/** * Modules in this bundle * @license * * power-assert-formatter: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * contributors: James Talmage * homepage: https://github.com/power-assert-js/power-assert-formatter * version: 1.4.1 * * acorn: * license: MIT (http://opensource.org/licenses/MIT) * maintainers: marijn , rreverser * contributors: -e List of Acorn contributors. Updated before every release., Adrian Rakovsky, Alistair Braidwood, Andres Suarez, Angelo, Aparajita Fishman, Arian Stolwijk, Artem Govorov, Brandon Mills, Charles Hughes, Conrad Irwin, David Bonnet, Domenico Matteo, ForbesLindesay, Forbes Lindesay, Gilad Peleg, impinball, Ingvar Stepanyan, Jackson Ray Hamilton, Jesse McCarthy, Jiaxing Wang, Joel Kemp, Johannes Herr, Jordan Klassen, Jürg Lehni, keeyipchan, Keheliya Gallaba, Kevin Kwok, krator, Marijn Haverbeke, Martin Carlberg, Mathias Bynens, Mathieu 'p01' Henri, Matthew Bastien, Max Schaefer, Max Zerzouri, Mihai Bazon, Mike Rennie, Nicholas C. Zakas, Nick Fitzgerald, Olivier Thomann, Oskar Schöldström, Paul Harper, Peter Rust, PlNG, Prayag Verma, ReadmeCritic, r-e-d, Richard Gibson, Rich Harris, Sebastian McKenzie, Timothy Gu, Toru Nagashima, zsjforcn * homepage: https://github.com/ternjs/acorn * version: 3.2.0 * * acorn-es7-plugin: * license: MIT (http://opensource.org/licenses/MIT) * author: matatbread * maintainers: matatbread * homepage: https://github.com/MatAtBread/acorn-es7-plugin#readme * version: 1.0.15 * * core-js: * license: MIT (http://opensource.org/licenses/MIT) * maintainers: zloirock * homepage: https://github.com/zloirock/core-js#readme * version: 2.4.0 * * diff-match-patch: * license: http://www.apache.org/licenses/LICENSE-2.0 * maintainers: forbeslindesay * homepage: https://github.com/ForbesLindesay/diff-match-patch#readme * version: 1.0.0 * * eastasianwidth: * license: MIT (http://opensource.org/licenses/MIT) * author: Masaki Komagata * maintainers: komagata * homepage: https://github.com/komagata/eastasianwidth#readme * version: 0.1.1 * * espurify: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * homepage: https://github.com/estools/espurify * version: 1.6.0 * * estraverse: * license: BSD-2-Clause (http://opensource.org/licenses/BSD-2-Clause) * maintainers: constellation , michaelficarra , nzakas * homepage: https://github.com/estools/estraverse * version: 4.2.0 * * events: * license: MIT (http://opensource.org/licenses/MIT) * author: Irakli Gozalishvili * maintainers: gozala , defunctzombie * homepage: https://github.com/Gozala/events#readme * version: 1.1.1 * * inherits: * license: ISC (http://opensource.org/licenses/ISC) * maintainers: isaacs * homepage: https://github.com/isaacs/inherits#readme * version: 2.0.1 * * power-assert-context-formatter: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * homepage: https://github.com/twada/power-assert-runtime * version: 1.0.7 * * power-assert-context-reducer-ast: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * homepage: https://github.com/twada/power-assert-runtime * version: 1.0.7 * * power-assert-context-traversal: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * homepage: https://github.com/twada/power-assert-runtime * version: 1.0.7 * * power-assert-renderer-assertion: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * homepage: https://github.com/twada/power-assert-runtime * version: 1.0.7 * * power-assert-renderer-base: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * homepage: https://github.com/twada/power-assert-runtime * version: 1.0.7 * * power-assert-renderer-comparison: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * homepage: https://github.com/twada/power-assert-runtime * version: 1.0.7 * * power-assert-renderer-diagram: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * homepage: https://github.com/twada/power-assert-runtime * version: 1.0.7 * * power-assert-renderer-file: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * homepage: https://github.com/twada/power-assert-runtime * version: 1.0.7 * * process: * license: MIT (http://opensource.org/licenses/MIT) * author: Roman Shtylman * maintainers: coolaj86 , cwmma , defunctzombie * homepage: https://github.com/shtylman/node-process#readme * version: 0.11.5 * * stringifier: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * homepage: https://github.com/twada/stringifier * version: 1.3.0 * * traverse: * license: MIT (http://opensource.org/licenses/MIT) * author: James Halliday * maintainers: substack * homepage: https://github.com/substack/js-traverse * version: 0.6.6 * * type-name: * license: MIT (http://opensource.org/licenses/MIT) * author: Takuto Wada * maintainers: twada * contributors: azu, Yosuke Furukawa * homepage: https://github.com/twada/type-name * version: 2.0.1 * * util: * license: MIT (http://opensource.org/licenses/MIT) * author: Joyent * maintainers: shtylman * homepage: https://github.com/defunctzombie/node-util * version: 0.10.3 * * This header is generated by licensify (https://github.com/twada/licensify) */ (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.powerAssertFormatter = 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= since; } function test(regex,st,noComment) { var src = st.input.slice(st.start) ; if (noComment) { src = src.replace(removeComments,"$1 $3") ; } return regex.test(src); } /* Return the object holding the parser's 'State'. This is different between acorn ('this') * and babylon ('this.state') */ function state(p) { if (('state' in p) && p.state.constructor && p.state.constructor.name==='State') return p.state ; // Probably babylon return p ; // Probably acorn } /* Create a new parser derived from the specified parser, so that in the * event of an error we can back out and try again */ function subParse(parser, pos, extensions) { // NB: The Babylon constructor does NOT expect 'pos' as an argument, and so // the input needs truncation at the start position, however at present // this doesn't work nicely as all the node location/start/end values // are therefore offset. Consequently, this plug-in is NOT currently working // with the (undocumented) Babylon plug-in interface. var p = new parser.constructor(parser.options, parser.input, pos); if (extensions) for (var k in extensions) p[k] = extensions[k] ; var src = state(parser) ; var dest = state(p) ; ['inFunction','inAsyncFunction','inAsync','inGenerator','inModule'].forEach(function(k){ if (k in src) dest[k] = src[k] ; }) ; p.nextToken(); return p; } function asyncAwaitPlugin (parser,options){ var es7check = function(){} ; parser.extend("initialContext",function(base){ return function(){ if (this.options.ecmaVersion < 7) { es7check = function(node) { parser.raise(node.start,"async/await keywords only available when ecmaVersion>=7") ; } ; } this.reservedWords = new RegExp(this.reservedWords.toString().replace(/await|async/g,"").replace("|/","/").replace("/|","/").replace("||","|")) ; this.reservedWordsStrict = new RegExp(this.reservedWordsStrict.toString().replace(/await|async/g,"").replace("|/","/").replace("/|","/").replace("||","|")) ; this.reservedWordsStrictBind = new RegExp(this.reservedWordsStrictBind.toString().replace(/await|async/g,"").replace("|/","/").replace("/|","/").replace("||","|")) ; this.inAsyncFunction = options.inAsyncFunction ; if (options.awaitAnywhere && options.inAsyncFunction) parser.raise(node.start,"The options awaitAnywhere and inAsyncFunction are mutually exclusive") ; return base.apply(this,arguments); } }) ; parser.extend("shouldParseExportStatement",function(base){ return function(){ if (this.type.label==='name' && this.value==='async' && test(asyncFunction,state(this))) { return true ; } return base.apply(this,arguments) ; } }) ; parser.extend("parseStatement",function(base){ return function (declaration, topLevel) { var st = state(this) ; var start = st.start; var startLoc = st.startLoc; if (st.type.label==='name') { if (test(asyncFunction,st,true)) { var wasAsync = st.inAsyncFunction ; try { st.inAsyncFunction = true ; this.next() ; var r = this.parseStatement(declaration, topLevel) ; r.async = true ; r.start = start; r.loc && (r.loc.start = startLoc); return r ; } finally { st.inAsyncFunction = wasAsync ; } } else if ((typeof options==="object" && options.asyncExits) && test(asyncExit,st)) { // NON-STANDARD EXTENSION iff. options.asyncExits is set, the // extensions 'async return ?' and 'async throw ?' // are enabled. In each case they are the standard ESTree nodes // with the flag 'async:true' this.next() ; var r = this.parseStatement(declaration, topLevel) ; r.async = true ; r.start = start; r.loc && (r.loc.start = startLoc); return r ; } } return base.apply(this,arguments); } }) ; parser.extend("parseIdent",function(base){ return function(liberal){ var id = base.apply(this,arguments); var st = state(this) ; if (st.inAsyncFunction && id.name==='await') { if (arguments.length===0) { this.raise(id.start,"'await' is reserved within async functions") ; } } return id ; } }) ; parser.extend("parseExprAtom",function(base){ return function(refShorthandDefaultPos){ var st = state(this) ; var start = st.start ; var startLoc = st.startLoc; var rhs,r = base.apply(this,arguments); if (r.type==='Identifier') { if (r.name==='async' && !hasLineTerminatorBeforeNext(st, r.end)) { // Is this really an async function? var isAsync = st.inAsyncFunction ; try { st.inAsyncFunction = true ; var pp = this ; var inBody = false ; var parseHooks = { parseFunctionBody:function(node,isArrowFunction){ try { var wasInBody = inBody ; inBody = true ; return pp.parseFunctionBody.apply(this,arguments) ; } finally { inBody = wasInBody ; } }, raise:function(){ try { return pp.raise.apply(this,arguments) ; } catch(ex) { throw inBody?ex:NotAsync ; } } } ; rhs = subParse(this,st.start,parseHooks).parseExpression() ; if (rhs.type==='SequenceExpression') rhs = rhs.expressions[0] ; if (rhs.type==='FunctionExpression' || rhs.type==='FunctionDeclaration' || rhs.type==='ArrowFunctionExpression') { rhs.async = true ; rhs.start = start; rhs.loc && (rhs.loc.start = startLoc); st.pos = rhs.end; this.next(); es7check(rhs) ; return rhs ; } } catch (ex) { if (ex!==NotAsync) throw ex ; } finally { st.inAsyncFunction = isAsync ; } } else if (r.name==='await') { var n = this.startNodeAt(r.start, r.loc && r.loc.start); if (st.inAsyncFunction) { rhs = this.parseExprSubscripts() ; n.operator = 'await' ; n.argument = rhs ; n = this.finishNodeAt(n,'AwaitExpression', rhs.end, rhs.loc && rhs.loc.end) ; es7check(n) ; return n ; } else // NON-STANDARD EXTENSION iff. options.awaitAnywhere is true, // an 'AwaitExpression' is allowed anywhere the token 'await' // could not be an identifier with the name 'await'. // Look-ahead to see if this is really a property or label called async or await if (st.input.slice(r.end).match(atomOrPropertyOrLabel)) return r ; // This is a valid property name or label if (typeof options==="object" && options.awaitAnywhere) { start = st.start ; rhs = subParse(this,start-4).parseExprSubscripts() ; if (rhs.end<=start) { rhs = subParse(this,start).parseExprSubscripts() ; n.operator = 'await' ; n.argument = rhs ; n = this.finishNodeAt(n,'AwaitExpression', rhs.end, rhs.loc && rhs.loc.end) ; st.pos = rhs.end; this.next(); es7check(n) ; return n ; } } } } return r ; } }) ; parser.extend('finishNodeAt',function(base){ return function(node,type,pos,loc) { if (node.__asyncValue) { delete node.__asyncValue ; node.value.async = true ; } return base.apply(this,arguments) ; } }) ; parser.extend('finishNode',function(base){ return function(node,type) { if (node.__asyncValue) { delete node.__asyncValue ; node.value.async = true ; } return base.apply(this,arguments) ; } }) ; parser.extend("parsePropertyName",function(base){ return function (prop) { var st = state(this) ; var key = base.apply(this,arguments) ; if (key.type === "Identifier" && key.name === "async" && !hasLineTerminatorBeforeNext(st, key.end)) { // Look-ahead to see if this is really a property or label called async or await if (!st.input.slice(key.end).match(atomOrPropertyOrLabel)){ es7check(prop) ; key = base.apply(this,arguments) ; if (key.type==='Identifier') { if (key.name==='constructor') this.raise(key.start,"'constructor()' cannot be be async") ; else if (key.name==='set') this.raise(key.start,"'set (value)' cannot be be async") ; } prop.__asyncValue = true ; } } return key; }; }) ; parser.extend("parseClassMethod",function(base){ return function (classBody, method, isGenerator) { var st, wasAsync ; if (method.__asyncValue) { st = state(this) ; wasAsync = st.inAsyncFunction ; st.inAsyncFunction = true ; } var r = base.apply(this,arguments) ; if (st) { st.inAsyncFunction = wasAsync ; } return r ; } }) ; parser.extend("parsePropertyValue",function(base){ return function (prop, isPattern, isGenerator, startPos, startLoc, refDestructuringErrors) { var st, wasAsync ; if (prop.__asyncValue) { st = state(this) ; wasAsync = st.inAsyncFunction ; st.inAsyncFunction = true ; } var r = base.apply(this,arguments) ; if (st) { st.inAsyncFunction = wasAsync ; } return r ; } }) ; } module.exports = function(acorn) { acorn.plugins.asyncawait = asyncAwaitPlugin ; return acorn } },{}],5:[function(_dereq_,module,exports){ (function (global){ (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 = 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 _dereq_=="function"&&_dereq_;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 _dereq_=="function"&&_dereq_;for(var o=0;o= 6 && (prop.computed || prop.method || prop.shorthand)) return; var key = prop.key;var name = undefined; switch (key.type) { case "Identifier": name = key.name;break; case "Literal": name = String(key.value);break; default: return; } 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; } return; } name = "$" + name; var other = propHash[name]; if (other) { var isGetSet = kind !== "init"; if ((this.strict || isGetSet) && other[kind] || !(isGetSet ^ other.init)) this.raiseRecoverable(key.start, "Redefinition of property"); } else { other = propHash[name] = { init: false, get: false, set: false }; } other[kind] = true; }; // ### Expression parsing // These nest, from the most general expression type at the top to // 'atomic', nondivisible expression types at the bottom. Most of // the functions will simply let the function(s) below them parse, // and, *if* the syntactic construct they handle is present, wrap // the AST node that the inner parser gave them in another node. // Parse a full expression. The optional arguments are used to // forbid the `in` operator (in for loops initalization expressions) // and provide reference for storing '=' operator inside shorthand // property assignment in contexts where both object expression // and object pattern might appear (so it's possible to raise // delayed syntax error at correct position). pp.parseExpression = function (noIn, refDestructuringErrors) { var startPos = this.start, startLoc = this.startLoc; var expr = this.parseMaybeAssign(noIn, refDestructuringErrors); if (this.type === _tokentype.types.comma) { var node = this.startNodeAt(startPos, startLoc); node.expressions = [expr]; while (this.eat(_tokentype.types.comma)) node.expressions.push(this.parseMaybeAssign(noIn, refDestructuringErrors)); return this.finishNode(node, "SequenceExpression"); } return expr; }; // Parse an assignment expression. This includes applications of // operators like `+=`. pp.parseMaybeAssign = function (noIn, refDestructuringErrors, afterLeftParse) { if (this.inGenerator && this.isContextual("yield")) return this.parseYield(); var ownDestructuringErrors = false; if (!refDestructuringErrors) { refDestructuringErrors = new _parseutil.DestructuringErrors(); ownDestructuringErrors = true; } var startPos = this.start, startLoc = this.startLoc; if (this.type == _tokentype.types.parenL || this.type == _tokentype.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) _parseutil.DestructuringErrors.call(refDestructuringErrors); var node = this.startNodeAt(startPos, startLoc); node.operator = this.value; node.left = this.type === _tokentype.types.eq ? this.toAssignable(left) : left; refDestructuringErrors.shorthandAssign = 0; // 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); } return left; }; // Parse a ternary conditional (`?:`) operator. pp.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(_tokentype.types.question)) { var node = this.startNodeAt(startPos, startLoc); node.test = expr; node.consequent = this.parseMaybeAssign(); this.expect(_tokentype.types.colon); node.alternate = this.parseMaybeAssign(noIn); return this.finishNode(node, "ConditionalExpression"); } return expr; }; // Start the precedence parser. pp.parseExprOps = function (noIn, refDestructuringErrors) { var startPos = this.start, startLoc = this.startLoc; var expr = this.parseMaybeUnary(refDestructuringErrors, false); if (this.checkExpressionErrors(refDestructuringErrors)) return expr; return 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. // `minPrec` provides context that allows the function to stop and // defer further parser to one of its callers when it encounters an // operator that has a lower precedence than the set it is parsing. pp.parseExprOp = function (left, leftStartPos, leftStartLoc, minPrec, noIn) { var prec = this.type.binop; if (prec != null && (!noIn || this.type !== _tokentype.types._in)) { if (prec > minPrec) { var logical = this.type === _tokentype.types.logicalOR || this.type === _tokentype.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.buildBinary = function (startPos, startLoc, left, right, op, logical) { 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.parseMaybeUnary = function (refDestructuringErrors, sawUnary) { var startPos = this.start, startLoc = this.startLoc, expr = undefined; if (this.type.prefix) { var node = this.startNode(), update = this.type === _tokentype.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"); } else { expr = this.parseExprSubscripts(refDestructuringErrors); if (this.checkExpressionErrors(refDestructuringErrors)) return expr; while (this.type.postfix && !this.canInsertSemicolon()) { var node = this.startNodeAt(startPos, startLoc); node.operator = this.value; node.prefix = false; node.argument = expr; this.checkLVal(expr); this.next(); expr = this.finishNode(node, "UpdateExpression"); } } if (!sawUnary && this.eat(_tokentype.types.starstar)) return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false), "**", false);else return expr; }; // Parse call, dot, and `[]`-subscript expressions. pp.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; return this.parseSubscripts(expr, startPos, startLoc); }; pp.parseSubscripts = function (base, startPos, startLoc, noCalls) { for (;;) { if (this.eat(_tokentype.types.dot)) { var node = this.startNodeAt(startPos, startLoc); node.object = base; node.property = this.parseIdent(true); node.computed = false; base = this.finishNode(node, "MemberExpression"); } else if (this.eat(_tokentype.types.bracketL)) { var node = this.startNodeAt(startPos, startLoc); node.object = base; node.property = this.parseExpression(); node.computed = true; this.expect(_tokentype.types.bracketR); base = this.finishNode(node, "MemberExpression"); } else if (!noCalls && this.eat(_tokentype.types.parenL)) { var node = this.startNodeAt(startPos, startLoc); node.callee = base; node.arguments = this.parseExprList(_tokentype.types.parenR, false); base = this.finishNode(node, "CallExpression"); } else if (this.type === _tokentype.types.backQuote) { var node = this.startNodeAt(startPos, startLoc); node.tag = base; node.quasi = this.parseTemplate(); base = this.finishNode(node, "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 // `new`, or an expression wrapped in punctuation like `()`, `[]`, // or `{}`. pp.parseExprAtom = function (refDestructuringErrors) { var node = undefined, canBeArrow = this.potentialArrowAt == this.start; switch (this.type) { case _tokentype.types._super: if (!this.inFunction) this.raise(this.start, "'super' outside of function or class"); case _tokentype.types._this: var type = this.type === _tokentype.types._this ? "ThisExpression" : "Super"; node = this.startNode(); this.next(); return this.finishNode(node, type); case _tokentype.types.name: var startPos = this.start, startLoc = this.startLoc; var id = this.parseIdent(this.type !== _tokentype.types.name); if (canBeArrow && !this.canInsertSemicolon() && this.eat(_tokentype.types.arrow)) return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id]); return id; case _tokentype.types.regexp: var value = this.value; node = this.parseLiteral(value.value); node.regex = { pattern: value.pattern, flags: value.flags }; return node; case _tokentype.types.num:case _tokentype.types.string: return this.parseLiteral(this.value); case _tokentype.types._null:case _tokentype.types._true:case _tokentype.types._false: node = this.startNode(); node.value = this.type === _tokentype.types._null ? null : this.type === _tokentype.types._true; node.raw = this.type.keyword; this.next(); return this.finishNode(node, "Literal"); case _tokentype.types.parenL: return this.parseParenAndDistinguishExpression(canBeArrow); case _tokentype.types.bracketL: node = this.startNode(); this.next(); node.elements = this.parseExprList(_tokentype.types.bracketR, true, true, refDestructuringErrors); return this.finishNode(node, "ArrayExpression"); case _tokentype.types.braceL: return this.parseObj(false, refDestructuringErrors); case _tokentype.types._function: node = this.startNode(); this.next(); return this.parseFunction(node, false); case _tokentype.types._class: return this.parseClass(this.startNode(), false); case _tokentype.types._new: return this.parseNew(); case _tokentype.types.backQuote: return this.parseTemplate(); default: this.unexpected(); } }; pp.parseLiteral = function (value) { var node = this.startNode(); node.value = value; node.raw = this.input.slice(this.start, this.end); this.next(); return this.finishNode(node, "Literal"); }; pp.parseParenExpression = function () { this.expect(_tokentype.types.parenL); var val = this.parseExpression(); this.expect(_tokentype.types.parenR); return val; }; pp.parseParenAndDistinguishExpression = function (canBeArrow) { var startPos = this.start, startLoc = this.startLoc, val = undefined; if (this.options.ecmaVersion >= 6) { this.next(); var innerStartPos = this.start, innerStartLoc = this.startLoc; var exprList = [], first = true; var refDestructuringErrors = new _parseutil.DestructuringErrors(), spreadStart = undefined, innerParenStart = undefined; while (this.type !== _tokentype.types.parenR) { first ? first = false : this.expect(_tokentype.types.comma); if (this.type === _tokentype.types.ellipsis) { spreadStart = this.start; exprList.push(this.parseParenItem(this.parseRest())); break; } else { if (this.type === _tokentype.types.parenL && !innerParenStart) { innerParenStart = this.start; } exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem)); } } var innerEndPos = this.start, innerEndLoc = this.startLoc; this.expect(_tokentype.types.parenR); if (canBeArrow && !this.canInsertSemicolon() && this.eat(_tokentype.types.arrow)) { this.checkPatternErrors(refDestructuringErrors, true); if (innerParenStart) this.unexpected(innerParenStart); return this.parseParenArrowList(startPos, startLoc, exprList); } if (!exprList.length) this.unexpected(this.lastTokStart); if (spreadStart) this.unexpected(spreadStart); this.checkExpressionErrors(refDestructuringErrors, true); if (exprList.length > 1) { val = this.startNodeAt(innerStartPos, innerStartLoc); val.expressions = exprList; this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc); } else { val = exprList[0]; } } else { val = this.parseParenExpression(); } if (this.options.preserveParens) { var par = this.startNodeAt(startPos, startLoc); par.expression = val; return this.finishNode(par, "ParenthesizedExpression"); } else { return val; } }; pp.parseParenItem = function (item) { return item; }; pp.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, // not without wrapping it in parentheses. Thus, it uses the noCalls // argument to parseSubscripts to prevent it from consuming the // argument list. var empty = []; pp.parseNew = function () { var node = this.startNode(); var meta = this.parseIdent(true); if (this.options.ecmaVersion >= 6 && this.eat(_tokentype.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"); if (!this.inFunction) 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(_tokentype.types.parenL)) node.arguments = this.parseExprList(_tokentype.types.parenR, false);else node.arguments = empty; return this.finishNode(node, "NewExpression"); }; // Parse template expression. pp.parseTemplateElement = function () { var elem = this.startNode(); elem.value = { raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, '\n'), cooked: this.value }; this.next(); elem.tail = this.type === _tokentype.types.backQuote; return this.finishNode(elem, "TemplateElement"); }; pp.parseTemplate = function () { var node = this.startNode(); this.next(); node.expressions = []; var curElt = this.parseTemplateElement(); node.quasis = [curElt]; while (!curElt.tail) { this.expect(_tokentype.types.dollarBraceL); node.expressions.push(this.parseExpression()); this.expect(_tokentype.types.braceR); node.quasis.push(curElt = this.parseTemplateElement()); } this.next(); return this.finishNode(node, "TemplateLiteral"); }; // Parse an object literal or binding pattern. pp.parseObj = function (isPattern, refDestructuringErrors) { var node = this.startNode(), first = true, propHash = {}; node.properties = []; this.next(); while (!this.eat(_tokentype.types.braceR)) { if (!first) { this.expect(_tokentype.types.comma); if (this.afterTrailingComma(_tokentype.types.braceR)) break; } else first = false; var prop = this.startNode(), isGenerator = undefined, startPos = undefined, startLoc = undefined; if (this.options.ecmaVersion >= 6) { prop.method = false; prop.shorthand = false; if (isPattern || refDestructuringErrors) { startPos = this.start; startLoc = this.startLoc; } if (!isPattern) isGenerator = this.eat(_tokentype.types.star); } this.parsePropertyName(prop); this.parsePropertyValue(prop, isPattern, isGenerator, startPos, startLoc, refDestructuringErrors); this.checkPropClash(prop, propHash); node.properties.push(this.finishNode(prop, "Property")); } return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression"); }; pp.parsePropertyValue = function (prop, isPattern, isGenerator, startPos, startLoc, refDestructuringErrors) { if (this.eat(_tokentype.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 === _tokentype.types.parenL) { if (isPattern) this.unexpected(); prop.kind = "init"; prop.method = true; prop.value = this.parseMethod(isGenerator); } else if (this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && this.type != _tokentype.types.comma && this.type != _tokentype.types.braceR) { if (isGenerator || 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; if (prop.kind === "get") this.raiseRecoverable(start, "getter should have no params");else this.raiseRecoverable(start, "setter should have exactly one param"); } if (prop.kind === "set" && prop.value.params[0].type === "RestElement") 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.reservedWordsStrictBind : this.reservedWords).test(prop.key.name) || this.inGenerator && prop.key.name == "yield") this.raiseRecoverable(prop.key.start, "'" + prop.key.name + "' can not be used as shorthand property"); prop.kind = "init"; if (isPattern) { prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key); } else if (this.type === _tokentype.types.eq && refDestructuringErrors) { if (!refDestructuringErrors.shorthandAssign) refDestructuringErrors.shorthandAssign = this.start; prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key); } else { prop.value = prop.key; } prop.shorthand = true; } else this.unexpected(); }; pp.parsePropertyName = function (prop) { if (this.options.ecmaVersion >= 6) { if (this.eat(_tokentype.types.bracketL)) { prop.computed = true; prop.key = this.parseMaybeAssign(); this.expect(_tokentype.types.bracketR); return prop.key; } else { prop.computed = false; } } return prop.key = this.type === _tokentype.types.num || this.type === _tokentype.types.string ? this.parseExprAtom() : this.parseIdent(true); }; // Initialize empty function node. pp.initFunction = function (node) { node.id = null; if (this.options.ecmaVersion >= 6) { node.generator = false; node.expression = false; } }; // Parse object or class method. pp.parseMethod = function (isGenerator) { var node = this.startNode(), oldInGen = this.inGenerator; this.inGenerator = isGenerator; this.initFunction(node); this.expect(_tokentype.types.parenL); node.params = this.parseBindingList(_tokentype.types.parenR, false, false); if (this.options.ecmaVersion >= 6) node.generator = isGenerator; this.parseFunctionBody(node, false); this.inGenerator = oldInGen; return this.finishNode(node, "FunctionExpression"); }; // Parse arrow function expression with given parameters. pp.parseArrowExpression = function (node, params) { var oldInGen = this.inGenerator; this.inGenerator = false; this.initFunction(node); node.params = this.toAssignableList(params, true); this.parseFunctionBody(node, true); this.inGenerator = oldInGen; return this.finishNode(node, "ArrowFunctionExpression"); }; // Parse function body and check parameters. pp.parseFunctionBody = function (node, isArrowFunction) { var isExpression = isArrowFunction && this.type !== _tokentype.types.braceL; if (isExpression) { node.body = this.parseMaybeAssign(); node.expression = true; } else { // Start a new scope with regard to labels and the `inFunction` // flag (restore them to their old value afterwards). var oldInFunc = this.inFunction, oldLabels = this.labels; this.inFunction = true;this.labels = []; node.body = this.parseBlock(true); node.expression = false; this.inFunction = oldInFunc;this.labels = oldLabels; } // 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 (this.strict || !isExpression && node.body.body.length && this.isUseStrict(node.body.body[0])) { var oldStrict = this.strict; this.strict = true; if (node.id) this.checkLVal(node.id, true); this.checkParams(node); this.strict = oldStrict; } else if (isArrowFunction) { this.checkParams(node); } }; // Checks function params for various disallowed patterns such as using "eval" // or "arguments" and duplicate parameters. pp.checkParams = function (node) { var nameHash = {}; for (var i = 0; i < node.params.length; i++) { this.checkLVal(node.params[i], true, nameHash); } }; // Parses a comma-separated list of expressions, and returns them as // an array. `close` is the token type that ends the list, and // `allowEmpty` can be turned on to allow subsequent commas with // nothing in between them to be parsed as `null` (which is needed // for array literals). pp.parseExprList = function (close, allowTrailingComma, allowEmpty, refDestructuringErrors) { var elts = [], first = true; while (!this.eat(close)) { if (!first) { this.expect(_tokentype.types.comma); if (allowTrailingComma && this.afterTrailingComma(close)) break; } else first = false; var elt = undefined; if (allowEmpty && this.type === _tokentype.types.comma) elt = null;else if (this.type === _tokentype.types.ellipsis) { elt = this.parseSpread(refDestructuringErrors); if (this.type === _tokentype.types.comma && refDestructuringErrors && !refDestructuringErrors.trailingComma) { refDestructuringErrors.trailingComma = this.lastTokStart; } } else elt = this.parseMaybeAssign(false, refDestructuringErrors); 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.parseIdent = function (liberal) { var node = this.startNode(); if (liberal && this.options.allowReserved == "never") liberal = false; if (this.type === _tokentype.types.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 (!liberal && this.inGenerator && this.value === "yield") this.raiseRecoverable(this.start, "Can not use 'yield' as identifier inside a generator"); node.name = this.value; } else if (liberal && this.type.keyword) { node.name = this.type.keyword; } else { this.unexpected(); } this.next(); return this.finishNode(node, "Identifier"); }; // Parses yield expression inside generator. pp.parseYield = function () { var node = this.startNode(); this.next(); if (this.type == _tokentype.types.semi || this.canInsertSemicolon() || this.type != _tokentype.types.star && !this.type.startsExpr) { node.delegate = false; node.argument = null; } else { node.delegate = this.eat(_tokentype.types.star); node.argument = this.parseMaybeAssign(); } return this.finishNode(node, "YieldExpression"); }; },{"./parseutil":9,"./state":10,"./tokentype":14}],2:[function(_dereq_,module,exports){ // Reserved word lists for various dialects of the language "use strict"; exports.__esModule = true; exports.isIdentifierStart = isIdentifierStart; exports.isIdentifierChar = isIdentifierChar; var reservedWords = { 3: "abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile", 5: "class enum extends super const export import", 6: "enum", 7: "enum", strict: "implements interface let package private protected public static yield", strictBind: "eval arguments" }; exports.reservedWords = reservedWords; // 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 keywords = { 5: ecma5AndLessKeywords, 6: ecma5AndLessKeywords + " const class extends export import super" }; exports.keywords = keywords; // ## Character categories // Big ugly regular expressions that match characters in the // whitespace, identifier, and identifier-start categories. These // are only applied when a character is found to actually have a // code point above 128. // Generated by `bin/generate-identifier-regex.js`. var nonASCIIidentifierStartChars = "ªµºÀ-ÖØ-öø-ˁˆ-ˑˠ-ˤˬˮͰ-ʹͶͷͺ-ͽͿΆΈ-ΊΌΎ-ΡΣ-ϵϷ-ҁҊ-ԯԱ-Ֆՙա-ևא-תװ-ײؠ-يٮٯٱ-ۓەۥۦۮۯۺ-ۼۿܐܒ-ܯݍ-ޥޱߊ-ߪߴߵߺࠀ-ࠕࠚࠤࠨࡀ-ࡘࢠ-ࢴऄ-हऽॐक़-ॡॱ-ঀঅ-ঌএঐও-নপ-রলশ-হঽৎড়ঢ়য়-ৡৰৱਅ-ਊਏਐਓ-ਨਪ-ਰਲਲ਼ਵਸ਼ਸਹਖ਼-ੜਫ਼ੲ-ੴઅ-ઍએ-ઑઓ-નપ-રલળવ-હઽૐૠૡૹଅ-ଌଏଐଓ-ନପ-ରଲଳଵ-ହଽଡ଼ଢ଼ୟ-ୡୱஃஅ-ஊஎ-ஐஒ-கஙசஜஞடணதந-பம-ஹௐఅ-ఌఎ-ఐఒ-నప-హఽౘ-ౚౠౡಅ-ಌಎ-ಐಒ-ನಪ-ಳವ-ಹಽೞೠೡೱೲഅ-ഌഎ-ഐഒ-ഺഽൎൟ-ൡൺ-ൿඅ-ඖක-නඳ-රලව-ෆก-ะาำเ-ๆກຂຄງຈຊຍດ-ທນ-ຟມ-ຣລວສຫອ-ະາຳຽເ-ໄໆໜ-ໟༀཀ-ཇཉ-ཬྈ-ྌက-ဪဿၐ-ၕၚ-ၝၡၥၦၮ-ၰၵ-ႁႎႠ-ჅჇჍა-ჺჼ-ቈቊ-ቍቐ-ቖቘቚ-ቝበ-ኈኊ-ኍነ-ኰኲ-ኵኸ-ኾዀዂ-ዅወ-ዖዘ-ጐጒ-ጕጘ-ፚᎀ-ᎏᎠ-Ᏽᏸ-ᏽᐁ-ᙬᙯ-ᙿᚁ-ᚚᚠ-ᛪᛮ-ᛸᜀ-ᜌᜎ-ᜑᜠ-ᜱᝀ-ᝑᝠ-ᝬᝮ-ᝰក-ឳៗៜᠠ-ᡷᢀ-ᢨᢪᢰ-ᣵᤀ-ᤞᥐ-ᥭᥰ-ᥴᦀ-ᦫᦰ-ᧉᨀ-ᨖᨠ-ᩔᪧᬅ-ᬳᭅ-ᭋᮃ-ᮠᮮᮯᮺ-ᯥᰀ-ᰣᱍ-ᱏᱚ-ᱽᳩ-ᳬᳮ-ᳱᳵᳶᴀ-ᶿḀ-ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ᾼιῂ-ῄῆ-ῌῐ-ΐῖ-Ίῠ-Ῥῲ-ῴῶ-ῼⁱⁿₐ-ₜℂℇℊ-ℓℕ℘-ℝℤΩℨK-ℹℼ-ℿⅅ-ⅉⅎⅠ-ↈⰀ-Ⱞⰰ-ⱞⱠ-ⳤⳫ-ⳮⳲⳳⴀ-ⴥⴧⴭⴰ-ⵧⵯⶀ-ⶖⶠ-ⶦⶨ-ⶮⶰ-ⶶⶸ-ⶾⷀ-ⷆⷈ-ⷎⷐ-ⷖⷘ-ⷞ々-〇〡-〩〱-〵〸-〼ぁ-ゖ゛-ゟァ-ヺー-ヿㄅ-ㄭㄱ-ㆎㆠ-ㆺㇰ-ㇿ㐀-䶵一-鿕ꀀ-ꒌꓐ-ꓽꔀ-ꘌꘐ-ꘟꘪꘫꙀ-ꙮꙿ-ꚝꚠ-ꛯꜗ-ꜟꜢ-ꞈꞋ-ꞭꞰ-ꞷꟷ-ꠁꠃ-ꠅꠇ-ꠊꠌ-ꠢꡀ-ꡳꢂ-ꢳꣲ-ꣷꣻꣽꤊ-ꤥꤰ-ꥆꥠ-ꥼꦄ-ꦲꧏꧠ-ꧤꧦ-ꧯꧺ-ꧾꨀ-ꨨꩀ-ꩂꩄ-ꩋꩠ-ꩶꩺꩾ-ꪯꪱꪵꪶꪹ-ꪽꫀꫂꫛ-ꫝꫠ-ꫪꫲ-ꫴꬁ-ꬆꬉ-ꬎꬑ-ꬖꬠ-ꬦꬨ-ꬮꬰ-ꭚꭜ-ꭥꭰ-ꯢ가-힣ힰ-ퟆퟋ-ퟻ豈-舘並-龎ff-stﬓ-ﬗיִײַ-ﬨשׁ-זּטּ-לּמּנּסּףּפּצּ-ﮱﯓ-ﴽﵐ-ﶏﶒ-ﷇﷰ-ﷻﹰ-ﹴﹶ-ﻼＡ-Ｚａ-ｚｦ-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ"; var nonASCIIidentifierChars = "‌‍·̀-ͯ·҃-֑҇-ׇֽֿׁׂׅׄؐ-ًؚ-٩ٰۖ-ۜ۟-۪ۤۧۨ-ۭ۰-۹ܑܰ-݊ަ-ް߀-߉߫-߳ࠖ-࠙ࠛ-ࠣࠥ-ࠧࠩ-࡙࠭-࡛ࣣ-ःऺ-़ा-ॏ॑-ॗॢॣ०-९ঁ-ঃ়া-ৄেৈো-্ৗৢৣ০-৯ਁ-ਃ਼ਾ-ੂੇੈੋ-੍ੑ੦-ੱੵઁ-ઃ઼ા-ૅે-ૉો-્ૢૣ૦-૯ଁ-ଃ଼ା-ୄେୈୋ-୍ୖୗୢୣ୦-୯ஂா-ூெ-ைொ-்ௗ௦-௯ఀ-ఃా-ౄె-ైొ-్ౕౖౢౣ౦-౯ಁ-ಃ಼ಾ-ೄೆ-ೈೊ-್ೕೖೢೣ೦-೯ഁ-ഃാ-ൄെ-ൈൊ-്ൗൢൣ൦-൯ංඃ්ා-ුූෘ-ෟ෦-෯ෲෳัิ-ฺ็-๎๐-๙ັິ-ູົຼ່-ໍ໐-໙༘༙༠-༩༹༵༷༾༿ཱ-྄྆྇ྍ-ྗྙ-ྼ࿆ါ-ှ၀-၉ၖ-ၙၞ-ၠၢ-ၤၧ-ၭၱ-ၴႂ-ႍႏ-ႝ፝-፟፩-፱ᜒ-᜔ᜲ-᜴ᝒᝓᝲᝳ឴-៓៝០-៩᠋-᠍᠐-᠙ᢩᤠ-ᤫᤰ-᤻᥆-᥏᧐-᧚ᨗ-ᨛᩕ-ᩞ᩠-᩿᩼-᪉᪐-᪙᪰-᪽ᬀ-ᬄ᬴-᭄᭐-᭙᭫-᭳ᮀ-ᮂᮡ-ᮭ᮰-᮹᯦-᯳ᰤ-᰷᱀-᱉᱐-᱙᳐-᳔᳒-᳨᳭ᳲ-᳴᳸᳹᷀-᷵᷼-᷿‿⁀⁔⃐-⃥⃜⃡-⃰⳯-⵿⳱ⷠ-〪ⷿ-゙゚〯꘠-꘩꙯ꙴ-꙽ꚞꚟ꛰꛱ꠂ꠆ꠋꠣ-ꠧꢀꢁꢴ-꣄꣐-꣙꣠-꣱꤀-꤉ꤦ-꤭ꥇ-꥓ꦀ-ꦃ꦳-꧀꧐-꧙ꧥ꧰-꧹ꨩ-ꨶꩃꩌꩍ꩐-꩙ꩻ-ꩽꪰꪲ-ꪴꪷꪸꪾ꪿꫁ꫫ-ꫯꫵ꫶ꯣ-ꯪ꯬꯭꯰-꯹ﬞ︀-️︠-︯︳︴﹍-﹏０-９＿"; var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]"); var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]"); 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 // offset starts at 0x10000, and each pair of numbers represents an // offset to the next range, and then a size of the range. They were // generated by bin/generate-identifier-regex.js 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, 99, 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, 287, 47, 21, 1, 2, 0, 185, 46, 42, 3, 37, 47, 21, 0, 60, 42, 86, 25, 391, 63, 32, 0, 449, 56, 1288, 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, 16481, 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, 1340, 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 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, 168, 11, 6, 9, 7, 3, 57, 0, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 316, 19, 13, 9, 214, 6, 3, 8, 28, 1, 83, 16, 16, 9, 82, 12, 9, 9, 84, 14, 5, 9, 423, 9, 20855, 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, 3617, 6, 792618, 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; 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; } } // 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; 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; return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes); } },{}],3:[function(_dereq_,module,exports){ // Acorn is a tiny, fast JavaScript parser written in JavaScript. // // Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and // various contributors and released under an MIT license. // // Git repositories for Acorn are available at // // http://marijnhaverbeke.nl/git/acorn // https://github.com/ternjs/acorn.git // // Please use the [github bug tracker][ghbt] to report issues. // // [ghbt]: https://github.com/ternjs/acorn/issues // // This file defines the main parser interface. The library also comes // with a [error-tolerant parser][dammit] and an // [abstract syntax tree walker][walk], defined in other files. // // [dammit]: acorn_loose.js // [walk]: util/walk.js "use strict"; exports.__esModule = true; exports.parse = parse; exports.parseExpressionAt = parseExpressionAt; exports.tokenizer = tokenizer; var _state = _dereq_("./state"); _dereq_("./parseutil"); _dereq_("./statement"); _dereq_("./lval"); _dereq_("./expression"); _dereq_("./location"); exports.Parser = _state.Parser; exports.plugins = _state.plugins; var _options = _dereq_("./options"); exports.defaultOptions = _options.defaultOptions; var _locutil = _dereq_("./locutil"); exports.Position = _locutil.Position; exports.SourceLocation = _locutil.SourceLocation; exports.getLineInfo = _locutil.getLineInfo; var _node = _dereq_("./node"); exports.Node = _node.Node; var _tokentype = _dereq_("./tokentype"); exports.TokenType = _tokentype.TokenType; exports.tokTypes = _tokentype.types; var _tokencontext = _dereq_("./tokencontext"); exports.TokContext = _tokencontext.TokContext; exports.tokContexts = _tokencontext.types; var _identifier = _dereq_("./identifier"); exports.isIdentifierChar = _identifier.isIdentifierChar; exports.isIdentifierStart = _identifier.isIdentifierStart; var _tokenize = _dereq_("./tokenize"); exports.Token = _tokenize.Token; var _whitespace = _dereq_("./whitespace"); exports.isNewLine = _whitespace.isNewLine; exports.lineBreak = _whitespace.lineBreak; exports.lineBreakG = _whitespace.lineBreakG; var version = "3.1.0"; exports.version = version; // The main exported interface (under `self.acorn` when in the // browser) is a `parse` function that takes a code string and // returns an abstract syntax tree as specified by [Mozilla parser // API][api]. // // [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API function parse(input, options) { return new _state.Parser(options, input).parse(); } // This function tries to parse a single expression at a given // offset in a string. Useful for parsing mixed-language formats // that embed JavaScript expressions. function parseExpressionAt(input, pos, options) { var p = new _state.Parser(options, input, pos); p.nextToken(); return p.parseExpression(); } // Acorn is organized as a tokenizer and a recursive-descent parser. // The `tokenizer` export provides an interface to the tokenizer. function tokenizer(input, options) { return new _state.Parser(options, input); } },{"./expression":1,"./identifier":2,"./location":4,"./locutil":5,"./lval":6,"./node":7,"./options":8,"./parseutil":9,"./state":10,"./statement":11,"./tokencontext":12,"./tokenize":13,"./tokentype":14,"./whitespace":16}],4:[function(_dereq_,module,exports){ "use strict"; var _state = _dereq_("./state"); var _locutil = _dereq_("./locutil"); var pp = _state.Parser.prototype; // This function is used to raise exceptions on parse errors. It // takes an offset integer (into the current `input`) to indicate // the location of the error, attaches the position to the end // of the error message, and then raises a `SyntaxError` with that // message. pp.raise = function (pos, message) { var loc = _locutil.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.raiseRecoverable = pp.raise; pp.curPosition = function () { if (this.options.locations) { return new _locutil.Position(this.curLine, this.pos - this.lineStart); } }; },{"./locutil":5,"./state":10}],5:[function(_dereq_,module,exports){ "use strict"; exports.__esModule = true; exports.getLineInfo = getLineInfo; function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } var _whitespace = _dereq_("./whitespace"); // These are used when `options.locations` is on, for the // `startLoc` and `endLoc` properties. var Position = (function () { function Position(line, col) { _classCallCheck(this, Position); this.line = line; this.column = col; } Position.prototype.offset = function offset(n) { return new Position(this.line, this.column + n); }; return Position; })(); exports.Position = Position; var SourceLocation = function SourceLocation(p, start, end) { _classCallCheck(this, SourceLocation); this.start = start; this.end = end; if (p.sourceFile !== null) this.source = p.sourceFile; } // The `getLineInfo` function is mostly useful when the // `locations` option is off (for performance reasons) and you // want to find the line/column position for a given character // offset. `input` should be the code string that the offset refers // into. ; exports.SourceLocation = SourceLocation; function getLineInfo(input, offset) { for (var line = 1, cur = 0;;) { _whitespace.lineBreakG.lastIndex = cur; var match = _whitespace.lineBreakG.exec(input); if (match && match.index < offset) { ++line; cur = match.index + match[0].length; } else { return new Position(line, offset - cur); } } } },{"./whitespace":16}],6:[function(_dereq_,module,exports){ "use strict"; var _tokentype = _dereq_("./tokentype"); var _state = _dereq_("./state"); var _util = _dereq_("./util"); var pp = _state.Parser.prototype; // Convert existing expression atom to assignable pattern // if possible. pp.toAssignable = function (node, isBinding) { if (this.options.ecmaVersion >= 6 && node) { switch (node.type) { case "Identifier": case "ObjectPattern": case "ArrayPattern": 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.raise(prop.key.start, "Object pattern can't contain getter or setter"); this.toAssignable(prop.value, isBinding); } break; case "ArrayExpression": node.type = "ArrayPattern"; this.toAssignableList(node.elements, isBinding); break; case "AssignmentExpression": if (node.operator === "=") { node.type = "AssignmentPattern"; delete node.operator; // falls through to AssignmentPattern } else { this.raise(node.left.end, "Only '=' operator can be used for specifying default value."); break; } case "AssignmentPattern": if (node.right.type === "YieldExpression") this.raise(node.right.start, "Yield expression cannot be a default value"); break; case "ParenthesizedExpression": node.expression = this.toAssignable(node.expression, isBinding); break; case "MemberExpression": if (!isBinding) break; default: this.raise(node.start, "Assigning to rvalue"); } } return node; }; // Convert list of expression atoms to binding list. pp.toAssignableList = function (exprList, isBinding) { var end = exprList.length; if (end) { var last = exprList[end - 1]; if (last && last.type == "RestElement") { --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; } if (isBinding && 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.toAssignable(elt, isBinding); } return exprList; }; // Parses spread element. pp.parseSpread = function (refDestructuringErrors) { var node = this.startNode(); this.next(); node.argument = this.parseMaybeAssign(refDestructuringErrors); return this.finishNode(node, "SpreadElement"); }; pp.parseRest = function (allowNonIdent) { var node = this.startNode(); this.next(); // RestElement inside of a function parameter must be an identifier if (allowNonIdent) node.argument = this.type === _tokentype.types.name ? this.parseIdent() : this.unexpected();else node.argument = this.type === _tokentype.types.name || this.type === _tokentype.types.bracketL ? this.parseBindingAtom() : this.unexpected(); return this.finishNode(node, "RestElement"); }; // Parses lvalue (assignable) atom. pp.parseBindingAtom = function () { if (this.options.ecmaVersion < 6) return this.parseIdent(); switch (this.type) { case _tokentype.types.name: return this.parseIdent(); case _tokentype.types.bracketL: var node = this.startNode(); this.next(); node.elements = this.parseBindingList(_tokentype.types.bracketR, true, true); return this.finishNode(node, "ArrayPattern"); case _tokentype.types.braceL: return this.parseObj(true); default: this.unexpected(); } }; pp.parseBindingList = function (close, allowEmpty, allowTrailingComma, allowNonIdent) { var elts = [], first = true; while (!this.eat(close)) { if (first) first = false;else this.expect(_tokentype.types.comma); if (allowEmpty && this.type === _tokentype.types.comma) { elts.push(null); } else if (allowTrailingComma && this.afterTrailingComma(close)) { break; } else if (this.type === _tokentype.types.ellipsis) { var rest = this.parseRest(allowNonIdent); this.parseBindingListItem(rest); elts.push(rest); if (this.type === _tokentype.types.comma) this.raise(this.start, "Comma is not permitted after the rest element"); this.expect(close); break; } else { var elem = this.parseMaybeDefault(this.start, this.startLoc); this.parseBindingListItem(elem); elts.push(elem); } } return elts; }; pp.parseBindingListItem = function (param) { return param; }; // Parses assignment pattern around given atom if possible. pp.parseMaybeDefault = function (startPos, startLoc, left) { left = left || this.parseBindingAtom(); if (this.options.ecmaVersion < 6 || !this.eat(_tokentype.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. pp.checkLVal = function (expr, isBinding, checkClashes) { switch (expr.type) { case "Identifier": if (this.strict && this.reservedWordsStrictBind.test(expr.name)) this.raiseRecoverable(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode"); if (checkClashes) { if (_util.has(checkClashes, expr.name)) this.raiseRecoverable(expr.start, "Argument name clash"); checkClashes[expr.name] = true; } break; case "MemberExpression": if (isBinding) this.raiseRecoverable(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression"); break; case "ObjectPattern": for (var i = 0; i < expr.properties.length; i++) { this.checkLVal(expr.properties[i].value, isBinding, checkClashes); }break; case "ArrayPattern": for (var i = 0; i < expr.elements.length; i++) { var elem = expr.elements[i]; if (elem) this.checkLVal(elem, isBinding, checkClashes); } break; case "AssignmentPattern": this.checkLVal(expr.left, isBinding, checkClashes); break; case "RestElement": this.checkLVal(expr.argument, isBinding, checkClashes); break; case "ParenthesizedExpression": this.checkLVal(expr.expression, isBinding, checkClashes); break; default: this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " rvalue"); } }; },{"./state":10,"./tokentype":14,"./util":15}],7:[function(_dereq_,module,exports){ "use strict"; exports.__esModule = true; function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } var _state = _dereq_("./state"); var _locutil = _dereq_("./locutil"); var Node = function Node(parser, pos, loc) { _classCallCheck(this, Node); this.type = ""; this.start = pos; this.end = 0; if (parser.options.locations) this.loc = new _locutil.SourceLocation(parser, loc); if (parser.options.directSourceFile) this.sourceFile = parser.options.directSourceFile; if (parser.options.ranges) this.range = [pos, 0]; } // Start an AST node, attaching a start offset. ; exports.Node = Node; var pp = _state.Parser.prototype; pp.startNode = function () { return new Node(this, this.start, this.startLoc); }; pp.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; if (this.options.locations) node.loc.end = loc; if (this.options.ranges) node.range[1] = pos; return node; } pp.finishNode = function (node, type) { return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc); }; // Finish node at given position pp.finishNodeAt = function (node, type, pos, loc) { return finishNodeAt.call(this, node, type, pos, loc); }; },{"./locutil":5,"./state":10}],8:[function(_dereq_,module,exports){ "use strict"; exports.__esModule = true; exports.getOptions = getOptions; var _util = _dereq_("./util"); var _locutil = _dereq_("./locutil"); // A second optional argument can be given to further configure // the parser process. These options are recognized: var defaultOptions = { // `ecmaVersion` indicates the ECMAScript version to parse. Must // be either 3, or 5, or 6. This influences support for strict // mode, the set of reserved words, support for getters and // setters and other features. The default is 6. ecmaVersion: 6, // Source type ("script" or "module") for different semantics sourceType: "script", // `onInsertedSemicolon` can be a callback that will be called // when a semicolon is automatically inserted. It will be passed // th position of the comma as an offset, and if `locations` is // enabled, it is given the location as a `{line, column}` object // as second argument. onInsertedSemicolon: null, // `onTrailingComma` is similar to `onInsertedSemicolon`, but for // trailing commas. onTrailingComma: null, // By default, reserved words are only enforced if ecmaVersion >= 5. // Set `allowReserved` to a boolean value to explicitly turn this on // an off. When this option has the value "never", reserved words // and keywords can also not be used as property names. allowReserved: null, // When enabled, a return at the top level is not considered an // error. allowReturnOutsideFunction: false, // When enabled, import/export statements are not constrained to // appearing at the top of the program. allowImportExportEverywhere: false, // When enabled, hashbang directive in the beginning of file // is allowed and treated as a line comment. allowHashBang: false, // When `locations` is on, `loc` properties holding objects with // `start` and `end` properties in `{line, column}` form (with // line being 1-based and column 0-based) will be attached to the // nodes. locations: false, // A function can be passed as `onToken` option, which will // cause Acorn to call that function with object in the same // format as tokens returned from `tokenizer().getToken()`. Note // that you are not allowed to call the parser from the // callback—that will corrupt its internal state. onToken: null, // A function can be passed as `onComment` option, which will // cause Acorn to call that function with `(block, text, start, // end)` parameters whenever a comment is skipped. `block` is a // boolean indicating whether this is a block (`/* */`) comment, // `text` is the content of the comment, and `start` and `end` are // character offsets that denote the start and end of the comment. // When the `locations` option is on, two more parameters are // passed, the full `{line, column}` locations of the start and // end of the comments. Note that you are not allowed to call the // parser from the callback—that will corrupt its internal state. onComment: null, // Nodes have their start and end characters offsets recorded in // `start` and `end` properties (directly on the node, rather than // the `loc` object, which holds line/column data. To also add a // [semi-standardized][range] `range` property holding a `[start, // end]` array with the same numbers, set the `ranges` option to // `true`. // // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678 ranges: false, // It is possible to parse multiple files into a single AST by // passing the tree produced by parsing the first file as // `program` option in subsequent parses. This will add the // toplevel forms of the parsed file to the `Program` (top) node // of an existing parse tree. program: null, // When `locations` is on, you can pass this to record the source // file in every node's `loc` object. sourceFile: null, // This value, if given, is stored in every node, whether // `locations` is on or off. directSourceFile: null, // When enabled, parenthesized expressions are represented by // (non-standard) ParenthesizedExpression nodes preserveParens: false, plugins: {} }; exports.defaultOptions = defaultOptions; // Interpret and default an options object function getOptions(opts) { var options = {}; for (var opt in defaultOptions) { options[opt] = opts && _util.has(opts, opt) ? opts[opt] : defaultOptions[opt]; }if (options.allowReserved == null) options.allowReserved = options.ecmaVersion < 5; if (_util.isArray(options.onToken)) { (function () { var tokens = options.onToken; options.onToken = function (token) { return tokens.push(token); }; })(); } if (_util.isArray(options.onComment)) options.onComment = pushComment(options, options.onComment); return options; } function pushComment(options, array) { return function (block, text, start, end, startLoc, endLoc) { var comment = { type: block ? 'Block' : 'Line', value: text, start: start, end: end }; if (options.locations) comment.loc = new _locutil.SourceLocation(this, startLoc, endLoc); if (options.ranges) comment.range = [start, end]; array.push(comment); }; } },{"./locutil":5,"./util":15}],9:[function(_dereq_,module,exports){ "use strict"; exports.__esModule = true; function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } var _tokentype = _dereq_("./tokentype"); var _state = _dereq_("./state"); var _whitespace = _dereq_("./whitespace"); var pp = _state.Parser.prototype; // ## Parser utilities // Test whether a statement node is the string literal `"use strict"`. pp.isUseStrict = function (stmt) { return this.options.ecmaVersion >= 5 && stmt.type === "ExpressionStatement" && stmt.expression.type === "Literal" && stmt.expression.raw.slice(1, -1) === "use strict"; }; // 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(); return true; } else { return false; } }; // Tests whether parsed token is a contextual keyword. pp.isContextual = function (name) { return this.type === _tokentype.types.name && this.value === name; }; // Consumes contextual keyword if possible. pp.eatContextual = function (name) { return this.value === name && this.eat(_tokentype.types.name); }; // Asserts that following token is given contextual keyword. pp.expectContextual = function (name) { if (!this.eatContextual(name)) this.unexpected(); }; // Test whether a semicolon can be inserted at the current position. pp.canInsertSemicolon = function () { return this.type === _tokentype.types.eof || this.type === _tokentype.types.braceR || _whitespace.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); 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(_tokentype.types.semi) && !this.insertSemicolon()) this.unexpected(); }; pp.afterTrailingComma = function (tokType) { if (this.type == tokType) { if (this.options.onTrailingComma) this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); 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(); }; // Raise an unexpected token error. pp.unexpected = function (pos) { this.raise(pos != null ? pos : this.start, "Unexpected token"); }; var DestructuringErrors = function DestructuringErrors() { _classCallCheck(this, DestructuringErrors); this.shorthandAssign = 0; this.trailingComma = 0; }; exports.DestructuringErrors = DestructuringErrors; pp.checkPatternErrors = function (refDestructuringErrors, andThrow) { var trailing = refDestructuringErrors && refDestructuringErrors.trailingComma; if (!andThrow) return !!trailing; if (trailing) this.raise(trailing, "Comma is not permitted after the rest element"); }; pp.checkExpressionErrors = function (refDestructuringErrors, andThrow) { var pos = refDestructuringErrors && refDestructuringErrors.shorthandAssign; if (!andThrow) return !!pos; if (pos) this.raise(pos, "Shorthand property assignments are valid only in destructuring patterns"); }; },{"./state":10,"./tokentype":14,"./whitespace":16}],10:[function(_dereq_,module,exports){ "use strict"; exports.__esModule = true; function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } var _identifier = _dereq_("./identifier"); var _tokentype = _dereq_("./tokentype"); var _whitespace = _dereq_("./whitespace"); var _options = _dereq_("./options"); // Registered plugins var plugins = {}; exports.plugins = plugins; function keywordRegexp(words) { return new RegExp("^(" + words.replace(/ /g, "|") + ")$"); } var Parser = (function () { function Parser(options, input, startPos) { _classCallCheck(this, Parser); this.options = options = _options.getOptions(options); this.sourceFile = options.sourceFile; this.keywords = keywordRegexp(_identifier.keywords[options.ecmaVersion >= 6 ? 6 : 5]); var reserved = options.allowReserved ? "" : _identifier.reservedWords[options.ecmaVersion] + (options.sourceType == "module" ? " await" : ""); this.reservedWords = keywordRegexp(reserved); var reservedStrict = (reserved ? reserved + " " : "") + _identifier.reservedWords.strict; this.reservedWordsStrict = keywordRegexp(reservedStrict); this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + _identifier.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; // Load 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 = Math.max(0, this.input.lastIndexOf("\n", startPos)); this.curLine = this.input.slice(0, this.lineStart).split(_whitespace.lineBreak).length; } else { this.pos = this.lineStart = 0; this.curLine = 1; } // Properties of the current token: // Its type this.type = _tokentype.types.eof; // For tokens that include more information than their type, the value this.value = null; // Its start and end offset 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(); // Position information for the previous token 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; // Figure out if it's a module code. this.strict = this.inModule = options.sourceType === "module"; // Used to signify the start of a potential arrow function this.potentialArrowAt = -1; // Flags to track whether we are in a function, a generator. this.inFunction = this.inGenerator = false; // Labels in scope. this.labels = []; // If enabled, skip leading hashbang line. if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === '#!') this.skipLineComment(2); } // DEPRECATED Kept for backwards compatibility until 3.0 in case a plugin uses them Parser.prototype.isKeyword = function isKeyword(word) { return this.keywords.test(word); }; Parser.prototype.isReservedWord = function isReservedWord(word) { return this.reservedWords.test(word); }; Parser.prototype.extend = function extend(name, f) { this[name] = f(this[name]); }; Parser.prototype.loadPlugins = function loadPlugins(pluginConfigs) { for (var _name in pluginConfigs) { var plugin = plugins[_name]; if (!plugin) throw new Error("Plugin '" + _name + "' not found"); plugin(this, pluginConfigs[_name]); } }; Parser.prototype.parse = function parse() { var node = this.options.program || this.startNode(); this.nextToken(); return this.parseTopLevel(node); }; return Parser; })(); exports.Parser = Parser; },{"./identifier":2,"./options":8,"./tokentype":14,"./whitespace":16}],11:[function(_dereq_,module,exports){ "use strict"; var _tokentype = _dereq_("./tokentype"); var _state = _dereq_("./state"); var _whitespace = _dereq_("./whitespace"); var _identifier = _dereq_("./identifier"); var _parseutil = _dereq_("./parseutil"); var pp = _state.Parser.prototype; // ### Statement parsing // Parse a program. Initializes the parser, reads any number of // statements, and wraps them in a Program node. Optionally takes a // `program` argument. If present, the statements will be appended // to its body instead of creating a new node. pp.parseTopLevel = function (node) { var first = true; if (!node.body) node.body = []; while (this.type !== _tokentype.types.eof) { var stmt = this.parseStatement(true, true); node.body.push(stmt); if (first) { if (this.isUseStrict(stmt)) this.setStrict(true); first = false; } } this.next(); if (this.options.ecmaVersion >= 6) { node.sourceType = this.options.sourceType; } return this.finishNode(node, "Program"); }; var loopLabel = { kind: "loop" }, switchLabel = { kind: "switch" }; pp.isLet = function () { if (this.type !== _tokentype.types.name || this.options.ecmaVersion < 6 || this.value != "let") return false; _whitespace.skipWhiteSpace.lastIndex = this.pos; var skip = _whitespace.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 (_identifier.isIdentifierStart(nextCh, true)) { for (var pos = next + 1; _identifier.isIdentifierChar(this.input.charCodeAt(pos, true)); ++pos) {} var ident = this.input.slice(next, pos); if (!this.isKeyword(ident)) return true; } return false; }; // Parse a single statement. // // If expecting a statement and finding a slash operator, parse a // regular expression literal. This is to handle cases like // `if (foo) /blah/.exec(foo)`, where looking at the previous token // does not help. pp.parseStatement = function (declaration, topLevel) { var starttype = this.type, node = this.startNode(), kind = undefined; if (this.isLet()) { starttype = _tokentype.types._var; kind = "let"; } // Most types of statements are recognized by the keyword they // start with. Many are trivial to parse, some require a bit of // complexity. switch (starttype) { case _tokentype.types._break:case _tokentype.types._continue: return this.parseBreakContinueStatement(node, starttype.keyword); case _tokentype.types._debugger: return this.parseDebuggerStatement(node); case _tokentype.types._do: return this.parseDoStatement(node); case _tokentype.types._for: return this.parseForStatement(node); case _tokentype.types._function: if (!declaration && this.options.ecmaVersion >= 6) this.unexpected(); return this.parseFunctionStatement(node); case _tokentype.types._class: if (!declaration) this.unexpected(); return this.parseClass(node, true); case _tokentype.types._if: return this.parseIfStatement(node); case _tokentype.types._return: return this.parseReturnStatement(node); case _tokentype.types._switch: return this.parseSwitchStatement(node); case _tokentype.types._throw: return this.parseThrowStatement(node); case _tokentype.types._try: return this.parseTryStatement(node); case _tokentype.types._const:case _tokentype.types._var: kind = kind || this.value; if (!declaration && kind != "var") this.unexpected(); return this.parseVarStatement(node, kind); case _tokentype.types._while: return this.parseWhileStatement(node); case _tokentype.types._with: return this.parseWithStatement(node); case _tokentype.types.braceL: return this.parseBlock(); case _tokentype.types.semi: return this.parseEmptyStatement(node); case _tokentype.types._export: case _tokentype.types._import: if (!this.options.allowImportExportEverywhere) { if (!topLevel) 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'"); } return starttype === _tokentype.types._import ? this.parseImport(node) : this.parseExport(node); // If the statement does not start with a statement keyword or a // brace, it's an ExpressionStatement or LabeledStatement. We // simply start parsing an expression, and afterwards, if the // next token is a colon and the expression was a simple // Identifier node, we switch to interpreting it as a label. default: var maybeName = this.value, expr = this.parseExpression(); if (starttype === _tokentype.types.name && expr.type === "Identifier" && this.eat(_tokentype.types.colon)) return this.parseLabeledStatement(node, maybeName, expr);else return this.parseExpressionStatement(node, expr); } }; pp.parseBreakContinueStatement = function (node, keyword) { var isBreak = keyword == "break"; this.next(); if (this.eat(_tokentype.types.semi) || this.insertSemicolon()) node.label = null;else if (this.type !== _tokentype.types.name) this.unexpected();else { node.label = this.parseIdent(); this.semicolon(); } // Verify that there is an actual destination to break or // continue to. for (var i = 0; i < this.labels.length; ++i) { var lab = this.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 (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword); return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement"); }; pp.parseDebuggerStatement = function (node) { this.next(); this.semicolon(); return this.finishNode(node, "DebuggerStatement"); }; pp.parseDoStatement = function (node) { this.next(); this.labels.push(loopLabel); node.body = this.parseStatement(false); this.labels.pop(); this.expect(_tokentype.types._while); node.test = this.parseParenExpression(); if (this.options.ecmaVersion >= 6) this.eat(_tokentype.types.semi);else 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` // statement or expression, disallowing the `in` operator (see // the second parameter to `parseExpression`), and then check // whether the next token is `in` or `of`. When there is no init // part (semicolon immediately after the opening parenthesis), it // is a regular `for` loop. pp.parseForStatement = function (node) { this.next(); this.labels.push(loopLabel); this.expect(_tokentype.types.parenL); if (this.type === _tokentype.types.semi) return this.parseFor(node, null); var isLet = this.isLet(); if (this.type === _tokentype.types._var || this.type === _tokentype.types._const || isLet) { var _init = this.startNode(), kind = isLet ? "let" : this.value; this.next(); this.parseVar(_init, true, kind); this.finishNode(_init, "VariableDeclaration"); if ((this.type === _tokentype.types._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) && _init.declarations.length === 1 && !(kind !== "var" && _init.declarations[0].init)) return this.parseForIn(node, _init); return this.parseFor(node, _init); } var refDestructuringErrors = new _parseutil.DestructuringErrors(); var init = this.parseExpression(true, refDestructuringErrors); if (this.type === _tokentype.types._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) { this.checkPatternErrors(refDestructuringErrors, true); this.toAssignable(init); this.checkLVal(init); return this.parseForIn(node, init); } else { this.checkExpressionErrors(refDestructuringErrors, true); } return this.parseFor(node, init); }; pp.parseFunctionStatement = function (node) { this.next(); return this.parseFunction(node, true); }; pp.parseIfStatement = function (node) { this.next(); node.test = this.parseParenExpression(); node.consequent = this.parseStatement(false); node.alternate = this.eat(_tokentype.types._else) ? this.parseStatement(false) : null; return this.finishNode(node, "IfStatement"); }; pp.parseReturnStatement = function (node) { if (!this.inFunction && !this.options.allowReturnOutsideFunction) 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(_tokentype.types.semi) || this.insertSemicolon()) node.argument = null;else { node.argument = this.parseExpression();this.semicolon(); } return this.finishNode(node, "ReturnStatement"); }; pp.parseSwitchStatement = function (node) { this.next(); node.discriminant = this.parseParenExpression(); node.cases = []; this.expect(_tokentype.types.braceL); this.labels.push(switchLabel); // Statements under must be grouped (by label) in SwitchCase // nodes. `cur` is used to keep the node that we are currently // adding statements to. for (var cur, sawDefault = false; this.type != _tokentype.types.braceR;) { if (this.type === _tokentype.types._case || this.type === _tokentype.types._default) { var isCase = this.type === _tokentype.types._case; if (cur) this.finishNode(cur, "SwitchCase"); node.cases.push(cur = this.startNode()); cur.consequent = []; this.next(); if (isCase) { cur.test = this.parseExpression(); } else { if (sawDefault) this.raiseRecoverable(this.lastTokStart, "Multiple default clauses"); sawDefault = true; cur.test = null; } this.expect(_tokentype.types.colon); } else { if (!cur) this.unexpected(); cur.consequent.push(this.parseStatement(true)); } } if (cur) this.finishNode(cur, "SwitchCase"); this.next(); // Closing brace this.labels.pop(); return this.finishNode(node, "SwitchStatement"); }; pp.parseThrowStatement = function (node) { this.next(); if (_whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) 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 = []; pp.parseTryStatement = function (node) { this.next(); node.block = this.parseBlock(); node.handler = null; if (this.type === _tokentype.types._catch) { var clause = this.startNode(); this.next(); this.expect(_tokentype.types.parenL); clause.param = this.parseBindingAtom(); this.checkLVal(clause.param, true); this.expect(_tokentype.types.parenR); clause.body = this.parseBlock(); node.handler = this.finishNode(clause, "CatchClause"); } node.finalizer = this.eat(_tokentype.types._finally) ? this.parseBlock() : null; if (!node.handler && !node.finalizer) this.raise(node.start, "Missing catch or finally clause"); return this.finishNode(node, "TryStatement"); }; pp.parseVarStatement = function (node, kind) { this.next(); this.parseVar(node, false, kind); this.semicolon(); return this.finishNode(node, "VariableDeclaration"); }; pp.parseWhileStatement = function (node) { this.next(); node.test = this.parseParenExpression(); this.labels.push(loopLabel); node.body = this.parseStatement(false); this.labels.pop(); return this.finishNode(node, "WhileStatement"); }; pp.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); return this.finishNode(node, "WithStatement"); }; pp.parseEmptyStatement = function (node) { this.next(); return this.finishNode(node, "EmptyStatement"); }; pp.parseLabeledStatement = function (node, maybeName, expr) { for (var i = 0; i < this.labels.length; ++i) { if (this.labels[i].name === maybeName) this.raise(expr.start, "Label '" + maybeName + "' is already declared"); }var kind = this.type.isLoop ? "loop" : this.type === _tokentype.types._switch ? "switch" : null; for (var i = this.labels.length - 1; i >= 0; i--) { var label = this.labels[i]; if (label.statementStart == node.start) { label.statementStart = this.start; label.kind = kind; } else break; } this.labels.push({ name: maybeName, kind: kind, statementStart: this.start }); node.body = this.parseStatement(true); this.labels.pop(); node.label = expr; return this.finishNode(node, "LabeledStatement"); }; pp.parseExpressionStatement = function (node, expr) { 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 // function bodies). pp.parseBlock = function (allowStrict) { var node = this.startNode(), first = true, oldStrict = undefined; node.body = []; this.expect(_tokentype.types.braceL); while (!this.eat(_tokentype.types.braceR)) { var stmt = this.parseStatement(true); node.body.push(stmt); if (first && allowStrict && this.isUseStrict(stmt)) { oldStrict = this.strict; this.setStrict(this.strict = true); } first = false; } if (oldStrict === false) this.setStrict(false); 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.parseFor = function (node, init) { node.init = init; this.expect(_tokentype.types.semi); node.test = this.type === _tokentype.types.semi ? null : this.parseExpression(); this.expect(_tokentype.types.semi); node.update = this.type === _tokentype.types.parenR ? null : this.parseExpression(); this.expect(_tokentype.types.parenR); 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.parseForIn = function (node, init) { var type = this.type === _tokentype.types._in ? "ForInStatement" : "ForOfStatement"; this.next(); node.left = init; node.right = this.parseExpression(); this.expect(_tokentype.types.parenR); node.body = this.parseStatement(false); this.labels.pop(); return this.finishNode(node, type); }; // Parse a list of variable declarations. pp.parseVar = function (node, isFor, kind) { node.declarations = []; node.kind = kind; for (;;) { var decl = this.startNode(); this.parseVarId(decl); if (this.eat(_tokentype.types.eq)) { decl.init = this.parseMaybeAssign(isFor); } else if (kind === "const" && !(this.type === _tokentype.types._in || this.options.ecmaVersion >= 6 && this.isContextual("of"))) { this.unexpected(); } else if (decl.id.type != "Identifier" && !(isFor && (this.type === _tokentype.types._in || this.isContextual("of")))) { this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value"); } else { decl.init = null; } node.declarations.push(this.finishNode(decl, "VariableDeclarator")); if (!this.eat(_tokentype.types.comma)) break; } return node; }; pp.parseVarId = function (decl) { decl.id = this.parseBindingAtom(); this.checkLVal(decl.id, true); }; // Parse a function declaration or literal (depending on the // `isStatement` parameter). pp.parseFunction = function (node, isStatement, allowExpressionBody) { this.initFunction(node); if (this.options.ecmaVersion >= 6) node.generator = this.eat(_tokentype.types.star); var oldInGen = this.inGenerator; this.inGenerator = node.generator; if (isStatement || this.type === _tokentype.types.name) node.id = this.parseIdent(); this.parseFunctionParams(node); this.parseFunctionBody(node, allowExpressionBody); this.inGenerator = oldInGen; return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression"); }; pp.parseFunctionParams = function (node) { this.expect(_tokentype.types.parenL); node.params = this.parseBindingList(_tokentype.types.parenR, false, false, true); }; // Parse a class declaration or literal (depending on the // `isStatement` parameter). pp.parseClass = function (node, isStatement) { this.next(); this.parseClassId(node, isStatement); this.parseClassSuper(node); var classBody = this.startNode(); var hadConstructor = false; classBody.body = []; this.expect(_tokentype.types.braceL); while (!this.eat(_tokentype.types.braceR)) { if (this.eat(_tokentype.types.semi)) continue; var method = this.startNode(); var isGenerator = this.eat(_tokentype.types.star); var isMaybeStatic = this.type === _tokentype.types.name && this.value === "static"; this.parsePropertyName(method); method["static"] = isMaybeStatic && this.type !== _tokentype.types.parenL; if (method["static"]) { if (isGenerator) this.unexpected(); isGenerator = this.eat(_tokentype.types.star); this.parsePropertyName(method); } method.kind = "method"; var isGetSet = false; if (!method.computed) { var key = method.key; if (!isGenerator && key.type === "Identifier" && this.type !== _tokentype.types.parenL && (key.name === "get" || key.name === "set")) { isGetSet = true; method.kind = key.name; key = this.parsePropertyName(method); } if (!method["static"] && (key.type === "Identifier" && key.name === "constructor" || key.type === "Literal" && key.value === "constructor")) { if (hadConstructor) this.raise(key.start, "Duplicate constructor in the same class"); if (isGetSet) this.raise(key.start, "Constructor can't have get/set modifier"); if (isGenerator) this.raise(key.start, "Constructor can't be a generator"); method.kind = "constructor"; hadConstructor = true; } } this.parseClassMethod(classBody, method, isGenerator); if (isGetSet) { var paramCount = method.kind === "get" ? 0 : 1; if (method.value.params.length !== paramCount) { var start = method.value.start; if (method.kind === "get") this.raiseRecoverable(start, "getter should have no params");else this.raiseRecoverable(start, "setter should have exactly one param"); } if (method.kind === "set" && method.value.params[0].type === "RestElement") this.raise(method.value.params[0].start, "Setter cannot use rest params"); } } node.body = this.finishNode(classBody, "ClassBody"); return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression"); }; pp.parseClassMethod = function (classBody, method, isGenerator) { method.value = this.parseMethod(isGenerator); classBody.body.push(this.finishNode(method, "MethodDefinition")); }; pp.parseClassId = function (node, isStatement) { node.id = this.type === _tokentype.types.name ? this.parseIdent() : isStatement ? this.unexpected() : null; }; pp.parseClassSuper = function (node) { node.superClass = this.eat(_tokentype.types._extends) ? this.parseExprSubscripts() : null; }; // Parses module export declaration. pp.parseExport = function (node) { this.next(); // export * from '...' if (this.eat(_tokentype.types.star)) { this.expectContextual("from"); node.source = this.type === _tokentype.types.string ? this.parseExprAtom() : this.unexpected(); this.semicolon(); return this.finishNode(node, "ExportAllDeclaration"); } if (this.eat(_tokentype.types._default)) { // export default ... var parens = this.type == _tokentype.types.parenL; var expr = this.parseMaybeAssign(); var needsSemi = true; if (!parens && (expr.type == "FunctionExpression" || expr.type == "ClassExpression")) { needsSemi = false; if (expr.id) { expr.type = expr.type == "FunctionExpression" ? "FunctionDeclaration" : "ClassDeclaration"; } } node.declaration = expr; if (needsSemi) this.semicolon(); return this.finishNode(node, "ExportDefaultDeclaration"); } // export var|const|let|function|class ... if (this.shouldParseExportStatement()) { node.declaration = this.parseStatement(true); node.specifiers = []; node.source = null; } else { // export { x, y as z } [from '...'] node.declaration = null; node.specifiers = this.parseExportSpecifiers(); if (this.eatContextual("from")) { node.source = this.type === _tokentype.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.keywords.test(node.specifiers[i].local.name) || this.reservedWords.test(node.specifiers[i].local.name)) { this.unexpected(node.specifiers[i].local.start); } } node.source = null; } this.semicolon(); } return this.finishNode(node, "ExportNamedDeclaration"); }; pp.shouldParseExportStatement = function () { return this.type.keyword || this.isLet(); }; // Parses a comma-separated list of module exports. pp.parseExportSpecifiers = function () { var nodes = [], first = true; // export { x, y as z } [from '...'] this.expect(_tokentype.types.braceL); while (!this.eat(_tokentype.types.braceR)) { if (!first) { this.expect(_tokentype.types.comma); if (this.afterTrailingComma(_tokentype.types.braceR)) break; } else first = false; var node = this.startNode(); node.local = this.parseIdent(this.type === _tokentype.types._default); node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local; nodes.push(this.finishNode(node, "ExportSpecifier")); } return nodes; }; // Parses import declaration. pp.parseImport = function (node) { this.next(); // import '...' if (this.type === _tokentype.types.string) { node.specifiers = empty; node.source = this.parseExprAtom(); } else { node.specifiers = this.parseImportSpecifiers(); this.expectContextual("from"); node.source = this.type === _tokentype.types.string ? this.parseExprAtom() : this.unexpected(); } this.semicolon(); return this.finishNode(node, "ImportDeclaration"); }; // Parses a comma-separated list of module imports. pp.parseImportSpecifiers = function () { var nodes = [], first = true; if (this.type === _tokentype.types.name) { // import defaultObj, { x, y as z } from '...' var node = this.startNode(); node.local = this.parseIdent(); this.checkLVal(node.local, true); nodes.push(this.finishNode(node, "ImportDefaultSpecifier")); if (!this.eat(_tokentype.types.comma)) return nodes; } if (this.type === _tokentype.types.star) { var node = this.startNode(); this.next(); this.expectContextual("as"); node.local = this.parseIdent(); this.checkLVal(node.local, true); nodes.push(this.finishNode(node, "ImportNamespaceSpecifier")); return nodes; } this.expect(_tokentype.types.braceL); while (!this.eat(_tokentype.types.braceR)) { if (!first) { this.expect(_tokentype.types.comma); if (this.afterTrailingComma(_tokentype.types.braceR)) break; } else first = false; var node = this.startNode(); node.imported = this.parseIdent(true); if (this.eatContextual("as")) { node.local = this.parseIdent(); } else { node.local = node.imported; if (this.isKeyword(node.local.name)) this.unexpected(node.local.start); if (this.reservedWordsStrict.test(node.local.name)) this.raise(node.local.start, "The keyword '" + node.local.name + "' is reserved"); } this.checkLVal(node.local, true); nodes.push(this.finishNode(node, "ImportSpecifier")); } return nodes; }; },{"./identifier":2,"./parseutil":9,"./state":10,"./tokentype":14,"./whitespace":16}],12:[function(_dereq_,module,exports){ // 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 "use strict"; exports.__esModule = true; function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } var _state = _dereq_("./state"); var _tokentype = _dereq_("./tokentype"); var _whitespace = _dereq_("./whitespace"); var TokContext = function TokContext(token, isExpr, preserveSpace, override) { _classCallCheck(this, TokContext); this.token = token; this.isExpr = !!isExpr; this.preserveSpace = !!preserveSpace; this.override = override; }; exports.TokContext = TokContext; var types = { b_stat: new TokContext("{", false), b_expr: new TokContext("{", true), b_tmpl: new TokContext("${", true), p_stat: new TokContext("(", false), p_expr: new TokContext("(", true), q_tmpl: new TokContext("`", true, true, function (p) { return p.readTmplToken(); }), f_expr: new TokContext("function", true) }; exports.types = types; var pp = _state.Parser.prototype; pp.initialContext = function () { return [types.b_stat]; }; pp.braceIsBlock = function (prevType) { if (prevType === _tokentype.types.colon) { var _parent = this.curContext(); if (_parent === types.b_stat || _parent === types.b_expr) return !_parent.isExpr; } if (prevType === _tokentype.types._return) return _whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.start)); if (prevType === _tokentype.types._else || prevType === _tokentype.types.semi || prevType === _tokentype.types.eof || prevType === _tokentype.types.parenR) return true; if (prevType == _tokentype.types.braceL) return this.curContext() === types.b_stat; return !this.exprAllowed; }; pp.updateContext = function (prevType) { var update = undefined, type = this.type; if (type.keyword && prevType == _tokentype.types.dot) this.exprAllowed = false;else if (update = type.updateContext) update.call(this, prevType);else this.exprAllowed = type.beforeExpr; }; // Token-specific context update code _tokentype.types.parenR.updateContext = _tokentype.types.braceR.updateContext = function () { if (this.context.length == 1) { this.exprAllowed = true; return; } var out = this.context.pop(); if (out === types.b_stat && this.curContext() === types.f_expr) { this.context.pop(); this.exprAllowed = false; } else if (out === types.b_tmpl) { this.exprAllowed = true; } else { this.exprAllowed = !out.isExpr; } }; _tokentype.types.braceL.updateContext = function (prevType) { this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr); this.exprAllowed = true; }; _tokentype.types.dollarBraceL.updateContext = function () { this.context.push(types.b_tmpl); this.exprAllowed = true; }; _tokentype.types.parenL.updateContext = function (prevType) { var statementParens = prevType === _tokentype.types._if || prevType === _tokentype.types._for || prevType === _tokentype.types._with || prevType === _tokentype.types._while; this.context.push(statementParens ? types.p_stat : types.p_expr); this.exprAllowed = true; }; _tokentype.types.incDec.updateContext = function () { // tokExprAllowed stays unchanged }; _tokentype.types._function.updateContext = function (prevType) { if (prevType.beforeExpr && prevType !== _tokentype.types.semi && prevType !== _tokentype.types._else && (prevType !== _tokentype.types.colon || this.curContext() !== types.b_stat)) this.context.push(types.f_expr); this.exprAllowed = false; }; _tokentype.types.backQuote.updateContext = function () { if (this.curContext() === types.q_tmpl) this.context.pop();else this.context.push(types.q_tmpl); this.exprAllowed = false; }; },{"./state":10,"./tokentype":14,"./whitespace":16}],13:[function(_dereq_,module,exports){ "use strict"; exports.__esModule = true; function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } var _identifier = _dereq_("./identifier"); var _tokentype = _dereq_("./tokentype"); var _state = _dereq_("./state"); var _locutil = _dereq_("./locutil"); var _whitespace = _dereq_("./whitespace"); // 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) { _classCallCheck(this, Token); this.type = p.type; this.value = p.value; this.start = p.start; this.end = p.end; if (p.options.locations) this.loc = new _locutil.SourceLocation(p, p.startLoc, p.endLoc); if (p.options.ranges) this.range = [p.start, p.end]; } // ## Tokenizer ; exports.Token = Token; var pp = _state.Parser.prototype; // Are we running under Rhino? var isRhino = typeof Packages == "object" && Object.prototype.toString.call(Packages) == "[object JavaPackage]"; // Move to the next token pp.next = function () { if (this.options.onToken) this.options.onToken(new Token(this)); this.lastTokEnd = this.end; this.lastTokStart = this.start; this.lastTokEndLoc = this.endLoc; this.lastTokStartLoc = this.startLoc; this.nextToken(); }; pp.getToken = function () { this.next(); return new Token(this); }; // If we're in an ES6 environment, make parsers iterable if (typeof Symbol !== "undefined") pp[Symbol.iterator] = function () { var self = this; return { next: function next() { var token = self.getToken(); return { done: token.type === _tokentype.types.eof, value: token }; } }; }; // Toggle strict mode. Re-reads the next number or string to please // pedantic tests (`"use strict"; 010;` should fail). pp.setStrict = function (strict) { this.strict = strict; if (this.type !== _tokentype.types.num && this.type !== _tokentype.types.string) return; this.pos = this.start; if (this.options.locations) { while (this.pos < this.lineStart) { this.lineStart = this.input.lastIndexOf("\n", this.lineStart - 2) + 1; --this.curLine; } } this.nextToken(); }; pp.curContext = function () { return this.context[this.context.length - 1]; }; // Read a single token, updating the parser object's token-related // properties. pp.nextToken = function () { 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(_tokentype.types.eof); if (curContext.override) return curContext.override(this);else this.readToken(this.fullCharCodeAtPos()); }; pp.readToken = function (code) { // Identifier or keyword. '\uXXXX' sequences are allowed in // identifiers, so '\' also dispatches to that. if (_identifier.isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */) return this.readWord(); return this.getTokenFromCode(code); }; pp.fullCharCodeAtPos = function () { 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.skipBlockComment = function () { 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) { _whitespace.lineBreakG.lastIndex = start; var match = undefined; while ((match = _whitespace.lineBreakG.exec(this.input)) && match.index < this.pos) { ++this.curLine; this.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()); }; pp.skipLineComment = function (startSkip) { 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.pos; ch = this.input.charCodeAt(this.pos); } if (this.options.onComment) 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. pp.skipSpace = function () { loop: while (this.pos < this.input.length) { var ch = this.input.charCodeAt(this.pos); switch (ch) { case 32:case 160: // ' ' ++this.pos; break; case 13: if (this.input.charCodeAt(this.pos + 1) === 10) { ++this.pos; } case 10:case 8232:case 8233: ++this.pos; if (this.options.locations) { ++this.curLine; this.lineStart = this.pos; } break; case 47: // '/' switch (this.input.charCodeAt(this.pos + 1)) { case 42: // '*' this.skipBlockComment(); break; case 47: this.skipLineComment(2); break; default: break loop; } break; default: if (ch > 8 && ch < 14 || ch >= 5760 && _whitespace.nonASCIIwhitespace.test(String.fromCharCode(ch))) { ++this.pos; } else { break loop; } } } }; // Called at the end of every token. Sets `end`, `val`, and // maintains `context` and `exprAllowed`, and skips the space after // the token, so that the next one's `start` will point at the // right position. pp.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.updateContext(prevType); }; // ### Token reading // This is the function that is called to fetch the next token. It // is somewhat obscure, because it works in character codes rather // than characters, and because operator parsing has been inlined // into it. // // All in the name of speed. // pp.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); if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.' this.pos += 3; return this.finishToken(_tokentype.types.ellipsis); } else { ++this.pos; return this.finishToken(_tokentype.types.dot); } }; pp.readToken_slash = function () { // '/' var next = this.input.charCodeAt(this.pos + 1); if (this.exprAllowed) { ++this.pos;return this.readRegexp(); } if (next === 61) return this.finishOp(_tokentype.types.assign, 2); return this.finishOp(_tokentype.types.slash, 1); }; pp.readToken_mult_modulo_exp = function (code) { // '%*' var next = this.input.charCodeAt(this.pos + 1); var size = 1; var tokentype = code === 42 ? _tokentype.types.star : _tokentype.types.modulo; // exponentiation operator ** and **= if (this.options.ecmaVersion >= 7 && next === 42) { ++size; tokentype = _tokentype.types.starstar; next = this.input.charCodeAt(this.pos + 2); } if (next === 61) return this.finishOp(_tokentype.types.assign, size + 1); return this.finishOp(tokentype, size); }; pp.readToken_pipe_amp = function (code) { // '|&' var next = this.input.charCodeAt(this.pos + 1); if (next === code) return this.finishOp(code === 124 ? _tokentype.types.logicalOR : _tokentype.types.logicalAND, 2); if (next === 61) return this.finishOp(_tokentype.types.assign, 2); return this.finishOp(code === 124 ? _tokentype.types.bitwiseOR : _tokentype.types.bitwiseAND, 1); }; pp.readToken_caret = function () { // '^' var next = this.input.charCodeAt(this.pos + 1); if (next === 61) return this.finishOp(_tokentype.types.assign, 2); return this.finishOp(_tokentype.types.bitwiseXOR, 1); }; pp.readToken_plus_min = function (code) { // '+-' var next = this.input.charCodeAt(this.pos + 1); if (next === code) { if (next == 45 && this.input.charCodeAt(this.pos + 2) == 62 && _whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.pos))) { // A `-->` line comment this.skipLineComment(3); this.skipSpace(); return this.nextToken(); } return this.finishOp(_tokentype.types.incDec, 2); } if (next === 61) return this.finishOp(_tokentype.types.assign, 2); return this.finishOp(_tokentype.types.plusMin, 1); }; pp.readToken_lt_gt = function (code) { // '<>' 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(_tokentype.types.assign, size + 1); return this.finishOp(_tokentype.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(); // `