type) { - this.eat(type) || this.unexpected() -} + this.eat(type) || this.unexpected(); +}; // Raise an unexpected token error. pp.unexpected = function(pos) { - this.raise(pos != null ? pos : this.start, "Unexpected token") -} - -var DestructuringErrors = function DestructuringErrors() { - this.shorthandAssign = this.trailingComma = this.parenthesizedAssign = this.parenthesizedBind = -1 + this.raise(pos != null ? pos : this.start, "Unexpected token"); }; +function DestructuringErrors() { + this.shorthandAssign = + this.trailingComma = + this.parenthesizedAssign = + this.parenthesizedBind = + -1; +} + pp.checkPatternErrors = function(refDestructuringErrors, isAssign) { - if (!refDestructuringErrors) return + if (!refDestructuringErrors) { return } if (refDestructuringErrors.trailingComma > -1) - this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element") - var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind - if (parens > -1) this.raiseRecoverable(parens, "Parenthesized pattern") -} + { this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element"); } + var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind; + if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); } +}; pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) { - var pos = refDestructuringErrors ? refDestructuringErrors.shorthandAssign : -1 - if (!andThrow) return pos >= 0 - if (pos > -1) this.raise(pos, "Shorthand property assignments are valid only in destructuring patterns") -} + var pos = refDestructuringErrors ? refDestructuringErrors.shorthandAssign : -1; + if (!andThrow) { return pos >= 0 } + if (pos > -1) { this.raise(pos, "Shorthand property assignments are valid only in destructuring patterns"); } +}; pp.checkYieldAwaitInDefaultParams = function() { if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos)) - this.raise(this.yieldPos, "Yield expression cannot be a default value") + { this.raise(this.yieldPos, "Yield expression cannot be a default value"); } if (this.awaitPos) - this.raise(this.awaitPos, "Await expression cannot be a default value") -} + { this.raise(this.awaitPos, "Await expression cannot be a default value"); } +}; pp.isSimpleAssignTarget = function(expr) { if (expr.type === "ParenthesizedExpression") - return this.isSimpleAssignTarget(expr.expression) + { return this.isSimpleAssignTarget(expr.expression) } return expr.type === "Identifier" || expr.type === "MemberExpression" -} +}; -var pp$1 = Parser.prototype +var pp$1 = Parser.prototype; // ### Statement parsing @@ -672,50 +678,51 @@ var pp$1 = Parser.prototype pp$1.parseTopLevel = function(node) { var this$1 = this; - var exports = {} - if (!node.body) node.body = [] - while (this.type !== tt.eof) { - var stmt = this$1.parseStatement(true, true, exports) - node.body.push(stmt) + var exports = {}; + if (!node.body) { node.body = []; } + while (this.type !== types.eof) { + var stmt = this$1.parseStatement(true, true, exports); + node.body.push(stmt); } - this.next() + this.next(); if (this.options.ecmaVersion >= 6) { - node.sourceType = this.options.sourceType + node.sourceType = this.options.sourceType; } return this.finishNode(node, "Program") -} +}; var loopLabel = {kind: "loop"}; var switchLabel = {kind: "switch"}; + pp$1.isLet = function() { - if (this.type !== tt.name || this.options.ecmaVersion < 6 || this.value != "let") return false - skipWhiteSpace.lastIndex = this.pos - var skip = skipWhiteSpace.exec(this.input) - var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next) - if (nextCh === 91 || nextCh == 123) return true // '{' and '[' + if (this.type !== types.name || this.options.ecmaVersion < 6 || this.value != "let") { return false } + skipWhiteSpace.lastIndex = this.pos; + var skip = skipWhiteSpace.exec(this.input); + var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next); + if (nextCh === 91 || nextCh == 123) { return true } // '{' and '[' if (isIdentifierStart(nextCh, true)) { - var pos = next + 1 - while (isIdentifierChar(this.input.charCodeAt(pos), true)) ++pos - var ident = this.input.slice(next, pos) - if (!this.isKeyword(ident)) return true + var pos = next + 1; + while (isIdentifierChar(this.input.charCodeAt(pos), true)) { ++pos; } + var ident = this.input.slice(next, pos); + if (!this.isKeyword(ident)) { return true } } return false -} +}; // check 'async [no LineTerminator here] function' // - 'async /*foo*/ function' is OK. // - 'async /*\n*/ function' is invalid. pp$1.isAsyncFunction = function() { - if (this.type !== tt.name || this.options.ecmaVersion < 8 || this.value != "async") - return false + if (this.type !== types.name || this.options.ecmaVersion < 8 || this.value != "async") + { return false } - skipWhiteSpace.lastIndex = this.pos - var skip = skipWhiteSpace.exec(this.input) - var next = this.pos + skip[0].length + skipWhiteSpace.lastIndex = this.pos; + var skip = skipWhiteSpace.exec(this.input); + var next = this.pos + skip[0].length; return !lineBreak.test(this.input.slice(this.pos, next)) && this.input.slice(next, next + 8) === "function" && (next + 8 == this.input.length || !isIdentifierChar(this.input.charAt(next + 8))) -} +}; // Parse a single statement. // @@ -725,11 +732,11 @@ pp$1.isAsyncFunction = function() { // does not help. pp$1.parseStatement = function(declaration, topLevel, exports) { - var starttype = this.type, node = this.startNode(), kind + var starttype = this.type, node = this.startNode(), kind; if (this.isLet()) { - starttype = tt._var - kind = "let" + starttype = types._var; + kind = "let"; } // Most types of statements are recognized by the keyword they @@ -737,38 +744,38 @@ pp$1.parseStatement = function(declaration, topLevel, exports) { // complexity. switch (starttype) { - case tt._break: case tt._continue: return this.parseBreakContinueStatement(node, starttype.keyword) - case tt._debugger: return this.parseDebuggerStatement(node) - case tt._do: return this.parseDoStatement(node) - case tt._for: return this.parseForStatement(node) - case tt._function: - if (!declaration && this.options.ecmaVersion >= 6) this.unexpected() + case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword) + case types._debugger: return this.parseDebuggerStatement(node) + case types._do: return this.parseDoStatement(node) + case types._for: return this.parseForStatement(node) + case types._function: + if (!declaration && this.options.ecmaVersion >= 6) { this.unexpected(); } return this.parseFunctionStatement(node, false) - case tt._class: - if (!declaration) this.unexpected() + case types._class: + if (!declaration) { this.unexpected(); } return this.parseClass(node, true) - case tt._if: return this.parseIfStatement(node) - case tt._return: return this.parseReturnStatement(node) - case tt._switch: return this.parseSwitchStatement(node) - case tt._throw: return this.parseThrowStatement(node) - case tt._try: return this.parseTryStatement(node) - case tt._const: case tt._var: - kind = kind || this.value - if (!declaration && kind != "var") this.unexpected() + case types._if: return this.parseIfStatement(node) + case types._return: return this.parseReturnStatement(node) + case types._switch: return this.parseSwitchStatement(node) + case types._throw: return this.parseThrowStatement(node) + case types._try: return this.parseTryStatement(node) + case types._const: case types._var: + kind = kind || this.value; + if (!declaration && kind != "var") { this.unexpected(); } return this.parseVarStatement(node, kind) - case tt._while: return this.parseWhileStatement(node) - case tt._with: return this.parseWithStatement(node) - case tt.braceL: return this.parseBlock() - case tt.semi: return this.parseEmptyStatement(node) - case tt._export: - case tt._import: + case types._while: return this.parseWhileStatement(node) + case types._with: return this.parseWithStatement(node) + case types.braceL: return this.parseBlock() + case types.semi: return this.parseEmptyStatement(node) + case types._export: + case types._import: if (!this.options.allowImportExportEverywhere) { if (!topLevel) - this.raise(this.start, "'import' and 'export' may only appear at the top level") + { this.raise(this.start, "'import' and 'export' may only appear at the top level"); } if (!this.inModule) - this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'") + { this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); } } - return starttype === tt._import ? this.parseImport(node) : this.parseExport(node, exports) + return starttype === types._import ? this.parseImport(node) : this.parseExport(node, exports) // If the statement does not start with a statement keyword or a // brace, it's an ExpressionStatement or LabeledStatement. We @@ -777,62 +784,62 @@ pp$1.parseStatement = function(declaration, topLevel, exports) { // Identifier node, we switch to interpreting it as a label. default: if (this.isAsyncFunction() && declaration) { - this.next() + this.next(); return this.parseFunctionStatement(node, true) } - var maybeName = this.value, expr = this.parseExpression() - if (starttype === tt.name && expr.type === "Identifier" && this.eat(tt.colon)) - return this.parseLabeledStatement(node, maybeName, expr) - else return this.parseExpressionStatement(node, expr) + var maybeName = this.value, expr = this.parseExpression(); + if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon)) + { return this.parseLabeledStatement(node, maybeName, expr) } + else { return this.parseExpressionStatement(node, expr) } } -} +}; pp$1.parseBreakContinueStatement = function(node, keyword) { var this$1 = this; - var isBreak = keyword == "break" - this.next() - if (this.eat(tt.semi) || this.insertSemicolon()) node.label = null - else if (this.type !== tt.name) this.unexpected() + var isBreak = keyword == "break"; + this.next(); + if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; } + else if (this.type !== types.name) { this.unexpected(); } else { - node.label = this.parseIdent() - this.semicolon() + node.label = this.parseIdent(); + this.semicolon(); } // Verify that there is an actual destination to break or // continue to. - var i = 0 + var i = 0; for (; i < this.labels.length; ++i) { - var lab = this$1.labels[i] + var lab = this$1.labels[i]; if (node.label == null || lab.name === node.label.name) { - if (lab.kind != null && (isBreak || lab.kind === "loop")) break - if (node.label && isBreak) break + if (lab.kind != null && (isBreak || lab.kind === "loop")) { break } + if (node.label && isBreak) { break } } } - if (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword) + if (i === this.labels.length) { this.raise(node.start, "Unsyntactic " + keyword); } return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement") -} +}; pp$1.parseDebuggerStatement = function(node) { - this.next() - this.semicolon() + this.next(); + this.semicolon(); return this.finishNode(node, "DebuggerStatement") -} +}; pp$1.parseDoStatement = function(node) { - this.next() - this.labels.push(loopLabel) - node.body = this.parseStatement(false) - this.labels.pop() - this.expect(tt._while) - node.test = this.parseParenExpression() + this.next(); + this.labels.push(loopLabel); + node.body = this.parseStatement(false); + this.labels.pop(); + this.expect(types._while); + node.test = this.parseParenExpression(); if (this.options.ecmaVersion >= 6) - this.eat(tt.semi) + { this.eat(types.semi); } else - this.semicolon() + { this.semicolon(); } return this.finishNode(node, "DoWhileStatement") -} +}; // Disambiguating between a `for` and a `for`/`in` or `for`/`of` // loop is non-trivial. Basically, we have to parse the init `var` @@ -843,202 +850,207 @@ pp$1.parseDoStatement = function(node) { // is a regular `for` loop. pp$1.parseForStatement = function(node) { - this.next() - this.labels.push(loopLabel) - this.enterLexicalScope() - this.expect(tt.parenL) - if (this.type === tt.semi) return this.parseFor(node, null) - var isLet = this.isLet() - if (this.type === tt._var || this.type === tt._const || isLet) { - var init$1 = this.startNode(), kind = isLet ? "let" : this.value - this.next() - this.parseVar(init$1, true, kind) - this.finishNode(init$1, "VariableDeclaration") - if ((this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1 && + this.next(); + this.labels.push(loopLabel); + this.enterLexicalScope(); + this.expect(types.parenL); + if (this.type === types.semi) { return this.parseFor(node, null) } + var isLet = this.isLet(); + if (this.type === types._var || this.type === types._const || isLet) { + var init$1 = this.startNode(), kind = isLet ? "let" : this.value; + this.next(); + this.parseVar(init$1, true, kind); + this.finishNode(init$1, "VariableDeclaration"); + if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1 && !(kind !== "var" && init$1.declarations[0].init)) - return this.parseForIn(node, init$1) + { return this.parseForIn(node, init$1) } return this.parseFor(node, init$1) } - var refDestructuringErrors = new DestructuringErrors - var init = this.parseExpression(true, refDestructuringErrors) - if (this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) { - this.toAssignable(init) - this.checkLVal(init) - this.checkPatternErrors(refDestructuringErrors, true) + var refDestructuringErrors = new DestructuringErrors; + var init = this.parseExpression(true, refDestructuringErrors); + if (this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) { + this.toAssignable(init); + this.checkLVal(init); + this.checkPatternErrors(refDestructuringErrors, true); return this.parseForIn(node, init) } else { - this.checkExpressionErrors(refDestructuringErrors, true) + this.checkExpressionErrors(refDestructuringErrors, true); } return this.parseFor(node, init) -} +}; pp$1.parseFunctionStatement = function(node, isAsync) { - this.next() + this.next(); return this.parseFunction(node, true, false, isAsync) -} +}; pp$1.isFunction = function() { - return this.type === tt._function || this.isAsyncFunction() -} + return this.type === types._function || this.isAsyncFunction() +}; pp$1.parseIfStatement = function(node) { - this.next() - node.test = this.parseParenExpression() + this.next(); + node.test = this.parseParenExpression(); // allow function declarations in branches, but only in non-strict mode - node.consequent = this.parseStatement(!this.strict && this.isFunction()) - node.alternate = this.eat(tt._else) ? this.parseStatement(!this.strict && this.isFunction()) : null + node.consequent = this.parseStatement(!this.strict && this.isFunction()); + node.alternate = this.eat(types._else) ? this.parseStatement(!this.strict && this.isFunction()) : null; return this.finishNode(node, "IfStatement") -} +}; pp$1.parseReturnStatement = function(node) { if (!this.inFunction && !this.options.allowReturnOutsideFunction) - this.raise(this.start, "'return' outside of function") - this.next() + { this.raise(this.start, "'return' outside of function"); } + this.next(); // In `return` (and `break`/`continue`), the keywords with // optional arguments, we eagerly look for a semicolon or the // possibility to insert one. - if (this.eat(tt.semi) || this.insertSemicolon()) node.argument = null - else { node.argument = this.parseExpression(); this.semicolon() } + if (this.eat(types.semi) || this.insertSemicolon()) { node.argument = null; } + else { node.argument = this.parseExpression(); this.semicolon(); } return this.finishNode(node, "ReturnStatement") -} +}; pp$1.parseSwitchStatement = function(node) { var this$1 = this; - this.next() - node.discriminant = this.parseParenExpression() - node.cases = [] - this.expect(tt.braceL) - this.labels.push(switchLabel) - this.enterLexicalScope() + this.next(); + node.discriminant = this.parseParenExpression(); + node.cases = []; + this.expect(types.braceL); + this.labels.push(switchLabel); + this.enterLexicalScope(); // Statements under must be grouped (by label) in SwitchCase // nodes. `cur` is used to keep the node that we are currently // adding statements to. - var cur - for (var sawDefault = false; this.type != tt.braceR;) { - if (this$1.type === tt._case || this$1.type === tt._default) { - var isCase = this$1.type === tt._case - if (cur) this$1.finishNode(cur, "SwitchCase") - node.cases.push(cur = this$1.startNode()) - cur.consequent = [] - this$1.next() + var cur; + for (var sawDefault = false; this.type != types.braceR;) { + if (this$1.type === types._case || this$1.type === types._default) { + var isCase = this$1.type === types._case; + if (cur) { this$1.finishNode(cur, "SwitchCase"); } + node.cases.push(cur = this$1.startNode()); + cur.consequent = []; + this$1.next(); if (isCase) { - cur.test = this$1.parseExpression() + cur.test = this$1.parseExpression(); } else { - if (sawDefault) this$1.raiseRecoverable(this$1.lastTokStart, "Multiple default clauses") - sawDefault = true - cur.test = null + if (sawDefault) { this$1.raiseRecoverable(this$1.lastTokStart, "Multiple default clauses"); } + sawDefault = true; + cur.test = null; } - this$1.expect(tt.colon) + this$1.expect(types.colon); } else { - if (!cur) this$1.unexpected() - cur.consequent.push(this$1.parseStatement(true)) + if (!cur) { this$1.unexpected(); } + cur.consequent.push(this$1.parseStatement(true)); } } - this.exitLexicalScope() - if (cur) this.finishNode(cur, "SwitchCase") - this.next() // Closing brace - this.labels.pop() + this.exitLexicalScope(); + if (cur) { this.finishNode(cur, "SwitchCase"); } + this.next(); // Closing brace + this.labels.pop(); return this.finishNode(node, "SwitchStatement") -} +}; pp$1.parseThrowStatement = function(node) { - this.next() + this.next(); if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) - this.raise(this.lastTokEnd, "Illegal newline after throw") - node.argument = this.parseExpression() - this.semicolon() + { this.raise(this.lastTokEnd, "Illegal newline after throw"); } + node.argument = this.parseExpression(); + this.semicolon(); return this.finishNode(node, "ThrowStatement") -} +}; // Reused empty array added for node fields that are always empty. -var empty = [] +var empty = []; pp$1.parseTryStatement = function(node) { - this.next() - node.block = this.parseBlock() - node.handler = null - if (this.type === tt._catch) { - var clause = this.startNode() - this.next() - this.expect(tt.parenL) - clause.param = this.parseBindingAtom() - this.enterLexicalScope() - this.checkLVal(clause.param, "let") - this.expect(tt.parenR) - clause.body = this.parseBlock(false) - this.exitLexicalScope() - node.handler = this.finishNode(clause, "CatchClause") - } - node.finalizer = this.eat(tt._finally) ? this.parseBlock() : null + this.next(); + node.block = this.parseBlock(); + node.handler = null; + if (this.type === types._catch) { + var clause = this.startNode(); + this.next(); + this.expect(types.parenL); + clause.param = this.parseBindingAtom(); + this.enterLexicalScope(); + this.checkLVal(clause.param, "let"); + this.expect(types.parenR); + clause.body = this.parseBlock(false); + this.exitLexicalScope(); + node.handler = this.finishNode(clause, "CatchClause"); + } + node.finalizer = this.eat(types._finally) ? this.parseBlock() : null; if (!node.handler && !node.finalizer) - this.raise(node.start, "Missing catch or finally clause") + { this.raise(node.start, "Missing catch or finally clause"); } return this.finishNode(node, "TryStatement") -} +}; pp$1.parseVarStatement = function(node, kind) { - this.next() - this.parseVar(node, false, kind) - this.semicolon() + this.next(); + this.parseVar(node, false, kind); + this.semicolon(); return this.finishNode(node, "VariableDeclaration") -} +}; pp$1.parseWhileStatement = function(node) { - this.next() - node.test = this.parseParenExpression() - this.labels.push(loopLabel) - node.body = this.parseStatement(false) - this.labels.pop() + this.next(); + node.test = this.parseParenExpression(); + this.labels.push(loopLabel); + node.body = this.parseStatement(false); + this.labels.pop(); return this.finishNode(node, "WhileStatement") -} +}; pp$1.parseWithStatement = function(node) { - if (this.strict) this.raise(this.start, "'with' in strict mode") - this.next() - node.object = this.parseParenExpression() - node.body = this.parseStatement(false) + if (this.strict) { this.raise(this.start, "'with' in strict mode"); } + this.next(); + node.object = this.parseParenExpression(); + node.body = this.parseStatement(false); return this.finishNode(node, "WithStatement") -} +}; pp$1.parseEmptyStatement = function(node) { - this.next() + this.next(); return this.finishNode(node, "EmptyStatement") -} +}; pp$1.parseLabeledStatement = function(node, maybeName, expr) { var this$1 = this; - for (var i = 0; i < this.labels.length; ++i) - if (this$1.labels[i].name === maybeName) this$1.raise(expr.start, "Label '" + maybeName + "' is already declared") - var kind = this.type.isLoop ? "loop" : this.type === tt._switch ? "switch" : null - for (var i$1 = this.labels.length - 1; i$1 >= 0; i$1--) { - var label = this$1.labels[i$1] - if (label.statementStart == node.start) { - label.statementStart = this$1.start - label.kind = kind - } else break - } - this.labels.push({name: maybeName, kind: kind, statementStart: this.start}) - node.body = this.parseStatement(true) + for (var i$1 = 0, list = this$1.labels; i$1 < list.length; i$1 += 1) + { + var label = list[i$1]; + + if (label.name === maybeName) + { this$1.raise(expr.start, "Label '" + maybeName + "' is already declared"); + } } + var kind = this.type.isLoop ? "loop" : this.type === types._switch ? "switch" : null; + for (var i = this.labels.length - 1; i >= 0; i--) { + var label$1 = this$1.labels[i]; + if (label$1.statementStart == node.start) { + label$1.statementStart = this$1.start; + label$1.kind = kind; + } else { break } + } + this.labels.push({name: maybeName, kind: kind, statementStart: this.start}); + node.body = this.parseStatement(true); if (node.body.type == "ClassDeclaration" || node.body.type == "VariableDeclaration" && node.body.kind != "var" || node.body.type == "FunctionDeclaration" && (this.strict || node.body.generator)) - this.raiseRecoverable(node.body.start, "Invalid labeled declaration") - this.labels.pop() - node.label = expr + { this.raiseRecoverable(node.body.start, "Invalid labeled declaration"); } + this.labels.pop(); + node.label = expr; return this.finishNode(node, "LabeledStatement") -} +}; pp$1.parseExpressionStatement = function(node, expr) { - node.expression = expr - this.semicolon() + node.expression = expr; + this.semicolon(); return this.finishNode(node, "ExpressionStatement") -} +}; // Parse a semicolon-enclosed block of statements, handling `"use // strict"` declarations when `allowStrict` is true (used for @@ -1048,129 +1060,129 @@ pp$1.parseBlock = function(createNewLexicalScope) { var this$1 = this; if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true; - var node = this.startNode() - node.body = [] - this.expect(tt.braceL) + var node = this.startNode(); + node.body = []; + this.expect(types.braceL); if (createNewLexicalScope) { - this.enterLexicalScope() + this.enterLexicalScope(); } - while (!this.eat(tt.braceR)) { - var stmt = this$1.parseStatement(true) - node.body.push(stmt) + while (!this.eat(types.braceR)) { + var stmt = this$1.parseStatement(true); + node.body.push(stmt); } if (createNewLexicalScope) { - this.exitLexicalScope() + this.exitLexicalScope(); } return this.finishNode(node, "BlockStatement") -} +}; // Parse a regular `for` loop. The disambiguation code in // `parseStatement` will already have parsed the init statement or // expression. pp$1.parseFor = function(node, init) { - node.init = init - this.expect(tt.semi) - node.test = this.type === tt.semi ? null : this.parseExpression() - this.expect(tt.semi) - node.update = this.type === tt.parenR ? null : this.parseExpression() - this.expect(tt.parenR) - this.exitLexicalScope() - node.body = this.parseStatement(false) - this.labels.pop() + node.init = init; + this.expect(types.semi); + node.test = this.type === types.semi ? null : this.parseExpression(); + this.expect(types.semi); + node.update = this.type === types.parenR ? null : this.parseExpression(); + this.expect(types.parenR); + this.exitLexicalScope(); + node.body = this.parseStatement(false); + this.labels.pop(); return this.finishNode(node, "ForStatement") -} +}; // Parse a `for`/`in` and `for`/`of` loop, which are almost // same from parser's perspective. pp$1.parseForIn = function(node, init) { - var type = this.type === tt._in ? "ForInStatement" : "ForOfStatement" - this.next() - node.left = init - node.right = this.parseExpression() - this.expect(tt.parenR) - this.exitLexicalScope() - node.body = this.parseStatement(false) - this.labels.pop() + var type = this.type === types._in ? "ForInStatement" : "ForOfStatement"; + this.next(); + node.left = init; + node.right = this.parseExpression(); + this.expect(types.parenR); + this.exitLexicalScope(); + node.body = this.parseStatement(false); + this.labels.pop(); return this.finishNode(node, type) -} +}; // Parse a list of variable declarations. pp$1.parseVar = function(node, isFor, kind) { var this$1 = this; - node.declarations = [] - node.kind = kind + node.declarations = []; + node.kind = kind; for (;;) { - var decl = this$1.startNode() - this$1.parseVarId(decl, kind) - if (this$1.eat(tt.eq)) { - decl.init = this$1.parseMaybeAssign(isFor) - } else if (kind === "const" && !(this$1.type === tt._in || (this$1.options.ecmaVersion >= 6 && this$1.isContextual("of")))) { - this$1.unexpected() - } else if (decl.id.type != "Identifier" && !(isFor && (this$1.type === tt._in || this$1.isContextual("of")))) { - this$1.raise(this$1.lastTokEnd, "Complex binding patterns require an initialization value") + var decl = this$1.startNode(); + this$1.parseVarId(decl, kind); + if (this$1.eat(types.eq)) { + decl.init = this$1.parseMaybeAssign(isFor); + } else if (kind === "const" && !(this$1.type === types._in || (this$1.options.ecmaVersion >= 6 && this$1.isContextual("of")))) { + this$1.unexpected(); + } else if (decl.id.type != "Identifier" && !(isFor && (this$1.type === types._in || this$1.isContextual("of")))) { + this$1.raise(this$1.lastTokEnd, "Complex binding patterns require an initialization value"); } else { - decl.init = null + decl.init = null; } - node.declarations.push(this$1.finishNode(decl, "VariableDeclarator")) - if (!this$1.eat(tt.comma)) break + node.declarations.push(this$1.finishNode(decl, "VariableDeclarator")); + if (!this$1.eat(types.comma)) { break } } return node -} +}; pp$1.parseVarId = function(decl, kind) { - decl.id = this.parseBindingAtom(kind) - this.checkLVal(decl.id, kind, false) -} + decl.id = this.parseBindingAtom(kind); + this.checkLVal(decl.id, kind, false); +}; // Parse a function declaration or literal (depending on the // `isStatement` parameter). pp$1.parseFunction = function(node, isStatement, allowExpressionBody, isAsync) { - this.initFunction(node) + this.initFunction(node); if (this.options.ecmaVersion >= 6 && !isAsync) - node.generator = this.eat(tt.star) + { node.generator = this.eat(types.star); } if (this.options.ecmaVersion >= 8) - node.async = !!isAsync + { node.async = !!isAsync; } if (isStatement) { - node.id = isStatement === "nullableID" && this.type != tt.name ? null : this.parseIdent() + node.id = isStatement === "nullableID" && this.type != types.name ? null : this.parseIdent(); if (node.id) { - this.checkLVal(node.id, "var") + this.checkLVal(node.id, "var"); } } var oldInGen = this.inGenerator, oldInAsync = this.inAsync, - oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction - this.inGenerator = node.generator - this.inAsync = node.async - this.yieldPos = 0 - this.awaitPos = 0 - this.inFunction = true - this.enterFunctionScope() + oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction; + this.inGenerator = node.generator; + this.inAsync = node.async; + this.yieldPos = 0; + this.awaitPos = 0; + this.inFunction = true; + this.enterFunctionScope(); if (!isStatement) - node.id = this.type == tt.name ? this.parseIdent() : null + { node.id = this.type == types.name ? this.parseIdent() : null; } - this.parseFunctionParams(node) - this.parseFunctionBody(node, allowExpressionBody) + this.parseFunctionParams(node); + this.parseFunctionBody(node, allowExpressionBody); - this.inGenerator = oldInGen - this.inAsync = oldInAsync - this.yieldPos = oldYieldPos - this.awaitPos = oldAwaitPos - this.inFunction = oldInFunc + this.inGenerator = oldInGen; + this.inAsync = oldInAsync; + this.yieldPos = oldYieldPos; + this.awaitPos = oldAwaitPos; + this.inFunction = oldInFunc; return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression") -} +}; pp$1.parseFunctionParams = function(node) { - this.expect(tt.parenL) - node.params = this.parseBindingList(tt.parenR, false, this.options.ecmaVersion >= 8, true) - this.checkYieldAwaitInDefaultParams() -} + this.expect(types.parenL); + node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8); + this.checkYieldAwaitInDefaultParams(); +}; // Parse a class declaration or literal (depending on the // `isStatement` parameter). @@ -1178,177 +1190,186 @@ pp$1.parseFunctionParams = function(node) { pp$1.parseClass = function(node, isStatement) { var this$1 = this; - this.next() - - this.parseClassId(node, isStatement) - this.parseClassSuper(node) - var classBody = this.startNode() - var hadConstructor = false - classBody.body = [] - this.expect(tt.braceL) - while (!this.eat(tt.braceR)) { - if (this$1.eat(tt.semi)) continue - var method = this$1.startNode() - var isGenerator = this$1.eat(tt.star) - var isAsync = false - var isMaybeStatic = this$1.type === tt.name && this$1.value === "static" - this$1.parsePropertyName(method) - method.static = isMaybeStatic && this$1.type !== tt.parenL + this.next(); + + this.parseClassId(node, isStatement); + this.parseClassSuper(node); + var classBody = this.startNode(); + var hadConstructor = false; + classBody.body = []; + this.expect(types.braceL); + while (!this.eat(types.braceR)) { + if (this$1.eat(types.semi)) { continue } + var method = this$1.startNode(); + var isGenerator = this$1.eat(types.star); + var isAsync = false; + var isMaybeStatic = this$1.type === types.name && this$1.value === "static"; + this$1.parsePropertyName(method); + method.static = isMaybeStatic && this$1.type !== types.parenL; if (method.static) { - if (isGenerator) this$1.unexpected() - isGenerator = this$1.eat(tt.star) - this$1.parsePropertyName(method) + if (isGenerator) { this$1.unexpected(); } + isGenerator = this$1.eat(types.star); + this$1.parsePropertyName(method); } if (this$1.options.ecmaVersion >= 8 && !isGenerator && !method.computed && - method.key.type === "Identifier" && method.key.name === "async" && this$1.type !== tt.parenL && + method.key.type === "Identifier" && method.key.name === "async" && this$1.type !== types.parenL && !this$1.canInsertSemicolon()) { - isAsync = true - this$1.parsePropertyName(method) + isAsync = true; + this$1.parsePropertyName(method); } - method.kind = "method" - var isGetSet = false + method.kind = "method"; + var isGetSet = false; if (!method.computed) { var key = method.key; - if (!isGenerator && !isAsync && key.type === "Identifier" && this$1.type !== tt.parenL && (key.name === "get" || key.name === "set")) { - isGetSet = true - method.kind = key.name - key = this$1.parsePropertyName(method) + if (!isGenerator && !isAsync && key.type === "Identifier" && this$1.type !== types.parenL && (key.name === "get" || key.name === "set")) { + isGetSet = true; + method.kind = key.name; + key = this$1.parsePropertyName(method); } if (!method.static && (key.type === "Identifier" && key.name === "constructor" || key.type === "Literal" && key.value === "constructor")) { - if (hadConstructor) this$1.raise(key.start, "Duplicate constructor in the same class") - if (isGetSet) this$1.raise(key.start, "Constructor can't have get/set modifier") - if (isGenerator) this$1.raise(key.start, "Constructor can't be a generator") - if (isAsync) this$1.raise(key.start, "Constructor can't be an async method") - method.kind = "constructor" - hadConstructor = true + if (hadConstructor) { this$1.raise(key.start, "Duplicate constructor in the same class"); } + if (isGetSet) { this$1.raise(key.start, "Constructor can't have get/set modifier"); } + if (isGenerator) { this$1.raise(key.start, "Constructor can't be a generator"); } + if (isAsync) { this$1.raise(key.start, "Constructor can't be an async method"); } + method.kind = "constructor"; + hadConstructor = true; } } - this$1.parseClassMethod(classBody, method, isGenerator, isAsync) + this$1.parseClassMethod(classBody, method, isGenerator, isAsync); if (isGetSet) { - var paramCount = method.kind === "get" ? 0 : 1 + var paramCount = method.kind === "get" ? 0 : 1; if (method.value.params.length !== paramCount) { - var start = method.value.start + var start = method.value.start; if (method.kind === "get") - this$1.raiseRecoverable(start, "getter should have no params") + { this$1.raiseRecoverable(start, "getter should have no params"); } else - this$1.raiseRecoverable(start, "setter should have exactly one param") + { this$1.raiseRecoverable(start, "setter should have exactly one param"); } } else { if (method.kind === "set" && method.value.params[0].type === "RestElement") - this$1.raiseRecoverable(method.value.params[0].start, "Setter cannot use rest params") + { this$1.raiseRecoverable(method.value.params[0].start, "Setter cannot use rest params"); } } } } - node.body = this.finishNode(classBody, "ClassBody") + node.body = this.finishNode(classBody, "ClassBody"); return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression") -} +}; pp$1.parseClassMethod = function(classBody, method, isGenerator, isAsync) { - method.value = this.parseMethod(isGenerator, isAsync) - classBody.body.push(this.finishNode(method, "MethodDefinition")) -} + method.value = this.parseMethod(isGenerator, isAsync); + classBody.body.push(this.finishNode(method, "MethodDefinition")); +}; pp$1.parseClassId = function(node, isStatement) { - node.id = this.type === tt.name ? this.parseIdent() : isStatement === true ? this.unexpected() : null -} + node.id = this.type === types.name ? this.parseIdent() : isStatement === true ? this.unexpected() : null; +}; pp$1.parseClassSuper = function(node) { - node.superClass = this.eat(tt._extends) ? this.parseExprSubscripts() : null -} + node.superClass = this.eat(types._extends) ? this.parseExprSubscripts() : null; +}; // Parses module export declaration. pp$1.parseExport = function(node, exports) { var this$1 = this; - this.next() + this.next(); // export * from '...' - if (this.eat(tt.star)) { - this.expectContextual("from") - node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected() - this.semicolon() + if (this.eat(types.star)) { + this.expectContextual("from"); + node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected(); + this.semicolon(); return this.finishNode(node, "ExportAllDeclaration") } - if (this.eat(tt._default)) { // export default ... - this.checkExport(exports, "default", this.lastTokStart) - var isAsync - if (this.type === tt._function || (isAsync = this.isAsyncFunction())) { - var fNode = this.startNode() - this.next() - if (isAsync) this.next() - node.declaration = this.parseFunction(fNode, "nullableID", false, isAsync) - } else if (this.type === tt._class) { - var cNode = this.startNode() - node.declaration = this.parseClass(cNode, "nullableID") + if (this.eat(types._default)) { // export default ... + this.checkExport(exports, "default", this.lastTokStart); + var isAsync; + if (this.type === types._function || (isAsync = this.isAsyncFunction())) { + var fNode = this.startNode(); + this.next(); + if (isAsync) { this.next(); } + node.declaration = this.parseFunction(fNode, "nullableID", false, isAsync); + } else if (this.type === types._class) { + var cNode = this.startNode(); + node.declaration = this.parseClass(cNode, "nullableID"); } else { - node.declaration = this.parseMaybeAssign() - this.semicolon() + node.declaration = this.parseMaybeAssign(); + this.semicolon(); } return this.finishNode(node, "ExportDefaultDeclaration") } // export var|const|let|function|class ... if (this.shouldParseExportStatement()) { - node.declaration = this.parseStatement(true) + node.declaration = this.parseStatement(true); if (node.declaration.type === "VariableDeclaration") - this.checkVariableExport(exports, node.declaration.declarations) + { this.checkVariableExport(exports, node.declaration.declarations); } else - this.checkExport(exports, node.declaration.id.name, node.declaration.id.start) - node.specifiers = [] - node.source = null + { this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); } + node.specifiers = []; + node.source = null; } else { // export { x, y as z } [from '...'] - node.declaration = null - node.specifiers = this.parseExportSpecifiers(exports) + node.declaration = null; + node.specifiers = this.parseExportSpecifiers(exports); if (this.eatContextual("from")) { - node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected() + node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected(); } else { // check for keywords used as local names - for (var i = 0; i < node.specifiers.length; i++) { - if (this$1.keywords.test(node.specifiers[i].local.name) || this$1.reservedWords.test(node.specifiers[i].local.name)) { - this$1.unexpected(node.specifiers[i].local.start) - } + for (var i = 0, list = node.specifiers; i < list.length; i += 1) { + var spec = list[i]; + + this$1.checkUnreserved(spec.local); } - node.source = null + node.source = null; } - this.semicolon() + this.semicolon(); } return this.finishNode(node, "ExportNamedDeclaration") -} +}; pp$1.checkExport = function(exports, name, pos) { - if (!exports) return + if (!exports) { return } if (has(exports, name)) - this.raiseRecoverable(pos, "Duplicate export '" + name + "'") - exports[name] = true -} + { this.raiseRecoverable(pos, "Duplicate export '" + name + "'"); } + exports[name] = true; +}; pp$1.checkPatternExport = function(exports, pat) { var this$1 = this; - var type = pat.type + var type = pat.type; if (type == "Identifier") - this.checkExport(exports, pat.name, pat.start) + { this.checkExport(exports, pat.name, pat.start); } else if (type == "ObjectPattern") - for (var i = 0; i < pat.properties.length; ++i) - this$1.checkPatternExport(exports, pat.properties[i].value) + { for (var i = 0, list = pat.properties; i < list.length; i += 1) + { + var prop = list[i]; + + this$1.checkPatternExport(exports, prop.value); + } } else if (type == "ArrayPattern") - for (var i$1 = 0; i$1 < pat.elements.length; ++i$1) { - var elt = pat.elements[i$1] - if (elt) this$1.checkPatternExport(exports, elt) - } + { for (var i$1 = 0, list$1 = pat.elements; i$1 < list$1.length; i$1 += 1) { + var elt = list$1[i$1]; + + if (elt) { this$1.checkPatternExport(exports, elt); } + } } else if (type == "AssignmentPattern") - this.checkPatternExport(exports, pat.left) + { this.checkPatternExport(exports, pat.left); } else if (type == "ParenthesizedExpression") - this.checkPatternExport(exports, pat.expression) -} + { this.checkPatternExport(exports, pat.expression); } +}; pp$1.checkVariableExport = function(exports, decls) { var this$1 = this; - if (!exports) return - for (var i = 0; i < decls.length; i++) - this$1.checkPatternExport(exports, decls[i].id) -} + if (!exports) { return } + for (var i = 0, list = decls; i < list.length; i += 1) + { + var decl = list[i]; + + this$1.checkPatternExport(exports, decl.id); + } +}; pp$1.shouldParseExportStatement = function() { return this.type.keyword === "var" || @@ -1357,94 +1378,93 @@ pp$1.shouldParseExportStatement = function() { this.type.keyword === "function" || this.isLet() || this.isAsyncFunction() -} +}; // Parses a comma-separated list of module exports. pp$1.parseExportSpecifiers = function(exports) { var this$1 = this; - var nodes = [], first = true + var nodes = [], first = true; // export { x, y as z } [from '...'] - this.expect(tt.braceL) - while (!this.eat(tt.braceR)) { + this.expect(types.braceL); + while (!this.eat(types.braceR)) { if (!first) { - this$1.expect(tt.comma) - if (this$1.afterTrailingComma(tt.braceR)) break - } else first = false + this$1.expect(types.comma); + if (this$1.afterTrailingComma(types.braceR)) { break } + } else { first = false; } - var node = this$1.startNode() - node.local = this$1.parseIdent(true) - node.exported = this$1.eatContextual("as") ? this$1.parseIdent(true) : node.local - this$1.checkExport(exports, node.exported.name, node.exported.start) - nodes.push(this$1.finishNode(node, "ExportSpecifier")) + var node = this$1.startNode(); + node.local = this$1.parseIdent(true); + node.exported = this$1.eatContextual("as") ? this$1.parseIdent(true) : node.local; + this$1.checkExport(exports, node.exported.name, node.exported.start); + nodes.push(this$1.finishNode(node, "ExportSpecifier")); } return nodes -} +}; // Parses import declaration. pp$1.parseImport = function(node) { - this.next() + this.next(); // import '...' - if (this.type === tt.string) { - node.specifiers = empty - node.source = this.parseExprAtom() + if (this.type === types.string) { + node.specifiers = empty; + node.source = this.parseExprAtom(); } else { - node.specifiers = this.parseImportSpecifiers() - this.expectContextual("from") - node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected() + node.specifiers = this.parseImportSpecifiers(); + this.expectContextual("from"); + node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected(); } - this.semicolon() + this.semicolon(); return this.finishNode(node, "ImportDeclaration") -} +}; // Parses a comma-separated list of module imports. pp$1.parseImportSpecifiers = function() { var this$1 = this; - var nodes = [], first = true - if (this.type === tt.name) { + var nodes = [], first = true; + if (this.type === types.name) { // import defaultObj, { x, y as z } from '...' - var node = this.startNode() - node.local = this.parseIdent() - this.checkLVal(node.local, "let") - nodes.push(this.finishNode(node, "ImportDefaultSpecifier")) - if (!this.eat(tt.comma)) return nodes - } - if (this.type === tt.star) { - var node$1 = this.startNode() - this.next() - this.expectContextual("as") - node$1.local = this.parseIdent() - this.checkLVal(node$1.local, "let") - nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier")) + var node = this.startNode(); + node.local = this.parseIdent(); + this.checkLVal(node.local, "let"); + nodes.push(this.finishNode(node, "ImportDefaultSpecifier")); + if (!this.eat(types.comma)) { return nodes } + } + if (this.type === types.star) { + var node$1 = this.startNode(); + this.next(); + this.expectContextual("as"); + node$1.local = this.parseIdent(); + this.checkLVal(node$1.local, "let"); + nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier")); return nodes } - this.expect(tt.braceL) - while (!this.eat(tt.braceR)) { + this.expect(types.braceL); + while (!this.eat(types.braceR)) { if (!first) { - this$1.expect(tt.comma) - if (this$1.afterTrailingComma(tt.braceR)) break - } else first = false + this$1.expect(types.comma); + if (this$1.afterTrailingComma(types.braceR)) { break } + } else { first = false; } - var node$2 = this$1.startNode() - node$2.imported = this$1.parseIdent(true) + var node$2 = this$1.startNode(); + node$2.imported = this$1.parseIdent(true); if (this$1.eatContextual("as")) { - node$2.local = this$1.parseIdent() + node$2.local = this$1.parseIdent(); } else { - node$2.local = node$2.imported - if (this$1.isKeyword(node$2.local.name)) this$1.unexpected(node$2.local.start) - if (this$1.reservedWordsStrict.test(node$2.local.name)) this$1.raiseRecoverable(node$2.local.start, "The keyword '" + node$2.local.name + "' is reserved") + this$1.checkUnreserved(node$2.imported); + node$2.local = node$2.imported; } - this$1.checkLVal(node$2.local, "let") - nodes.push(this$1.finishNode(node$2, "ImportSpecifier")) + this$1.checkLVal(node$2.local, "let"); + nodes.push(this$1.finishNode(node$2, "ImportSpecifier")); } return nodes -} +}; -var pp$2 = Parser.prototype +var pp$2 = Parser.prototype; // Convert existing expression atom to assignable pattern // if possible. @@ -1456,7 +1476,7 @@ pp$2.toAssignable = function(node, isBinding) { switch (node.type) { case "Identifier": if (this.inAsync && node.name === "await") - this.raise(node.start, "Can not use 'await' as identifier inside an async function") + { this.raise(node.start, "Can not use 'await' as identifier inside an async function"); } break case "ObjectPattern": @@ -1464,27 +1484,28 @@ pp$2.toAssignable = function(node, isBinding) { break case "ObjectExpression": - node.type = "ObjectPattern" - for (var i = 0; i < node.properties.length; i++) { - var prop = node.properties[i] - if (prop.kind !== "init") this$1.raise(prop.key.start, "Object pattern can't contain getter or setter") - this$1.toAssignable(prop.value, isBinding) + node.type = "ObjectPattern"; + for (var i = 0, list = node.properties; i < list.length; i += 1) { + var prop = list[i]; + + if (prop.kind !== "init") { this$1.raise(prop.key.start, "Object pattern can't contain getter or setter"); } + this$1.toAssignable(prop.value, isBinding); } break case "ArrayExpression": - node.type = "ArrayPattern" - this.toAssignableList(node.elements, isBinding) + node.type = "ArrayPattern"; + this.toAssignableList(node.elements, isBinding); break case "AssignmentExpression": if (node.operator === "=") { - node.type = "AssignmentPattern" - delete node.operator - this.toAssignable(node.left, isBinding) + node.type = "AssignmentPattern"; + delete node.operator; + this.toAssignable(node.left, isBinding); // falls through to AssignmentPattern } else { - this.raise(node.left.end, "Only '=' operator can be used for specifying default value.") + this.raise(node.left.end, "Only '=' operator can be used for specifying default value."); break } @@ -1492,131 +1513,131 @@ pp$2.toAssignable = function(node, isBinding) { break case "ParenthesizedExpression": - node.expression = this.toAssignable(node.expression, isBinding) + this.toAssignable(node.expression, isBinding); break case "MemberExpression": - if (!isBinding) break + if (!isBinding) { break } default: - this.raise(node.start, "Assigning to rvalue") + this.raise(node.start, "Assigning to rvalue"); } } return node -} +}; // Convert list of expression atoms to binding list. pp$2.toAssignableList = function(exprList, isBinding) { var this$1 = this; - var end = exprList.length + var end = exprList.length; if (end) { - var last = exprList[end - 1] + var last = exprList[end - 1]; if (last && last.type == "RestElement") { - --end + --end; } else if (last && last.type == "SpreadElement") { - last.type = "RestElement" - var arg = last.argument - this.toAssignable(arg, isBinding) - if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern") - this.unexpected(arg.start) - --end + last.type = "RestElement"; + var arg = last.argument; + this.toAssignable(arg, isBinding); + --end; } - if (isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier") - this.unexpected(last.argument.start) + if (this.options.ecmaVersion === 6 && isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier") + { this.unexpected(last.argument.start); } } for (var i = 0; i < end; i++) { - var elt = exprList[i] - if (elt) this$1.toAssignable(elt, isBinding) + var elt = exprList[i]; + if (elt) { this$1.toAssignable(elt, isBinding); } } return exprList -} +}; // Parses spread element. pp$2.parseSpread = function(refDestructuringErrors) { - var node = this.startNode() - this.next() - node.argument = this.parseMaybeAssign(false, refDestructuringErrors) + var node = this.startNode(); + this.next(); + node.argument = this.parseMaybeAssign(false, refDestructuringErrors); return this.finishNode(node, "SpreadElement") -} +}; -pp$2.parseRest = function(allowNonIdent) { - var node = this.startNode() - this.next() +pp$2.parseRestBinding = function() { + var node = this.startNode(); + this.next(); // RestElement inside of a function parameter must be an identifier - if (allowNonIdent) node.argument = this.type === tt.name ? this.parseIdent() : this.unexpected() - else node.argument = this.type === tt.name || this.type === tt.bracketL ? this.parseBindingAtom() : this.unexpected() + if (this.options.ecmaVersion === 6 && this.type !== types.name) + { this.unexpected(); } + + node.argument = this.parseBindingAtom(); return this.finishNode(node, "RestElement") -} +}; // Parses lvalue (assignable) atom. pp$2.parseBindingAtom = function() { - if (this.options.ecmaVersion < 6) return this.parseIdent() + if (this.options.ecmaVersion < 6) { return this.parseIdent() } switch (this.type) { - case tt.name: + case types.name: return this.parseIdent() - case tt.bracketL: - var node = this.startNode() - this.next() - node.elements = this.parseBindingList(tt.bracketR, true, true) + case types.bracketL: + var node = this.startNode(); + this.next(); + node.elements = this.parseBindingList(types.bracketR, true, true); return this.finishNode(node, "ArrayPattern") - case tt.braceL: + case types.braceL: return this.parseObj(true) default: - this.unexpected() + this.unexpected(); } -} +}; -pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma, allowNonIdent) { +pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma) { var this$1 = this; - var elts = [], first = true + var elts = [], first = true; while (!this.eat(close)) { - if (first) first = false - else this$1.expect(tt.comma) - if (allowEmpty && this$1.type === tt.comma) { - elts.push(null) + if (first) { first = false; } + else { this$1.expect(types.comma); } + if (allowEmpty && this$1.type === types.comma) { + elts.push(null); } else if (allowTrailingComma && this$1.afterTrailingComma(close)) { break - } else if (this$1.type === tt.ellipsis) { - var rest = this$1.parseRest(allowNonIdent) - this$1.parseBindingListItem(rest) - elts.push(rest) - if (this$1.type === tt.comma) this$1.raise(this$1.start, "Comma is not permitted after the rest element") - this$1.expect(close) + } else if (this$1.type === types.ellipsis) { + var rest = this$1.parseRestBinding(); + this$1.parseBindingListItem(rest); + elts.push(rest); + if (this$1.type === types.comma) { this$1.raise(this$1.start, "Comma is not permitted after the rest element"); } + this$1.expect(close); break } else { - var elem = this$1.parseMaybeDefault(this$1.start, this$1.startLoc) - this$1.parseBindingListItem(elem) - elts.push(elem) + var elem = this$1.parseMaybeDefault(this$1.start, this$1.startLoc); + this$1.parseBindingListItem(elem); + elts.push(elem); } } return elts -} +}; pp$2.parseBindingListItem = function(param) { return param -} +}; // Parses assignment pattern around given atom if possible. pp$2.parseMaybeDefault = function(startPos, startLoc, left) { - left = left || this.parseBindingAtom() - if (this.options.ecmaVersion < 6 || !this.eat(tt.eq)) return left - var node = this.startNodeAt(startPos, startLoc) - node.left = left - node.right = this.parseMaybeAssign() + left = left || this.parseBindingAtom(); + if (this.options.ecmaVersion < 6 || !this.eat(types.eq)) { return left } + var node = this.startNodeAt(startPos, startLoc); + node.left = left; + node.right = this.parseMaybeAssign(); return this.finishNode(node, "AssignmentPattern") -} +}; // Verify that a node is an lval — something that can be assigned // to. @@ -1631,59 +1652,64 @@ pp$2.checkLVal = function(expr, bindingType, checkClashes) { switch (expr.type) { case "Identifier": if (this.strict && this.reservedWordsStrictBind.test(expr.name)) - this.raiseRecoverable(expr.start, (bindingType ? "Binding " : "Assigning to ") + expr.name + " in strict mode") + { this.raiseRecoverable(expr.start, (bindingType ? "Binding " : "Assigning to ") + expr.name + " in strict mode"); } if (checkClashes) { if (has(checkClashes, expr.name)) - this.raiseRecoverable(expr.start, "Argument name clash") - checkClashes[expr.name] = true + { this.raiseRecoverable(expr.start, "Argument name clash"); } + checkClashes[expr.name] = true; } if (bindingType && bindingType !== "none") { if ( bindingType === "var" && !this.canDeclareVarName(expr.name) || bindingType !== "var" && !this.canDeclareLexicalName(expr.name) ) { - this.raiseRecoverable(expr.start, ("Identifier '" + (expr.name) + "' has already been declared")) + this.raiseRecoverable(expr.start, ("Identifier '" + (expr.name) + "' has already been declared")); } if (bindingType === "var") { - this.declareVarName(expr.name) + this.declareVarName(expr.name); } else { - this.declareLexicalName(expr.name) + this.declareLexicalName(expr.name); } } break case "MemberExpression": - if (bindingType) this.raiseRecoverable(expr.start, (bindingType ? "Binding" : "Assigning to") + " member expression") + if (bindingType) { this.raiseRecoverable(expr.start, (bindingType ? "Binding" : "Assigning to") + " member expression"); } break case "ObjectPattern": - for (var i = 0; i < expr.properties.length; i++) - this$1.checkLVal(expr.properties[i].value, bindingType, checkClashes) + for (var i = 0, list = expr.properties; i < list.length; i += 1) + { + var prop = list[i]; + + this$1.checkLVal(prop.value, bindingType, checkClashes); + } break case "ArrayPattern": - for (var i$1 = 0; i$1 < expr.elements.length; i$1++) { - var elem = expr.elements[i$1] - if (elem) this$1.checkLVal(elem, bindingType, checkClashes) + for (var i$1 = 0, list$1 = expr.elements; i$1 < list$1.length; i$1 += 1) { + var elem = list$1[i$1]; + + if (elem) { this$1.checkLVal(elem, bindingType, checkClashes); } } break case "AssignmentPattern": - this.checkLVal(expr.left, bindingType, checkClashes) + this.checkLVal(expr.left, bindingType, checkClashes); break case "RestElement": - this.checkLVal(expr.argument, bindingType, checkClashes) + this.checkLVal(expr.argument, bindingType, checkClashes); break case "ParenthesizedExpression": - this.checkLVal(expr.expression, bindingType, checkClashes) + this.checkLVal(expr.expression, bindingType, checkClashes); break default: - this.raise(expr.start, (bindingType ? "Binding" : "Assigning to") + " rvalue") + this.raise(expr.start, (bindingType ? "Binding" : "Assigning to") + " rvalue"); } -} +}; // A recursive descent parser operates by defining functions for all // syntactic elements, and recursively calling those, each function @@ -1703,7 +1729,7 @@ pp$2.checkLVal = function(expr, bindingType, checkClashes) { // // [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser -var pp$3 = Parser.prototype +var pp$3 = Parser.prototype; // Check if property name clashes with already added. // Object/class getters and setters are not allowed to clash — @@ -1712,9 +1738,9 @@ var pp$3 = Parser.prototype pp$3.checkPropClash = function(prop, propHash) { if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand)) - return + { return } var key = prop.key; - var name + var name; switch (key.type) { case "Identifier": name = key.name; break case "Literal": name = String(key.value); break @@ -1723,31 +1749,31 @@ pp$3.checkPropClash = function(prop, propHash) { var kind = prop.kind; if (this.options.ecmaVersion >= 6) { if (name === "__proto__" && kind === "init") { - if (propHash.proto) this.raiseRecoverable(key.start, "Redefinition of __proto__ property") - propHash.proto = true + if (propHash.proto) { this.raiseRecoverable(key.start, "Redefinition of __proto__ property"); } + propHash.proto = true; } return } - name = "$" + name - var other = propHash[name] + name = "$" + name; + var other = propHash[name]; if (other) { - var redefinition + var redefinition; if (kind === "init") { - redefinition = this.strict && other.init || other.get || other.set + redefinition = this.strict && other.init || other.get || other.set; } else { - redefinition = other.init || other[kind] + redefinition = other.init || other[kind]; } if (redefinition) - this.raiseRecoverable(key.start, "Redefinition of property") + { this.raiseRecoverable(key.start, "Redefinition of property"); } } else { other = propHash[name] = { init: false, get: false, set: false - } + }; } - other[kind] = true -} + other[kind] = true; +}; // ### Expression parsing @@ -1767,82 +1793,82 @@ pp$3.checkPropClash = function(prop, propHash) { pp$3.parseExpression = function(noIn, refDestructuringErrors) { var this$1 = this; - var startPos = this.start, startLoc = this.startLoc - var expr = this.parseMaybeAssign(noIn, refDestructuringErrors) - if (this.type === tt.comma) { - var node = this.startNodeAt(startPos, startLoc) - node.expressions = [expr] - while (this.eat(tt.comma)) node.expressions.push(this$1.parseMaybeAssign(noIn, refDestructuringErrors)) + var startPos = this.start, startLoc = this.startLoc; + var expr = this.parseMaybeAssign(noIn, refDestructuringErrors); + if (this.type === types.comma) { + var node = this.startNodeAt(startPos, startLoc); + node.expressions = [expr]; + while (this.eat(types.comma)) { node.expressions.push(this$1.parseMaybeAssign(noIn, refDestructuringErrors)); } return this.finishNode(node, "SequenceExpression") } return expr -} +}; // Parse an assignment expression. This includes applications of // operators like `+=`. pp$3.parseMaybeAssign = function(noIn, refDestructuringErrors, afterLeftParse) { - if (this.inGenerator && this.isContextual("yield")) return this.parseYield() + if (this.inGenerator && this.isContextual("yield")) { return this.parseYield() } - var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1 + var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1; if (refDestructuringErrors) { - oldParenAssign = refDestructuringErrors.parenthesizedAssign - oldTrailingComma = refDestructuringErrors.trailingComma - refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1 + oldParenAssign = refDestructuringErrors.parenthesizedAssign; + oldTrailingComma = refDestructuringErrors.trailingComma; + refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1; } else { - refDestructuringErrors = new DestructuringErrors - ownDestructuringErrors = true + refDestructuringErrors = new DestructuringErrors; + ownDestructuringErrors = true; } - var startPos = this.start, startLoc = this.startLoc - if (this.type == tt.parenL || this.type == tt.name) - this.potentialArrowAt = this.start - var left = this.parseMaybeConditional(noIn, refDestructuringErrors) - if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc) + var startPos = this.start, startLoc = this.startLoc; + if (this.type == types.parenL || this.type == types.name) + { this.potentialArrowAt = this.start; } + var left = this.parseMaybeConditional(noIn, refDestructuringErrors); + if (afterLeftParse) { left = afterLeftParse.call(this, left, startPos, startLoc); } if (this.type.isAssign) { - this.checkPatternErrors(refDestructuringErrors, true) - if (!ownDestructuringErrors) DestructuringErrors.call(refDestructuringErrors) - var node = this.startNodeAt(startPos, startLoc) - node.operator = this.value - node.left = this.type === tt.eq ? this.toAssignable(left) : left - refDestructuringErrors.shorthandAssign = -1 // reset because shorthand default was used correctly - this.checkLVal(left) - this.next() - node.right = this.parseMaybeAssign(noIn) + this.checkPatternErrors(refDestructuringErrors, true); + if (!ownDestructuringErrors) { DestructuringErrors.call(refDestructuringErrors); } + var node = this.startNodeAt(startPos, startLoc); + node.operator = this.value; + node.left = this.type === types.eq ? this.toAssignable(left) : left; + refDestructuringErrors.shorthandAssign = -1; // reset because shorthand default was used correctly + this.checkLVal(left); + this.next(); + node.right = this.parseMaybeAssign(noIn); return this.finishNode(node, "AssignmentExpression") } else { - if (ownDestructuringErrors) this.checkExpressionErrors(refDestructuringErrors, true) + if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); } } - if (oldParenAssign > -1) refDestructuringErrors.parenthesizedAssign = oldParenAssign - if (oldTrailingComma > -1) refDestructuringErrors.trailingComma = oldTrailingComma + if (oldParenAssign > -1) { refDestructuringErrors.parenthesizedAssign = oldParenAssign; } + if (oldTrailingComma > -1) { refDestructuringErrors.trailingComma = oldTrailingComma; } return left -} +}; // Parse a ternary conditional (`?:`) operator. pp$3.parseMaybeConditional = function(noIn, refDestructuringErrors) { - var startPos = this.start, startLoc = this.startLoc - var expr = this.parseExprOps(noIn, refDestructuringErrors) - if (this.checkExpressionErrors(refDestructuringErrors)) return expr - if (this.eat(tt.question)) { - var node = this.startNodeAt(startPos, startLoc) - node.test = expr - node.consequent = this.parseMaybeAssign() - this.expect(tt.colon) - node.alternate = this.parseMaybeAssign(noIn) + var startPos = this.start, startLoc = this.startLoc; + var expr = this.parseExprOps(noIn, refDestructuringErrors); + if (this.checkExpressionErrors(refDestructuringErrors)) { return expr } + if (this.eat(types.question)) { + var node = this.startNodeAt(startPos, startLoc); + node.test = expr; + node.consequent = this.parseMaybeAssign(); + this.expect(types.colon); + node.alternate = this.parseMaybeAssign(noIn); return this.finishNode(node, "ConditionalExpression") } return expr -} +}; // Start the precedence parser. pp$3.parseExprOps = function(noIn, refDestructuringErrors) { - var startPos = this.start, startLoc = this.startLoc - var expr = this.parseMaybeUnary(refDestructuringErrors, false) - if (this.checkExpressionErrors(refDestructuringErrors)) return expr + var startPos = this.start, startLoc = this.startLoc; + var expr = this.parseMaybeUnary(refDestructuringErrors, false); + if (this.checkExpressionErrors(refDestructuringErrors)) { return expr } return expr.start == startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, noIn) -} +}; // Parse binary operators with the operator precedence parsing // algorithm. `left` is the left-hand side of the operator. @@ -1851,128 +1877,128 @@ pp$3.parseExprOps = function(noIn, refDestructuringErrors) { // operator that has a lower precedence than the set it is parsing. pp$3.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, noIn) { - var prec = this.type.binop - if (prec != null && (!noIn || this.type !== tt._in)) { + var prec = this.type.binop; + if (prec != null && (!noIn || this.type !== types._in)) { if (prec > minPrec) { - var logical = this.type === tt.logicalOR || this.type === tt.logicalAND - var op = this.value - this.next() - var startPos = this.start, startLoc = this.startLoc - var right = this.parseExprOp(this.parseMaybeUnary(null, false), startPos, startLoc, prec, noIn) - var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical) + var logical = this.type === types.logicalOR || this.type === types.logicalAND; + var op = this.value; + this.next(); + var startPos = this.start, startLoc = this.startLoc; + var right = this.parseExprOp(this.parseMaybeUnary(null, false), startPos, startLoc, prec, noIn); + var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical); return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn) } } return left -} +}; pp$3.buildBinary = function(startPos, startLoc, left, right, op, logical) { - var node = this.startNodeAt(startPos, startLoc) - node.left = left - node.operator = op - node.right = right + var node = this.startNodeAt(startPos, startLoc); + node.left = left; + node.operator = op; + node.right = right; return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression") -} +}; // Parse unary operators, both prefix and postfix. pp$3.parseMaybeUnary = function(refDestructuringErrors, sawUnary) { var this$1 = this; - var startPos = this.start, startLoc = this.startLoc, expr + var startPos = this.start, startLoc = this.startLoc, expr; if (this.inAsync && this.isContextual("await")) { - expr = this.parseAwait(refDestructuringErrors) - sawUnary = true + expr = this.parseAwait(refDestructuringErrors); + sawUnary = true; } else if (this.type.prefix) { - var node = this.startNode(), update = this.type === tt.incDec - node.operator = this.value - node.prefix = true - this.next() - node.argument = this.parseMaybeUnary(null, true) - this.checkExpressionErrors(refDestructuringErrors, true) - if (update) this.checkLVal(node.argument) + var node = this.startNode(), update = this.type === types.incDec; + node.operator = this.value; + node.prefix = true; + this.next(); + node.argument = this.parseMaybeUnary(null, true); + this.checkExpressionErrors(refDestructuringErrors, true); + if (update) { this.checkLVal(node.argument); } else if (this.strict && node.operator === "delete" && node.argument.type === "Identifier") - this.raiseRecoverable(node.start, "Deleting local variable in strict mode") - else sawUnary = true - expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression") + { this.raiseRecoverable(node.start, "Deleting local variable in strict mode"); } + else { sawUnary = true; } + expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression"); } else { - expr = this.parseExprSubscripts(refDestructuringErrors) - if (this.checkExpressionErrors(refDestructuringErrors)) return expr + expr = this.parseExprSubscripts(refDestructuringErrors); + if (this.checkExpressionErrors(refDestructuringErrors)) { return expr } while (this.type.postfix && !this.canInsertSemicolon()) { - var node$1 = this$1.startNodeAt(startPos, startLoc) - node$1.operator = this$1.value - node$1.prefix = false - node$1.argument = expr - this$1.checkLVal(expr) - this$1.next() - expr = this$1.finishNode(node$1, "UpdateExpression") + var node$1 = this$1.startNodeAt(startPos, startLoc); + node$1.operator = this$1.value; + node$1.prefix = false; + node$1.argument = expr; + this$1.checkLVal(expr); + this$1.next(); + expr = this$1.finishNode(node$1, "UpdateExpression"); } } - if (!sawUnary && this.eat(tt.starstar)) - return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false), "**", false) + if (!sawUnary && this.eat(types.starstar)) + { return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false), "**", false) } else - return expr -} + { return expr } +}; // Parse call, dot, and `[]`-subscript expressions. pp$3.parseExprSubscripts = function(refDestructuringErrors) { - var startPos = this.start, startLoc = this.startLoc - var expr = this.parseExprAtom(refDestructuringErrors) - var skipArrowSubscripts = expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")" - if (this.checkExpressionErrors(refDestructuringErrors) || skipArrowSubscripts) return expr - var result = this.parseSubscripts(expr, startPos, startLoc) + var startPos = this.start, startLoc = this.startLoc; + var expr = this.parseExprAtom(refDestructuringErrors); + var skipArrowSubscripts = expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")"; + if (this.checkExpressionErrors(refDestructuringErrors) || skipArrowSubscripts) { return expr } + var result = this.parseSubscripts(expr, startPos, startLoc); if (refDestructuringErrors && result.type === "MemberExpression") { - if (refDestructuringErrors.parenthesizedAssign >= result.start) refDestructuringErrors.parenthesizedAssign = -1 - if (refDestructuringErrors.parenthesizedBind >= result.start) refDestructuringErrors.parenthesizedBind = -1 + if (refDestructuringErrors.parenthesizedAssign >= result.start) { refDestructuringErrors.parenthesizedAssign = -1; } + if (refDestructuringErrors.parenthesizedBind >= result.start) { refDestructuringErrors.parenthesizedBind = -1; } } return result -} +}; pp$3.parseSubscripts = function(base, startPos, startLoc, noCalls) { var this$1 = this; var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" && - this.lastTokEnd == base.end && !this.canInsertSemicolon() - for (var computed;;) { - if ((computed = this$1.eat(tt.bracketL)) || this$1.eat(tt.dot)) { - var node = this$1.startNodeAt(startPos, startLoc) - node.object = base - node.property = computed ? this$1.parseExpression() : this$1.parseIdent(true) - node.computed = !!computed - if (computed) this$1.expect(tt.bracketR) - base = this$1.finishNode(node, "MemberExpression") - } else if (!noCalls && this$1.eat(tt.parenL)) { - var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this$1.yieldPos, oldAwaitPos = this$1.awaitPos - this$1.yieldPos = 0 - this$1.awaitPos = 0 - var exprList = this$1.parseExprList(tt.parenR, this$1.options.ecmaVersion >= 8, false, refDestructuringErrors) - if (maybeAsyncArrow && !this$1.canInsertSemicolon() && this$1.eat(tt.arrow)) { - this$1.checkPatternErrors(refDestructuringErrors, false) - this$1.checkYieldAwaitInDefaultParams() - this$1.yieldPos = oldYieldPos - this$1.awaitPos = oldAwaitPos + this.lastTokEnd == base.end && !this.canInsertSemicolon(); + for (var computed = (void 0);;) { + if ((computed = this$1.eat(types.bracketL)) || this$1.eat(types.dot)) { + var node = this$1.startNodeAt(startPos, startLoc); + node.object = base; + node.property = computed ? this$1.parseExpression() : this$1.parseIdent(true); + node.computed = !!computed; + if (computed) { this$1.expect(types.bracketR); } + base = this$1.finishNode(node, "MemberExpression"); + } else if (!noCalls && this$1.eat(types.parenL)) { + var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this$1.yieldPos, oldAwaitPos = this$1.awaitPos; + this$1.yieldPos = 0; + this$1.awaitPos = 0; + var exprList = this$1.parseExprList(types.parenR, this$1.options.ecmaVersion >= 8, false, refDestructuringErrors); + if (maybeAsyncArrow && !this$1.canInsertSemicolon() && this$1.eat(types.arrow)) { + this$1.checkPatternErrors(refDestructuringErrors, false); + this$1.checkYieldAwaitInDefaultParams(); + this$1.yieldPos = oldYieldPos; + this$1.awaitPos = oldAwaitPos; return this$1.parseArrowExpression(this$1.startNodeAt(startPos, startLoc), exprList, true) } - this$1.checkExpressionErrors(refDestructuringErrors, true) - this$1.yieldPos = oldYieldPos || this$1.yieldPos - this$1.awaitPos = oldAwaitPos || this$1.awaitPos - var node$1 = this$1.startNodeAt(startPos, startLoc) - node$1.callee = base - node$1.arguments = exprList - base = this$1.finishNode(node$1, "CallExpression") - } else if (this$1.type === tt.backQuote) { - var node$2 = this$1.startNodeAt(startPos, startLoc) - node$2.tag = base - node$2.quasi = this$1.parseTemplate() - base = this$1.finishNode(node$2, "TaggedTemplateExpression") + this$1.checkExpressionErrors(refDestructuringErrors, true); + this$1.yieldPos = oldYieldPos || this$1.yieldPos; + this$1.awaitPos = oldAwaitPos || this$1.awaitPos; + var node$1 = this$1.startNodeAt(startPos, startLoc); + node$1.callee = base; + node$1.arguments = exprList; + base = this$1.finishNode(node$1, "CallExpression"); + } else if (this$1.type === types.backQuote) { + var node$2 = this$1.startNodeAt(startPos, startLoc); + node$2.tag = base; + node$2.quasi = this$1.parseTemplate({isTagged: true}); + base = this$1.finishNode(node$2, "TaggedTemplateExpression"); } else { return base } } -} +}; // Parse an atomic expression — either a single token that is an // expression, an expression started by a keyword like `function` or @@ -1980,178 +2006,178 @@ pp$3.parseSubscripts = function(base, startPos, startLoc, noCalls) { // or `{}`. pp$3.parseExprAtom = function(refDestructuringErrors) { - var node, canBeArrow = this.potentialArrowAt == this.start + var node, canBeArrow = this.potentialArrowAt == this.start; switch (this.type) { - case tt._super: + case types._super: if (!this.inFunction) - this.raise(this.start, "'super' outside of function or class") + { this.raise(this.start, "'super' outside of function or class"); } - case tt._this: - var type = this.type === tt._this ? "ThisExpression" : "Super" - node = this.startNode() - this.next() + case types._this: + var type = this.type === types._this ? "ThisExpression" : "Super"; + node = this.startNode(); + this.next(); return this.finishNode(node, type) - case tt.name: - var startPos = this.start, startLoc = this.startLoc - var id = this.parseIdent(this.type !== tt.name) - if (this.options.ecmaVersion >= 8 && id.name === "async" && !this.canInsertSemicolon() && this.eat(tt._function)) - return this.parseFunction(this.startNodeAt(startPos, startLoc), false, false, true) + case types.name: + var startPos = this.start, startLoc = this.startLoc; + var id = this.parseIdent(this.type !== types.name); + if (this.options.ecmaVersion >= 8 && id.name === "async" && !this.canInsertSemicolon() && this.eat(types._function)) + { return this.parseFunction(this.startNodeAt(startPos, startLoc), false, false, true) } if (canBeArrow && !this.canInsertSemicolon()) { - if (this.eat(tt.arrow)) - return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false) - if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === tt.name) { - id = this.parseIdent() - if (this.canInsertSemicolon() || !this.eat(tt.arrow)) - this.unexpected() + if (this.eat(types.arrow)) + { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false) } + if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types.name) { + id = this.parseIdent(); + if (this.canInsertSemicolon() || !this.eat(types.arrow)) + { this.unexpected(); } return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true) } } return id - case tt.regexp: - var value = this.value - node = this.parseLiteral(value.value) - node.regex = {pattern: value.pattern, flags: value.flags} + case types.regexp: + var value = this.value; + node = this.parseLiteral(value.value); + node.regex = {pattern: value.pattern, flags: value.flags}; return node - case tt.num: case tt.string: + case types.num: case types.string: return this.parseLiteral(this.value) - case tt._null: case tt._true: case tt._false: - node = this.startNode() - node.value = this.type === tt._null ? null : this.type === tt._true - node.raw = this.type.keyword - this.next() + case types._null: case types._true: case types._false: + node = this.startNode(); + node.value = this.type === types._null ? null : this.type === types._true; + node.raw = this.type.keyword; + this.next(); return this.finishNode(node, "Literal") - case tt.parenL: - var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow) + case types.parenL: + var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow); if (refDestructuringErrors) { if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr)) - refDestructuringErrors.parenthesizedAssign = start + { refDestructuringErrors.parenthesizedAssign = start; } if (refDestructuringErrors.parenthesizedBind < 0) - refDestructuringErrors.parenthesizedBind = start + { refDestructuringErrors.parenthesizedBind = start; } } return expr - case tt.bracketL: - node = this.startNode() - this.next() - node.elements = this.parseExprList(tt.bracketR, true, true, refDestructuringErrors) + case types.bracketL: + node = this.startNode(); + this.next(); + node.elements = this.parseExprList(types.bracketR, true, true, refDestructuringErrors); return this.finishNode(node, "ArrayExpression") - case tt.braceL: + case types.braceL: return this.parseObj(false, refDestructuringErrors) - case tt._function: - node = this.startNode() - this.next() + case types._function: + node = this.startNode(); + this.next(); return this.parseFunction(node, false) - case tt._class: + case types._class: return this.parseClass(this.startNode(), false) - case tt._new: + case types._new: return this.parseNew() - case tt.backQuote: + case types.backQuote: return this.parseTemplate() default: - this.unexpected() + this.unexpected(); } -} +}; pp$3.parseLiteral = function(value) { - var node = this.startNode() - node.value = value - node.raw = this.input.slice(this.start, this.end) - this.next() + var node = this.startNode(); + node.value = value; + node.raw = this.input.slice(this.start, this.end); + this.next(); return this.finishNode(node, "Literal") -} +}; pp$3.parseParenExpression = function() { - this.expect(tt.parenL) - var val = this.parseExpression() - this.expect(tt.parenR) + this.expect(types.parenL); + var val = this.parseExpression(); + this.expect(types.parenR); return val -} +}; pp$3.parseParenAndDistinguishExpression = function(canBeArrow) { var this$1 = this; - var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8 + var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8; if (this.options.ecmaVersion >= 6) { - this.next() - - var innerStartPos = this.start, innerStartLoc = this.startLoc - var exprList = [], first = true, lastIsComma = false - var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart, innerParenStart - this.yieldPos = 0 - this.awaitPos = 0 - while (this.type !== tt.parenR) { - first ? first = false : this$1.expect(tt.comma) - if (allowTrailingComma && this$1.afterTrailingComma(tt.parenR, true)) { - lastIsComma = true + this.next(); + + var innerStartPos = this.start, innerStartLoc = this.startLoc; + var exprList = [], first = true, lastIsComma = false; + var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart, innerParenStart; + this.yieldPos = 0; + this.awaitPos = 0; + while (this.type !== types.parenR) { + first ? first = false : this$1.expect(types.comma); + if (allowTrailingComma && this$1.afterTrailingComma(types.parenR, true)) { + lastIsComma = true; break - } else if (this$1.type === tt.ellipsis) { - spreadStart = this$1.start - exprList.push(this$1.parseParenItem(this$1.parseRest())) - if (this$1.type === tt.comma) this$1.raise(this$1.start, "Comma is not permitted after the rest element") + } else if (this$1.type === types.ellipsis) { + spreadStart = this$1.start; + exprList.push(this$1.parseParenItem(this$1.parseRestBinding())); + if (this$1.type === types.comma) { this$1.raise(this$1.start, "Comma is not permitted after the rest element"); } break } else { - if (this$1.type === tt.parenL && !innerParenStart) { - innerParenStart = this$1.start + if (this$1.type === types.parenL && !innerParenStart) { + innerParenStart = this$1.start; } - exprList.push(this$1.parseMaybeAssign(false, refDestructuringErrors, this$1.parseParenItem)) + exprList.push(this$1.parseMaybeAssign(false, refDestructuringErrors, this$1.parseParenItem)); } } - var innerEndPos = this.start, innerEndLoc = this.startLoc - this.expect(tt.parenR) - - if (canBeArrow && !this.canInsertSemicolon() && this.eat(tt.arrow)) { - this.checkPatternErrors(refDestructuringErrors, false) - this.checkYieldAwaitInDefaultParams() - if (innerParenStart) this.unexpected(innerParenStart) - this.yieldPos = oldYieldPos - this.awaitPos = oldAwaitPos + var innerEndPos = this.start, innerEndLoc = this.startLoc; + this.expect(types.parenR); + + if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) { + this.checkPatternErrors(refDestructuringErrors, false); + this.checkYieldAwaitInDefaultParams(); + if (innerParenStart) { this.unexpected(innerParenStart); } + this.yieldPos = oldYieldPos; + this.awaitPos = oldAwaitPos; return this.parseParenArrowList(startPos, startLoc, exprList) } - if (!exprList.length || lastIsComma) this.unexpected(this.lastTokStart) - if (spreadStart) this.unexpected(spreadStart) - this.checkExpressionErrors(refDestructuringErrors, true) - this.yieldPos = oldYieldPos || this.yieldPos - this.awaitPos = oldAwaitPos || this.awaitPos + if (!exprList.length || lastIsComma) { this.unexpected(this.lastTokStart); } + if (spreadStart) { this.unexpected(spreadStart); } + this.checkExpressionErrors(refDestructuringErrors, true); + this.yieldPos = oldYieldPos || this.yieldPos; + this.awaitPos = oldAwaitPos || this.awaitPos; if (exprList.length > 1) { - val = this.startNodeAt(innerStartPos, innerStartLoc) - val.expressions = exprList - this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc) + val = this.startNodeAt(innerStartPos, innerStartLoc); + val.expressions = exprList; + this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc); } else { - val = exprList[0] + val = exprList[0]; } } else { - val = this.parseParenExpression() + val = this.parseParenExpression(); } if (this.options.preserveParens) { - var par = this.startNodeAt(startPos, startLoc) - par.expression = val + var par = this.startNodeAt(startPos, startLoc); + par.expression = val; return this.finishNode(par, "ParenthesizedExpression") } else { return val } -} +}; pp$3.parseParenItem = function(item) { return item -} +}; pp$3.parseParenArrowList = function(startPos, startLoc, exprList) { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList) -} +}; // New's precedence is slightly tricky. It must allow its argument to // be a `[]` or dot subscript expression, but not a call — at least, @@ -2159,282 +2185,300 @@ pp$3.parseParenArrowList = function(startPos, startLoc, exprList) { // argument to parseSubscripts to prevent it from consuming the // argument list. -var empty$1 = [] +var empty$1 = []; pp$3.parseNew = function() { - var node = this.startNode() - var meta = this.parseIdent(true) - if (this.options.ecmaVersion >= 6 && this.eat(tt.dot)) { - node.meta = meta - node.property = this.parseIdent(true) + var node = this.startNode(); + var meta = this.parseIdent(true); + if (this.options.ecmaVersion >= 6 && this.eat(types.dot)) { + node.meta = meta; + node.property = this.parseIdent(true); if (node.property.name !== "target") - this.raiseRecoverable(node.property.start, "The only valid meta property for new is new.target") + { this.raiseRecoverable(node.property.start, "The only valid meta property for new is new.target"); } if (!this.inFunction) - this.raiseRecoverable(node.start, "new.target can only be used in functions") + { this.raiseRecoverable(node.start, "new.target can only be used in functions"); } return this.finishNode(node, "MetaProperty") } - var startPos = this.start, startLoc = this.startLoc - node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true) - if (this.eat(tt.parenL)) node.arguments = this.parseExprList(tt.parenR, this.options.ecmaVersion >= 8, false) - else node.arguments = empty$1 + var startPos = this.start, startLoc = this.startLoc; + node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true); + if (this.eat(types.parenL)) { node.arguments = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false); } + else { node.arguments = empty$1; } return this.finishNode(node, "NewExpression") -} +}; // Parse template expression. -pp$3.parseTemplateElement = function() { - var elem = this.startNode() - elem.value = { - raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"), - cooked: this.value +pp$3.parseTemplateElement = function(ref) { + var isTagged = ref.isTagged; + + var elem = this.startNode(); + if (this.type === types.invalidTemplate) { + if (!isTagged) { + this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal"); + } + elem.value = { + raw: this.value, + cooked: null + }; + } else { + elem.value = { + raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"), + cooked: this.value + }; } - this.next() - elem.tail = this.type === tt.backQuote + this.next(); + elem.tail = this.type === types.backQuote; return this.finishNode(elem, "TemplateElement") -} +}; -pp$3.parseTemplate = function() { +pp$3.parseTemplate = function(ref) { var this$1 = this; - - var node = this.startNode() - this.next() - node.expressions = [] - var curElt = this.parseTemplateElement() - node.quasis = [curElt] + if ( ref === void 0 ) ref = {}; + var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false; + + var node = this.startNode(); + this.next(); + node.expressions = []; + var curElt = this.parseTemplateElement({isTagged: isTagged}); + node.quasis = [curElt]; while (!curElt.tail) { - this$1.expect(tt.dollarBraceL) - node.expressions.push(this$1.parseExpression()) - this$1.expect(tt.braceR) - node.quasis.push(curElt = this$1.parseTemplateElement()) + this$1.expect(types.dollarBraceL); + node.expressions.push(this$1.parseExpression()); + this$1.expect(types.braceR); + node.quasis.push(curElt = this$1.parseTemplateElement({isTagged: isTagged})); } - this.next() + this.next(); return this.finishNode(node, "TemplateLiteral") -} +}; // Parse an object literal or binding pattern. +pp$3.isAsyncProp = function(prop) { + return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" && + (this.type === types.name || this.type === types.num || this.type === types.string || this.type === types.bracketL) && + !lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) +}; + pp$3.parseObj = function(isPattern, refDestructuringErrors) { var this$1 = this; - var node = this.startNode(), first = true, propHash = {} - node.properties = [] - this.next() - while (!this.eat(tt.braceR)) { + var node = this.startNode(), first = true, propHash = {}; + node.properties = []; + this.next(); + while (!this.eat(types.braceR)) { if (!first) { - this$1.expect(tt.comma) - if (this$1.afterTrailingComma(tt.braceR)) break - } else first = false + this$1.expect(types.comma); + if (this$1.afterTrailingComma(types.braceR)) { break } + } else { first = false; } - var prop = this$1.startNode(), isGenerator, isAsync, startPos, startLoc + var prop = this$1.startNode(), isGenerator = (void 0), isAsync = (void 0), startPos = (void 0), startLoc = (void 0); if (this$1.options.ecmaVersion >= 6) { - prop.method = false - prop.shorthand = false + prop.method = false; + prop.shorthand = false; if (isPattern || refDestructuringErrors) { - startPos = this$1.start - startLoc = this$1.startLoc + startPos = this$1.start; + startLoc = this$1.startLoc; } if (!isPattern) - isGenerator = this$1.eat(tt.star) + { isGenerator = this$1.eat(types.star); } } - this$1.parsePropertyName(prop) - if (!isPattern && this$1.options.ecmaVersion >= 8 && !isGenerator && !prop.computed && - prop.key.type === "Identifier" && prop.key.name === "async" && this$1.type !== tt.parenL && - this$1.type !== tt.colon && !this$1.canInsertSemicolon()) { - isAsync = true - this$1.parsePropertyName(prop, refDestructuringErrors) + this$1.parsePropertyName(prop); + if (!isPattern && this$1.options.ecmaVersion >= 8 && !isGenerator && this$1.isAsyncProp(prop)) { + isAsync = true; + this$1.parsePropertyName(prop, refDestructuringErrors); } else { - isAsync = false + isAsync = false; } - this$1.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors) - this$1.checkPropClash(prop, propHash) - node.properties.push(this$1.finishNode(prop, "Property")) + this$1.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors); + this$1.checkPropClash(prop, propHash); + node.properties.push(this$1.finishNode(prop, "Property")); } return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression") -} +}; pp$3.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors) { - if ((isGenerator || isAsync) && this.type === tt.colon) - this.unexpected() - - if (this.eat(tt.colon)) { - prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors) - prop.kind = "init" - } else if (this.options.ecmaVersion >= 6 && this.type === tt.parenL) { - if (isPattern) this.unexpected() - prop.kind = "init" - prop.method = true - prop.value = this.parseMethod(isGenerator, isAsync) + if ((isGenerator || isAsync) && this.type === types.colon) + { this.unexpected(); } + + if (this.eat(types.colon)) { + prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors); + prop.kind = "init"; + } else if (this.options.ecmaVersion >= 6 && this.type === types.parenL) { + if (isPattern) { this.unexpected(); } + prop.kind = "init"; + prop.method = true; + prop.value = this.parseMethod(isGenerator, isAsync); } else if (this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && - (this.type != tt.comma && this.type != tt.braceR)) { - if (isGenerator || isAsync || isPattern) this.unexpected() - prop.kind = prop.key.name - this.parsePropertyName(prop) - prop.value = this.parseMethod(false) - var paramCount = prop.kind === "get" ? 0 : 1 + (this.type != types.comma && this.type != types.braceR)) { + if (isGenerator || isAsync || isPattern) { this.unexpected(); } + prop.kind = prop.key.name; + this.parsePropertyName(prop); + prop.value = this.parseMethod(false); + var paramCount = prop.kind === "get" ? 0 : 1; if (prop.value.params.length !== paramCount) { - var start = prop.value.start + var start = prop.value.start; if (prop.kind === "get") - this.raiseRecoverable(start, "getter should have no params") + { this.raiseRecoverable(start, "getter should have no params"); } else - this.raiseRecoverable(start, "setter should have exactly one param") + { this.raiseRecoverable(start, "setter should have exactly one param"); } } else { if (prop.kind === "set" && prop.value.params[0].type === "RestElement") - this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params") + { this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params"); } } } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") { - if (this.keywords.test(prop.key.name) || - (this.strict ? this.reservedWordsStrict : this.reservedWords).test(prop.key.name) || - (this.inGenerator && prop.key.name == "yield") || - (this.inAsync && prop.key.name == "await")) - this.raiseRecoverable(prop.key.start, "'" + prop.key.name + "' can not be used as shorthand property") - prop.kind = "init" + this.checkUnreserved(prop.key); + prop.kind = "init"; if (isPattern) { - prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key) - } else if (this.type === tt.eq && refDestructuringErrors) { + prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key); + } else if (this.type === types.eq && refDestructuringErrors) { if (refDestructuringErrors.shorthandAssign < 0) - refDestructuringErrors.shorthandAssign = this.start - prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key) + { refDestructuringErrors.shorthandAssign = this.start; } + prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key); } else { - prop.value = prop.key + prop.value = prop.key; } - prop.shorthand = true - } else this.unexpected() -} + prop.shorthand = true; + } else { this.unexpected(); } +}; pp$3.parsePropertyName = function(prop) { if (this.options.ecmaVersion >= 6) { - if (this.eat(tt.bracketL)) { - prop.computed = true - prop.key = this.parseMaybeAssign() - this.expect(tt.bracketR) + if (this.eat(types.bracketL)) { + prop.computed = true; + prop.key = this.parseMaybeAssign(); + this.expect(types.bracketR); return prop.key } else { - prop.computed = false + prop.computed = false; } } - return prop.key = this.type === tt.num || this.type === tt.string ? this.parseExprAtom() : this.parseIdent(true) -} + return prop.key = this.type === types.num || this.type === types.string ? this.parseExprAtom() : this.parseIdent(true) +}; // Initialize empty function node. pp$3.initFunction = function(node) { - node.id = null + node.id = null; if (this.options.ecmaVersion >= 6) { - node.generator = false - node.expression = false + node.generator = false; + node.expression = false; } if (this.options.ecmaVersion >= 8) - node.async = false -} + { node.async = false; } +}; // Parse object or class method. pp$3.parseMethod = function(isGenerator, isAsync) { var node = this.startNode(), oldInGen = this.inGenerator, oldInAsync = this.inAsync, - oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction + oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction; - this.initFunction(node) + this.initFunction(node); if (this.options.ecmaVersion >= 6) - node.generator = isGenerator + { node.generator = isGenerator; } if (this.options.ecmaVersion >= 8) - node.async = !!isAsync - - this.inGenerator = node.generator - this.inAsync = node.async - this.yieldPos = 0 - this.awaitPos = 0 - this.inFunction = true - this.enterFunctionScope() - - this.expect(tt.parenL) - node.params = this.parseBindingList(tt.parenR, false, this.options.ecmaVersion >= 8) - this.checkYieldAwaitInDefaultParams() - this.parseFunctionBody(node, false) - - this.inGenerator = oldInGen - this.inAsync = oldInAsync - this.yieldPos = oldYieldPos - this.awaitPos = oldAwaitPos - this.inFunction = oldInFunc + { node.async = !!isAsync; } + + this.inGenerator = node.generator; + this.inAsync = node.async; + this.yieldPos = 0; + this.awaitPos = 0; + this.inFunction = true; + this.enterFunctionScope(); + + this.expect(types.parenL); + node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8); + this.checkYieldAwaitInDefaultParams(); + this.parseFunctionBody(node, false); + + this.inGenerator = oldInGen; + this.inAsync = oldInAsync; + this.yieldPos = oldYieldPos; + this.awaitPos = oldAwaitPos; + this.inFunction = oldInFunc; return this.finishNode(node, "FunctionExpression") -} +}; // Parse arrow function expression with given parameters. pp$3.parseArrowExpression = function(node, params, isAsync) { var oldInGen = this.inGenerator, oldInAsync = this.inAsync, - oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction + oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction; - this.enterFunctionScope() - this.initFunction(node) + this.enterFunctionScope(); + this.initFunction(node); if (this.options.ecmaVersion >= 8) - node.async = !!isAsync - - this.inGenerator = false - this.inAsync = node.async - this.yieldPos = 0 - this.awaitPos = 0 - this.inFunction = true - - node.params = this.toAssignableList(params, true) - this.parseFunctionBody(node, true) - - this.inGenerator = oldInGen - this.inAsync = oldInAsync - this.yieldPos = oldYieldPos - this.awaitPos = oldAwaitPos - this.inFunction = oldInFunc + { node.async = !!isAsync; } + + this.inGenerator = false; + this.inAsync = node.async; + this.yieldPos = 0; + this.awaitPos = 0; + this.inFunction = true; + + node.params = this.toAssignableList(params, true); + this.parseFunctionBody(node, true); + + this.inGenerator = oldInGen; + this.inAsync = oldInAsync; + this.yieldPos = oldYieldPos; + this.awaitPos = oldAwaitPos; + this.inFunction = oldInFunc; return this.finishNode(node, "ArrowFunctionExpression") -} +}; // Parse function body and check parameters. pp$3.parseFunctionBody = function(node, isArrowFunction) { - var isExpression = isArrowFunction && this.type !== tt.braceL - var oldStrict = this.strict, useStrict = false + var isExpression = isArrowFunction && this.type !== types.braceL; + var oldStrict = this.strict, useStrict = false; if (isExpression) { - node.body = this.parseMaybeAssign() - node.expression = true - this.checkParams(node, false) + node.body = this.parseMaybeAssign(); + node.expression = true; + this.checkParams(node, false); } else { - var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params) + var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params); if (!oldStrict || nonSimple) { - useStrict = this.strictDirective(this.end) + useStrict = this.strictDirective(this.end); // If this is a strict mode function, verify that argument names // are not repeated, and it does not try to bind the words `eval` // or `arguments`. if (useStrict && nonSimple) - this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list") + { this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list"); } } // Start a new scope with regard to labels and the `inFunction` // flag (restore them to their old value afterwards). - var oldLabels = this.labels - this.labels = [] - if (useStrict) this.strict = true + var oldLabels = this.labels; + this.labels = []; + if (useStrict) { this.strict = true; } // Add the params to varDeclaredNames to ensure that an error is thrown // if a let/const declaration in the function clashes with one of the params. - this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && this.isSimpleParamList(node.params)) - node.body = this.parseBlock(false) - node.expression = false - this.labels = oldLabels + this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && this.isSimpleParamList(node.params)); + node.body = this.parseBlock(false); + node.expression = false; + this.labels = oldLabels; } - this.exitFunctionScope() + this.exitFunctionScope(); if (this.strict && node.id) { // Ensure the function name isn't a forbidden identifier in strict mode, e.g. 'eval' - this.checkLVal(node.id, "none") + this.checkLVal(node.id, "none"); } - this.strict = oldStrict -} + this.strict = oldStrict; +}; pp$3.isSimpleParamList = function(params) { - for (var i = 0; i < params.length; i++) - if (params[i].type !== "Identifier") return false + for (var i = 0, list = params; i < list.length; i += 1) + { + var param = list[i]; + + if (param.type !== "Identifier") { return false + } } return true -} +}; // Checks function params for various disallowed patterns such as using "eval" // or "arguments" and duplicate parameters. @@ -2442,9 +2486,14 @@ pp$3.isSimpleParamList = function(params) { pp$3.checkParams = function(node, allowDuplicates) { var this$1 = this; - var nameHash = {} - for (var i = 0; i < node.params.length; i++) this$1.checkLVal(node.params[i], "var", allowDuplicates ? null : nameHash) -} + var nameHash = {}; + for (var i = 0, list = node.params; i < list.length; i += 1) + { + var param = list[i]; + + this$1.checkLVal(param, "var", allowDuplicates ? null : nameHash); + } +}; // Parses a comma-separated list of expressions, and returns them as // an array. `close` is the token type that ends the list, and @@ -2455,81 +2504,93 @@ pp$3.checkParams = function(node, allowDuplicates) { pp$3.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) { var this$1 = this; - var elts = [], first = true + var elts = [], first = true; while (!this.eat(close)) { if (!first) { - this$1.expect(tt.comma) - if (allowTrailingComma && this$1.afterTrailingComma(close)) break - } else first = false - - var elt - if (allowEmpty && this$1.type === tt.comma) - elt = null - else if (this$1.type === tt.ellipsis) { - elt = this$1.parseSpread(refDestructuringErrors) - if (refDestructuringErrors && this$1.type === tt.comma && refDestructuringErrors.trailingComma < 0) - refDestructuringErrors.trailingComma = this$1.start + this$1.expect(types.comma); + if (allowTrailingComma && this$1.afterTrailingComma(close)) { break } + } else { first = false; } + + var elt = (void 0); + if (allowEmpty && this$1.type === types.comma) + { elt = null; } + else if (this$1.type === types.ellipsis) { + elt = this$1.parseSpread(refDestructuringErrors); + if (refDestructuringErrors && this$1.type === types.comma && refDestructuringErrors.trailingComma < 0) + { refDestructuringErrors.trailingComma = this$1.start; } } else { - elt = this$1.parseMaybeAssign(false, refDestructuringErrors) + elt = this$1.parseMaybeAssign(false, refDestructuringErrors); } - elts.push(elt) + elts.push(elt); } return elts -} +}; // Parse the next token as an identifier. If `liberal` is true (used // when parsing properties), it will also convert keywords into // identifiers. -pp$3.parseIdent = function(liberal) { - var node = this.startNode() - if (liberal && this.options.allowReserved == "never") liberal = false - if (this.type === tt.name) { - if (!liberal && (this.strict ? this.reservedWordsStrict : this.reservedWords).test(this.value) && - (this.options.ecmaVersion >= 6 || - this.input.slice(this.start, this.end).indexOf("\\") == -1)) - this.raiseRecoverable(this.start, "The keyword '" + this.value + "' is reserved") - if (this.inGenerator && this.value === "yield") - this.raiseRecoverable(this.start, "Can not use 'yield' as identifier inside a generator") - if (this.inAsync && this.value === "await") - this.raiseRecoverable(this.start, "Can not use 'await' as identifier inside an async function") - node.name = this.value - } else if (liberal && this.type.keyword) { - node.name = this.type.keyword +pp$3.checkUnreserved = function(ref) { + var start = ref.start; + var end = ref.end; + var name = ref.name; + + if (this.inGenerator && name === "yield") + { this.raiseRecoverable(start, "Can not use 'yield' as identifier inside a generator"); } + if (this.inAsync && name === "await") + { this.raiseRecoverable(start, "Can not use 'await' as identifier inside an async function"); } + if (this.isKeyword(name)) + { this.raise(start, ("Unexpected keyword '" + name + "'")); } + if (this.options.ecmaVersion < 6 && + this.input.slice(start, end).indexOf("\\") != -1) { return } + var re = this.strict ? this.reservedWordsStrict : this.reservedWords; + if (re.test(name)) + { this.raiseRecoverable(start, ("The keyword '" + name + "' is reserved")); } +}; + +pp$3.parseIdent = function(liberal, isBinding) { + var node = this.startNode(); + if (liberal && this.options.allowReserved == "never") { liberal = false; } + if (this.type === types.name) { + node.name = this.value; + } else if (this.type.keyword) { + node.name = this.type.keyword; } else { - this.unexpected() + this.unexpected(); } - this.next() - return this.finishNode(node, "Identifier") -} + this.next(); + this.finishNode(node, "Identifier"); + if (!liberal) { this.checkUnreserved(node); } + return node +}; // Parses yield expression inside generator. pp$3.parseYield = function() { - if (!this.yieldPos) this.yieldPos = this.start + if (!this.yieldPos) { this.yieldPos = this.start; } - var node = this.startNode() - this.next() - if (this.type == tt.semi || this.canInsertSemicolon() || (this.type != tt.star && !this.type.startsExpr)) { - node.delegate = false - node.argument = null + var node = this.startNode(); + this.next(); + if (this.type == types.semi || this.canInsertSemicolon() || (this.type != types.star && !this.type.startsExpr)) { + node.delegate = false; + node.argument = null; } else { - node.delegate = this.eat(tt.star) - node.argument = this.parseMaybeAssign() + node.delegate = this.eat(types.star); + node.argument = this.parseMaybeAssign(); } return this.finishNode(node, "YieldExpression") -} +}; pp$3.parseAwait = function() { - if (!this.awaitPos) this.awaitPos = this.start + if (!this.awaitPos) { this.awaitPos = this.start; } - var node = this.startNode() - this.next() - node.argument = this.parseMaybeUnary(null, true) + var node = this.startNode(); + this.next(); + node.argument = this.parseMaybeUnary(null, true); return this.finishNode(node, "AwaitExpression") -} +}; -var pp$4 = Parser.prototype +var pp$4 = Parser.prototype; // This function is used to raise exceptions on parse errors. It // takes an offset integer (into the current `input`) to indicate @@ -2538,38 +2599,39 @@ var pp$4 = Parser.prototype // message. pp$4.raise = function(pos, message) { - var loc = getLineInfo(this.input, pos) - message += " (" + loc.line + ":" + loc.column + ")" - var err = new SyntaxError(message) - err.pos = pos; err.loc = loc; err.raisedAt = this.pos + var loc = getLineInfo(this.input, pos); + message += " (" + loc.line + ":" + loc.column + ")"; + var err = new SyntaxError(message); + err.pos = pos; err.loc = loc; err.raisedAt = this.pos; throw err -} +}; -pp$4.raiseRecoverable = pp$4.raise +pp$4.raiseRecoverable = pp$4.raise; pp$4.curPosition = function() { if (this.options.locations) { return new Position(this.curLine, this.pos - this.lineStart) } -} +}; -var pp$5 = Parser.prototype +var pp$5 = Parser.prototype; // Object.assign polyfill var assign = Object.assign || function(target) { var sources = [], len = arguments.length - 1; while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ]; - for (var i = 0; i < sources.length; i++) { - var source = sources[i] + for (var i = 0, list = sources; i < list.length; i += 1) { + var source = list[i]; + for (var key in source) { if (has(source, key)) { - target[key] = source[key] + target[key] = source[key]; } } } return target -} +}; // The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names. @@ -2578,37 +2640,37 @@ pp$5.enterFunctionScope = function() { // lexical: a hash of lexically-declared names in the current lexical scope // childVar: a hash of var-declared names in all child lexical scopes of the current lexical scope (within the current function scope) // parentLexical: a hash of lexically-declared names in all parent lexical scopes of the current lexical scope (within the current function scope) - this.scopeStack.push({var: {}, lexical: {}, childVar: {}, parentLexical: {}}) -} + this.scopeStack.push({var: {}, lexical: {}, childVar: {}, parentLexical: {}}); +}; pp$5.exitFunctionScope = function() { - this.scopeStack.pop() -} + this.scopeStack.pop(); +}; pp$5.enterLexicalScope = function() { - var parentScope = this.scopeStack[this.scopeStack.length - 1] - var childScope = {var: {}, lexical: {}, childVar: {}, parentLexical: {}} + var parentScope = this.scopeStack[this.scopeStack.length - 1]; + var childScope = {var: {}, lexical: {}, childVar: {}, parentLexical: {}}; - this.scopeStack.push(childScope) - assign(childScope.parentLexical, parentScope.lexical, parentScope.parentLexical) -} + this.scopeStack.push(childScope); + assign(childScope.parentLexical, parentScope.lexical, parentScope.parentLexical); +}; pp$5.exitLexicalScope = function() { - var childScope = this.scopeStack.pop() - var parentScope = this.scopeStack[this.scopeStack.length - 1] + var childScope = this.scopeStack.pop(); + var parentScope = this.scopeStack[this.scopeStack.length - 1]; - assign(parentScope.childVar, childScope.var, childScope.childVar) -} + assign(parentScope.childVar, childScope.var, childScope.childVar); +}; /** * A name can be declared with `var` if there are no variables with the same name declared with `let`/`const` * in the current lexical scope or any of the parent lexical scopes in this function. */ pp$5.canDeclareVarName = function(name) { - var currentScope = this.scopeStack[this.scopeStack.length - 1] + var currentScope = this.scopeStack[this.scopeStack.length - 1]; return !has(currentScope.lexical, name) && !has(currentScope.parentLexical, name) -} +}; /** * A name can be declared with `let`/`const` if there are no variables with the same name declared with `let`/`const` @@ -2616,329 +2678,337 @@ pp$5.canDeclareVarName = function(name) { * any child lexical scopes in this function. */ pp$5.canDeclareLexicalName = function(name) { - var currentScope = this.scopeStack[this.scopeStack.length - 1] + var currentScope = this.scopeStack[this.scopeStack.length - 1]; return !has(currentScope.lexical, name) && !has(currentScope.var, name) && !has(currentScope.childVar, name) -} +}; pp$5.declareVarName = function(name) { - this.scopeStack[this.scopeStack.length - 1].var[name] = true -} + this.scopeStack[this.scopeStack.length - 1].var[name] = true; +}; pp$5.declareLexicalName = function(name) { - this.scopeStack[this.scopeStack.length - 1].lexical[name] = true -} + this.scopeStack[this.scopeStack.length - 1].lexical[name] = true; +}; var Node = function Node(parser, pos, loc) { - this.type = "" - this.start = pos - this.end = 0 + this.type = ""; + this.start = pos; + this.end = 0; if (parser.options.locations) - this.loc = new SourceLocation(parser, loc) + { this.loc = new SourceLocation(parser, loc); } if (parser.options.directSourceFile) - this.sourceFile = parser.options.directSourceFile + { this.sourceFile = parser.options.directSourceFile; } if (parser.options.ranges) - this.range = [pos, 0] + { this.range = [pos, 0]; } }; // Start an AST node, attaching a start offset. -var pp$6 = Parser.prototype +var pp$6 = Parser.prototype; pp$6.startNode = function() { return new Node(this, this.start, this.startLoc) -} +}; pp$6.startNodeAt = function(pos, loc) { return new Node(this, pos, loc) -} +}; // Finish an AST node, adding `type` and `end` properties. function finishNodeAt(node, type, pos, loc) { - node.type = type - node.end = pos + node.type = type; + node.end = pos; if (this.options.locations) - node.loc.end = loc + { node.loc.end = loc; } if (this.options.ranges) - node.range[1] = pos + { node.range[1] = pos; } return node } pp$6.finishNode = function(node, type) { return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc) -} +}; // Finish node at given position pp$6.finishNodeAt = function(node, type, pos, loc) { return finishNodeAt.call(this, node, type, pos, loc) -} +}; // The algorithm used to determine whether a regexp can appear at a // given point in the program is loosely based on sweet.js' approach. // See https://github.com/mozilla/sweet.js/wiki/design var TokContext = function TokContext(token, isExpr, preserveSpace, override, generator) { - this.token = token - this.isExpr = !!isExpr - this.preserveSpace = !!preserveSpace - this.override = override - this.generator = !!generator + this.token = token; + this.isExpr = !!isExpr; + this.preserveSpace = !!preserveSpace; + this.override = override; + this.generator = !!generator; }; -var types = { +var types$1 = { b_stat: new TokContext("{", false), b_expr: new TokContext("{", true), - b_tmpl: new TokContext("${", true), + b_tmpl: new TokContext("${", false), p_stat: new TokContext("(", false), p_expr: new TokContext("(", true), - q_tmpl: new TokContext("`", true, true, function (p) { return p.readTmplToken(); }), + q_tmpl: new TokContext("`", true, true, function (p) { return p.tryReadTemplateToken(); }), + f_stat: new TokContext("function", false), f_expr: new TokContext("function", true), f_expr_gen: new TokContext("function", true, false, null, true), f_gen: new TokContext("function", false, false, null, true) -} +}; -var pp$7 = Parser.prototype +var pp$7 = Parser.prototype; pp$7.initialContext = function() { - return [types.b_stat] -} + return [types$1.b_stat] +}; pp$7.braceIsBlock = function(prevType) { - if (prevType === tt.colon) { - var parent = this.curContext() - if (parent === types.b_stat || parent === types.b_expr) - return !parent.isExpr - } - if (prevType === tt._return) - return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) - if (prevType === tt._else || prevType === tt.semi || prevType === tt.eof || prevType === tt.parenR || prevType == tt.arrow) - return true - if (prevType == tt.braceL) - return this.curContext() === types.b_stat + var parent = this.curContext(); + if (parent === types$1.f_expr || parent === types$1.f_stat) + { return true } + if (prevType === types.colon && (parent === types$1.b_stat || parent === types$1.b_expr)) + { return !parent.isExpr } + + // The check for `tt.name && exprAllowed` detects whether we are + // after a `yield` or `of` construct. See the `updateContext` for + // `tt.name`. + if (prevType === types._return || prevType == types.name && this.exprAllowed) + { return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) } + if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR || prevType == types.arrow) + { return true } + if (prevType == types.braceL) + { return parent === types$1.b_stat } + if (prevType == types._var || prevType == types.name) + { return false } return !this.exprAllowed -} +}; pp$7.inGeneratorContext = function() { var this$1 = this; - for (var i = this.context.length - 1; i >= 0; i--) - if (this$1.context[i].generator) return true + for (var i = this.context.length - 1; i >= 1; i--) { + var context = this$1.context[i]; + if (context.token === "function") + { return context.generator } + } return false -} +}; pp$7.updateContext = function(prevType) { - var update, type = this.type - if (type.keyword && prevType == tt.dot) - this.exprAllowed = false + var update, type = this.type; + if (type.keyword && prevType == types.dot) + { this.exprAllowed = false; } else if (update = type.updateContext) - update.call(this, prevType) + { update.call(this, prevType); } else - this.exprAllowed = type.beforeExpr -} + { this.exprAllowed = type.beforeExpr; } +}; // Token-specific context update code -tt.parenR.updateContext = tt.braceR.updateContext = function() { +types.parenR.updateContext = types.braceR.updateContext = function() { if (this.context.length == 1) { - this.exprAllowed = true + this.exprAllowed = true; return } - var out = this.context.pop(), cur - if (out === types.b_stat && (cur = this.curContext()) && cur.token === "function") { - this.context.pop() - this.exprAllowed = false - } else if (out === types.b_tmpl) { - this.exprAllowed = true - } else { - this.exprAllowed = !out.isExpr + var out = this.context.pop(); + if (out === types$1.b_stat && this.curContext().token === "function") { + out = this.context.pop(); } -} + this.exprAllowed = !out.isExpr; +}; -tt.braceL.updateContext = function(prevType) { - this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr) - this.exprAllowed = true -} +types.braceL.updateContext = function(prevType) { + this.context.push(this.braceIsBlock(prevType) ? types$1.b_stat : types$1.b_expr); + this.exprAllowed = true; +}; -tt.dollarBraceL.updateContext = function() { - this.context.push(types.b_tmpl) - this.exprAllowed = true -} +types.dollarBraceL.updateContext = function() { + this.context.push(types$1.b_tmpl); + this.exprAllowed = true; +}; -tt.parenL.updateContext = function(prevType) { - var statementParens = prevType === tt._if || prevType === tt._for || prevType === tt._with || prevType === tt._while - this.context.push(statementParens ? types.p_stat : types.p_expr) - this.exprAllowed = true -} +types.parenL.updateContext = function(prevType) { + var statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while; + this.context.push(statementParens ? types$1.p_stat : types$1.p_expr); + this.exprAllowed = true; +}; -tt.incDec.updateContext = function() { +types.incDec.updateContext = function() { // tokExprAllowed stays unchanged -} +}; -tt._function.updateContext = function(prevType) { - if (prevType.beforeExpr && prevType !== tt.semi && prevType !== tt._else && - !((prevType === tt.colon || prevType === tt.braceL) && this.curContext() === types.b_stat)) - this.context.push(types.f_expr) - this.exprAllowed = false -} +types._function.updateContext = types._class.updateContext = function(prevType) { + if (prevType.beforeExpr && prevType !== types.semi && prevType !== types._else && + !((prevType === types.colon || prevType === types.braceL) && this.curContext() === types$1.b_stat)) + { this.context.push(types$1.f_expr); } + else + { this.context.push(types$1.f_stat); } + this.exprAllowed = false; +}; -tt.backQuote.updateContext = function() { - if (this.curContext() === types.q_tmpl) - this.context.pop() +types.backQuote.updateContext = function() { + if (this.curContext() === types$1.q_tmpl) + { this.context.pop(); } else - this.context.push(types.q_tmpl) - this.exprAllowed = false -} + { this.context.push(types$1.q_tmpl); } + this.exprAllowed = false; +}; -tt.star.updateContext = function(prevType) { - if (prevType == tt._function) { - if (this.curContext() === types.f_expr) - this.context[this.context.length - 1] = types.f_expr_gen +types.star.updateContext = function(prevType) { + if (prevType == types._function) { + var index = this.context.length - 1; + if (this.context[index] === types$1.f_expr) + { this.context[index] = types$1.f_expr_gen; } else - this.context.push(types.f_gen) + { this.context[index] = types$1.f_gen; } } - this.exprAllowed = true -} + this.exprAllowed = true; +}; -tt.name.updateContext = function(prevType) { - var allowed = false +types.name.updateContext = function(prevType) { + var allowed = false; if (this.options.ecmaVersion >= 6) { if (this.value == "of" && !this.exprAllowed || this.value == "yield" && this.inGeneratorContext()) - allowed = true + { allowed = true; } } - this.exprAllowed = allowed -} + this.exprAllowed = allowed; +}; // Object type used to represent tokens. Note that normally, tokens // simply exist as properties on the parser object. This is only // used for the onToken callback and the external tokenizer. var Token = function Token(p) { - this.type = p.type - this.value = p.value - this.start = p.start - this.end = p.end + this.type = p.type; + this.value = p.value; + this.start = p.start; + this.end = p.end; if (p.options.locations) - this.loc = new SourceLocation(p, p.startLoc, p.endLoc) + { this.loc = new SourceLocation(p, p.startLoc, p.endLoc); } if (p.options.ranges) - this.range = [p.start, p.end] + { this.range = [p.start, p.end]; } }; // ## Tokenizer -var pp$8 = Parser.prototype +var pp$8 = Parser.prototype; // Are we running under Rhino? -var isRhino = typeof Packages == "object" && Object.prototype.toString.call(Packages) == "[object JavaPackage]" +var isRhino = typeof Packages == "object" && Object.prototype.toString.call(Packages) == "[object JavaPackage]"; // Move to the next token pp$8.next = function() { if (this.options.onToken) - this.options.onToken(new Token(this)) + { this.options.onToken(new Token(this)); } - this.lastTokEnd = this.end - this.lastTokStart = this.start - this.lastTokEndLoc = this.endLoc - this.lastTokStartLoc = this.startLoc - this.nextToken() -} + this.lastTokEnd = this.end; + this.lastTokStart = this.start; + this.lastTokEndLoc = this.endLoc; + this.lastTokStartLoc = this.startLoc; + this.nextToken(); +}; pp$8.getToken = function() { - this.next() + this.next(); return new Token(this) -} +}; // If we're in an ES6 environment, make parsers iterable if (typeof Symbol !== "undefined") - pp$8[Symbol.iterator] = function() { + { pp$8[Symbol.iterator] = function() { var this$1 = this; return { next: function () { - var token = this$1.getToken() + var token = this$1.getToken(); return { - done: token.type === tt.eof, + done: token.type === types.eof, value: token } } } - } + }; } // Toggle strict mode. Re-reads the next number or string to please // pedantic tests (`"use strict"; 010;` should fail). pp$8.curContext = function() { return this.context[this.context.length - 1] -} +}; // Read a single token, updating the parser object's token-related // properties. pp$8.nextToken = function() { - var curContext = this.curContext() - if (!curContext || !curContext.preserveSpace) this.skipSpace() + var curContext = this.curContext(); + if (!curContext || !curContext.preserveSpace) { this.skipSpace(); } - this.start = this.pos - if (this.options.locations) this.startLoc = this.curPosition() - if (this.pos >= this.input.length) return this.finishToken(tt.eof) + this.start = this.pos; + if (this.options.locations) { this.startLoc = this.curPosition(); } + if (this.pos >= this.input.length) { return this.finishToken(types.eof) } - if (curContext.override) return curContext.override(this) - else this.readToken(this.fullCharCodeAtPos()) -} + if (curContext.override) { return curContext.override(this) } + else { this.readToken(this.fullCharCodeAtPos()); } +}; pp$8.readToken = function(code) { // Identifier or keyword. '\uXXXX' sequences are allowed in // identifiers, so '\' also dispatches to that. if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */) - return this.readWord() + { return this.readWord() } return this.getTokenFromCode(code) -} +}; pp$8.fullCharCodeAtPos = function() { - var code = this.input.charCodeAt(this.pos) - if (code <= 0xd7ff || code >= 0xe000) return code - var next = this.input.charCodeAt(this.pos + 1) + var code = this.input.charCodeAt(this.pos); + if (code <= 0xd7ff || code >= 0xe000) { return code } + var next = this.input.charCodeAt(this.pos + 1); return (code << 10) + next - 0x35fdc00 -} +}; pp$8.skipBlockComment = function() { var this$1 = this; - var startLoc = this.options.onComment && this.curPosition() - var start = this.pos, end = this.input.indexOf("*/", this.pos += 2) - if (end === -1) this.raise(this.pos - 2, "Unterminated comment") - this.pos = end + 2 + var startLoc = this.options.onComment && this.curPosition(); + var start = this.pos, end = this.input.indexOf("*/", this.pos += 2); + if (end === -1) { this.raise(this.pos - 2, "Unterminated comment"); } + this.pos = end + 2; if (this.options.locations) { - lineBreakG.lastIndex = start - var match + lineBreakG.lastIndex = start; + var match; while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) { - ++this$1.curLine - this$1.lineStart = match.index + match[0].length + ++this$1.curLine; + this$1.lineStart = match.index + match[0].length; } } if (this.options.onComment) - this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos, - startLoc, this.curPosition()) -} + { this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos, + startLoc, this.curPosition()); } +}; pp$8.skipLineComment = function(startSkip) { var this$1 = this; - var start = this.pos - var startLoc = this.options.onComment && this.curPosition() - var ch = this.input.charCodeAt(this.pos += startSkip) - while (this.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) { - ++this$1.pos - ch = this$1.input.charCodeAt(this$1.pos) + var start = this.pos; + var startLoc = this.options.onComment && this.curPosition(); + var ch = this.input.charCodeAt(this.pos += startSkip); + while (this.pos < this.input.length && !isNewLine(ch)) { + ch = this$1.input.charCodeAt(++this$1.pos); } if (this.options.onComment) - this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos, - startLoc, this.curPosition()) -} + { this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos, + startLoc, this.curPosition()); } +}; // Called at the start of the parse and after every token. Skips // whitespace and comments, and. @@ -2947,29 +3017,29 @@ pp$8.skipSpace = function() { var this$1 = this; loop: while (this.pos < this.input.length) { - var ch = this$1.input.charCodeAt(this$1.pos) + var ch = this$1.input.charCodeAt(this$1.pos); switch (ch) { case 32: case 160: // ' ' - ++this$1.pos + ++this$1.pos; break case 13: if (this$1.input.charCodeAt(this$1.pos + 1) === 10) { - ++this$1.pos + ++this$1.pos; } case 10: case 8232: case 8233: - ++this$1.pos + ++this$1.pos; if (this$1.options.locations) { - ++this$1.curLine - this$1.lineStart = this$1.pos + ++this$1.curLine; + this$1.lineStart = this$1.pos; } break case 47: // '/' switch (this$1.input.charCodeAt(this$1.pos + 1)) { case 42: // '*' - this$1.skipBlockComment() + this$1.skipBlockComment(); break case 47: - this$1.skipLineComment(2) + this$1.skipLineComment(2); break default: break loop @@ -2977,13 +3047,13 @@ pp$8.skipSpace = function() { break default: if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) { - ++this$1.pos + ++this$1.pos; } else { break loop } } } -} +}; // Called at the end of every token. Sets `end`, `val`, and // maintains `context` and `exprAllowed`, and skips the space after @@ -2991,14 +3061,14 @@ pp$8.skipSpace = function() { // right position. pp$8.finishToken = function(type, val) { - this.end = this.pos - if (this.options.locations) this.endLoc = this.curPosition() - var prevType = this.type - this.type = type - this.value = val + this.end = this.pos; + if (this.options.locations) { this.endLoc = this.curPosition(); } + var prevType = this.type; + this.type = type; + this.value = val; - this.updateContext(prevType) -} + this.updateContext(prevType); +}; // ### Token reading @@ -3010,99 +3080,99 @@ pp$8.finishToken = function(type, val) { // All in the name of speed. // pp$8.readToken_dot = function() { - var next = this.input.charCodeAt(this.pos + 1) - if (next >= 48 && next <= 57) return this.readNumber(true) - var next2 = this.input.charCodeAt(this.pos + 2) + var next = this.input.charCodeAt(this.pos + 1); + if (next >= 48 && next <= 57) { return this.readNumber(true) } + var next2 = this.input.charCodeAt(this.pos + 2); if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.' - this.pos += 3 - return this.finishToken(tt.ellipsis) + this.pos += 3; + return this.finishToken(types.ellipsis) } else { - ++this.pos - return this.finishToken(tt.dot) + ++this.pos; + return this.finishToken(types.dot) } -} +}; pp$8.readToken_slash = function() { // '/' - var next = this.input.charCodeAt(this.pos + 1) + var next = this.input.charCodeAt(this.pos + 1); if (this.exprAllowed) { ++this.pos; return this.readRegexp() } - if (next === 61) return this.finishOp(tt.assign, 2) - return this.finishOp(tt.slash, 1) -} + if (next === 61) { return this.finishOp(types.assign, 2) } + return this.finishOp(types.slash, 1) +}; pp$8.readToken_mult_modulo_exp = function(code) { // '%*' - var next = this.input.charCodeAt(this.pos + 1) - var size = 1 - var tokentype = code === 42 ? tt.star : tt.modulo + var next = this.input.charCodeAt(this.pos + 1); + var size = 1; + var tokentype = code === 42 ? types.star : types.modulo; // exponentiation operator ** and **= if (this.options.ecmaVersion >= 7 && next === 42) { - ++size - tokentype = tt.starstar - next = this.input.charCodeAt(this.pos + 2) + ++size; + tokentype = types.starstar; + next = this.input.charCodeAt(this.pos + 2); } - if (next === 61) return this.finishOp(tt.assign, size + 1) + if (next === 61) { return this.finishOp(types.assign, size + 1) } return this.finishOp(tokentype, size) -} +}; pp$8.readToken_pipe_amp = function(code) { // '|&' - var next = this.input.charCodeAt(this.pos + 1) - if (next === code) return this.finishOp(code === 124 ? tt.logicalOR : tt.logicalAND, 2) - if (next === 61) return this.finishOp(tt.assign, 2) - return this.finishOp(code === 124 ? tt.bitwiseOR : tt.bitwiseAND, 1) -} + var next = this.input.charCodeAt(this.pos + 1); + if (next === code) { return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2) } + if (next === 61) { return this.finishOp(types.assign, 2) } + return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1) +}; pp$8.readToken_caret = function() { // '^' - var next = this.input.charCodeAt(this.pos + 1) - if (next === 61) return this.finishOp(tt.assign, 2) - return this.finishOp(tt.bitwiseXOR, 1) -} + var next = this.input.charCodeAt(this.pos + 1); + if (next === 61) { return this.finishOp(types.assign, 2) } + return this.finishOp(types.bitwiseXOR, 1) +}; pp$8.readToken_plus_min = function(code) { // '+-' - var next = this.input.charCodeAt(this.pos + 1) + var next = this.input.charCodeAt(this.pos + 1); if (next === code) { if (next == 45 && this.input.charCodeAt(this.pos + 2) == 62 && - lineBreak.test(this.input.slice(this.lastTokEnd, this.pos))) { + (this.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.lastTokEnd, this.pos)))) { // A `-->` line comment - this.skipLineComment(3) - this.skipSpace() + this.skipLineComment(3); + this.skipSpace(); return this.nextToken() } - return this.finishOp(tt.incDec, 2) + return this.finishOp(types.incDec, 2) } - if (next === 61) return this.finishOp(tt.assign, 2) - return this.finishOp(tt.plusMin, 1) -} + if (next === 61) { return this.finishOp(types.assign, 2) } + return this.finishOp(types.plusMin, 1) +}; pp$8.readToken_lt_gt = function(code) { // '<>' - var next = this.input.charCodeAt(this.pos + 1) - var size = 1 + var next = this.input.charCodeAt(this.pos + 1); + var size = 1; if (next === code) { - size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2 - if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(tt.assign, size + 1) - return this.finishOp(tt.bitShift, size) + size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2; + if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types.assign, size + 1) } + return this.finishOp(types.bitShift, size) } if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 && this.input.charCodeAt(this.pos + 3) == 45) { - if (this.inModule) this.unexpected() + if (this.inModule) { this.unexpected(); } // `` line comment - this.skipLineComment(3) - this.skipSpace() + this.skipLineComment(3); + this.skipSpace(); return this.nextToken() } - return this.finishOp(tt.incDec, 2) + return this.finishOp(types.incDec, 2) } - if (next === 61) return this.finishOp(tt.assign, 2) - return this.finishOp(tt.plusMin, 1) -} + if (next === 61) { return this.finishOp(types.assign, 2) } + return this.finishOp(types.plusMin, 1) +}; pp$8.readToken_lt_gt = function(code) { // '<>' - var next = this.input.charCodeAt(this.pos + 1) - var size = 1 + var next = this.input.charCodeAt(this.pos + 1); + var size = 1; if (next === code) { - size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2 - if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(tt.assign, size + 1) - return this.finishOp(tt.bitShift, size) + size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2; + if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types.assign, size + 1) } + return this.finishOp(types.bitShift, size) } if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 && this.input.charCodeAt(this.pos + 3) == 45) { - if (this.inModule) this.unexpected() + if (this.inModule) { this.unexpected(); } // `` line comment - this.skipLineComment(3) - this.skipSpace() - return this.nextToken() - } - return this.finishOp(tt.incDec, 2) - } - if (next === 61) return this.finishOp(tt.assign, 2) - return this.finishOp(tt.plusMin, 1) -} - -pp.readToken_lt_gt = function(code) { // '<>' - let next = this.input.charCodeAt(this.pos + 1) - let size = 1 - if (next === code) { - size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2 - if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(tt.assign, size + 1) - return this.finishOp(tt.bitShift, size) - } - if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 && - this.input.charCodeAt(this.pos + 3) == 45) { - if (this.inModule) this.unexpected() - // `