diff options
author | Florian Dold <florian.dold@gmail.com> | 2019-03-27 21:01:33 +0100 |
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committer | Florian Dold <florian.dold@gmail.com> | 2019-03-27 21:01:33 +0100 |
commit | cc97a4dd2a967e1c2273bd5f4c5f49a5bf2e2585 (patch) | |
tree | 92c5d88706a6ffc654d1b133618d357890e7096b /node_modules/uglify-js/lib/ast.js | |
parent | 3771b4d6b67b34c130f3a9a1a15f42deefdb2eda (diff) |
remove node_modules
Diffstat (limited to 'node_modules/uglify-js/lib/ast.js')
-rw-r--r-- | node_modules/uglify-js/lib/ast.js | 951 |
1 files changed, 0 insertions, 951 deletions
diff --git a/node_modules/uglify-js/lib/ast.js b/node_modules/uglify-js/lib/ast.js deleted file mode 100644 index 09c29b416..000000000 --- a/node_modules/uglify-js/lib/ast.js +++ /dev/null @@ -1,951 +0,0 @@ -/*********************************************************************** - - A JavaScript tokenizer / parser / beautifier / compressor. - https://github.com/mishoo/UglifyJS2 - - -------------------------------- (C) --------------------------------- - - Author: Mihai Bazon - <mihai.bazon@gmail.com> - http://mihai.bazon.net/blog - - Distributed under the BSD license: - - Copyright 2012 (c) Mihai Bazon <mihai.bazon@gmail.com> - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - - * Redistributions of source code must retain the above - copyright notice, this list of conditions and the following - disclaimer. - - * Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the following - disclaimer in the documentation and/or other materials - provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY - EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE - LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, - OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR - TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF - THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - SUCH DAMAGE. - - ***********************************************************************/ - -"use strict"; - -function DEFNODE(type, props, methods, base) { - if (typeof base === "undefined") base = AST_Node; - props = props ? props.split(/\s+/) : []; - var self_props = props; - if (base && base.PROPS) props = props.concat(base.PROPS); - var code = [ - "return function AST_", type, "(props){", - "if(props){", - ]; - props.forEach(function(prop) { - code.push("this.", prop, "=props.", prop, ";"); - }); - var proto = base && new base; - if (proto && proto.initialize || methods && methods.initialize) code.push("this.initialize();"); - code.push("}}"); - var ctor = new Function(code.join(""))(); - if (proto) { - ctor.prototype = proto; - ctor.BASE = base; - } - if (base) base.SUBCLASSES.push(ctor); - ctor.prototype.CTOR = ctor; - ctor.PROPS = props || null; - ctor.SELF_PROPS = self_props; - ctor.SUBCLASSES = []; - if (type) { - ctor.prototype.TYPE = ctor.TYPE = type; - } - if (methods) for (var name in methods) if (HOP(methods, name)) { - if (/^\$/.test(name)) { - ctor[name.substr(1)] = methods[name]; - } else { - ctor.prototype[name] = methods[name]; - } - } - ctor.DEFMETHOD = function(name, method) { - this.prototype[name] = method; - }; - if (typeof exports !== "undefined") { - exports["AST_" + type] = ctor; - } - return ctor; -} - -var AST_Token = DEFNODE("Token", "type value line col pos endline endcol endpos nlb comments_before comments_after file raw", { -}, null); - -var AST_Node = DEFNODE("Node", "start end", { - _clone: function(deep) { - if (deep) { - var self = this.clone(); - return self.transform(new TreeTransformer(function(node) { - if (node !== self) { - return node.clone(true); - } - })); - } - return new this.CTOR(this); - }, - clone: function(deep) { - return this._clone(deep); - }, - $documentation: "Base class of all AST nodes", - $propdoc: { - start: "[AST_Token] The first token of this node", - end: "[AST_Token] The last token of this node" - }, - _walk: function(visitor) { - return visitor._visit(this); - }, - walk: function(visitor) { - return this._walk(visitor); // not sure the indirection will be any help - } -}, null); - -AST_Node.warn = function(txt, props) { - if (AST_Node.warn_function) AST_Node.warn_function(string_template(txt, props)); -}; - -/* -----[ statements ]----- */ - -var AST_Statement = DEFNODE("Statement", null, { - $documentation: "Base class of all statements", -}); - -var AST_Debugger = DEFNODE("Debugger", null, { - $documentation: "Represents a debugger statement", -}, AST_Statement); - -var AST_Directive = DEFNODE("Directive", "value quote", { - $documentation: "Represents a directive, like \"use strict\";", - $propdoc: { - value: "[string] The value of this directive as a plain string (it's not an AST_String!)", - quote: "[string] the original quote character" - }, -}, AST_Statement); - -var AST_SimpleStatement = DEFNODE("SimpleStatement", "body", { - $documentation: "A statement consisting of an expression, i.e. a = 1 + 2", - $propdoc: { - body: "[AST_Node] an expression node (should not be instanceof AST_Statement)" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.body._walk(visitor); - }); - } -}, AST_Statement); - -function walk_body(node, visitor) { - var body = node.body; - if (body instanceof AST_Statement) { - body._walk(visitor); - } else body.forEach(function(node) { - node._walk(visitor); - }); -} - -var AST_Block = DEFNODE("Block", "body", { - $documentation: "A body of statements (usually braced)", - $propdoc: { - body: "[AST_Statement*] an array of statements" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - walk_body(this, visitor); - }); - } -}, AST_Statement); - -var AST_BlockStatement = DEFNODE("BlockStatement", null, { - $documentation: "A block statement", -}, AST_Block); - -var AST_EmptyStatement = DEFNODE("EmptyStatement", null, { - $documentation: "The empty statement (empty block or simply a semicolon)" -}, AST_Statement); - -var AST_StatementWithBody = DEFNODE("StatementWithBody", "body", { - $documentation: "Base class for all statements that contain one nested body: `For`, `ForIn`, `Do`, `While`, `With`", - $propdoc: { - body: "[AST_Statement] the body; this should always be present, even if it's an AST_EmptyStatement" - } -}, AST_Statement); - -var AST_LabeledStatement = DEFNODE("LabeledStatement", "label", { - $documentation: "Statement with a label", - $propdoc: { - label: "[AST_Label] a label definition" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.label._walk(visitor); - this.body._walk(visitor); - }); - }, - clone: function(deep) { - var node = this._clone(deep); - if (deep) { - var label = node.label; - var def = this.label; - node.walk(new TreeWalker(function(node) { - if (node instanceof AST_LoopControl && node.label && node.label.thedef === def) { - node.label.thedef = label; - label.references.push(node); - } - })); - } - return node; - } -}, AST_StatementWithBody); - -var AST_IterationStatement = DEFNODE("IterationStatement", null, { - $documentation: "Internal class. All loops inherit from it." -}, AST_StatementWithBody); - -var AST_DWLoop = DEFNODE("DWLoop", "condition", { - $documentation: "Base class for do/while statements", - $propdoc: { - condition: "[AST_Node] the loop condition. Should not be instanceof AST_Statement" - } -}, AST_IterationStatement); - -var AST_Do = DEFNODE("Do", null, { - $documentation: "A `do` statement", - _walk: function(visitor) { - return visitor._visit(this, function() { - this.body._walk(visitor); - this.condition._walk(visitor); - }); - } -}, AST_DWLoop); - -var AST_While = DEFNODE("While", null, { - $documentation: "A `while` statement", - _walk: function(visitor) { - return visitor._visit(this, function() { - this.condition._walk(visitor); - this.body._walk(visitor); - }); - } -}, AST_DWLoop); - -var AST_For = DEFNODE("For", "init condition step", { - $documentation: "A `for` statement", - $propdoc: { - init: "[AST_Node?] the `for` initialization code, or null if empty", - condition: "[AST_Node?] the `for` termination clause, or null if empty", - step: "[AST_Node?] the `for` update clause, or null if empty" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - if (this.init) this.init._walk(visitor); - if (this.condition) this.condition._walk(visitor); - if (this.step) this.step._walk(visitor); - this.body._walk(visitor); - }); - } -}, AST_IterationStatement); - -var AST_ForIn = DEFNODE("ForIn", "init object", { - $documentation: "A `for ... in` statement", - $propdoc: { - init: "[AST_Node] the `for/in` initialization code", - object: "[AST_Node] the object that we're looping through" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.init._walk(visitor); - this.object._walk(visitor); - this.body._walk(visitor); - }); - } -}, AST_IterationStatement); - -var AST_With = DEFNODE("With", "expression", { - $documentation: "A `with` statement", - $propdoc: { - expression: "[AST_Node] the `with` expression" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.expression._walk(visitor); - this.body._walk(visitor); - }); - } -}, AST_StatementWithBody); - -/* -----[ scope and functions ]----- */ - -var AST_Scope = DEFNODE("Scope", "variables functions uses_with uses_eval parent_scope enclosed cname", { - $documentation: "Base class for all statements introducing a lexical scope", - $propdoc: { - variables: "[Object/S] a map of name -> SymbolDef for all variables/functions defined in this scope", - functions: "[Object/S] like `variables`, but only lists function declarations", - uses_with: "[boolean/S] tells whether this scope uses the `with` statement", - uses_eval: "[boolean/S] tells whether this scope contains a direct call to the global `eval`", - parent_scope: "[AST_Scope?/S] link to the parent scope", - enclosed: "[SymbolDef*/S] a list of all symbol definitions that are accessed from this scope or any subscopes", - cname: "[integer/S] current index for mangling variables (used internally by the mangler)", - }, - clone: function(deep) { - var node = this._clone(deep); - if (this.variables) node.variables = this.variables.clone(); - if (this.functions) node.functions = this.functions.clone(); - if (this.enclosed) node.enclosed = this.enclosed.slice(); - return node; - }, - pinned: function() { - return this.uses_eval || this.uses_with; - } -}, AST_Block); - -var AST_Toplevel = DEFNODE("Toplevel", "globals", { - $documentation: "The toplevel scope", - $propdoc: { - globals: "[Object/S] a map of name -> SymbolDef for all undeclared names", - }, - wrap_commonjs: function(name) { - var body = this.body; - var wrapped_tl = "(function(exports){'$ORIG';})(typeof " + name + "=='undefined'?(" + name + "={}):" + name + ");"; - wrapped_tl = parse(wrapped_tl); - wrapped_tl = wrapped_tl.transform(new TreeTransformer(function(node) { - if (node instanceof AST_Directive && node.value == "$ORIG") { - return MAP.splice(body); - } - })); - return wrapped_tl; - }, - wrap_enclose: function(args_values) { - if (typeof args_values != "string") args_values = ""; - var index = args_values.indexOf(":"); - if (index < 0) index = args_values.length; - var body = this.body; - return parse([ - "(function(", - args_values.slice(0, index), - '){"$ORIG"})(', - args_values.slice(index + 1), - ")" - ].join("")).transform(new TreeTransformer(function(node) { - if (node instanceof AST_Directive && node.value == "$ORIG") { - return MAP.splice(body); - } - })); - } -}, AST_Scope); - -var AST_Lambda = DEFNODE("Lambda", "name argnames uses_arguments", { - $documentation: "Base class for functions", - $propdoc: { - name: "[AST_SymbolDeclaration?] the name of this function", - argnames: "[AST_SymbolFunarg*] array of function arguments", - uses_arguments: "[boolean/S] tells whether this function accesses the arguments array" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - if (this.name) this.name._walk(visitor); - this.argnames.forEach(function(argname) { - argname._walk(visitor); - }); - walk_body(this, visitor); - }); - } -}, AST_Scope); - -var AST_Accessor = DEFNODE("Accessor", null, { - $documentation: "A setter/getter function. The `name` property is always null." -}, AST_Lambda); - -var AST_Function = DEFNODE("Function", "inlined", { - $documentation: "A function expression" -}, AST_Lambda); - -var AST_Defun = DEFNODE("Defun", "inlined", { - $documentation: "A function definition" -}, AST_Lambda); - -/* -----[ JUMPS ]----- */ - -var AST_Jump = DEFNODE("Jump", null, { - $documentation: "Base class for “jumps” (for now that's `return`, `throw`, `break` and `continue`)" -}, AST_Statement); - -var AST_Exit = DEFNODE("Exit", "value", { - $documentation: "Base class for “exits” (`return` and `throw`)", - $propdoc: { - value: "[AST_Node?] the value returned or thrown by this statement; could be null for AST_Return" - }, - _walk: function(visitor) { - return visitor._visit(this, this.value && function() { - this.value._walk(visitor); - }); - } -}, AST_Jump); - -var AST_Return = DEFNODE("Return", null, { - $documentation: "A `return` statement" -}, AST_Exit); - -var AST_Throw = DEFNODE("Throw", null, { - $documentation: "A `throw` statement" -}, AST_Exit); - -var AST_LoopControl = DEFNODE("LoopControl", "label", { - $documentation: "Base class for loop control statements (`break` and `continue`)", - $propdoc: { - label: "[AST_LabelRef?] the label, or null if none", - }, - _walk: function(visitor) { - return visitor._visit(this, this.label && function() { - this.label._walk(visitor); - }); - } -}, AST_Jump); - -var AST_Break = DEFNODE("Break", null, { - $documentation: "A `break` statement" -}, AST_LoopControl); - -var AST_Continue = DEFNODE("Continue", null, { - $documentation: "A `continue` statement" -}, AST_LoopControl); - -/* -----[ IF ]----- */ - -var AST_If = DEFNODE("If", "condition alternative", { - $documentation: "A `if` statement", - $propdoc: { - condition: "[AST_Node] the `if` condition", - alternative: "[AST_Statement?] the `else` part, or null if not present" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.condition._walk(visitor); - this.body._walk(visitor); - if (this.alternative) this.alternative._walk(visitor); - }); - } -}, AST_StatementWithBody); - -/* -----[ SWITCH ]----- */ - -var AST_Switch = DEFNODE("Switch", "expression", { - $documentation: "A `switch` statement", - $propdoc: { - expression: "[AST_Node] the `switch` “discriminant”" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.expression._walk(visitor); - walk_body(this, visitor); - }); - } -}, AST_Block); - -var AST_SwitchBranch = DEFNODE("SwitchBranch", null, { - $documentation: "Base class for `switch` branches", -}, AST_Block); - -var AST_Default = DEFNODE("Default", null, { - $documentation: "A `default` switch branch", -}, AST_SwitchBranch); - -var AST_Case = DEFNODE("Case", "expression", { - $documentation: "A `case` switch branch", - $propdoc: { - expression: "[AST_Node] the `case` expression" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.expression._walk(visitor); - walk_body(this, visitor); - }); - } -}, AST_SwitchBranch); - -/* -----[ EXCEPTIONS ]----- */ - -var AST_Try = DEFNODE("Try", "bcatch bfinally", { - $documentation: "A `try` statement", - $propdoc: { - bcatch: "[AST_Catch?] the catch block, or null if not present", - bfinally: "[AST_Finally?] the finally block, or null if not present" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - walk_body(this, visitor); - if (this.bcatch) this.bcatch._walk(visitor); - if (this.bfinally) this.bfinally._walk(visitor); - }); - } -}, AST_Block); - -var AST_Catch = DEFNODE("Catch", "argname", { - $documentation: "A `catch` node; only makes sense as part of a `try` statement", - $propdoc: { - argname: "[AST_SymbolCatch] symbol for the exception" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.argname._walk(visitor); - walk_body(this, visitor); - }); - } -}, AST_Block); - -var AST_Finally = DEFNODE("Finally", null, { - $documentation: "A `finally` node; only makes sense as part of a `try` statement" -}, AST_Block); - -/* -----[ VAR ]----- */ - -var AST_Definitions = DEFNODE("Definitions", "definitions", { - $documentation: "Base class for `var` nodes (variable declarations/initializations)", - $propdoc: { - definitions: "[AST_VarDef*] array of variable definitions" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.definitions.forEach(function(defn) { - defn._walk(visitor); - }); - }); - } -}, AST_Statement); - -var AST_Var = DEFNODE("Var", null, { - $documentation: "A `var` statement" -}, AST_Definitions); - -var AST_VarDef = DEFNODE("VarDef", "name value", { - $documentation: "A variable declaration; only appears in a AST_Definitions node", - $propdoc: { - name: "[AST_SymbolVar] name of the variable", - value: "[AST_Node?] initializer, or null of there's no initializer" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.name._walk(visitor); - if (this.value) this.value._walk(visitor); - }); - } -}); - -/* -----[ OTHER ]----- */ - -var AST_Call = DEFNODE("Call", "expression args", { - $documentation: "A function call expression", - $propdoc: { - expression: "[AST_Node] expression to invoke as function", - args: "[AST_Node*] array of arguments" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.expression._walk(visitor); - this.args.forEach(function(node) { - node._walk(visitor); - }); - }); - } -}); - -var AST_New = DEFNODE("New", null, { - $documentation: "An object instantiation. Derives from a function call since it has exactly the same properties" -}, AST_Call); - -var AST_Sequence = DEFNODE("Sequence", "expressions", { - $documentation: "A sequence expression (comma-separated expressions)", - $propdoc: { - expressions: "[AST_Node*] array of expressions (at least two)" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.expressions.forEach(function(node) { - node._walk(visitor); - }); - }); - } -}); - -var AST_PropAccess = DEFNODE("PropAccess", "expression property", { - $documentation: "Base class for property access expressions, i.e. `a.foo` or `a[\"foo\"]`", - $propdoc: { - expression: "[AST_Node] the “container” expression", - property: "[AST_Node|string] the property to access. For AST_Dot this is always a plain string, while for AST_Sub it's an arbitrary AST_Node" - } -}); - -var AST_Dot = DEFNODE("Dot", null, { - $documentation: "A dotted property access expression", - _walk: function(visitor) { - return visitor._visit(this, function() { - this.expression._walk(visitor); - }); - } -}, AST_PropAccess); - -var AST_Sub = DEFNODE("Sub", null, { - $documentation: "Index-style property access, i.e. `a[\"foo\"]`", - _walk: function(visitor) { - return visitor._visit(this, function() { - this.expression._walk(visitor); - this.property._walk(visitor); - }); - } -}, AST_PropAccess); - -var AST_Unary = DEFNODE("Unary", "operator expression", { - $documentation: "Base class for unary expressions", - $propdoc: { - operator: "[string] the operator", - expression: "[AST_Node] expression that this unary operator applies to" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.expression._walk(visitor); - }); - } -}); - -var AST_UnaryPrefix = DEFNODE("UnaryPrefix", null, { - $documentation: "Unary prefix expression, i.e. `typeof i` or `++i`" -}, AST_Unary); - -var AST_UnaryPostfix = DEFNODE("UnaryPostfix", null, { - $documentation: "Unary postfix expression, i.e. `i++`" -}, AST_Unary); - -var AST_Binary = DEFNODE("Binary", "operator left right", { - $documentation: "Binary expression, i.e. `a + b`", - $propdoc: { - left: "[AST_Node] left-hand side expression", - operator: "[string] the operator", - right: "[AST_Node] right-hand side expression" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.left._walk(visitor); - this.right._walk(visitor); - }); - } -}); - -var AST_Conditional = DEFNODE("Conditional", "condition consequent alternative", { - $documentation: "Conditional expression using the ternary operator, i.e. `a ? b : c`", - $propdoc: { - condition: "[AST_Node]", - consequent: "[AST_Node]", - alternative: "[AST_Node]" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.condition._walk(visitor); - this.consequent._walk(visitor); - this.alternative._walk(visitor); - }); - } -}); - -var AST_Assign = DEFNODE("Assign", null, { - $documentation: "An assignment expression — `a = b + 5`", -}, AST_Binary); - -/* -----[ LITERALS ]----- */ - -var AST_Array = DEFNODE("Array", "elements", { - $documentation: "An array literal", - $propdoc: { - elements: "[AST_Node*] array of elements" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.elements.forEach(function(element) { - element._walk(visitor); - }); - }); - } -}); - -var AST_Object = DEFNODE("Object", "properties", { - $documentation: "An object literal", - $propdoc: { - properties: "[AST_ObjectProperty*] array of properties" - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.properties.forEach(function(prop) { - prop._walk(visitor); - }); - }); - } -}); - -var AST_ObjectProperty = DEFNODE("ObjectProperty", "key value", { - $documentation: "Base class for literal object properties", - $propdoc: { - key: "[string|AST_SymbolAccessor] property name. For ObjectKeyVal this is a string. For getters and setters this is an AST_SymbolAccessor.", - value: "[AST_Node] property value. For getters and setters this is an AST_Accessor." - }, - _walk: function(visitor) { - return visitor._visit(this, function() { - this.value._walk(visitor); - }); - } -}); - -var AST_ObjectKeyVal = DEFNODE("ObjectKeyVal", "quote", { - $documentation: "A key: value object property", - $propdoc: { - quote: "[string] the original quote character" - } -}, AST_ObjectProperty); - -var AST_ObjectSetter = DEFNODE("ObjectSetter", null, { - $documentation: "An object setter property", -}, AST_ObjectProperty); - -var AST_ObjectGetter = DEFNODE("ObjectGetter", null, { - $documentation: "An object getter property", -}, AST_ObjectProperty); - -var AST_Symbol = DEFNODE("Symbol", "scope name thedef", { - $propdoc: { - name: "[string] name of this symbol", - scope: "[AST_Scope/S] the current scope (not necessarily the definition scope)", - thedef: "[SymbolDef/S] the definition of this symbol" - }, - $documentation: "Base class for all symbols", -}); - -var AST_SymbolAccessor = DEFNODE("SymbolAccessor", null, { - $documentation: "The name of a property accessor (setter/getter function)" -}, AST_Symbol); - -var AST_SymbolDeclaration = DEFNODE("SymbolDeclaration", "init", { - $documentation: "A declaration symbol (symbol in var, function name or argument, symbol in catch)", -}, AST_Symbol); - -var AST_SymbolVar = DEFNODE("SymbolVar", null, { - $documentation: "Symbol defining a variable", -}, AST_SymbolDeclaration); - -var AST_SymbolFunarg = DEFNODE("SymbolFunarg", null, { - $documentation: "Symbol naming a function argument", -}, AST_SymbolVar); - -var AST_SymbolDefun = DEFNODE("SymbolDefun", null, { - $documentation: "Symbol defining a function", -}, AST_SymbolDeclaration); - -var AST_SymbolLambda = DEFNODE("SymbolLambda", null, { - $documentation: "Symbol naming a function expression", -}, AST_SymbolDeclaration); - -var AST_SymbolCatch = DEFNODE("SymbolCatch", null, { - $documentation: "Symbol naming the exception in catch", -}, AST_SymbolDeclaration); - -var AST_Label = DEFNODE("Label", "references", { - $documentation: "Symbol naming a label (declaration)", - $propdoc: { - references: "[AST_LoopControl*] a list of nodes referring to this label" - }, - initialize: function() { - this.references = []; - this.thedef = this; - } -}, AST_Symbol); - -var AST_SymbolRef = DEFNODE("SymbolRef", null, { - $documentation: "Reference to some symbol (not definition/declaration)", -}, AST_Symbol); - -var AST_LabelRef = DEFNODE("LabelRef", null, { - $documentation: "Reference to a label symbol", -}, AST_Symbol); - -var AST_This = DEFNODE("This", null, { - $documentation: "The `this` symbol", -}, AST_Symbol); - -var AST_Constant = DEFNODE("Constant", null, { - $documentation: "Base class for all constants", - getValue: function() { - return this.value; - } -}); - -var AST_String = DEFNODE("String", "value quote", { - $documentation: "A string literal", - $propdoc: { - value: "[string] the contents of this string", - quote: "[string] the original quote character" - } -}, AST_Constant); - -var AST_Number = DEFNODE("Number", "value literal", { - $documentation: "A number literal", - $propdoc: { - value: "[number] the numeric value", - literal: "[string] numeric value as string (optional)" - } -}, AST_Constant); - -var AST_RegExp = DEFNODE("RegExp", "value", { - $documentation: "A regexp literal", - $propdoc: { - value: "[RegExp] the actual regexp" - } -}, AST_Constant); - -var AST_Atom = DEFNODE("Atom", null, { - $documentation: "Base class for atoms", -}, AST_Constant); - -var AST_Null = DEFNODE("Null", null, { - $documentation: "The `null` atom", - value: null -}, AST_Atom); - -var AST_NaN = DEFNODE("NaN", null, { - $documentation: "The impossible value", - value: 0/0 -}, AST_Atom); - -var AST_Undefined = DEFNODE("Undefined", null, { - $documentation: "The `undefined` value", - value: function(){}() -}, AST_Atom); - -var AST_Hole = DEFNODE("Hole", null, { - $documentation: "A hole in an array", - value: function(){}() -}, AST_Atom); - -var AST_Infinity = DEFNODE("Infinity", null, { - $documentation: "The `Infinity` value", - value: 1/0 -}, AST_Atom); - -var AST_Boolean = DEFNODE("Boolean", null, { - $documentation: "Base class for booleans", -}, AST_Atom); - -var AST_False = DEFNODE("False", null, { - $documentation: "The `false` atom", - value: false -}, AST_Boolean); - -var AST_True = DEFNODE("True", null, { - $documentation: "The `true` atom", - value: true -}, AST_Boolean); - -/* -----[ TreeWalker ]----- */ - -function TreeWalker(callback) { - this.visit = callback; - this.stack = []; - this.directives = Object.create(null); -} -TreeWalker.prototype = { - _visit: function(node, descend) { - this.push(node); - var ret = this.visit(node, descend ? function() { - descend.call(node); - } : noop); - if (!ret && descend) { - descend.call(node); - } - this.pop(); - return ret; - }, - parent: function(n) { - return this.stack[this.stack.length - 2 - (n || 0)]; - }, - push: function(node) { - if (node instanceof AST_Lambda) { - this.directives = Object.create(this.directives); - } else if (node instanceof AST_Directive && !this.directives[node.value]) { - this.directives[node.value] = node; - } - this.stack.push(node); - }, - pop: function() { - if (this.stack.pop() instanceof AST_Lambda) { - this.directives = Object.getPrototypeOf(this.directives); - } - }, - self: function() { - return this.stack[this.stack.length - 1]; - }, - find_parent: function(type) { - var stack = this.stack; - for (var i = stack.length; --i >= 0;) { - var x = stack[i]; - if (x instanceof type) return x; - } - }, - has_directive: function(type) { - var dir = this.directives[type]; - if (dir) return dir; - var node = this.stack[this.stack.length - 1]; - if (node instanceof AST_Scope) { - for (var i = 0; i < node.body.length; ++i) { - var st = node.body[i]; - if (!(st instanceof AST_Directive)) break; - if (st.value == type) return st; - } - } - }, - loopcontrol_target: function(node) { - var stack = this.stack; - if (node.label) for (var i = stack.length; --i >= 0;) { - var x = stack[i]; - if (x instanceof AST_LabeledStatement && x.label.name == node.label.name) - return x.body; - } else for (var i = stack.length; --i >= 0;) { - var x = stack[i]; - if (x instanceof AST_IterationStatement - || node instanceof AST_Break && x instanceof AST_Switch) - return x; - } - }, - in_boolean_context: function() { - var self = this.self(); - for (var i = 0, p; p = this.parent(i); i++) { - if (p instanceof AST_SimpleStatement - || p instanceof AST_Conditional && p.condition === self - || p instanceof AST_DWLoop && p.condition === self - || p instanceof AST_For && p.condition === self - || p instanceof AST_If && p.condition === self - || p instanceof AST_UnaryPrefix && p.operator == "!" && p.expression === self) { - return true; - } - if (p instanceof AST_Binary && (p.operator == "&&" || p.operator == "||") - || p instanceof AST_Conditional - || p.tail_node() === self) { - self = p; - } else { - return false; - } - } - } -}; |