(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}(g.acorn || (g.acorn = {})).loose = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o= 6) return expr; default: return this.dummyIdent(); } }; lp.parseExpression = function (noIn) { var start = this.storeCurrentPos(); var expr = this.parseMaybeAssign(noIn); if (this.tok.type === tt.comma) { var node = this.startNodeAt(start); node.expressions = [expr]; while (this.eat(tt.comma)) node.expressions.push(this.parseMaybeAssign(noIn)); return this.finishNode(node, "SequenceExpression"); } return expr; }; lp.parseParenExpression = function () { this.pushCx(); this.expect(tt.parenL); var val = this.parseExpression(); this.popCx(); this.expect(tt.parenR); return val; }; lp.parseMaybeAssign = function (noIn) { var start = this.storeCurrentPos(); var left = this.parseMaybeConditional(noIn); if (this.tok.type.isAssign) { var node = this.startNodeAt(start); node.operator = this.tok.value; node.left = this.tok.type === tt.eq ? this.toAssignable(left) : this.checkLVal(left); this.next(); node.right = this.parseMaybeAssign(noIn); return this.finishNode(node, "AssignmentExpression"); } return left; }; lp.parseMaybeConditional = function (noIn) { var start = this.storeCurrentPos(); var expr = this.parseExprOps(noIn); if (this.eat(tt.question)) { var node = this.startNodeAt(start); node.test = expr; node.consequent = this.parseMaybeAssign(); node.alternate = this.expect(tt.colon) ? this.parseMaybeAssign(noIn) : this.dummyIdent(); return this.finishNode(node, "ConditionalExpression"); } return expr; }; lp.parseExprOps = function (noIn) { var start = this.storeCurrentPos(); var indent = this.curIndent, line = this.curLineStart; return this.parseExprOp(this.parseMaybeUnary(noIn), start, -1, noIn, indent, line); }; lp.parseExprOp = function (left, start, minPrec, noIn, indent, line) { if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) return left; var prec = this.tok.type.binop; if (prec != null && (!noIn || this.tok.type !== tt._in)) { if (prec > minPrec) { var node = this.startNodeAt(start); node.left = left; node.operator = this.tok.value; this.next(); if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) { node.right = this.dummyIdent(); } else { var rightStart = this.storeCurrentPos(); node.right = this.parseExprOp(this.parseMaybeUnary(noIn), rightStart, prec, noIn, indent, line); } this.finishNode(node, /&&|\|\|/.test(node.operator) ? "LogicalExpression" : "BinaryExpression"); return this.parseExprOp(node, start, minPrec, noIn, indent, line); } } return left; }; lp.parseMaybeUnary = function (noIn) { if (this.tok.type.prefix) { var node = this.startNode(), update = this.tok.type === tt.incDec; node.operator = this.tok.value; node.prefix = true; this.next(); node.argument = this.parseMaybeUnary(noIn); if (update) node.argument = this.checkLVal(node.argument); return this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression"); } else if (this.tok.type === tt.ellipsis) { var node = this.startNode(); this.next(); node.argument = this.parseMaybeUnary(noIn); return this.finishNode(node, "SpreadElement"); } var start = this.storeCurrentPos(); var expr = this.parseExprSubscripts(); while (this.tok.type.postfix && !this.canInsertSemicolon()) { var node = this.startNodeAt(start); node.operator = this.tok.value; node.prefix = false; node.argument = this.checkLVal(expr); this.next(); expr = this.finishNode(node, "UpdateExpression"); } return expr; }; lp.parseExprSubscripts = function () { var start = this.storeCurrentPos(); return this.parseSubscripts(this.parseExprAtom(), start, false, this.curIndent, this.curLineStart); }; lp.parseSubscripts = function (base, start, noCalls, startIndent, line) { for (;;) { if (this.curLineStart != line && this.curIndent <= startIndent && this.tokenStartsLine()) { if (this.tok.type == tt.dot && this.curIndent == startIndent) --startIndent;else return base; } if (this.eat(tt.dot)) { var node = this.startNodeAt(start); node.object = base; if (this.curLineStart != line && this.curIndent <= startIndent && this.tokenStartsLine()) node.property = this.dummyIdent();else node.property = this.parsePropertyAccessor() || this.dummyIdent(); node.computed = false; base = this.finishNode(node, "MemberExpression"); } else if (this.tok.type == tt.bracketL) { this.pushCx(); this.next(); var node = this.startNodeAt(start); node.object = base; node.property = this.parseExpression(); node.computed = true; this.popCx(); this.expect(tt.bracketR); base = this.finishNode(node, "MemberExpression"); } else if (!noCalls && this.tok.type == tt.parenL) { var node = this.startNodeAt(start); node.callee = base; node.arguments = this.parseExprList(tt.parenR); base = this.finishNode(node, "CallExpression"); } else if (this.tok.type == tt.backQuote) { var node = this.startNodeAt(start); node.tag = base; node.quasi = this.parseTemplate(); base = this.finishNode(node, "TaggedTemplateExpression"); } else { return base; } } }; lp.parseExprAtom = function () { var node = undefined; switch (this.tok.type) { case tt._this: case tt._super: var type = this.tok.type === tt._this ? "ThisExpression" : "Super"; node = this.startNode(); this.next(); return this.finishNode(node, type); case tt.name: var start = this.storeCurrentPos(); var id = this.parseIdent(); return this.eat(tt.arrow) ? this.parseArrowExpression(this.startNodeAt(start), [id]) : id; case tt.regexp: node = this.startNode(); var val = this.tok.value; node.regex = { pattern: val.pattern, flags: val.flags }; node.value = val.value; node.raw = this.input.slice(this.tok.start, this.tok.end); this.next(); return this.finishNode(node, "Literal"); case tt.num:case tt.string: node = this.startNode(); node.value = this.tok.value; node.raw = this.input.slice(this.tok.start, this.tok.end); this.next(); return this.finishNode(node, "Literal"); case tt._null:case tt._true:case tt._false: node = this.startNode(); node.value = this.tok.type === tt._null ? null : this.tok.type === tt._true; node.raw = this.tok.type.keyword; this.next(); return this.finishNode(node, "Literal"); case tt.parenL: var parenStart = this.storeCurrentPos(); this.next(); var inner = this.parseExpression(); this.expect(tt.parenR); if (this.eat(tt.arrow)) { return this.parseArrowExpression(this.startNodeAt(parenStart), inner.expressions || (isDummy(inner) ? [] : [inner])); } if (this.options.preserveParens) { var par = this.startNodeAt(parenStart); par.expression = inner; inner = this.finishNode(par, "ParenthesizedExpression"); } return inner; case tt.bracketL: node = this.startNode(); node.elements = this.parseExprList(tt.bracketR, true); return this.finishNode(node, "ArrayExpression"); case tt.braceL: return this.parseObj(); case tt._class: return this.parseClass(); case tt._function: node = this.startNode(); this.next(); return this.parseFunction(node, false); case tt._new: return this.parseNew(); case tt._yield: node = this.startNode(); this.next(); if (this.semicolon() || this.canInsertSemicolon() || this.tok.type != tt.star && !this.tok.type.startsExpr) { node.delegate = false; node.argument = null; } else { node.delegate = this.eat(tt.star); node.argument = this.parseMaybeAssign(); } return this.finishNode(node, "YieldExpression"); case tt.backQuote: return this.parseTemplate(); default: return this.dummyIdent(); } }; lp.parseNew = function () { var node = this.startNode(), startIndent = this.curIndent, line = this.curLineStart; var meta = this.parseIdent(true); if (this.options.ecmaVersion >= 6 && this.eat(tt.dot)) { node.meta = meta; node.property = this.parseIdent(true); return this.finishNode(node, "MetaProperty"); } var start = this.storeCurrentPos(); node.callee = this.parseSubscripts(this.parseExprAtom(), start, true, startIndent, line); if (this.tok.type == tt.parenL) { node.arguments = this.parseExprList(tt.parenR); } else { node.arguments = []; } return this.finishNode(node, "NewExpression"); }; lp.parseTemplateElement = function () { var elem = this.startNode(); elem.value = { raw: this.input.slice(this.tok.start, this.tok.end), cooked: this.tok.value }; this.next(); elem.tail = this.tok.type === tt.backQuote; return this.finishNode(elem, "TemplateElement"); }; lp.parseTemplate = function () { var node = this.startNode(); this.next(); node.expressions = []; var curElt = this.parseTemplateElement(); node.quasis = [curElt]; while (!curElt.tail) { this.next(); node.expressions.push(this.parseExpression()); if (this.expect(tt.braceR)) { curElt = this.parseTemplateElement(); } else { curElt = this.startNode(); curElt.value = { cooked: "", raw: "" }; curElt.tail = true; } node.quasis.push(curElt); } this.expect(tt.backQuote); return this.finishNode(node, "TemplateLiteral"); }; lp.parseObj = function () { var node = this.startNode(); node.properties = []; this.pushCx(); var indent = this.curIndent + 1, line = this.curLineStart; this.eat(tt.braceL); if (this.curIndent + 1 < indent) { indent = this.curIndent;line = this.curLineStart; } while (!this.closes(tt.braceR, indent, line)) { var prop = this.startNode(), isGenerator = undefined, start = undefined; if (this.options.ecmaVersion >= 6) { start = this.storeCurrentPos(); prop.method = false; prop.shorthand = false; isGenerator = this.eat(tt.star); } this.parsePropertyName(prop); if (isDummy(prop.key)) { if (isDummy(this.parseMaybeAssign())) this.next();this.eat(tt.comma);continue; } if (this.eat(tt.colon)) { prop.kind = "init"; prop.value = this.parseMaybeAssign(); } else if (this.options.ecmaVersion >= 6 && (this.tok.type === tt.parenL || this.tok.type === tt.braceL)) { prop.kind = "init"; prop.method = true; prop.value = this.parseMethod(isGenerator); } else if (this.options.ecmaVersion >= 5 && prop.key.type === "Identifier" && !prop.computed && (prop.key.name === "get" || prop.key.name === "set") && (this.tok.type != tt.comma && this.tok.type != tt.braceR)) { prop.kind = prop.key.name; this.parsePropertyName(prop); prop.value = this.parseMethod(false); } else { prop.kind = "init"; if (this.options.ecmaVersion >= 6) { if (this.eat(tt.eq)) { var assign = this.startNodeAt(start); assign.operator = "="; assign.left = prop.key; assign.right = this.parseMaybeAssign(); prop.value = this.finishNode(assign, "AssignmentExpression"); } else { prop.value = prop.key; } } else { prop.value = this.dummyIdent(); } prop.shorthand = true; } node.properties.push(this.finishNode(prop, "Property")); this.eat(tt.comma); } this.popCx(); if (!this.eat(tt.braceR)) { // If there is no closing brace, make the node span to the start // of the next token (this is useful for Tern) this.last.end = this.tok.start; if (this.options.locations) this.last.loc.end = this.tok.loc.start; } return this.finishNode(node, "ObjectExpression"); }; lp.parsePropertyName = function (prop) { if (this.options.ecmaVersion >= 6) { if (this.eat(tt.bracketL)) { prop.computed = true; prop.key = this.parseExpression(); this.expect(tt.bracketR); return; } else { prop.computed = false; } } var key = this.tok.type === tt.num || this.tok.type === tt.string ? this.parseExprAtom() : this.parseIdent(); prop.key = key || this.dummyIdent(); }; lp.parsePropertyAccessor = function () { if (this.tok.type === tt.name || this.tok.type.keyword) return this.parseIdent(); }; lp.parseIdent = function () { var name = this.tok.type === tt.name ? this.tok.value : this.tok.type.keyword; if (!name) return this.dummyIdent(); var node = this.startNode(); this.next(); node.name = name; return this.finishNode(node, "Identifier"); }; lp.initFunction = function (node) { node.id = null; node.params = []; if (this.options.ecmaVersion >= 6) { node.generator = false; node.expression = false; } }; // Convert existing expression atom to assignable pattern // if possible. lp.toAssignable = function (node, binding) { if (this.options.ecmaVersion >= 6 && node) { switch (node.type) { case "ObjectExpression": node.type = "ObjectPattern"; var props = node.properties; for (var i = 0; i < props.length; i++) { this.toAssignable(props[i].value, binding); }break; case "ArrayExpression": node.type = "ArrayPattern"; this.toAssignableList(node.elements, binding); break; case "SpreadElement": node.type = "RestElement"; node.argument = this.toAssignable(node.argument, binding); break; case "AssignmentExpression": node.type = "AssignmentPattern"; break; } } return this.checkLVal(node, binding); }; lp.toAssignableList = function (exprList, binding) { for (var i = 0; i < exprList.length; i++) { exprList[i] = this.toAssignable(exprList[i], binding); }return exprList; }; lp.parseFunctionParams = function (params) { params = this.parseExprList(tt.parenR); return this.toAssignableList(params, true); }; lp.parseMethod = function (isGenerator) { var node = this.startNode(); this.initFunction(node); node.params = this.parseFunctionParams(); node.generator = isGenerator || false; node.expression = this.options.ecmaVersion >= 6 && this.tok.type !== tt.braceL; node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock(); return this.finishNode(node, "FunctionExpression"); }; lp.parseArrowExpression = function (node, params) { this.initFunction(node); node.params = this.toAssignableList(params, true); node.expression = this.tok.type !== tt.braceL; node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock(); return this.finishNode(node, "ArrowFunctionExpression"); }; lp.parseExprList = function (close, allowEmpty) { this.pushCx(); var indent = this.curIndent, line = this.curLineStart, elts = []; this.next(); // Opening bracket while (!this.closes(close, indent + 1, line)) { if (this.eat(tt.comma)) { elts.push(allowEmpty ? null : this.dummyIdent()); continue; } var elt = this.parseMaybeAssign(); if (isDummy(elt)) { if (this.closes(close, indent, line)) break; this.next(); } else { elts.push(elt); } this.eat(tt.comma); } this.popCx(); if (!this.eat(close)) { // If there is no closing brace, make the node span to the start // of the next token (this is useful for Tern) this.last.end = this.tok.start; if (this.options.locations) this.last.loc.end = this.tok.loc.start; } return elts; }; },{"..":2,"./parseutil":4,"./state":5}],4:[function(_dereq_,module,exports){ "use strict"; exports.isDummy = isDummy; exports.__esModule = true; var LooseParser = _dereq_("./state").LooseParser; var _ = _dereq_(".."); var Node = _.Node; var SourceLocation = _.SourceLocation; var lineBreak = _.lineBreak; var isNewLine = _.isNewLine; var tt = _.tokTypes; var lp = LooseParser.prototype; lp.startNode = function () { var node = new Node(); node.start = this.tok.start; if (this.options.locations) node.loc = new SourceLocation(this.toks, this.tok.loc.start); if (this.options.directSourceFile) node.sourceFile = this.options.directSourceFile; if (this.options.ranges) node.range = [this.tok.start, 0]; return node; }; lp.storeCurrentPos = function () { return this.options.locations ? [this.tok.start, this.tok.loc.start] : this.tok.start; }; lp.startNodeAt = function (pos) { var node = new Node(); if (this.options.locations) { node.start = pos[0]; node.loc = new SourceLocation(this.toks, pos[1]); pos = pos[0]; } else { node.start = pos; } if (this.options.directSourceFile) node.sourceFile = this.options.directSourceFile; if (this.options.ranges) node.range = [pos, 0]; return node; }; lp.finishNode = function (node, type) { node.type = type; node.end = this.last.end; if (this.options.locations) node.loc.end = this.last.loc.end; if (this.options.ranges) node.range[1] = this.last.end; return node; }; lp.dummyIdent = function () { var dummy = this.startNode(); dummy.name = "✖"; return this.finishNode(dummy, "Identifier"); }; function isDummy(node) { return node.name == "✖"; } lp.eat = function (type) { if (this.tok.type === type) { this.next(); return true; } else { return false; } }; lp.isContextual = function (name) { return this.tok.type === tt.name && this.tok.value === name; }; lp.eatContextual = function (name) { return this.tok.value === name && this.eat(tt.name); }; lp.canInsertSemicolon = function () { return this.tok.type === tt.eof || this.tok.type === tt.braceR || lineBreak.test(this.input.slice(this.last.end, this.tok.start)); }; lp.semicolon = function () { return this.eat(tt.semi); }; lp.expect = function (type) { if (this.eat(type)) return true; for (var i = 1; i <= 2; i++) { if (this.lookAhead(i).type == type) { for (var j = 0; j < i; j++) { this.next(); }return true; } } }; lp.pushCx = function () { this.context.push(this.curIndent); }; lp.popCx = function () { this.curIndent = this.context.pop(); }; lp.lineEnd = function (pos) { while (pos < this.input.length && !isNewLine(this.input.charCodeAt(pos))) ++pos; return pos; }; lp.indentationAfter = function (pos) { for (var count = 0;; ++pos) { var ch = this.input.charCodeAt(pos); if (ch === 32) ++count;else if (ch === 9) count += this.options.tabSize;else return count; } }; lp.closes = function (closeTok, indent, line, blockHeuristic) { if (this.tok.type === closeTok || this.tok.type === tt.eof) return true; return line != this.curLineStart && this.curIndent < indent && this.tokenStartsLine() && (!blockHeuristic || this.nextLineStart >= this.input.length || this.indentationAfter(this.nextLineStart) < indent); }; lp.tokenStartsLine = function () { for (var p = this.tok.start - 1; p >= this.curLineStart; --p) { var ch = this.input.charCodeAt(p); if (ch !== 9 && ch !== 32) return false; } return true; }; },{"..":2,"./state":5}],5:[function(_dereq_,module,exports){ "use strict"; exports.LooseParser = LooseParser; exports.__esModule = true; var _ = _dereq_(".."); var tokenizer = _.tokenizer; var SourceLocation = _.SourceLocation; var tt = _.tokTypes; function LooseParser(input, options) { this.toks = tokenizer(input, options); this.options = this.toks.options; this.input = this.toks.input; this.tok = this.last = { type: tt.eof, start: 0, end: 0 }; if (this.options.locations) { var here = this.toks.curPosition(); this.tok.loc = new SourceLocation(this.toks, here, here); } this.ahead = []; // Tokens ahead this.context = []; // Indentation contexted this.curIndent = 0; this.curLineStart = 0; this.nextLineStart = this.lineEnd(this.curLineStart) + 1; } },{"..":2}],6:[function(_dereq_,module,exports){ "use strict"; var LooseParser = _dereq_("./state").LooseParser; var isDummy = _dereq_("./parseutil").isDummy; var _ = _dereq_(".."); var getLineInfo = _.getLineInfo; var tt = _.tokTypes; var lp = LooseParser.prototype; lp.parseTopLevel = function () { var node = this.startNodeAt(this.options.locations ? [0, getLineInfo(this.input, 0)] : 0); node.body = []; while (this.tok.type !== tt.eof) node.body.push(this.parseStatement()); this.last = this.tok; if (this.options.ecmaVersion >= 6) { node.sourceType = this.options.sourceType; } return this.finishNode(node, "Program"); }; lp.parseStatement = function () { var starttype = this.tok.type, node = this.startNode(); switch (starttype) { case tt._break:case tt._continue: this.next(); var isBreak = starttype === tt._break; if (this.semicolon() || this.canInsertSemicolon()) { node.label = null; } else { node.label = this.tok.type === tt.name ? this.parseIdent() : null; this.semicolon(); } return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement"); case tt._debugger: this.next(); this.semicolon(); return this.finishNode(node, "DebuggerStatement"); case tt._do: this.next(); node.body = this.parseStatement(); node.test = this.eat(tt._while) ? this.parseParenExpression() : this.dummyIdent(); this.semicolon(); return this.finishNode(node, "DoWhileStatement"); case tt._for: this.next(); this.pushCx(); this.expect(tt.parenL); if (this.tok.type === tt.semi) return this.parseFor(node, null); if (this.tok.type === tt._var || this.tok.type === tt._let || this.tok.type === tt._const) { var _init = this.parseVar(true); if (_init.declarations.length === 1 && (this.tok.type === tt._in || this.isContextual("of"))) { return this.parseForIn(node, _init); } return this.parseFor(node, _init); } var init = this.parseExpression(true); if (this.tok.type === tt._in || this.isContextual("of")) return this.parseForIn(node, this.toAssignable(init)); return this.parseFor(node, init); case tt._function: this.next(); return this.parseFunction(node, true); case tt._if: this.next(); node.test = this.parseParenExpression(); node.consequent = this.parseStatement(); node.alternate = this.eat(tt._else) ? this.parseStatement() : null; return this.finishNode(node, "IfStatement"); case tt._return: this.next(); if (this.eat(tt.semi) || this.canInsertSemicolon()) node.argument = null;else { node.argument = this.parseExpression();this.semicolon(); } return this.finishNode(node, "ReturnStatement"); case tt._switch: var blockIndent = this.curIndent, line = this.curLineStart; this.next(); node.discriminant = this.parseParenExpression(); node.cases = []; this.pushCx(); this.expect(tt.braceL); var cur = undefined; while (!this.closes(tt.braceR, blockIndent, line, true)) { if (this.tok.type === tt._case || this.tok.type === tt._default) { var isCase = this.tok.type === tt._case; if (cur) this.finishNode(cur, "SwitchCase"); node.cases.push(cur = this.startNode()); cur.consequent = []; this.next(); if (isCase) cur.test = this.parseExpression();else cur.test = null; this.expect(tt.colon); } else { if (!cur) { node.cases.push(cur = this.startNode()); cur.consequent = []; cur.test = null; } cur.consequent.push(this.parseStatement()); } } if (cur) this.finishNode(cur, "SwitchCase"); this.popCx(); this.eat(tt.braceR); return this.finishNode(node, "SwitchStatement"); case tt._throw: this.next(); node.argument = this.parseExpression(); this.semicolon(); return this.finishNode(node, "ThrowStatement"); case tt._try: this.next(); node.block = this.parseBlock(); node.handler = null; if (this.tok.type === tt._catch) { var clause = this.startNode(); this.next(); this.expect(tt.parenL); clause.param = this.toAssignable(this.parseExprAtom(), true); this.expect(tt.parenR); clause.guard = null; clause.body = this.parseBlock(); node.handler = this.finishNode(clause, "CatchClause"); } node.finalizer = this.eat(tt._finally) ? this.parseBlock() : null; if (!node.handler && !node.finalizer) return node.block; return this.finishNode(node, "TryStatement"); case tt._var: case tt._let: case tt._const: return this.parseVar(); case tt._while: this.next(); node.test = this.parseParenExpression(); node.body = this.parseStatement(); return this.finishNode(node, "WhileStatement"); case tt._with: this.next(); node.object = this.parseParenExpression(); node.body = this.parseStatement(); return this.finishNode(node, "WithStatement"); case tt.braceL: return this.parseBlock(); case tt.semi: this.next(); return this.finishNode(node, "EmptyStatement"); case tt._class: return this.parseClass(true); case tt._import: return this.parseImport(); case tt._export: return this.parseExport(); default: var expr = this.parseExpression(); if (isDummy(expr)) { this.next(); if (this.tok.type === tt.eof) return this.finishNode(node, "EmptyStatement"); return this.parseStatement(); } else if (starttype === tt.name && expr.type === "Identifier" && this.eat(tt.colon)) { node.body = this.parseStatement(); node.label = expr; return this.finishNode(node, "LabeledStatement"); } else { node.expression = expr; this.semicolon(); return this.finishNode(node, "ExpressionStatement"); } } }; lp.parseBlock = function () { var node = this.startNode(); this.pushCx(); this.expect(tt.braceL); var blockIndent = this.curIndent, line = this.curLineStart; node.body = []; while (!this.closes(tt.braceR, blockIndent, line, true)) node.body.push(this.parseStatement()); this.popCx(); this.eat(tt.braceR); return this.finishNode(node, "BlockStatement"); }; lp.parseFor = function (node, init) { node.init = init; node.test = node.update = null; if (this.eat(tt.semi) && this.tok.type !== tt.semi) node.test = this.parseExpression(); if (this.eat(tt.semi) && this.tok.type !== tt.parenR) node.update = this.parseExpression(); this.popCx(); this.expect(tt.parenR); node.body = this.parseStatement(); return this.finishNode(node, "ForStatement"); }; lp.parseForIn = function (node, init) { var type = this.tok.type === tt._in ? "ForInStatement" : "ForOfStatement"; this.next(); node.left = init; node.right = this.parseExpression(); this.popCx(); this.expect(tt.parenR); node.body = this.parseStatement(); return this.finishNode(node, type); }; lp.parseVar = function (noIn) { var node = this.startNode(); node.kind = this.tok.type.keyword; this.next(); node.declarations = []; do { var decl = this.startNode(); decl.id = this.options.ecmaVersion >= 6 ? this.toAssignable(this.parseExprAtom(), true) : this.parseIdent(); decl.init = this.eat(tt.eq) ? this.parseMaybeAssign(noIn) : null; node.declarations.push(this.finishNode(decl, "VariableDeclarator")); } while (this.eat(tt.comma)); if (!node.declarations.length) { var decl = this.startNode(); decl.id = this.dummyIdent(); node.declarations.push(this.finishNode(decl, "VariableDeclarator")); } if (!noIn) this.semicolon(); return this.finishNode(node, "VariableDeclaration"); }; lp.parseClass = function (isStatement) { var node = this.startNode(); this.next(); if (this.tok.type === tt.name) node.id = this.parseIdent();else if (isStatement) node.id = this.dummyIdent();else node.id = null; node.superClass = this.eat(tt._extends) ? this.parseExpression() : null; node.body = this.startNode(); node.body.body = []; this.pushCx(); var indent = this.curIndent + 1, line = this.curLineStart; this.eat(tt.braceL); if (this.curIndent + 1 < indent) { indent = this.curIndent;line = this.curLineStart; } while (!this.closes(tt.braceR, indent, line)) { if (this.semicolon()) continue; var method = this.startNode(), isGenerator = undefined; if (this.options.ecmaVersion >= 6) { method["static"] = false; isGenerator = this.eat(tt.star); } this.parsePropertyName(method); if (isDummy(method.key)) { if (isDummy(this.parseMaybeAssign())) this.next();this.eat(tt.comma);continue; } if (method.key.type === "Identifier" && !method.computed && method.key.name === "static" && (this.tok.type != tt.parenL && this.tok.type != tt.braceL)) { method["static"] = true; isGenerator = this.eat(tt.star); this.parsePropertyName(method); } else { method["static"] = false; } if (this.options.ecmaVersion >= 5 && method.key.type === "Identifier" && !method.computed && (method.key.name === "get" || method.key.name === "set") && this.tok.type !== tt.parenL && this.tok.type !== tt.braceL) { method.kind = method.key.name; this.parsePropertyName(method); method.value = this.parseMethod(false); } else { if (!method.computed && !method["static"] && !isGenerator && (method.key.type === "Identifier" && method.key.name === "constructor" || method.key.type === "Literal" && method.key.value === "constructor")) { method.kind = "constructor"; } else { method.kind = "method"; } method.value = this.parseMethod(isGenerator); } node.body.body.push(this.finishNode(method, "MethodDefinition")); } this.popCx(); if (!this.eat(tt.braceR)) { // If there is no closing brace, make the node span to the start // of the next token (this is useful for Tern) this.last.end = this.tok.start; if (this.options.locations) this.last.loc.end = this.tok.loc.start; } this.semicolon(); this.finishNode(node.body, "ClassBody"); return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression"); }; lp.parseFunction = function (node, isStatement) { this.initFunction(node); if (this.options.ecmaVersion >= 6) { node.generator = this.eat(tt.star); } if (this.tok.type === tt.name) node.id = this.parseIdent();else if (isStatement) node.id = this.dummyIdent(); node.params = this.parseFunctionParams(); node.body = this.parseBlock(); return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression"); }; lp.parseExport = function () { var node = this.startNode(); this.next(); if (this.eat(tt.star)) { node.source = this.eatContextual("from") ? this.parseExprAtom() : null; return this.finishNode(node, "ExportAllDeclaration"); } if (this.eat(tt._default)) { var expr = this.parseMaybeAssign(); if (expr.id) { switch (expr.type) { case "FunctionExpression": expr.type = "FunctionDeclaration";break; case "ClassExpression": expr.type = "ClassDeclaration";break; } } node.declaration = expr; this.semicolon(); return this.finishNode(node, "ExportDefaultDeclaration"); } if (this.tok.type.keyword) { node.declaration = this.parseStatement(); node.specifiers = []; node.source = null; } else { node.declaration = null; node.specifiers = this.parseExportSpecifierList(); node.source = this.eatContextual("from") ? this.parseExprAtom() : null; this.semicolon(); } return this.finishNode(node, "ExportNamedDeclaration"); }; lp.parseImport = function () { var node = this.startNode(); this.next(); if (this.tok.type === tt.string) { node.specifiers = []; node.source = this.parseExprAtom(); node.kind = ""; } else { var elt = undefined; if (this.tok.type === tt.name && this.tok.value !== "from") { elt = this.startNode(); elt.local = this.parseIdent(); this.finishNode(elt, "ImportDefaultSpecifier"); this.eat(tt.comma); } node.specifiers = this.parseImportSpecifierList(); node.source = this.eatContextual("from") ? this.parseExprAtom() : null; if (elt) node.specifiers.unshift(elt); } this.semicolon(); return this.finishNode(node, "ImportDeclaration"); }; lp.parseImportSpecifierList = function () { var elts = []; if (this.tok.type === tt.star) { var elt = this.startNode(); this.next(); if (this.eatContextual("as")) elt.local = this.parseIdent(); elts.push(this.finishNode(elt, "ImportNamespaceSpecifier")); } else { var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart; this.pushCx(); this.eat(tt.braceL); if (this.curLineStart > continuedLine) continuedLine = this.curLineStart; while (!this.closes(tt.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) { var elt = this.startNode(); if (this.eat(tt.star)) { if (this.eatContextual("as")) elt.local = this.parseIdent(); this.finishNode(elt, "ImportNamespaceSpecifier"); } else { if (this.isContextual("from")) break; elt.imported = this.parseIdent(); elt.local = this.eatContextual("as") ? this.parseIdent() : elt.imported; this.finishNode(elt, "ImportSpecifier"); } elts.push(elt); this.eat(tt.comma); } this.eat(tt.braceR); this.popCx(); } return elts; }; lp.parseExportSpecifierList = function () { var elts = []; var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart; this.pushCx(); this.eat(tt.braceL); if (this.curLineStart > continuedLine) continuedLine = this.curLineStart; while (!this.closes(tt.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) { if (this.isContextual("from")) break; var elt = this.startNode(); elt.local = this.parseIdent(); elt.exported = this.eatContextual("as") ? this.parseIdent() : elt.local; this.finishNode(elt, "ExportSpecifier"); elts.push(elt); this.eat(tt.comma); } this.eat(tt.braceR); this.popCx(); return elts; }; },{"..":2,"./parseutil":4,"./state":5}],7:[function(_dereq_,module,exports){ "use strict"; var _ = _dereq_(".."); var tt = _.tokTypes; var Token = _.Token; var isNewLine = _.isNewLine; var SourceLocation = _.SourceLocation; var getLineInfo = _.getLineInfo; var lineBreakG = _.lineBreakG; var LooseParser = _dereq_("./state").LooseParser; var lp = LooseParser.prototype; function isSpace(ch) { return ch < 14 && ch > 8 || ch === 32 || ch === 160 || isNewLine(ch); } lp.next = function () { this.last = this.tok; if (this.ahead.length) this.tok = this.ahead.shift();else this.tok = this.readToken(); if (this.tok.start >= this.nextLineStart) { while (this.tok.start >= this.nextLineStart) { this.curLineStart = this.nextLineStart; this.nextLineStart = this.lineEnd(this.curLineStart) + 1; } this.curIndent = this.indentationAfter(this.curLineStart); } }; lp.readToken = function () { for (;;) { try { this.toks.next(); if (this.toks.type === tt.dot && this.input.substr(this.toks.end, 1) === "." && this.options.ecmaVersion >= 6) { this.toks.end++; this.toks.type = tt.ellipsis; } return new Token(this.toks); } catch (e) { if (!(e instanceof SyntaxError)) throw e; // Try to skip some text, based on the error message, and then continue var msg = e.message, pos = e.raisedAt, replace = true; if (/unterminated/i.test(msg)) { pos = this.lineEnd(e.pos + 1); if (/string/.test(msg)) { replace = { start: e.pos, end: pos, type: tt.string, value: this.input.slice(e.pos + 1, pos) }; } else if (/regular expr/i.test(msg)) { var re = this.input.slice(e.pos, pos); try { re = new RegExp(re); } catch (e) {} replace = { start: e.pos, end: pos, type: tt.regexp, value: re }; } else if (/template/.test(msg)) { replace = { start: e.pos, end: pos, type: tt.template, value: this.input.slice(e.pos, pos) }; } else { replace = false; } } else if (/invalid (unicode|regexp|number)|expecting unicode|octal literal|is reserved|directly after number|expected number in radix/i.test(msg)) { while (pos < this.input.length && !isSpace(this.input.charCodeAt(pos))) ++pos; } else if (/character escape|expected hexadecimal/i.test(msg)) { while (pos < this.input.length) { var ch = this.input.charCodeAt(pos++); if (ch === 34 || ch === 39 || isNewLine(ch)) break; } } else if (/unexpected character/i.test(msg)) { pos++; replace = false; } else if (/regular expression/i.test(msg)) { replace = true; } else { throw e; } this.resetTo(pos); if (replace === true) replace = { start: pos, end: pos, type: tt.name, value: "✖" }; if (replace) { if (this.options.locations) replace.loc = new SourceLocation(this.toks, getLineInfo(this.input, replace.start), getLineInfo(this.input, replace.end)); return replace; } } } }; lp.resetTo = function (pos) { this.toks.pos = pos; var ch = this.input.charAt(pos - 1); this.toks.exprAllowed = !ch || /[\[\{\(,;:?\/*=+\-~!|&%^<>]/.test(ch) || /[enwfd]/.test(ch) && /\b(keywords|case|else|return|throw|new|in|(instance|type)of|delete|void)$/.test(this.input.slice(pos - 10, pos)); if (this.options.locations) { this.toks.curLine = 1; this.toks.lineStart = lineBreakG.lastIndex = 0; var match = undefined; while ((match = lineBreakG.exec(this.input)) && match.index < pos) { ++this.toks.curLine; this.toks.lineStart = match.index + match[0].length; } } }; lp.lookAhead = function (n) { while (n > this.ahead.length) this.ahead.push(this.readToken()); return this.ahead[n - 1]; }; },{"..":2,"./state":5}]},{},[1])(1) });