diff --git a/package-lock.json b/package-lock.json index a80e4ba..81a298f 100644 --- a/package-lock.json +++ b/package-lock.json @@ -332,8 +332,7 @@ "deep-is": { "version": "0.1.3", "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.3.tgz", - "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=", - "dev": true + "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=" }, "define-properties": { "version": "1.1.3", @@ -395,6 +394,31 @@ "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=", "dev": true }, + "escodegen": { + "version": "1.11.1", + "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-1.11.1.tgz", + "integrity": "sha512-JwiqFD9KdGVVpeuRa68yU3zZnBEOcPs0nKW7wZzXky8Z7tffdYUHbe11bPCV5jYlK6DVdKLWLm0f5I/QlL0Kmw==", + "requires": { + "esprima": "^3.1.3", + "estraverse": "^4.2.0", + "esutils": "^2.0.2", + "optionator": "^0.8.1", + "source-map": "~0.6.1" + }, + "dependencies": { + "esprima": { + "version": "3.1.3", + "resolved": "https://registry.npmjs.org/esprima/-/esprima-3.1.3.tgz", + "integrity": "sha1-/cpRzuYTOJXjyI1TXOSdv/YqRjM=" + }, + "source-map": { + "version": "0.6.1", + "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz", + "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==", + "optional": true + } + } + }, "eslint": { "version": "5.14.1", "resolved": "https://registry.npmjs.org/eslint/-/eslint-5.14.1.tgz", @@ -652,8 +676,7 @@ "esprima": { "version": "4.0.1", "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz", - "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==", - "dev": true + "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==" }, "esquery": { "version": "1.0.1", @@ -676,14 +699,12 @@ "estraverse": { "version": "4.2.0", "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-4.2.0.tgz", - "integrity": "sha1-De4/7TH81GlhjOc0IJn8GvoL2xM=", - "dev": true + "integrity": "sha1-De4/7TH81GlhjOc0IJn8GvoL2xM=" }, "esutils": { "version": "2.0.2", "resolved": "https://registry.npmjs.org/esutils/-/esutils-2.0.2.tgz", - "integrity": "sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=", - "dev": true + "integrity": "sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=" }, "external-editor": { "version": "3.0.3", @@ -711,8 +732,7 @@ "fast-levenshtein": { "version": "2.0.6", "resolved": "https://registry.npmjs.org/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz", - "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=", - "dev": true + "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=" }, "figures": { "version": "2.0.0", @@ -1012,7 +1032,6 @@ "version": "0.3.0", "resolved": "https://registry.npmjs.org/levn/-/levn-0.3.0.tgz", "integrity": "sha1-OwmSTt+fCDwEkP3UwLxEIeBHZO4=", - "dev": true, "requires": { "prelude-ls": "~1.1.2", "type-check": "~0.3.2" @@ -1043,8 +1062,7 @@ "lodash": { "version": "4.17.11", "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz", - "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==", - "dev": true + "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==" }, "loose-envify": { "version": "1.4.0", @@ -1186,7 +1204,6 @@ "version": "0.8.2", "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.2.tgz", "integrity": "sha1-NkxeQJ0/TWMB1sC0wFu6UBgK62Q=", - "dev": true, "requires": { "deep-is": "~0.1.3", "fast-levenshtein": "~2.0.4", @@ -1301,8 +1318,7 @@ "prelude-ls": { "version": "1.1.2", "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.1.2.tgz", - "integrity": "sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=", - "dev": true + "integrity": "sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=" }, "progress": { "version": "2.0.3", @@ -1652,7 +1668,6 @@ "version": "0.3.2", "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz", "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=", - "dev": true, "requires": { "prelude-ls": "~1.1.2" } @@ -1688,8 +1703,7 @@ "wordwrap": { "version": "1.0.0", "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz", - "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=", - "dev": true + "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=" }, "wrappy": { "version": "1.0.2", diff --git a/package.json b/package.json index 78428e9..2c22e3e 100644 --- a/package.json +++ b/package.json @@ -20,8 +20,12 @@ "eslint-plugin-react": "^7.12.4" }, "dependencies": { + "escodegen": "^1.11.1", "eslint-config-airbnb": "^17.1.0", "eslint-plugin-jsx-a11y": "^6.2.1", + "esprima": "^4.0.1", + "estraverse": "^4.2.0", + "lodash": "^4.17.11", "react": "^16.8.1", "react-dom": "^16.8.1" } diff --git a/src/browser/chrome/background.js b/src/browser/chrome/background.js index 39aea0c..0cde898 100644 --- a/src/browser/chrome/background.js +++ b/src/browser/chrome/background.js @@ -1,3 +1,5 @@ +const parseAndGenerate = require('./parser'); + chrome.tabs.onUpdated.addListener((id, info, tab) => { if (tab.status !== 'complete' || tab.url.startsWith('chrome')) return; @@ -18,15 +20,21 @@ chrome.runtime.onMessage.addListener((msg) => { } }); -// let shouldRedirect = true; -// chrome.webRequest.onBeforeRequest.addListener( -// function(details) { -// if (details.type === 'script' && shouldRedirect) { -// console.log('redirecting... ORIGINAL: ', details); -// shouldRedirect = false; -// return { redirectUrl: chrome.extension.getURL('hack.js') }; -// } -// }, -// { urls: [""] }, -// ["blocking"] -// ); +chrome.webRequest.onBeforeRequest.addListener( + (request) => { + if (request.type === 'script' && !request.url.startsWith('chrome')) { + console.log('redirecting... ORIGINAL: ', request); + fetch(request.url) + .then(r => r.text()) + .then((codeString) => { + const editedCode = parseAndGenerate(codeString); + if (!editedCode) return { redirectUrl: request.url }; + //TODO: Define sendMessage and redirectURL + // sendMessageToContent(editedCode); + // return { redirectUrl: 'javascript:' }; + }); + } + }, + { urls: [''] }, + ['blocking'], +); diff --git a/src/browser/chrome/bundle.js b/src/browser/chrome/bundle.js new file mode 100644 index 0000000..dd0b1a0 --- /dev/null +++ b/src/browser/chrome/bundle.js @@ -0,0 +1,31269 @@ +(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i + Copyright (C) 2015 Ingvar Stepanyan + Copyright (C) 2014 Ivan Nikulin + Copyright (C) 2012-2013 Michael Ficarra + Copyright (C) 2012-2013 Mathias Bynens + Copyright (C) 2013 Irakli Gozalishvili + Copyright (C) 2012 Robert Gust-Bardon + Copyright (C) 2012 John Freeman + Copyright (C) 2011-2012 Ariya Hidayat + Copyright (C) 2012 Joost-Wim Boekesteijn + Copyright (C) 2012 Kris Kowal + Copyright (C) 2012 Arpad Borsos + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/*global exports:true, require:true, global:true*/ +(function () { + 'use strict'; + + var Syntax, + Precedence, + BinaryPrecedence, + SourceNode, + estraverse, + esutils, + base, + indent, + json, + renumber, + hexadecimal, + quotes, + escapeless, + newline, + space, + parentheses, + semicolons, + safeConcatenation, + directive, + extra, + parse, + sourceMap, + sourceCode, + preserveBlankLines, + FORMAT_MINIFY, + FORMAT_DEFAULTS; + + estraverse = require('estraverse'); + esutils = require('esutils'); + + Syntax = estraverse.Syntax; + + // Generation is done by generateExpression. + function isExpression(node) { + return CodeGenerator.Expression.hasOwnProperty(node.type); + } + + // Generation is done by generateStatement. + function isStatement(node) { + return CodeGenerator.Statement.hasOwnProperty(node.type); + } + + Precedence = { + Sequence: 0, + Yield: 1, + Assignment: 1, + Conditional: 2, + ArrowFunction: 2, + LogicalOR: 3, + LogicalAND: 4, + BitwiseOR: 5, + BitwiseXOR: 6, + BitwiseAND: 7, + Equality: 8, + Relational: 9, + BitwiseSHIFT: 10, + Additive: 11, + Multiplicative: 12, + Await: 13, + Unary: 13, + Postfix: 14, + Call: 15, + New: 16, + TaggedTemplate: 17, + Member: 18, + Primary: 19 + }; + + BinaryPrecedence = { + '||': Precedence.LogicalOR, + '&&': Precedence.LogicalAND, + '|': Precedence.BitwiseOR, + '^': Precedence.BitwiseXOR, + '&': Precedence.BitwiseAND, + '==': Precedence.Equality, + '!=': Precedence.Equality, + '===': Precedence.Equality, + '!==': Precedence.Equality, + 'is': Precedence.Equality, + 'isnt': Precedence.Equality, + '<': Precedence.Relational, + '>': Precedence.Relational, + '<=': Precedence.Relational, + '>=': Precedence.Relational, + 'in': Precedence.Relational, + 'instanceof': Precedence.Relational, + '<<': Precedence.BitwiseSHIFT, + '>>': Precedence.BitwiseSHIFT, + '>>>': Precedence.BitwiseSHIFT, + '+': Precedence.Additive, + '-': Precedence.Additive, + '*': Precedence.Multiplicative, + '%': Precedence.Multiplicative, + '/': Precedence.Multiplicative + }; + + //Flags + var F_ALLOW_IN = 1, + F_ALLOW_CALL = 1 << 1, + F_ALLOW_UNPARATH_NEW = 1 << 2, + F_FUNC_BODY = 1 << 3, + F_DIRECTIVE_CTX = 1 << 4, + F_SEMICOLON_OPT = 1 << 5; + + //Expression flag sets + //NOTE: Flag order: + // F_ALLOW_IN + // F_ALLOW_CALL + // F_ALLOW_UNPARATH_NEW + var E_FTT = F_ALLOW_CALL | F_ALLOW_UNPARATH_NEW, + E_TTF = F_ALLOW_IN | F_ALLOW_CALL, + E_TTT = F_ALLOW_IN | F_ALLOW_CALL | F_ALLOW_UNPARATH_NEW, + E_TFF = F_ALLOW_IN, + E_FFT = F_ALLOW_UNPARATH_NEW, + E_TFT = F_ALLOW_IN | F_ALLOW_UNPARATH_NEW; + + //Statement flag sets + //NOTE: Flag order: + // F_ALLOW_IN + // F_FUNC_BODY + // F_DIRECTIVE_CTX + // F_SEMICOLON_OPT + var S_TFFF = F_ALLOW_IN, + S_TFFT = F_ALLOW_IN | F_SEMICOLON_OPT, + S_FFFF = 0x00, + S_TFTF = F_ALLOW_IN | F_DIRECTIVE_CTX, + S_TTFF = F_ALLOW_IN | F_FUNC_BODY; + + function getDefaultOptions() { + // default options + return { + indent: null, + base: null, + parse: null, + comment: false, + format: { + indent: { + style: ' ', + base: 0, + adjustMultilineComment: false + }, + newline: '\n', + space: ' ', + json: false, + renumber: false, + hexadecimal: false, + quotes: 'single', + escapeless: false, + compact: false, + parentheses: true, + semicolons: true, + safeConcatenation: false, + preserveBlankLines: false + }, + moz: { + comprehensionExpressionStartsWithAssignment: false, + starlessGenerator: false + }, + sourceMap: null, + sourceMapRoot: null, + sourceMapWithCode: false, + directive: false, + raw: true, + verbatim: null, + sourceCode: null + }; + } + + function stringRepeat(str, num) { + var result = ''; + + for (num |= 0; num > 0; num >>>= 1, str += str) { + if (num & 1) { + result += str; + } + } + + return result; + } + + function hasLineTerminator(str) { + return (/[\r\n]/g).test(str); + } + + function endsWithLineTerminator(str) { + var len = str.length; + return len && esutils.code.isLineTerminator(str.charCodeAt(len - 1)); + } + + function merge(target, override) { + var key; + for (key in override) { + if (override.hasOwnProperty(key)) { + target[key] = override[key]; + } + } + return target; + } + + function updateDeeply(target, override) { + var key, val; + + function isHashObject(target) { + return typeof target === 'object' && target instanceof Object && !(target instanceof RegExp); + } + + for (key in override) { + if (override.hasOwnProperty(key)) { + val = override[key]; + if (isHashObject(val)) { + if (isHashObject(target[key])) { + updateDeeply(target[key], val); + } else { + target[key] = updateDeeply({}, val); + } + } else { + target[key] = val; + } + } + } + return target; + } + + function generateNumber(value) { + var result, point, temp, exponent, pos; + + if (value !== value) { + throw new Error('Numeric literal whose value is NaN'); + } + if (value < 0 || (value === 0 && 1 / value < 0)) { + throw new Error('Numeric literal whose value is negative'); + } + + if (value === 1 / 0) { + return json ? 'null' : renumber ? '1e400' : '1e+400'; + } + + result = '' + value; + if (!renumber || result.length < 3) { + return result; + } + + point = result.indexOf('.'); + if (!json && result.charCodeAt(0) === 0x30 /* 0 */ && point === 1) { + point = 0; + result = result.slice(1); + } + temp = result; + result = result.replace('e+', 'e'); + exponent = 0; + if ((pos = temp.indexOf('e')) > 0) { + exponent = +temp.slice(pos + 1); + temp = temp.slice(0, pos); + } + if (point >= 0) { + exponent -= temp.length - point - 1; + temp = +(temp.slice(0, point) + temp.slice(point + 1)) + ''; + } + pos = 0; + while (temp.charCodeAt(temp.length + pos - 1) === 0x30 /* 0 */) { + --pos; + } + if (pos !== 0) { + exponent -= pos; + temp = temp.slice(0, pos); + } + if (exponent !== 0) { + temp += 'e' + exponent; + } + if ((temp.length < result.length || + (hexadecimal && value > 1e12 && Math.floor(value) === value && (temp = '0x' + value.toString(16)).length < result.length)) && + +temp === value) { + result = temp; + } + + return result; + } + + // Generate valid RegExp expression. + // This function is based on https://github.com/Constellation/iv Engine + + function escapeRegExpCharacter(ch, previousIsBackslash) { + // not handling '\' and handling \u2028 or \u2029 to unicode escape sequence + if ((ch & ~1) === 0x2028) { + return (previousIsBackslash ? 'u' : '\\u') + ((ch === 0x2028) ? '2028' : '2029'); + } else if (ch === 10 || ch === 13) { // \n, \r + return (previousIsBackslash ? '' : '\\') + ((ch === 10) ? 'n' : 'r'); + } + return String.fromCharCode(ch); + } + + function generateRegExp(reg) { + var match, result, flags, i, iz, ch, characterInBrack, previousIsBackslash; + + result = reg.toString(); + + if (reg.source) { + // extract flag from toString result + match = result.match(/\/([^/]*)$/); + if (!match) { + return result; + } + + flags = match[1]; + result = ''; + + characterInBrack = false; + previousIsBackslash = false; + for (i = 0, iz = reg.source.length; i < iz; ++i) { + ch = reg.source.charCodeAt(i); + + if (!previousIsBackslash) { + if (characterInBrack) { + if (ch === 93) { // ] + characterInBrack = false; + } + } else { + if (ch === 47) { // / + result += '\\'; + } else if (ch === 91) { // [ + characterInBrack = true; + } + } + result += escapeRegExpCharacter(ch, previousIsBackslash); + previousIsBackslash = ch === 92; // \ + } else { + // if new RegExp("\\\n') is provided, create /\n/ + result += escapeRegExpCharacter(ch, previousIsBackslash); + // prevent like /\\[/]/ + previousIsBackslash = false; + } + } + + return '/' + result + '/' + flags; + } + + return result; + } + + function escapeAllowedCharacter(code, next) { + var hex; + + if (code === 0x08 /* \b */) { + return '\\b'; + } + + if (code === 0x0C /* \f */) { + return '\\f'; + } + + if (code === 0x09 /* \t */) { + return '\\t'; + } + + hex = code.toString(16).toUpperCase(); + if (json || code > 0xFF) { + return '\\u' + '0000'.slice(hex.length) + hex; + } else if (code === 0x0000 && !esutils.code.isDecimalDigit(next)) { + return '\\0'; + } else if (code === 0x000B /* \v */) { // '\v' + return '\\x0B'; + } else { + return '\\x' + '00'.slice(hex.length) + hex; + } + } + + function escapeDisallowedCharacter(code) { + if (code === 0x5C /* \ */) { + return '\\\\'; + } + + if (code === 0x0A /* \n */) { + return '\\n'; + } + + if (code === 0x0D /* \r */) { + return '\\r'; + } + + if (code === 0x2028) { + return '\\u2028'; + } + + if (code === 0x2029) { + return '\\u2029'; + } + + throw new Error('Incorrectly classified character'); + } + + function escapeDirective(str) { + var i, iz, code, quote; + + quote = quotes === 'double' ? '"' : '\''; + for (i = 0, iz = str.length; i < iz; ++i) { + code = str.charCodeAt(i); + if (code === 0x27 /* ' */) { + quote = '"'; + break; + } else if (code === 0x22 /* " */) { + quote = '\''; + break; + } else if (code === 0x5C /* \ */) { + ++i; + } + } + + return quote + str + quote; + } + + function escapeString(str) { + var result = '', i, len, code, singleQuotes = 0, doubleQuotes = 0, single, quote; + + for (i = 0, len = str.length; i < len; ++i) { + code = str.charCodeAt(i); + if (code === 0x27 /* ' */) { + ++singleQuotes; + } else if (code === 0x22 /* " */) { + ++doubleQuotes; + } else if (code === 0x2F /* / */ && json) { + result += '\\'; + } else if (esutils.code.isLineTerminator(code) || code === 0x5C /* \ */) { + result += escapeDisallowedCharacter(code); + continue; + } else if (!esutils.code.isIdentifierPartES5(code) && (json && code < 0x20 /* SP */ || !json && !escapeless && (code < 0x20 /* SP */ || code > 0x7E /* ~ */))) { + result += escapeAllowedCharacter(code, str.charCodeAt(i + 1)); + continue; + } + result += String.fromCharCode(code); + } + + single = !(quotes === 'double' || (quotes === 'auto' && doubleQuotes < singleQuotes)); + quote = single ? '\'' : '"'; + + if (!(single ? singleQuotes : doubleQuotes)) { + return quote + result + quote; + } + + str = result; + result = quote; + + for (i = 0, len = str.length; i < len; ++i) { + code = str.charCodeAt(i); + if ((code === 0x27 /* ' */ && single) || (code === 0x22 /* " */ && !single)) { + result += '\\'; + } + result += String.fromCharCode(code); + } + + return result + quote; + } + + /** + * flatten an array to a string, where the array can contain + * either strings or nested arrays + */ + function flattenToString(arr) { + var i, iz, elem, result = ''; + for (i = 0, iz = arr.length; i < iz; ++i) { + elem = arr[i]; + result += Array.isArray(elem) ? flattenToString(elem) : elem; + } + return result; + } + + /** + * convert generated to a SourceNode when source maps are enabled. + */ + function toSourceNodeWhenNeeded(generated, node) { + if (!sourceMap) { + // with no source maps, generated is either an + // array or a string. if an array, flatten it. + // if a string, just return it + if (Array.isArray(generated)) { + return flattenToString(generated); + } else { + return generated; + } + } + if (node == null) { + if (generated instanceof SourceNode) { + return generated; + } else { + node = {}; + } + } + if (node.loc == null) { + return new SourceNode(null, null, sourceMap, generated, node.name || null); + } + return new SourceNode(node.loc.start.line, node.loc.start.column, (sourceMap === true ? node.loc.source || null : sourceMap), generated, node.name || null); + } + + function noEmptySpace() { + return (space) ? space : ' '; + } + + function join(left, right) { + var leftSource, + rightSource, + leftCharCode, + rightCharCode; + + leftSource = toSourceNodeWhenNeeded(left).toString(); + if (leftSource.length === 0) { + return [right]; + } + + rightSource = toSourceNodeWhenNeeded(right).toString(); + if (rightSource.length === 0) { + return [left]; + } + + leftCharCode = leftSource.charCodeAt(leftSource.length - 1); + rightCharCode = rightSource.charCodeAt(0); + + if ((leftCharCode === 0x2B /* + */ || leftCharCode === 0x2D /* - */) && leftCharCode === rightCharCode || + esutils.code.isIdentifierPartES5(leftCharCode) && esutils.code.isIdentifierPartES5(rightCharCode) || + leftCharCode === 0x2F /* / */ && rightCharCode === 0x69 /* i */) { // infix word operators all start with `i` + return [left, noEmptySpace(), right]; + } else if (esutils.code.isWhiteSpace(leftCharCode) || esutils.code.isLineTerminator(leftCharCode) || + esutils.code.isWhiteSpace(rightCharCode) || esutils.code.isLineTerminator(rightCharCode)) { + return [left, right]; + } + return [left, space, right]; + } + + function addIndent(stmt) { + return [base, stmt]; + } + + function withIndent(fn) { + var previousBase; + previousBase = base; + base += indent; + fn(base); + base = previousBase; + } + + function calculateSpaces(str) { + var i; + for (i = str.length - 1; i >= 0; --i) { + if (esutils.code.isLineTerminator(str.charCodeAt(i))) { + break; + } + } + return (str.length - 1) - i; + } + + function adjustMultilineComment(value, specialBase) { + var array, i, len, line, j, spaces, previousBase, sn; + + array = value.split(/\r\n|[\r\n]/); + spaces = Number.MAX_VALUE; + + // first line doesn't have indentation + for (i = 1, len = array.length; i < len; ++i) { + line = array[i]; + j = 0; + while (j < line.length && esutils.code.isWhiteSpace(line.charCodeAt(j))) { + ++j; + } + if (spaces > j) { + spaces = j; + } + } + + if (typeof specialBase !== 'undefined') { + // pattern like + // { + // var t = 20; /* + // * this is comment + // */ + // } + previousBase = base; + if (array[1][spaces] === '*') { + specialBase += ' '; + } + base = specialBase; + } else { + if (spaces & 1) { + // /* + // * + // */ + // If spaces are odd number, above pattern is considered. + // We waste 1 space. + --spaces; + } + previousBase = base; + } + + for (i = 1, len = array.length; i < len; ++i) { + sn = toSourceNodeWhenNeeded(addIndent(array[i].slice(spaces))); + array[i] = sourceMap ? sn.join('') : sn; + } + + base = previousBase; + + return array.join('\n'); + } + + function generateComment(comment, specialBase) { + if (comment.type === 'Line') { + if (endsWithLineTerminator(comment.value)) { + return '//' + comment.value; + } else { + // Always use LineTerminator + var result = '//' + comment.value; + if (!preserveBlankLines) { + result += '\n'; + } + return result; + } + } + if (extra.format.indent.adjustMultilineComment && /[\n\r]/.test(comment.value)) { + return adjustMultilineComment('/*' + comment.value + '*/', specialBase); + } + return '/*' + comment.value + '*/'; + } + + function addComments(stmt, result) { + var i, len, comment, save, tailingToStatement, specialBase, fragment, + extRange, range, prevRange, prefix, infix, suffix, count; + + if (stmt.leadingComments && stmt.leadingComments.length > 0) { + save = result; + + if (preserveBlankLines) { + comment = stmt.leadingComments[0]; + result = []; + + extRange = comment.extendedRange; + range = comment.range; + + prefix = sourceCode.substring(extRange[0], range[0]); + count = (prefix.match(/\n/g) || []).length; + if (count > 0) { + result.push(stringRepeat('\n', count)); + result.push(addIndent(generateComment(comment))); + } else { + result.push(prefix); + result.push(generateComment(comment)); + } + + prevRange = range; + + for (i = 1, len = stmt.leadingComments.length; i < len; i++) { + comment = stmt.leadingComments[i]; + range = comment.range; + + infix = sourceCode.substring(prevRange[1], range[0]); + count = (infix.match(/\n/g) || []).length; + result.push(stringRepeat('\n', count)); + result.push(addIndent(generateComment(comment))); + + prevRange = range; + } + + suffix = sourceCode.substring(range[1], extRange[1]); + count = (suffix.match(/\n/g) || []).length; + result.push(stringRepeat('\n', count)); + } else { + comment = stmt.leadingComments[0]; + result = []; + if (safeConcatenation && stmt.type === Syntax.Program && stmt.body.length === 0) { + result.push('\n'); + } + result.push(generateComment(comment)); + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push('\n'); + } + + for (i = 1, len = stmt.leadingComments.length; i < len; ++i) { + comment = stmt.leadingComments[i]; + fragment = [generateComment(comment)]; + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + fragment.push('\n'); + } + result.push(addIndent(fragment)); + } + } + + result.push(addIndent(save)); + } + + if (stmt.trailingComments) { + + if (preserveBlankLines) { + comment = stmt.trailingComments[0]; + extRange = comment.extendedRange; + range = comment.range; + + prefix = sourceCode.substring(extRange[0], range[0]); + count = (prefix.match(/\n/g) || []).length; + + if (count > 0) { + result.push(stringRepeat('\n', count)); + result.push(addIndent(generateComment(comment))); + } else { + result.push(prefix); + result.push(generateComment(comment)); + } + } else { + tailingToStatement = !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString()); + specialBase = stringRepeat(' ', calculateSpaces(toSourceNodeWhenNeeded([base, result, indent]).toString())); + for (i = 0, len = stmt.trailingComments.length; i < len; ++i) { + comment = stmt.trailingComments[i]; + if (tailingToStatement) { + // We assume target like following script + // + // var t = 20; /** + // * This is comment of t + // */ + if (i === 0) { + // first case + result = [result, indent]; + } else { + result = [result, specialBase]; + } + result.push(generateComment(comment, specialBase)); + } else { + result = [result, addIndent(generateComment(comment))]; + } + if (i !== len - 1 && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result = [result, '\n']; + } + } + } + } + + return result; + } + + function generateBlankLines(start, end, result) { + var j, newlineCount = 0; + + for (j = start; j < end; j++) { + if (sourceCode[j] === '\n') { + newlineCount++; + } + } + + for (j = 1; j < newlineCount; j++) { + result.push(newline); + } + } + + function parenthesize(text, current, should) { + if (current < should) { + return ['(', text, ')']; + } + return text; + } + + function generateVerbatimString(string) { + var i, iz, result; + result = string.split(/\r\n|\n/); + for (i = 1, iz = result.length; i < iz; i++) { + result[i] = newline + base + result[i]; + } + return result; + } + + function generateVerbatim(expr, precedence) { + var verbatim, result, prec; + verbatim = expr[extra.verbatim]; + + if (typeof verbatim === 'string') { + result = parenthesize(generateVerbatimString(verbatim), Precedence.Sequence, precedence); + } else { + // verbatim is object + result = generateVerbatimString(verbatim.content); + prec = (verbatim.precedence != null) ? verbatim.precedence : Precedence.Sequence; + result = parenthesize(result, prec, precedence); + } + + return toSourceNodeWhenNeeded(result, expr); + } + + function CodeGenerator() { + } + + // Helpers. + + CodeGenerator.prototype.maybeBlock = function(stmt, flags) { + var result, noLeadingComment, that = this; + + noLeadingComment = !extra.comment || !stmt.leadingComments; + + if (stmt.type === Syntax.BlockStatement && noLeadingComment) { + return [space, this.generateStatement(stmt, flags)]; + } + + if (stmt.type === Syntax.EmptyStatement && noLeadingComment) { + return ';'; + } + + withIndent(function () { + result = [ + newline, + addIndent(that.generateStatement(stmt, flags)) + ]; + }); + + return result; + }; + + CodeGenerator.prototype.maybeBlockSuffix = function (stmt, result) { + var ends = endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString()); + if (stmt.type === Syntax.BlockStatement && (!extra.comment || !stmt.leadingComments) && !ends) { + return [result, space]; + } + if (ends) { + return [result, base]; + } + return [result, newline, base]; + }; + + function generateIdentifier(node) { + return toSourceNodeWhenNeeded(node.name, node); + } + + function generateAsyncPrefix(node, spaceRequired) { + return node.async ? 'async' + (spaceRequired ? noEmptySpace() : space) : ''; + } + + function generateStarSuffix(node) { + var isGenerator = node.generator && !extra.moz.starlessGenerator; + return isGenerator ? '*' + space : ''; + } + + function generateMethodPrefix(prop) { + var func = prop.value, prefix = ''; + if (func.async) { + prefix += generateAsyncPrefix(func, !prop.computed); + } + if (func.generator) { + // avoid space before method name + prefix += generateStarSuffix(func) ? '*' : ''; + } + return prefix; + } + + CodeGenerator.prototype.generatePattern = function (node, precedence, flags) { + if (node.type === Syntax.Identifier) { + return generateIdentifier(node); + } + return this.generateExpression(node, precedence, flags); + }; + + CodeGenerator.prototype.generateFunctionParams = function (node) { + var i, iz, result, hasDefault; + + hasDefault = false; + + if (node.type === Syntax.ArrowFunctionExpression && + !node.rest && (!node.defaults || node.defaults.length === 0) && + node.params.length === 1 && node.params[0].type === Syntax.Identifier) { + // arg => { } case + result = [generateAsyncPrefix(node, true), generateIdentifier(node.params[0])]; + } else { + result = node.type === Syntax.ArrowFunctionExpression ? [generateAsyncPrefix(node, false)] : []; + result.push('('); + if (node.defaults) { + hasDefault = true; + } + for (i = 0, iz = node.params.length; i < iz; ++i) { + if (hasDefault && node.defaults[i]) { + // Handle default values. + result.push(this.generateAssignment(node.params[i], node.defaults[i], '=', Precedence.Assignment, E_TTT)); + } else { + result.push(this.generatePattern(node.params[i], Precedence.Assignment, E_TTT)); + } + if (i + 1 < iz) { + result.push(',' + space); + } + } + + if (node.rest) { + if (node.params.length) { + result.push(',' + space); + } + result.push('...'); + result.push(generateIdentifier(node.rest)); + } + + result.push(')'); + } + + return result; + }; + + CodeGenerator.prototype.generateFunctionBody = function (node) { + var result, expr; + + result = this.generateFunctionParams(node); + + if (node.type === Syntax.ArrowFunctionExpression) { + result.push(space); + result.push('=>'); + } + + if (node.expression) { + result.push(space); + expr = this.generateExpression(node.body, Precedence.Assignment, E_TTT); + if (expr.toString().charAt(0) === '{') { + expr = ['(', expr, ')']; + } + result.push(expr); + } else { + result.push(this.maybeBlock(node.body, S_TTFF)); + } + + return result; + }; + + CodeGenerator.prototype.generateIterationForStatement = function (operator, stmt, flags) { + var result = ['for' + space + (stmt.await ? 'await' + space : '') + '('], that = this; + withIndent(function () { + if (stmt.left.type === Syntax.VariableDeclaration) { + withIndent(function () { + result.push(stmt.left.kind + noEmptySpace()); + result.push(that.generateStatement(stmt.left.declarations[0], S_FFFF)); + }); + } else { + result.push(that.generateExpression(stmt.left, Precedence.Call, E_TTT)); + } + + result = join(result, operator); + result = [join( + result, + that.generateExpression(stmt.right, Precedence.Assignment, E_TTT) + ), ')']; + }); + result.push(this.maybeBlock(stmt.body, flags)); + return result; + }; + + CodeGenerator.prototype.generatePropertyKey = function (expr, computed) { + var result = []; + + if (computed) { + result.push('['); + } + + result.push(this.generateExpression(expr, Precedence.Sequence, E_TTT)); + + if (computed) { + result.push(']'); + } + + return result; + }; + + CodeGenerator.prototype.generateAssignment = function (left, right, operator, precedence, flags) { + if (Precedence.Assignment < precedence) { + flags |= F_ALLOW_IN; + } + + return parenthesize( + [ + this.generateExpression(left, Precedence.Call, flags), + space + operator + space, + this.generateExpression(right, Precedence.Assignment, flags) + ], + Precedence.Assignment, + precedence + ); + }; + + CodeGenerator.prototype.semicolon = function (flags) { + if (!semicolons && flags & F_SEMICOLON_OPT) { + return ''; + } + return ';'; + }; + + // Statements. + + CodeGenerator.Statement = { + + BlockStatement: function (stmt, flags) { + var range, content, result = ['{', newline], that = this; + + withIndent(function () { + // handle functions without any code + if (stmt.body.length === 0 && preserveBlankLines) { + range = stmt.range; + if (range[1] - range[0] > 2) { + content = sourceCode.substring(range[0] + 1, range[1] - 1); + if (content[0] === '\n') { + result = ['{']; + } + result.push(content); + } + } + + var i, iz, fragment, bodyFlags; + bodyFlags = S_TFFF; + if (flags & F_FUNC_BODY) { + bodyFlags |= F_DIRECTIVE_CTX; + } + + for (i = 0, iz = stmt.body.length; i < iz; ++i) { + if (preserveBlankLines) { + // handle spaces before the first line + if (i === 0) { + if (stmt.body[0].leadingComments) { + range = stmt.body[0].leadingComments[0].extendedRange; + content = sourceCode.substring(range[0], range[1]); + if (content[0] === '\n') { + result = ['{']; + } + } + if (!stmt.body[0].leadingComments) { + generateBlankLines(stmt.range[0], stmt.body[0].range[0], result); + } + } + + // handle spaces between lines + if (i > 0) { + if (!stmt.body[i - 1].trailingComments && !stmt.body[i].leadingComments) { + generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result); + } + } + } + + if (i === iz - 1) { + bodyFlags |= F_SEMICOLON_OPT; + } + + if (stmt.body[i].leadingComments && preserveBlankLines) { + fragment = that.generateStatement(stmt.body[i], bodyFlags); + } else { + fragment = addIndent(that.generateStatement(stmt.body[i], bodyFlags)); + } + + result.push(fragment); + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + if (preserveBlankLines && i < iz - 1) { + // don't add a new line if there are leading coments + // in the next statement + if (!stmt.body[i + 1].leadingComments) { + result.push(newline); + } + } else { + result.push(newline); + } + } + + if (preserveBlankLines) { + // handle spaces after the last line + if (i === iz - 1) { + if (!stmt.body[i].trailingComments) { + generateBlankLines(stmt.body[i].range[1], stmt.range[1], result); + } + } + } + } + }); + + result.push(addIndent('}')); + return result; + }, + + BreakStatement: function (stmt, flags) { + if (stmt.label) { + return 'break ' + stmt.label.name + this.semicolon(flags); + } + return 'break' + this.semicolon(flags); + }, + + ContinueStatement: function (stmt, flags) { + if (stmt.label) { + return 'continue ' + stmt.label.name + this.semicolon(flags); + } + return 'continue' + this.semicolon(flags); + }, + + ClassBody: function (stmt, flags) { + var result = [ '{', newline], that = this; + + withIndent(function (indent) { + var i, iz; + + for (i = 0, iz = stmt.body.length; i < iz; ++i) { + result.push(indent); + result.push(that.generateExpression(stmt.body[i], Precedence.Sequence, E_TTT)); + if (i + 1 < iz) { + result.push(newline); + } + } + }); + + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(base); + result.push('}'); + return result; + }, + + ClassDeclaration: function (stmt, flags) { + var result, fragment; + result = ['class']; + if (stmt.id) { + result = join(result, this.generateExpression(stmt.id, Precedence.Sequence, E_TTT)); + } + if (stmt.superClass) { + fragment = join('extends', this.generateExpression(stmt.superClass, Precedence.Assignment, E_TTT)); + result = join(result, fragment); + } + result.push(space); + result.push(this.generateStatement(stmt.body, S_TFFT)); + return result; + }, + + DirectiveStatement: function (stmt, flags) { + if (extra.raw && stmt.raw) { + return stmt.raw + this.semicolon(flags); + } + return escapeDirective(stmt.directive) + this.semicolon(flags); + }, + + DoWhileStatement: function (stmt, flags) { + // Because `do 42 while (cond)` is Syntax Error. We need semicolon. + var result = join('do', this.maybeBlock(stmt.body, S_TFFF)); + result = this.maybeBlockSuffix(stmt.body, result); + return join(result, [ + 'while' + space + '(', + this.generateExpression(stmt.test, Precedence.Sequence, E_TTT), + ')' + this.semicolon(flags) + ]); + }, + + CatchClause: function (stmt, flags) { + var result, that = this; + withIndent(function () { + var guard; + + result = [ + 'catch' + space + '(', + that.generateExpression(stmt.param, Precedence.Sequence, E_TTT), + ')' + ]; + + if (stmt.guard) { + guard = that.generateExpression(stmt.guard, Precedence.Sequence, E_TTT); + result.splice(2, 0, ' if ', guard); + } + }); + result.push(this.maybeBlock(stmt.body, S_TFFF)); + return result; + }, + + DebuggerStatement: function (stmt, flags) { + return 'debugger' + this.semicolon(flags); + }, + + EmptyStatement: function (stmt, flags) { + return ';'; + }, + + ExportDefaultDeclaration: function (stmt, flags) { + var result = [ 'export' ], bodyFlags; + + bodyFlags = (flags & F_SEMICOLON_OPT) ? S_TFFT : S_TFFF; + + // export default HoistableDeclaration[Default] + // export default AssignmentExpression[In] ; + result = join(result, 'default'); + if (isStatement(stmt.declaration)) { + result = join(result, this.generateStatement(stmt.declaration, bodyFlags)); + } else { + result = join(result, this.generateExpression(stmt.declaration, Precedence.Assignment, E_TTT) + this.semicolon(flags)); + } + return result; + }, + + ExportNamedDeclaration: function (stmt, flags) { + var result = [ 'export' ], bodyFlags, that = this; + + bodyFlags = (flags & F_SEMICOLON_OPT) ? S_TFFT : S_TFFF; + + // export VariableStatement + // export Declaration[Default] + if (stmt.declaration) { + return join(result, this.generateStatement(stmt.declaration, bodyFlags)); + } + + // export ExportClause[NoReference] FromClause ; + // export ExportClause ; + if (stmt.specifiers) { + if (stmt.specifiers.length === 0) { + result = join(result, '{' + space + '}'); + } else if (stmt.specifiers[0].type === Syntax.ExportBatchSpecifier) { + result = join(result, this.generateExpression(stmt.specifiers[0], Precedence.Sequence, E_TTT)); + } else { + result = join(result, '{'); + withIndent(function (indent) { + var i, iz; + result.push(newline); + for (i = 0, iz = stmt.specifiers.length; i < iz; ++i) { + result.push(indent); + result.push(that.generateExpression(stmt.specifiers[i], Precedence.Sequence, E_TTT)); + if (i + 1 < iz) { + result.push(',' + newline); + } + } + }); + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(base + '}'); + } + + if (stmt.source) { + result = join(result, [ + 'from' + space, + // ModuleSpecifier + this.generateExpression(stmt.source, Precedence.Sequence, E_TTT), + this.semicolon(flags) + ]); + } else { + result.push(this.semicolon(flags)); + } + } + return result; + }, + + ExportAllDeclaration: function (stmt, flags) { + // export * FromClause ; + return [ + 'export' + space, + '*' + space, + 'from' + space, + // ModuleSpecifier + this.generateExpression(stmt.source, Precedence.Sequence, E_TTT), + this.semicolon(flags) + ]; + }, + + ExpressionStatement: function (stmt, flags) { + var result, fragment; + + function isClassPrefixed(fragment) { + var code; + if (fragment.slice(0, 5) !== 'class') { + return false; + } + code = fragment.charCodeAt(5); + return code === 0x7B /* '{' */ || esutils.code.isWhiteSpace(code) || esutils.code.isLineTerminator(code); + } + + function isFunctionPrefixed(fragment) { + var code; + if (fragment.slice(0, 8) !== 'function') { + return false; + } + code = fragment.charCodeAt(8); + return code === 0x28 /* '(' */ || esutils.code.isWhiteSpace(code) || code === 0x2A /* '*' */ || esutils.code.isLineTerminator(code); + } + + function isAsyncPrefixed(fragment) { + var code, i, iz; + if (fragment.slice(0, 5) !== 'async') { + return false; + } + if (!esutils.code.isWhiteSpace(fragment.charCodeAt(5))) { + return false; + } + for (i = 6, iz = fragment.length; i < iz; ++i) { + if (!esutils.code.isWhiteSpace(fragment.charCodeAt(i))) { + break; + } + } + if (i === iz) { + return false; + } + if (fragment.slice(i, i + 8) !== 'function') { + return false; + } + code = fragment.charCodeAt(i + 8); + return code === 0x28 /* '(' */ || esutils.code.isWhiteSpace(code) || code === 0x2A /* '*' */ || esutils.code.isLineTerminator(code); + } + + result = [this.generateExpression(stmt.expression, Precedence.Sequence, E_TTT)]; + // 12.4 '{', 'function', 'class' is not allowed in this position. + // wrap expression with parentheses + fragment = toSourceNodeWhenNeeded(result).toString(); + if (fragment.charCodeAt(0) === 0x7B /* '{' */ || // ObjectExpression + isClassPrefixed(fragment) || + isFunctionPrefixed(fragment) || + isAsyncPrefixed(fragment) || + (directive && (flags & F_DIRECTIVE_CTX) && stmt.expression.type === Syntax.Literal && typeof stmt.expression.value === 'string')) { + result = ['(', result, ')' + this.semicolon(flags)]; + } else { + result.push(this.semicolon(flags)); + } + return result; + }, + + ImportDeclaration: function (stmt, flags) { + // ES6: 15.2.1 valid import declarations: + // - import ImportClause FromClause ; + // - import ModuleSpecifier ; + var result, cursor, that = this; + + // If no ImportClause is present, + // this should be `import ModuleSpecifier` so skip `from` + // ModuleSpecifier is StringLiteral. + if (stmt.specifiers.length === 0) { + // import ModuleSpecifier ; + return [ + 'import', + space, + // ModuleSpecifier + this.generateExpression(stmt.source, Precedence.Sequence, E_TTT), + this.semicolon(flags) + ]; + } + + // import ImportClause FromClause ; + result = [ + 'import' + ]; + cursor = 0; + + // ImportedBinding + if (stmt.specifiers[cursor].type === Syntax.ImportDefaultSpecifier) { + result = join(result, [ + this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT) + ]); + ++cursor; + } + + if (stmt.specifiers[cursor]) { + if (cursor !== 0) { + result.push(','); + } + + if (stmt.specifiers[cursor].type === Syntax.ImportNamespaceSpecifier) { + // NameSpaceImport + result = join(result, [ + space, + this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT) + ]); + } else { + // NamedImports + result.push(space + '{'); + + if ((stmt.specifiers.length - cursor) === 1) { + // import { ... } from "..."; + result.push(space); + result.push(this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT)); + result.push(space + '}' + space); + } else { + // import { + // ..., + // ..., + // } from "..."; + withIndent(function (indent) { + var i, iz; + result.push(newline); + for (i = cursor, iz = stmt.specifiers.length; i < iz; ++i) { + result.push(indent); + result.push(that.generateExpression(stmt.specifiers[i], Precedence.Sequence, E_TTT)); + if (i + 1 < iz) { + result.push(',' + newline); + } + } + }); + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(base + '}' + space); + } + } + } + + result = join(result, [ + 'from' + space, + // ModuleSpecifier + this.generateExpression(stmt.source, Precedence.Sequence, E_TTT), + this.semicolon(flags) + ]); + return result; + }, + + VariableDeclarator: function (stmt, flags) { + var itemFlags = (flags & F_ALLOW_IN) ? E_TTT : E_FTT; + if (stmt.init) { + return [ + this.generateExpression(stmt.id, Precedence.Assignment, itemFlags), + space, + '=', + space, + this.generateExpression(stmt.init, Precedence.Assignment, itemFlags) + ]; + } + return this.generatePattern(stmt.id, Precedence.Assignment, itemFlags); + }, + + VariableDeclaration: function (stmt, flags) { + // VariableDeclarator is typed as Statement, + // but joined with comma (not LineTerminator). + // So if comment is attached to target node, we should specialize. + var result, i, iz, node, bodyFlags, that = this; + + result = [ stmt.kind ]; + + bodyFlags = (flags & F_ALLOW_IN) ? S_TFFF : S_FFFF; + + function block() { + node = stmt.declarations[0]; + if (extra.comment && node.leadingComments) { + result.push('\n'); + result.push(addIndent(that.generateStatement(node, bodyFlags))); + } else { + result.push(noEmptySpace()); + result.push(that.generateStatement(node, bodyFlags)); + } + + for (i = 1, iz = stmt.declarations.length; i < iz; ++i) { + node = stmt.declarations[i]; + if (extra.comment && node.leadingComments) { + result.push(',' + newline); + result.push(addIndent(that.generateStatement(node, bodyFlags))); + } else { + result.push(',' + space); + result.push(that.generateStatement(node, bodyFlags)); + } + } + } + + if (stmt.declarations.length > 1) { + withIndent(block); + } else { + block(); + } + + result.push(this.semicolon(flags)); + + return result; + }, + + ThrowStatement: function (stmt, flags) { + return [join( + 'throw', + this.generateExpression(stmt.argument, Precedence.Sequence, E_TTT) + ), this.semicolon(flags)]; + }, + + TryStatement: function (stmt, flags) { + var result, i, iz, guardedHandlers; + + result = ['try', this.maybeBlock(stmt.block, S_TFFF)]; + result = this.maybeBlockSuffix(stmt.block, result); + + if (stmt.handlers) { + // old interface + for (i = 0, iz = stmt.handlers.length; i < iz; ++i) { + result = join(result, this.generateStatement(stmt.handlers[i], S_TFFF)); + if (stmt.finalizer || i + 1 !== iz) { + result = this.maybeBlockSuffix(stmt.handlers[i].body, result); + } + } + } else { + guardedHandlers = stmt.guardedHandlers || []; + + for (i = 0, iz = guardedHandlers.length; i < iz; ++i) { + result = join(result, this.generateStatement(guardedHandlers[i], S_TFFF)); + if (stmt.finalizer || i + 1 !== iz) { + result = this.maybeBlockSuffix(guardedHandlers[i].body, result); + } + } + + // new interface + if (stmt.handler) { + if (Array.isArray(stmt.handler)) { + for (i = 0, iz = stmt.handler.length; i < iz; ++i) { + result = join(result, this.generateStatement(stmt.handler[i], S_TFFF)); + if (stmt.finalizer || i + 1 !== iz) { + result = this.maybeBlockSuffix(stmt.handler[i].body, result); + } + } + } else { + result = join(result, this.generateStatement(stmt.handler, S_TFFF)); + if (stmt.finalizer) { + result = this.maybeBlockSuffix(stmt.handler.body, result); + } + } + } + } + if (stmt.finalizer) { + result = join(result, ['finally', this.maybeBlock(stmt.finalizer, S_TFFF)]); + } + return result; + }, + + SwitchStatement: function (stmt, flags) { + var result, fragment, i, iz, bodyFlags, that = this; + withIndent(function () { + result = [ + 'switch' + space + '(', + that.generateExpression(stmt.discriminant, Precedence.Sequence, E_TTT), + ')' + space + '{' + newline + ]; + }); + if (stmt.cases) { + bodyFlags = S_TFFF; + for (i = 0, iz = stmt.cases.length; i < iz; ++i) { + if (i === iz - 1) { + bodyFlags |= F_SEMICOLON_OPT; + } + fragment = addIndent(this.generateStatement(stmt.cases[i], bodyFlags)); + result.push(fragment); + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + result.push(newline); + } + } + } + result.push(addIndent('}')); + return result; + }, + + SwitchCase: function (stmt, flags) { + var result, fragment, i, iz, bodyFlags, that = this; + withIndent(function () { + if (stmt.test) { + result = [ + join('case', that.generateExpression(stmt.test, Precedence.Sequence, E_TTT)), + ':' + ]; + } else { + result = ['default:']; + } + + i = 0; + iz = stmt.consequent.length; + if (iz && stmt.consequent[0].type === Syntax.BlockStatement) { + fragment = that.maybeBlock(stmt.consequent[0], S_TFFF); + result.push(fragment); + i = 1; + } + + if (i !== iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + + bodyFlags = S_TFFF; + for (; i < iz; ++i) { + if (i === iz - 1 && flags & F_SEMICOLON_OPT) { + bodyFlags |= F_SEMICOLON_OPT; + } + fragment = addIndent(that.generateStatement(stmt.consequent[i], bodyFlags)); + result.push(fragment); + if (i + 1 !== iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + result.push(newline); + } + } + }); + return result; + }, + + IfStatement: function (stmt, flags) { + var result, bodyFlags, semicolonOptional, that = this; + withIndent(function () { + result = [ + 'if' + space + '(', + that.generateExpression(stmt.test, Precedence.Sequence, E_TTT), + ')' + ]; + }); + semicolonOptional = flags & F_SEMICOLON_OPT; + bodyFlags = S_TFFF; + if (semicolonOptional) { + bodyFlags |= F_SEMICOLON_OPT; + } + if (stmt.alternate) { + result.push(this.maybeBlock(stmt.consequent, S_TFFF)); + result = this.maybeBlockSuffix(stmt.consequent, result); + if (stmt.alternate.type === Syntax.IfStatement) { + result = join(result, ['else ', this.generateStatement(stmt.alternate, bodyFlags)]); + } else { + result = join(result, join('else', this.maybeBlock(stmt.alternate, bodyFlags))); + } + } else { + result.push(this.maybeBlock(stmt.consequent, bodyFlags)); + } + return result; + }, + + ForStatement: function (stmt, flags) { + var result, that = this; + withIndent(function () { + result = ['for' + space + '(']; + if (stmt.init) { + if (stmt.init.type === Syntax.VariableDeclaration) { + result.push(that.generateStatement(stmt.init, S_FFFF)); + } else { + // F_ALLOW_IN becomes false. + result.push(that.generateExpression(stmt.init, Precedence.Sequence, E_FTT)); + result.push(';'); + } + } else { + result.push(';'); + } + + if (stmt.test) { + result.push(space); + result.push(that.generateExpression(stmt.test, Precedence.Sequence, E_TTT)); + result.push(';'); + } else { + result.push(';'); + } + + if (stmt.update) { + result.push(space); + result.push(that.generateExpression(stmt.update, Precedence.Sequence, E_TTT)); + result.push(')'); + } else { + result.push(')'); + } + }); + + result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)); + return result; + }, + + ForInStatement: function (stmt, flags) { + return this.generateIterationForStatement('in', stmt, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF); + }, + + ForOfStatement: function (stmt, flags) { + return this.generateIterationForStatement('of', stmt, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF); + }, + + LabeledStatement: function (stmt, flags) { + return [stmt.label.name + ':', this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)]; + }, + + Program: function (stmt, flags) { + var result, fragment, i, iz, bodyFlags; + iz = stmt.body.length; + result = [safeConcatenation && iz > 0 ? '\n' : '']; + bodyFlags = S_TFTF; + for (i = 0; i < iz; ++i) { + if (!safeConcatenation && i === iz - 1) { + bodyFlags |= F_SEMICOLON_OPT; + } + + if (preserveBlankLines) { + // handle spaces before the first line + if (i === 0) { + if (!stmt.body[0].leadingComments) { + generateBlankLines(stmt.range[0], stmt.body[i].range[0], result); + } + } + + // handle spaces between lines + if (i > 0) { + if (!stmt.body[i - 1].trailingComments && !stmt.body[i].leadingComments) { + generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result); + } + } + } + + fragment = addIndent(this.generateStatement(stmt.body[i], bodyFlags)); + result.push(fragment); + if (i + 1 < iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + if (preserveBlankLines) { + if (!stmt.body[i + 1].leadingComments) { + result.push(newline); + } + } else { + result.push(newline); + } + } + + if (preserveBlankLines) { + // handle spaces after the last line + if (i === iz - 1) { + if (!stmt.body[i].trailingComments) { + generateBlankLines(stmt.body[i].range[1], stmt.range[1], result); + } + } + } + } + return result; + }, + + FunctionDeclaration: function (stmt, flags) { + return [ + generateAsyncPrefix(stmt, true), + 'function', + generateStarSuffix(stmt) || noEmptySpace(), + stmt.id ? generateIdentifier(stmt.id) : '', + this.generateFunctionBody(stmt) + ]; + }, + + ReturnStatement: function (stmt, flags) { + if (stmt.argument) { + return [join( + 'return', + this.generateExpression(stmt.argument, Precedence.Sequence, E_TTT) + ), this.semicolon(flags)]; + } + return ['return' + this.semicolon(flags)]; + }, + + WhileStatement: function (stmt, flags) { + var result, that = this; + withIndent(function () { + result = [ + 'while' + space + '(', + that.generateExpression(stmt.test, Precedence.Sequence, E_TTT), + ')' + ]; + }); + result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)); + return result; + }, + + WithStatement: function (stmt, flags) { + var result, that = this; + withIndent(function () { + result = [ + 'with' + space + '(', + that.generateExpression(stmt.object, Precedence.Sequence, E_TTT), + ')' + ]; + }); + result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)); + return result; + } + + }; + + merge(CodeGenerator.prototype, CodeGenerator.Statement); + + // Expressions. + + CodeGenerator.Expression = { + + SequenceExpression: function (expr, precedence, flags) { + var result, i, iz; + if (Precedence.Sequence < precedence) { + flags |= F_ALLOW_IN; + } + result = []; + for (i = 0, iz = expr.expressions.length; i < iz; ++i) { + result.push(this.generateExpression(expr.expressions[i], Precedence.Assignment, flags)); + if (i + 1 < iz) { + result.push(',' + space); + } + } + return parenthesize(result, Precedence.Sequence, precedence); + }, + + AssignmentExpression: function (expr, precedence, flags) { + return this.generateAssignment(expr.left, expr.right, expr.operator, precedence, flags); + }, + + ArrowFunctionExpression: function (expr, precedence, flags) { + return parenthesize(this.generateFunctionBody(expr), Precedence.ArrowFunction, precedence); + }, + + ConditionalExpression: function (expr, precedence, flags) { + if (Precedence.Conditional < precedence) { + flags |= F_ALLOW_IN; + } + return parenthesize( + [ + this.generateExpression(expr.test, Precedence.LogicalOR, flags), + space + '?' + space, + this.generateExpression(expr.consequent, Precedence.Assignment, flags), + space + ':' + space, + this.generateExpression(expr.alternate, Precedence.Assignment, flags) + ], + Precedence.Conditional, + precedence + ); + }, + + LogicalExpression: function (expr, precedence, flags) { + return this.BinaryExpression(expr, precedence, flags); + }, + + BinaryExpression: function (expr, precedence, flags) { + var result, currentPrecedence, fragment, leftSource; + currentPrecedence = BinaryPrecedence[expr.operator]; + + if (currentPrecedence < precedence) { + flags |= F_ALLOW_IN; + } + + fragment = this.generateExpression(expr.left, currentPrecedence, flags); + + leftSource = fragment.toString(); + + if (leftSource.charCodeAt(leftSource.length - 1) === 0x2F /* / */ && esutils.code.isIdentifierPartES5(expr.operator.charCodeAt(0))) { + result = [fragment, noEmptySpace(), expr.operator]; + } else { + result = join(fragment, expr.operator); + } + + fragment = this.generateExpression(expr.right, currentPrecedence + 1, flags); + + if (expr.operator === '/' && fragment.toString().charAt(0) === '/' || + expr.operator.slice(-1) === '<' && fragment.toString().slice(0, 3) === '!--') { + // If '/' concats with '/' or `<` concats with `!--`, it is interpreted as comment start + result.push(noEmptySpace()); + result.push(fragment); + } else { + result = join(result, fragment); + } + + if (expr.operator === 'in' && !(flags & F_ALLOW_IN)) { + return ['(', result, ')']; + } + return parenthesize(result, currentPrecedence, precedence); + }, + + CallExpression: function (expr, precedence, flags) { + var result, i, iz; + // F_ALLOW_UNPARATH_NEW becomes false. + result = [this.generateExpression(expr.callee, Precedence.Call, E_TTF)]; + result.push('('); + for (i = 0, iz = expr['arguments'].length; i < iz; ++i) { + result.push(this.generateExpression(expr['arguments'][i], Precedence.Assignment, E_TTT)); + if (i + 1 < iz) { + result.push(',' + space); + } + } + result.push(')'); + + if (!(flags & F_ALLOW_CALL)) { + return ['(', result, ')']; + } + return parenthesize(result, Precedence.Call, precedence); + }, + + NewExpression: function (expr, precedence, flags) { + var result, length, i, iz, itemFlags; + length = expr['arguments'].length; + + // F_ALLOW_CALL becomes false. + // F_ALLOW_UNPARATH_NEW may become false. + itemFlags = (flags & F_ALLOW_UNPARATH_NEW && !parentheses && length === 0) ? E_TFT : E_TFF; + + result = join( + 'new', + this.generateExpression(expr.callee, Precedence.New, itemFlags) + ); + + if (!(flags & F_ALLOW_UNPARATH_NEW) || parentheses || length > 0) { + result.push('('); + for (i = 0, iz = length; i < iz; ++i) { + result.push(this.generateExpression(expr['arguments'][i], Precedence.Assignment, E_TTT)); + if (i + 1 < iz) { + result.push(',' + space); + } + } + result.push(')'); + } + + return parenthesize(result, Precedence.New, precedence); + }, + + MemberExpression: function (expr, precedence, flags) { + var result, fragment; + + // F_ALLOW_UNPARATH_NEW becomes false. + result = [this.generateExpression(expr.object, Precedence.Call, (flags & F_ALLOW_CALL) ? E_TTF : E_TFF)]; + + if (expr.computed) { + result.push('['); + result.push(this.generateExpression(expr.property, Precedence.Sequence, flags & F_ALLOW_CALL ? E_TTT : E_TFT)); + result.push(']'); + } else { + if (expr.object.type === Syntax.Literal && typeof expr.object.value === 'number') { + fragment = toSourceNodeWhenNeeded(result).toString(); + // When the following conditions are all true, + // 1. No floating point + // 2. Don't have exponents + // 3. The last character is a decimal digit + // 4. Not hexadecimal OR octal number literal + // we should add a floating point. + if ( + fragment.indexOf('.') < 0 && + !/[eExX]/.test(fragment) && + esutils.code.isDecimalDigit(fragment.charCodeAt(fragment.length - 1)) && + !(fragment.length >= 2 && fragment.charCodeAt(0) === 48) // '0' + ) { + result.push(' '); + } + } + result.push('.'); + result.push(generateIdentifier(expr.property)); + } + + return parenthesize(result, Precedence.Member, precedence); + }, + + MetaProperty: function (expr, precedence, flags) { + var result; + result = []; + result.push(typeof expr.meta === "string" ? expr.meta : generateIdentifier(expr.meta)); + result.push('.'); + result.push(typeof expr.property === "string" ? expr.property : generateIdentifier(expr.property)); + return parenthesize(result, Precedence.Member, precedence); + }, + + UnaryExpression: function (expr, precedence, flags) { + var result, fragment, rightCharCode, leftSource, leftCharCode; + fragment = this.generateExpression(expr.argument, Precedence.Unary, E_TTT); + + if (space === '') { + result = join(expr.operator, fragment); + } else { + result = [expr.operator]; + if (expr.operator.length > 2) { + // delete, void, typeof + // get `typeof []`, not `typeof[]` + result = join(result, fragment); + } else { + // Prevent inserting spaces between operator and argument if it is unnecessary + // like, `!cond` + leftSource = toSourceNodeWhenNeeded(result).toString(); + leftCharCode = leftSource.charCodeAt(leftSource.length - 1); + rightCharCode = fragment.toString().charCodeAt(0); + + if (((leftCharCode === 0x2B /* + */ || leftCharCode === 0x2D /* - */) && leftCharCode === rightCharCode) || + (esutils.code.isIdentifierPartES5(leftCharCode) && esutils.code.isIdentifierPartES5(rightCharCode))) { + result.push(noEmptySpace()); + result.push(fragment); + } else { + result.push(fragment); + } + } + } + return parenthesize(result, Precedence.Unary, precedence); + }, + + YieldExpression: function (expr, precedence, flags) { + var result; + if (expr.delegate) { + result = 'yield*'; + } else { + result = 'yield'; + } + if (expr.argument) { + result = join( + result, + this.generateExpression(expr.argument, Precedence.Yield, E_TTT) + ); + } + return parenthesize(result, Precedence.Yield, precedence); + }, + + AwaitExpression: function (expr, precedence, flags) { + var result = join( + expr.all ? 'await*' : 'await', + this.generateExpression(expr.argument, Precedence.Await, E_TTT) + ); + return parenthesize(result, Precedence.Await, precedence); + }, + + UpdateExpression: function (expr, precedence, flags) { + if (expr.prefix) { + return parenthesize( + [ + expr.operator, + this.generateExpression(expr.argument, Precedence.Unary, E_TTT) + ], + Precedence.Unary, + precedence + ); + } + return parenthesize( + [ + this.generateExpression(expr.argument, Precedence.Postfix, E_TTT), + expr.operator + ], + Precedence.Postfix, + precedence + ); + }, + + FunctionExpression: function (expr, precedence, flags) { + var result = [ + generateAsyncPrefix(expr, true), + 'function' + ]; + if (expr.id) { + result.push(generateStarSuffix(expr) || noEmptySpace()); + result.push(generateIdentifier(expr.id)); + } else { + result.push(generateStarSuffix(expr) || space); + } + result.push(this.generateFunctionBody(expr)); + return result; + }, + + ArrayPattern: function (expr, precedence, flags) { + return this.ArrayExpression(expr, precedence, flags, true); + }, + + ArrayExpression: function (expr, precedence, flags, isPattern) { + var result, multiline, that = this; + if (!expr.elements.length) { + return '[]'; + } + multiline = isPattern ? false : expr.elements.length > 1; + result = ['[', multiline ? newline : '']; + withIndent(function (indent) { + var i, iz; + for (i = 0, iz = expr.elements.length; i < iz; ++i) { + if (!expr.elements[i]) { + if (multiline) { + result.push(indent); + } + if (i + 1 === iz) { + result.push(','); + } + } else { + result.push(multiline ? indent : ''); + result.push(that.generateExpression(expr.elements[i], Precedence.Assignment, E_TTT)); + } + if (i + 1 < iz) { + result.push(',' + (multiline ? newline : space)); + } + } + }); + if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(multiline ? base : ''); + result.push(']'); + return result; + }, + + RestElement: function(expr, precedence, flags) { + return '...' + this.generatePattern(expr.argument); + }, + + ClassExpression: function (expr, precedence, flags) { + var result, fragment; + result = ['class']; + if (expr.id) { + result = join(result, this.generateExpression(expr.id, Precedence.Sequence, E_TTT)); + } + if (expr.superClass) { + fragment = join('extends', this.generateExpression(expr.superClass, Precedence.Assignment, E_TTT)); + result = join(result, fragment); + } + result.push(space); + result.push(this.generateStatement(expr.body, S_TFFT)); + return result; + }, + + MethodDefinition: function (expr, precedence, flags) { + var result, fragment; + if (expr['static']) { + result = ['static' + space]; + } else { + result = []; + } + if (expr.kind === 'get' || expr.kind === 'set') { + fragment = [ + join(expr.kind, this.generatePropertyKey(expr.key, expr.computed)), + this.generateFunctionBody(expr.value) + ]; + } else { + fragment = [ + generateMethodPrefix(expr), + this.generatePropertyKey(expr.key, expr.computed), + this.generateFunctionBody(expr.value) + ]; + } + return join(result, fragment); + }, + + Property: function (expr, precedence, flags) { + if (expr.kind === 'get' || expr.kind === 'set') { + return [ + expr.kind, noEmptySpace(), + this.generatePropertyKey(expr.key, expr.computed), + this.generateFunctionBody(expr.value) + ]; + } + + if (expr.shorthand) { + if (expr.value.type === "AssignmentPattern") { + return this.AssignmentPattern(expr.value, Precedence.Sequence, E_TTT); + } + return this.generatePropertyKey(expr.key, expr.computed); + } + + if (expr.method) { + return [ + generateMethodPrefix(expr), + this.generatePropertyKey(expr.key, expr.computed), + this.generateFunctionBody(expr.value) + ]; + } + + return [ + this.generatePropertyKey(expr.key, expr.computed), + ':' + space, + this.generateExpression(expr.value, Precedence.Assignment, E_TTT) + ]; + }, + + ObjectExpression: function (expr, precedence, flags) { + var multiline, result, fragment, that = this; + + if (!expr.properties.length) { + return '{}'; + } + multiline = expr.properties.length > 1; + + withIndent(function () { + fragment = that.generateExpression(expr.properties[0], Precedence.Sequence, E_TTT); + }); + + if (!multiline) { + // issues 4 + // Do not transform from + // dejavu.Class.declare({ + // method2: function () {} + // }); + // to + // dejavu.Class.declare({method2: function () { + // }}); + if (!hasLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) { + return [ '{', space, fragment, space, '}' ]; + } + } + + withIndent(function (indent) { + var i, iz; + result = [ '{', newline, indent, fragment ]; + + if (multiline) { + result.push(',' + newline); + for (i = 1, iz = expr.properties.length; i < iz; ++i) { + result.push(indent); + result.push(that.generateExpression(expr.properties[i], Precedence.Sequence, E_TTT)); + if (i + 1 < iz) { + result.push(',' + newline); + } + } + } + }); + + if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(base); + result.push('}'); + return result; + }, + + AssignmentPattern: function(expr, precedence, flags) { + return this.generateAssignment(expr.left, expr.right, '=', precedence, flags); + }, + + ObjectPattern: function (expr, precedence, flags) { + var result, i, iz, multiline, property, that = this; + if (!expr.properties.length) { + return '{}'; + } + + multiline = false; + if (expr.properties.length === 1) { + property = expr.properties[0]; + if (property.value.type !== Syntax.Identifier) { + multiline = true; + } + } else { + for (i = 0, iz = expr.properties.length; i < iz; ++i) { + property = expr.properties[i]; + if (!property.shorthand) { + multiline = true; + break; + } + } + } + result = ['{', multiline ? newline : '' ]; + + withIndent(function (indent) { + var i, iz; + for (i = 0, iz = expr.properties.length; i < iz; ++i) { + result.push(multiline ? indent : ''); + result.push(that.generateExpression(expr.properties[i], Precedence.Sequence, E_TTT)); + if (i + 1 < iz) { + result.push(',' + (multiline ? newline : space)); + } + } + }); + + if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) { + result.push(newline); + } + result.push(multiline ? base : ''); + result.push('}'); + return result; + }, + + ThisExpression: function (expr, precedence, flags) { + return 'this'; + }, + + Super: function (expr, precedence, flags) { + return 'super'; + }, + + Identifier: function (expr, precedence, flags) { + return generateIdentifier(expr); + }, + + ImportDefaultSpecifier: function (expr, precedence, flags) { + return generateIdentifier(expr.id || expr.local); + }, + + ImportNamespaceSpecifier: function (expr, precedence, flags) { + var result = ['*']; + var id = expr.id || expr.local; + if (id) { + result.push(space + 'as' + noEmptySpace() + generateIdentifier(id)); + } + return result; + }, + + ImportSpecifier: function (expr, precedence, flags) { + var imported = expr.imported; + var result = [ imported.name ]; + var local = expr.local; + if (local && local.name !== imported.name) { + result.push(noEmptySpace() + 'as' + noEmptySpace() + generateIdentifier(local)); + } + return result; + }, + + ExportSpecifier: function (expr, precedence, flags) { + var local = expr.local; + var result = [ local.name ]; + var exported = expr.exported; + if (exported && exported.name !== local.name) { + result.push(noEmptySpace() + 'as' + noEmptySpace() + generateIdentifier(exported)); + } + return result; + }, + + Literal: function (expr, precedence, flags) { + var raw; + if (expr.hasOwnProperty('raw') && parse && extra.raw) { + try { + raw = parse(expr.raw).body[0].expression; + if (raw.type === Syntax.Literal) { + if (raw.value === expr.value) { + return expr.raw; + } + } + } catch (e) { + // not use raw property + } + } + + if (expr.value === null) { + return 'null'; + } + + if (typeof expr.value === 'string') { + return escapeString(expr.value); + } + + if (typeof expr.value === 'number') { + return generateNumber(expr.value); + } + + if (typeof expr.value === 'boolean') { + return expr.value ? 'true' : 'false'; + } + + if (expr.regex) { + return '/' + expr.regex.pattern + '/' + expr.regex.flags; + } + return generateRegExp(expr.value); + }, + + GeneratorExpression: function (expr, precedence, flags) { + return this.ComprehensionExpression(expr, precedence, flags); + }, + + ComprehensionExpression: function (expr, precedence, flags) { + // GeneratorExpression should be parenthesized with (...), ComprehensionExpression with [...] + // Due to https://bugzilla.mozilla.org/show_bug.cgi?id=883468 position of expr.body can differ in Spidermonkey and ES6 + + var result, i, iz, fragment, that = this; + result = (expr.type === Syntax.GeneratorExpression) ? ['('] : ['[']; + + if (extra.moz.comprehensionExpressionStartsWithAssignment) { + fragment = this.generateExpression(expr.body, Precedence.Assignment, E_TTT); + result.push(fragment); + } + + if (expr.blocks) { + withIndent(function () { + for (i = 0, iz = expr.blocks.length; i < iz; ++i) { + fragment = that.generateExpression(expr.blocks[i], Precedence.Sequence, E_TTT); + if (i > 0 || extra.moz.comprehensionExpressionStartsWithAssignment) { + result = join(result, fragment); + } else { + result.push(fragment); + } + } + }); + } + + if (expr.filter) { + result = join(result, 'if' + space); + fragment = this.generateExpression(expr.filter, Precedence.Sequence, E_TTT); + result = join(result, [ '(', fragment, ')' ]); + } + + if (!extra.moz.comprehensionExpressionStartsWithAssignment) { + fragment = this.generateExpression(expr.body, Precedence.Assignment, E_TTT); + + result = join(result, fragment); + } + + result.push((expr.type === Syntax.GeneratorExpression) ? ')' : ']'); + return result; + }, + + ComprehensionBlock: function (expr, precedence, flags) { + var fragment; + if (expr.left.type === Syntax.VariableDeclaration) { + fragment = [ + expr.left.kind, noEmptySpace(), + this.generateStatement(expr.left.declarations[0], S_FFFF) + ]; + } else { + fragment = this.generateExpression(expr.left, Precedence.Call, E_TTT); + } + + fragment = join(fragment, expr.of ? 'of' : 'in'); + fragment = join(fragment, this.generateExpression(expr.right, Precedence.Sequence, E_TTT)); + + return [ 'for' + space + '(', fragment, ')' ]; + }, + + SpreadElement: function (expr, precedence, flags) { + return [ + '...', + this.generateExpression(expr.argument, Precedence.Assignment, E_TTT) + ]; + }, + + TaggedTemplateExpression: function (expr, precedence, flags) { + var itemFlags = E_TTF; + if (!(flags & F_ALLOW_CALL)) { + itemFlags = E_TFF; + } + var result = [ + this.generateExpression(expr.tag, Precedence.Call, itemFlags), + this.generateExpression(expr.quasi, Precedence.Primary, E_FFT) + ]; + return parenthesize(result, Precedence.TaggedTemplate, precedence); + }, + + TemplateElement: function (expr, precedence, flags) { + // Don't use "cooked". Since tagged template can use raw template + // representation. So if we do so, it breaks the script semantics. + return expr.value.raw; + }, + + TemplateLiteral: function (expr, precedence, flags) { + var result, i, iz; + result = [ '`' ]; + for (i = 0, iz = expr.quasis.length; i < iz; ++i) { + result.push(this.generateExpression(expr.quasis[i], Precedence.Primary, E_TTT)); + if (i + 1 < iz) { + result.push('${' + space); + result.push(this.generateExpression(expr.expressions[i], Precedence.Sequence, E_TTT)); + result.push(space + '}'); + } + } + result.push('`'); + return result; + }, + + ModuleSpecifier: function (expr, precedence, flags) { + return this.Literal(expr, precedence, flags); + } + + }; + + merge(CodeGenerator.prototype, CodeGenerator.Expression); + + CodeGenerator.prototype.generateExpression = function (expr, precedence, flags) { + var result, type; + + type = expr.type || Syntax.Property; + + if (extra.verbatim && expr.hasOwnProperty(extra.verbatim)) { + return generateVerbatim(expr, precedence); + } + + result = this[type](expr, precedence, flags); + + + if (extra.comment) { + result = addComments(expr, result); + } + return toSourceNodeWhenNeeded(result, expr); + }; + + CodeGenerator.prototype.generateStatement = function (stmt, flags) { + var result, + fragment; + + result = this[stmt.type](stmt, flags); + + // Attach comments + + if (extra.comment) { + result = addComments(stmt, result); + } + + fragment = toSourceNodeWhenNeeded(result).toString(); + if (stmt.type === Syntax.Program && !safeConcatenation && newline === '' && fragment.charAt(fragment.length - 1) === '\n') { + result = sourceMap ? toSourceNodeWhenNeeded(result).replaceRight(/\s+$/, '') : fragment.replace(/\s+$/, ''); + } + + return toSourceNodeWhenNeeded(result, stmt); + }; + + function generateInternal(node) { + var codegen; + + codegen = new CodeGenerator(); + if (isStatement(node)) { + return codegen.generateStatement(node, S_TFFF); + } + + if (isExpression(node)) { + return codegen.generateExpression(node, Precedence.Sequence, E_TTT); + } + + throw new Error('Unknown node type: ' + node.type); + } + + function generate(node, options) { + var defaultOptions = getDefaultOptions(), result, pair; + + if (options != null) { + // Obsolete options + // + // `options.indent` + // `options.base` + // + // Instead of them, we can use `option.format.indent`. + if (typeof options.indent === 'string') { + defaultOptions.format.indent.style = options.indent; + } + if (typeof options.base === 'number') { + defaultOptions.format.indent.base = options.base; + } + options = updateDeeply(defaultOptions, options); + indent = options.format.indent.style; + if (typeof options.base === 'string') { + base = options.base; + } else { + base = stringRepeat(indent, options.format.indent.base); + } + } else { + options = defaultOptions; + indent = options.format.indent.style; + base = stringRepeat(indent, options.format.indent.base); + } + json = options.format.json; + renumber = options.format.renumber; + hexadecimal = json ? false : options.format.hexadecimal; + quotes = json ? 'double' : options.format.quotes; + escapeless = options.format.escapeless; + newline = options.format.newline; + space = options.format.space; + if (options.format.compact) { + newline = space = indent = base = ''; + } + parentheses = options.format.parentheses; + semicolons = options.format.semicolons; + safeConcatenation = options.format.safeConcatenation; + directive = options.directive; + parse = json ? null : options.parse; + sourceMap = options.sourceMap; + sourceCode = options.sourceCode; + preserveBlankLines = options.format.preserveBlankLines && sourceCode !== null; + extra = options; + + if (sourceMap) { + if (!exports.browser) { + // We assume environment is node.js + // And prevent from including source-map by browserify + SourceNode = require('source-map').SourceNode; + } else { + SourceNode = global.sourceMap.SourceNode; + } + } + + result = generateInternal(node); + + if (!sourceMap) { + pair = {code: result.toString(), map: null}; + return options.sourceMapWithCode ? pair : pair.code; + } + + + pair = result.toStringWithSourceMap({ + file: options.file, + sourceRoot: options.sourceMapRoot + }); + + if (options.sourceContent) { + pair.map.setSourceContent(options.sourceMap, + options.sourceContent); + } + + if (options.sourceMapWithCode) { + return pair; + } + + return pair.map.toString(); + } + + FORMAT_MINIFY = { + indent: { + style: '', + base: 0 + }, + renumber: true, + hexadecimal: true, + quotes: 'auto', + escapeless: true, + compact: true, + parentheses: false, + semicolons: false + }; + + FORMAT_DEFAULTS = getDefaultOptions().format; + + exports.version = require('./package.json').version; + exports.generate = generate; + exports.attachComments = estraverse.attachComments; + exports.Precedence = updateDeeply({}, Precedence); + exports.browser = false; + exports.FORMAT_MINIFY = FORMAT_MINIFY; + exports.FORMAT_DEFAULTS = FORMAT_DEFAULTS; +}()); +/* vim: set sw=4 ts=4 et tw=80 : */ + +}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./package.json":13,"estraverse":15,"esutils":20,"source-map":12}],2:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +var util = require('./util'); +var has = Object.prototype.hasOwnProperty; +var hasNativeMap = typeof Map !== "undefined"; + +/** + * A data structure which is a combination of an array and a set. Adding a new + * member is O(1), testing for membership is O(1), and finding the index of an + * element is O(1). Removing elements from the set is not supported. Only + * strings are supported for membership. + */ +function ArraySet() { + this._array = []; + this._set = hasNativeMap ? new Map() : Object.create(null); +} + +/** + * Static method for creating ArraySet instances from an existing array. + */ +ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) { + var set = new ArraySet(); + for (var i = 0, len = aArray.length; i < len; i++) { + set.add(aArray[i], aAllowDuplicates); + } + return set; +}; + +/** + * Return how many unique items are in this ArraySet. If duplicates have been + * added, than those do not count towards the size. + * + * @returns Number + */ +ArraySet.prototype.size = function ArraySet_size() { + return hasNativeMap ? this._set.size : Object.getOwnPropertyNames(this._set).length; +}; + +/** + * Add the given string to this set. + * + * @param String aStr + */ +ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) { + var sStr = hasNativeMap ? aStr : util.toSetString(aStr); + var isDuplicate = hasNativeMap ? this.has(aStr) : has.call(this._set, sStr); + var idx = this._array.length; + if (!isDuplicate || aAllowDuplicates) { + this._array.push(aStr); + } + if (!isDuplicate) { + if (hasNativeMap) { + this._set.set(aStr, idx); + } else { + this._set[sStr] = idx; + } + } +}; + +/** + * Is the given string a member of this set? + * + * @param String aStr + */ +ArraySet.prototype.has = function ArraySet_has(aStr) { + if (hasNativeMap) { + return this._set.has(aStr); + } else { + var sStr = util.toSetString(aStr); + return has.call(this._set, sStr); + } +}; + +/** + * What is the index of the given string in the array? + * + * @param String aStr + */ +ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) { + if (hasNativeMap) { + var idx = this._set.get(aStr); + if (idx >= 0) { + return idx; + } + } else { + var sStr = util.toSetString(aStr); + if (has.call(this._set, sStr)) { + return this._set[sStr]; + } + } + + throw new Error('"' + aStr + '" is not in the set.'); +}; + +/** + * What is the element at the given index? + * + * @param Number aIdx + */ +ArraySet.prototype.at = function ArraySet_at(aIdx) { + if (aIdx >= 0 && aIdx < this._array.length) { + return this._array[aIdx]; + } + throw new Error('No element indexed by ' + aIdx); +}; + +/** + * Returns the array representation of this set (which has the proper indices + * indicated by indexOf). Note that this is a copy of the internal array used + * for storing the members so that no one can mess with internal state. + */ +ArraySet.prototype.toArray = function ArraySet_toArray() { + return this._array.slice(); +}; + +exports.ArraySet = ArraySet; + +},{"./util":11}],3:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + * + * Based on the Base 64 VLQ implementation in Closure Compiler: + * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java + * + * Copyright 2011 The Closure Compiler Authors. All rights reserved. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +var base64 = require('./base64'); + +// A single base 64 digit can contain 6 bits of data. For the base 64 variable +// length quantities we use in the source map spec, the first bit is the sign, +// the next four bits are the actual value, and the 6th bit is the +// continuation bit. The continuation bit tells us whether there are more +// digits in this value following this digit. +// +// Continuation +// | Sign +// | | +// V V +// 101011 + +var VLQ_BASE_SHIFT = 5; + +// binary: 100000 +var VLQ_BASE = 1 << VLQ_BASE_SHIFT; + +// binary: 011111 +var VLQ_BASE_MASK = VLQ_BASE - 1; + +// binary: 100000 +var VLQ_CONTINUATION_BIT = VLQ_BASE; + +/** + * Converts from a two-complement value to a value where the sign bit is + * placed in the least significant bit. For example, as decimals: + * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary) + * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary) + */ +function toVLQSigned(aValue) { + return aValue < 0 + ? ((-aValue) << 1) + 1 + : (aValue << 1) + 0; +} + +/** + * Converts to a two-complement value from a value where the sign bit is + * placed in the least significant bit. For example, as decimals: + * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1 + * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2 + */ +function fromVLQSigned(aValue) { + var isNegative = (aValue & 1) === 1; + var shifted = aValue >> 1; + return isNegative + ? -shifted + : shifted; +} + +/** + * Returns the base 64 VLQ encoded value. + */ +exports.encode = function base64VLQ_encode(aValue) { + var encoded = ""; + var digit; + + var vlq = toVLQSigned(aValue); + + do { + digit = vlq & VLQ_BASE_MASK; + vlq >>>= VLQ_BASE_SHIFT; + if (vlq > 0) { + // There are still more digits in this value, so we must make sure the + // continuation bit is marked. + digit |= VLQ_CONTINUATION_BIT; + } + encoded += base64.encode(digit); + } while (vlq > 0); + + return encoded; +}; + +/** + * Decodes the next base 64 VLQ value from the given string and returns the + * value and the rest of the string via the out parameter. + */ +exports.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) { + var strLen = aStr.length; + var result = 0; + var shift = 0; + var continuation, digit; + + do { + if (aIndex >= strLen) { + throw new Error("Expected more digits in base 64 VLQ value."); + } + + digit = base64.decode(aStr.charCodeAt(aIndex++)); + if (digit === -1) { + throw new Error("Invalid base64 digit: " + aStr.charAt(aIndex - 1)); + } + + continuation = !!(digit & VLQ_CONTINUATION_BIT); + digit &= VLQ_BASE_MASK; + result = result + (digit << shift); + shift += VLQ_BASE_SHIFT; + } while (continuation); + + aOutParam.value = fromVLQSigned(result); + aOutParam.rest = aIndex; +}; + +},{"./base64":4}],4:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split(''); + +/** + * Encode an integer in the range of 0 to 63 to a single base 64 digit. + */ +exports.encode = function (number) { + if (0 <= number && number < intToCharMap.length) { + return intToCharMap[number]; + } + throw new TypeError("Must be between 0 and 63: " + number); +}; + +/** + * Decode a single base 64 character code digit to an integer. Returns -1 on + * failure. + */ +exports.decode = function (charCode) { + var bigA = 65; // 'A' + var bigZ = 90; // 'Z' + + var littleA = 97; // 'a' + var littleZ = 122; // 'z' + + var zero = 48; // '0' + var nine = 57; // '9' + + var plus = 43; // '+' + var slash = 47; // '/' + + var littleOffset = 26; + var numberOffset = 52; + + // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ + if (bigA <= charCode && charCode <= bigZ) { + return (charCode - bigA); + } + + // 26 - 51: abcdefghijklmnopqrstuvwxyz + if (littleA <= charCode && charCode <= littleZ) { + return (charCode - littleA + littleOffset); + } + + // 52 - 61: 0123456789 + if (zero <= charCode && charCode <= nine) { + return (charCode - zero + numberOffset); + } + + // 62: + + if (charCode == plus) { + return 62; + } + + // 63: / + if (charCode == slash) { + return 63; + } + + // Invalid base64 digit. + return -1; +}; + +},{}],5:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +exports.GREATEST_LOWER_BOUND = 1; +exports.LEAST_UPPER_BOUND = 2; + +/** + * Recursive implementation of binary search. + * + * @param aLow Indices here and lower do not contain the needle. + * @param aHigh Indices here and higher do not contain the needle. + * @param aNeedle The element being searched for. + * @param aHaystack The non-empty array being searched. + * @param aCompare Function which takes two elements and returns -1, 0, or 1. + * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or + * 'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the + * closest element that is smaller than or greater than the one we are + * searching for, respectively, if the exact element cannot be found. + */ +function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) { + // This function terminates when one of the following is true: + // + // 1. We find the exact element we are looking for. + // + // 2. We did not find the exact element, but we can return the index of + // the next-closest element. + // + // 3. We did not find the exact element, and there is no next-closest + // element than the one we are searching for, so we return -1. + var mid = Math.floor((aHigh - aLow) / 2) + aLow; + var cmp = aCompare(aNeedle, aHaystack[mid], true); + if (cmp === 0) { + // Found the element we are looking for. + return mid; + } + else if (cmp > 0) { + // Our needle is greater than aHaystack[mid]. + if (aHigh - mid > 1) { + // The element is in the upper half. + return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias); + } + + // The exact needle element was not found in this haystack. Determine if + // we are in termination case (3) or (2) and return the appropriate thing. + if (aBias == exports.LEAST_UPPER_BOUND) { + return aHigh < aHaystack.length ? aHigh : -1; + } else { + return mid; + } + } + else { + // Our needle is less than aHaystack[mid]. + if (mid - aLow > 1) { + // The element is in the lower half. + return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias); + } + + // we are in termination case (3) or (2) and return the appropriate thing. + if (aBias == exports.LEAST_UPPER_BOUND) { + return mid; + } else { + return aLow < 0 ? -1 : aLow; + } + } +} + +/** + * This is an implementation of binary search which will always try and return + * the index of the closest element if there is no exact hit. This is because + * mappings between original and generated line/col pairs are single points, + * and there is an implicit region between each of them, so a miss just means + * that you aren't on the very start of a region. + * + * @param aNeedle The element you are looking for. + * @param aHaystack The array that is being searched. + * @param aCompare A function which takes the needle and an element in the + * array and returns -1, 0, or 1 depending on whether the needle is less + * than, equal to, or greater than the element, respectively. + * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or + * 'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the + * closest element that is smaller than or greater than the one we are + * searching for, respectively, if the exact element cannot be found. + * Defaults to 'binarySearch.GREATEST_LOWER_BOUND'. + */ +exports.search = function search(aNeedle, aHaystack, aCompare, aBias) { + if (aHaystack.length === 0) { + return -1; + } + + var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, + aCompare, aBias || exports.GREATEST_LOWER_BOUND); + if (index < 0) { + return -1; + } + + // We have found either the exact element, or the next-closest element than + // the one we are searching for. However, there may be more than one such + // element. Make sure we always return the smallest of these. + while (index - 1 >= 0) { + if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) { + break; + } + --index; + } + + return index; +}; + +},{}],6:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2014 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +var util = require('./util'); + +/** + * Determine whether mappingB is after mappingA with respect to generated + * position. + */ +function generatedPositionAfter(mappingA, mappingB) { + // Optimized for most common case + var lineA = mappingA.generatedLine; + var lineB = mappingB.generatedLine; + var columnA = mappingA.generatedColumn; + var columnB = mappingB.generatedColumn; + return lineB > lineA || lineB == lineA && columnB >= columnA || + util.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0; +} + +/** + * A data structure to provide a sorted view of accumulated mappings in a + * performance conscious manner. It trades a neglibable overhead in general + * case for a large speedup in case of mappings being added in order. + */ +function MappingList() { + this._array = []; + this._sorted = true; + // Serves as infimum + this._last = {generatedLine: -1, generatedColumn: 0}; +} + +/** + * Iterate through internal items. This method takes the same arguments that + * `Array.prototype.forEach` takes. + * + * NOTE: The order of the mappings is NOT guaranteed. + */ +MappingList.prototype.unsortedForEach = + function MappingList_forEach(aCallback, aThisArg) { + this._array.forEach(aCallback, aThisArg); + }; + +/** + * Add the given source mapping. + * + * @param Object aMapping + */ +MappingList.prototype.add = function MappingList_add(aMapping) { + if (generatedPositionAfter(this._last, aMapping)) { + this._last = aMapping; + this._array.push(aMapping); + } else { + this._sorted = false; + this._array.push(aMapping); + } +}; + +/** + * Returns the flat, sorted array of mappings. The mappings are sorted by + * generated position. + * + * WARNING: This method returns internal data without copying, for + * performance. The return value must NOT be mutated, and should be treated as + * an immutable borrow. If you want to take ownership, you must make your own + * copy. + */ +MappingList.prototype.toArray = function MappingList_toArray() { + if (!this._sorted) { + this._array.sort(util.compareByGeneratedPositionsInflated); + this._sorted = true; + } + return this._array; +}; + +exports.MappingList = MappingList; + +},{"./util":11}],7:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +// It turns out that some (most?) JavaScript engines don't self-host +// `Array.prototype.sort`. This makes sense because C++ will likely remain +// faster than JS when doing raw CPU-intensive sorting. However, when using a +// custom comparator function, calling back and forth between the VM's C++ and +// JIT'd JS is rather slow *and* loses JIT type information, resulting in +// worse generated code for the comparator function than would be optimal. In +// fact, when sorting with a comparator, these costs outweigh the benefits of +// sorting in C++. By using our own JS-implemented Quick Sort (below), we get +// a ~3500ms mean speed-up in `bench/bench.html`. + +/** + * Swap the elements indexed by `x` and `y` in the array `ary`. + * + * @param {Array} ary + * The array. + * @param {Number} x + * The index of the first item. + * @param {Number} y + * The index of the second item. + */ +function swap(ary, x, y) { + var temp = ary[x]; + ary[x] = ary[y]; + ary[y] = temp; +} + +/** + * Returns a random integer within the range `low .. high` inclusive. + * + * @param {Number} low + * The lower bound on the range. + * @param {Number} high + * The upper bound on the range. + */ +function randomIntInRange(low, high) { + return Math.round(low + (Math.random() * (high - low))); +} + +/** + * The Quick Sort algorithm. + * + * @param {Array} ary + * An array to sort. + * @param {function} comparator + * Function to use to compare two items. + * @param {Number} p + * Start index of the array + * @param {Number} r + * End index of the array + */ +function doQuickSort(ary, comparator, p, r) { + // If our lower bound is less than our upper bound, we (1) partition the + // array into two pieces and (2) recurse on each half. If it is not, this is + // the empty array and our base case. + + if (p < r) { + // (1) Partitioning. + // + // The partitioning chooses a pivot between `p` and `r` and moves all + // elements that are less than or equal to the pivot to the before it, and + // all the elements that are greater than it after it. The effect is that + // once partition is done, the pivot is in the exact place it will be when + // the array is put in sorted order, and it will not need to be moved + // again. This runs in O(n) time. + + // Always choose a random pivot so that an input array which is reverse + // sorted does not cause O(n^2) running time. + var pivotIndex = randomIntInRange(p, r); + var i = p - 1; + + swap(ary, pivotIndex, r); + var pivot = ary[r]; + + // Immediately after `j` is incremented in this loop, the following hold + // true: + // + // * Every element in `ary[p .. i]` is less than or equal to the pivot. + // + // * Every element in `ary[i+1 .. j-1]` is greater than the pivot. + for (var j = p; j < r; j++) { + if (comparator(ary[j], pivot) <= 0) { + i += 1; + swap(ary, i, j); + } + } + + swap(ary, i + 1, j); + var q = i + 1; + + // (2) Recurse on each half. + + doQuickSort(ary, comparator, p, q - 1); + doQuickSort(ary, comparator, q + 1, r); + } +} + +/** + * Sort the given array in-place with the given comparator function. + * + * @param {Array} ary + * An array to sort. + * @param {function} comparator + * Function to use to compare two items. + */ +exports.quickSort = function (ary, comparator) { + doQuickSort(ary, comparator, 0, ary.length - 1); +}; + +},{}],8:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +var util = require('./util'); +var binarySearch = require('./binary-search'); +var ArraySet = require('./array-set').ArraySet; +var base64VLQ = require('./base64-vlq'); +var quickSort = require('./quick-sort').quickSort; + +function SourceMapConsumer(aSourceMap, aSourceMapURL) { + var sourceMap = aSourceMap; + if (typeof aSourceMap === 'string') { + sourceMap = util.parseSourceMapInput(aSourceMap); + } + + return sourceMap.sections != null + ? new IndexedSourceMapConsumer(sourceMap, aSourceMapURL) + : new BasicSourceMapConsumer(sourceMap, aSourceMapURL); +} + +SourceMapConsumer.fromSourceMap = function(aSourceMap, aSourceMapURL) { + return BasicSourceMapConsumer.fromSourceMap(aSourceMap, aSourceMapURL); +} + +/** + * The version of the source mapping spec that we are consuming. + */ +SourceMapConsumer.prototype._version = 3; + +// `__generatedMappings` and `__originalMappings` are arrays that hold the +// parsed mapping coordinates from the source map's "mappings" attribute. They +// are lazily instantiated, accessed via the `_generatedMappings` and +// `_originalMappings` getters respectively, and we only parse the mappings +// and create these arrays once queried for a source location. We jump through +// these hoops because there can be many thousands of mappings, and parsing +// them is expensive, so we only want to do it if we must. +// +// Each object in the arrays is of the form: +// +// { +// generatedLine: The line number in the generated code, +// generatedColumn: The column number in the generated code, +// source: The path to the original source file that generated this +// chunk of code, +// originalLine: The line number in the original source that +// corresponds to this chunk of generated code, +// originalColumn: The column number in the original source that +// corresponds to this chunk of generated code, +// name: The name of the original symbol which generated this chunk of +// code. +// } +// +// All properties except for `generatedLine` and `generatedColumn` can be +// `null`. +// +// `_generatedMappings` is ordered by the generated positions. +// +// `_originalMappings` is ordered by the original positions. + +SourceMapConsumer.prototype.__generatedMappings = null; +Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', { + configurable: true, + enumerable: true, + get: function () { + if (!this.__generatedMappings) { + this._parseMappings(this._mappings, this.sourceRoot); + } + + return this.__generatedMappings; + } +}); + +SourceMapConsumer.prototype.__originalMappings = null; +Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', { + configurable: true, + enumerable: true, + get: function () { + if (!this.__originalMappings) { + this._parseMappings(this._mappings, this.sourceRoot); + } + + return this.__originalMappings; + } +}); + +SourceMapConsumer.prototype._charIsMappingSeparator = + function SourceMapConsumer_charIsMappingSeparator(aStr, index) { + var c = aStr.charAt(index); + return c === ";" || c === ","; + }; + +/** + * Parse the mappings in a string in to a data structure which we can easily + * query (the ordered arrays in the `this.__generatedMappings` and + * `this.__originalMappings` properties). + */ +SourceMapConsumer.prototype._parseMappings = + function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { + throw new Error("Subclasses must implement _parseMappings"); + }; + +SourceMapConsumer.GENERATED_ORDER = 1; +SourceMapConsumer.ORIGINAL_ORDER = 2; + +SourceMapConsumer.GREATEST_LOWER_BOUND = 1; +SourceMapConsumer.LEAST_UPPER_BOUND = 2; + +/** + * Iterate over each mapping between an original source/line/column and a + * generated line/column in this source map. + * + * @param Function aCallback + * The function that is called with each mapping. + * @param Object aContext + * Optional. If specified, this object will be the value of `this` every + * time that `aCallback` is called. + * @param aOrder + * Either `SourceMapConsumer.GENERATED_ORDER` or + * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to + * iterate over the mappings sorted by the generated file's line/column + * order or the original's source/line/column order, respectively. Defaults to + * `SourceMapConsumer.GENERATED_ORDER`. + */ +SourceMapConsumer.prototype.eachMapping = + function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) { + var context = aContext || null; + var order = aOrder || SourceMapConsumer.GENERATED_ORDER; + + var mappings; + switch (order) { + case SourceMapConsumer.GENERATED_ORDER: + mappings = this._generatedMappings; + break; + case SourceMapConsumer.ORIGINAL_ORDER: + mappings = this._originalMappings; + break; + default: + throw new Error("Unknown order of iteration."); + } + + var sourceRoot = this.sourceRoot; + mappings.map(function (mapping) { + var source = mapping.source === null ? null : this._sources.at(mapping.source); + source = util.computeSourceURL(sourceRoot, source, this._sourceMapURL); + return { + source: source, + generatedLine: mapping.generatedLine, + generatedColumn: mapping.generatedColumn, + originalLine: mapping.originalLine, + originalColumn: mapping.originalColumn, + name: mapping.name === null ? null : this._names.at(mapping.name) + }; + }, this).forEach(aCallback, context); + }; + +/** + * Returns all generated line and column information for the original source, + * line, and column provided. If no column is provided, returns all mappings + * corresponding to a either the line we are searching for or the next + * closest line that has any mappings. Otherwise, returns all mappings + * corresponding to the given line and either the column we are searching for + * or the next closest column that has any offsets. + * + * The only argument is an object with the following properties: + * + * - source: The filename of the original source. + * - line: The line number in the original source. The line number is 1-based. + * - column: Optional. the column number in the original source. + * The column number is 0-based. + * + * and an array of objects is returned, each with the following properties: + * + * - line: The line number in the generated source, or null. The + * line number is 1-based. + * - column: The column number in the generated source, or null. + * The column number is 0-based. + */ +SourceMapConsumer.prototype.allGeneratedPositionsFor = + function SourceMapConsumer_allGeneratedPositionsFor(aArgs) { + var line = util.getArg(aArgs, 'line'); + + // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping + // returns the index of the closest mapping less than the needle. By + // setting needle.originalColumn to 0, we thus find the last mapping for + // the given line, provided such a mapping exists. + var needle = { + source: util.getArg(aArgs, 'source'), + originalLine: line, + originalColumn: util.getArg(aArgs, 'column', 0) + }; + + needle.source = this._findSourceIndex(needle.source); + if (needle.source < 0) { + return []; + } + + var mappings = []; + + var index = this._findMapping(needle, + this._originalMappings, + "originalLine", + "originalColumn", + util.compareByOriginalPositions, + binarySearch.LEAST_UPPER_BOUND); + if (index >= 0) { + var mapping = this._originalMappings[index]; + + if (aArgs.column === undefined) { + var originalLine = mapping.originalLine; + + // Iterate until either we run out of mappings, or we run into + // a mapping for a different line than the one we found. Since + // mappings are sorted, this is guaranteed to find all mappings for + // the line we found. + while (mapping && mapping.originalLine === originalLine) { + mappings.push({ + line: util.getArg(mapping, 'generatedLine', null), + column: util.getArg(mapping, 'generatedColumn', null), + lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null) + }); + + mapping = this._originalMappings[++index]; + } + } else { + var originalColumn = mapping.originalColumn; + + // Iterate until either we run out of mappings, or we run into + // a mapping for a different line than the one we were searching for. + // Since mappings are sorted, this is guaranteed to find all mappings for + // the line we are searching for. + while (mapping && + mapping.originalLine === line && + mapping.originalColumn == originalColumn) { + mappings.push({ + line: util.getArg(mapping, 'generatedLine', null), + column: util.getArg(mapping, 'generatedColumn', null), + lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null) + }); + + mapping = this._originalMappings[++index]; + } + } + } + + return mappings; + }; + +exports.SourceMapConsumer = SourceMapConsumer; + +/** + * A BasicSourceMapConsumer instance represents a parsed source map which we can + * query for information about the original file positions by giving it a file + * position in the generated source. + * + * The first parameter is the raw source map (either as a JSON string, or + * already parsed to an object). According to the spec, source maps have the + * following attributes: + * + * - version: Which version of the source map spec this map is following. + * - sources: An array of URLs to the original source files. + * - names: An array of identifiers which can be referrenced by individual mappings. + * - sourceRoot: Optional. The URL root from which all sources are relative. + * - sourcesContent: Optional. An array of contents of the original source files. + * - mappings: A string of base64 VLQs which contain the actual mappings. + * - file: Optional. The generated file this source map is associated with. + * + * Here is an example source map, taken from the source map spec[0]: + * + * { + * version : 3, + * file: "out.js", + * sourceRoot : "", + * sources: ["foo.js", "bar.js"], + * names: ["src", "maps", "are", "fun"], + * mappings: "AA,AB;;ABCDE;" + * } + * + * The second parameter, if given, is a string whose value is the URL + * at which the source map was found. This URL is used to compute the + * sources array. + * + * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1# + */ +function BasicSourceMapConsumer(aSourceMap, aSourceMapURL) { + var sourceMap = aSourceMap; + if (typeof aSourceMap === 'string') { + sourceMap = util.parseSourceMapInput(aSourceMap); + } + + var version = util.getArg(sourceMap, 'version'); + var sources = util.getArg(sourceMap, 'sources'); + // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which + // requires the array) to play nice here. + var names = util.getArg(sourceMap, 'names', []); + var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null); + var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null); + var mappings = util.getArg(sourceMap, 'mappings'); + var file = util.getArg(sourceMap, 'file', null); + + // Once again, Sass deviates from the spec and supplies the version as a + // string rather than a number, so we use loose equality checking here. + if (version != this._version) { + throw new Error('Unsupported version: ' + version); + } + + if (sourceRoot) { + sourceRoot = util.normalize(sourceRoot); + } + + sources = sources + .map(String) + // Some source maps produce relative source paths like "./foo.js" instead of + // "foo.js". Normalize these first so that future comparisons will succeed. + // See bugzil.la/1090768. + .map(util.normalize) + // Always ensure that absolute sources are internally stored relative to + // the source root, if the source root is absolute. Not doing this would + // be particularly problematic when the source root is a prefix of the + // source (valid, but why??). See github issue #199 and bugzil.la/1188982. + .map(function (source) { + return sourceRoot && util.isAbsolute(sourceRoot) && util.isAbsolute(source) + ? util.relative(sourceRoot, source) + : source; + }); + + // Pass `true` below to allow duplicate names and sources. While source maps + // are intended to be compressed and deduplicated, the TypeScript compiler + // sometimes generates source maps with duplicates in them. See Github issue + // #72 and bugzil.la/889492. + this._names = ArraySet.fromArray(names.map(String), true); + this._sources = ArraySet.fromArray(sources, true); + + this._absoluteSources = this._sources.toArray().map(function (s) { + return util.computeSourceURL(sourceRoot, s, aSourceMapURL); + }); + + this.sourceRoot = sourceRoot; + this.sourcesContent = sourcesContent; + this._mappings = mappings; + this._sourceMapURL = aSourceMapURL; + this.file = file; +} + +BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype); +BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer; + +/** + * Utility function to find the index of a source. Returns -1 if not + * found. + */ +BasicSourceMapConsumer.prototype._findSourceIndex = function(aSource) { + var relativeSource = aSource; + if (this.sourceRoot != null) { + relativeSource = util.relative(this.sourceRoot, relativeSource); + } + + if (this._sources.has(relativeSource)) { + return this._sources.indexOf(relativeSource); + } + + // Maybe aSource is an absolute URL as returned by |sources|. In + // this case we can't simply undo the transform. + var i; + for (i = 0; i < this._absoluteSources.length; ++i) { + if (this._absoluteSources[i] == aSource) { + return i; + } + } + + return -1; +}; + +/** + * Create a BasicSourceMapConsumer from a SourceMapGenerator. + * + * @param SourceMapGenerator aSourceMap + * The source map that will be consumed. + * @param String aSourceMapURL + * The URL at which the source map can be found (optional) + * @returns BasicSourceMapConsumer + */ +BasicSourceMapConsumer.fromSourceMap = + function SourceMapConsumer_fromSourceMap(aSourceMap, aSourceMapURL) { + var smc = Object.create(BasicSourceMapConsumer.prototype); + + var names = smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true); + var sources = smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true); + smc.sourceRoot = aSourceMap._sourceRoot; + smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), + smc.sourceRoot); + smc.file = aSourceMap._file; + smc._sourceMapURL = aSourceMapURL; + smc._absoluteSources = smc._sources.toArray().map(function (s) { + return util.computeSourceURL(smc.sourceRoot, s, aSourceMapURL); + }); + + // Because we are modifying the entries (by converting string sources and + // names to indices into the sources and names ArraySets), we have to make + // a copy of the entry or else bad things happen. Shared mutable state + // strikes again! See github issue #191. + + var generatedMappings = aSourceMap._mappings.toArray().slice(); + var destGeneratedMappings = smc.__generatedMappings = []; + var destOriginalMappings = smc.__originalMappings = []; + + for (var i = 0, length = generatedMappings.length; i < length; i++) { + var srcMapping = generatedMappings[i]; + var destMapping = new Mapping; + destMapping.generatedLine = srcMapping.generatedLine; + destMapping.generatedColumn = srcMapping.generatedColumn; + + if (srcMapping.source) { + destMapping.source = sources.indexOf(srcMapping.source); + destMapping.originalLine = srcMapping.originalLine; + destMapping.originalColumn = srcMapping.originalColumn; + + if (srcMapping.name) { + destMapping.name = names.indexOf(srcMapping.name); + } + + destOriginalMappings.push(destMapping); + } + + destGeneratedMappings.push(destMapping); + } + + quickSort(smc.__originalMappings, util.compareByOriginalPositions); + + return smc; + }; + +/** + * The version of the source mapping spec that we are consuming. + */ +BasicSourceMapConsumer.prototype._version = 3; + +/** + * The list of original sources. + */ +Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', { + get: function () { + return this._absoluteSources.slice(); + } +}); + +/** + * Provide the JIT with a nice shape / hidden class. + */ +function Mapping() { + this.generatedLine = 0; + this.generatedColumn = 0; + this.source = null; + this.originalLine = null; + this.originalColumn = null; + this.name = null; +} + +/** + * Parse the mappings in a string in to a data structure which we can easily + * query (the ordered arrays in the `this.__generatedMappings` and + * `this.__originalMappings` properties). + */ +BasicSourceMapConsumer.prototype._parseMappings = + function SourceMapConsumer_parseMappings(aStr, aSourceRoot) { + var generatedLine = 1; + var previousGeneratedColumn = 0; + var previousOriginalLine = 0; + var previousOriginalColumn = 0; + var previousSource = 0; + var previousName = 0; + var length = aStr.length; + var index = 0; + var cachedSegments = {}; + var temp = {}; + var originalMappings = []; + var generatedMappings = []; + var mapping, str, segment, end, value; + + while (index < length) { + if (aStr.charAt(index) === ';') { + generatedLine++; + index++; + previousGeneratedColumn = 0; + } + else if (aStr.charAt(index) === ',') { + index++; + } + else { + mapping = new Mapping(); + mapping.generatedLine = generatedLine; + + // Because each offset is encoded relative to the previous one, + // many segments often have the same encoding. We can exploit this + // fact by caching the parsed variable length fields of each segment, + // allowing us to avoid a second parse if we encounter the same + // segment again. + for (end = index; end < length; end++) { + if (this._charIsMappingSeparator(aStr, end)) { + break; + } + } + str = aStr.slice(index, end); + + segment = cachedSegments[str]; + if (segment) { + index += str.length; + } else { + segment = []; + while (index < end) { + base64VLQ.decode(aStr, index, temp); + value = temp.value; + index = temp.rest; + segment.push(value); + } + + if (segment.length === 2) { + throw new Error('Found a source, but no line and column'); + } + + if (segment.length === 3) { + throw new Error('Found a source and line, but no column'); + } + + cachedSegments[str] = segment; + } + + // Generated column. + mapping.generatedColumn = previousGeneratedColumn + segment[0]; + previousGeneratedColumn = mapping.generatedColumn; + + if (segment.length > 1) { + // Original source. + mapping.source = previousSource + segment[1]; + previousSource += segment[1]; + + // Original line. + mapping.originalLine = previousOriginalLine + segment[2]; + previousOriginalLine = mapping.originalLine; + // Lines are stored 0-based + mapping.originalLine += 1; + + // Original column. + mapping.originalColumn = previousOriginalColumn + segment[3]; + previousOriginalColumn = mapping.originalColumn; + + if (segment.length > 4) { + // Original name. + mapping.name = previousName + segment[4]; + previousName += segment[4]; + } + } + + generatedMappings.push(mapping); + if (typeof mapping.originalLine === 'number') { + originalMappings.push(mapping); + } + } + } + + quickSort(generatedMappings, util.compareByGeneratedPositionsDeflated); + this.__generatedMappings = generatedMappings; + + quickSort(originalMappings, util.compareByOriginalPositions); + this.__originalMappings = originalMappings; + }; + +/** + * Find the mapping that best matches the hypothetical "needle" mapping that + * we are searching for in the given "haystack" of mappings. + */ +BasicSourceMapConsumer.prototype._findMapping = + function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, + aColumnName, aComparator, aBias) { + // To return the position we are searching for, we must first find the + // mapping for the given position and then return the opposite position it + // points to. Because the mappings are sorted, we can use binary search to + // find the best mapping. + + if (aNeedle[aLineName] <= 0) { + throw new TypeError('Line must be greater than or equal to 1, got ' + + aNeedle[aLineName]); + } + if (aNeedle[aColumnName] < 0) { + throw new TypeError('Column must be greater than or equal to 0, got ' + + aNeedle[aColumnName]); + } + + return binarySearch.search(aNeedle, aMappings, aComparator, aBias); + }; + +/** + * Compute the last column for each generated mapping. The last column is + * inclusive. + */ +BasicSourceMapConsumer.prototype.computeColumnSpans = + function SourceMapConsumer_computeColumnSpans() { + for (var index = 0; index < this._generatedMappings.length; ++index) { + var mapping = this._generatedMappings[index]; + + // Mappings do not contain a field for the last generated columnt. We + // can come up with an optimistic estimate, however, by assuming that + // mappings are contiguous (i.e. given two consecutive mappings, the + // first mapping ends where the second one starts). + if (index + 1 < this._generatedMappings.length) { + var nextMapping = this._generatedMappings[index + 1]; + + if (mapping.generatedLine === nextMapping.generatedLine) { + mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1; + continue; + } + } + + // The last mapping for each line spans the entire line. + mapping.lastGeneratedColumn = Infinity; + } + }; + +/** + * Returns the original source, line, and column information for the generated + * source's line and column positions provided. The only argument is an object + * with the following properties: + * + * - line: The line number in the generated source. The line number + * is 1-based. + * - column: The column number in the generated source. The column + * number is 0-based. + * - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or + * 'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the + * closest element that is smaller than or greater than the one we are + * searching for, respectively, if the exact element cannot be found. + * Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'. + * + * and an object is returned with the following properties: + * + * - source: The original source file, or null. + * - line: The line number in the original source, or null. The + * line number is 1-based. + * - column: The column number in the original source, or null. The + * column number is 0-based. + * - name: The original identifier, or null. + */ +BasicSourceMapConsumer.prototype.originalPositionFor = + function SourceMapConsumer_originalPositionFor(aArgs) { + var needle = { + generatedLine: util.getArg(aArgs, 'line'), + generatedColumn: util.getArg(aArgs, 'column') + }; + + var index = this._findMapping( + needle, + this._generatedMappings, + "generatedLine", + "generatedColumn", + util.compareByGeneratedPositionsDeflated, + util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND) + ); + + if (index >= 0) { + var mapping = this._generatedMappings[index]; + + if (mapping.generatedLine === needle.generatedLine) { + var source = util.getArg(mapping, 'source', null); + if (source !== null) { + source = this._sources.at(source); + source = util.computeSourceURL(this.sourceRoot, source, this._sourceMapURL); + } + var name = util.getArg(mapping, 'name', null); + if (name !== null) { + name = this._names.at(name); + } + return { + source: source, + line: util.getArg(mapping, 'originalLine', null), + column: util.getArg(mapping, 'originalColumn', null), + name: name + }; + } + } + + return { + source: null, + line: null, + column: null, + name: null + }; + }; + +/** + * Return true if we have the source content for every source in the source + * map, false otherwise. + */ +BasicSourceMapConsumer.prototype.hasContentsOfAllSources = + function BasicSourceMapConsumer_hasContentsOfAllSources() { + if (!this.sourcesContent) { + return false; + } + return this.sourcesContent.length >= this._sources.size() && + !this.sourcesContent.some(function (sc) { return sc == null; }); + }; + +/** + * Returns the original source content. The only argument is the url of the + * original source file. Returns null if no original source content is + * available. + */ +BasicSourceMapConsumer.prototype.sourceContentFor = + function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) { + if (!this.sourcesContent) { + return null; + } + + var index = this._findSourceIndex(aSource); + if (index >= 0) { + return this.sourcesContent[index]; + } + + var relativeSource = aSource; + if (this.sourceRoot != null) { + relativeSource = util.relative(this.sourceRoot, relativeSource); + } + + var url; + if (this.sourceRoot != null + && (url = util.urlParse(this.sourceRoot))) { + // XXX: file:// URIs and absolute paths lead to unexpected behavior for + // many users. We can help them out when they expect file:// URIs to + // behave like it would if they were running a local HTTP server. See + // https://bugzilla.mozilla.org/show_bug.cgi?id=885597. + var fileUriAbsPath = relativeSource.replace(/^file:\/\//, ""); + if (url.scheme == "file" + && this._sources.has(fileUriAbsPath)) { + return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)] + } + + if ((!url.path || url.path == "/") + && this._sources.has("/" + relativeSource)) { + return this.sourcesContent[this._sources.indexOf("/" + relativeSource)]; + } + } + + // This function is used recursively from + // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we + // don't want to throw if we can't find the source - we just want to + // return null, so we provide a flag to exit gracefully. + if (nullOnMissing) { + return null; + } + else { + throw new Error('"' + relativeSource + '" is not in the SourceMap.'); + } + }; + +/** + * Returns the generated line and column information for the original source, + * line, and column positions provided. The only argument is an object with + * the following properties: + * + * - source: The filename of the original source. + * - line: The line number in the original source. The line number + * is 1-based. + * - column: The column number in the original source. The column + * number is 0-based. + * - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or + * 'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the + * closest element that is smaller than or greater than the one we are + * searching for, respectively, if the exact element cannot be found. + * Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'. + * + * and an object is returned with the following properties: + * + * - line: The line number in the generated source, or null. The + * line number is 1-based. + * - column: The column number in the generated source, or null. + * The column number is 0-based. + */ +BasicSourceMapConsumer.prototype.generatedPositionFor = + function SourceMapConsumer_generatedPositionFor(aArgs) { + var source = util.getArg(aArgs, 'source'); + source = this._findSourceIndex(source); + if (source < 0) { + return { + line: null, + column: null, + lastColumn: null + }; + } + + var needle = { + source: source, + originalLine: util.getArg(aArgs, 'line'), + originalColumn: util.getArg(aArgs, 'column') + }; + + var index = this._findMapping( + needle, + this._originalMappings, + "originalLine", + "originalColumn", + util.compareByOriginalPositions, + util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND) + ); + + if (index >= 0) { + var mapping = this._originalMappings[index]; + + if (mapping.source === needle.source) { + return { + line: util.getArg(mapping, 'generatedLine', null), + column: util.getArg(mapping, 'generatedColumn', null), + lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null) + }; + } + } + + return { + line: null, + column: null, + lastColumn: null + }; + }; + +exports.BasicSourceMapConsumer = BasicSourceMapConsumer; + +/** + * An IndexedSourceMapConsumer instance represents a parsed source map which + * we can query for information. It differs from BasicSourceMapConsumer in + * that it takes "indexed" source maps (i.e. ones with a "sections" field) as + * input. + * + * The first parameter is a raw source map (either as a JSON string, or already + * parsed to an object). According to the spec for indexed source maps, they + * have the following attributes: + * + * - version: Which version of the source map spec this map is following. + * - file: Optional. The generated file this source map is associated with. + * - sections: A list of section definitions. + * + * Each value under the "sections" field has two fields: + * - offset: The offset into the original specified at which this section + * begins to apply, defined as an object with a "line" and "column" + * field. + * - map: A source map definition. This source map could also be indexed, + * but doesn't have to be. + * + * Instead of the "map" field, it's also possible to have a "url" field + * specifying a URL to retrieve a source map from, but that's currently + * unsupported. + * + * Here's an example source map, taken from the source map spec[0], but + * modified to omit a section which uses the "url" field. + * + * { + * version : 3, + * file: "app.js", + * sections: [{ + * offset: {line:100, column:10}, + * map: { + * version : 3, + * file: "section.js", + * sources: ["foo.js", "bar.js"], + * names: ["src", "maps", "are", "fun"], + * mappings: "AAAA,E;;ABCDE;" + * } + * }], + * } + * + * The second parameter, if given, is a string whose value is the URL + * at which the source map was found. This URL is used to compute the + * sources array. + * + * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt + */ +function IndexedSourceMapConsumer(aSourceMap, aSourceMapURL) { + var sourceMap = aSourceMap; + if (typeof aSourceMap === 'string') { + sourceMap = util.parseSourceMapInput(aSourceMap); + } + + var version = util.getArg(sourceMap, 'version'); + var sections = util.getArg(sourceMap, 'sections'); + + if (version != this._version) { + throw new Error('Unsupported version: ' + version); + } + + this._sources = new ArraySet(); + this._names = new ArraySet(); + + var lastOffset = { + line: -1, + column: 0 + }; + this._sections = sections.map(function (s) { + if (s.url) { + // The url field will require support for asynchronicity. + // See https://github.com/mozilla/source-map/issues/16 + throw new Error('Support for url field in sections not implemented.'); + } + var offset = util.getArg(s, 'offset'); + var offsetLine = util.getArg(offset, 'line'); + var offsetColumn = util.getArg(offset, 'column'); + + if (offsetLine < lastOffset.line || + (offsetLine === lastOffset.line && offsetColumn < lastOffset.column)) { + throw new Error('Section offsets must be ordered and non-overlapping.'); + } + lastOffset = offset; + + return { + generatedOffset: { + // The offset fields are 0-based, but we use 1-based indices when + // encoding/decoding from VLQ. + generatedLine: offsetLine + 1, + generatedColumn: offsetColumn + 1 + }, + consumer: new SourceMapConsumer(util.getArg(s, 'map'), aSourceMapURL) + } + }); +} + +IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype); +IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer; + +/** + * The version of the source mapping spec that we are consuming. + */ +IndexedSourceMapConsumer.prototype._version = 3; + +/** + * The list of original sources. + */ +Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', { + get: function () { + var sources = []; + for (var i = 0; i < this._sections.length; i++) { + for (var j = 0; j < this._sections[i].consumer.sources.length; j++) { + sources.push(this._sections[i].consumer.sources[j]); + } + } + return sources; + } +}); + +/** + * Returns the original source, line, and column information for the generated + * source's line and column positions provided. The only argument is an object + * with the following properties: + * + * - line: The line number in the generated source. The line number + * is 1-based. + * - column: The column number in the generated source. The column + * number is 0-based. + * + * and an object is returned with the following properties: + * + * - source: The original source file, or null. + * - line: The line number in the original source, or null. The + * line number is 1-based. + * - column: The column number in the original source, or null. The + * column number is 0-based. + * - name: The original identifier, or null. + */ +IndexedSourceMapConsumer.prototype.originalPositionFor = + function IndexedSourceMapConsumer_originalPositionFor(aArgs) { + var needle = { + generatedLine: util.getArg(aArgs, 'line'), + generatedColumn: util.getArg(aArgs, 'column') + }; + + // Find the section containing the generated position we're trying to map + // to an original position. + var sectionIndex = binarySearch.search(needle, this._sections, + function(needle, section) { + var cmp = needle.generatedLine - section.generatedOffset.generatedLine; + if (cmp) { + return cmp; + } + + return (needle.generatedColumn - + section.generatedOffset.generatedColumn); + }); + var section = this._sections[sectionIndex]; + + if (!section) { + return { + source: null, + line: null, + column: null, + name: null + }; + } + + return section.consumer.originalPositionFor({ + line: needle.generatedLine - + (section.generatedOffset.generatedLine - 1), + column: needle.generatedColumn - + (section.generatedOffset.generatedLine === needle.generatedLine + ? section.generatedOffset.generatedColumn - 1 + : 0), + bias: aArgs.bias + }); + }; + +/** + * Return true if we have the source content for every source in the source + * map, false otherwise. + */ +IndexedSourceMapConsumer.prototype.hasContentsOfAllSources = + function IndexedSourceMapConsumer_hasContentsOfAllSources() { + return this._sections.every(function (s) { + return s.consumer.hasContentsOfAllSources(); + }); + }; + +/** + * Returns the original source content. The only argument is the url of the + * original source file. Returns null if no original source content is + * available. + */ +IndexedSourceMapConsumer.prototype.sourceContentFor = + function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) { + for (var i = 0; i < this._sections.length; i++) { + var section = this._sections[i]; + + var content = section.consumer.sourceContentFor(aSource, true); + if (content) { + return content; + } + } + if (nullOnMissing) { + return null; + } + else { + throw new Error('"' + aSource + '" is not in the SourceMap.'); + } + }; + +/** + * Returns the generated line and column information for the original source, + * line, and column positions provided. The only argument is an object with + * the following properties: + * + * - source: The filename of the original source. + * - line: The line number in the original source. The line number + * is 1-based. + * - column: The column number in the original source. The column + * number is 0-based. + * + * and an object is returned with the following properties: + * + * - line: The line number in the generated source, or null. The + * line number is 1-based. + * - column: The column number in the generated source, or null. + * The column number is 0-based. + */ +IndexedSourceMapConsumer.prototype.generatedPositionFor = + function IndexedSourceMapConsumer_generatedPositionFor(aArgs) { + for (var i = 0; i < this._sections.length; i++) { + var section = this._sections[i]; + + // Only consider this section if the requested source is in the list of + // sources of the consumer. + if (section.consumer._findSourceIndex(util.getArg(aArgs, 'source')) === -1) { + continue; + } + var generatedPosition = section.consumer.generatedPositionFor(aArgs); + if (generatedPosition) { + var ret = { + line: generatedPosition.line + + (section.generatedOffset.generatedLine - 1), + column: generatedPosition.column + + (section.generatedOffset.generatedLine === generatedPosition.line + ? section.generatedOffset.generatedColumn - 1 + : 0) + }; + return ret; + } + } + + return { + line: null, + column: null + }; + }; + +/** + * Parse the mappings in a string in to a data structure which we can easily + * query (the ordered arrays in the `this.__generatedMappings` and + * `this.__originalMappings` properties). + */ +IndexedSourceMapConsumer.prototype._parseMappings = + function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) { + this.__generatedMappings = []; + this.__originalMappings = []; + for (var i = 0; i < this._sections.length; i++) { + var section = this._sections[i]; + var sectionMappings = section.consumer._generatedMappings; + for (var j = 0; j < sectionMappings.length; j++) { + var mapping = sectionMappings[j]; + + var source = section.consumer._sources.at(mapping.source); + source = util.computeSourceURL(section.consumer.sourceRoot, source, this._sourceMapURL); + this._sources.add(source); + source = this._sources.indexOf(source); + + var name = null; + if (mapping.name) { + name = section.consumer._names.at(mapping.name); + this._names.add(name); + name = this._names.indexOf(name); + } + + // The mappings coming from the consumer for the section have + // generated positions relative to the start of the section, so we + // need to offset them to be relative to the start of the concatenated + // generated file. + var adjustedMapping = { + source: source, + generatedLine: mapping.generatedLine + + (section.generatedOffset.generatedLine - 1), + generatedColumn: mapping.generatedColumn + + (section.generatedOffset.generatedLine === mapping.generatedLine + ? section.generatedOffset.generatedColumn - 1 + : 0), + originalLine: mapping.originalLine, + originalColumn: mapping.originalColumn, + name: name + }; + + this.__generatedMappings.push(adjustedMapping); + if (typeof adjustedMapping.originalLine === 'number') { + this.__originalMappings.push(adjustedMapping); + } + } + } + + quickSort(this.__generatedMappings, util.compareByGeneratedPositionsDeflated); + quickSort(this.__originalMappings, util.compareByOriginalPositions); + }; + +exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer; + +},{"./array-set":2,"./base64-vlq":3,"./binary-search":5,"./quick-sort":7,"./util":11}],9:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +var base64VLQ = require('./base64-vlq'); +var util = require('./util'); +var ArraySet = require('./array-set').ArraySet; +var MappingList = require('./mapping-list').MappingList; + +/** + * An instance of the SourceMapGenerator represents a source map which is + * being built incrementally. You may pass an object with the following + * properties: + * + * - file: The filename of the generated source. + * - sourceRoot: A root for all relative URLs in this source map. + */ +function SourceMapGenerator(aArgs) { + if (!aArgs) { + aArgs = {}; + } + this._file = util.getArg(aArgs, 'file', null); + this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null); + this._skipValidation = util.getArg(aArgs, 'skipValidation', false); + this._sources = new ArraySet(); + this._names = new ArraySet(); + this._mappings = new MappingList(); + this._sourcesContents = null; +} + +SourceMapGenerator.prototype._version = 3; + +/** + * Creates a new SourceMapGenerator based on a SourceMapConsumer + * + * @param aSourceMapConsumer The SourceMap. + */ +SourceMapGenerator.fromSourceMap = + function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) { + var sourceRoot = aSourceMapConsumer.sourceRoot; + var generator = new SourceMapGenerator({ + file: aSourceMapConsumer.file, + sourceRoot: sourceRoot + }); + aSourceMapConsumer.eachMapping(function (mapping) { + var newMapping = { + generated: { + line: mapping.generatedLine, + column: mapping.generatedColumn + } + }; + + if (mapping.source != null) { + newMapping.source = mapping.source; + if (sourceRoot != null) { + newMapping.source = util.relative(sourceRoot, newMapping.source); + } + + newMapping.original = { + line: mapping.originalLine, + column: mapping.originalColumn + }; + + if (mapping.name != null) { + newMapping.name = mapping.name; + } + } + + generator.addMapping(newMapping); + }); + aSourceMapConsumer.sources.forEach(function (sourceFile) { + var sourceRelative = sourceFile; + if (sourceRoot !== null) { + sourceRelative = util.relative(sourceRoot, sourceFile); + } + + if (!generator._sources.has(sourceRelative)) { + generator._sources.add(sourceRelative); + } + + var content = aSourceMapConsumer.sourceContentFor(sourceFile); + if (content != null) { + generator.setSourceContent(sourceFile, content); + } + }); + return generator; + }; + +/** + * Add a single mapping from original source line and column to the generated + * source's line and column for this source map being created. The mapping + * object should have the following properties: + * + * - generated: An object with the generated line and column positions. + * - original: An object with the original line and column positions. + * - source: The original source file (relative to the sourceRoot). + * - name: An optional original token name for this mapping. + */ +SourceMapGenerator.prototype.addMapping = + function SourceMapGenerator_addMapping(aArgs) { + var generated = util.getArg(aArgs, 'generated'); + var original = util.getArg(aArgs, 'original', null); + var source = util.getArg(aArgs, 'source', null); + var name = util.getArg(aArgs, 'name', null); + + if (!this._skipValidation) { + this._validateMapping(generated, original, source, name); + } + + if (source != null) { + source = String(source); + if (!this._sources.has(source)) { + this._sources.add(source); + } + } + + if (name != null) { + name = String(name); + if (!this._names.has(name)) { + this._names.add(name); + } + } + + this._mappings.add({ + generatedLine: generated.line, + generatedColumn: generated.column, + originalLine: original != null && original.line, + originalColumn: original != null && original.column, + source: source, + name: name + }); + }; + +/** + * Set the source content for a source file. + */ +SourceMapGenerator.prototype.setSourceContent = + function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) { + var source = aSourceFile; + if (this._sourceRoot != null) { + source = util.relative(this._sourceRoot, source); + } + + if (aSourceContent != null) { + // Add the source content to the _sourcesContents map. + // Create a new _sourcesContents map if the property is null. + if (!this._sourcesContents) { + this._sourcesContents = Object.create(null); + } + this._sourcesContents[util.toSetString(source)] = aSourceContent; + } else if (this._sourcesContents) { + // Remove the source file from the _sourcesContents map. + // If the _sourcesContents map is empty, set the property to null. + delete this._sourcesContents[util.toSetString(source)]; + if (Object.keys(this._sourcesContents).length === 0) { + this._sourcesContents = null; + } + } + }; + +/** + * Applies the mappings of a sub-source-map for a specific source file to the + * source map being generated. Each mapping to the supplied source file is + * rewritten using the supplied source map. Note: The resolution for the + * resulting mappings is the minimium of this map and the supplied map. + * + * @param aSourceMapConsumer The source map to be applied. + * @param aSourceFile Optional. The filename of the source file. + * If omitted, SourceMapConsumer's file property will be used. + * @param aSourceMapPath Optional. The dirname of the path to the source map + * to be applied. If relative, it is relative to the SourceMapConsumer. + * This parameter is needed when the two source maps aren't in the same + * directory, and the source map to be applied contains relative source + * paths. If so, those relative source paths need to be rewritten + * relative to the SourceMapGenerator. + */ +SourceMapGenerator.prototype.applySourceMap = + function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) { + var sourceFile = aSourceFile; + // If aSourceFile is omitted, we will use the file property of the SourceMap + if (aSourceFile == null) { + if (aSourceMapConsumer.file == null) { + throw new Error( + 'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' + + 'or the source map\'s "file" property. Both were omitted.' + ); + } + sourceFile = aSourceMapConsumer.file; + } + var sourceRoot = this._sourceRoot; + // Make "sourceFile" relative if an absolute Url is passed. + if (sourceRoot != null) { + sourceFile = util.relative(sourceRoot, sourceFile); + } + // Applying the SourceMap can add and remove items from the sources and + // the names array. + var newSources = new ArraySet(); + var newNames = new ArraySet(); + + // Find mappings for the "sourceFile" + this._mappings.unsortedForEach(function (mapping) { + if (mapping.source === sourceFile && mapping.originalLine != null) { + // Check if it can be mapped by the source map, then update the mapping. + var original = aSourceMapConsumer.originalPositionFor({ + line: mapping.originalLine, + column: mapping.originalColumn + }); + if (original.source != null) { + // Copy mapping + mapping.source = original.source; + if (aSourceMapPath != null) { + mapping.source = util.join(aSourceMapPath, mapping.source) + } + if (sourceRoot != null) { + mapping.source = util.relative(sourceRoot, mapping.source); + } + mapping.originalLine = original.line; + mapping.originalColumn = original.column; + if (original.name != null) { + mapping.name = original.name; + } + } + } + + var source = mapping.source; + if (source != null && !newSources.has(source)) { + newSources.add(source); + } + + var name = mapping.name; + if (name != null && !newNames.has(name)) { + newNames.add(name); + } + + }, this); + this._sources = newSources; + this._names = newNames; + + // Copy sourcesContents of applied map. + aSourceMapConsumer.sources.forEach(function (sourceFile) { + var content = aSourceMapConsumer.sourceContentFor(sourceFile); + if (content != null) { + if (aSourceMapPath != null) { + sourceFile = util.join(aSourceMapPath, sourceFile); + } + if (sourceRoot != null) { + sourceFile = util.relative(sourceRoot, sourceFile); + } + this.setSourceContent(sourceFile, content); + } + }, this); + }; + +/** + * A mapping can have one of the three levels of data: + * + * 1. Just the generated position. + * 2. The Generated position, original position, and original source. + * 3. Generated and original position, original source, as well as a name + * token. + * + * To maintain consistency, we validate that any new mapping being added falls + * in to one of these categories. + */ +SourceMapGenerator.prototype._validateMapping = + function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, + aName) { + // When aOriginal is truthy but has empty values for .line and .column, + // it is most likely a programmer error. In this case we throw a very + // specific error message to try to guide them the right way. + // For example: https://github.com/Polymer/polymer-bundler/pull/519 + if (aOriginal && typeof aOriginal.line !== 'number' && typeof aOriginal.column !== 'number') { + throw new Error( + 'original.line and original.column are not numbers -- you probably meant to omit ' + + 'the original mapping entirely and only map the generated position. If so, pass ' + + 'null for the original mapping instead of an object with empty or null values.' + ); + } + + if (aGenerated && 'line' in aGenerated && 'column' in aGenerated + && aGenerated.line > 0 && aGenerated.column >= 0 + && !aOriginal && !aSource && !aName) { + // Case 1. + return; + } + else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated + && aOriginal && 'line' in aOriginal && 'column' in aOriginal + && aGenerated.line > 0 && aGenerated.column >= 0 + && aOriginal.line > 0 && aOriginal.column >= 0 + && aSource) { + // Cases 2 and 3. + return; + } + else { + throw new Error('Invalid mapping: ' + JSON.stringify({ + generated: aGenerated, + source: aSource, + original: aOriginal, + name: aName + })); + } + }; + +/** + * Serialize the accumulated mappings in to the stream of base 64 VLQs + * specified by the source map format. + */ +SourceMapGenerator.prototype._serializeMappings = + function SourceMapGenerator_serializeMappings() { + var previousGeneratedColumn = 0; + var previousGeneratedLine = 1; + var previousOriginalColumn = 0; + var previousOriginalLine = 0; + var previousName = 0; + var previousSource = 0; + var result = ''; + var next; + var mapping; + var nameIdx; + var sourceIdx; + + var mappings = this._mappings.toArray(); + for (var i = 0, len = mappings.length; i < len; i++) { + mapping = mappings[i]; + next = '' + + if (mapping.generatedLine !== previousGeneratedLine) { + previousGeneratedColumn = 0; + while (mapping.generatedLine !== previousGeneratedLine) { + next += ';'; + previousGeneratedLine++; + } + } + else { + if (i > 0) { + if (!util.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])) { + continue; + } + next += ','; + } + } + + next += base64VLQ.encode(mapping.generatedColumn + - previousGeneratedColumn); + previousGeneratedColumn = mapping.generatedColumn; + + if (mapping.source != null) { + sourceIdx = this._sources.indexOf(mapping.source); + next += base64VLQ.encode(sourceIdx - previousSource); + previousSource = sourceIdx; + + // lines are stored 0-based in SourceMap spec version 3 + next += base64VLQ.encode(mapping.originalLine - 1 + - previousOriginalLine); + previousOriginalLine = mapping.originalLine - 1; + + next += base64VLQ.encode(mapping.originalColumn + - previousOriginalColumn); + previousOriginalColumn = mapping.originalColumn; + + if (mapping.name != null) { + nameIdx = this._names.indexOf(mapping.name); + next += base64VLQ.encode(nameIdx - previousName); + previousName = nameIdx; + } + } + + result += next; + } + + return result; + }; + +SourceMapGenerator.prototype._generateSourcesContent = + function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) { + return aSources.map(function (source) { + if (!this._sourcesContents) { + return null; + } + if (aSourceRoot != null) { + source = util.relative(aSourceRoot, source); + } + var key = util.toSetString(source); + return Object.prototype.hasOwnProperty.call(this._sourcesContents, key) + ? this._sourcesContents[key] + : null; + }, this); + }; + +/** + * Externalize the source map. + */ +SourceMapGenerator.prototype.toJSON = + function SourceMapGenerator_toJSON() { + var map = { + version: this._version, + sources: this._sources.toArray(), + names: this._names.toArray(), + mappings: this._serializeMappings() + }; + if (this._file != null) { + map.file = this._file; + } + if (this._sourceRoot != null) { + map.sourceRoot = this._sourceRoot; + } + if (this._sourcesContents) { + map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot); + } + + return map; + }; + +/** + * Render the source map being generated to a string. + */ +SourceMapGenerator.prototype.toString = + function SourceMapGenerator_toString() { + return JSON.stringify(this.toJSON()); + }; + +exports.SourceMapGenerator = SourceMapGenerator; + +},{"./array-set":2,"./base64-vlq":3,"./mapping-list":6,"./util":11}],10:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator; +var util = require('./util'); + +// Matches a Windows-style `\r\n` newline or a `\n` newline used by all other +// operating systems these days (capturing the result). +var REGEX_NEWLINE = /(\r?\n)/; + +// Newline character code for charCodeAt() comparisons +var NEWLINE_CODE = 10; + +// Private symbol for identifying `SourceNode`s when multiple versions of +// the source-map library are loaded. This MUST NOT CHANGE across +// versions! +var isSourceNode = "$$$isSourceNode$$$"; + +/** + * SourceNodes provide a way to abstract over interpolating/concatenating + * snippets of generated JavaScript source code while maintaining the line and + * column information associated with the original source code. + * + * @param aLine The original line number. + * @param aColumn The original column number. + * @param aSource The original source's filename. + * @param aChunks Optional. An array of strings which are snippets of + * generated JS, or other SourceNodes. + * @param aName The original identifier. + */ +function SourceNode(aLine, aColumn, aSource, aChunks, aName) { + this.children = []; + this.sourceContents = {}; + this.line = aLine == null ? null : aLine; + this.column = aColumn == null ? null : aColumn; + this.source = aSource == null ? null : aSource; + this.name = aName == null ? null : aName; + this[isSourceNode] = true; + if (aChunks != null) this.add(aChunks); +} + +/** + * Creates a SourceNode from generated code and a SourceMapConsumer. + * + * @param aGeneratedCode The generated code + * @param aSourceMapConsumer The SourceMap for the generated code + * @param aRelativePath Optional. The path that relative sources in the + * SourceMapConsumer should be relative to. + */ +SourceNode.fromStringWithSourceMap = + function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) { + // The SourceNode we want to fill with the generated code + // and the SourceMap + var node = new SourceNode(); + + // All even indices of this array are one line of the generated code, + // while all odd indices are the newlines between two adjacent lines + // (since `REGEX_NEWLINE` captures its match). + // Processed fragments are accessed by calling `shiftNextLine`. + var remainingLines = aGeneratedCode.split(REGEX_NEWLINE); + var remainingLinesIndex = 0; + var shiftNextLine = function() { + var lineContents = getNextLine(); + // The last line of a file might not have a newline. + var newLine = getNextLine() || ""; + return lineContents + newLine; + + function getNextLine() { + return remainingLinesIndex < remainingLines.length ? + remainingLines[remainingLinesIndex++] : undefined; + } + }; + + // We need to remember the position of "remainingLines" + var lastGeneratedLine = 1, lastGeneratedColumn = 0; + + // The generate SourceNodes we need a code range. + // To extract it current and last mapping is used. + // Here we store the last mapping. + var lastMapping = null; + + aSourceMapConsumer.eachMapping(function (mapping) { + if (lastMapping !== null) { + // We add the code from "lastMapping" to "mapping": + // First check if there is a new line in between. + if (lastGeneratedLine < mapping.generatedLine) { + // Associate first line with "lastMapping" + addMappingWithCode(lastMapping, shiftNextLine()); + lastGeneratedLine++; + lastGeneratedColumn = 0; + // The remaining code is added without mapping + } else { + // There is no new line in between. + // Associate the code between "lastGeneratedColumn" and + // "mapping.generatedColumn" with "lastMapping" + var nextLine = remainingLines[remainingLinesIndex] || ''; + var code = nextLine.substr(0, mapping.generatedColumn - + lastGeneratedColumn); + remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn - + lastGeneratedColumn); + lastGeneratedColumn = mapping.generatedColumn; + addMappingWithCode(lastMapping, code); + // No more remaining code, continue + lastMapping = mapping; + return; + } + } + // We add the generated code until the first mapping + // to the SourceNode without any mapping. + // Each line is added as separate string. + while (lastGeneratedLine < mapping.generatedLine) { + node.add(shiftNextLine()); + lastGeneratedLine++; + } + if (lastGeneratedColumn < mapping.generatedColumn) { + var nextLine = remainingLines[remainingLinesIndex] || ''; + node.add(nextLine.substr(0, mapping.generatedColumn)); + remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn); + lastGeneratedColumn = mapping.generatedColumn; + } + lastMapping = mapping; + }, this); + // We have processed all mappings. + if (remainingLinesIndex < remainingLines.length) { + if (lastMapping) { + // Associate the remaining code in the current line with "lastMapping" + addMappingWithCode(lastMapping, shiftNextLine()); + } + // and add the remaining lines without any mapping + node.add(remainingLines.splice(remainingLinesIndex).join("")); + } + + // Copy sourcesContent into SourceNode + aSourceMapConsumer.sources.forEach(function (sourceFile) { + var content = aSourceMapConsumer.sourceContentFor(sourceFile); + if (content != null) { + if (aRelativePath != null) { + sourceFile = util.join(aRelativePath, sourceFile); + } + node.setSourceContent(sourceFile, content); + } + }); + + return node; + + function addMappingWithCode(mapping, code) { + if (mapping === null || mapping.source === undefined) { + node.add(code); + } else { + var source = aRelativePath + ? util.join(aRelativePath, mapping.source) + : mapping.source; + node.add(new SourceNode(mapping.originalLine, + mapping.originalColumn, + source, + code, + mapping.name)); + } + } + }; + +/** + * Add a chunk of generated JS to this source node. + * + * @param aChunk A string snippet of generated JS code, another instance of + * SourceNode, or an array where each member is one of those things. + */ +SourceNode.prototype.add = function SourceNode_add(aChunk) { + if (Array.isArray(aChunk)) { + aChunk.forEach(function (chunk) { + this.add(chunk); + }, this); + } + else if (aChunk[isSourceNode] || typeof aChunk === "string") { + if (aChunk) { + this.children.push(aChunk); + } + } + else { + throw new TypeError( + "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk + ); + } + return this; +}; + +/** + * Add a chunk of generated JS to the beginning of this source node. + * + * @param aChunk A string snippet of generated JS code, another instance of + * SourceNode, or an array where each member is one of those things. + */ +SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) { + if (Array.isArray(aChunk)) { + for (var i = aChunk.length-1; i >= 0; i--) { + this.prepend(aChunk[i]); + } + } + else if (aChunk[isSourceNode] || typeof aChunk === "string") { + this.children.unshift(aChunk); + } + else { + throw new TypeError( + "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk + ); + } + return this; +}; + +/** + * Walk over the tree of JS snippets in this node and its children. The + * walking function is called once for each snippet of JS and is passed that + * snippet and the its original associated source's line/column location. + * + * @param aFn The traversal function. + */ +SourceNode.prototype.walk = function SourceNode_walk(aFn) { + var chunk; + for (var i = 0, len = this.children.length; i < len; i++) { + chunk = this.children[i]; + if (chunk[isSourceNode]) { + chunk.walk(aFn); + } + else { + if (chunk !== '') { + aFn(chunk, { source: this.source, + line: this.line, + column: this.column, + name: this.name }); + } + } + } +}; + +/** + * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between + * each of `this.children`. + * + * @param aSep The separator. + */ +SourceNode.prototype.join = function SourceNode_join(aSep) { + var newChildren; + var i; + var len = this.children.length; + if (len > 0) { + newChildren = []; + for (i = 0; i < len-1; i++) { + newChildren.push(this.children[i]); + newChildren.push(aSep); + } + newChildren.push(this.children[i]); + this.children = newChildren; + } + return this; +}; + +/** + * Call String.prototype.replace on the very right-most source snippet. Useful + * for trimming whitespace from the end of a source node, etc. + * + * @param aPattern The pattern to replace. + * @param aReplacement The thing to replace the pattern with. + */ +SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) { + var lastChild = this.children[this.children.length - 1]; + if (lastChild[isSourceNode]) { + lastChild.replaceRight(aPattern, aReplacement); + } + else if (typeof lastChild === 'string') { + this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement); + } + else { + this.children.push(''.replace(aPattern, aReplacement)); + } + return this; +}; + +/** + * Set the source content for a source file. This will be added to the SourceMapGenerator + * in the sourcesContent field. + * + * @param aSourceFile The filename of the source file + * @param aSourceContent The content of the source file + */ +SourceNode.prototype.setSourceContent = + function SourceNode_setSourceContent(aSourceFile, aSourceContent) { + this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent; + }; + +/** + * Walk over the tree of SourceNodes. The walking function is called for each + * source file content and is passed the filename and source content. + * + * @param aFn The traversal function. + */ +SourceNode.prototype.walkSourceContents = + function SourceNode_walkSourceContents(aFn) { + for (var i = 0, len = this.children.length; i < len; i++) { + if (this.children[i][isSourceNode]) { + this.children[i].walkSourceContents(aFn); + } + } + + var sources = Object.keys(this.sourceContents); + for (var i = 0, len = sources.length; i < len; i++) { + aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]); + } + }; + +/** + * Return the string representation of this source node. Walks over the tree + * and concatenates all the various snippets together to one string. + */ +SourceNode.prototype.toString = function SourceNode_toString() { + var str = ""; + this.walk(function (chunk) { + str += chunk; + }); + return str; +}; + +/** + * Returns the string representation of this source node along with a source + * map. + */ +SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) { + var generated = { + code: "", + line: 1, + column: 0 + }; + var map = new SourceMapGenerator(aArgs); + var sourceMappingActive = false; + var lastOriginalSource = null; + var lastOriginalLine = null; + var lastOriginalColumn = null; + var lastOriginalName = null; + this.walk(function (chunk, original) { + generated.code += chunk; + if (original.source !== null + && original.line !== null + && original.column !== null) { + if(lastOriginalSource !== original.source + || lastOriginalLine !== original.line + || lastOriginalColumn !== original.column + || lastOriginalName !== original.name) { + map.addMapping({ + source: original.source, + original: { + line: original.line, + column: original.column + }, + generated: { + line: generated.line, + column: generated.column + }, + name: original.name + }); + } + lastOriginalSource = original.source; + lastOriginalLine = original.line; + lastOriginalColumn = original.column; + lastOriginalName = original.name; + sourceMappingActive = true; + } else if (sourceMappingActive) { + map.addMapping({ + generated: { + line: generated.line, + column: generated.column + } + }); + lastOriginalSource = null; + sourceMappingActive = false; + } + for (var idx = 0, length = chunk.length; idx < length; idx++) { + if (chunk.charCodeAt(idx) === NEWLINE_CODE) { + generated.line++; + generated.column = 0; + // Mappings end at eol + if (idx + 1 === length) { + lastOriginalSource = null; + sourceMappingActive = false; + } else if (sourceMappingActive) { + map.addMapping({ + source: original.source, + original: { + line: original.line, + column: original.column + }, + generated: { + line: generated.line, + column: generated.column + }, + name: original.name + }); + } + } else { + generated.column++; + } + } + }); + this.walkSourceContents(function (sourceFile, sourceContent) { + map.setSourceContent(sourceFile, sourceContent); + }); + + return { code: generated.code, map: map }; +}; + +exports.SourceNode = SourceNode; + +},{"./source-map-generator":9,"./util":11}],11:[function(require,module,exports){ +/* -*- Mode: js; js-indent-level: 2; -*- */ +/* + * Copyright 2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE or: + * http://opensource.org/licenses/BSD-3-Clause + */ + +/** + * This is a helper function for getting values from parameter/options + * objects. + * + * @param args The object we are extracting values from + * @param name The name of the property we are getting. + * @param defaultValue An optional value to return if the property is missing + * from the object. If this is not specified and the property is missing, an + * error will be thrown. + */ +function getArg(aArgs, aName, aDefaultValue) { + if (aName in aArgs) { + return aArgs[aName]; + } else if (arguments.length === 3) { + return aDefaultValue; + } else { + throw new Error('"' + aName + '" is a required argument.'); + } +} +exports.getArg = getArg; + +var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/; +var dataUrlRegexp = /^data:.+\,.+$/; + +function urlParse(aUrl) { + var match = aUrl.match(urlRegexp); + if (!match) { + return null; + } + return { + scheme: match[1], + auth: match[2], + host: match[3], + port: match[4], + path: match[5] + }; +} +exports.urlParse = urlParse; + +function urlGenerate(aParsedUrl) { + var url = ''; + if (aParsedUrl.scheme) { + url += aParsedUrl.scheme + ':'; + } + url += '//'; + if (aParsedUrl.auth) { + url += aParsedUrl.auth + '@'; + } + if (aParsedUrl.host) { + url += aParsedUrl.host; + } + if (aParsedUrl.port) { + url += ":" + aParsedUrl.port + } + if (aParsedUrl.path) { + url += aParsedUrl.path; + } + return url; +} +exports.urlGenerate = urlGenerate; + +/** + * Normalizes a path, or the path portion of a URL: + * + * - Replaces consecutive slashes with one slash. + * - Removes unnecessary '.' parts. + * - Removes unnecessary '/..' parts. + * + * Based on code in the Node.js 'path' core module. + * + * @param aPath The path or url to normalize. + */ +function normalize(aPath) { + var path = aPath; + var url = urlParse(aPath); + if (url) { + if (!url.path) { + return aPath; + } + path = url.path; + } + var isAbsolute = exports.isAbsolute(path); + + var parts = path.split(/\/+/); + for (var part, up = 0, i = parts.length - 1; i >= 0; i--) { + part = parts[i]; + if (part === '.') { + parts.splice(i, 1); + } else if (part === '..') { + up++; + } else if (up > 0) { + if (part === '') { + // The first part is blank if the path is absolute. Trying to go + // above the root is a no-op. Therefore we can remove all '..' parts + // directly after the root. + parts.splice(i + 1, up); + up = 0; + } else { + parts.splice(i, 2); + up--; + } + } + } + path = parts.join('/'); + + if (path === '') { + path = isAbsolute ? '/' : '.'; + } + + if (url) { + url.path = path; + return urlGenerate(url); + } + return path; +} +exports.normalize = normalize; + +/** + * Joins two paths/URLs. + * + * @param aRoot The root path or URL. + * @param aPath The path or URL to be joined with the root. + * + * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a + * scheme-relative URL: Then the scheme of aRoot, if any, is prepended + * first. + * - Otherwise aPath is a path. If aRoot is a URL, then its path portion + * is updated with the result and aRoot is returned. Otherwise the result + * is returned. + * - If aPath is absolute, the result is aPath. + * - Otherwise the two paths are joined with a slash. + * - Joining for example 'http://' and 'www.example.com' is also supported. + */ +function join(aRoot, aPath) { + if (aRoot === "") { + aRoot = "."; + } + if (aPath === "") { + aPath = "."; + } + var aPathUrl = urlParse(aPath); + var aRootUrl = urlParse(aRoot); + if (aRootUrl) { + aRoot = aRootUrl.path || '/'; + } + + // `join(foo, '//www.example.org')` + if (aPathUrl && !aPathUrl.scheme) { + if (aRootUrl) { + aPathUrl.scheme = aRootUrl.scheme; + } + return urlGenerate(aPathUrl); + } + + if (aPathUrl || aPath.match(dataUrlRegexp)) { + return aPath; + } + + // `join('http://', 'www.example.com')` + if (aRootUrl && !aRootUrl.host && !aRootUrl.path) { + aRootUrl.host = aPath; + return urlGenerate(aRootUrl); + } + + var joined = aPath.charAt(0) === '/' + ? aPath + : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath); + + if (aRootUrl) { + aRootUrl.path = joined; + return urlGenerate(aRootUrl); + } + return joined; +} +exports.join = join; + +exports.isAbsolute = function (aPath) { + return aPath.charAt(0) === '/' || urlRegexp.test(aPath); +}; + +/** + * Make a path relative to a URL or another path. + * + * @param aRoot The root path or URL. + * @param aPath The path or URL to be made relative to aRoot. + */ +function relative(aRoot, aPath) { + if (aRoot === "") { + aRoot = "."; + } + + aRoot = aRoot.replace(/\/$/, ''); + + // It is possible for the path to be above the root. In this case, simply + // checking whether the root is a prefix of the path won't work. Instead, we + // need to remove components from the root one by one, until either we find + // a prefix that fits, or we run out of components to remove. + var level = 0; + while (aPath.indexOf(aRoot + '/') !== 0) { + var index = aRoot.lastIndexOf("/"); + if (index < 0) { + return aPath; + } + + // If the only part of the root that is left is the scheme (i.e. http://, + // file:///, etc.), one or more slashes (/), or simply nothing at all, we + // have exhausted all components, so the path is not relative to the root. + aRoot = aRoot.slice(0, index); + if (aRoot.match(/^([^\/]+:\/)?\/*$/)) { + return aPath; + } + + ++level; + } + + // Make sure we add a "../" for each component we removed from the root. + return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1); +} +exports.relative = relative; + +var supportsNullProto = (function () { + var obj = Object.create(null); + return !('__proto__' in obj); +}()); + +function identity (s) { + return s; +} + +/** + * Because behavior goes wacky when you set `__proto__` on objects, we + * have to prefix all the strings in our set with an arbitrary character. + * + * See https://github.com/mozilla/source-map/pull/31 and + * https://github.com/mozilla/source-map/issues/30 + * + * @param String aStr + */ +function toSetString(aStr) { + if (isProtoString(aStr)) { + return '$' + aStr; + } + + return aStr; +} +exports.toSetString = supportsNullProto ? identity : toSetString; + +function fromSetString(aStr) { + if (isProtoString(aStr)) { + return aStr.slice(1); + } + + return aStr; +} +exports.fromSetString = supportsNullProto ? identity : fromSetString; + +function isProtoString(s) { + if (!s) { + return false; + } + + var length = s.length; + + if (length < 9 /* "__proto__".length */) { + return false; + } + + if (s.charCodeAt(length - 1) !== 95 /* '_' */ || + s.charCodeAt(length - 2) !== 95 /* '_' */ || + s.charCodeAt(length - 3) !== 111 /* 'o' */ || + s.charCodeAt(length - 4) !== 116 /* 't' */ || + s.charCodeAt(length - 5) !== 111 /* 'o' */ || + s.charCodeAt(length - 6) !== 114 /* 'r' */ || + s.charCodeAt(length - 7) !== 112 /* 'p' */ || + s.charCodeAt(length - 8) !== 95 /* '_' */ || + s.charCodeAt(length - 9) !== 95 /* '_' */) { + return false; + } + + for (var i = length - 10; i >= 0; i--) { + if (s.charCodeAt(i) !== 36 /* '$' */) { + return false; + } + } + + return true; +} + +/** + * Comparator between two mappings where the original positions are compared. + * + * Optionally pass in `true` as `onlyCompareGenerated` to consider two + * mappings with the same original source/line/column, but different generated + * line and column the same. Useful when searching for a mapping with a + * stubbed out mapping. + */ +function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) { + var cmp = strcmp(mappingA.source, mappingB.source); + if (cmp !== 0) { + return cmp; + } + + cmp = mappingA.originalLine - mappingB.originalLine; + if (cmp !== 0) { + return cmp; + } + + cmp = mappingA.originalColumn - mappingB.originalColumn; + if (cmp !== 0 || onlyCompareOriginal) { + return cmp; + } + + cmp = mappingA.generatedColumn - mappingB.generatedColumn; + if (cmp !== 0) { + return cmp; + } + + cmp = mappingA.generatedLine - mappingB.generatedLine; + if (cmp !== 0) { + return cmp; + } + + return strcmp(mappingA.name, mappingB.name); +} +exports.compareByOriginalPositions = compareByOriginalPositions; + +/** + * Comparator between two mappings with deflated source and name indices where + * the generated positions are compared. + * + * Optionally pass in `true` as `onlyCompareGenerated` to consider two + * mappings with the same generated line and column, but different + * source/name/original line and column the same. Useful when searching for a + * mapping with a stubbed out mapping. + */ +function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) { + var cmp = mappingA.generatedLine - mappingB.generatedLine; + if (cmp !== 0) { + return cmp; + } + + cmp = mappingA.generatedColumn - mappingB.generatedColumn; + if (cmp !== 0 || onlyCompareGenerated) { + return cmp; + } + + cmp = strcmp(mappingA.source, mappingB.source); + if (cmp !== 0) { + return cmp; + } + + cmp = mappingA.originalLine - mappingB.originalLine; + if (cmp !== 0) { + return cmp; + } + + cmp = mappingA.originalColumn - mappingB.originalColumn; + if (cmp !== 0) { + return cmp; + } + + return strcmp(mappingA.name, mappingB.name); +} +exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated; + +function strcmp(aStr1, aStr2) { + if (aStr1 === aStr2) { + return 0; + } + + if (aStr1 === null) { + return 1; // aStr2 !== null + } + + if (aStr2 === null) { + return -1; // aStr1 !== null + } + + if (aStr1 > aStr2) { + return 1; + } + + return -1; +} + +/** + * Comparator between two mappings with inflated source and name strings where + * the generated positions are compared. + */ +function compareByGeneratedPositionsInflated(mappingA, mappingB) { + var cmp = mappingA.generatedLine - mappingB.generatedLine; + if (cmp !== 0) { + return cmp; + } + + cmp = mappingA.generatedColumn - mappingB.generatedColumn; + if (cmp !== 0) { + return cmp; + } + + cmp = strcmp(mappingA.source, mappingB.source); + if (cmp !== 0) { + return cmp; + } + + cmp = mappingA.originalLine - mappingB.originalLine; + if (cmp !== 0) { + return cmp; + } + + cmp = mappingA.originalColumn - mappingB.originalColumn; + if (cmp !== 0) { + return cmp; + } + + return strcmp(mappingA.name, mappingB.name); +} +exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated; + +/** + * Strip any JSON XSSI avoidance prefix from the string (as documented + * in the source maps specification), and then parse the string as + * JSON. + */ +function parseSourceMapInput(str) { + return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, '')); +} +exports.parseSourceMapInput = parseSourceMapInput; + +/** + * Compute the URL of a source given the the source root, the source's + * URL, and the source map's URL. + */ +function computeSourceURL(sourceRoot, sourceURL, sourceMapURL) { + sourceURL = sourceURL || ''; + + if (sourceRoot) { + // This follows what Chrome does. + if (sourceRoot[sourceRoot.length - 1] !== '/' && sourceURL[0] !== '/') { + sourceRoot += '/'; + } + // The spec says: + // Line 4: An optional source root, useful for relocating source + // files on a server or removing repeated values in the + // “sources” entry. This value is prepended to the individual + // entries in the “source” field. + sourceURL = sourceRoot + sourceURL; + } + + // Historically, SourceMapConsumer did not take the sourceMapURL as + // a parameter. This mode is still somewhat supported, which is why + // this code block is conditional. However, it's preferable to pass + // the source map URL to SourceMapConsumer, so that this function + // can implement the source URL resolution algorithm as outlined in + // the spec. This block is basically the equivalent of: + // new URL(sourceURL, sourceMapURL).toString() + // ... except it avoids using URL, which wasn't available in the + // older releases of node still supported by this library. + // + // The spec says: + // If the sources are not absolute URLs after prepending of the + // “sourceRoot”, the sources are resolved relative to the + // SourceMap (like resolving script src in a html document). + if (sourceMapURL) { + var parsed = urlParse(sourceMapURL); + if (!parsed) { + throw new Error("sourceMapURL could not be parsed"); + } + if (parsed.path) { + // Strip the last path component, but keep the "/". + var index = parsed.path.lastIndexOf('/'); + if (index >= 0) { + parsed.path = parsed.path.substring(0, index + 1); + } + } + sourceURL = join(urlGenerate(parsed), sourceURL); + } + + return normalize(sourceURL); +} +exports.computeSourceURL = computeSourceURL; + +},{}],12:[function(require,module,exports){ +/* + * Copyright 2009-2011 Mozilla Foundation and contributors + * Licensed under the New BSD license. See LICENSE.txt or: + * http://opensource.org/licenses/BSD-3-Clause + */ +exports.SourceMapGenerator = require('./lib/source-map-generator').SourceMapGenerator; +exports.SourceMapConsumer = require('./lib/source-map-consumer').SourceMapConsumer; +exports.SourceNode = require('./lib/source-node').SourceNode; + +},{"./lib/source-map-consumer":8,"./lib/source-map-generator":9,"./lib/source-node":10}],13:[function(require,module,exports){ +module.exports={ + "_from": "escodegen", + "_id": "escodegen@1.11.1", + "_inBundle": false, + "_integrity": "sha512-JwiqFD9KdGVVpeuRa68yU3zZnBEOcPs0nKW7wZzXky8Z7tffdYUHbe11bPCV5jYlK6DVdKLWLm0f5I/QlL0Kmw==", + "_location": "/escodegen", + "_phantomChildren": {}, + "_requested": { + "type": "tag", + "registry": true, + "raw": "escodegen", + "name": "escodegen", + "escapedName": "escodegen", + "rawSpec": "", + "saveSpec": null, + "fetchSpec": "latest" + }, + "_requiredBy": [ + "#USER", + "/" + ], + "_resolved": "https://registry.npmjs.org/escodegen/-/escodegen-1.11.1.tgz", + "_shasum": "c485ff8d6b4cdb89e27f4a856e91f118401ca510", + "_spec": "escodegen", + "_where": "/Users/kia/Codesmith/react-rewind/src/browser/chrome", + "bin": { + "esgenerate": "./bin/esgenerate.js", + "escodegen": "./bin/escodegen.js" + }, + "bugs": { + "url": "https://github.com/estools/escodegen/issues" + }, + "bundleDependencies": false, + "dependencies": { + "esprima": "^3.1.3", + "estraverse": "^4.2.0", + "esutils": "^2.0.2", + "optionator": "^0.8.1", + "source-map": "~0.6.1" + }, + "deprecated": false, + "description": "ECMAScript code generator", + "devDependencies": { + "acorn": "^4.0.4", + "bluebird": "^3.4.7", + "bower-registry-client": "^1.0.0", + "chai": "^3.5.0", + "commonjs-everywhere": "^0.9.7", + "gulp": "^3.8.10", + "gulp-eslint": "^3.0.1", + "gulp-mocha": "^3.0.1", + "semver": "^5.1.0" + }, + "engines": { + "node": ">=4.0" + }, + "files": [ + "LICENSE.BSD", + "README.md", + "bin", + "escodegen.js", + "package.json" + ], + "homepage": "http://github.com/estools/escodegen", + "license": "BSD-2-Clause", + "main": "escodegen.js", + "maintainers": [ + { + "name": "Yusuke Suzuki", + "email": "utatane.tea@gmail.com", + "url": "http://github.com/Constellation" + } + ], + "name": "escodegen", + "optionalDependencies": { + "source-map": "~0.6.1" + }, + "repository": { + "type": "git", + "url": "git+ssh://git@github.com/estools/escodegen.git" + }, + "scripts": { + "build": "cjsify -a path: tools/entry-point.js > escodegen.browser.js", + "build-min": "cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js", + "lint": "gulp lint", + "release": "node tools/release.js", + "test": "gulp travis", + "unit-test": "gulp test" + }, + "version": "1.11.1" +} + +},{}],14:[function(require,module,exports){ +(function webpackUniversalModuleDefinition(root, factory) { +/* istanbul ignore next */ + if(typeof exports === 'object' && typeof module === 'object') + module.exports = factory(); + else if(typeof define === 'function' && define.amd) + define([], factory); +/* istanbul ignore next */ + else if(typeof exports === 'object') + exports["esprima"] = factory(); + else + root["esprima"] = factory(); +})(this, function() { +return /******/ (function(modules) { // webpackBootstrap +/******/ // The module cache +/******/ var installedModules = {}; + +/******/ // The require function +/******/ function __webpack_require__(moduleId) { + +/******/ // Check if module is in cache +/* istanbul ignore if */ +/******/ if(installedModules[moduleId]) +/******/ return installedModules[moduleId].exports; + +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ exports: {}, +/******/ id: moduleId, +/******/ loaded: false +/******/ }; + +/******/ // Execute the module function +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); + +/******/ // Flag the module as loaded +/******/ module.loaded = true; + +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } + + +/******/ // expose the modules object (__webpack_modules__) +/******/ __webpack_require__.m = modules; + +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; + +/******/ // __webpack_public_path__ +/******/ __webpack_require__.p = ""; + +/******/ // Load entry module and return exports +/******/ return __webpack_require__(0); +/******/ }) +/************************************************************************/ +/******/ ([ +/* 0 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + /* + Copyright JS Foundation and other contributors, https://js.foundation/ + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + Object.defineProperty(exports, "__esModule", { value: true }); + var comment_handler_1 = __webpack_require__(1); + var jsx_parser_1 = __webpack_require__(3); + var parser_1 = __webpack_require__(8); + var tokenizer_1 = __webpack_require__(15); + function parse(code, options, delegate) { + var commentHandler = null; + var proxyDelegate = function (node, metadata) { + if (delegate) { + delegate(node, metadata); + } + if (commentHandler) { + commentHandler.visit(node, metadata); + } + }; + var parserDelegate = (typeof delegate === 'function') ? proxyDelegate : null; + var collectComment = false; + if (options) { + collectComment = (typeof options.comment === 'boolean' && options.comment); + var attachComment = (typeof options.attachComment === 'boolean' && options.attachComment); + if (collectComment || attachComment) { + commentHandler = new comment_handler_1.CommentHandler(); + commentHandler.attach = attachComment; + options.comment = true; + parserDelegate = proxyDelegate; + } + } + var isModule = false; + if (options && typeof options.sourceType === 'string') { + isModule = (options.sourceType === 'module'); + } + var parser; + if (options && typeof options.jsx === 'boolean' && options.jsx) { + parser = new jsx_parser_1.JSXParser(code, options, parserDelegate); + } + else { + parser = new parser_1.Parser(code, options, parserDelegate); + } + var program = isModule ? parser.parseModule() : parser.parseScript(); + var ast = program; + if (collectComment && commentHandler) { + ast.comments = commentHandler.comments; + } + if (parser.config.tokens) { + ast.tokens = parser.tokens; + } + if (parser.config.tolerant) { + ast.errors = parser.errorHandler.errors; + } + return ast; + } + exports.parse = parse; + function parseModule(code, options, delegate) { + var parsingOptions = options || {}; + parsingOptions.sourceType = 'module'; + return parse(code, parsingOptions, delegate); + } + exports.parseModule = parseModule; + function parseScript(code, options, delegate) { + var parsingOptions = options || {}; + parsingOptions.sourceType = 'script'; + return parse(code, parsingOptions, delegate); + } + exports.parseScript = parseScript; + function tokenize(code, options, delegate) { + var tokenizer = new tokenizer_1.Tokenizer(code, options); + var tokens; + tokens = []; + try { + while (true) { + var token = tokenizer.getNextToken(); + if (!token) { + break; + } + if (delegate) { + token = delegate(token); + } + tokens.push(token); + } + } + catch (e) { + tokenizer.errorHandler.tolerate(e); + } + if (tokenizer.errorHandler.tolerant) { + tokens.errors = tokenizer.errors(); + } + return tokens; + } + exports.tokenize = tokenize; + var syntax_1 = __webpack_require__(2); + exports.Syntax = syntax_1.Syntax; + // Sync with *.json manifests. + exports.version = '4.0.1'; + + +/***/ }, +/* 1 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var syntax_1 = __webpack_require__(2); + var CommentHandler = (function () { + function CommentHandler() { + this.attach = false; + this.comments = []; + this.stack = []; + this.leading = []; + this.trailing = []; + } + CommentHandler.prototype.insertInnerComments = function (node, metadata) { + // innnerComments for properties empty block + // `function a() {/** comments **\/}` + if (node.type === syntax_1.Syntax.BlockStatement && node.body.length === 0) { + var innerComments = []; + for (var i = this.leading.length - 1; i >= 0; --i) { + var entry = this.leading[i]; + if (metadata.end.offset >= entry.start) { + innerComments.unshift(entry.comment); + this.leading.splice(i, 1); + this.trailing.splice(i, 1); + } + } + if (innerComments.length) { + node.innerComments = innerComments; + } + } + }; + CommentHandler.prototype.findTrailingComments = function (metadata) { + var trailingComments = []; + if (this.trailing.length > 0) { + for (var i = this.trailing.length - 1; i >= 0; --i) { + var entry_1 = this.trailing[i]; + if (entry_1.start >= metadata.end.offset) { + trailingComments.unshift(entry_1.comment); + } + } + this.trailing.length = 0; + return trailingComments; + } + var entry = this.stack[this.stack.length - 1]; + if (entry && entry.node.trailingComments) { + var firstComment = entry.node.trailingComments[0]; + if (firstComment && firstComment.range[0] >= metadata.end.offset) { + trailingComments = entry.node.trailingComments; + delete entry.node.trailingComments; + } + } + return trailingComments; + }; + CommentHandler.prototype.findLeadingComments = function (metadata) { + var leadingComments = []; + var target; + while (this.stack.length > 0) { + var entry = this.stack[this.stack.length - 1]; + if (entry && entry.start >= metadata.start.offset) { + target = entry.node; + this.stack.pop(); + } + else { + break; + } + } + if (target) { + var count = target.leadingComments ? target.leadingComments.length : 0; + for (var i = count - 1; i >= 0; --i) { + var comment = target.leadingComments[i]; + if (comment.range[1] <= metadata.start.offset) { + leadingComments.unshift(comment); + target.leadingComments.splice(i, 1); + } + } + if (target.leadingComments && target.leadingComments.length === 0) { + delete target.leadingComments; + } + return leadingComments; + } + for (var i = this.leading.length - 1; i >= 0; --i) { + var entry = this.leading[i]; + if (entry.start <= metadata.start.offset) { + leadingComments.unshift(entry.comment); + this.leading.splice(i, 1); + } + } + return leadingComments; + }; + CommentHandler.prototype.visitNode = function (node, metadata) { + if (node.type === syntax_1.Syntax.Program && node.body.length > 0) { + return; + } + this.insertInnerComments(node, metadata); + var trailingComments = this.findTrailingComments(metadata); + var leadingComments = this.findLeadingComments(metadata); + if (leadingComments.length > 0) { + node.leadingComments = leadingComments; + } + if (trailingComments.length > 0) { + node.trailingComments = trailingComments; + } + this.stack.push({ + node: node, + start: metadata.start.offset + }); + }; + CommentHandler.prototype.visitComment = function (node, metadata) { + var type = (node.type[0] === 'L') ? 'Line' : 'Block'; + var comment = { + type: type, + value: node.value + }; + if (node.range) { + comment.range = node.range; + } + if (node.loc) { + comment.loc = node.loc; + } + this.comments.push(comment); + if (this.attach) { + var entry = { + comment: { + type: type, + value: node.value, + range: [metadata.start.offset, metadata.end.offset] + }, + start: metadata.start.offset + }; + if (node.loc) { + entry.comment.loc = node.loc; + } + node.type = type; + this.leading.push(entry); + this.trailing.push(entry); + } + }; + CommentHandler.prototype.visit = function (node, metadata) { + if (node.type === 'LineComment') { + this.visitComment(node, metadata); + } + else if (node.type === 'BlockComment') { + this.visitComment(node, metadata); + } + else if (this.attach) { + this.visitNode(node, metadata); + } + }; + return CommentHandler; + }()); + exports.CommentHandler = CommentHandler; + + +/***/ }, +/* 2 */ +/***/ function(module, exports) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + exports.Syntax = { + AssignmentExpression: 'AssignmentExpression', + AssignmentPattern: 'AssignmentPattern', + ArrayExpression: 'ArrayExpression', + ArrayPattern: 'ArrayPattern', + ArrowFunctionExpression: 'ArrowFunctionExpression', + AwaitExpression: 'AwaitExpression', + BlockStatement: 'BlockStatement', + BinaryExpression: 'BinaryExpression', + BreakStatement: 'BreakStatement', + CallExpression: 'CallExpression', + CatchClause: 'CatchClause', + ClassBody: 'ClassBody', + ClassDeclaration: 'ClassDeclaration', + ClassExpression: 'ClassExpression', + ConditionalExpression: 'ConditionalExpression', + ContinueStatement: 'ContinueStatement', + DoWhileStatement: 'DoWhileStatement', + DebuggerStatement: 'DebuggerStatement', + EmptyStatement: 'EmptyStatement', + ExportAllDeclaration: 'ExportAllDeclaration', + ExportDefaultDeclaration: 'ExportDefaultDeclaration', + ExportNamedDeclaration: 'ExportNamedDeclaration', + ExportSpecifier: 'ExportSpecifier', + ExpressionStatement: 'ExpressionStatement', + ForStatement: 'ForStatement', + ForOfStatement: 'ForOfStatement', + ForInStatement: 'ForInStatement', + FunctionDeclaration: 'FunctionDeclaration', + FunctionExpression: 'FunctionExpression', + Identifier: 'Identifier', + IfStatement: 'IfStatement', + ImportDeclaration: 'ImportDeclaration', + ImportDefaultSpecifier: 'ImportDefaultSpecifier', + ImportNamespaceSpecifier: 'ImportNamespaceSpecifier', + ImportSpecifier: 'ImportSpecifier', + Literal: 'Literal', + LabeledStatement: 'LabeledStatement', + LogicalExpression: 'LogicalExpression', + MemberExpression: 'MemberExpression', + MetaProperty: 'MetaProperty', + MethodDefinition: 'MethodDefinition', + NewExpression: 'NewExpression', + ObjectExpression: 'ObjectExpression', + ObjectPattern: 'ObjectPattern', + Program: 'Program', + Property: 'Property', + RestElement: 'RestElement', + ReturnStatement: 'ReturnStatement', + SequenceExpression: 'SequenceExpression', + SpreadElement: 'SpreadElement', + Super: 'Super', + SwitchCase: 'SwitchCase', + SwitchStatement: 'SwitchStatement', + TaggedTemplateExpression: 'TaggedTemplateExpression', + TemplateElement: 'TemplateElement', + TemplateLiteral: 'TemplateLiteral', + ThisExpression: 'ThisExpression', + ThrowStatement: 'ThrowStatement', + TryStatement: 'TryStatement', + UnaryExpression: 'UnaryExpression', + UpdateExpression: 'UpdateExpression', + VariableDeclaration: 'VariableDeclaration', + VariableDeclarator: 'VariableDeclarator', + WhileStatement: 'WhileStatement', + WithStatement: 'WithStatement', + YieldExpression: 'YieldExpression' + }; + + +/***/ }, +/* 3 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; +/* istanbul ignore next */ + var __extends = (this && this.__extends) || (function () { + var extendStatics = Object.setPrototypeOf || + ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || + function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; }; + return function (d, b) { + extendStatics(d, b); + function __() { this.constructor = d; } + d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); + }; + })(); + Object.defineProperty(exports, "__esModule", { value: true }); + var character_1 = __webpack_require__(4); + var JSXNode = __webpack_require__(5); + var jsx_syntax_1 = __webpack_require__(6); + var Node = __webpack_require__(7); + var parser_1 = __webpack_require__(8); + var token_1 = __webpack_require__(13); + var xhtml_entities_1 = __webpack_require__(14); + token_1.TokenName[100 /* Identifier */] = 'JSXIdentifier'; + token_1.TokenName[101 /* Text */] = 'JSXText'; + // Fully qualified element name, e.g. returns "svg:path" + function getQualifiedElementName(elementName) { + var qualifiedName; + switch (elementName.type) { + case jsx_syntax_1.JSXSyntax.JSXIdentifier: + var id = elementName; + qualifiedName = id.name; + break; + case jsx_syntax_1.JSXSyntax.JSXNamespacedName: + var ns = elementName; + qualifiedName = getQualifiedElementName(ns.namespace) + ':' + + getQualifiedElementName(ns.name); + break; + case jsx_syntax_1.JSXSyntax.JSXMemberExpression: + var expr = elementName; + qualifiedName = getQualifiedElementName(expr.object) + '.' + + getQualifiedElementName(expr.property); + break; + /* istanbul ignore next */ + default: + break; + } + return qualifiedName; + } + var JSXParser = (function (_super) { + __extends(JSXParser, _super); + function JSXParser(code, options, delegate) { + return _super.call(this, code, options, delegate) || this; + } + JSXParser.prototype.parsePrimaryExpression = function () { + return this.match('<') ? this.parseJSXRoot() : _super.prototype.parsePrimaryExpression.call(this); + }; + JSXParser.prototype.startJSX = function () { + // Unwind the scanner before the lookahead token. + this.scanner.index = this.startMarker.index; + this.scanner.lineNumber = this.startMarker.line; + this.scanner.lineStart = this.startMarker.index - this.startMarker.column; + }; + JSXParser.prototype.finishJSX = function () { + // Prime the next lookahead. + this.nextToken(); + }; + JSXParser.prototype.reenterJSX = function () { + this.startJSX(); + this.expectJSX('}'); + // Pop the closing '}' added from the lookahead. + if (this.config.tokens) { + this.tokens.pop(); + } + }; + JSXParser.prototype.createJSXNode = function () { + this.collectComments(); + return { + index: this.scanner.index, + line: this.scanner.lineNumber, + column: this.scanner.index - this.scanner.lineStart + }; + }; + JSXParser.prototype.createJSXChildNode = function () { + return { + index: this.scanner.index, + line: this.scanner.lineNumber, + column: this.scanner.index - this.scanner.lineStart + }; + }; + JSXParser.prototype.scanXHTMLEntity = function (quote) { + var result = '&'; + var valid = true; + var terminated = false; + var numeric = false; + var hex = false; + while (!this.scanner.eof() && valid && !terminated) { + var ch = this.scanner.source[this.scanner.index]; + if (ch === quote) { + break; + } + terminated = (ch === ';'); + result += ch; + ++this.scanner.index; + if (!terminated) { + switch (result.length) { + case 2: + // e.g. '{' + numeric = (ch === '#'); + break; + case 3: + if (numeric) { + // e.g. 'A' + hex = (ch === 'x'); + valid = hex || character_1.Character.isDecimalDigit(ch.charCodeAt(0)); + numeric = numeric && !hex; + } + break; + default: + valid = valid && !(numeric && !character_1.Character.isDecimalDigit(ch.charCodeAt(0))); + valid = valid && !(hex && !character_1.Character.isHexDigit(ch.charCodeAt(0))); + break; + } + } + } + if (valid && terminated && result.length > 2) { + // e.g. 'A' becomes just '#x41' + var str = result.substr(1, result.length - 2); + if (numeric && str.length > 1) { + result = String.fromCharCode(parseInt(str.substr(1), 10)); + } + else if (hex && str.length > 2) { + result = String.fromCharCode(parseInt('0' + str.substr(1), 16)); + } + else if (!numeric && !hex && xhtml_entities_1.XHTMLEntities[str]) { + result = xhtml_entities_1.XHTMLEntities[str]; + } + } + return result; + }; + // Scan the next JSX token. This replaces Scanner#lex when in JSX mode. + JSXParser.prototype.lexJSX = function () { + var cp = this.scanner.source.charCodeAt(this.scanner.index); + // < > / : = { } + if (cp === 60 || cp === 62 || cp === 47 || cp === 58 || cp === 61 || cp === 123 || cp === 125) { + var value = this.scanner.source[this.scanner.index++]; + return { + type: 7 /* Punctuator */, + value: value, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: this.scanner.index - 1, + end: this.scanner.index + }; + } + // " ' + if (cp === 34 || cp === 39) { + var start = this.scanner.index; + var quote = this.scanner.source[this.scanner.index++]; + var str = ''; + while (!this.scanner.eof()) { + var ch = this.scanner.source[this.scanner.index++]; + if (ch === quote) { + break; + } + else if (ch === '&') { + str += this.scanXHTMLEntity(quote); + } + else { + str += ch; + } + } + return { + type: 8 /* StringLiteral */, + value: str, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + } + // ... or . + if (cp === 46) { + var n1 = this.scanner.source.charCodeAt(this.scanner.index + 1); + var n2 = this.scanner.source.charCodeAt(this.scanner.index + 2); + var value = (n1 === 46 && n2 === 46) ? '...' : '.'; + var start = this.scanner.index; + this.scanner.index += value.length; + return { + type: 7 /* Punctuator */, + value: value, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + } + // ` + if (cp === 96) { + // Only placeholder, since it will be rescanned as a real assignment expression. + return { + type: 10 /* Template */, + value: '', + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: this.scanner.index, + end: this.scanner.index + }; + } + // Identifer can not contain backslash (char code 92). + if (character_1.Character.isIdentifierStart(cp) && (cp !== 92)) { + var start = this.scanner.index; + ++this.scanner.index; + while (!this.scanner.eof()) { + var ch = this.scanner.source.charCodeAt(this.scanner.index); + if (character_1.Character.isIdentifierPart(ch) && (ch !== 92)) { + ++this.scanner.index; + } + else if (ch === 45) { + // Hyphen (char code 45) can be part of an identifier. + ++this.scanner.index; + } + else { + break; + } + } + var id = this.scanner.source.slice(start, this.scanner.index); + return { + type: 100 /* Identifier */, + value: id, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + } + return this.scanner.lex(); + }; + JSXParser.prototype.nextJSXToken = function () { + this.collectComments(); + this.startMarker.index = this.scanner.index; + this.startMarker.line = this.scanner.lineNumber; + this.startMarker.column = this.scanner.index - this.scanner.lineStart; + var token = this.lexJSX(); + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + if (this.config.tokens) { + this.tokens.push(this.convertToken(token)); + } + return token; + }; + JSXParser.prototype.nextJSXText = function () { + this.startMarker.index = this.scanner.index; + this.startMarker.line = this.scanner.lineNumber; + this.startMarker.column = this.scanner.index - this.scanner.lineStart; + var start = this.scanner.index; + var text = ''; + while (!this.scanner.eof()) { + var ch = this.scanner.source[this.scanner.index]; + if (ch === '{' || ch === '<') { + break; + } + ++this.scanner.index; + text += ch; + if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) { + ++this.scanner.lineNumber; + if (ch === '\r' && this.scanner.source[this.scanner.index] === '\n') { + ++this.scanner.index; + } + this.scanner.lineStart = this.scanner.index; + } + } + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + var token = { + type: 101 /* Text */, + value: text, + lineNumber: this.scanner.lineNumber, + lineStart: this.scanner.lineStart, + start: start, + end: this.scanner.index + }; + if ((text.length > 0) && this.config.tokens) { + this.tokens.push(this.convertToken(token)); + } + return token; + }; + JSXParser.prototype.peekJSXToken = function () { + var state = this.scanner.saveState(); + this.scanner.scanComments(); + var next = this.lexJSX(); + this.scanner.restoreState(state); + return next; + }; + // Expect the next JSX token to match the specified punctuator. + // If not, an exception will be thrown. + JSXParser.prototype.expectJSX = function (value) { + var token = this.nextJSXToken(); + if (token.type !== 7 /* Punctuator */ || token.value !== value) { + this.throwUnexpectedToken(token); + } + }; + // Return true if the next JSX token matches the specified punctuator. + JSXParser.prototype.matchJSX = function (value) { + var next = this.peekJSXToken(); + return next.type === 7 /* Punctuator */ && next.value === value; + }; + JSXParser.prototype.parseJSXIdentifier = function () { + var node = this.createJSXNode(); + var token = this.nextJSXToken(); + if (token.type !== 100 /* Identifier */) { + this.throwUnexpectedToken(token); + } + return this.finalize(node, new JSXNode.JSXIdentifier(token.value)); + }; + JSXParser.prototype.parseJSXElementName = function () { + var node = this.createJSXNode(); + var elementName = this.parseJSXIdentifier(); + if (this.matchJSX(':')) { + var namespace = elementName; + this.expectJSX(':'); + var name_1 = this.parseJSXIdentifier(); + elementName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_1)); + } + else if (this.matchJSX('.')) { + while (this.matchJSX('.')) { + var object = elementName; + this.expectJSX('.'); + var property = this.parseJSXIdentifier(); + elementName = this.finalize(node, new JSXNode.JSXMemberExpression(object, property)); + } + } + return elementName; + }; + JSXParser.prototype.parseJSXAttributeName = function () { + var node = this.createJSXNode(); + var attributeName; + var identifier = this.parseJSXIdentifier(); + if (this.matchJSX(':')) { + var namespace = identifier; + this.expectJSX(':'); + var name_2 = this.parseJSXIdentifier(); + attributeName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_2)); + } + else { + attributeName = identifier; + } + return attributeName; + }; + JSXParser.prototype.parseJSXStringLiteralAttribute = function () { + var node = this.createJSXNode(); + var token = this.nextJSXToken(); + if (token.type !== 8 /* StringLiteral */) { + this.throwUnexpectedToken(token); + } + var raw = this.getTokenRaw(token); + return this.finalize(node, new Node.Literal(token.value, raw)); + }; + JSXParser.prototype.parseJSXExpressionAttribute = function () { + var node = this.createJSXNode(); + this.expectJSX('{'); + this.finishJSX(); + if (this.match('}')) { + this.tolerateError('JSX attributes must only be assigned a non-empty expression'); + } + var expression = this.parseAssignmentExpression(); + this.reenterJSX(); + return this.finalize(node, new JSXNode.JSXExpressionContainer(expression)); + }; + JSXParser.prototype.parseJSXAttributeValue = function () { + return this.matchJSX('{') ? this.parseJSXExpressionAttribute() : + this.matchJSX('<') ? this.parseJSXElement() : this.parseJSXStringLiteralAttribute(); + }; + JSXParser.prototype.parseJSXNameValueAttribute = function () { + var node = this.createJSXNode(); + var name = this.parseJSXAttributeName(); + var value = null; + if (this.matchJSX('=')) { + this.expectJSX('='); + value = this.parseJSXAttributeValue(); + } + return this.finalize(node, new JSXNode.JSXAttribute(name, value)); + }; + JSXParser.prototype.parseJSXSpreadAttribute = function () { + var node = this.createJSXNode(); + this.expectJSX('{'); + this.expectJSX('...'); + this.finishJSX(); + var argument = this.parseAssignmentExpression(); + this.reenterJSX(); + return this.finalize(node, new JSXNode.JSXSpreadAttribute(argument)); + }; + JSXParser.prototype.parseJSXAttributes = function () { + var attributes = []; + while (!this.matchJSX('/') && !this.matchJSX('>')) { + var attribute = this.matchJSX('{') ? this.parseJSXSpreadAttribute() : + this.parseJSXNameValueAttribute(); + attributes.push(attribute); + } + return attributes; + }; + JSXParser.prototype.parseJSXOpeningElement = function () { + var node = this.createJSXNode(); + this.expectJSX('<'); + var name = this.parseJSXElementName(); + var attributes = this.parseJSXAttributes(); + var selfClosing = this.matchJSX('/'); + if (selfClosing) { + this.expectJSX('/'); + } + this.expectJSX('>'); + return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes)); + }; + JSXParser.prototype.parseJSXBoundaryElement = function () { + var node = this.createJSXNode(); + this.expectJSX('<'); + if (this.matchJSX('/')) { + this.expectJSX('/'); + var name_3 = this.parseJSXElementName(); + this.expectJSX('>'); + return this.finalize(node, new JSXNode.JSXClosingElement(name_3)); + } + var name = this.parseJSXElementName(); + var attributes = this.parseJSXAttributes(); + var selfClosing = this.matchJSX('/'); + if (selfClosing) { + this.expectJSX('/'); + } + this.expectJSX('>'); + return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes)); + }; + JSXParser.prototype.parseJSXEmptyExpression = function () { + var node = this.createJSXChildNode(); + this.collectComments(); + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + return this.finalize(node, new JSXNode.JSXEmptyExpression()); + }; + JSXParser.prototype.parseJSXExpressionContainer = function () { + var node = this.createJSXNode(); + this.expectJSX('{'); + var expression; + if (this.matchJSX('}')) { + expression = this.parseJSXEmptyExpression(); + this.expectJSX('}'); + } + else { + this.finishJSX(); + expression = this.parseAssignmentExpression(); + this.reenterJSX(); + } + return this.finalize(node, new JSXNode.JSXExpressionContainer(expression)); + }; + JSXParser.prototype.parseJSXChildren = function () { + var children = []; + while (!this.scanner.eof()) { + var node = this.createJSXChildNode(); + var token = this.nextJSXText(); + if (token.start < token.end) { + var raw = this.getTokenRaw(token); + var child = this.finalize(node, new JSXNode.JSXText(token.value, raw)); + children.push(child); + } + if (this.scanner.source[this.scanner.index] === '{') { + var container = this.parseJSXExpressionContainer(); + children.push(container); + } + else { + break; + } + } + return children; + }; + JSXParser.prototype.parseComplexJSXElement = function (el) { + var stack = []; + while (!this.scanner.eof()) { + el.children = el.children.concat(this.parseJSXChildren()); + var node = this.createJSXChildNode(); + var element = this.parseJSXBoundaryElement(); + if (element.type === jsx_syntax_1.JSXSyntax.JSXOpeningElement) { + var opening = element; + if (opening.selfClosing) { + var child = this.finalize(node, new JSXNode.JSXElement(opening, [], null)); + el.children.push(child); + } + else { + stack.push(el); + el = { node: node, opening: opening, closing: null, children: [] }; + } + } + if (element.type === jsx_syntax_1.JSXSyntax.JSXClosingElement) { + el.closing = element; + var open_1 = getQualifiedElementName(el.opening.name); + var close_1 = getQualifiedElementName(el.closing.name); + if (open_1 !== close_1) { + this.tolerateError('Expected corresponding JSX closing tag for %0', open_1); + } + if (stack.length > 0) { + var child = this.finalize(el.node, new JSXNode.JSXElement(el.opening, el.children, el.closing)); + el = stack[stack.length - 1]; + el.children.push(child); + stack.pop(); + } + else { + break; + } + } + } + return el; + }; + JSXParser.prototype.parseJSXElement = function () { + var node = this.createJSXNode(); + var opening = this.parseJSXOpeningElement(); + var children = []; + var closing = null; + if (!opening.selfClosing) { + var el = this.parseComplexJSXElement({ node: node, opening: opening, closing: closing, children: children }); + children = el.children; + closing = el.closing; + } + return this.finalize(node, new JSXNode.JSXElement(opening, children, closing)); + }; + JSXParser.prototype.parseJSXRoot = function () { + // Pop the opening '<' added from the lookahead. + if (this.config.tokens) { + this.tokens.pop(); + } + this.startJSX(); + var element = this.parseJSXElement(); + this.finishJSX(); + return element; + }; + JSXParser.prototype.isStartOfExpression = function () { + return _super.prototype.isStartOfExpression.call(this) || this.match('<'); + }; + return JSXParser; + }(parser_1.Parser)); + exports.JSXParser = JSXParser; + + +/***/ }, +/* 4 */ +/***/ function(module, exports) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + // See also tools/generate-unicode-regex.js. + var Regex = { + // Unicode v8.0.0 NonAsciiIdentifierStart: + NonAsciiIdentifierStart: /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B4\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0AF9\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58-\u0C5A\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D5F-\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2118-\u211D\u2124\u2126\u2128\u212A-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309B-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FD5\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AD\uA7B0-\uA7B7\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA8FD\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDE80-\uDE9C\uDEA0-\uDED0\uDF00-\uDF1F\uDF30-\uDF4A\uDF50-\uDF75\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00\uDE10-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE4\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|\uD804[\uDC03-\uDC37\uDC83-\uDCAF\uDCD0-\uDCE8\uDD03-\uDD26\uDD50-\uDD72\uDD76\uDD83-\uDDB2\uDDC1-\uDDC4\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE2B\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEDE\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3D\uDF50\uDF5D-\uDF61]|\uD805[\uDC80-\uDCAF\uDCC4\uDCC5\uDCC7\uDD80-\uDDAE\uDDD8-\uDDDB\uDE00-\uDE2F\uDE44\uDE80-\uDEAA\uDF00-\uDF19]|\uD806[\uDCA0-\uDCDF\uDCFF\uDEC0-\uDEF8]|\uD808[\uDC00-\uDF99]|\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD840-\uD868\uD86A-\uD86C\uD86F-\uD872][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDED0-\uDEED\uDF00-\uDF2F\uDF40-\uDF43\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50\uDF93-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB]|\uD83A[\uDC00-\uDCC4]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1]|\uD87E[\uDC00-\uDE1D]/, + // Unicode v8.0.0 NonAsciiIdentifierPart: + NonAsciiIdentifierPart: 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+ }; + exports.Character = { + /* tslint:disable:no-bitwise */ + fromCodePoint: function (cp) { + return (cp < 0x10000) ? String.fromCharCode(cp) : + String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) + + String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023)); + }, + // https://tc39.github.io/ecma262/#sec-white-space + isWhiteSpace: function (cp) { + return (cp === 0x20) || (cp === 0x09) || (cp === 0x0B) || (cp === 0x0C) || (cp === 0xA0) || + (cp >= 0x1680 && [0x1680, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(cp) >= 0); + }, + // https://tc39.github.io/ecma262/#sec-line-terminators + isLineTerminator: function (cp) { + return (cp === 0x0A) || (cp === 0x0D) || (cp === 0x2028) || (cp === 0x2029); + }, + // https://tc39.github.io/ecma262/#sec-names-and-keywords + isIdentifierStart: function (cp) { + return (cp === 0x24) || (cp === 0x5F) || + (cp >= 0x41 && cp <= 0x5A) || + (cp >= 0x61 && cp <= 0x7A) || + (cp === 0x5C) || + ((cp >= 0x80) && Regex.NonAsciiIdentifierStart.test(exports.Character.fromCodePoint(cp))); + }, + isIdentifierPart: function (cp) { + return (cp === 0x24) || (cp === 0x5F) || + (cp >= 0x41 && cp <= 0x5A) || + (cp >= 0x61 && cp <= 0x7A) || + (cp >= 0x30 && cp <= 0x39) || + (cp === 0x5C) || + ((cp >= 0x80) && Regex.NonAsciiIdentifierPart.test(exports.Character.fromCodePoint(cp))); + }, + // https://tc39.github.io/ecma262/#sec-literals-numeric-literals + isDecimalDigit: function (cp) { + return (cp >= 0x30 && cp <= 0x39); // 0..9 + }, + isHexDigit: function (cp) { + return (cp >= 0x30 && cp <= 0x39) || + (cp >= 0x41 && cp <= 0x46) || + (cp >= 0x61 && cp <= 0x66); // a..f + }, + isOctalDigit: function (cp) { + return (cp >= 0x30 && cp <= 0x37); // 0..7 + } + }; + + +/***/ }, +/* 5 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var jsx_syntax_1 = __webpack_require__(6); + /* tslint:disable:max-classes-per-file */ + var JSXClosingElement = (function () { + function JSXClosingElement(name) { + this.type = jsx_syntax_1.JSXSyntax.JSXClosingElement; + this.name = name; + } + return JSXClosingElement; + }()); + exports.JSXClosingElement = JSXClosingElement; + var JSXElement = (function () { + function JSXElement(openingElement, children, closingElement) { + this.type = jsx_syntax_1.JSXSyntax.JSXElement; + this.openingElement = openingElement; + this.children = children; + this.closingElement = closingElement; + } + return JSXElement; + }()); + exports.JSXElement = JSXElement; + var JSXEmptyExpression = (function () { + function JSXEmptyExpression() { + this.type = jsx_syntax_1.JSXSyntax.JSXEmptyExpression; + } + return JSXEmptyExpression; + }()); + exports.JSXEmptyExpression = JSXEmptyExpression; + var JSXExpressionContainer = (function () { + function JSXExpressionContainer(expression) { + this.type = jsx_syntax_1.JSXSyntax.JSXExpressionContainer; + this.expression = expression; + } + return JSXExpressionContainer; + }()); + exports.JSXExpressionContainer = JSXExpressionContainer; + var JSXIdentifier = (function () { + function JSXIdentifier(name) { + this.type = jsx_syntax_1.JSXSyntax.JSXIdentifier; + this.name = name; + } + return JSXIdentifier; + }()); + exports.JSXIdentifier = JSXIdentifier; + var JSXMemberExpression = (function () { + function JSXMemberExpression(object, property) { + this.type = jsx_syntax_1.JSXSyntax.JSXMemberExpression; + this.object = object; + this.property = property; + } + return JSXMemberExpression; + }()); + exports.JSXMemberExpression = JSXMemberExpression; + var JSXAttribute = (function () { + function JSXAttribute(name, value) { + this.type = jsx_syntax_1.JSXSyntax.JSXAttribute; + this.name = name; + this.value = value; + } + return JSXAttribute; + }()); + exports.JSXAttribute = JSXAttribute; + var JSXNamespacedName = (function () { + function JSXNamespacedName(namespace, name) { + this.type = jsx_syntax_1.JSXSyntax.JSXNamespacedName; + this.namespace = namespace; + this.name = name; + } + return JSXNamespacedName; + }()); + exports.JSXNamespacedName = JSXNamespacedName; + var JSXOpeningElement = (function () { + function JSXOpeningElement(name, selfClosing, attributes) { + this.type = jsx_syntax_1.JSXSyntax.JSXOpeningElement; + this.name = name; + this.selfClosing = selfClosing; + this.attributes = attributes; + } + return JSXOpeningElement; + }()); + exports.JSXOpeningElement = JSXOpeningElement; + var JSXSpreadAttribute = (function () { + function JSXSpreadAttribute(argument) { + this.type = jsx_syntax_1.JSXSyntax.JSXSpreadAttribute; + this.argument = argument; + } + return JSXSpreadAttribute; + }()); + exports.JSXSpreadAttribute = JSXSpreadAttribute; + var JSXText = (function () { + function JSXText(value, raw) { + this.type = jsx_syntax_1.JSXSyntax.JSXText; + this.value = value; + this.raw = raw; + } + return JSXText; + }()); + exports.JSXText = JSXText; + + +/***/ }, +/* 6 */ +/***/ function(module, exports) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + exports.JSXSyntax = { + JSXAttribute: 'JSXAttribute', + JSXClosingElement: 'JSXClosingElement', + JSXElement: 'JSXElement', + JSXEmptyExpression: 'JSXEmptyExpression', + JSXExpressionContainer: 'JSXExpressionContainer', + JSXIdentifier: 'JSXIdentifier', + JSXMemberExpression: 'JSXMemberExpression', + JSXNamespacedName: 'JSXNamespacedName', + JSXOpeningElement: 'JSXOpeningElement', + JSXSpreadAttribute: 'JSXSpreadAttribute', + JSXText: 'JSXText' + }; + + +/***/ }, +/* 7 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var syntax_1 = __webpack_require__(2); + /* tslint:disable:max-classes-per-file */ + var ArrayExpression = (function () { + function ArrayExpression(elements) { + this.type = syntax_1.Syntax.ArrayExpression; + this.elements = elements; + } + return ArrayExpression; + }()); + exports.ArrayExpression = ArrayExpression; + var ArrayPattern = (function () { + function ArrayPattern(elements) { + this.type = syntax_1.Syntax.ArrayPattern; + this.elements = elements; + } + return ArrayPattern; + }()); + exports.ArrayPattern = ArrayPattern; + var ArrowFunctionExpression = (function () { + function ArrowFunctionExpression(params, body, expression) { + this.type = syntax_1.Syntax.ArrowFunctionExpression; + this.id = null; + this.params = params; + this.body = body; + this.generator = false; + this.expression = expression; + this.async = false; + } + return ArrowFunctionExpression; + }()); + exports.ArrowFunctionExpression = ArrowFunctionExpression; + var AssignmentExpression = (function () { + function AssignmentExpression(operator, left, right) { + this.type = syntax_1.Syntax.AssignmentExpression; + this.operator = operator; + this.left = left; + this.right = right; + } + return AssignmentExpression; + }()); + exports.AssignmentExpression = AssignmentExpression; + var AssignmentPattern = (function () { + function AssignmentPattern(left, right) { + this.type = syntax_1.Syntax.AssignmentPattern; + this.left = left; + this.right = right; + } + return AssignmentPattern; + }()); + exports.AssignmentPattern = AssignmentPattern; + var AsyncArrowFunctionExpression = (function () { + function AsyncArrowFunctionExpression(params, body, expression) { + this.type = syntax_1.Syntax.ArrowFunctionExpression; + this.id = null; + this.params = params; + this.body = body; + this.generator = false; + this.expression = expression; + this.async = true; + } + return AsyncArrowFunctionExpression; + }()); + exports.AsyncArrowFunctionExpression = AsyncArrowFunctionExpression; + var AsyncFunctionDeclaration = (function () { + function AsyncFunctionDeclaration(id, params, body) { + this.type = syntax_1.Syntax.FunctionDeclaration; + this.id = id; + this.params = params; + this.body = body; + this.generator = false; + this.expression = false; + this.async = true; + } + return AsyncFunctionDeclaration; + }()); + exports.AsyncFunctionDeclaration = AsyncFunctionDeclaration; + var AsyncFunctionExpression = (function () { + function AsyncFunctionExpression(id, params, body) { + this.type = syntax_1.Syntax.FunctionExpression; + this.id = id; + this.params = params; + this.body = body; + this.generator = false; + this.expression = false; + this.async = true; + } + return AsyncFunctionExpression; + }()); + exports.AsyncFunctionExpression = AsyncFunctionExpression; + var AwaitExpression = (function () { + function AwaitExpression(argument) { + this.type = syntax_1.Syntax.AwaitExpression; + this.argument = argument; + } + return AwaitExpression; + }()); + exports.AwaitExpression = AwaitExpression; + var BinaryExpression = (function () { + function BinaryExpression(operator, left, right) { + var logical = (operator === '||' || operator === '&&'); + this.type = logical ? syntax_1.Syntax.LogicalExpression : syntax_1.Syntax.BinaryExpression; + this.operator = operator; + this.left = left; + this.right = right; + } + return BinaryExpression; + }()); + exports.BinaryExpression = BinaryExpression; + var BlockStatement = (function () { + function BlockStatement(body) { + this.type = syntax_1.Syntax.BlockStatement; + this.body = body; + } + return BlockStatement; + }()); + exports.BlockStatement = BlockStatement; + var BreakStatement = (function () { + function BreakStatement(label) { + this.type = syntax_1.Syntax.BreakStatement; + this.label = label; + } + return BreakStatement; + }()); + exports.BreakStatement = BreakStatement; + var CallExpression = (function () { + function CallExpression(callee, args) { + this.type = syntax_1.Syntax.CallExpression; + this.callee = callee; + this.arguments = args; + } + return CallExpression; + }()); + exports.CallExpression = CallExpression; + var CatchClause = (function () { + function CatchClause(param, body) { + this.type = syntax_1.Syntax.CatchClause; + this.param = param; + this.body = body; + } + return CatchClause; + }()); + exports.CatchClause = CatchClause; + var ClassBody = (function () { + function ClassBody(body) { + this.type = syntax_1.Syntax.ClassBody; + this.body = body; + } + return ClassBody; + }()); + exports.ClassBody = ClassBody; + var ClassDeclaration = (function () { + function ClassDeclaration(id, superClass, body) { + this.type = syntax_1.Syntax.ClassDeclaration; + this.id = id; + this.superClass = superClass; + this.body = body; + } + return ClassDeclaration; + }()); + exports.ClassDeclaration = ClassDeclaration; + var ClassExpression = (function () { + function ClassExpression(id, superClass, body) { + this.type = syntax_1.Syntax.ClassExpression; + this.id = id; + this.superClass = superClass; + this.body = body; + } + return ClassExpression; + }()); + exports.ClassExpression = ClassExpression; + var ComputedMemberExpression = (function () { + function ComputedMemberExpression(object, property) { + this.type = syntax_1.Syntax.MemberExpression; + this.computed = true; + this.object = object; + this.property = property; + } + return ComputedMemberExpression; + }()); + exports.ComputedMemberExpression = ComputedMemberExpression; + var ConditionalExpression = (function () { + function ConditionalExpression(test, consequent, alternate) { + this.type = syntax_1.Syntax.ConditionalExpression; + this.test = test; + this.consequent = consequent; + this.alternate = alternate; + } + return ConditionalExpression; + }()); + exports.ConditionalExpression = ConditionalExpression; + var ContinueStatement = (function () { + function ContinueStatement(label) { + this.type = syntax_1.Syntax.ContinueStatement; + this.label = label; + } + return ContinueStatement; + }()); + exports.ContinueStatement = ContinueStatement; + var DebuggerStatement = (function () { + function DebuggerStatement() { + this.type = syntax_1.Syntax.DebuggerStatement; + } + return DebuggerStatement; + }()); + exports.DebuggerStatement = DebuggerStatement; + var Directive = (function () { + function Directive(expression, directive) { + this.type = syntax_1.Syntax.ExpressionStatement; + this.expression = expression; + this.directive = directive; + } + return Directive; + }()); + exports.Directive = Directive; + var DoWhileStatement = (function () { + function DoWhileStatement(body, test) { + this.type = syntax_1.Syntax.DoWhileStatement; + this.body = body; + this.test = test; + } + return DoWhileStatement; + }()); + exports.DoWhileStatement = DoWhileStatement; + var EmptyStatement = (function () { + function EmptyStatement() { + this.type = syntax_1.Syntax.EmptyStatement; + } + return EmptyStatement; + }()); + exports.EmptyStatement = EmptyStatement; + var ExportAllDeclaration = (function () { + function ExportAllDeclaration(source) { + this.type = syntax_1.Syntax.ExportAllDeclaration; + this.source = source; + } + return ExportAllDeclaration; + }()); + exports.ExportAllDeclaration = ExportAllDeclaration; + var ExportDefaultDeclaration = (function () { + function ExportDefaultDeclaration(declaration) { + this.type = syntax_1.Syntax.ExportDefaultDeclaration; + this.declaration = declaration; + } + return ExportDefaultDeclaration; + }()); + exports.ExportDefaultDeclaration = ExportDefaultDeclaration; + var ExportNamedDeclaration = (function () { + function ExportNamedDeclaration(declaration, specifiers, source) { + this.type = syntax_1.Syntax.ExportNamedDeclaration; + this.declaration = declaration; + this.specifiers = specifiers; + this.source = source; + } + return ExportNamedDeclaration; + }()); + exports.ExportNamedDeclaration = ExportNamedDeclaration; + var ExportSpecifier = (function () { + function ExportSpecifier(local, exported) { + this.type = syntax_1.Syntax.ExportSpecifier; + this.exported = exported; + this.local = local; + } + return ExportSpecifier; + }()); + exports.ExportSpecifier = ExportSpecifier; + var ExpressionStatement = (function () { + function ExpressionStatement(expression) { + this.type = syntax_1.Syntax.ExpressionStatement; + this.expression = expression; + } + return ExpressionStatement; + }()); + exports.ExpressionStatement = ExpressionStatement; + var ForInStatement = (function () { + function ForInStatement(left, right, body) { + this.type = syntax_1.Syntax.ForInStatement; + this.left = left; + this.right = right; + this.body = body; + this.each = false; + } + return ForInStatement; + }()); + exports.ForInStatement = ForInStatement; + var ForOfStatement = (function () { + function ForOfStatement(left, right, body) { + this.type = syntax_1.Syntax.ForOfStatement; + this.left = left; + this.right = right; + this.body = body; + } + return ForOfStatement; + }()); + exports.ForOfStatement = ForOfStatement; + var ForStatement = (function () { + function ForStatement(init, test, update, body) { + this.type = syntax_1.Syntax.ForStatement; + this.init = init; + this.test = test; + this.update = update; + this.body = body; + } + return ForStatement; + }()); + exports.ForStatement = ForStatement; + var FunctionDeclaration = (function () { + function FunctionDeclaration(id, params, body, generator) { + this.type = syntax_1.Syntax.FunctionDeclaration; + this.id = id; + this.params = params; + this.body = body; + this.generator = generator; + this.expression = false; + this.async = false; + } + return FunctionDeclaration; + }()); + exports.FunctionDeclaration = FunctionDeclaration; + var FunctionExpression = (function () { + function FunctionExpression(id, params, body, generator) { + this.type = syntax_1.Syntax.FunctionExpression; + this.id = id; + this.params = params; + this.body = body; + this.generator = generator; + this.expression = false; + this.async = false; + } + return FunctionExpression; + }()); + exports.FunctionExpression = FunctionExpression; + var Identifier = (function () { + function Identifier(name) { + this.type = syntax_1.Syntax.Identifier; + this.name = name; + } + return Identifier; + }()); + exports.Identifier = Identifier; + var IfStatement = (function () { + function IfStatement(test, consequent, alternate) { + this.type = syntax_1.Syntax.IfStatement; + this.test = test; + this.consequent = consequent; + this.alternate = alternate; + } + return IfStatement; + }()); + exports.IfStatement = IfStatement; + var ImportDeclaration = (function () { + function ImportDeclaration(specifiers, source) { + this.type = syntax_1.Syntax.ImportDeclaration; + this.specifiers = specifiers; + this.source = source; + } + return ImportDeclaration; + }()); + exports.ImportDeclaration = ImportDeclaration; + var ImportDefaultSpecifier = (function () { + function ImportDefaultSpecifier(local) { + this.type = syntax_1.Syntax.ImportDefaultSpecifier; + this.local = local; + } + return ImportDefaultSpecifier; + }()); + exports.ImportDefaultSpecifier = ImportDefaultSpecifier; + var ImportNamespaceSpecifier = (function () { + function ImportNamespaceSpecifier(local) { + this.type = syntax_1.Syntax.ImportNamespaceSpecifier; + this.local = local; + } + return ImportNamespaceSpecifier; + }()); + exports.ImportNamespaceSpecifier = ImportNamespaceSpecifier; + var ImportSpecifier = (function () { + function ImportSpecifier(local, imported) { + this.type = syntax_1.Syntax.ImportSpecifier; + this.local = local; + this.imported = imported; + } + return ImportSpecifier; + }()); + exports.ImportSpecifier = ImportSpecifier; + var LabeledStatement = (function () { + function LabeledStatement(label, body) { + this.type = syntax_1.Syntax.LabeledStatement; + this.label = label; + this.body = body; + } + return LabeledStatement; + }()); + exports.LabeledStatement = LabeledStatement; + var Literal = (function () { + function Literal(value, raw) { + this.type = syntax_1.Syntax.Literal; + this.value = value; + this.raw = raw; + } + return Literal; + }()); + exports.Literal = Literal; + var MetaProperty = (function () { + function MetaProperty(meta, property) { + this.type = syntax_1.Syntax.MetaProperty; + this.meta = meta; + this.property = property; + } + return MetaProperty; + }()); + exports.MetaProperty = MetaProperty; + var MethodDefinition = (function () { + function MethodDefinition(key, computed, value, kind, isStatic) { + this.type = syntax_1.Syntax.MethodDefinition; + this.key = key; + this.computed = computed; + this.value = value; + this.kind = kind; + this.static = isStatic; + } + return MethodDefinition; + }()); + exports.MethodDefinition = MethodDefinition; + var Module = (function () { + function Module(body) { + this.type = syntax_1.Syntax.Program; + this.body = body; + this.sourceType = 'module'; + } + return Module; + }()); + exports.Module = Module; + var NewExpression = (function () { + function NewExpression(callee, args) { + this.type = syntax_1.Syntax.NewExpression; + this.callee = callee; + this.arguments = args; + } + return NewExpression; + }()); + exports.NewExpression = NewExpression; + var ObjectExpression = (function () { + function ObjectExpression(properties) { + this.type = syntax_1.Syntax.ObjectExpression; + this.properties = properties; + } + return ObjectExpression; + }()); + exports.ObjectExpression = ObjectExpression; + var ObjectPattern = (function () { + function ObjectPattern(properties) { + this.type = syntax_1.Syntax.ObjectPattern; + this.properties = properties; + } + return ObjectPattern; + }()); + exports.ObjectPattern = ObjectPattern; + var Property = (function () { + function Property(kind, key, computed, value, method, shorthand) { + this.type = syntax_1.Syntax.Property; + this.key = key; + this.computed = computed; + this.value = value; + this.kind = kind; + this.method = method; + this.shorthand = shorthand; + } + return Property; + }()); + exports.Property = Property; + var RegexLiteral = (function () { + function RegexLiteral(value, raw, pattern, flags) { + this.type = syntax_1.Syntax.Literal; + this.value = value; + this.raw = raw; + this.regex = { pattern: pattern, flags: flags }; + } + return RegexLiteral; + }()); + exports.RegexLiteral = RegexLiteral; + var RestElement = (function () { + function RestElement(argument) { + this.type = syntax_1.Syntax.RestElement; + this.argument = argument; + } + return RestElement; + }()); + exports.RestElement = RestElement; + var ReturnStatement = (function () { + function ReturnStatement(argument) { + this.type = syntax_1.Syntax.ReturnStatement; + this.argument = argument; + } + return ReturnStatement; + }()); + exports.ReturnStatement = ReturnStatement; + var Script = (function () { + function Script(body) { + this.type = syntax_1.Syntax.Program; + this.body = body; + this.sourceType = 'script'; + } + return Script; + }()); + exports.Script = Script; + var SequenceExpression = (function () { + function SequenceExpression(expressions) { + this.type = syntax_1.Syntax.SequenceExpression; + this.expressions = expressions; + } + return SequenceExpression; + }()); + exports.SequenceExpression = SequenceExpression; + var SpreadElement = (function () { + function SpreadElement(argument) { + this.type = syntax_1.Syntax.SpreadElement; + this.argument = argument; + } + return SpreadElement; + }()); + exports.SpreadElement = SpreadElement; + var StaticMemberExpression = (function () { + function StaticMemberExpression(object, property) { + this.type = syntax_1.Syntax.MemberExpression; + this.computed = false; + this.object = object; + this.property = property; + } + return StaticMemberExpression; + }()); + exports.StaticMemberExpression = StaticMemberExpression; + var Super = (function () { + function Super() { + this.type = syntax_1.Syntax.Super; + } + return Super; + }()); + exports.Super = Super; + var SwitchCase = (function () { + function SwitchCase(test, consequent) { + this.type = syntax_1.Syntax.SwitchCase; + this.test = test; + this.consequent = consequent; + } + return SwitchCase; + }()); + exports.SwitchCase = SwitchCase; + var SwitchStatement = (function () { + function SwitchStatement(discriminant, cases) { + this.type = syntax_1.Syntax.SwitchStatement; + this.discriminant = discriminant; + this.cases = cases; + } + return SwitchStatement; + }()); + exports.SwitchStatement = SwitchStatement; + var TaggedTemplateExpression = (function () { + function TaggedTemplateExpression(tag, quasi) { + this.type = syntax_1.Syntax.TaggedTemplateExpression; + this.tag = tag; + this.quasi = quasi; + } + return TaggedTemplateExpression; + }()); + exports.TaggedTemplateExpression = TaggedTemplateExpression; + var TemplateElement = (function () { + function TemplateElement(value, tail) { + this.type = syntax_1.Syntax.TemplateElement; + this.value = value; + this.tail = tail; + } + return TemplateElement; + }()); + exports.TemplateElement = TemplateElement; + var TemplateLiteral = (function () { + function TemplateLiteral(quasis, expressions) { + this.type = syntax_1.Syntax.TemplateLiteral; + this.quasis = quasis; + this.expressions = expressions; + } + return TemplateLiteral; + }()); + exports.TemplateLiteral = TemplateLiteral; + var ThisExpression = (function () { + function ThisExpression() { + this.type = syntax_1.Syntax.ThisExpression; + } + return ThisExpression; + }()); + exports.ThisExpression = ThisExpression; + var ThrowStatement = (function () { + function ThrowStatement(argument) { + this.type = syntax_1.Syntax.ThrowStatement; + this.argument = argument; + } + return ThrowStatement; + }()); + exports.ThrowStatement = ThrowStatement; + var TryStatement = (function () { + function TryStatement(block, handler, finalizer) { + this.type = syntax_1.Syntax.TryStatement; + this.block = block; + this.handler = handler; + this.finalizer = finalizer; + } + return TryStatement; + }()); + exports.TryStatement = TryStatement; + var UnaryExpression = (function () { + function UnaryExpression(operator, argument) { + this.type = syntax_1.Syntax.UnaryExpression; + this.operator = operator; + this.argument = argument; + this.prefix = true; + } + return UnaryExpression; + }()); + exports.UnaryExpression = UnaryExpression; + var UpdateExpression = (function () { + function UpdateExpression(operator, argument, prefix) { + this.type = syntax_1.Syntax.UpdateExpression; + this.operator = operator; + this.argument = argument; + this.prefix = prefix; + } + return UpdateExpression; + }()); + exports.UpdateExpression = UpdateExpression; + var VariableDeclaration = (function () { + function VariableDeclaration(declarations, kind) { + this.type = syntax_1.Syntax.VariableDeclaration; + this.declarations = declarations; + this.kind = kind; + } + return VariableDeclaration; + }()); + exports.VariableDeclaration = VariableDeclaration; + var VariableDeclarator = (function () { + function VariableDeclarator(id, init) { + this.type = syntax_1.Syntax.VariableDeclarator; + this.id = id; + this.init = init; + } + return VariableDeclarator; + }()); + exports.VariableDeclarator = VariableDeclarator; + var WhileStatement = (function () { + function WhileStatement(test, body) { + this.type = syntax_1.Syntax.WhileStatement; + this.test = test; + this.body = body; + } + return WhileStatement; + }()); + exports.WhileStatement = WhileStatement; + var WithStatement = (function () { + function WithStatement(object, body) { + this.type = syntax_1.Syntax.WithStatement; + this.object = object; + this.body = body; + } + return WithStatement; + }()); + exports.WithStatement = WithStatement; + var YieldExpression = (function () { + function YieldExpression(argument, delegate) { + this.type = syntax_1.Syntax.YieldExpression; + this.argument = argument; + this.delegate = delegate; + } + return YieldExpression; + }()); + exports.YieldExpression = YieldExpression; + + +/***/ }, +/* 8 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var assert_1 = __webpack_require__(9); + var error_handler_1 = __webpack_require__(10); + var messages_1 = __webpack_require__(11); + var Node = __webpack_require__(7); + var scanner_1 = __webpack_require__(12); + var syntax_1 = __webpack_require__(2); + var token_1 = __webpack_require__(13); + var ArrowParameterPlaceHolder = 'ArrowParameterPlaceHolder'; + var Parser = (function () { + function Parser(code, options, delegate) { + if (options === void 0) { options = {}; } + this.config = { + range: (typeof options.range === 'boolean') && options.range, + loc: (typeof options.loc === 'boolean') && options.loc, + source: null, + tokens: (typeof options.tokens === 'boolean') && options.tokens, + comment: (typeof options.comment === 'boolean') && options.comment, + tolerant: (typeof options.tolerant === 'boolean') && options.tolerant + }; + if (this.config.loc && options.source && options.source !== null) { + this.config.source = String(options.source); + } + this.delegate = delegate; + this.errorHandler = new error_handler_1.ErrorHandler(); + this.errorHandler.tolerant = this.config.tolerant; + this.scanner = new scanner_1.Scanner(code, this.errorHandler); + this.scanner.trackComment = this.config.comment; + this.operatorPrecedence = { + ')': 0, + ';': 0, + ',': 0, + '=': 0, + ']': 0, + '||': 1, + '&&': 2, + '|': 3, + '^': 4, + '&': 5, + '==': 6, + '!=': 6, + '===': 6, + '!==': 6, + '<': 7, + '>': 7, + '<=': 7, + '>=': 7, + '<<': 8, + '>>': 8, + '>>>': 8, + '+': 9, + '-': 9, + '*': 11, + '/': 11, + '%': 11 + }; + this.lookahead = { + type: 2 /* EOF */, + value: '', + lineNumber: this.scanner.lineNumber, + lineStart: 0, + start: 0, + end: 0 + }; + this.hasLineTerminator = false; + this.context = { + isModule: false, + await: false, + allowIn: true, + allowStrictDirective: true, + allowYield: true, + firstCoverInitializedNameError: null, + isAssignmentTarget: false, + isBindingElement: false, + inFunctionBody: false, + inIteration: false, + inSwitch: false, + labelSet: {}, + strict: false + }; + this.tokens = []; + this.startMarker = { + index: 0, + line: this.scanner.lineNumber, + column: 0 + }; + this.lastMarker = { + index: 0, + line: this.scanner.lineNumber, + column: 0 + }; + this.nextToken(); + this.lastMarker = { + index: this.scanner.index, + line: this.scanner.lineNumber, + column: this.scanner.index - this.scanner.lineStart + }; + } + Parser.prototype.throwError = function (messageFormat) { + var values = []; + for (var _i = 1; _i < arguments.length; _i++) { + values[_i - 1] = arguments[_i]; + } + var args = Array.prototype.slice.call(arguments, 1); + var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) { + assert_1.assert(idx < args.length, 'Message reference must be in range'); + return args[idx]; + }); + var index = this.lastMarker.index; + var line = this.lastMarker.line; + var column = this.lastMarker.column + 1; + throw this.errorHandler.createError(index, line, column, msg); + }; + Parser.prototype.tolerateError = function (messageFormat) { + var values = []; + for (var _i = 1; _i < arguments.length; _i++) { + values[_i - 1] = arguments[_i]; + } + var args = Array.prototype.slice.call(arguments, 1); + var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) { + assert_1.assert(idx < args.length, 'Message reference must be in range'); + return args[idx]; + }); + var index = this.lastMarker.index; + var line = this.scanner.lineNumber; + var column = this.lastMarker.column + 1; + this.errorHandler.tolerateError(index, line, column, msg); + }; + // Throw an exception because of the token. + Parser.prototype.unexpectedTokenError = function (token, message) { + var msg = message || messages_1.Messages.UnexpectedToken; + var value; + if (token) { + if (!message) { + msg = (token.type === 2 /* EOF */) ? messages_1.Messages.UnexpectedEOS : + (token.type === 3 /* Identifier */) ? messages_1.Messages.UnexpectedIdentifier : + (token.type === 6 /* NumericLiteral */) ? messages_1.Messages.UnexpectedNumber : + (token.type === 8 /* StringLiteral */) ? messages_1.Messages.UnexpectedString : + (token.type === 10 /* Template */) ? messages_1.Messages.UnexpectedTemplate : + messages_1.Messages.UnexpectedToken; + if (token.type === 4 /* Keyword */) { + if (this.scanner.isFutureReservedWord(token.value)) { + msg = messages_1.Messages.UnexpectedReserved; + } + else if (this.context.strict && this.scanner.isStrictModeReservedWord(token.value)) { + msg = messages_1.Messages.StrictReservedWord; + } + } + } + value = token.value; + } + else { + value = 'ILLEGAL'; + } + msg = msg.replace('%0', value); + if (token && typeof token.lineNumber === 'number') { + var index = token.start; + var line = token.lineNumber; + var lastMarkerLineStart = this.lastMarker.index - this.lastMarker.column; + var column = token.start - lastMarkerLineStart + 1; + return this.errorHandler.createError(index, line, column, msg); + } + else { + var index = this.lastMarker.index; + var line = this.lastMarker.line; + var column = this.lastMarker.column + 1; + return this.errorHandler.createError(index, line, column, msg); + } + }; + Parser.prototype.throwUnexpectedToken = function (token, message) { + throw this.unexpectedTokenError(token, message); + }; + Parser.prototype.tolerateUnexpectedToken = function (token, message) { + this.errorHandler.tolerate(this.unexpectedTokenError(token, message)); + }; + Parser.prototype.collectComments = function () { + if (!this.config.comment) { + this.scanner.scanComments(); + } + else { + var comments = this.scanner.scanComments(); + if (comments.length > 0 && this.delegate) { + for (var i = 0; i < comments.length; ++i) { + var e = comments[i]; + var node = void 0; + node = { + type: e.multiLine ? 'BlockComment' : 'LineComment', + value: this.scanner.source.slice(e.slice[0], e.slice[1]) + }; + if (this.config.range) { + node.range = e.range; + } + if (this.config.loc) { + node.loc = e.loc; + } + var metadata = { + start: { + line: e.loc.start.line, + column: e.loc.start.column, + offset: e.range[0] + }, + end: { + line: e.loc.end.line, + column: e.loc.end.column, + offset: e.range[1] + } + }; + this.delegate(node, metadata); + } + } + } + }; + // From internal representation to an external structure + Parser.prototype.getTokenRaw = function (token) { + return this.scanner.source.slice(token.start, token.end); + }; + Parser.prototype.convertToken = function (token) { + var t = { + type: token_1.TokenName[token.type], + value: this.getTokenRaw(token) + }; + if (this.config.range) { + t.range = [token.start, token.end]; + } + if (this.config.loc) { + t.loc = { + start: { + line: this.startMarker.line, + column: this.startMarker.column + }, + end: { + line: this.scanner.lineNumber, + column: this.scanner.index - this.scanner.lineStart + } + }; + } + if (token.type === 9 /* RegularExpression */) { + var pattern = token.pattern; + var flags = token.flags; + t.regex = { pattern: pattern, flags: flags }; + } + return t; + }; + Parser.prototype.nextToken = function () { + var token = this.lookahead; + this.lastMarker.index = this.scanner.index; + this.lastMarker.line = this.scanner.lineNumber; + this.lastMarker.column = this.scanner.index - this.scanner.lineStart; + this.collectComments(); + if (this.scanner.index !== this.startMarker.index) { + this.startMarker.index = this.scanner.index; + this.startMarker.line = this.scanner.lineNumber; + this.startMarker.column = this.scanner.index - this.scanner.lineStart; + } + var next = this.scanner.lex(); + this.hasLineTerminator = (token.lineNumber !== next.lineNumber); + if (next && this.context.strict && next.type === 3 /* Identifier */) { + if (this.scanner.isStrictModeReservedWord(next.value)) { + next.type = 4 /* Keyword */; + } + } + this.lookahead = next; + if (this.config.tokens && next.type !== 2 /* EOF */) { + this.tokens.push(this.convertToken(next)); + } + return token; + }; + Parser.prototype.nextRegexToken = function () { + this.collectComments(); + var token = this.scanner.scanRegExp(); + if (this.config.tokens) { + // Pop the previous token, '/' or '/=' + // This is added from the lookahead token. + this.tokens.pop(); + this.tokens.push(this.convertToken(token)); + } + // Prime the next lookahead. + this.lookahead = token; + this.nextToken(); + return token; + }; + Parser.prototype.createNode = function () { + return { + index: this.startMarker.index, + line: this.startMarker.line, + column: this.startMarker.column + }; + }; + Parser.prototype.startNode = function (token, lastLineStart) { + if (lastLineStart === void 0) { lastLineStart = 0; } + var column = token.start - token.lineStart; + var line = token.lineNumber; + if (column < 0) { + column += lastLineStart; + line--; + } + return { + index: token.start, + line: line, + column: column + }; + }; + Parser.prototype.finalize = function (marker, node) { + if (this.config.range) { + node.range = [marker.index, this.lastMarker.index]; + } + if (this.config.loc) { + node.loc = { + start: { + line: marker.line, + column: marker.column, + }, + end: { + line: this.lastMarker.line, + column: this.lastMarker.column + } + }; + if (this.config.source) { + node.loc.source = this.config.source; + } + } + if (this.delegate) { + var metadata = { + start: { + line: marker.line, + column: marker.column, + offset: marker.index + }, + end: { + line: this.lastMarker.line, + column: this.lastMarker.column, + offset: this.lastMarker.index + } + }; + this.delegate(node, metadata); + } + return node; + }; + // Expect the next token to match the specified punctuator. + // If not, an exception will be thrown. + Parser.prototype.expect = function (value) { + var token = this.nextToken(); + if (token.type !== 7 /* Punctuator */ || token.value !== value) { + this.throwUnexpectedToken(token); + } + }; + // Quietly expect a comma when in tolerant mode, otherwise delegates to expect(). + Parser.prototype.expectCommaSeparator = function () { + if (this.config.tolerant) { + var token = this.lookahead; + if (token.type === 7 /* Punctuator */ && token.value === ',') { + this.nextToken(); + } + else if (token.type === 7 /* Punctuator */ && token.value === ';') { + this.nextToken(); + this.tolerateUnexpectedToken(token); + } + else { + this.tolerateUnexpectedToken(token, messages_1.Messages.UnexpectedToken); + } + } + else { + this.expect(','); + } + }; + // Expect the next token to match the specified keyword. + // If not, an exception will be thrown. + Parser.prototype.expectKeyword = function (keyword) { + var token = this.nextToken(); + if (token.type !== 4 /* Keyword */ || token.value !== keyword) { + this.throwUnexpectedToken(token); + } + }; + // Return true if the next token matches the specified punctuator. + Parser.prototype.match = function (value) { + return this.lookahead.type === 7 /* Punctuator */ && this.lookahead.value === value; + }; + // Return true if the next token matches the specified keyword + Parser.prototype.matchKeyword = function (keyword) { + return this.lookahead.type === 4 /* Keyword */ && this.lookahead.value === keyword; + }; + // Return true if the next token matches the specified contextual keyword + // (where an identifier is sometimes a keyword depending on the context) + Parser.prototype.matchContextualKeyword = function (keyword) { + return this.lookahead.type === 3 /* Identifier */ && this.lookahead.value === keyword; + }; + // Return true if the next token is an assignment operator + Parser.prototype.matchAssign = function () { + if (this.lookahead.type !== 7 /* Punctuator */) { + return false; + } + var op = this.lookahead.value; + return op === '=' || + op === '*=' || + op === '**=' || + op === '/=' || + op === '%=' || + op === '+=' || + op === '-=' || + op === '<<=' || + op === '>>=' || + op === '>>>=' || + op === '&=' || + op === '^=' || + op === '|='; + }; + // Cover grammar support. + // + // When an assignment expression position starts with an left parenthesis, the determination of the type + // of the syntax is to be deferred arbitrarily long until the end of the parentheses pair (plus a lookahead) + // or the first comma. This situation also defers the determination of all the expressions nested in the pair. + // + // There are three productions that can be parsed in a parentheses pair that needs to be determined + // after the outermost pair is closed. They are: + // + // 1. AssignmentExpression + // 2. BindingElements + // 3. AssignmentTargets + // + // In order to avoid exponential backtracking, we use two flags to denote if the production can be + // binding element or assignment target. + // + // The three productions have the relationship: + // + // BindingElements ⊆ AssignmentTargets ⊆ AssignmentExpression + // + // with a single exception that CoverInitializedName when used directly in an Expression, generates + // an early error. Therefore, we need the third state, firstCoverInitializedNameError, to track the + // first usage of CoverInitializedName and report it when we reached the end of the parentheses pair. + // + // isolateCoverGrammar function runs the given parser function with a new cover grammar context, and it does not + // effect the current flags. This means the production the parser parses is only used as an expression. Therefore + // the CoverInitializedName check is conducted. + // + // inheritCoverGrammar function runs the given parse function with a new cover grammar context, and it propagates + // the flags outside of the parser. This means the production the parser parses is used as a part of a potential + // pattern. The CoverInitializedName check is deferred. + Parser.prototype.isolateCoverGrammar = function (parseFunction) { + var previousIsBindingElement = this.context.isBindingElement; + var previousIsAssignmentTarget = this.context.isAssignmentTarget; + var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError; + this.context.isBindingElement = true; + this.context.isAssignmentTarget = true; + this.context.firstCoverInitializedNameError = null; + var result = parseFunction.call(this); + if (this.context.firstCoverInitializedNameError !== null) { + this.throwUnexpectedToken(this.context.firstCoverInitializedNameError); + } + this.context.isBindingElement = previousIsBindingElement; + this.context.isAssignmentTarget = previousIsAssignmentTarget; + this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError; + return result; + }; + Parser.prototype.inheritCoverGrammar = function (parseFunction) { + var previousIsBindingElement = this.context.isBindingElement; + var previousIsAssignmentTarget = this.context.isAssignmentTarget; + var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError; + this.context.isBindingElement = true; + this.context.isAssignmentTarget = true; + this.context.firstCoverInitializedNameError = null; + var result = parseFunction.call(this); + this.context.isBindingElement = this.context.isBindingElement && previousIsBindingElement; + this.context.isAssignmentTarget = this.context.isAssignmentTarget && previousIsAssignmentTarget; + this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError || this.context.firstCoverInitializedNameError; + return result; + }; + Parser.prototype.consumeSemicolon = function () { + if (this.match(';')) { + this.nextToken(); + } + else if (!this.hasLineTerminator) { + if (this.lookahead.type !== 2 /* EOF */ && !this.match('}')) { + this.throwUnexpectedToken(this.lookahead); + } + this.lastMarker.index = this.startMarker.index; + this.lastMarker.line = this.startMarker.line; + this.lastMarker.column = this.startMarker.column; + } + }; + // https://tc39.github.io/ecma262/#sec-primary-expression + Parser.prototype.parsePrimaryExpression = function () { + var node = this.createNode(); + var expr; + var token, raw; + switch (this.lookahead.type) { + case 3 /* Identifier */: + if ((this.context.isModule || this.context.await) && this.lookahead.value === 'await') { + this.tolerateUnexpectedToken(this.lookahead); + } + expr = this.matchAsyncFunction() ? this.parseFunctionExpression() : this.finalize(node, new Node.Identifier(this.nextToken().value)); + break; + case 6 /* NumericLiteral */: + case 8 /* StringLiteral */: + if (this.context.strict && this.lookahead.octal) { + this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.StrictOctalLiteral); + } + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + token = this.nextToken(); + raw = this.getTokenRaw(token); + expr = this.finalize(node, new Node.Literal(token.value, raw)); + break; + case 1 /* BooleanLiteral */: + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + token = this.nextToken(); + raw = this.getTokenRaw(token); + expr = this.finalize(node, new Node.Literal(token.value === 'true', raw)); + break; + case 5 /* NullLiteral */: + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + token = this.nextToken(); + raw = this.getTokenRaw(token); + expr = this.finalize(node, new Node.Literal(null, raw)); + break; + case 10 /* Template */: + expr = this.parseTemplateLiteral(); + break; + case 7 /* Punctuator */: + switch (this.lookahead.value) { + case '(': + this.context.isBindingElement = false; + expr = this.inheritCoverGrammar(this.parseGroupExpression); + break; + case '[': + expr = this.inheritCoverGrammar(this.parseArrayInitializer); + break; + case '{': + expr = this.inheritCoverGrammar(this.parseObjectInitializer); + break; + case '/': + case '/=': + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + this.scanner.index = this.startMarker.index; + token = this.nextRegexToken(); + raw = this.getTokenRaw(token); + expr = this.finalize(node, new Node.RegexLiteral(token.regex, raw, token.pattern, token.flags)); + break; + default: + expr = this.throwUnexpectedToken(this.nextToken()); + } + break; + case 4 /* Keyword */: + if (!this.context.strict && this.context.allowYield && this.matchKeyword('yield')) { + expr = this.parseIdentifierName(); + } + else if (!this.context.strict && this.matchKeyword('let')) { + expr = this.finalize(node, new Node.Identifier(this.nextToken().value)); + } + else { + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + if (this.matchKeyword('function')) { + expr = this.parseFunctionExpression(); + } + else if (this.matchKeyword('this')) { + this.nextToken(); + expr = this.finalize(node, new Node.ThisExpression()); + } + else if (this.matchKeyword('class')) { + expr = this.parseClassExpression(); + } + else { + expr = this.throwUnexpectedToken(this.nextToken()); + } + } + break; + default: + expr = this.throwUnexpectedToken(this.nextToken()); + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-array-initializer + Parser.prototype.parseSpreadElement = function () { + var node = this.createNode(); + this.expect('...'); + var arg = this.inheritCoverGrammar(this.parseAssignmentExpression); + return this.finalize(node, new Node.SpreadElement(arg)); + }; + Parser.prototype.parseArrayInitializer = function () { + var node = this.createNode(); + var elements = []; + this.expect('['); + while (!this.match(']')) { + if (this.match(',')) { + this.nextToken(); + elements.push(null); + } + else if (this.match('...')) { + var element = this.parseSpreadElement(); + if (!this.match(']')) { + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + this.expect(','); + } + elements.push(element); + } + else { + elements.push(this.inheritCoverGrammar(this.parseAssignmentExpression)); + if (!this.match(']')) { + this.expect(','); + } + } + } + this.expect(']'); + return this.finalize(node, new Node.ArrayExpression(elements)); + }; + // https://tc39.github.io/ecma262/#sec-object-initializer + Parser.prototype.parsePropertyMethod = function (params) { + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + var previousStrict = this.context.strict; + var previousAllowStrictDirective = this.context.allowStrictDirective; + this.context.allowStrictDirective = params.simple; + var body = this.isolateCoverGrammar(this.parseFunctionSourceElements); + if (this.context.strict && params.firstRestricted) { + this.tolerateUnexpectedToken(params.firstRestricted, params.message); + } + if (this.context.strict && params.stricted) { + this.tolerateUnexpectedToken(params.stricted, params.message); + } + this.context.strict = previousStrict; + this.context.allowStrictDirective = previousAllowStrictDirective; + return body; + }; + Parser.prototype.parsePropertyMethodFunction = function () { + var isGenerator = false; + var node = this.createNode(); + var previousAllowYield = this.context.allowYield; + this.context.allowYield = true; + var params = this.parseFormalParameters(); + var method = this.parsePropertyMethod(params); + this.context.allowYield = previousAllowYield; + return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator)); + }; + Parser.prototype.parsePropertyMethodAsyncFunction = function () { + var node = this.createNode(); + var previousAllowYield = this.context.allowYield; + var previousAwait = this.context.await; + this.context.allowYield = false; + this.context.await = true; + var params = this.parseFormalParameters(); + var method = this.parsePropertyMethod(params); + this.context.allowYield = previousAllowYield; + this.context.await = previousAwait; + return this.finalize(node, new Node.AsyncFunctionExpression(null, params.params, method)); + }; + Parser.prototype.parseObjectPropertyKey = function () { + var node = this.createNode(); + var token = this.nextToken(); + var key; + switch (token.type) { + case 8 /* StringLiteral */: + case 6 /* NumericLiteral */: + if (this.context.strict && token.octal) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictOctalLiteral); + } + var raw = this.getTokenRaw(token); + key = this.finalize(node, new Node.Literal(token.value, raw)); + break; + case 3 /* Identifier */: + case 1 /* BooleanLiteral */: + case 5 /* NullLiteral */: + case 4 /* Keyword */: + key = this.finalize(node, new Node.Identifier(token.value)); + break; + case 7 /* Punctuator */: + if (token.value === '[') { + key = this.isolateCoverGrammar(this.parseAssignmentExpression); + this.expect(']'); + } + else { + key = this.throwUnexpectedToken(token); + } + break; + default: + key = this.throwUnexpectedToken(token); + } + return key; + }; + Parser.prototype.isPropertyKey = function (key, value) { + return (key.type === syntax_1.Syntax.Identifier && key.name === value) || + (key.type === syntax_1.Syntax.Literal && key.value === value); + }; + Parser.prototype.parseObjectProperty = function (hasProto) { + var node = this.createNode(); + var token = this.lookahead; + var kind; + var key = null; + var value = null; + var computed = false; + var method = false; + var shorthand = false; + var isAsync = false; + if (token.type === 3 /* Identifier */) { + var id = token.value; + this.nextToken(); + computed = this.match('['); + isAsync = !this.hasLineTerminator && (id === 'async') && + !this.match(':') && !this.match('(') && !this.match('*') && !this.match(','); + key = isAsync ? this.parseObjectPropertyKey() : this.finalize(node, new Node.Identifier(id)); + } + else if (this.match('*')) { + this.nextToken(); + } + else { + computed = this.match('['); + key = this.parseObjectPropertyKey(); + } + var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead); + if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'get' && lookaheadPropertyKey) { + kind = 'get'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + this.context.allowYield = false; + value = this.parseGetterMethod(); + } + else if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'set' && lookaheadPropertyKey) { + kind = 'set'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + value = this.parseSetterMethod(); + } + else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) { + kind = 'init'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + value = this.parseGeneratorMethod(); + method = true; + } + else { + if (!key) { + this.throwUnexpectedToken(this.lookahead); + } + kind = 'init'; + if (this.match(':') && !isAsync) { + if (!computed && this.isPropertyKey(key, '__proto__')) { + if (hasProto.value) { + this.tolerateError(messages_1.Messages.DuplicateProtoProperty); + } + hasProto.value = true; + } + this.nextToken(); + value = this.inheritCoverGrammar(this.parseAssignmentExpression); + } + else if (this.match('(')) { + value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction(); + method = true; + } + else if (token.type === 3 /* Identifier */) { + var id = this.finalize(node, new Node.Identifier(token.value)); + if (this.match('=')) { + this.context.firstCoverInitializedNameError = this.lookahead; + this.nextToken(); + shorthand = true; + var init = this.isolateCoverGrammar(this.parseAssignmentExpression); + value = this.finalize(node, new Node.AssignmentPattern(id, init)); + } + else { + shorthand = true; + value = id; + } + } + else { + this.throwUnexpectedToken(this.nextToken()); + } + } + return this.finalize(node, new Node.Property(kind, key, computed, value, method, shorthand)); + }; + Parser.prototype.parseObjectInitializer = function () { + var node = this.createNode(); + this.expect('{'); + var properties = []; + var hasProto = { value: false }; + while (!this.match('}')) { + properties.push(this.parseObjectProperty(hasProto)); + if (!this.match('}')) { + this.expectCommaSeparator(); + } + } + this.expect('}'); + return this.finalize(node, new Node.ObjectExpression(properties)); + }; + // https://tc39.github.io/ecma262/#sec-template-literals + Parser.prototype.parseTemplateHead = function () { + assert_1.assert(this.lookahead.head, 'Template literal must start with a template head'); + var node = this.createNode(); + var token = this.nextToken(); + var raw = token.value; + var cooked = token.cooked; + return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail)); + }; + Parser.prototype.parseTemplateElement = function () { + if (this.lookahead.type !== 10 /* Template */) { + this.throwUnexpectedToken(); + } + var node = this.createNode(); + var token = this.nextToken(); + var raw = token.value; + var cooked = token.cooked; + return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail)); + }; + Parser.prototype.parseTemplateLiteral = function () { + var node = this.createNode(); + var expressions = []; + var quasis = []; + var quasi = this.parseTemplateHead(); + quasis.push(quasi); + while (!quasi.tail) { + expressions.push(this.parseExpression()); + quasi = this.parseTemplateElement(); + quasis.push(quasi); + } + return this.finalize(node, new Node.TemplateLiteral(quasis, expressions)); + }; + // https://tc39.github.io/ecma262/#sec-grouping-operator + Parser.prototype.reinterpretExpressionAsPattern = function (expr) { + switch (expr.type) { + case syntax_1.Syntax.Identifier: + case syntax_1.Syntax.MemberExpression: + case syntax_1.Syntax.RestElement: + case syntax_1.Syntax.AssignmentPattern: + break; + case syntax_1.Syntax.SpreadElement: + expr.type = syntax_1.Syntax.RestElement; + this.reinterpretExpressionAsPattern(expr.argument); + break; + case syntax_1.Syntax.ArrayExpression: + expr.type = syntax_1.Syntax.ArrayPattern; + for (var i = 0; i < expr.elements.length; i++) { + if (expr.elements[i] !== null) { + this.reinterpretExpressionAsPattern(expr.elements[i]); + } + } + break; + case syntax_1.Syntax.ObjectExpression: + expr.type = syntax_1.Syntax.ObjectPattern; + for (var i = 0; i < expr.properties.length; i++) { + this.reinterpretExpressionAsPattern(expr.properties[i].value); + } + break; + case syntax_1.Syntax.AssignmentExpression: + expr.type = syntax_1.Syntax.AssignmentPattern; + delete expr.operator; + this.reinterpretExpressionAsPattern(expr.left); + break; + default: + // Allow other node type for tolerant parsing. + break; + } + }; + Parser.prototype.parseGroupExpression = function () { + var expr; + this.expect('('); + if (this.match(')')) { + this.nextToken(); + if (!this.match('=>')) { + this.expect('=>'); + } + expr = { + type: ArrowParameterPlaceHolder, + params: [], + async: false + }; + } + else { + var startToken = this.lookahead; + var params = []; + if (this.match('...')) { + expr = this.parseRestElement(params); + this.expect(')'); + if (!this.match('=>')) { + this.expect('=>'); + } + expr = { + type: ArrowParameterPlaceHolder, + params: [expr], + async: false + }; + } + else { + var arrow = false; + this.context.isBindingElement = true; + expr = this.inheritCoverGrammar(this.parseAssignmentExpression); + if (this.match(',')) { + var expressions = []; + this.context.isAssignmentTarget = false; + expressions.push(expr); + while (this.lookahead.type !== 2 /* EOF */) { + if (!this.match(',')) { + break; + } + this.nextToken(); + if (this.match(')')) { + this.nextToken(); + for (var i = 0; i < expressions.length; i++) { + this.reinterpretExpressionAsPattern(expressions[i]); + } + arrow = true; + expr = { + type: ArrowParameterPlaceHolder, + params: expressions, + async: false + }; + } + else if (this.match('...')) { + if (!this.context.isBindingElement) { + this.throwUnexpectedToken(this.lookahead); + } + expressions.push(this.parseRestElement(params)); + this.expect(')'); + if (!this.match('=>')) { + this.expect('=>'); + } + this.context.isBindingElement = false; + for (var i = 0; i < expressions.length; i++) { + this.reinterpretExpressionAsPattern(expressions[i]); + } + arrow = true; + expr = { + type: ArrowParameterPlaceHolder, + params: expressions, + async: false + }; + } + else { + expressions.push(this.inheritCoverGrammar(this.parseAssignmentExpression)); + } + if (arrow) { + break; + } + } + if (!arrow) { + expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions)); + } + } + if (!arrow) { + this.expect(')'); + if (this.match('=>')) { + if (expr.type === syntax_1.Syntax.Identifier && expr.name === 'yield') { + arrow = true; + expr = { + type: ArrowParameterPlaceHolder, + params: [expr], + async: false + }; + } + if (!arrow) { + if (!this.context.isBindingElement) { + this.throwUnexpectedToken(this.lookahead); + } + if (expr.type === syntax_1.Syntax.SequenceExpression) { + for (var i = 0; i < expr.expressions.length; i++) { + this.reinterpretExpressionAsPattern(expr.expressions[i]); + } + } + else { + this.reinterpretExpressionAsPattern(expr); + } + var parameters = (expr.type === syntax_1.Syntax.SequenceExpression ? expr.expressions : [expr]); + expr = { + type: ArrowParameterPlaceHolder, + params: parameters, + async: false + }; + } + } + this.context.isBindingElement = false; + } + } + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-left-hand-side-expressions + Parser.prototype.parseArguments = function () { + this.expect('('); + var args = []; + if (!this.match(')')) { + while (true) { + var expr = this.match('...') ? this.parseSpreadElement() : + this.isolateCoverGrammar(this.parseAssignmentExpression); + args.push(expr); + if (this.match(')')) { + break; + } + this.expectCommaSeparator(); + if (this.match(')')) { + break; + } + } + } + this.expect(')'); + return args; + }; + Parser.prototype.isIdentifierName = function (token) { + return token.type === 3 /* Identifier */ || + token.type === 4 /* Keyword */ || + token.type === 1 /* BooleanLiteral */ || + token.type === 5 /* NullLiteral */; + }; + Parser.prototype.parseIdentifierName = function () { + var node = this.createNode(); + var token = this.nextToken(); + if (!this.isIdentifierName(token)) { + this.throwUnexpectedToken(token); + } + return this.finalize(node, new Node.Identifier(token.value)); + }; + Parser.prototype.parseNewExpression = function () { + var node = this.createNode(); + var id = this.parseIdentifierName(); + assert_1.assert(id.name === 'new', 'New expression must start with `new`'); + var expr; + if (this.match('.')) { + this.nextToken(); + if (this.lookahead.type === 3 /* Identifier */ && this.context.inFunctionBody && this.lookahead.value === 'target') { + var property = this.parseIdentifierName(); + expr = new Node.MetaProperty(id, property); + } + else { + this.throwUnexpectedToken(this.lookahead); + } + } + else { + var callee = this.isolateCoverGrammar(this.parseLeftHandSideExpression); + var args = this.match('(') ? this.parseArguments() : []; + expr = new Node.NewExpression(callee, args); + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + } + return this.finalize(node, expr); + }; + Parser.prototype.parseAsyncArgument = function () { + var arg = this.parseAssignmentExpression(); + this.context.firstCoverInitializedNameError = null; + return arg; + }; + Parser.prototype.parseAsyncArguments = function () { + this.expect('('); + var args = []; + if (!this.match(')')) { + while (true) { + var expr = this.match('...') ? this.parseSpreadElement() : + this.isolateCoverGrammar(this.parseAsyncArgument); + args.push(expr); + if (this.match(')')) { + break; + } + this.expectCommaSeparator(); + if (this.match(')')) { + break; + } + } + } + this.expect(')'); + return args; + }; + Parser.prototype.parseLeftHandSideExpressionAllowCall = function () { + var startToken = this.lookahead; + var maybeAsync = this.matchContextualKeyword('async'); + var previousAllowIn = this.context.allowIn; + this.context.allowIn = true; + var expr; + if (this.matchKeyword('super') && this.context.inFunctionBody) { + expr = this.createNode(); + this.nextToken(); + expr = this.finalize(expr, new Node.Super()); + if (!this.match('(') && !this.match('.') && !this.match('[')) { + this.throwUnexpectedToken(this.lookahead); + } + } + else { + expr = this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression); + } + while (true) { + if (this.match('.')) { + this.context.isBindingElement = false; + this.context.isAssignmentTarget = true; + this.expect('.'); + var property = this.parseIdentifierName(); + expr = this.finalize(this.startNode(startToken), new Node.StaticMemberExpression(expr, property)); + } + else if (this.match('(')) { + var asyncArrow = maybeAsync && (startToken.lineNumber === this.lookahead.lineNumber); + this.context.isBindingElement = false; + this.context.isAssignmentTarget = false; + var args = asyncArrow ? this.parseAsyncArguments() : this.parseArguments(); + expr = this.finalize(this.startNode(startToken), new Node.CallExpression(expr, args)); + if (asyncArrow && this.match('=>')) { + for (var i = 0; i < args.length; ++i) { + this.reinterpretExpressionAsPattern(args[i]); + } + expr = { + type: ArrowParameterPlaceHolder, + params: args, + async: true + }; + } + } + else if (this.match('[')) { + this.context.isBindingElement = false; + this.context.isAssignmentTarget = true; + this.expect('['); + var property = this.isolateCoverGrammar(this.parseExpression); + this.expect(']'); + expr = this.finalize(this.startNode(startToken), new Node.ComputedMemberExpression(expr, property)); + } + else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) { + var quasi = this.parseTemplateLiteral(); + expr = this.finalize(this.startNode(startToken), new Node.TaggedTemplateExpression(expr, quasi)); + } + else { + break; + } + } + this.context.allowIn = previousAllowIn; + return expr; + }; + Parser.prototype.parseSuper = function () { + var node = this.createNode(); + this.expectKeyword('super'); + if (!this.match('[') && !this.match('.')) { + this.throwUnexpectedToken(this.lookahead); + } + return this.finalize(node, new Node.Super()); + }; + Parser.prototype.parseLeftHandSideExpression = function () { + assert_1.assert(this.context.allowIn, 'callee of new expression always allow in keyword.'); + var node = this.startNode(this.lookahead); + var expr = (this.matchKeyword('super') && this.context.inFunctionBody) ? this.parseSuper() : + this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression); + while (true) { + if (this.match('[')) { + this.context.isBindingElement = false; + this.context.isAssignmentTarget = true; + this.expect('['); + var property = this.isolateCoverGrammar(this.parseExpression); + this.expect(']'); + expr = this.finalize(node, new Node.ComputedMemberExpression(expr, property)); + } + else if (this.match('.')) { + this.context.isBindingElement = false; + this.context.isAssignmentTarget = true; + this.expect('.'); + var property = this.parseIdentifierName(); + expr = this.finalize(node, new Node.StaticMemberExpression(expr, property)); + } + else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) { + var quasi = this.parseTemplateLiteral(); + expr = this.finalize(node, new Node.TaggedTemplateExpression(expr, quasi)); + } + else { + break; + } + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-update-expressions + Parser.prototype.parseUpdateExpression = function () { + var expr; + var startToken = this.lookahead; + if (this.match('++') || this.match('--')) { + var node = this.startNode(startToken); + var token = this.nextToken(); + expr = this.inheritCoverGrammar(this.parseUnaryExpression); + if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) { + this.tolerateError(messages_1.Messages.StrictLHSPrefix); + } + if (!this.context.isAssignmentTarget) { + this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); + } + var prefix = true; + expr = this.finalize(node, new Node.UpdateExpression(token.value, expr, prefix)); + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + } + else { + expr = this.inheritCoverGrammar(this.parseLeftHandSideExpressionAllowCall); + if (!this.hasLineTerminator && this.lookahead.type === 7 /* Punctuator */) { + if (this.match('++') || this.match('--')) { + if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) { + this.tolerateError(messages_1.Messages.StrictLHSPostfix); + } + if (!this.context.isAssignmentTarget) { + this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); + } + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + var operator = this.nextToken().value; + var prefix = false; + expr = this.finalize(this.startNode(startToken), new Node.UpdateExpression(operator, expr, prefix)); + } + } + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-unary-operators + Parser.prototype.parseAwaitExpression = function () { + var node = this.createNode(); + this.nextToken(); + var argument = this.parseUnaryExpression(); + return this.finalize(node, new Node.AwaitExpression(argument)); + }; + Parser.prototype.parseUnaryExpression = function () { + var expr; + if (this.match('+') || this.match('-') || this.match('~') || this.match('!') || + this.matchKeyword('delete') || this.matchKeyword('void') || this.matchKeyword('typeof')) { + var node = this.startNode(this.lookahead); + var token = this.nextToken(); + expr = this.inheritCoverGrammar(this.parseUnaryExpression); + expr = this.finalize(node, new Node.UnaryExpression(token.value, expr)); + if (this.context.strict && expr.operator === 'delete' && expr.argument.type === syntax_1.Syntax.Identifier) { + this.tolerateError(messages_1.Messages.StrictDelete); + } + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + } + else if (this.context.await && this.matchContextualKeyword('await')) { + expr = this.parseAwaitExpression(); + } + else { + expr = this.parseUpdateExpression(); + } + return expr; + }; + Parser.prototype.parseExponentiationExpression = function () { + var startToken = this.lookahead; + var expr = this.inheritCoverGrammar(this.parseUnaryExpression); + if (expr.type !== syntax_1.Syntax.UnaryExpression && this.match('**')) { + this.nextToken(); + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + var left = expr; + var right = this.isolateCoverGrammar(this.parseExponentiationExpression); + expr = this.finalize(this.startNode(startToken), new Node.BinaryExpression('**', left, right)); + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-exp-operator + // https://tc39.github.io/ecma262/#sec-multiplicative-operators + // https://tc39.github.io/ecma262/#sec-additive-operators + // https://tc39.github.io/ecma262/#sec-bitwise-shift-operators + // https://tc39.github.io/ecma262/#sec-relational-operators + // https://tc39.github.io/ecma262/#sec-equality-operators + // https://tc39.github.io/ecma262/#sec-binary-bitwise-operators + // https://tc39.github.io/ecma262/#sec-binary-logical-operators + Parser.prototype.binaryPrecedence = function (token) { + var op = token.value; + var precedence; + if (token.type === 7 /* Punctuator */) { + precedence = this.operatorPrecedence[op] || 0; + } + else if (token.type === 4 /* Keyword */) { + precedence = (op === 'instanceof' || (this.context.allowIn && op === 'in')) ? 7 : 0; + } + else { + precedence = 0; + } + return precedence; + }; + Parser.prototype.parseBinaryExpression = function () { + var startToken = this.lookahead; + var expr = this.inheritCoverGrammar(this.parseExponentiationExpression); + var token = this.lookahead; + var prec = this.binaryPrecedence(token); + if (prec > 0) { + this.nextToken(); + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + var markers = [startToken, this.lookahead]; + var left = expr; + var right = this.isolateCoverGrammar(this.parseExponentiationExpression); + var stack = [left, token.value, right]; + var precedences = [prec]; + while (true) { + prec = this.binaryPrecedence(this.lookahead); + if (prec <= 0) { + break; + } + // Reduce: make a binary expression from the three topmost entries. + while ((stack.length > 2) && (prec <= precedences[precedences.length - 1])) { + right = stack.pop(); + var operator = stack.pop(); + precedences.pop(); + left = stack.pop(); + markers.pop(); + var node = this.startNode(markers[markers.length - 1]); + stack.push(this.finalize(node, new Node.BinaryExpression(operator, left, right))); + } + // Shift. + stack.push(this.nextToken().value); + precedences.push(prec); + markers.push(this.lookahead); + stack.push(this.isolateCoverGrammar(this.parseExponentiationExpression)); + } + // Final reduce to clean-up the stack. + var i = stack.length - 1; + expr = stack[i]; + var lastMarker = markers.pop(); + while (i > 1) { + var marker = markers.pop(); + var lastLineStart = lastMarker && lastMarker.lineStart; + var node = this.startNode(marker, lastLineStart); + var operator = stack[i - 1]; + expr = this.finalize(node, new Node.BinaryExpression(operator, stack[i - 2], expr)); + i -= 2; + lastMarker = marker; + } + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-conditional-operator + Parser.prototype.parseConditionalExpression = function () { + var startToken = this.lookahead; + var expr = this.inheritCoverGrammar(this.parseBinaryExpression); + if (this.match('?')) { + this.nextToken(); + var previousAllowIn = this.context.allowIn; + this.context.allowIn = true; + var consequent = this.isolateCoverGrammar(this.parseAssignmentExpression); + this.context.allowIn = previousAllowIn; + this.expect(':'); + var alternate = this.isolateCoverGrammar(this.parseAssignmentExpression); + expr = this.finalize(this.startNode(startToken), new Node.ConditionalExpression(expr, consequent, alternate)); + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-assignment-operators + Parser.prototype.checkPatternParam = function (options, param) { + switch (param.type) { + case syntax_1.Syntax.Identifier: + this.validateParam(options, param, param.name); + break; + case syntax_1.Syntax.RestElement: + this.checkPatternParam(options, param.argument); + break; + case syntax_1.Syntax.AssignmentPattern: + this.checkPatternParam(options, param.left); + break; + case syntax_1.Syntax.ArrayPattern: + for (var i = 0; i < param.elements.length; i++) { + if (param.elements[i] !== null) { + this.checkPatternParam(options, param.elements[i]); + } + } + break; + case syntax_1.Syntax.ObjectPattern: + for (var i = 0; i < param.properties.length; i++) { + this.checkPatternParam(options, param.properties[i].value); + } + break; + default: + break; + } + options.simple = options.simple && (param instanceof Node.Identifier); + }; + Parser.prototype.reinterpretAsCoverFormalsList = function (expr) { + var params = [expr]; + var options; + var asyncArrow = false; + switch (expr.type) { + case syntax_1.Syntax.Identifier: + break; + case ArrowParameterPlaceHolder: + params = expr.params; + asyncArrow = expr.async; + break; + default: + return null; + } + options = { + simple: true, + paramSet: {} + }; + for (var i = 0; i < params.length; ++i) { + var param = params[i]; + if (param.type === syntax_1.Syntax.AssignmentPattern) { + if (param.right.type === syntax_1.Syntax.YieldExpression) { + if (param.right.argument) { + this.throwUnexpectedToken(this.lookahead); + } + param.right.type = syntax_1.Syntax.Identifier; + param.right.name = 'yield'; + delete param.right.argument; + delete param.right.delegate; + } + } + else if (asyncArrow && param.type === syntax_1.Syntax.Identifier && param.name === 'await') { + this.throwUnexpectedToken(this.lookahead); + } + this.checkPatternParam(options, param); + params[i] = param; + } + if (this.context.strict || !this.context.allowYield) { + for (var i = 0; i < params.length; ++i) { + var param = params[i]; + if (param.type === syntax_1.Syntax.YieldExpression) { + this.throwUnexpectedToken(this.lookahead); + } + } + } + if (options.message === messages_1.Messages.StrictParamDupe) { + var token = this.context.strict ? options.stricted : options.firstRestricted; + this.throwUnexpectedToken(token, options.message); + } + return { + simple: options.simple, + params: params, + stricted: options.stricted, + firstRestricted: options.firstRestricted, + message: options.message + }; + }; + Parser.prototype.parseAssignmentExpression = function () { + var expr; + if (!this.context.allowYield && this.matchKeyword('yield')) { + expr = this.parseYieldExpression(); + } + else { + var startToken = this.lookahead; + var token = startToken; + expr = this.parseConditionalExpression(); + if (token.type === 3 /* Identifier */ && (token.lineNumber === this.lookahead.lineNumber) && token.value === 'async') { + if (this.lookahead.type === 3 /* Identifier */ || this.matchKeyword('yield')) { + var arg = this.parsePrimaryExpression(); + this.reinterpretExpressionAsPattern(arg); + expr = { + type: ArrowParameterPlaceHolder, + params: [arg], + async: true + }; + } + } + if (expr.type === ArrowParameterPlaceHolder || this.match('=>')) { + // https://tc39.github.io/ecma262/#sec-arrow-function-definitions + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + var isAsync = expr.async; + var list = this.reinterpretAsCoverFormalsList(expr); + if (list) { + if (this.hasLineTerminator) { + this.tolerateUnexpectedToken(this.lookahead); + } + this.context.firstCoverInitializedNameError = null; + var previousStrict = this.context.strict; + var previousAllowStrictDirective = this.context.allowStrictDirective; + this.context.allowStrictDirective = list.simple; + var previousAllowYield = this.context.allowYield; + var previousAwait = this.context.await; + this.context.allowYield = true; + this.context.await = isAsync; + var node = this.startNode(startToken); + this.expect('=>'); + var body = void 0; + if (this.match('{')) { + var previousAllowIn = this.context.allowIn; + this.context.allowIn = true; + body = this.parseFunctionSourceElements(); + this.context.allowIn = previousAllowIn; + } + else { + body = this.isolateCoverGrammar(this.parseAssignmentExpression); + } + var expression = body.type !== syntax_1.Syntax.BlockStatement; + if (this.context.strict && list.firstRestricted) { + this.throwUnexpectedToken(list.firstRestricted, list.message); + } + if (this.context.strict && list.stricted) { + this.tolerateUnexpectedToken(list.stricted, list.message); + } + expr = isAsync ? this.finalize(node, new Node.AsyncArrowFunctionExpression(list.params, body, expression)) : + this.finalize(node, new Node.ArrowFunctionExpression(list.params, body, expression)); + this.context.strict = previousStrict; + this.context.allowStrictDirective = previousAllowStrictDirective; + this.context.allowYield = previousAllowYield; + this.context.await = previousAwait; + } + } + else { + if (this.matchAssign()) { + if (!this.context.isAssignmentTarget) { + this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); + } + if (this.context.strict && expr.type === syntax_1.Syntax.Identifier) { + var id = expr; + if (this.scanner.isRestrictedWord(id.name)) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictLHSAssignment); + } + if (this.scanner.isStrictModeReservedWord(id.name)) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); + } + } + if (!this.match('=')) { + this.context.isAssignmentTarget = false; + this.context.isBindingElement = false; + } + else { + this.reinterpretExpressionAsPattern(expr); + } + token = this.nextToken(); + var operator = token.value; + var right = this.isolateCoverGrammar(this.parseAssignmentExpression); + expr = this.finalize(this.startNode(startToken), new Node.AssignmentExpression(operator, expr, right)); + this.context.firstCoverInitializedNameError = null; + } + } + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-comma-operator + Parser.prototype.parseExpression = function () { + var startToken = this.lookahead; + var expr = this.isolateCoverGrammar(this.parseAssignmentExpression); + if (this.match(',')) { + var expressions = []; + expressions.push(expr); + while (this.lookahead.type !== 2 /* EOF */) { + if (!this.match(',')) { + break; + } + this.nextToken(); + expressions.push(this.isolateCoverGrammar(this.parseAssignmentExpression)); + } + expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions)); + } + return expr; + }; + // https://tc39.github.io/ecma262/#sec-block + Parser.prototype.parseStatementListItem = function () { + var statement; + this.context.isAssignmentTarget = true; + this.context.isBindingElement = true; + if (this.lookahead.type === 4 /* Keyword */) { + switch (this.lookahead.value) { + case 'export': + if (!this.context.isModule) { + this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalExportDeclaration); + } + statement = this.parseExportDeclaration(); + break; + case 'import': + if (!this.context.isModule) { + this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalImportDeclaration); + } + statement = this.parseImportDeclaration(); + break; + case 'const': + statement = this.parseLexicalDeclaration({ inFor: false }); + break; + case 'function': + statement = this.parseFunctionDeclaration(); + break; + case 'class': + statement = this.parseClassDeclaration(); + break; + case 'let': + statement = this.isLexicalDeclaration() ? this.parseLexicalDeclaration({ inFor: false }) : this.parseStatement(); + break; + default: + statement = this.parseStatement(); + break; + } + } + else { + statement = this.parseStatement(); + } + return statement; + }; + Parser.prototype.parseBlock = function () { + var node = this.createNode(); + this.expect('{'); + var block = []; + while (true) { + if (this.match('}')) { + break; + } + block.push(this.parseStatementListItem()); + } + this.expect('}'); + return this.finalize(node, new Node.BlockStatement(block)); + }; + // https://tc39.github.io/ecma262/#sec-let-and-const-declarations + Parser.prototype.parseLexicalBinding = function (kind, options) { + var node = this.createNode(); + var params = []; + var id = this.parsePattern(params, kind); + if (this.context.strict && id.type === syntax_1.Syntax.Identifier) { + if (this.scanner.isRestrictedWord(id.name)) { + this.tolerateError(messages_1.Messages.StrictVarName); + } + } + var init = null; + if (kind === 'const') { + if (!this.matchKeyword('in') && !this.matchContextualKeyword('of')) { + if (this.match('=')) { + this.nextToken(); + init = this.isolateCoverGrammar(this.parseAssignmentExpression); + } + else { + this.throwError(messages_1.Messages.DeclarationMissingInitializer, 'const'); + } + } + } + else if ((!options.inFor && id.type !== syntax_1.Syntax.Identifier) || this.match('=')) { + this.expect('='); + init = this.isolateCoverGrammar(this.parseAssignmentExpression); + } + return this.finalize(node, new Node.VariableDeclarator(id, init)); + }; + Parser.prototype.parseBindingList = function (kind, options) { + var list = [this.parseLexicalBinding(kind, options)]; + while (this.match(',')) { + this.nextToken(); + list.push(this.parseLexicalBinding(kind, options)); + } + return list; + }; + Parser.prototype.isLexicalDeclaration = function () { + var state = this.scanner.saveState(); + this.scanner.scanComments(); + var next = this.scanner.lex(); + this.scanner.restoreState(state); + return (next.type === 3 /* Identifier */) || + (next.type === 7 /* Punctuator */ && next.value === '[') || + (next.type === 7 /* Punctuator */ && next.value === '{') || + (next.type === 4 /* Keyword */ && next.value === 'let') || + (next.type === 4 /* Keyword */ && next.value === 'yield'); + }; + Parser.prototype.parseLexicalDeclaration = function (options) { + var node = this.createNode(); + var kind = this.nextToken().value; + assert_1.assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const'); + var declarations = this.parseBindingList(kind, options); + this.consumeSemicolon(); + return this.finalize(node, new Node.VariableDeclaration(declarations, kind)); + }; + // https://tc39.github.io/ecma262/#sec-destructuring-binding-patterns + Parser.prototype.parseBindingRestElement = function (params, kind) { + var node = this.createNode(); + this.expect('...'); + var arg = this.parsePattern(params, kind); + return this.finalize(node, new Node.RestElement(arg)); + }; + Parser.prototype.parseArrayPattern = function (params, kind) { + var node = this.createNode(); + this.expect('['); + var elements = []; + while (!this.match(']')) { + if (this.match(',')) { + this.nextToken(); + elements.push(null); + } + else { + if (this.match('...')) { + elements.push(this.parseBindingRestElement(params, kind)); + break; + } + else { + elements.push(this.parsePatternWithDefault(params, kind)); + } + if (!this.match(']')) { + this.expect(','); + } + } + } + this.expect(']'); + return this.finalize(node, new Node.ArrayPattern(elements)); + }; + Parser.prototype.parsePropertyPattern = function (params, kind) { + var node = this.createNode(); + var computed = false; + var shorthand = false; + var method = false; + var key; + var value; + if (this.lookahead.type === 3 /* Identifier */) { + var keyToken = this.lookahead; + key = this.parseVariableIdentifier(); + var init = this.finalize(node, new Node.Identifier(keyToken.value)); + if (this.match('=')) { + params.push(keyToken); + shorthand = true; + this.nextToken(); + var expr = this.parseAssignmentExpression(); + value = this.finalize(this.startNode(keyToken), new Node.AssignmentPattern(init, expr)); + } + else if (!this.match(':')) { + params.push(keyToken); + shorthand = true; + value = init; + } + else { + this.expect(':'); + value = this.parsePatternWithDefault(params, kind); + } + } + else { + computed = this.match('['); + key = this.parseObjectPropertyKey(); + this.expect(':'); + value = this.parsePatternWithDefault(params, kind); + } + return this.finalize(node, new Node.Property('init', key, computed, value, method, shorthand)); + }; + Parser.prototype.parseObjectPattern = function (params, kind) { + var node = this.createNode(); + var properties = []; + this.expect('{'); + while (!this.match('}')) { + properties.push(this.parsePropertyPattern(params, kind)); + if (!this.match('}')) { + this.expect(','); + } + } + this.expect('}'); + return this.finalize(node, new Node.ObjectPattern(properties)); + }; + Parser.prototype.parsePattern = function (params, kind) { + var pattern; + if (this.match('[')) { + pattern = this.parseArrayPattern(params, kind); + } + else if (this.match('{')) { + pattern = this.parseObjectPattern(params, kind); + } + else { + if (this.matchKeyword('let') && (kind === 'const' || kind === 'let')) { + this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.LetInLexicalBinding); + } + params.push(this.lookahead); + pattern = this.parseVariableIdentifier(kind); + } + return pattern; + }; + Parser.prototype.parsePatternWithDefault = function (params, kind) { + var startToken = this.lookahead; + var pattern = this.parsePattern(params, kind); + if (this.match('=')) { + this.nextToken(); + var previousAllowYield = this.context.allowYield; + this.context.allowYield = true; + var right = this.isolateCoverGrammar(this.parseAssignmentExpression); + this.context.allowYield = previousAllowYield; + pattern = this.finalize(this.startNode(startToken), new Node.AssignmentPattern(pattern, right)); + } + return pattern; + }; + // https://tc39.github.io/ecma262/#sec-variable-statement + Parser.prototype.parseVariableIdentifier = function (kind) { + var node = this.createNode(); + var token = this.nextToken(); + if (token.type === 4 /* Keyword */ && token.value === 'yield') { + if (this.context.strict) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); + } + else if (!this.context.allowYield) { + this.throwUnexpectedToken(token); + } + } + else if (token.type !== 3 /* Identifier */) { + if (this.context.strict && token.type === 4 /* Keyword */ && this.scanner.isStrictModeReservedWord(token.value)) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); + } + else { + if (this.context.strict || token.value !== 'let' || kind !== 'var') { + this.throwUnexpectedToken(token); + } + } + } + else if ((this.context.isModule || this.context.await) && token.type === 3 /* Identifier */ && token.value === 'await') { + this.tolerateUnexpectedToken(token); + } + return this.finalize(node, new Node.Identifier(token.value)); + }; + Parser.prototype.parseVariableDeclaration = function (options) { + var node = this.createNode(); + var params = []; + var id = this.parsePattern(params, 'var'); + if (this.context.strict && id.type === syntax_1.Syntax.Identifier) { + if (this.scanner.isRestrictedWord(id.name)) { + this.tolerateError(messages_1.Messages.StrictVarName); + } + } + var init = null; + if (this.match('=')) { + this.nextToken(); + init = this.isolateCoverGrammar(this.parseAssignmentExpression); + } + else if (id.type !== syntax_1.Syntax.Identifier && !options.inFor) { + this.expect('='); + } + return this.finalize(node, new Node.VariableDeclarator(id, init)); + }; + Parser.prototype.parseVariableDeclarationList = function (options) { + var opt = { inFor: options.inFor }; + var list = []; + list.push(this.parseVariableDeclaration(opt)); + while (this.match(',')) { + this.nextToken(); + list.push(this.parseVariableDeclaration(opt)); + } + return list; + }; + Parser.prototype.parseVariableStatement = function () { + var node = this.createNode(); + this.expectKeyword('var'); + var declarations = this.parseVariableDeclarationList({ inFor: false }); + this.consumeSemicolon(); + return this.finalize(node, new Node.VariableDeclaration(declarations, 'var')); + }; + // https://tc39.github.io/ecma262/#sec-empty-statement + Parser.prototype.parseEmptyStatement = function () { + var node = this.createNode(); + this.expect(';'); + return this.finalize(node, new Node.EmptyStatement()); + }; + // https://tc39.github.io/ecma262/#sec-expression-statement + Parser.prototype.parseExpressionStatement = function () { + var node = this.createNode(); + var expr = this.parseExpression(); + this.consumeSemicolon(); + return this.finalize(node, new Node.ExpressionStatement(expr)); + }; + // https://tc39.github.io/ecma262/#sec-if-statement + Parser.prototype.parseIfClause = function () { + if (this.context.strict && this.matchKeyword('function')) { + this.tolerateError(messages_1.Messages.StrictFunction); + } + return this.parseStatement(); + }; + Parser.prototype.parseIfStatement = function () { + var node = this.createNode(); + var consequent; + var alternate = null; + this.expectKeyword('if'); + this.expect('('); + var test = this.parseExpression(); + if (!this.match(')') && this.config.tolerant) { + this.tolerateUnexpectedToken(this.nextToken()); + consequent = this.finalize(this.createNode(), new Node.EmptyStatement()); + } + else { + this.expect(')'); + consequent = this.parseIfClause(); + if (this.matchKeyword('else')) { + this.nextToken(); + alternate = this.parseIfClause(); + } + } + return this.finalize(node, new Node.IfStatement(test, consequent, alternate)); + }; + // https://tc39.github.io/ecma262/#sec-do-while-statement + Parser.prototype.parseDoWhileStatement = function () { + var node = this.createNode(); + this.expectKeyword('do'); + var previousInIteration = this.context.inIteration; + this.context.inIteration = true; + var body = this.parseStatement(); + this.context.inIteration = previousInIteration; + this.expectKeyword('while'); + this.expect('('); + var test = this.parseExpression(); + if (!this.match(')') && this.config.tolerant) { + this.tolerateUnexpectedToken(this.nextToken()); + } + else { + this.expect(')'); + if (this.match(';')) { + this.nextToken(); + } + } + return this.finalize(node, new Node.DoWhileStatement(body, test)); + }; + // https://tc39.github.io/ecma262/#sec-while-statement + Parser.prototype.parseWhileStatement = function () { + var node = this.createNode(); + var body; + this.expectKeyword('while'); + this.expect('('); + var test = this.parseExpression(); + if (!this.match(')') && this.config.tolerant) { + this.tolerateUnexpectedToken(this.nextToken()); + body = this.finalize(this.createNode(), new Node.EmptyStatement()); + } + else { + this.expect(')'); + var previousInIteration = this.context.inIteration; + this.context.inIteration = true; + body = this.parseStatement(); + this.context.inIteration = previousInIteration; + } + return this.finalize(node, new Node.WhileStatement(test, body)); + }; + // https://tc39.github.io/ecma262/#sec-for-statement + // https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements + Parser.prototype.parseForStatement = function () { + var init = null; + var test = null; + var update = null; + var forIn = true; + var left, right; + var node = this.createNode(); + this.expectKeyword('for'); + this.expect('('); + if (this.match(';')) { + this.nextToken(); + } + else { + if (this.matchKeyword('var')) { + init = this.createNode(); + this.nextToken(); + var previousAllowIn = this.context.allowIn; + this.context.allowIn = false; + var declarations = this.parseVariableDeclarationList({ inFor: true }); + this.context.allowIn = previousAllowIn; + if (declarations.length === 1 && this.matchKeyword('in')) { + var decl = declarations[0]; + if (decl.init && (decl.id.type === syntax_1.Syntax.ArrayPattern || decl.id.type === syntax_1.Syntax.ObjectPattern || this.context.strict)) { + this.tolerateError(messages_1.Messages.ForInOfLoopInitializer, 'for-in'); + } + init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); + this.nextToken(); + left = init; + right = this.parseExpression(); + init = null; + } + else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) { + init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); + this.nextToken(); + left = init; + right = this.parseAssignmentExpression(); + init = null; + forIn = false; + } + else { + init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); + this.expect(';'); + } + } + else if (this.matchKeyword('const') || this.matchKeyword('let')) { + init = this.createNode(); + var kind = this.nextToken().value; + if (!this.context.strict && this.lookahead.value === 'in') { + init = this.finalize(init, new Node.Identifier(kind)); + this.nextToken(); + left = init; + right = this.parseExpression(); + init = null; + } + else { + var previousAllowIn = this.context.allowIn; + this.context.allowIn = false; + var declarations = this.parseBindingList(kind, { inFor: true }); + this.context.allowIn = previousAllowIn; + if (declarations.length === 1 && declarations[0].init === null && this.matchKeyword('in')) { + init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); + this.nextToken(); + left = init; + right = this.parseExpression(); + init = null; + } + else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) { + init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); + this.nextToken(); + left = init; + right = this.parseAssignmentExpression(); + init = null; + forIn = false; + } + else { + this.consumeSemicolon(); + init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); + } + } + } + else { + var initStartToken = this.lookahead; + var previousAllowIn = this.context.allowIn; + this.context.allowIn = false; + init = this.inheritCoverGrammar(this.parseAssignmentExpression); + this.context.allowIn = previousAllowIn; + if (this.matchKeyword('in')) { + if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) { + this.tolerateError(messages_1.Messages.InvalidLHSInForIn); + } + this.nextToken(); + this.reinterpretExpressionAsPattern(init); + left = init; + right = this.parseExpression(); + init = null; + } + else if (this.matchContextualKeyword('of')) { + if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) { + this.tolerateError(messages_1.Messages.InvalidLHSInForLoop); + } + this.nextToken(); + this.reinterpretExpressionAsPattern(init); + left = init; + right = this.parseAssignmentExpression(); + init = null; + forIn = false; + } + else { + if (this.match(',')) { + var initSeq = [init]; + while (this.match(',')) { + this.nextToken(); + initSeq.push(this.isolateCoverGrammar(this.parseAssignmentExpression)); + } + init = this.finalize(this.startNode(initStartToken), new Node.SequenceExpression(initSeq)); + } + this.expect(';'); + } + } + } + if (typeof left === 'undefined') { + if (!this.match(';')) { + test = this.parseExpression(); + } + this.expect(';'); + if (!this.match(')')) { + update = this.parseExpression(); + } + } + var body; + if (!this.match(')') && this.config.tolerant) { + this.tolerateUnexpectedToken(this.nextToken()); + body = this.finalize(this.createNode(), new Node.EmptyStatement()); + } + else { + this.expect(')'); + var previousInIteration = this.context.inIteration; + this.context.inIteration = true; + body = this.isolateCoverGrammar(this.parseStatement); + this.context.inIteration = previousInIteration; + } + return (typeof left === 'undefined') ? + this.finalize(node, new Node.ForStatement(init, test, update, body)) : + forIn ? this.finalize(node, new Node.ForInStatement(left, right, body)) : + this.finalize(node, new Node.ForOfStatement(left, right, body)); + }; + // https://tc39.github.io/ecma262/#sec-continue-statement + Parser.prototype.parseContinueStatement = function () { + var node = this.createNode(); + this.expectKeyword('continue'); + var label = null; + if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) { + var id = this.parseVariableIdentifier(); + label = id; + var key = '$' + id.name; + if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { + this.throwError(messages_1.Messages.UnknownLabel, id.name); + } + } + this.consumeSemicolon(); + if (label === null && !this.context.inIteration) { + this.throwError(messages_1.Messages.IllegalContinue); + } + return this.finalize(node, new Node.ContinueStatement(label)); + }; + // https://tc39.github.io/ecma262/#sec-break-statement + Parser.prototype.parseBreakStatement = function () { + var node = this.createNode(); + this.expectKeyword('break'); + var label = null; + if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) { + var id = this.parseVariableIdentifier(); + var key = '$' + id.name; + if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { + this.throwError(messages_1.Messages.UnknownLabel, id.name); + } + label = id; + } + this.consumeSemicolon(); + if (label === null && !this.context.inIteration && !this.context.inSwitch) { + this.throwError(messages_1.Messages.IllegalBreak); + } + return this.finalize(node, new Node.BreakStatement(label)); + }; + // https://tc39.github.io/ecma262/#sec-return-statement + Parser.prototype.parseReturnStatement = function () { + if (!this.context.inFunctionBody) { + this.tolerateError(messages_1.Messages.IllegalReturn); + } + var node = this.createNode(); + this.expectKeyword('return'); + var hasArgument = (!this.match(';') && !this.match('}') && + !this.hasLineTerminator && this.lookahead.type !== 2 /* EOF */) || + this.lookahead.type === 8 /* StringLiteral */ || + this.lookahead.type === 10 /* Template */; + var argument = hasArgument ? this.parseExpression() : null; + this.consumeSemicolon(); + return this.finalize(node, new Node.ReturnStatement(argument)); + }; + // https://tc39.github.io/ecma262/#sec-with-statement + Parser.prototype.parseWithStatement = function () { + if (this.context.strict) { + this.tolerateError(messages_1.Messages.StrictModeWith); + } + var node = this.createNode(); + var body; + this.expectKeyword('with'); + this.expect('('); + var object = this.parseExpression(); + if (!this.match(')') && this.config.tolerant) { + this.tolerateUnexpectedToken(this.nextToken()); + body = this.finalize(this.createNode(), new Node.EmptyStatement()); + } + else { + this.expect(')'); + body = this.parseStatement(); + } + return this.finalize(node, new Node.WithStatement(object, body)); + }; + // https://tc39.github.io/ecma262/#sec-switch-statement + Parser.prototype.parseSwitchCase = function () { + var node = this.createNode(); + var test; + if (this.matchKeyword('default')) { + this.nextToken(); + test = null; + } + else { + this.expectKeyword('case'); + test = this.parseExpression(); + } + this.expect(':'); + var consequent = []; + while (true) { + if (this.match('}') || this.matchKeyword('default') || this.matchKeyword('case')) { + break; + } + consequent.push(this.parseStatementListItem()); + } + return this.finalize(node, new Node.SwitchCase(test, consequent)); + }; + Parser.prototype.parseSwitchStatement = function () { + var node = this.createNode(); + this.expectKeyword('switch'); + this.expect('('); + var discriminant = this.parseExpression(); + this.expect(')'); + var previousInSwitch = this.context.inSwitch; + this.context.inSwitch = true; + var cases = []; + var defaultFound = false; + this.expect('{'); + while (true) { + if (this.match('}')) { + break; + } + var clause = this.parseSwitchCase(); + if (clause.test === null) { + if (defaultFound) { + this.throwError(messages_1.Messages.MultipleDefaultsInSwitch); + } + defaultFound = true; + } + cases.push(clause); + } + this.expect('}'); + this.context.inSwitch = previousInSwitch; + return this.finalize(node, new Node.SwitchStatement(discriminant, cases)); + }; + // https://tc39.github.io/ecma262/#sec-labelled-statements + Parser.prototype.parseLabelledStatement = function () { + var node = this.createNode(); + var expr = this.parseExpression(); + var statement; + if ((expr.type === syntax_1.Syntax.Identifier) && this.match(':')) { + this.nextToken(); + var id = expr; + var key = '$' + id.name; + if (Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { + this.throwError(messages_1.Messages.Redeclaration, 'Label', id.name); + } + this.context.labelSet[key] = true; + var body = void 0; + if (this.matchKeyword('class')) { + this.tolerateUnexpectedToken(this.lookahead); + body = this.parseClassDeclaration(); + } + else if (this.matchKeyword('function')) { + var token = this.lookahead; + var declaration = this.parseFunctionDeclaration(); + if (this.context.strict) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunction); + } + else if (declaration.generator) { + this.tolerateUnexpectedToken(token, messages_1.Messages.GeneratorInLegacyContext); + } + body = declaration; + } + else { + body = this.parseStatement(); + } + delete this.context.labelSet[key]; + statement = new Node.LabeledStatement(id, body); + } + else { + this.consumeSemicolon(); + statement = new Node.ExpressionStatement(expr); + } + return this.finalize(node, statement); + }; + // https://tc39.github.io/ecma262/#sec-throw-statement + Parser.prototype.parseThrowStatement = function () { + var node = this.createNode(); + this.expectKeyword('throw'); + if (this.hasLineTerminator) { + this.throwError(messages_1.Messages.NewlineAfterThrow); + } + var argument = this.parseExpression(); + this.consumeSemicolon(); + return this.finalize(node, new Node.ThrowStatement(argument)); + }; + // https://tc39.github.io/ecma262/#sec-try-statement + Parser.prototype.parseCatchClause = function () { + var node = this.createNode(); + this.expectKeyword('catch'); + this.expect('('); + if (this.match(')')) { + this.throwUnexpectedToken(this.lookahead); + } + var params = []; + var param = this.parsePattern(params); + var paramMap = {}; + for (var i = 0; i < params.length; i++) { + var key = '$' + params[i].value; + if (Object.prototype.hasOwnProperty.call(paramMap, key)) { + this.tolerateError(messages_1.Messages.DuplicateBinding, params[i].value); + } + paramMap[key] = true; + } + if (this.context.strict && param.type === syntax_1.Syntax.Identifier) { + if (this.scanner.isRestrictedWord(param.name)) { + this.tolerateError(messages_1.Messages.StrictCatchVariable); + } + } + this.expect(')'); + var body = this.parseBlock(); + return this.finalize(node, new Node.CatchClause(param, body)); + }; + Parser.prototype.parseFinallyClause = function () { + this.expectKeyword('finally'); + return this.parseBlock(); + }; + Parser.prototype.parseTryStatement = function () { + var node = this.createNode(); + this.expectKeyword('try'); + var block = this.parseBlock(); + var handler = this.matchKeyword('catch') ? this.parseCatchClause() : null; + var finalizer = this.matchKeyword('finally') ? this.parseFinallyClause() : null; + if (!handler && !finalizer) { + this.throwError(messages_1.Messages.NoCatchOrFinally); + } + return this.finalize(node, new Node.TryStatement(block, handler, finalizer)); + }; + // https://tc39.github.io/ecma262/#sec-debugger-statement + Parser.prototype.parseDebuggerStatement = function () { + var node = this.createNode(); + this.expectKeyword('debugger'); + this.consumeSemicolon(); + return this.finalize(node, new Node.DebuggerStatement()); + }; + // https://tc39.github.io/ecma262/#sec-ecmascript-language-statements-and-declarations + Parser.prototype.parseStatement = function () { + var statement; + switch (this.lookahead.type) { + case 1 /* BooleanLiteral */: + case 5 /* NullLiteral */: + case 6 /* NumericLiteral */: + case 8 /* StringLiteral */: + case 10 /* Template */: + case 9 /* RegularExpression */: + statement = this.parseExpressionStatement(); + break; + case 7 /* Punctuator */: + var value = this.lookahead.value; + if (value === '{') { + statement = this.parseBlock(); + } + else if (value === '(') { + statement = this.parseExpressionStatement(); + } + else if (value === ';') { + statement = this.parseEmptyStatement(); + } + else { + statement = this.parseExpressionStatement(); + } + break; + case 3 /* Identifier */: + statement = this.matchAsyncFunction() ? this.parseFunctionDeclaration() : this.parseLabelledStatement(); + break; + case 4 /* Keyword */: + switch (this.lookahead.value) { + case 'break': + statement = this.parseBreakStatement(); + break; + case 'continue': + statement = this.parseContinueStatement(); + break; + case 'debugger': + statement = this.parseDebuggerStatement(); + break; + case 'do': + statement = this.parseDoWhileStatement(); + break; + case 'for': + statement = this.parseForStatement(); + break; + case 'function': + statement = this.parseFunctionDeclaration(); + break; + case 'if': + statement = this.parseIfStatement(); + break; + case 'return': + statement = this.parseReturnStatement(); + break; + case 'switch': + statement = this.parseSwitchStatement(); + break; + case 'throw': + statement = this.parseThrowStatement(); + break; + case 'try': + statement = this.parseTryStatement(); + break; + case 'var': + statement = this.parseVariableStatement(); + break; + case 'while': + statement = this.parseWhileStatement(); + break; + case 'with': + statement = this.parseWithStatement(); + break; + default: + statement = this.parseExpressionStatement(); + break; + } + break; + default: + statement = this.throwUnexpectedToken(this.lookahead); + } + return statement; + }; + // https://tc39.github.io/ecma262/#sec-function-definitions + Parser.prototype.parseFunctionSourceElements = function () { + var node = this.createNode(); + this.expect('{'); + var body = this.parseDirectivePrologues(); + var previousLabelSet = this.context.labelSet; + var previousInIteration = this.context.inIteration; + var previousInSwitch = this.context.inSwitch; + var previousInFunctionBody = this.context.inFunctionBody; + this.context.labelSet = {}; + this.context.inIteration = false; + this.context.inSwitch = false; + this.context.inFunctionBody = true; + while (this.lookahead.type !== 2 /* EOF */) { + if (this.match('}')) { + break; + } + body.push(this.parseStatementListItem()); + } + this.expect('}'); + this.context.labelSet = previousLabelSet; + this.context.inIteration = previousInIteration; + this.context.inSwitch = previousInSwitch; + this.context.inFunctionBody = previousInFunctionBody; + return this.finalize(node, new Node.BlockStatement(body)); + }; + Parser.prototype.validateParam = function (options, param, name) { + var key = '$' + name; + if (this.context.strict) { + if (this.scanner.isRestrictedWord(name)) { + options.stricted = param; + options.message = messages_1.Messages.StrictParamName; + } + if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { + options.stricted = param; + options.message = messages_1.Messages.StrictParamDupe; + } + } + else if (!options.firstRestricted) { + if (this.scanner.isRestrictedWord(name)) { + options.firstRestricted = param; + options.message = messages_1.Messages.StrictParamName; + } + else if (this.scanner.isStrictModeReservedWord(name)) { + options.firstRestricted = param; + options.message = messages_1.Messages.StrictReservedWord; + } + else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { + options.stricted = param; + options.message = messages_1.Messages.StrictParamDupe; + } + } + /* istanbul ignore next */ + if (typeof Object.defineProperty === 'function') { + Object.defineProperty(options.paramSet, key, { value: true, enumerable: true, writable: true, configurable: true }); + } + else { + options.paramSet[key] = true; + } + }; + Parser.prototype.parseRestElement = function (params) { + var node = this.createNode(); + this.expect('...'); + var arg = this.parsePattern(params); + if (this.match('=')) { + this.throwError(messages_1.Messages.DefaultRestParameter); + } + if (!this.match(')')) { + this.throwError(messages_1.Messages.ParameterAfterRestParameter); + } + return this.finalize(node, new Node.RestElement(arg)); + }; + Parser.prototype.parseFormalParameter = function (options) { + var params = []; + var param = this.match('...') ? this.parseRestElement(params) : this.parsePatternWithDefault(params); + for (var i = 0; i < params.length; i++) { + this.validateParam(options, params[i], params[i].value); + } + options.simple = options.simple && (param instanceof Node.Identifier); + options.params.push(param); + }; + Parser.prototype.parseFormalParameters = function (firstRestricted) { + var options; + options = { + simple: true, + params: [], + firstRestricted: firstRestricted + }; + this.expect('('); + if (!this.match(')')) { + options.paramSet = {}; + while (this.lookahead.type !== 2 /* EOF */) { + this.parseFormalParameter(options); + if (this.match(')')) { + break; + } + this.expect(','); + if (this.match(')')) { + break; + } + } + } + this.expect(')'); + return { + simple: options.simple, + params: options.params, + stricted: options.stricted, + firstRestricted: options.firstRestricted, + message: options.message + }; + }; + Parser.prototype.matchAsyncFunction = function () { + var match = this.matchContextualKeyword('async'); + if (match) { + var state = this.scanner.saveState(); + this.scanner.scanComments(); + var next = this.scanner.lex(); + this.scanner.restoreState(state); + match = (state.lineNumber === next.lineNumber) && (next.type === 4 /* Keyword */) && (next.value === 'function'); + } + return match; + }; + Parser.prototype.parseFunctionDeclaration = function (identifierIsOptional) { + var node = this.createNode(); + var isAsync = this.matchContextualKeyword('async'); + if (isAsync) { + this.nextToken(); + } + this.expectKeyword('function'); + var isGenerator = isAsync ? false : this.match('*'); + if (isGenerator) { + this.nextToken(); + } + var message; + var id = null; + var firstRestricted = null; + if (!identifierIsOptional || !this.match('(')) { + var token = this.lookahead; + id = this.parseVariableIdentifier(); + if (this.context.strict) { + if (this.scanner.isRestrictedWord(token.value)) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName); + } + } + else { + if (this.scanner.isRestrictedWord(token.value)) { + firstRestricted = token; + message = messages_1.Messages.StrictFunctionName; + } + else if (this.scanner.isStrictModeReservedWord(token.value)) { + firstRestricted = token; + message = messages_1.Messages.StrictReservedWord; + } + } + } + var previousAllowAwait = this.context.await; + var previousAllowYield = this.context.allowYield; + this.context.await = isAsync; + this.context.allowYield = !isGenerator; + var formalParameters = this.parseFormalParameters(firstRestricted); + var params = formalParameters.params; + var stricted = formalParameters.stricted; + firstRestricted = formalParameters.firstRestricted; + if (formalParameters.message) { + message = formalParameters.message; + } + var previousStrict = this.context.strict; + var previousAllowStrictDirective = this.context.allowStrictDirective; + this.context.allowStrictDirective = formalParameters.simple; + var body = this.parseFunctionSourceElements(); + if (this.context.strict && firstRestricted) { + this.throwUnexpectedToken(firstRestricted, message); + } + if (this.context.strict && stricted) { + this.tolerateUnexpectedToken(stricted, message); + } + this.context.strict = previousStrict; + this.context.allowStrictDirective = previousAllowStrictDirective; + this.context.await = previousAllowAwait; + this.context.allowYield = previousAllowYield; + return isAsync ? this.finalize(node, new Node.AsyncFunctionDeclaration(id, params, body)) : + this.finalize(node, new Node.FunctionDeclaration(id, params, body, isGenerator)); + }; + Parser.prototype.parseFunctionExpression = function () { + var node = this.createNode(); + var isAsync = this.matchContextualKeyword('async'); + if (isAsync) { + this.nextToken(); + } + this.expectKeyword('function'); + var isGenerator = isAsync ? false : this.match('*'); + if (isGenerator) { + this.nextToken(); + } + var message; + var id = null; + var firstRestricted; + var previousAllowAwait = this.context.await; + var previousAllowYield = this.context.allowYield; + this.context.await = isAsync; + this.context.allowYield = !isGenerator; + if (!this.match('(')) { + var token = this.lookahead; + id = (!this.context.strict && !isGenerator && this.matchKeyword('yield')) ? this.parseIdentifierName() : this.parseVariableIdentifier(); + if (this.context.strict) { + if (this.scanner.isRestrictedWord(token.value)) { + this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName); + } + } + else { + if (this.scanner.isRestrictedWord(token.value)) { + firstRestricted = token; + message = messages_1.Messages.StrictFunctionName; + } + else if (this.scanner.isStrictModeReservedWord(token.value)) { + firstRestricted = token; + message = messages_1.Messages.StrictReservedWord; + } + } + } + var formalParameters = this.parseFormalParameters(firstRestricted); + var params = formalParameters.params; + var stricted = formalParameters.stricted; + firstRestricted = formalParameters.firstRestricted; + if (formalParameters.message) { + message = formalParameters.message; + } + var previousStrict = this.context.strict; + var previousAllowStrictDirective = this.context.allowStrictDirective; + this.context.allowStrictDirective = formalParameters.simple; + var body = this.parseFunctionSourceElements(); + if (this.context.strict && firstRestricted) { + this.throwUnexpectedToken(firstRestricted, message); + } + if (this.context.strict && stricted) { + this.tolerateUnexpectedToken(stricted, message); + } + this.context.strict = previousStrict; + this.context.allowStrictDirective = previousAllowStrictDirective; + this.context.await = previousAllowAwait; + this.context.allowYield = previousAllowYield; + return isAsync ? this.finalize(node, new Node.AsyncFunctionExpression(id, params, body)) : + this.finalize(node, new Node.FunctionExpression(id, params, body, isGenerator)); + }; + // https://tc39.github.io/ecma262/#sec-directive-prologues-and-the-use-strict-directive + Parser.prototype.parseDirective = function () { + var token = this.lookahead; + var node = this.createNode(); + var expr = this.parseExpression(); + var directive = (expr.type === syntax_1.Syntax.Literal) ? this.getTokenRaw(token).slice(1, -1) : null; + this.consumeSemicolon(); + return this.finalize(node, directive ? new Node.Directive(expr, directive) : new Node.ExpressionStatement(expr)); + }; + Parser.prototype.parseDirectivePrologues = function () { + var firstRestricted = null; + var body = []; + while (true) { + var token = this.lookahead; + if (token.type !== 8 /* StringLiteral */) { + break; + } + var statement = this.parseDirective(); + body.push(statement); + var directive = statement.directive; + if (typeof directive !== 'string') { + break; + } + if (directive === 'use strict') { + this.context.strict = true; + if (firstRestricted) { + this.tolerateUnexpectedToken(firstRestricted, messages_1.Messages.StrictOctalLiteral); + } + if (!this.context.allowStrictDirective) { + this.tolerateUnexpectedToken(token, messages_1.Messages.IllegalLanguageModeDirective); + } + } + else { + if (!firstRestricted && token.octal) { + firstRestricted = token; + } + } + } + return body; + }; + // https://tc39.github.io/ecma262/#sec-method-definitions + Parser.prototype.qualifiedPropertyName = function (token) { + switch (token.type) { + case 3 /* Identifier */: + case 8 /* StringLiteral */: + case 1 /* BooleanLiteral */: + case 5 /* NullLiteral */: + case 6 /* NumericLiteral */: + case 4 /* Keyword */: + return true; + case 7 /* Punctuator */: + return token.value === '['; + default: + break; + } + return false; + }; + Parser.prototype.parseGetterMethod = function () { + var node = this.createNode(); + var isGenerator = false; + var previousAllowYield = this.context.allowYield; + this.context.allowYield = !isGenerator; + var formalParameters = this.parseFormalParameters(); + if (formalParameters.params.length > 0) { + this.tolerateError(messages_1.Messages.BadGetterArity); + } + var method = this.parsePropertyMethod(formalParameters); + this.context.allowYield = previousAllowYield; + return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator)); + }; + Parser.prototype.parseSetterMethod = function () { + var node = this.createNode(); + var isGenerator = false; + var previousAllowYield = this.context.allowYield; + this.context.allowYield = !isGenerator; + var formalParameters = this.parseFormalParameters(); + if (formalParameters.params.length !== 1) { + this.tolerateError(messages_1.Messages.BadSetterArity); + } + else if (formalParameters.params[0] instanceof Node.RestElement) { + this.tolerateError(messages_1.Messages.BadSetterRestParameter); + } + var method = this.parsePropertyMethod(formalParameters); + this.context.allowYield = previousAllowYield; + return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator)); + }; + Parser.prototype.parseGeneratorMethod = function () { + var node = this.createNode(); + var isGenerator = true; + var previousAllowYield = this.context.allowYield; + this.context.allowYield = true; + var params = this.parseFormalParameters(); + this.context.allowYield = false; + var method = this.parsePropertyMethod(params); + this.context.allowYield = previousAllowYield; + return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator)); + }; + // https://tc39.github.io/ecma262/#sec-generator-function-definitions + Parser.prototype.isStartOfExpression = function () { + var start = true; + var value = this.lookahead.value; + switch (this.lookahead.type) { + case 7 /* Punctuator */: + start = (value === '[') || (value === '(') || (value === '{') || + (value === '+') || (value === '-') || + (value === '!') || (value === '~') || + (value === '++') || (value === '--') || + (value === '/') || (value === '/='); // regular expression literal + break; + case 4 /* Keyword */: + start = (value === 'class') || (value === 'delete') || + (value === 'function') || (value === 'let') || (value === 'new') || + (value === 'super') || (value === 'this') || (value === 'typeof') || + (value === 'void') || (value === 'yield'); + break; + default: + break; + } + return start; + }; + Parser.prototype.parseYieldExpression = function () { + var node = this.createNode(); + this.expectKeyword('yield'); + var argument = null; + var delegate = false; + if (!this.hasLineTerminator) { + var previousAllowYield = this.context.allowYield; + this.context.allowYield = false; + delegate = this.match('*'); + if (delegate) { + this.nextToken(); + argument = this.parseAssignmentExpression(); + } + else if (this.isStartOfExpression()) { + argument = this.parseAssignmentExpression(); + } + this.context.allowYield = previousAllowYield; + } + return this.finalize(node, new Node.YieldExpression(argument, delegate)); + }; + // https://tc39.github.io/ecma262/#sec-class-definitions + Parser.prototype.parseClassElement = function (hasConstructor) { + var token = this.lookahead; + var node = this.createNode(); + var kind = ''; + var key = null; + var value = null; + var computed = false; + var method = false; + var isStatic = false; + var isAsync = false; + if (this.match('*')) { + this.nextToken(); + } + else { + computed = this.match('['); + key = this.parseObjectPropertyKey(); + var id = key; + if (id.name === 'static' && (this.qualifiedPropertyName(this.lookahead) || this.match('*'))) { + token = this.lookahead; + isStatic = true; + computed = this.match('['); + if (this.match('*')) { + this.nextToken(); + } + else { + key = this.parseObjectPropertyKey(); + } + } + if ((token.type === 3 /* Identifier */) && !this.hasLineTerminator && (token.value === 'async')) { + var punctuator = this.lookahead.value; + if (punctuator !== ':' && punctuator !== '(' && punctuator !== '*') { + isAsync = true; + token = this.lookahead; + key = this.parseObjectPropertyKey(); + if (token.type === 3 /* Identifier */ && token.value === 'constructor') { + this.tolerateUnexpectedToken(token, messages_1.Messages.ConstructorIsAsync); + } + } + } + } + var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead); + if (token.type === 3 /* Identifier */) { + if (token.value === 'get' && lookaheadPropertyKey) { + kind = 'get'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + this.context.allowYield = false; + value = this.parseGetterMethod(); + } + else if (token.value === 'set' && lookaheadPropertyKey) { + kind = 'set'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + value = this.parseSetterMethod(); + } + } + else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) { + kind = 'init'; + computed = this.match('['); + key = this.parseObjectPropertyKey(); + value = this.parseGeneratorMethod(); + method = true; + } + if (!kind && key && this.match('(')) { + kind = 'init'; + value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction(); + method = true; + } + if (!kind) { + this.throwUnexpectedToken(this.lookahead); + } + if (kind === 'init') { + kind = 'method'; + } + if (!computed) { + if (isStatic && this.isPropertyKey(key, 'prototype')) { + this.throwUnexpectedToken(token, messages_1.Messages.StaticPrototype); + } + if (!isStatic && this.isPropertyKey(key, 'constructor')) { + if (kind !== 'method' || !method || (value && value.generator)) { + this.throwUnexpectedToken(token, messages_1.Messages.ConstructorSpecialMethod); + } + if (hasConstructor.value) { + this.throwUnexpectedToken(token, messages_1.Messages.DuplicateConstructor); + } + else { + hasConstructor.value = true; + } + kind = 'constructor'; + } + } + return this.finalize(node, new Node.MethodDefinition(key, computed, value, kind, isStatic)); + }; + Parser.prototype.parseClassElementList = function () { + var body = []; + var hasConstructor = { value: false }; + this.expect('{'); + while (!this.match('}')) { + if (this.match(';')) { + this.nextToken(); + } + else { + body.push(this.parseClassElement(hasConstructor)); + } + } + this.expect('}'); + return body; + }; + Parser.prototype.parseClassBody = function () { + var node = this.createNode(); + var elementList = this.parseClassElementList(); + return this.finalize(node, new Node.ClassBody(elementList)); + }; + Parser.prototype.parseClassDeclaration = function (identifierIsOptional) { + var node = this.createNode(); + var previousStrict = this.context.strict; + this.context.strict = true; + this.expectKeyword('class'); + var id = (identifierIsOptional && (this.lookahead.type !== 3 /* Identifier */)) ? null : this.parseVariableIdentifier(); + var superClass = null; + if (this.matchKeyword('extends')) { + this.nextToken(); + superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall); + } + var classBody = this.parseClassBody(); + this.context.strict = previousStrict; + return this.finalize(node, new Node.ClassDeclaration(id, superClass, classBody)); + }; + Parser.prototype.parseClassExpression = function () { + var node = this.createNode(); + var previousStrict = this.context.strict; + this.context.strict = true; + this.expectKeyword('class'); + var id = (this.lookahead.type === 3 /* Identifier */) ? this.parseVariableIdentifier() : null; + var superClass = null; + if (this.matchKeyword('extends')) { + this.nextToken(); + superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall); + } + var classBody = this.parseClassBody(); + this.context.strict = previousStrict; + return this.finalize(node, new Node.ClassExpression(id, superClass, classBody)); + }; + // https://tc39.github.io/ecma262/#sec-scripts + // https://tc39.github.io/ecma262/#sec-modules + Parser.prototype.parseModule = function () { + this.context.strict = true; + this.context.isModule = true; + this.scanner.isModule = true; + var node = this.createNode(); + var body = this.parseDirectivePrologues(); + while (this.lookahead.type !== 2 /* EOF */) { + body.push(this.parseStatementListItem()); + } + return this.finalize(node, new Node.Module(body)); + }; + Parser.prototype.parseScript = function () { + var node = this.createNode(); + var body = this.parseDirectivePrologues(); + while (this.lookahead.type !== 2 /* EOF */) { + body.push(this.parseStatementListItem()); + } + return this.finalize(node, new Node.Script(body)); + }; + // https://tc39.github.io/ecma262/#sec-imports + Parser.prototype.parseModuleSpecifier = function () { + var node = this.createNode(); + if (this.lookahead.type !== 8 /* StringLiteral */) { + this.throwError(messages_1.Messages.InvalidModuleSpecifier); + } + var token = this.nextToken(); + var raw = this.getTokenRaw(token); + return this.finalize(node, new Node.Literal(token.value, raw)); + }; + // import {} ...; + Parser.prototype.parseImportSpecifier = function () { + var node = this.createNode(); + var imported; + var local; + if (this.lookahead.type === 3 /* Identifier */) { + imported = this.parseVariableIdentifier(); + local = imported; + if (this.matchContextualKeyword('as')) { + this.nextToken(); + local = this.parseVariableIdentifier(); + } + } + else { + imported = this.parseIdentifierName(); + local = imported; + if (this.matchContextualKeyword('as')) { + this.nextToken(); + local = this.parseVariableIdentifier(); + } + else { + this.throwUnexpectedToken(this.nextToken()); + } + } + return this.finalize(node, new Node.ImportSpecifier(local, imported)); + }; + // {foo, bar as bas} + Parser.prototype.parseNamedImports = function () { + this.expect('{'); + var specifiers = []; + while (!this.match('}')) { + specifiers.push(this.parseImportSpecifier()); + if (!this.match('}')) { + this.expect(','); + } + } + this.expect('}'); + return specifiers; + }; + // import ...; + Parser.prototype.parseImportDefaultSpecifier = function () { + var node = this.createNode(); + var local = this.parseIdentifierName(); + return this.finalize(node, new Node.ImportDefaultSpecifier(local)); + }; + // import <* as foo> ...; + Parser.prototype.parseImportNamespaceSpecifier = function () { + var node = this.createNode(); + this.expect('*'); + if (!this.matchContextualKeyword('as')) { + this.throwError(messages_1.Messages.NoAsAfterImportNamespace); + } + this.nextToken(); + var local = this.parseIdentifierName(); + return this.finalize(node, new Node.ImportNamespaceSpecifier(local)); + }; + Parser.prototype.parseImportDeclaration = function () { + if (this.context.inFunctionBody) { + this.throwError(messages_1.Messages.IllegalImportDeclaration); + } + var node = this.createNode(); + this.expectKeyword('import'); + var src; + var specifiers = []; + if (this.lookahead.type === 8 /* StringLiteral */) { + // import 'foo'; + src = this.parseModuleSpecifier(); + } + else { + if (this.match('{')) { + // import {bar} + specifiers = specifiers.concat(this.parseNamedImports()); + } + else if (this.match('*')) { + // import * as foo + specifiers.push(this.parseImportNamespaceSpecifier()); + } + else if (this.isIdentifierName(this.lookahead) && !this.matchKeyword('default')) { + // import foo + specifiers.push(this.parseImportDefaultSpecifier()); + if (this.match(',')) { + this.nextToken(); + if (this.match('*')) { + // import foo, * as foo + specifiers.push(this.parseImportNamespaceSpecifier()); + } + else if (this.match('{')) { + // import foo, {bar} + specifiers = specifiers.concat(this.parseNamedImports()); + } + else { + this.throwUnexpectedToken(this.lookahead); + } + } + } + else { + this.throwUnexpectedToken(this.nextToken()); + } + if (!this.matchContextualKeyword('from')) { + var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; + this.throwError(message, this.lookahead.value); + } + this.nextToken(); + src = this.parseModuleSpecifier(); + } + this.consumeSemicolon(); + return this.finalize(node, new Node.ImportDeclaration(specifiers, src)); + }; + // https://tc39.github.io/ecma262/#sec-exports + Parser.prototype.parseExportSpecifier = function () { + var node = this.createNode(); + var local = this.parseIdentifierName(); + var exported = local; + if (this.matchContextualKeyword('as')) { + this.nextToken(); + exported = this.parseIdentifierName(); + } + return this.finalize(node, new Node.ExportSpecifier(local, exported)); + }; + Parser.prototype.parseExportDeclaration = function () { + if (this.context.inFunctionBody) { + this.throwError(messages_1.Messages.IllegalExportDeclaration); + } + var node = this.createNode(); + this.expectKeyword('export'); + var exportDeclaration; + if (this.matchKeyword('default')) { + // export default ... + this.nextToken(); + if (this.matchKeyword('function')) { + // export default function foo () {} + // export default function () {} + var declaration = this.parseFunctionDeclaration(true); + exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); + } + else if (this.matchKeyword('class')) { + // export default class foo {} + var declaration = this.parseClassDeclaration(true); + exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); + } + else if (this.matchContextualKeyword('async')) { + // export default async function f () {} + // export default async function () {} + // export default async x => x + var declaration = this.matchAsyncFunction() ? this.parseFunctionDeclaration(true) : this.parseAssignmentExpression(); + exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); + } + else { + if (this.matchContextualKeyword('from')) { + this.throwError(messages_1.Messages.UnexpectedToken, this.lookahead.value); + } + // export default {}; + // export default []; + // export default (1 + 2); + var declaration = this.match('{') ? this.parseObjectInitializer() : + this.match('[') ? this.parseArrayInitializer() : this.parseAssignmentExpression(); + this.consumeSemicolon(); + exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); + } + } + else if (this.match('*')) { + // export * from 'foo'; + this.nextToken(); + if (!this.matchContextualKeyword('from')) { + var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; + this.throwError(message, this.lookahead.value); + } + this.nextToken(); + var src = this.parseModuleSpecifier(); + this.consumeSemicolon(); + exportDeclaration = this.finalize(node, new Node.ExportAllDeclaration(src)); + } + else if (this.lookahead.type === 4 /* Keyword */) { + // export var f = 1; + var declaration = void 0; + switch (this.lookahead.value) { + case 'let': + case 'const': + declaration = this.parseLexicalDeclaration({ inFor: false }); + break; + case 'var': + case 'class': + case 'function': + declaration = this.parseStatementListItem(); + break; + default: + this.throwUnexpectedToken(this.lookahead); + } + exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null)); + } + else if (this.matchAsyncFunction()) { + var declaration = this.parseFunctionDeclaration(); + exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null)); + } + else { + var specifiers = []; + var source = null; + var isExportFromIdentifier = false; + this.expect('{'); + while (!this.match('}')) { + isExportFromIdentifier = isExportFromIdentifier || this.matchKeyword('default'); + specifiers.push(this.parseExportSpecifier()); + if (!this.match('}')) { + this.expect(','); + } + } + this.expect('}'); + if (this.matchContextualKeyword('from')) { + // export {default} from 'foo'; + // export {foo} from 'foo'; + this.nextToken(); + source = this.parseModuleSpecifier(); + this.consumeSemicolon(); + } + else if (isExportFromIdentifier) { + // export {default}; // missing fromClause + var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; + this.throwError(message, this.lookahead.value); + } + else { + // export {foo}; + this.consumeSemicolon(); + } + exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(null, specifiers, source)); + } + return exportDeclaration; + }; + return Parser; + }()); + exports.Parser = Parser; + + +/***/ }, +/* 9 */ +/***/ function(module, exports) { + + "use strict"; + // Ensure the condition is true, otherwise throw an error. + // This is only to have a better contract semantic, i.e. another safety net + // to catch a logic error. The condition shall be fulfilled in normal case. + // Do NOT use this to enforce a certain condition on any user input. + Object.defineProperty(exports, "__esModule", { value: true }); + function assert(condition, message) { + /* istanbul ignore if */ + if (!condition) { + throw new Error('ASSERT: ' + message); + } + } + exports.assert = assert; + + +/***/ }, +/* 10 */ +/***/ function(module, exports) { + + "use strict"; + /* tslint:disable:max-classes-per-file */ + Object.defineProperty(exports, "__esModule", { value: true }); + var ErrorHandler = (function () { + function ErrorHandler() { + this.errors = []; + this.tolerant = false; + } + ErrorHandler.prototype.recordError = function (error) { + this.errors.push(error); + }; + ErrorHandler.prototype.tolerate = function (error) { + if (this.tolerant) { + this.recordError(error); + } + else { + throw error; + } + }; + ErrorHandler.prototype.constructError = function (msg, column) { + var error = new Error(msg); + try { + throw error; + } + catch (base) { + /* istanbul ignore else */ + if (Object.create && Object.defineProperty) { + error = Object.create(base); + Object.defineProperty(error, 'column', { value: column }); + } + } + /* istanbul ignore next */ + return error; + }; + ErrorHandler.prototype.createError = function (index, line, col, description) { + var msg = 'Line ' + line + ': ' + description; + var error = this.constructError(msg, col); + error.index = index; + error.lineNumber = line; + error.description = description; + return error; + }; + ErrorHandler.prototype.throwError = function (index, line, col, description) { + throw this.createError(index, line, col, description); + }; + ErrorHandler.prototype.tolerateError = function (index, line, col, description) { + var error = this.createError(index, line, col, description); + if (this.tolerant) { + this.recordError(error); + } + else { + throw error; + } + }; + return ErrorHandler; + }()); + exports.ErrorHandler = ErrorHandler; + + +/***/ }, +/* 11 */ +/***/ function(module, exports) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + // Error messages should be identical to V8. + exports.Messages = { + BadGetterArity: 'Getter must not have any formal parameters', + BadSetterArity: 'Setter must have exactly one formal parameter', + BadSetterRestParameter: 'Setter function argument must not be a rest parameter', + ConstructorIsAsync: 'Class constructor may not be an async method', + ConstructorSpecialMethod: 'Class constructor may not be an accessor', + DeclarationMissingInitializer: 'Missing initializer in %0 declaration', + DefaultRestParameter: 'Unexpected token =', + DuplicateBinding: 'Duplicate binding %0', + DuplicateConstructor: 'A class may only have one constructor', + DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals', + ForInOfLoopInitializer: '%0 loop variable declaration may not have an initializer', + GeneratorInLegacyContext: 'Generator declarations are not allowed in legacy contexts', + IllegalBreak: 'Illegal break statement', + IllegalContinue: 'Illegal continue statement', + IllegalExportDeclaration: 'Unexpected token', + IllegalImportDeclaration: 'Unexpected token', + IllegalLanguageModeDirective: 'Illegal \'use strict\' directive in function with non-simple parameter list', + IllegalReturn: 'Illegal return statement', + InvalidEscapedReservedWord: 'Keyword must not contain escaped characters', + InvalidHexEscapeSequence: 'Invalid hexadecimal escape sequence', + InvalidLHSInAssignment: 'Invalid left-hand side in assignment', + InvalidLHSInForIn: 'Invalid left-hand side in for-in', + InvalidLHSInForLoop: 'Invalid left-hand side in for-loop', + InvalidModuleSpecifier: 'Unexpected token', + InvalidRegExp: 'Invalid regular expression', + LetInLexicalBinding: 'let is disallowed as a lexically bound name', + MissingFromClause: 'Unexpected token', + MultipleDefaultsInSwitch: 'More than one default clause in switch statement', + NewlineAfterThrow: 'Illegal newline after throw', + NoAsAfterImportNamespace: 'Unexpected token', + NoCatchOrFinally: 'Missing catch or finally after try', + ParameterAfterRestParameter: 'Rest parameter must be last formal parameter', + Redeclaration: '%0 \'%1\' has already been declared', + StaticPrototype: 'Classes may not have static property named prototype', + StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode', + StrictDelete: 'Delete of an unqualified identifier in strict mode.', + StrictFunction: 'In strict mode code, functions can only be declared at top level or inside a block', + StrictFunctionName: 'Function name may not be eval or arguments in strict mode', + StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode', + StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode', + StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode', + StrictModeWith: 'Strict mode code may not include a with statement', + StrictOctalLiteral: 'Octal literals are not allowed in strict mode.', + StrictParamDupe: 'Strict mode function may not have duplicate parameter names', + StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode', + StrictReservedWord: 'Use of future reserved word in strict mode', + StrictVarName: 'Variable name may not be eval or arguments in strict mode', + TemplateOctalLiteral: 'Octal literals are not allowed in template strings.', + UnexpectedEOS: 'Unexpected end of input', + UnexpectedIdentifier: 'Unexpected identifier', + UnexpectedNumber: 'Unexpected number', + UnexpectedReserved: 'Unexpected reserved word', + UnexpectedString: 'Unexpected string', + UnexpectedTemplate: 'Unexpected quasi %0', + UnexpectedToken: 'Unexpected token %0', + UnexpectedTokenIllegal: 'Unexpected token ILLEGAL', + UnknownLabel: 'Undefined label \'%0\'', + UnterminatedRegExp: 'Invalid regular expression: missing /' + }; + + +/***/ }, +/* 12 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + Object.defineProperty(exports, "__esModule", { value: true }); + var assert_1 = __webpack_require__(9); + var character_1 = __webpack_require__(4); + var messages_1 = __webpack_require__(11); + function hexValue(ch) { + return '0123456789abcdef'.indexOf(ch.toLowerCase()); + } + function octalValue(ch) { + return '01234567'.indexOf(ch); + } + var Scanner = (function () { + function Scanner(code, handler) { + this.source = code; + this.errorHandler = handler; + this.trackComment = false; + this.isModule = false; + this.length = code.length; + this.index = 0; + this.lineNumber = (code.length > 0) ? 1 : 0; + this.lineStart = 0; + this.curlyStack = []; + } + Scanner.prototype.saveState = function () { + return { + index: this.index, + lineNumber: this.lineNumber, + lineStart: this.lineStart + }; + }; + Scanner.prototype.restoreState = function (state) { + this.index = state.index; + this.lineNumber = state.lineNumber; + this.lineStart = state.lineStart; + }; + Scanner.prototype.eof = function () { + return this.index >= this.length; + }; + Scanner.prototype.throwUnexpectedToken = function (message) { + if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; } + return this.errorHandler.throwError(this.index, this.lineNumber, this.index - this.lineStart + 1, message); + }; + Scanner.prototype.tolerateUnexpectedToken = function (message) { + if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; } + this.errorHandler.tolerateError(this.index, this.lineNumber, this.index - this.lineStart + 1, message); + }; + // https://tc39.github.io/ecma262/#sec-comments + Scanner.prototype.skipSingleLineComment = function (offset) { + var comments = []; + var start, loc; + if (this.trackComment) { + comments = []; + start = this.index - offset; + loc = { + start: { + line: this.lineNumber, + column: this.index - this.lineStart - offset + }, + end: {} + }; + } + while (!this.eof()) { + var ch = this.source.charCodeAt(this.index); + ++this.index; + if (character_1.Character.isLineTerminator(ch)) { + if (this.trackComment) { + loc.end = { + line: this.lineNumber, + column: this.index - this.lineStart - 1 + }; + var entry = { + multiLine: false, + slice: [start + offset, this.index - 1], + range: [start, this.index - 1], + loc: loc + }; + comments.push(entry); + } + if (ch === 13 && this.source.charCodeAt(this.index) === 10) { + ++this.index; + } + ++this.lineNumber; + this.lineStart = this.index; + return comments; + } + } + if (this.trackComment) { + loc.end = { + line: this.lineNumber, + column: this.index - this.lineStart + }; + var entry = { + multiLine: false, + slice: [start + offset, this.index], + range: [start, this.index], + loc: loc + }; + comments.push(entry); + } + return comments; + }; + Scanner.prototype.skipMultiLineComment = function () { + var comments = []; + var start, loc; + if (this.trackComment) { + comments = []; + start = this.index - 2; + loc = { + start: { + line: this.lineNumber, + column: this.index - this.lineStart - 2 + }, + end: {} + }; + } + while (!this.eof()) { + var ch = this.source.charCodeAt(this.index); + if (character_1.Character.isLineTerminator(ch)) { + if (ch === 0x0D && this.source.charCodeAt(this.index + 1) === 0x0A) { + ++this.index; + } + ++this.lineNumber; + ++this.index; + this.lineStart = this.index; + } + else if (ch === 0x2A) { + // Block comment ends with '*/'. + if (this.source.charCodeAt(this.index + 1) === 0x2F) { + this.index += 2; + if (this.trackComment) { + loc.end = { + line: this.lineNumber, + column: this.index - this.lineStart + }; + var entry = { + multiLine: true, + slice: [start + 2, this.index - 2], + range: [start, this.index], + loc: loc + }; + comments.push(entry); + } + return comments; + } + ++this.index; + } + else { + ++this.index; + } + } + // Ran off the end of the file - the whole thing is a comment + if (this.trackComment) { + loc.end = { + line: this.lineNumber, + column: this.index - this.lineStart + }; + var entry = { + multiLine: true, + slice: [start + 2, this.index], + range: [start, this.index], + loc: loc + }; + comments.push(entry); + } + this.tolerateUnexpectedToken(); + return comments; + }; + Scanner.prototype.scanComments = function () { + var comments; + if (this.trackComment) { + comments = []; + } + var start = (this.index === 0); + while (!this.eof()) { + var ch = this.source.charCodeAt(this.index); + if (character_1.Character.isWhiteSpace(ch)) { + ++this.index; + } + else if (character_1.Character.isLineTerminator(ch)) { + ++this.index; + if (ch === 0x0D && this.source.charCodeAt(this.index) === 0x0A) { + ++this.index; + } + ++this.lineNumber; + this.lineStart = this.index; + start = true; + } + else if (ch === 0x2F) { + ch = this.source.charCodeAt(this.index + 1); + if (ch === 0x2F) { + this.index += 2; + var comment = this.skipSingleLineComment(2); + if (this.trackComment) { + comments = comments.concat(comment); + } + start = true; + } + else if (ch === 0x2A) { + this.index += 2; + var comment = this.skipMultiLineComment(); + if (this.trackComment) { + comments = comments.concat(comment); + } + } + else { + break; + } + } + else if (start && ch === 0x2D) { + // U+003E is '>' + if ((this.source.charCodeAt(this.index + 1) === 0x2D) && (this.source.charCodeAt(this.index + 2) === 0x3E)) { + // '-->' is a single-line comment + this.index += 3; + var comment = this.skipSingleLineComment(3); + if (this.trackComment) { + comments = comments.concat(comment); + } + } + else { + break; + } + } + else if (ch === 0x3C && !this.isModule) { + if (this.source.slice(this.index + 1, this.index + 4) === '!--') { + this.index += 4; // `