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1 (function webpackUniversalModuleDefinition(root, factory) { 2 /* istanbul ignore next */ 3 if(typeof exports === 'object' && typeof module === 'object') 4 module.exports = factory(); 5 else if(typeof define === 'function' && define.amd) 6 define([], factory); 7 /* istanbul ignore next */ 8 else if(typeof exports === 'object') 9 exports["esprima"] = factory(); 10 else 11 root["esprima"] = factory(); 12 })(this, function() { 13 return /******/ (function(modules) { // webpackBootstrap 14 /******/ // The module cache 15 /******/ var installedModules = {}; 16 17 /******/ // The require function 18 /******/ function __webpack_require__(moduleId) { 19 20 /******/ // Check if module is in cache 21 /* istanbul ignore if */ 22 /******/ if(installedModules[moduleId]) 23 /******/ return installedModules[moduleId].exports; 24 25 /******/ // Create a new module (and put it into the cache) 26 /******/ var module = installedModules[moduleId] = { 27 /******/ exports: {}, 28 /******/ id: moduleId, 29 /******/ loaded: false 30 /******/ }; 31 32 /******/ // Execute the module function 33 /******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); 34 35 /******/ // Flag the module as loaded 36 /******/ module.loaded = true; 37 38 /******/ // Return the exports of the module 39 /******/ return module.exports; 40 /******/ } 41 42 43 /******/ // expose the modules object (__webpack_modules__) 44 /******/ __webpack_require__.m = modules; 45 46 /******/ // expose the module cache 47 /******/ __webpack_require__.c = installedModules; 48 49 /******/ // __webpack_public_path__ 50 /******/ __webpack_require__.p = ""; 51 52 /******/ // Load entry module and return exports 53 /******/ return __webpack_require__(0); 54 /******/ }) 55 /************************************************************************/ 56 /******/ ([ 57 /* 0 */ 58 /***/ function(module, exports, __webpack_require__) { 59 60 "use strict"; 61 /* 62 Copyright JS Foundation and other contributors, https://js.foundation/ 63 64 Redistribution and use in source and binary forms, with or without 65 modification, are permitted provided that the following conditions are met: 66 67 * Redistributions of source code must retain the above copyright 68 notice, this list of conditions and the following disclaimer. 69 * Redistributions in binary form must reproduce the above copyright 70 notice, this list of conditions and the following disclaimer in the 71 documentation and/or other materials provided with the distribution. 72 73 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 74 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 75 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 76 ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY 77 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 78 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 79 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 80 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 81 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 82 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 83 */ 84 Object.defineProperty(exports, "__esModule", { value: true }); 85 var comment_handler_1 = __webpack_require__(1); 86 var jsx_parser_1 = __webpack_require__(3); 87 var parser_1 = __webpack_require__(8); 88 var tokenizer_1 = __webpack_require__(15); 89 function parse(code, options, delegate) { 90 var commentHandler = null; 91 var proxyDelegate = function (node, metadata) { 92 if (delegate) { 93 delegate(node, metadata); 94 } 95 if (commentHandler) { 96 commentHandler.visit(node, metadata); 97 } 98 }; 99 var parserDelegate = (typeof delegate === 'function') ? proxyDelegate : null; 100 var collectComment = false; 101 if (options) { 102 collectComment = (typeof options.comment === 'boolean' && options.comment); 103 var attachComment = (typeof options.attachComment === 'boolean' && options.attachComment); 104 if (collectComment || attachComment) { 105 commentHandler = new comment_handler_1.CommentHandler(); 106 commentHandler.attach = attachComment; 107 options.comment = true; 108 parserDelegate = proxyDelegate; 109 } 110 } 111 var isModule = false; 112 if (options && typeof options.sourceType === 'string') { 113 isModule = (options.sourceType === 'module'); 114 } 115 var parser; 116 if (options && typeof options.jsx === 'boolean' && options.jsx) { 117 parser = new jsx_parser_1.JSXParser(code, options, parserDelegate); 118 } 119 else { 120 parser = new parser_1.Parser(code, options, parserDelegate); 121 } 122 var program = isModule ? parser.parseModule() : parser.parseScript(); 123 var ast = program; 124 if (collectComment && commentHandler) { 125 ast.comments = commentHandler.comments; 126 } 127 if (parser.config.tokens) { 128 ast.tokens = parser.tokens; 129 } 130 if (parser.config.tolerant) { 131 ast.errors = parser.errorHandler.errors; 132 } 133 return ast; 134 } 135 exports.parse = parse; 136 function parseModule(code, options, delegate) { 137 var parsingOptions = options || {}; 138 parsingOptions.sourceType = 'module'; 139 return parse(code, parsingOptions, delegate); 140 } 141 exports.parseModule = parseModule; 142 function parseScript(code, options, delegate) { 143 var parsingOptions = options || {}; 144 parsingOptions.sourceType = 'script'; 145 return parse(code, parsingOptions, delegate); 146 } 147 exports.parseScript = parseScript; 148 function tokenize(code, options, delegate) { 149 var tokenizer = new tokenizer_1.Tokenizer(code, options); 150 var tokens; 151 tokens = []; 152 try { 153 while (true) { 154 var token = tokenizer.getNextToken(); 155 if (!token) { 156 break; 157 } 158 if (delegate) { 159 token = delegate(token); 160 } 161 tokens.push(token); 162 } 163 } 164 catch (e) { 165 tokenizer.errorHandler.tolerate(e); 166 } 167 if (tokenizer.errorHandler.tolerant) { 168 tokens.errors = tokenizer.errors(); 169 } 170 return tokens; 171 } 172 exports.tokenize = tokenize; 173 var syntax_1 = __webpack_require__(2); 174 exports.Syntax = syntax_1.Syntax; 175 // Sync with *.json manifests. 176 exports.version = '4.0.0'; 177 178 179 /***/ }, 180 /* 1 */ 181 /***/ function(module, exports, __webpack_require__) { 182 183 "use strict"; 184 Object.defineProperty(exports, "__esModule", { value: true }); 185 var syntax_1 = __webpack_require__(2); 186 var CommentHandler = (function () { 187 function CommentHandler() { 188 this.attach = false; 189 this.comments = []; 190 this.stack = []; 191 this.leading = []; 192 this.trailing = []; 193 } 194 CommentHandler.prototype.insertInnerComments = function (node, metadata) { 195 // innnerComments for properties empty block 196 // `function a() {/** comments **\/}` 197 if (node.type === syntax_1.Syntax.BlockStatement && node.body.length === 0) { 198 var innerComments = []; 199 for (var i = this.leading.length - 1; i >= 0; --i) { 200 var entry = this.leading[i]; 201 if (metadata.end.offset >= entry.start) { 202 innerComments.unshift(entry.comment); 203 this.leading.splice(i, 1); 204 this.trailing.splice(i, 1); 205 } 206 } 207 if (innerComments.length) { 208 node.innerComments = innerComments; 209 } 210 } 211 }; 212 CommentHandler.prototype.findTrailingComments = function (metadata) { 213 var trailingComments = []; 214 if (this.trailing.length > 0) { 215 for (var i = this.trailing.length - 1; i >= 0; --i) { 216 var entry_1 = this.trailing[i]; 217 if (entry_1.start >= metadata.end.offset) { 218 trailingComments.unshift(entry_1.comment); 219 } 220 } 221 this.trailing.length = 0; 222 return trailingComments; 223 } 224 var entry = this.stack[this.stack.length - 1]; 225 if (entry && entry.node.trailingComments) { 226 var firstComment = entry.node.trailingComments[0]; 227 if (firstComment && firstComment.range[0] >= metadata.end.offset) { 228 trailingComments = entry.node.trailingComments; 229 delete entry.node.trailingComments; 230 } 231 } 232 return trailingComments; 233 }; 234 CommentHandler.prototype.findLeadingComments = function (metadata) { 235 var leadingComments = []; 236 var target; 237 while (this.stack.length > 0) { 238 var entry = this.stack[this.stack.length - 1]; 239 if (entry && entry.start >= metadata.start.offset) { 240 target = entry.node; 241 this.stack.pop(); 242 } 243 else { 244 break; 245 } 246 } 247 if (target) { 248 var count = target.leadingComments ? target.leadingComments.length : 0; 249 for (var i = count - 1; i >= 0; --i) { 250 var comment = target.leadingComments[i]; 251 if (comment.range[1] <= metadata.start.offset) { 252 leadingComments.unshift(comment); 253 target.leadingComments.splice(i, 1); 254 } 255 } 256 if (target.leadingComments && target.leadingComments.length === 0) { 257 delete target.leadingComments; 258 } 259 return leadingComments; 260 } 261 for (var i = this.leading.length - 1; i >= 0; --i) { 262 var entry = this.leading[i]; 263 if (entry.start <= metadata.start.offset) { 264 leadingComments.unshift(entry.comment); 265 this.leading.splice(i, 1); 266 } 267 } 268 return leadingComments; 269 }; 270 CommentHandler.prototype.visitNode = function (node, metadata) { 271 if (node.type === syntax_1.Syntax.Program && node.body.length > 0) { 272 return; 273 } 274 this.insertInnerComments(node, metadata); 275 var trailingComments = this.findTrailingComments(metadata); 276 var leadingComments = this.findLeadingComments(metadata); 277 if (leadingComments.length > 0) { 278 node.leadingComments = leadingComments; 279 } 280 if (trailingComments.length > 0) { 281 node.trailingComments = trailingComments; 282 } 283 this.stack.push({ 284 node: node, 285 start: metadata.start.offset 286 }); 287 }; 288 CommentHandler.prototype.visitComment = function (node, metadata) { 289 var type = (node.type[0] === 'L') ? 'Line' : 'Block'; 290 var comment = { 291 type: type, 292 value: node.value 293 }; 294 if (node.range) { 295 comment.range = node.range; 296 } 297 if (node.loc) { 298 comment.loc = node.loc; 299 } 300 this.comments.push(comment); 301 if (this.attach) { 302 var entry = { 303 comment: { 304 type: type, 305 value: node.value, 306 range: [metadata.start.offset, metadata.end.offset] 307 }, 308 start: metadata.start.offset 309 }; 310 if (node.loc) { 311 entry.comment.loc = node.loc; 312 } 313 node.type = type; 314 this.leading.push(entry); 315 this.trailing.push(entry); 316 } 317 }; 318 CommentHandler.prototype.visit = function (node, metadata) { 319 if (node.type === 'LineComment') { 320 this.visitComment(node, metadata); 321 } 322 else if (node.type === 'BlockComment') { 323 this.visitComment(node, metadata); 324 } 325 else if (this.attach) { 326 this.visitNode(node, metadata); 327 } 328 }; 329 return CommentHandler; 330 }()); 331 exports.CommentHandler = CommentHandler; 332 333 334 /***/ }, 335 /* 2 */ 336 /***/ function(module, exports) { 337 338 "use strict"; 339 Object.defineProperty(exports, "__esModule", { value: true }); 340 exports.Syntax = { 341 AssignmentExpression: 'AssignmentExpression', 342 AssignmentPattern: 'AssignmentPattern', 343 ArrayExpression: 'ArrayExpression', 344 ArrayPattern: 'ArrayPattern', 345 ArrowFunctionExpression: 'ArrowFunctionExpression', 346 AwaitExpression: 'AwaitExpression', 347 BlockStatement: 'BlockStatement', 348 BinaryExpression: 'BinaryExpression', 349 BreakStatement: 'BreakStatement', 350 CallExpression: 'CallExpression', 351 CatchClause: 'CatchClause', 352 ClassBody: 'ClassBody', 353 ClassDeclaration: 'ClassDeclaration', 354 ClassExpression: 'ClassExpression', 355 ConditionalExpression: 'ConditionalExpression', 356 ContinueStatement: 'ContinueStatement', 357 DoWhileStatement: 'DoWhileStatement', 358 DebuggerStatement: 'DebuggerStatement', 359 EmptyStatement: 'EmptyStatement', 360 ExportAllDeclaration: 'ExportAllDeclaration', 361 ExportDefaultDeclaration: 'ExportDefaultDeclaration', 362 ExportNamedDeclaration: 'ExportNamedDeclaration', 363 ExportSpecifier: 'ExportSpecifier', 364 ExpressionStatement: 'ExpressionStatement', 365 ForStatement: 'ForStatement', 366 ForOfStatement: 'ForOfStatement', 367 ForInStatement: 'ForInStatement', 368 FunctionDeclaration: 'FunctionDeclaration', 369 FunctionExpression: 'FunctionExpression', 370 Identifier: 'Identifier', 371 IfStatement: 'IfStatement', 372 ImportDeclaration: 'ImportDeclaration', 373 ImportDefaultSpecifier: 'ImportDefaultSpecifier', 374 ImportNamespaceSpecifier: 'ImportNamespaceSpecifier', 375 ImportSpecifier: 'ImportSpecifier', 376 Literal: 'Literal', 377 LabeledStatement: 'LabeledStatement', 378 LogicalExpression: 'LogicalExpression', 379 MemberExpression: 'MemberExpression', 380 MetaProperty: 'MetaProperty', 381 MethodDefinition: 'MethodDefinition', 382 NewExpression: 'NewExpression', 383 ObjectExpression: 'ObjectExpression', 384 ObjectPattern: 'ObjectPattern', 385 Program: 'Program', 386 Property: 'Property', 387 RestElement: 'RestElement', 388 ReturnStatement: 'ReturnStatement', 389 SequenceExpression: 'SequenceExpression', 390 SpreadElement: 'SpreadElement', 391 Super: 'Super', 392 SwitchCase: 'SwitchCase', 393 SwitchStatement: 'SwitchStatement', 394 TaggedTemplateExpression: 'TaggedTemplateExpression', 395 TemplateElement: 'TemplateElement', 396 TemplateLiteral: 'TemplateLiteral', 397 ThisExpression: 'ThisExpression', 398 ThrowStatement: 'ThrowStatement', 399 TryStatement: 'TryStatement', 400 UnaryExpression: 'UnaryExpression', 401 UpdateExpression: 'UpdateExpression', 402 VariableDeclaration: 'VariableDeclaration', 403 VariableDeclarator: 'VariableDeclarator', 404 WhileStatement: 'WhileStatement', 405 WithStatement: 'WithStatement', 406 YieldExpression: 'YieldExpression' 407 }; 408 409 410 /***/ }, 411 /* 3 */ 412 /***/ function(module, exports, __webpack_require__) { 413 414 "use strict"; 415 /* istanbul ignore next */ 416 var __extends = (this && this.__extends) || (function () { 417 var extendStatics = Object.setPrototypeOf || 418 ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || 419 function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; }; 420 return function (d, b) { 421 extendStatics(d, b); 422 function __() { this.constructor = d; } 423 d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); 424 }; 425 })(); 426 Object.defineProperty(exports, "__esModule", { value: true }); 427 var character_1 = __webpack_require__(4); 428 var JSXNode = __webpack_require__(5); 429 var jsx_syntax_1 = __webpack_require__(6); 430 var Node = __webpack_require__(7); 431 var parser_1 = __webpack_require__(8); 432 var token_1 = __webpack_require__(13); 433 var xhtml_entities_1 = __webpack_require__(14); 434 token_1.TokenName[100 /* Identifier */] = 'JSXIdentifier'; 435 token_1.TokenName[101 /* Text */] = 'JSXText'; 436 // Fully qualified element name, e.g. <svg:path> returns "svg:path" 437 function getQualifiedElementName(elementName) { 438 var qualifiedName; 439 switch (elementName.type) { 440 case jsx_syntax_1.JSXSyntax.JSXIdentifier: 441 var id = elementName; 442 qualifiedName = id.name; 443 break; 444 case jsx_syntax_1.JSXSyntax.JSXNamespacedName: 445 var ns = elementName; 446 qualifiedName = getQualifiedElementName(ns.namespace) + ':' + 447 getQualifiedElementName(ns.name); 448 break; 449 case jsx_syntax_1.JSXSyntax.JSXMemberExpression: 450 var expr = elementName; 451 qualifiedName = getQualifiedElementName(expr.object) + '.' + 452 getQualifiedElementName(expr.property); 453 break; 454 /* istanbul ignore next */ 455 default: 456 break; 457 } 458 return qualifiedName; 459 } 460 var JSXParser = (function (_super) { 461 __extends(JSXParser, _super); 462 function JSXParser(code, options, delegate) { 463 return _super.call(this, code, options, delegate) || this; 464 } 465 JSXParser.prototype.parsePrimaryExpression = function () { 466 return this.match('<') ? this.parseJSXRoot() : _super.prototype.parsePrimaryExpression.call(this); 467 }; 468 JSXParser.prototype.startJSX = function () { 469 // Unwind the scanner before the lookahead token. 470 this.scanner.index = this.startMarker.index; 471 this.scanner.lineNumber = this.startMarker.line; 472 this.scanner.lineStart = this.startMarker.index - this.startMarker.column; 473 }; 474 JSXParser.prototype.finishJSX = function () { 475 // Prime the next lookahead. 476 this.nextToken(); 477 }; 478 JSXParser.prototype.reenterJSX = function () { 479 this.startJSX(); 480 this.expectJSX('}'); 481 // Pop the closing '}' added from the lookahead. 482 if (this.config.tokens) { 483 this.tokens.pop(); 484 } 485 }; 486 JSXParser.prototype.createJSXNode = function () { 487 this.collectComments(); 488 return { 489 index: this.scanner.index, 490 line: this.scanner.lineNumber, 491 column: this.scanner.index - this.scanner.lineStart 492 }; 493 }; 494 JSXParser.prototype.createJSXChildNode = function () { 495 return { 496 index: this.scanner.index, 497 line: this.scanner.lineNumber, 498 column: this.scanner.index - this.scanner.lineStart 499 }; 500 }; 501 JSXParser.prototype.scanXHTMLEntity = function (quote) { 502 var result = '&'; 503 var valid = true; 504 var terminated = false; 505 var numeric = false; 506 var hex = false; 507 while (!this.scanner.eof() && valid && !terminated) { 508 var ch = this.scanner.source[this.scanner.index]; 509 if (ch === quote) { 510 break; 511 } 512 terminated = (ch === ';'); 513 result += ch; 514 ++this.scanner.index; 515 if (!terminated) { 516 switch (result.length) { 517 case 2: 518 // e.g. '{' 519 numeric = (ch === '#'); 520 break; 521 case 3: 522 if (numeric) { 523 // e.g. 'A' 524 hex = (ch === 'x'); 525 valid = hex || character_1.Character.isDecimalDigit(ch.charCodeAt(0)); 526 numeric = numeric && !hex; 527 } 528 break; 529 default: 530 valid = valid && !(numeric && !character_1.Character.isDecimalDigit(ch.charCodeAt(0))); 531 valid = valid && !(hex && !character_1.Character.isHexDigit(ch.charCodeAt(0))); 532 break; 533 } 534 } 535 } 536 if (valid && terminated && result.length > 2) { 537 // e.g. 'A' becomes just '#x41' 538 var str = result.substr(1, result.length - 2); 539 if (numeric && str.length > 1) { 540 result = String.fromCharCode(parseInt(str.substr(1), 10)); 541 } 542 else if (hex && str.length > 2) { 543 result = String.fromCharCode(parseInt('0' + str.substr(1), 16)); 544 } 545 else if (!numeric && !hex && xhtml_entities_1.XHTMLEntities[str]) { 546 result = xhtml_entities_1.XHTMLEntities[str]; 547 } 548 } 549 return result; 550 }; 551 // Scan the next JSX token. This replaces Scanner#lex when in JSX mode. 552 JSXParser.prototype.lexJSX = function () { 553 var cp = this.scanner.source.charCodeAt(this.scanner.index); 554 // < > / : = { } 555 if (cp === 60 || cp === 62 || cp === 47 || cp === 58 || cp === 61 || cp === 123 || cp === 125) { 556 var value = this.scanner.source[this.scanner.index++]; 557 return { 558 type: 7 /* Punctuator */, 559 value: value, 560 lineNumber: this.scanner.lineNumber, 561 lineStart: this.scanner.lineStart, 562 start: this.scanner.index - 1, 563 end: this.scanner.index 564 }; 565 } 566 // " ' 567 if (cp === 34 || cp === 39) { 568 var start = this.scanner.index; 569 var quote = this.scanner.source[this.scanner.index++]; 570 var str = ''; 571 while (!this.scanner.eof()) { 572 var ch = this.scanner.source[this.scanner.index++]; 573 if (ch === quote) { 574 break; 575 } 576 else if (ch === '&') { 577 str += this.scanXHTMLEntity(quote); 578 } 579 else { 580 str += ch; 581 } 582 } 583 return { 584 type: 8 /* StringLiteral */, 585 value: str, 586 lineNumber: this.scanner.lineNumber, 587 lineStart: this.scanner.lineStart, 588 start: start, 589 end: this.scanner.index 590 }; 591 } 592 // ... or . 593 if (cp === 46) { 594 var n1 = this.scanner.source.charCodeAt(this.scanner.index + 1); 595 var n2 = this.scanner.source.charCodeAt(this.scanner.index + 2); 596 var value = (n1 === 46 && n2 === 46) ? '...' : '.'; 597 var start = this.scanner.index; 598 this.scanner.index += value.length; 599 return { 600 type: 7 /* Punctuator */, 601 value: value, 602 lineNumber: this.scanner.lineNumber, 603 lineStart: this.scanner.lineStart, 604 start: start, 605 end: this.scanner.index 606 }; 607 } 608 // ` 609 if (cp === 96) { 610 // Only placeholder, since it will be rescanned as a real assignment expression. 611 return { 612 type: 10 /* Template */, 613 value: '', 614 lineNumber: this.scanner.lineNumber, 615 lineStart: this.scanner.lineStart, 616 start: this.scanner.index, 617 end: this.scanner.index 618 }; 619 } 620 // Identifer can not contain backslash (char code 92). 621 if (character_1.Character.isIdentifierStart(cp) && (cp !== 92)) { 622 var start = this.scanner.index; 623 ++this.scanner.index; 624 while (!this.scanner.eof()) { 625 var ch = this.scanner.source.charCodeAt(this.scanner.index); 626 if (character_1.Character.isIdentifierPart(ch) && (ch !== 92)) { 627 ++this.scanner.index; 628 } 629 else if (ch === 45) { 630 // Hyphen (char code 45) can be part of an identifier. 631 ++this.scanner.index; 632 } 633 else { 634 break; 635 } 636 } 637 var id = this.scanner.source.slice(start, this.scanner.index); 638 return { 639 type: 100 /* Identifier */, 640 value: id, 641 lineNumber: this.scanner.lineNumber, 642 lineStart: this.scanner.lineStart, 643 start: start, 644 end: this.scanner.index 645 }; 646 } 647 return this.scanner.lex(); 648 }; 649 JSXParser.prototype.nextJSXToken = function () { 650 this.collectComments(); 651 this.startMarker.index = this.scanner.index; 652 this.startMarker.line = this.scanner.lineNumber; 653 this.startMarker.column = this.scanner.index - this.scanner.lineStart; 654 var token = this.lexJSX(); 655 this.lastMarker.index = this.scanner.index; 656 this.lastMarker.line = this.scanner.lineNumber; 657 this.lastMarker.column = this.scanner.index - this.scanner.lineStart; 658 if (this.config.tokens) { 659 this.tokens.push(this.convertToken(token)); 660 } 661 return token; 662 }; 663 JSXParser.prototype.nextJSXText = function () { 664 this.startMarker.index = this.scanner.index; 665 this.startMarker.line = this.scanner.lineNumber; 666 this.startMarker.column = this.scanner.index - this.scanner.lineStart; 667 var start = this.scanner.index; 668 var text = ''; 669 while (!this.scanner.eof()) { 670 var ch = this.scanner.source[this.scanner.index]; 671 if (ch === '{' || ch === '<') { 672 break; 673 } 674 ++this.scanner.index; 675 text += ch; 676 if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) { 677 ++this.scanner.lineNumber; 678 if (ch === '\r' && this.scanner.source[this.scanner.index] === '\n') { 679 ++this.scanner.index; 680 } 681 this.scanner.lineStart = this.scanner.index; 682 } 683 } 684 this.lastMarker.index = this.scanner.index; 685 this.lastMarker.line = this.scanner.lineNumber; 686 this.lastMarker.column = this.scanner.index - this.scanner.lineStart; 687 var token = { 688 type: 101 /* Text */, 689 value: text, 690 lineNumber: this.scanner.lineNumber, 691 lineStart: this.scanner.lineStart, 692 start: start, 693 end: this.scanner.index 694 }; 695 if ((text.length > 0) && this.config.tokens) { 696 this.tokens.push(this.convertToken(token)); 697 } 698 return token; 699 }; 700 JSXParser.prototype.peekJSXToken = function () { 701 var state = this.scanner.saveState(); 702 this.scanner.scanComments(); 703 var next = this.lexJSX(); 704 this.scanner.restoreState(state); 705 return next; 706 }; 707 // Expect the next JSX token to match the specified punctuator. 708 // If not, an exception will be thrown. 709 JSXParser.prototype.expectJSX = function (value) { 710 var token = this.nextJSXToken(); 711 if (token.type !== 7 /* Punctuator */ || token.value !== value) { 712 this.throwUnexpectedToken(token); 713 } 714 }; 715 // Return true if the next JSX token matches the specified punctuator. 716 JSXParser.prototype.matchJSX = function (value) { 717 var next = this.peekJSXToken(); 718 return next.type === 7 /* Punctuator */ && next.value === value; 719 }; 720 JSXParser.prototype.parseJSXIdentifier = function () { 721 var node = this.createJSXNode(); 722 var token = this.nextJSXToken(); 723 if (token.type !== 100 /* Identifier */) { 724 this.throwUnexpectedToken(token); 725 } 726 return this.finalize(node, new JSXNode.JSXIdentifier(token.value)); 727 }; 728 JSXParser.prototype.parseJSXElementName = function () { 729 var node = this.createJSXNode(); 730 var elementName = this.parseJSXIdentifier(); 731 if (this.matchJSX(':')) { 732 var namespace = elementName; 733 this.expectJSX(':'); 734 var name_1 = this.parseJSXIdentifier(); 735 elementName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_1)); 736 } 737 else if (this.matchJSX('.')) { 738 while (this.matchJSX('.')) { 739 var object = elementName; 740 this.expectJSX('.'); 741 var property = this.parseJSXIdentifier(); 742 elementName = this.finalize(node, new JSXNode.JSXMemberExpression(object, property)); 743 } 744 } 745 return elementName; 746 }; 747 JSXParser.prototype.parseJSXAttributeName = function () { 748 var node = this.createJSXNode(); 749 var attributeName; 750 var identifier = this.parseJSXIdentifier(); 751 if (this.matchJSX(':')) { 752 var namespace = identifier; 753 this.expectJSX(':'); 754 var name_2 = this.parseJSXIdentifier(); 755 attributeName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_2)); 756 } 757 else { 758 attributeName = identifier; 759 } 760 return attributeName; 761 }; 762 JSXParser.prototype.parseJSXStringLiteralAttribute = function () { 763 var node = this.createJSXNode(); 764 var token = this.nextJSXToken(); 765 if (token.type !== 8 /* StringLiteral */) { 766 this.throwUnexpectedToken(token); 767 } 768 var raw = this.getTokenRaw(token); 769 return this.finalize(node, new Node.Literal(token.value, raw)); 770 }; 771 JSXParser.prototype.parseJSXExpressionAttribute = function () { 772 var node = this.createJSXNode(); 773 this.expectJSX('{'); 774 this.finishJSX(); 775 if (this.match('}')) { 776 this.tolerateError('JSX attributes must only be assigned a non-empty expression'); 777 } 778 var expression = this.parseAssignmentExpression(); 779 this.reenterJSX(); 780 return this.finalize(node, new JSXNode.JSXExpressionContainer(expression)); 781 }; 782 JSXParser.prototype.parseJSXAttributeValue = function () { 783 return this.matchJSX('{') ? this.parseJSXExpressionAttribute() : 784 this.matchJSX('<') ? this.parseJSXElement() : this.parseJSXStringLiteralAttribute(); 785 }; 786 JSXParser.prototype.parseJSXNameValueAttribute = function () { 787 var node = this.createJSXNode(); 788 var name = this.parseJSXAttributeName(); 789 var value = null; 790 if (this.matchJSX('=')) { 791 this.expectJSX('='); 792 value = this.parseJSXAttributeValue(); 793 } 794 return this.finalize(node, new JSXNode.JSXAttribute(name, value)); 795 }; 796 JSXParser.prototype.parseJSXSpreadAttribute = function () { 797 var node = this.createJSXNode(); 798 this.expectJSX('{'); 799 this.expectJSX('...'); 800 this.finishJSX(); 801 var argument = this.parseAssignmentExpression(); 802 this.reenterJSX(); 803 return this.finalize(node, new JSXNode.JSXSpreadAttribute(argument)); 804 }; 805 JSXParser.prototype.parseJSXAttributes = function () { 806 var attributes = []; 807 while (!this.matchJSX('/') && !this.matchJSX('>')) { 808 var attribute = this.matchJSX('{') ? this.parseJSXSpreadAttribute() : 809 this.parseJSXNameValueAttribute(); 810 attributes.push(attribute); 811 } 812 return attributes; 813 }; 814 JSXParser.prototype.parseJSXOpeningElement = function () { 815 var node = this.createJSXNode(); 816 this.expectJSX('<'); 817 var name = this.parseJSXElementName(); 818 var attributes = this.parseJSXAttributes(); 819 var selfClosing = this.matchJSX('/'); 820 if (selfClosing) { 821 this.expectJSX('/'); 822 } 823 this.expectJSX('>'); 824 return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes)); 825 }; 826 JSXParser.prototype.parseJSXBoundaryElement = function () { 827 var node = this.createJSXNode(); 828 this.expectJSX('<'); 829 if (this.matchJSX('/')) { 830 this.expectJSX('/'); 831 var name_3 = this.parseJSXElementName(); 832 this.expectJSX('>'); 833 return this.finalize(node, new JSXNode.JSXClosingElement(name_3)); 834 } 835 var name = this.parseJSXElementName(); 836 var attributes = this.parseJSXAttributes(); 837 var selfClosing = this.matchJSX('/'); 838 if (selfClosing) { 839 this.expectJSX('/'); 840 } 841 this.expectJSX('>'); 842 return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes)); 843 }; 844 JSXParser.prototype.parseJSXEmptyExpression = function () { 845 var node = this.createJSXChildNode(); 846 this.collectComments(); 847 this.lastMarker.index = this.scanner.index; 848 this.lastMarker.line = this.scanner.lineNumber; 849 this.lastMarker.column = this.scanner.index - this.scanner.lineStart; 850 return this.finalize(node, new JSXNode.JSXEmptyExpression()); 851 }; 852 JSXParser.prototype.parseJSXExpressionContainer = function () { 853 var node = this.createJSXNode(); 854 this.expectJSX('{'); 855 var expression; 856 if (this.matchJSX('}')) { 857 expression = this.parseJSXEmptyExpression(); 858 this.expectJSX('}'); 859 } 860 else { 861 this.finishJSX(); 862 expression = this.parseAssignmentExpression(); 863 this.reenterJSX(); 864 } 865 return this.finalize(node, new JSXNode.JSXExpressionContainer(expression)); 866 }; 867 JSXParser.prototype.parseJSXChildren = function () { 868 var children = []; 869 while (!this.scanner.eof()) { 870 var node = this.createJSXChildNode(); 871 var token = this.nextJSXText(); 872 if (token.start < token.end) { 873 var raw = this.getTokenRaw(token); 874 var child = this.finalize(node, new JSXNode.JSXText(token.value, raw)); 875 children.push(child); 876 } 877 if (this.scanner.source[this.scanner.index] === '{') { 878 var container = this.parseJSXExpressionContainer(); 879 children.push(container); 880 } 881 else { 882 break; 883 } 884 } 885 return children; 886 }; 887 JSXParser.prototype.parseComplexJSXElement = function (el) { 888 var stack = []; 889 while (!this.scanner.eof()) { 890 el.children = el.children.concat(this.parseJSXChildren()); 891 var node = this.createJSXChildNode(); 892 var element = this.parseJSXBoundaryElement(); 893 if (element.type === jsx_syntax_1.JSXSyntax.JSXOpeningElement) { 894 var opening = element; 895 if (opening.selfClosing) { 896 var child = this.finalize(node, new JSXNode.JSXElement(opening, [], null)); 897 el.children.push(child); 898 } 899 else { 900 stack.push(el); 901 el = { node: node, opening: opening, closing: null, children: [] }; 902 } 903 } 904 if (element.type === jsx_syntax_1.JSXSyntax.JSXClosingElement) { 905 el.closing = element; 906 var open_1 = getQualifiedElementName(el.opening.name); 907 var close_1 = getQualifiedElementName(el.closing.name); 908 if (open_1 !== close_1) { 909 this.tolerateError('Expected corresponding JSX closing tag for %0', open_1); 910 } 911 if (stack.length > 0) { 912 var child = this.finalize(el.node, new JSXNode.JSXElement(el.opening, el.children, el.closing)); 913 el = stack[stack.length - 1]; 914 el.children.push(child); 915 stack.pop(); 916 } 917 else { 918 break; 919 } 920 } 921 } 922 return el; 923 }; 924 JSXParser.prototype.parseJSXElement = function () { 925 var node = this.createJSXNode(); 926 var opening = this.parseJSXOpeningElement(); 927 var children = []; 928 var closing = null; 929 if (!opening.selfClosing) { 930 var el = this.parseComplexJSXElement({ node: node, opening: opening, closing: closing, children: children }); 931 children = el.children; 932 closing = el.closing; 933 } 934 return this.finalize(node, new JSXNode.JSXElement(opening, children, closing)); 935 }; 936 JSXParser.prototype.parseJSXRoot = function () { 937 // Pop the opening '<' added from the lookahead. 938 if (this.config.tokens) { 939 this.tokens.pop(); 940 } 941 this.startJSX(); 942 var element = this.parseJSXElement(); 943 this.finishJSX(); 944 return element; 945 }; 946 JSXParser.prototype.isStartOfExpression = function () { 947 return _super.prototype.isStartOfExpression.call(this) || this.match('<'); 948 }; 949 return JSXParser; 950 }(parser_1.Parser)); 951 exports.JSXParser = JSXParser; 952 953 954 /***/ }, 955 /* 4 */ 956 /***/ function(module, exports) { 957 958 "use strict"; 959 Object.defineProperty(exports, "__esModule", { value: true }); 960 // See also tools/generate-unicode-regex.js. 961 var Regex = { 962 // Unicode v8.0.0 NonAsciiIdentifierStart: 963 NonAsciiIdentifierStart: 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964 // Unicode v8.0.0 NonAsciiIdentifierPart: 965 NonAsciiIdentifierPart: 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966 }; 967 exports.Character = { 968 /* tslint:disable:no-bitwise */ 969 fromCodePoint: function (cp) { 970 return (cp < 0x10000) ? String.fromCharCode(cp) : 971 String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) + 972 String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023)); 973 }, 974 // https://tc39.github.io/ecma262/#sec-white-space 975 isWhiteSpace: function (cp) { 976 return (cp === 0x20) || (cp === 0x09) || (cp === 0x0B) || (cp === 0x0C) || (cp === 0xA0) || 977 (cp >= 0x1680 && [0x1680, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(cp) >= 0); 978 }, 979 // https://tc39.github.io/ecma262/#sec-line-terminators 980 isLineTerminator: function (cp) { 981 return (cp === 0x0A) || (cp === 0x0D) || (cp === 0x2028) || (cp === 0x2029); 982 }, 983 // https://tc39.github.io/ecma262/#sec-names-and-keywords 984 isIdentifierStart: function (cp) { 985 return (cp === 0x24) || (cp === 0x5F) || 986 (cp >= 0x41 && cp <= 0x5A) || 987 (cp >= 0x61 && cp <= 0x7A) || 988 (cp === 0x5C) || 989 ((cp >= 0x80) && Regex.NonAsciiIdentifierStart.test(exports.Character.fromCodePoint(cp))); 990 }, 991 isIdentifierPart: function (cp) { 992 return (cp === 0x24) || (cp === 0x5F) || 993 (cp >= 0x41 && cp <= 0x5A) || 994 (cp >= 0x61 && cp <= 0x7A) || 995 (cp >= 0x30 && cp <= 0x39) || 996 (cp === 0x5C) || 997 ((cp >= 0x80) && Regex.NonAsciiIdentifierPart.test(exports.Character.fromCodePoint(cp))); 998 }, 999 // https://tc39.github.io/ecma262/#sec-literals-numeric-literals 1000 isDecimalDigit: function (cp) { 1001 return (cp >= 0x30 && cp <= 0x39); // 0..9 1002 }, 1003 isHexDigit: function (cp) { 1004 return (cp >= 0x30 && cp <= 0x39) || 1005 (cp >= 0x41 && cp <= 0x46) || 1006 (cp >= 0x61 && cp <= 0x66); // a..f 1007 }, 1008 isOctalDigit: function (cp) { 1009 return (cp >= 0x30 && cp <= 0x37); // 0..7 1010 } 1011 }; 1012 1013 1014 /***/ }, 1015 /* 5 */ 1016 /***/ function(module, exports, __webpack_require__) { 1017 1018 "use strict"; 1019 Object.defineProperty(exports, "__esModule", { value: true }); 1020 var jsx_syntax_1 = __webpack_require__(6); 1021 /* tslint:disable:max-classes-per-file */ 1022 var JSXClosingElement = (function () { 1023 function JSXClosingElement(name) { 1024 this.type = jsx_syntax_1.JSXSyntax.JSXClosingElement; 1025 this.name = name; 1026 } 1027 return JSXClosingElement; 1028 }()); 1029 exports.JSXClosingElement = JSXClosingElement; 1030 var JSXElement = (function () { 1031 function JSXElement(openingElement, children, closingElement) { 1032 this.type = jsx_syntax_1.JSXSyntax.JSXElement; 1033 this.openingElement = openingElement; 1034 this.children = children; 1035 this.closingElement = closingElement; 1036 } 1037 return JSXElement; 1038 }()); 1039 exports.JSXElement = JSXElement; 1040 var JSXEmptyExpression = (function () { 1041 function JSXEmptyExpression() { 1042 this.type = jsx_syntax_1.JSXSyntax.JSXEmptyExpression; 1043 } 1044 return JSXEmptyExpression; 1045 }()); 1046 exports.JSXEmptyExpression = JSXEmptyExpression; 1047 var JSXExpressionContainer = (function () { 1048 function JSXExpressionContainer(expression) { 1049 this.type = jsx_syntax_1.JSXSyntax.JSXExpressionContainer; 1050 this.expression = expression; 1051 } 1052 return JSXExpressionContainer; 1053 }()); 1054 exports.JSXExpressionContainer = JSXExpressionContainer; 1055 var JSXIdentifier = (function () { 1056 function JSXIdentifier(name) { 1057 this.type = jsx_syntax_1.JSXSyntax.JSXIdentifier; 1058 this.name = name; 1059 } 1060 return JSXIdentifier; 1061 }()); 1062 exports.JSXIdentifier = JSXIdentifier; 1063 var JSXMemberExpression = (function () { 1064 function JSXMemberExpression(object, property) { 1065 this.type = jsx_syntax_1.JSXSyntax.JSXMemberExpression; 1066 this.object = object; 1067 this.property = property; 1068 } 1069 return JSXMemberExpression; 1070 }()); 1071 exports.JSXMemberExpression = JSXMemberExpression; 1072 var JSXAttribute = (function () { 1073 function JSXAttribute(name, value) { 1074 this.type = jsx_syntax_1.JSXSyntax.JSXAttribute; 1075 this.name = name; 1076 this.value = value; 1077 } 1078 return JSXAttribute; 1079 }()); 1080 exports.JSXAttribute = JSXAttribute; 1081 var JSXNamespacedName = (function () { 1082 function JSXNamespacedName(namespace, name) { 1083 this.type = jsx_syntax_1.JSXSyntax.JSXNamespacedName; 1084 this.namespace = namespace; 1085 this.name = name; 1086 } 1087 return JSXNamespacedName; 1088 }()); 1089 exports.JSXNamespacedName = JSXNamespacedName; 1090 var JSXOpeningElement = (function () { 1091 function JSXOpeningElement(name, selfClosing, attributes) { 1092 this.type = jsx_syntax_1.JSXSyntax.JSXOpeningElement; 1093 this.name = name; 1094 this.selfClosing = selfClosing; 1095 this.attributes = attributes; 1096 } 1097 return JSXOpeningElement; 1098 }()); 1099 exports.JSXOpeningElement = JSXOpeningElement; 1100 var JSXSpreadAttribute = (function () { 1101 function JSXSpreadAttribute(argument) { 1102 this.type = jsx_syntax_1.JSXSyntax.JSXSpreadAttribute; 1103 this.argument = argument; 1104 } 1105 return JSXSpreadAttribute; 1106 }()); 1107 exports.JSXSpreadAttribute = JSXSpreadAttribute; 1108 var JSXText = (function () { 1109 function JSXText(value, raw) { 1110 this.type = jsx_syntax_1.JSXSyntax.JSXText; 1111 this.value = value; 1112 this.raw = raw; 1113 } 1114 return JSXText; 1115 }()); 1116 exports.JSXText = JSXText; 1117 1118 1119 /***/ }, 1120 /* 6 */ 1121 /***/ function(module, exports) { 1122 1123 "use strict"; 1124 Object.defineProperty(exports, "__esModule", { value: true }); 1125 exports.JSXSyntax = { 1126 JSXAttribute: 'JSXAttribute', 1127 JSXClosingElement: 'JSXClosingElement', 1128 JSXElement: 'JSXElement', 1129 JSXEmptyExpression: 'JSXEmptyExpression', 1130 JSXExpressionContainer: 'JSXExpressionContainer', 1131 JSXIdentifier: 'JSXIdentifier', 1132 JSXMemberExpression: 'JSXMemberExpression', 1133 JSXNamespacedName: 'JSXNamespacedName', 1134 JSXOpeningElement: 'JSXOpeningElement', 1135 JSXSpreadAttribute: 'JSXSpreadAttribute', 1136 JSXText: 'JSXText' 1137 }; 1138 1139 1140 /***/ }, 1141 /* 7 */ 1142 /***/ function(module, exports, __webpack_require__) { 1143 1144 "use strict"; 1145 Object.defineProperty(exports, "__esModule", { value: true }); 1146 var syntax_1 = __webpack_require__(2); 1147 /* tslint:disable:max-classes-per-file */ 1148 var ArrayExpression = (function () { 1149 function ArrayExpression(elements) { 1150 this.type = syntax_1.Syntax.ArrayExpression; 1151 this.elements = elements; 1152 } 1153 return ArrayExpression; 1154 }()); 1155 exports.ArrayExpression = ArrayExpression; 1156 var ArrayPattern = (function () { 1157 function ArrayPattern(elements) { 1158 this.type = syntax_1.Syntax.ArrayPattern; 1159 this.elements = elements; 1160 } 1161 return ArrayPattern; 1162 }()); 1163 exports.ArrayPattern = ArrayPattern; 1164 var ArrowFunctionExpression = (function () { 1165 function ArrowFunctionExpression(params, body, expression) { 1166 this.type = syntax_1.Syntax.ArrowFunctionExpression; 1167 this.id = null; 1168 this.params = params; 1169 this.body = body; 1170 this.generator = false; 1171 this.expression = expression; 1172 this.async = false; 1173 } 1174 return ArrowFunctionExpression; 1175 }()); 1176 exports.ArrowFunctionExpression = ArrowFunctionExpression; 1177 var AssignmentExpression = (function () { 1178 function AssignmentExpression(operator, left, right) { 1179 this.type = syntax_1.Syntax.AssignmentExpression; 1180 this.operator = operator; 1181 this.left = left; 1182 this.right = right; 1183 } 1184 return AssignmentExpression; 1185 }()); 1186 exports.AssignmentExpression = AssignmentExpression; 1187 var AssignmentPattern = (function () { 1188 function AssignmentPattern(left, right) { 1189 this.type = syntax_1.Syntax.AssignmentPattern; 1190 this.left = left; 1191 this.right = right; 1192 } 1193 return AssignmentPattern; 1194 }()); 1195 exports.AssignmentPattern = AssignmentPattern; 1196 var AsyncArrowFunctionExpression = (function () { 1197 function AsyncArrowFunctionExpression(params, body, expression) { 1198 this.type = syntax_1.Syntax.ArrowFunctionExpression; 1199 this.id = null; 1200 this.params = params; 1201 this.body = body; 1202 this.generator = false; 1203 this.expression = expression; 1204 this.async = true; 1205 } 1206 return AsyncArrowFunctionExpression; 1207 }()); 1208 exports.AsyncArrowFunctionExpression = AsyncArrowFunctionExpression; 1209 var AsyncFunctionDeclaration = (function () { 1210 function AsyncFunctionDeclaration(id, params, body) { 1211 this.type = syntax_1.Syntax.FunctionDeclaration; 1212 this.id = id; 1213 this.params = params; 1214 this.body = body; 1215 this.generator = false; 1216 this.expression = false; 1217 this.async = true; 1218 } 1219 return AsyncFunctionDeclaration; 1220 }()); 1221 exports.AsyncFunctionDeclaration = AsyncFunctionDeclaration; 1222 var AsyncFunctionExpression = (function () { 1223 function AsyncFunctionExpression(id, params, body) { 1224 this.type = syntax_1.Syntax.FunctionExpression; 1225 this.id = id; 1226 this.params = params; 1227 this.body = body; 1228 this.generator = false; 1229 this.expression = false; 1230 this.async = true; 1231 } 1232 return AsyncFunctionExpression; 1233 }()); 1234 exports.AsyncFunctionExpression = AsyncFunctionExpression; 1235 var AwaitExpression = (function () { 1236 function AwaitExpression(argument) { 1237 this.type = syntax_1.Syntax.AwaitExpression; 1238 this.argument = argument; 1239 } 1240 return AwaitExpression; 1241 }()); 1242 exports.AwaitExpression = AwaitExpression; 1243 var BinaryExpression = (function () { 1244 function BinaryExpression(operator, left, right) { 1245 var logical = (operator === '||' || operator === '&&'); 1246 this.type = logical ? syntax_1.Syntax.LogicalExpression : syntax_1.Syntax.BinaryExpression; 1247 this.operator = operator; 1248 this.left = left; 1249 this.right = right; 1250 } 1251 return BinaryExpression; 1252 }()); 1253 exports.BinaryExpression = BinaryExpression; 1254 var BlockStatement = (function () { 1255 function BlockStatement(body) { 1256 this.type = syntax_1.Syntax.BlockStatement; 1257 this.body = body; 1258 } 1259 return BlockStatement; 1260 }()); 1261 exports.BlockStatement = BlockStatement; 1262 var BreakStatement = (function () { 1263 function BreakStatement(label) { 1264 this.type = syntax_1.Syntax.BreakStatement; 1265 this.label = label; 1266 } 1267 return BreakStatement; 1268 }()); 1269 exports.BreakStatement = BreakStatement; 1270 var CallExpression = (function () { 1271 function CallExpression(callee, args) { 1272 this.type = syntax_1.Syntax.CallExpression; 1273 this.callee = callee; 1274 this.arguments = args; 1275 } 1276 return CallExpression; 1277 }()); 1278 exports.CallExpression = CallExpression; 1279 var CatchClause = (function () { 1280 function CatchClause(param, body) { 1281 this.type = syntax_1.Syntax.CatchClause; 1282 this.param = param; 1283 this.body = body; 1284 } 1285 return CatchClause; 1286 }()); 1287 exports.CatchClause = CatchClause; 1288 var ClassBody = (function () { 1289 function ClassBody(body) { 1290 this.type = syntax_1.Syntax.ClassBody; 1291 this.body = body; 1292 } 1293 return ClassBody; 1294 }()); 1295 exports.ClassBody = ClassBody; 1296 var ClassDeclaration = (function () { 1297 function ClassDeclaration(id, superClass, body) { 1298 this.type = syntax_1.Syntax.ClassDeclaration; 1299 this.id = id; 1300 this.superClass = superClass; 1301 this.body = body; 1302 } 1303 return ClassDeclaration; 1304 }()); 1305 exports.ClassDeclaration = ClassDeclaration; 1306 var ClassExpression = (function () { 1307 function ClassExpression(id, superClass, body) { 1308 this.type = syntax_1.Syntax.ClassExpression; 1309 this.id = id; 1310 this.superClass = superClass; 1311 this.body = body; 1312 } 1313 return ClassExpression; 1314 }()); 1315 exports.ClassExpression = ClassExpression; 1316 var ComputedMemberExpression = (function () { 1317 function ComputedMemberExpression(object, property) { 1318 this.type = syntax_1.Syntax.MemberExpression; 1319 this.computed = true; 1320 this.object = object; 1321 this.property = property; 1322 } 1323 return ComputedMemberExpression; 1324 }()); 1325 exports.ComputedMemberExpression = ComputedMemberExpression; 1326 var ConditionalExpression = (function () { 1327 function ConditionalExpression(test, consequent, alternate) { 1328 this.type = syntax_1.Syntax.ConditionalExpression; 1329 this.test = test; 1330 this.consequent = consequent; 1331 this.alternate = alternate; 1332 } 1333 return ConditionalExpression; 1334 }()); 1335 exports.ConditionalExpression = ConditionalExpression; 1336 var ContinueStatement = (function () { 1337 function ContinueStatement(label) { 1338 this.type = syntax_1.Syntax.ContinueStatement; 1339 this.label = label; 1340 } 1341 return ContinueStatement; 1342 }()); 1343 exports.ContinueStatement = ContinueStatement; 1344 var DebuggerStatement = (function () { 1345 function DebuggerStatement() { 1346 this.type = syntax_1.Syntax.DebuggerStatement; 1347 } 1348 return DebuggerStatement; 1349 }()); 1350 exports.DebuggerStatement = DebuggerStatement; 1351 var Directive = (function () { 1352 function Directive(expression, directive) { 1353 this.type = syntax_1.Syntax.ExpressionStatement; 1354 this.expression = expression; 1355 this.directive = directive; 1356 } 1357 return Directive; 1358 }()); 1359 exports.Directive = Directive; 1360 var DoWhileStatement = (function () { 1361 function DoWhileStatement(body, test) { 1362 this.type = syntax_1.Syntax.DoWhileStatement; 1363 this.body = body; 1364 this.test = test; 1365 } 1366 return DoWhileStatement; 1367 }()); 1368 exports.DoWhileStatement = DoWhileStatement; 1369 var EmptyStatement = (function () { 1370 function EmptyStatement() { 1371 this.type = syntax_1.Syntax.EmptyStatement; 1372 } 1373 return EmptyStatement; 1374 }()); 1375 exports.EmptyStatement = EmptyStatement; 1376 var ExportAllDeclaration = (function () { 1377 function ExportAllDeclaration(source) { 1378 this.type = syntax_1.Syntax.ExportAllDeclaration; 1379 this.source = source; 1380 } 1381 return ExportAllDeclaration; 1382 }()); 1383 exports.ExportAllDeclaration = ExportAllDeclaration; 1384 var ExportDefaultDeclaration = (function () { 1385 function ExportDefaultDeclaration(declaration) { 1386 this.type = syntax_1.Syntax.ExportDefaultDeclaration; 1387 this.declaration = declaration; 1388 } 1389 return ExportDefaultDeclaration; 1390 }()); 1391 exports.ExportDefaultDeclaration = ExportDefaultDeclaration; 1392 var ExportNamedDeclaration = (function () { 1393 function ExportNamedDeclaration(declaration, specifiers, source) { 1394 this.type = syntax_1.Syntax.ExportNamedDeclaration; 1395 this.declaration = declaration; 1396 this.specifiers = specifiers; 1397 this.source = source; 1398 } 1399 return ExportNamedDeclaration; 1400 }()); 1401 exports.ExportNamedDeclaration = ExportNamedDeclaration; 1402 var ExportSpecifier = (function () { 1403 function ExportSpecifier(local, exported) { 1404 this.type = syntax_1.Syntax.ExportSpecifier; 1405 this.exported = exported; 1406 this.local = local; 1407 } 1408 return ExportSpecifier; 1409 }()); 1410 exports.ExportSpecifier = ExportSpecifier; 1411 var ExpressionStatement = (function () { 1412 function ExpressionStatement(expression) { 1413 this.type = syntax_1.Syntax.ExpressionStatement; 1414 this.expression = expression; 1415 } 1416 return ExpressionStatement; 1417 }()); 1418 exports.ExpressionStatement = ExpressionStatement; 1419 var ForInStatement = (function () { 1420 function ForInStatement(left, right, body) { 1421 this.type = syntax_1.Syntax.ForInStatement; 1422 this.left = left; 1423 this.right = right; 1424 this.body = body; 1425 this.each = false; 1426 } 1427 return ForInStatement; 1428 }()); 1429 exports.ForInStatement = ForInStatement; 1430 var ForOfStatement = (function () { 1431 function ForOfStatement(left, right, body) { 1432 this.type = syntax_1.Syntax.ForOfStatement; 1433 this.left = left; 1434 this.right = right; 1435 this.body = body; 1436 } 1437 return ForOfStatement; 1438 }()); 1439 exports.ForOfStatement = ForOfStatement; 1440 var ForStatement = (function () { 1441 function ForStatement(init, test, update, body) { 1442 this.type = syntax_1.Syntax.ForStatement; 1443 this.init = init; 1444 this.test = test; 1445 this.update = update; 1446 this.body = body; 1447 } 1448 return ForStatement; 1449 }()); 1450 exports.ForStatement = ForStatement; 1451 var FunctionDeclaration = (function () { 1452 function FunctionDeclaration(id, params, body, generator) { 1453 this.type = syntax_1.Syntax.FunctionDeclaration; 1454 this.id = id; 1455 this.params = params; 1456 this.body = body; 1457 this.generator = generator; 1458 this.expression = false; 1459 this.async = false; 1460 } 1461 return FunctionDeclaration; 1462 }()); 1463 exports.FunctionDeclaration = FunctionDeclaration; 1464 var FunctionExpression = (function () { 1465 function FunctionExpression(id, params, body, generator) { 1466 this.type = syntax_1.Syntax.FunctionExpression; 1467 this.id = id; 1468 this.params = params; 1469 this.body = body; 1470 this.generator = generator; 1471 this.expression = false; 1472 this.async = false; 1473 } 1474 return FunctionExpression; 1475 }()); 1476 exports.FunctionExpression = FunctionExpression; 1477 var Identifier = (function () { 1478 function Identifier(name) { 1479 this.type = syntax_1.Syntax.Identifier; 1480 this.name = name; 1481 } 1482 return Identifier; 1483 }()); 1484 exports.Identifier = Identifier; 1485 var IfStatement = (function () { 1486 function IfStatement(test, consequent, alternate) { 1487 this.type = syntax_1.Syntax.IfStatement; 1488 this.test = test; 1489 this.consequent = consequent; 1490 this.alternate = alternate; 1491 } 1492 return IfStatement; 1493 }()); 1494 exports.IfStatement = IfStatement; 1495 var ImportDeclaration = (function () { 1496 function ImportDeclaration(specifiers, source) { 1497 this.type = syntax_1.Syntax.ImportDeclaration; 1498 this.specifiers = specifiers; 1499 this.source = source; 1500 } 1501 return ImportDeclaration; 1502 }()); 1503 exports.ImportDeclaration = ImportDeclaration; 1504 var ImportDefaultSpecifier = (function () { 1505 function ImportDefaultSpecifier(local) { 1506 this.type = syntax_1.Syntax.ImportDefaultSpecifier; 1507 this.local = local; 1508 } 1509 return ImportDefaultSpecifier; 1510 }()); 1511 exports.ImportDefaultSpecifier = ImportDefaultSpecifier; 1512 var ImportNamespaceSpecifier = (function () { 1513 function ImportNamespaceSpecifier(local) { 1514 this.type = syntax_1.Syntax.ImportNamespaceSpecifier; 1515 this.local = local; 1516 } 1517 return ImportNamespaceSpecifier; 1518 }()); 1519 exports.ImportNamespaceSpecifier = ImportNamespaceSpecifier; 1520 var ImportSpecifier = (function () { 1521 function ImportSpecifier(local, imported) { 1522 this.type = syntax_1.Syntax.ImportSpecifier; 1523 this.local = local; 1524 this.imported = imported; 1525 } 1526 return ImportSpecifier; 1527 }()); 1528 exports.ImportSpecifier = ImportSpecifier; 1529 var LabeledStatement = (function () { 1530 function LabeledStatement(label, body) { 1531 this.type = syntax_1.Syntax.LabeledStatement; 1532 this.label = label; 1533 this.body = body; 1534 } 1535 return LabeledStatement; 1536 }()); 1537 exports.LabeledStatement = LabeledStatement; 1538 var Literal = (function () { 1539 function Literal(value, raw) { 1540 this.type = syntax_1.Syntax.Literal; 1541 this.value = value; 1542 this.raw = raw; 1543 } 1544 return Literal; 1545 }()); 1546 exports.Literal = Literal; 1547 var MetaProperty = (function () { 1548 function MetaProperty(meta, property) { 1549 this.type = syntax_1.Syntax.MetaProperty; 1550 this.meta = meta; 1551 this.property = property; 1552 } 1553 return MetaProperty; 1554 }()); 1555 exports.MetaProperty = MetaProperty; 1556 var MethodDefinition = (function () { 1557 function MethodDefinition(key, computed, value, kind, isStatic) { 1558 this.type = syntax_1.Syntax.MethodDefinition; 1559 this.key = key; 1560 this.computed = computed; 1561 this.value = value; 1562 this.kind = kind; 1563 this.static = isStatic; 1564 } 1565 return MethodDefinition; 1566 }()); 1567 exports.MethodDefinition = MethodDefinition; 1568 var Module = (function () { 1569 function Module(body) { 1570 this.type = syntax_1.Syntax.Program; 1571 this.body = body; 1572 this.sourceType = 'module'; 1573 } 1574 return Module; 1575 }()); 1576 exports.Module = Module; 1577 var NewExpression = (function () { 1578 function NewExpression(callee, args) { 1579 this.type = syntax_1.Syntax.NewExpression; 1580 this.callee = callee; 1581 this.arguments = args; 1582 } 1583 return NewExpression; 1584 }()); 1585 exports.NewExpression = NewExpression; 1586 var ObjectExpression = (function () { 1587 function ObjectExpression(properties) { 1588 this.type = syntax_1.Syntax.ObjectExpression; 1589 this.properties = properties; 1590 } 1591 return ObjectExpression; 1592 }()); 1593 exports.ObjectExpression = ObjectExpression; 1594 var ObjectPattern = (function () { 1595 function ObjectPattern(properties) { 1596 this.type = syntax_1.Syntax.ObjectPattern; 1597 this.properties = properties; 1598 } 1599 return ObjectPattern; 1600 }()); 1601 exports.ObjectPattern = ObjectPattern; 1602 var Property = (function () { 1603 function Property(kind, key, computed, value, method, shorthand) { 1604 this.type = syntax_1.Syntax.Property; 1605 this.key = key; 1606 this.computed = computed; 1607 this.value = value; 1608 this.kind = kind; 1609 this.method = method; 1610 this.shorthand = shorthand; 1611 } 1612 return Property; 1613 }()); 1614 exports.Property = Property; 1615 var RegexLiteral = (function () { 1616 function RegexLiteral(value, raw, pattern, flags) { 1617 this.type = syntax_1.Syntax.Literal; 1618 this.value = value; 1619 this.raw = raw; 1620 this.regex = { pattern: pattern, flags: flags }; 1621 } 1622 return RegexLiteral; 1623 }()); 1624 exports.RegexLiteral = RegexLiteral; 1625 var RestElement = (function () { 1626 function RestElement(argument) { 1627 this.type = syntax_1.Syntax.RestElement; 1628 this.argument = argument; 1629 } 1630 return RestElement; 1631 }()); 1632 exports.RestElement = RestElement; 1633 var ReturnStatement = (function () { 1634 function ReturnStatement(argument) { 1635 this.type = syntax_1.Syntax.ReturnStatement; 1636 this.argument = argument; 1637 } 1638 return ReturnStatement; 1639 }()); 1640 exports.ReturnStatement = ReturnStatement; 1641 var Script = (function () { 1642 function Script(body) { 1643 this.type = syntax_1.Syntax.Program; 1644 this.body = body; 1645 this.sourceType = 'script'; 1646 } 1647 return Script; 1648 }()); 1649 exports.Script = Script; 1650 var SequenceExpression = (function () { 1651 function SequenceExpression(expressions) { 1652 this.type = syntax_1.Syntax.SequenceExpression; 1653 this.expressions = expressions; 1654 } 1655 return SequenceExpression; 1656 }()); 1657 exports.SequenceExpression = SequenceExpression; 1658 var SpreadElement = (function () { 1659 function SpreadElement(argument) { 1660 this.type = syntax_1.Syntax.SpreadElement; 1661 this.argument = argument; 1662 } 1663 return SpreadElement; 1664 }()); 1665 exports.SpreadElement = SpreadElement; 1666 var StaticMemberExpression = (function () { 1667 function StaticMemberExpression(object, property) { 1668 this.type = syntax_1.Syntax.MemberExpression; 1669 this.computed = false; 1670 this.object = object; 1671 this.property = property; 1672 } 1673 return StaticMemberExpression; 1674 }()); 1675 exports.StaticMemberExpression = StaticMemberExpression; 1676 var Super = (function () { 1677 function Super() { 1678 this.type = syntax_1.Syntax.Super; 1679 } 1680 return Super; 1681 }()); 1682 exports.Super = Super; 1683 var SwitchCase = (function () { 1684 function SwitchCase(test, consequent) { 1685 this.type = syntax_1.Syntax.SwitchCase; 1686 this.test = test; 1687 this.consequent = consequent; 1688 } 1689 return SwitchCase; 1690 }()); 1691 exports.SwitchCase = SwitchCase; 1692 var SwitchStatement = (function () { 1693 function SwitchStatement(discriminant, cases) { 1694 this.type = syntax_1.Syntax.SwitchStatement; 1695 this.discriminant = discriminant; 1696 this.cases = cases; 1697 } 1698 return SwitchStatement; 1699 }()); 1700 exports.SwitchStatement = SwitchStatement; 1701 var TaggedTemplateExpression = (function () { 1702 function TaggedTemplateExpression(tag, quasi) { 1703 this.type = syntax_1.Syntax.TaggedTemplateExpression; 1704 this.tag = tag; 1705 this.quasi = quasi; 1706 } 1707 return TaggedTemplateExpression; 1708 }()); 1709 exports.TaggedTemplateExpression = TaggedTemplateExpression; 1710 var TemplateElement = (function () { 1711 function TemplateElement(value, tail) { 1712 this.type = syntax_1.Syntax.TemplateElement; 1713 this.value = value; 1714 this.tail = tail; 1715 } 1716 return TemplateElement; 1717 }()); 1718 exports.TemplateElement = TemplateElement; 1719 var TemplateLiteral = (function () { 1720 function TemplateLiteral(quasis, expressions) { 1721 this.type = syntax_1.Syntax.TemplateLiteral; 1722 this.quasis = quasis; 1723 this.expressions = expressions; 1724 } 1725 return TemplateLiteral; 1726 }()); 1727 exports.TemplateLiteral = TemplateLiteral; 1728 var ThisExpression = (function () { 1729 function ThisExpression() { 1730 this.type = syntax_1.Syntax.ThisExpression; 1731 } 1732 return ThisExpression; 1733 }()); 1734 exports.ThisExpression = ThisExpression; 1735 var ThrowStatement = (function () { 1736 function ThrowStatement(argument) { 1737 this.type = syntax_1.Syntax.ThrowStatement; 1738 this.argument = argument; 1739 } 1740 return ThrowStatement; 1741 }()); 1742 exports.ThrowStatement = ThrowStatement; 1743 var TryStatement = (function () { 1744 function TryStatement(block, handler, finalizer) { 1745 this.type = syntax_1.Syntax.TryStatement; 1746 this.block = block; 1747 this.handler = handler; 1748 this.finalizer = finalizer; 1749 } 1750 return TryStatement; 1751 }()); 1752 exports.TryStatement = TryStatement; 1753 var UnaryExpression = (function () { 1754 function UnaryExpression(operator, argument) { 1755 this.type = syntax_1.Syntax.UnaryExpression; 1756 this.operator = operator; 1757 this.argument = argument; 1758 this.prefix = true; 1759 } 1760 return UnaryExpression; 1761 }()); 1762 exports.UnaryExpression = UnaryExpression; 1763 var UpdateExpression = (function () { 1764 function UpdateExpression(operator, argument, prefix) { 1765 this.type = syntax_1.Syntax.UpdateExpression; 1766 this.operator = operator; 1767 this.argument = argument; 1768 this.prefix = prefix; 1769 } 1770 return UpdateExpression; 1771 }()); 1772 exports.UpdateExpression = UpdateExpression; 1773 var VariableDeclaration = (function () { 1774 function VariableDeclaration(declarations, kind) { 1775 this.type = syntax_1.Syntax.VariableDeclaration; 1776 this.declarations = declarations; 1777 this.kind = kind; 1778 } 1779 return VariableDeclaration; 1780 }()); 1781 exports.VariableDeclaration = VariableDeclaration; 1782 var VariableDeclarator = (function () { 1783 function VariableDeclarator(id, init) { 1784 this.type = syntax_1.Syntax.VariableDeclarator; 1785 this.id = id; 1786 this.init = init; 1787 } 1788 return VariableDeclarator; 1789 }()); 1790 exports.VariableDeclarator = VariableDeclarator; 1791 var WhileStatement = (function () { 1792 function WhileStatement(test, body) { 1793 this.type = syntax_1.Syntax.WhileStatement; 1794 this.test = test; 1795 this.body = body; 1796 } 1797 return WhileStatement; 1798 }()); 1799 exports.WhileStatement = WhileStatement; 1800 var WithStatement = (function () { 1801 function WithStatement(object, body) { 1802 this.type = syntax_1.Syntax.WithStatement; 1803 this.object = object; 1804 this.body = body; 1805 } 1806 return WithStatement; 1807 }()); 1808 exports.WithStatement = WithStatement; 1809 var YieldExpression = (function () { 1810 function YieldExpression(argument, delegate) { 1811 this.type = syntax_1.Syntax.YieldExpression; 1812 this.argument = argument; 1813 this.delegate = delegate; 1814 } 1815 return YieldExpression; 1816 }()); 1817 exports.YieldExpression = YieldExpression; 1818 1819 1820 /***/ }, 1821 /* 8 */ 1822 /***/ function(module, exports, __webpack_require__) { 1823 1824 "use strict"; 1825 Object.defineProperty(exports, "__esModule", { value: true }); 1826 var assert_1 = __webpack_require__(9); 1827 var error_handler_1 = __webpack_require__(10); 1828 var messages_1 = __webpack_require__(11); 1829 var Node = __webpack_require__(7); 1830 var scanner_1 = __webpack_require__(12); 1831 var syntax_1 = __webpack_require__(2); 1832 var token_1 = __webpack_require__(13); 1833 var ArrowParameterPlaceHolder = 'ArrowParameterPlaceHolder'; 1834 var Parser = (function () { 1835 function Parser(code, options, delegate) { 1836 if (options === void 0) { options = {}; } 1837 this.config = { 1838 range: (typeof options.range === 'boolean') && options.range, 1839 loc: (typeof options.loc === 'boolean') && options.loc, 1840 source: null, 1841 tokens: (typeof options.tokens === 'boolean') && options.tokens, 1842 comment: (typeof options.comment === 'boolean') && options.comment, 1843 tolerant: (typeof options.tolerant === 'boolean') && options.tolerant 1844 }; 1845 if (this.config.loc && options.source && options.source !== null) { 1846 this.config.source = String(options.source); 1847 } 1848 this.delegate = delegate; 1849 this.errorHandler = new error_handler_1.ErrorHandler(); 1850 this.errorHandler.tolerant = this.config.tolerant; 1851 this.scanner = new scanner_1.Scanner(code, this.errorHandler); 1852 this.scanner.trackComment = this.config.comment; 1853 this.operatorPrecedence = { 1854 ')': 0, 1855 ';': 0, 1856 ',': 0, 1857 '=': 0, 1858 ']': 0, 1859 '||': 1, 1860 '&&': 2, 1861 '|': 3, 1862 '^': 4, 1863 '&': 5, 1864 '==': 6, 1865 '!=': 6, 1866 '===': 6, 1867 '!==': 6, 1868 '<': 7, 1869 '>': 7, 1870 '<=': 7, 1871 '>=': 7, 1872 '<<': 8, 1873 '>>': 8, 1874 '>>>': 8, 1875 '+': 9, 1876 '-': 9, 1877 '*': 11, 1878 '/': 11, 1879 '%': 11 1880 }; 1881 this.lookahead = { 1882 type: 2 /* EOF */, 1883 value: '', 1884 lineNumber: this.scanner.lineNumber, 1885 lineStart: 0, 1886 start: 0, 1887 end: 0 1888 }; 1889 this.hasLineTerminator = false; 1890 this.context = { 1891 isModule: false, 1892 await: false, 1893 allowIn: true, 1894 allowStrictDirective: true, 1895 allowYield: true, 1896 firstCoverInitializedNameError: null, 1897 isAssignmentTarget: false, 1898 isBindingElement: false, 1899 inFunctionBody: false, 1900 inIteration: false, 1901 inSwitch: false, 1902 labelSet: {}, 1903 strict: false 1904 }; 1905 this.tokens = []; 1906 this.startMarker = { 1907 index: 0, 1908 line: this.scanner.lineNumber, 1909 column: 0 1910 }; 1911 this.lastMarker = { 1912 index: 0, 1913 line: this.scanner.lineNumber, 1914 column: 0 1915 }; 1916 this.nextToken(); 1917 this.lastMarker = { 1918 index: this.scanner.index, 1919 line: this.scanner.lineNumber, 1920 column: this.scanner.index - this.scanner.lineStart 1921 }; 1922 } 1923 Parser.prototype.throwError = function (messageFormat) { 1924 var values = []; 1925 for (var _i = 1; _i < arguments.length; _i++) { 1926 values[_i - 1] = arguments[_i]; 1927 } 1928 var args = Array.prototype.slice.call(arguments, 1); 1929 var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) { 1930 assert_1.assert(idx < args.length, 'Message reference must be in range'); 1931 return args[idx]; 1932 }); 1933 var index = this.lastMarker.index; 1934 var line = this.lastMarker.line; 1935 var column = this.lastMarker.column + 1; 1936 throw this.errorHandler.createError(index, line, column, msg); 1937 }; 1938 Parser.prototype.tolerateError = function (messageFormat) { 1939 var values = []; 1940 for (var _i = 1; _i < arguments.length; _i++) { 1941 values[_i - 1] = arguments[_i]; 1942 } 1943 var args = Array.prototype.slice.call(arguments, 1); 1944 var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) { 1945 assert_1.assert(idx < args.length, 'Message reference must be in range'); 1946 return args[idx]; 1947 }); 1948 var index = this.lastMarker.index; 1949 var line = this.scanner.lineNumber; 1950 var column = this.lastMarker.column + 1; 1951 this.errorHandler.tolerateError(index, line, column, msg); 1952 }; 1953 // Throw an exception because of the token. 1954 Parser.prototype.unexpectedTokenError = function (token, message) { 1955 var msg = message || messages_1.Messages.UnexpectedToken; 1956 var value; 1957 if (token) { 1958 if (!message) { 1959 msg = (token.type === 2 /* EOF */) ? messages_1.Messages.UnexpectedEOS : 1960 (token.type === 3 /* Identifier */) ? messages_1.Messages.UnexpectedIdentifier : 1961 (token.type === 6 /* NumericLiteral */) ? messages_1.Messages.UnexpectedNumber : 1962 (token.type === 8 /* StringLiteral */) ? messages_1.Messages.UnexpectedString : 1963 (token.type === 10 /* Template */) ? messages_1.Messages.UnexpectedTemplate : 1964 messages_1.Messages.UnexpectedToken; 1965 if (token.type === 4 /* Keyword */) { 1966 if (this.scanner.isFutureReservedWord(token.value)) { 1967 msg = messages_1.Messages.UnexpectedReserved; 1968 } 1969 else if (this.context.strict && this.scanner.isStrictModeReservedWord(token.value)) { 1970 msg = messages_1.Messages.StrictReservedWord; 1971 } 1972 } 1973 } 1974 value = token.value; 1975 } 1976 else { 1977 value = 'ILLEGAL'; 1978 } 1979 msg = msg.replace('%0', value); 1980 if (token && typeof token.lineNumber === 'number') { 1981 var index = token.start; 1982 var line = token.lineNumber; 1983 var lastMarkerLineStart = this.lastMarker.index - this.lastMarker.column; 1984 var column = token.start - lastMarkerLineStart + 1; 1985 return this.errorHandler.createError(index, line, column, msg); 1986 } 1987 else { 1988 var index = this.lastMarker.index; 1989 var line = this.lastMarker.line; 1990 var column = this.lastMarker.column + 1; 1991 return this.errorHandler.createError(index, line, column, msg); 1992 } 1993 }; 1994 Parser.prototype.throwUnexpectedToken = function (token, message) { 1995 throw this.unexpectedTokenError(token, message); 1996 }; 1997 Parser.prototype.tolerateUnexpectedToken = function (token, message) { 1998 this.errorHandler.tolerate(this.unexpectedTokenError(token, message)); 1999 }; 2000 Parser.prototype.collectComments = function () { 2001 if (!this.config.comment) { 2002 this.scanner.scanComments(); 2003 } 2004 else { 2005 var comments = this.scanner.scanComments(); 2006 if (comments.length > 0 && this.delegate) { 2007 for (var i = 0; i < comments.length; ++i) { 2008 var e = comments[i]; 2009 var node = void 0; 2010 node = { 2011 type: e.multiLine ? 'BlockComment' : 'LineComment', 2012 value: this.scanner.source.slice(e.slice[0], e.slice[1]) 2013 }; 2014 if (this.config.range) { 2015 node.range = e.range; 2016 } 2017 if (this.config.loc) { 2018 node.loc = e.loc; 2019 } 2020 var metadata = { 2021 start: { 2022 line: e.loc.start.line, 2023 column: e.loc.start.column, 2024 offset: e.range[0] 2025 }, 2026 end: { 2027 line: e.loc.end.line, 2028 column: e.loc.end.column, 2029 offset: e.range[1] 2030 } 2031 }; 2032 this.delegate(node, metadata); 2033 } 2034 } 2035 } 2036 }; 2037 // From internal representation to an external structure 2038 Parser.prototype.getTokenRaw = function (token) { 2039 return this.scanner.source.slice(token.start, token.end); 2040 }; 2041 Parser.prototype.convertToken = function (token) { 2042 var t = { 2043 type: token_1.TokenName[token.type], 2044 value: this.getTokenRaw(token) 2045 }; 2046 if (this.config.range) { 2047 t.range = [token.start, token.end]; 2048 } 2049 if (this.config.loc) { 2050 t.loc = { 2051 start: { 2052 line: this.startMarker.line, 2053 column: this.startMarker.column 2054 }, 2055 end: { 2056 line: this.scanner.lineNumber, 2057 column: this.scanner.index - this.scanner.lineStart 2058 } 2059 }; 2060 } 2061 if (token.type === 9 /* RegularExpression */) { 2062 var pattern = token.pattern; 2063 var flags = token.flags; 2064 t.regex = { pattern: pattern, flags: flags }; 2065 } 2066 return t; 2067 }; 2068 Parser.prototype.nextToken = function () { 2069 var token = this.lookahead; 2070 this.lastMarker.index = this.scanner.index; 2071 this.lastMarker.line = this.scanner.lineNumber; 2072 this.lastMarker.column = this.scanner.index - this.scanner.lineStart; 2073 this.collectComments(); 2074 if (this.scanner.index !== this.startMarker.index) { 2075 this.startMarker.index = this.scanner.index; 2076 this.startMarker.line = this.scanner.lineNumber; 2077 this.startMarker.column = this.scanner.index - this.scanner.lineStart; 2078 } 2079 var next = this.scanner.lex(); 2080 this.hasLineTerminator = (token.lineNumber !== next.lineNumber); 2081 if (next && this.context.strict && next.type === 3 /* Identifier */) { 2082 if (this.scanner.isStrictModeReservedWord(next.value)) { 2083 next.type = 4 /* Keyword */; 2084 } 2085 } 2086 this.lookahead = next; 2087 if (this.config.tokens && next.type !== 2 /* EOF */) { 2088 this.tokens.push(this.convertToken(next)); 2089 } 2090 return token; 2091 }; 2092 Parser.prototype.nextRegexToken = function () { 2093 this.collectComments(); 2094 var token = this.scanner.scanRegExp(); 2095 if (this.config.tokens) { 2096 // Pop the previous token, '/' or '/=' 2097 // This is added from the lookahead token. 2098 this.tokens.pop(); 2099 this.tokens.push(this.convertToken(token)); 2100 } 2101 // Prime the next lookahead. 2102 this.lookahead = token; 2103 this.nextToken(); 2104 return token; 2105 }; 2106 Parser.prototype.createNode = function () { 2107 return { 2108 index: this.startMarker.index, 2109 line: this.startMarker.line, 2110 column: this.startMarker.column 2111 }; 2112 }; 2113 Parser.prototype.startNode = function (token) { 2114 return { 2115 index: token.start, 2116 line: token.lineNumber, 2117 column: token.start - token.lineStart 2118 }; 2119 }; 2120 Parser.prototype.finalize = function (marker, node) { 2121 if (this.config.range) { 2122 node.range = [marker.index, this.lastMarker.index]; 2123 } 2124 if (this.config.loc) { 2125 node.loc = { 2126 start: { 2127 line: marker.line, 2128 column: marker.column, 2129 }, 2130 end: { 2131 line: this.lastMarker.line, 2132 column: this.lastMarker.column 2133 } 2134 }; 2135 if (this.config.source) { 2136 node.loc.source = this.config.source; 2137 } 2138 } 2139 if (this.delegate) { 2140 var metadata = { 2141 start: { 2142 line: marker.line, 2143 column: marker.column, 2144 offset: marker.index 2145 }, 2146 end: { 2147 line: this.lastMarker.line, 2148 column: this.lastMarker.column, 2149 offset: this.lastMarker.index 2150 } 2151 }; 2152 this.delegate(node, metadata); 2153 } 2154 return node; 2155 }; 2156 // Expect the next token to match the specified punctuator. 2157 // If not, an exception will be thrown. 2158 Parser.prototype.expect = function (value) { 2159 var token = this.nextToken(); 2160 if (token.type !== 7 /* Punctuator */ || token.value !== value) { 2161 this.throwUnexpectedToken(token); 2162 } 2163 }; 2164 // Quietly expect a comma when in tolerant mode, otherwise delegates to expect(). 2165 Parser.prototype.expectCommaSeparator = function () { 2166 if (this.config.tolerant) { 2167 var token = this.lookahead; 2168 if (token.type === 7 /* Punctuator */ && token.value === ',') { 2169 this.nextToken(); 2170 } 2171 else if (token.type === 7 /* Punctuator */ && token.value === ';') { 2172 this.nextToken(); 2173 this.tolerateUnexpectedToken(token); 2174 } 2175 else { 2176 this.tolerateUnexpectedToken(token, messages_1.Messages.UnexpectedToken); 2177 } 2178 } 2179 else { 2180 this.expect(','); 2181 } 2182 }; 2183 // Expect the next token to match the specified keyword. 2184 // If not, an exception will be thrown. 2185 Parser.prototype.expectKeyword = function (keyword) { 2186 var token = this.nextToken(); 2187 if (token.type !== 4 /* Keyword */ || token.value !== keyword) { 2188 this.throwUnexpectedToken(token); 2189 } 2190 }; 2191 // Return true if the next token matches the specified punctuator. 2192 Parser.prototype.match = function (value) { 2193 return this.lookahead.type === 7 /* Punctuator */ && this.lookahead.value === value; 2194 }; 2195 // Return true if the next token matches the specified keyword 2196 Parser.prototype.matchKeyword = function (keyword) { 2197 return this.lookahead.type === 4 /* Keyword */ && this.lookahead.value === keyword; 2198 }; 2199 // Return true if the next token matches the specified contextual keyword 2200 // (where an identifier is sometimes a keyword depending on the context) 2201 Parser.prototype.matchContextualKeyword = function (keyword) { 2202 return this.lookahead.type === 3 /* Identifier */ && this.lookahead.value === keyword; 2203 }; 2204 // Return true if the next token is an assignment operator 2205 Parser.prototype.matchAssign = function () { 2206 if (this.lookahead.type !== 7 /* Punctuator */) { 2207 return false; 2208 } 2209 var op = this.lookahead.value; 2210 return op === '=' || 2211 op === '*=' || 2212 op === '**=' || 2213 op === '/=' || 2214 op === '%=' || 2215 op === '+=' || 2216 op === '-=' || 2217 op === '<<=' || 2218 op === '>>=' || 2219 op === '>>>=' || 2220 op === '&=' || 2221 op === '^=' || 2222 op === '|='; 2223 }; 2224 // Cover grammar support. 2225 // 2226 // When an assignment expression position starts with an left parenthesis, the determination of the type 2227 // of the syntax is to be deferred arbitrarily long until the end of the parentheses pair (plus a lookahead) 2228 // or the first comma. This situation also defers the determination of all the expressions nested in the pair. 2229 // 2230 // There are three productions that can be parsed in a parentheses pair that needs to be determined 2231 // after the outermost pair is closed. They are: 2232 // 2233 // 1. AssignmentExpression 2234 // 2. BindingElements 2235 // 3. AssignmentTargets 2236 // 2237 // In order to avoid exponential backtracking, we use two flags to denote if the production can be 2238 // binding element or assignment target. 2239 // 2240 // The three productions have the relationship: 2241 // 2242 // BindingElements ⊆ AssignmentTargets ⊆ AssignmentExpression 2243 // 2244 // with a single exception that CoverInitializedName when used directly in an Expression, generates 2245 // an early error. Therefore, we need the third state, firstCoverInitializedNameError, to track the 2246 // first usage of CoverInitializedName and report it when we reached the end of the parentheses pair. 2247 // 2248 // isolateCoverGrammar function runs the given parser function with a new cover grammar context, and it does not 2249 // effect the current flags. This means the production the parser parses is only used as an expression. Therefore 2250 // the CoverInitializedName check is conducted. 2251 // 2252 // inheritCoverGrammar function runs the given parse function with a new cover grammar context, and it propagates 2253 // the flags outside of the parser. This means the production the parser parses is used as a part of a potential 2254 // pattern. The CoverInitializedName check is deferred. 2255 Parser.prototype.isolateCoverGrammar = function (parseFunction) { 2256 var previousIsBindingElement = this.context.isBindingElement; 2257 var previousIsAssignmentTarget = this.context.isAssignmentTarget; 2258 var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError; 2259 this.context.isBindingElement = true; 2260 this.context.isAssignmentTarget = true; 2261 this.context.firstCoverInitializedNameError = null; 2262 var result = parseFunction.call(this); 2263 if (this.context.firstCoverInitializedNameError !== null) { 2264 this.throwUnexpectedToken(this.context.firstCoverInitializedNameError); 2265 } 2266 this.context.isBindingElement = previousIsBindingElement; 2267 this.context.isAssignmentTarget = previousIsAssignmentTarget; 2268 this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError; 2269 return result; 2270 }; 2271 Parser.prototype.inheritCoverGrammar = function (parseFunction) { 2272 var previousIsBindingElement = this.context.isBindingElement; 2273 var previousIsAssignmentTarget = this.context.isAssignmentTarget; 2274 var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError; 2275 this.context.isBindingElement = true; 2276 this.context.isAssignmentTarget = true; 2277 this.context.firstCoverInitializedNameError = null; 2278 var result = parseFunction.call(this); 2279 this.context.isBindingElement = this.context.isBindingElement && previousIsBindingElement; 2280 this.context.isAssignmentTarget = this.context.isAssignmentTarget && previousIsAssignmentTarget; 2281 this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError || this.context.firstCoverInitializedNameError; 2282 return result; 2283 }; 2284 Parser.prototype.consumeSemicolon = function () { 2285 if (this.match(';')) { 2286 this.nextToken(); 2287 } 2288 else if (!this.hasLineTerminator) { 2289 if (this.lookahead.type !== 2 /* EOF */ && !this.match('}')) { 2290 this.throwUnexpectedToken(this.lookahead); 2291 } 2292 this.lastMarker.index = this.startMarker.index; 2293 this.lastMarker.line = this.startMarker.line; 2294 this.lastMarker.column = this.startMarker.column; 2295 } 2296 }; 2297 // https://tc39.github.io/ecma262/#sec-primary-expression 2298 Parser.prototype.parsePrimaryExpression = function () { 2299 var node = this.createNode(); 2300 var expr; 2301 var token, raw; 2302 switch (this.lookahead.type) { 2303 case 3 /* Identifier */: 2304 if ((this.context.isModule || this.context.await) && this.lookahead.value === 'await') { 2305 this.tolerateUnexpectedToken(this.lookahead); 2306 } 2307 expr = this.matchAsyncFunction() ? this.parseFunctionExpression() : this.finalize(node, new Node.Identifier(this.nextToken().value)); 2308 break; 2309 case 6 /* NumericLiteral */: 2310 case 8 /* StringLiteral */: 2311 if (this.context.strict && this.lookahead.octal) { 2312 this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.StrictOctalLiteral); 2313 } 2314 this.context.isAssignmentTarget = false; 2315 this.context.isBindingElement = false; 2316 token = this.nextToken(); 2317 raw = this.getTokenRaw(token); 2318 expr = this.finalize(node, new Node.Literal(token.value, raw)); 2319 break; 2320 case 1 /* BooleanLiteral */: 2321 this.context.isAssignmentTarget = false; 2322 this.context.isBindingElement = false; 2323 token = this.nextToken(); 2324 raw = this.getTokenRaw(token); 2325 expr = this.finalize(node, new Node.Literal(token.value === 'true', raw)); 2326 break; 2327 case 5 /* NullLiteral */: 2328 this.context.isAssignmentTarget = false; 2329 this.context.isBindingElement = false; 2330 token = this.nextToken(); 2331 raw = this.getTokenRaw(token); 2332 expr = this.finalize(node, new Node.Literal(null, raw)); 2333 break; 2334 case 10 /* Template */: 2335 expr = this.parseTemplateLiteral(); 2336 break; 2337 case 7 /* Punctuator */: 2338 switch (this.lookahead.value) { 2339 case '(': 2340 this.context.isBindingElement = false; 2341 expr = this.inheritCoverGrammar(this.parseGroupExpression); 2342 break; 2343 case '[': 2344 expr = this.inheritCoverGrammar(this.parseArrayInitializer); 2345 break; 2346 case '{': 2347 expr = this.inheritCoverGrammar(this.parseObjectInitializer); 2348 break; 2349 case '/': 2350 case '/=': 2351 this.context.isAssignmentTarget = false; 2352 this.context.isBindingElement = false; 2353 this.scanner.index = this.startMarker.index; 2354 token = this.nextRegexToken(); 2355 raw = this.getTokenRaw(token); 2356 expr = this.finalize(node, new Node.RegexLiteral(token.regex, raw, token.pattern, token.flags)); 2357 break; 2358 default: 2359 expr = this.throwUnexpectedToken(this.nextToken()); 2360 } 2361 break; 2362 case 4 /* Keyword */: 2363 if (!this.context.strict && this.context.allowYield && this.matchKeyword('yield')) { 2364 expr = this.parseIdentifierName(); 2365 } 2366 else if (!this.context.strict && this.matchKeyword('let')) { 2367 expr = this.finalize(node, new Node.Identifier(this.nextToken().value)); 2368 } 2369 else { 2370 this.context.isAssignmentTarget = false; 2371 this.context.isBindingElement = false; 2372 if (this.matchKeyword('function')) { 2373 expr = this.parseFunctionExpression(); 2374 } 2375 else if (this.matchKeyword('this')) { 2376 this.nextToken(); 2377 expr = this.finalize(node, new Node.ThisExpression()); 2378 } 2379 else if (this.matchKeyword('class')) { 2380 expr = this.parseClassExpression(); 2381 } 2382 else { 2383 expr = this.throwUnexpectedToken(this.nextToken()); 2384 } 2385 } 2386 break; 2387 default: 2388 expr = this.throwUnexpectedToken(this.nextToken()); 2389 } 2390 return expr; 2391 }; 2392 // https://tc39.github.io/ecma262/#sec-array-initializer 2393 Parser.prototype.parseSpreadElement = function () { 2394 var node = this.createNode(); 2395 this.expect('...'); 2396 var arg = this.inheritCoverGrammar(this.parseAssignmentExpression); 2397 return this.finalize(node, new Node.SpreadElement(arg)); 2398 }; 2399 Parser.prototype.parseArrayInitializer = function () { 2400 var node = this.createNode(); 2401 var elements = []; 2402 this.expect('['); 2403 while (!this.match(']')) { 2404 if (this.match(',')) { 2405 this.nextToken(); 2406 elements.push(null); 2407 } 2408 else if (this.match('...')) { 2409 var element = this.parseSpreadElement(); 2410 if (!this.match(']')) { 2411 this.context.isAssignmentTarget = false; 2412 this.context.isBindingElement = false; 2413 this.expect(','); 2414 } 2415 elements.push(element); 2416 } 2417 else { 2418 elements.push(this.inheritCoverGrammar(this.parseAssignmentExpression)); 2419 if (!this.match(']')) { 2420 this.expect(','); 2421 } 2422 } 2423 } 2424 this.expect(']'); 2425 return this.finalize(node, new Node.ArrayExpression(elements)); 2426 }; 2427 // https://tc39.github.io/ecma262/#sec-object-initializer 2428 Parser.prototype.parsePropertyMethod = function (params) { 2429 this.context.isAssignmentTarget = false; 2430 this.context.isBindingElement = false; 2431 var previousStrict = this.context.strict; 2432 var previousAllowStrictDirective = this.context.allowStrictDirective; 2433 this.context.allowStrictDirective = params.simple; 2434 var body = this.isolateCoverGrammar(this.parseFunctionSourceElements); 2435 if (this.context.strict && params.firstRestricted) { 2436 this.tolerateUnexpectedToken(params.firstRestricted, params.message); 2437 } 2438 if (this.context.strict && params.stricted) { 2439 this.tolerateUnexpectedToken(params.stricted, params.message); 2440 } 2441 this.context.strict = previousStrict; 2442 this.context.allowStrictDirective = previousAllowStrictDirective; 2443 return body; 2444 }; 2445 Parser.prototype.parsePropertyMethodFunction = function () { 2446 var isGenerator = false; 2447 var node = this.createNode(); 2448 var previousAllowYield = this.context.allowYield; 2449 this.context.allowYield = false; 2450 var params = this.parseFormalParameters(); 2451 var method = this.parsePropertyMethod(params); 2452 this.context.allowYield = previousAllowYield; 2453 return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator)); 2454 }; 2455 Parser.prototype.parsePropertyMethodAsyncFunction = function () { 2456 var node = this.createNode(); 2457 var previousAllowYield = this.context.allowYield; 2458 var previousAwait = this.context.await; 2459 this.context.allowYield = false; 2460 this.context.await = true; 2461 var params = this.parseFormalParameters(); 2462 var method = this.parsePropertyMethod(params); 2463 this.context.allowYield = previousAllowYield; 2464 this.context.await = previousAwait; 2465 return this.finalize(node, new Node.AsyncFunctionExpression(null, params.params, method)); 2466 }; 2467 Parser.prototype.parseObjectPropertyKey = function () { 2468 var node = this.createNode(); 2469 var token = this.nextToken(); 2470 var key; 2471 switch (token.type) { 2472 case 8 /* StringLiteral */: 2473 case 6 /* NumericLiteral */: 2474 if (this.context.strict && token.octal) { 2475 this.tolerateUnexpectedToken(token, messages_1.Messages.StrictOctalLiteral); 2476 } 2477 var raw = this.getTokenRaw(token); 2478 key = this.finalize(node, new Node.Literal(token.value, raw)); 2479 break; 2480 case 3 /* Identifier */: 2481 case 1 /* BooleanLiteral */: 2482 case 5 /* NullLiteral */: 2483 case 4 /* Keyword */: 2484 key = this.finalize(node, new Node.Identifier(token.value)); 2485 break; 2486 case 7 /* Punctuator */: 2487 if (token.value === '[') { 2488 key = this.isolateCoverGrammar(this.parseAssignmentExpression); 2489 this.expect(']'); 2490 } 2491 else { 2492 key = this.throwUnexpectedToken(token); 2493 } 2494 break; 2495 default: 2496 key = this.throwUnexpectedToken(token); 2497 } 2498 return key; 2499 }; 2500 Parser.prototype.isPropertyKey = function (key, value) { 2501 return (key.type === syntax_1.Syntax.Identifier && key.name === value) || 2502 (key.type === syntax_1.Syntax.Literal && key.value === value); 2503 }; 2504 Parser.prototype.parseObjectProperty = function (hasProto) { 2505 var node = this.createNode(); 2506 var token = this.lookahead; 2507 var kind; 2508 var key = null; 2509 var value = null; 2510 var computed = false; 2511 var method = false; 2512 var shorthand = false; 2513 var isAsync = false; 2514 if (token.type === 3 /* Identifier */) { 2515 var id = token.value; 2516 this.nextToken(); 2517 computed = this.match('['); 2518 isAsync = !this.hasLineTerminator && (id === 'async') && 2519 !this.match(':') && !this.match('(') && !this.match('*'); 2520 key = isAsync ? this.parseObjectPropertyKey() : this.finalize(node, new Node.Identifier(id)); 2521 } 2522 else if (this.match('*')) { 2523 this.nextToken(); 2524 } 2525 else { 2526 computed = this.match('['); 2527 key = this.parseObjectPropertyKey(); 2528 } 2529 var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead); 2530 if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'get' && lookaheadPropertyKey) { 2531 kind = 'get'; 2532 computed = this.match('['); 2533 key = this.parseObjectPropertyKey(); 2534 this.context.allowYield = false; 2535 value = this.parseGetterMethod(); 2536 } 2537 else if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'set' && lookaheadPropertyKey) { 2538 kind = 'set'; 2539 computed = this.match('['); 2540 key = this.parseObjectPropertyKey(); 2541 value = this.parseSetterMethod(); 2542 } 2543 else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) { 2544 kind = 'init'; 2545 computed = this.match('['); 2546 key = this.parseObjectPropertyKey(); 2547 value = this.parseGeneratorMethod(); 2548 method = true; 2549 } 2550 else { 2551 if (!key) { 2552 this.throwUnexpectedToken(this.lookahead); 2553 } 2554 kind = 'init'; 2555 if (this.match(':') && !isAsync) { 2556 if (!computed && this.isPropertyKey(key, '__proto__')) { 2557 if (hasProto.value) { 2558 this.tolerateError(messages_1.Messages.DuplicateProtoProperty); 2559 } 2560 hasProto.value = true; 2561 } 2562 this.nextToken(); 2563 value = this.inheritCoverGrammar(this.parseAssignmentExpression); 2564 } 2565 else if (this.match('(')) { 2566 value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction(); 2567 method = true; 2568 } 2569 else if (token.type === 3 /* Identifier */) { 2570 var id = this.finalize(node, new Node.Identifier(token.value)); 2571 if (this.match('=')) { 2572 this.context.firstCoverInitializedNameError = this.lookahead; 2573 this.nextToken(); 2574 shorthand = true; 2575 var init = this.isolateCoverGrammar(this.parseAssignmentExpression); 2576 value = this.finalize(node, new Node.AssignmentPattern(id, init)); 2577 } 2578 else { 2579 shorthand = true; 2580 value = id; 2581 } 2582 } 2583 else { 2584 this.throwUnexpectedToken(this.nextToken()); 2585 } 2586 } 2587 return this.finalize(node, new Node.Property(kind, key, computed, value, method, shorthand)); 2588 }; 2589 Parser.prototype.parseObjectInitializer = function () { 2590 var node = this.createNode(); 2591 this.expect('{'); 2592 var properties = []; 2593 var hasProto = { value: false }; 2594 while (!this.match('}')) { 2595 properties.push(this.parseObjectProperty(hasProto)); 2596 if (!this.match('}')) { 2597 this.expectCommaSeparator(); 2598 } 2599 } 2600 this.expect('}'); 2601 return this.finalize(node, new Node.ObjectExpression(properties)); 2602 }; 2603 // https://tc39.github.io/ecma262/#sec-template-literals 2604 Parser.prototype.parseTemplateHead = function () { 2605 assert_1.assert(this.lookahead.head, 'Template literal must start with a template head'); 2606 var node = this.createNode(); 2607 var token = this.nextToken(); 2608 var raw = token.value; 2609 var cooked = token.cooked; 2610 return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail)); 2611 }; 2612 Parser.prototype.parseTemplateElement = function () { 2613 if (this.lookahead.type !== 10 /* Template */) { 2614 this.throwUnexpectedToken(); 2615 } 2616 var node = this.createNode(); 2617 var token = this.nextToken(); 2618 var raw = token.value; 2619 var cooked = token.cooked; 2620 return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail)); 2621 }; 2622 Parser.prototype.parseTemplateLiteral = function () { 2623 var node = this.createNode(); 2624 var expressions = []; 2625 var quasis = []; 2626 var quasi = this.parseTemplateHead(); 2627 quasis.push(quasi); 2628 while (!quasi.tail) { 2629 expressions.push(this.parseExpression()); 2630 quasi = this.parseTemplateElement(); 2631 quasis.push(quasi); 2632 } 2633 return this.finalize(node, new Node.TemplateLiteral(quasis, expressions)); 2634 }; 2635 // https://tc39.github.io/ecma262/#sec-grouping-operator 2636 Parser.prototype.reinterpretExpressionAsPattern = function (expr) { 2637 switch (expr.type) { 2638 case syntax_1.Syntax.Identifier: 2639 case syntax_1.Syntax.MemberExpression: 2640 case syntax_1.Syntax.RestElement: 2641 case syntax_1.Syntax.AssignmentPattern: 2642 break; 2643 case syntax_1.Syntax.SpreadElement: 2644 expr.type = syntax_1.Syntax.RestElement; 2645 this.reinterpretExpressionAsPattern(expr.argument); 2646 break; 2647 case syntax_1.Syntax.ArrayExpression: 2648 expr.type = syntax_1.Syntax.ArrayPattern; 2649 for (var i = 0; i < expr.elements.length; i++) { 2650 if (expr.elements[i] !== null) { 2651 this.reinterpretExpressionAsPattern(expr.elements[i]); 2652 } 2653 } 2654 break; 2655 case syntax_1.Syntax.ObjectExpression: 2656 expr.type = syntax_1.Syntax.ObjectPattern; 2657 for (var i = 0; i < expr.properties.length; i++) { 2658 this.reinterpretExpressionAsPattern(expr.properties[i].value); 2659 } 2660 break; 2661 case syntax_1.Syntax.AssignmentExpression: 2662 expr.type = syntax_1.Syntax.AssignmentPattern; 2663 delete expr.operator; 2664 this.reinterpretExpressionAsPattern(expr.left); 2665 break; 2666 default: 2667 // Allow other node type for tolerant parsing. 2668 break; 2669 } 2670 }; 2671 Parser.prototype.parseGroupExpression = function () { 2672 var expr; 2673 this.expect('('); 2674 if (this.match(')')) { 2675 this.nextToken(); 2676 if (!this.match('=>')) { 2677 this.expect('=>'); 2678 } 2679 expr = { 2680 type: ArrowParameterPlaceHolder, 2681 params: [], 2682 async: false 2683 }; 2684 } 2685 else { 2686 var startToken = this.lookahead; 2687 var params = []; 2688 if (this.match('...')) { 2689 expr = this.parseRestElement(params); 2690 this.expect(')'); 2691 if (!this.match('=>')) { 2692 this.expect('=>'); 2693 } 2694 expr = { 2695 type: ArrowParameterPlaceHolder, 2696 params: [expr], 2697 async: false 2698 }; 2699 } 2700 else { 2701 var arrow = false; 2702 this.context.isBindingElement = true; 2703 expr = this.inheritCoverGrammar(this.parseAssignmentExpression); 2704 if (this.match(',')) { 2705 var expressions = []; 2706 this.context.isAssignmentTarget = false; 2707 expressions.push(expr); 2708 while (this.lookahead.type !== 2 /* EOF */) { 2709 if (!this.match(',')) { 2710 break; 2711 } 2712 this.nextToken(); 2713 if (this.match(')')) { 2714 this.nextToken(); 2715 for (var i = 0; i < expressions.length; i++) { 2716 this.reinterpretExpressionAsPattern(expressions[i]); 2717 } 2718 arrow = true; 2719 expr = { 2720 type: ArrowParameterPlaceHolder, 2721 params: expressions, 2722 async: false 2723 }; 2724 } 2725 else if (this.match('...')) { 2726 if (!this.context.isBindingElement) { 2727 this.throwUnexpectedToken(this.lookahead); 2728 } 2729 expressions.push(this.parseRestElement(params)); 2730 this.expect(')'); 2731 if (!this.match('=>')) { 2732 this.expect('=>'); 2733 } 2734 this.context.isBindingElement = false; 2735 for (var i = 0; i < expressions.length; i++) { 2736 this.reinterpretExpressionAsPattern(expressions[i]); 2737 } 2738 arrow = true; 2739 expr = { 2740 type: ArrowParameterPlaceHolder, 2741 params: expressions, 2742 async: false 2743 }; 2744 } 2745 else { 2746 expressions.push(this.inheritCoverGrammar(this.parseAssignmentExpression)); 2747 } 2748 if (arrow) { 2749 break; 2750 } 2751 } 2752 if (!arrow) { 2753 expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions)); 2754 } 2755 } 2756 if (!arrow) { 2757 this.expect(')'); 2758 if (this.match('=>')) { 2759 if (expr.type === syntax_1.Syntax.Identifier && expr.name === 'yield') { 2760 arrow = true; 2761 expr = { 2762 type: ArrowParameterPlaceHolder, 2763 params: [expr], 2764 async: false 2765 }; 2766 } 2767 if (!arrow) { 2768 if (!this.context.isBindingElement) { 2769 this.throwUnexpectedToken(this.lookahead); 2770 } 2771 if (expr.type === syntax_1.Syntax.SequenceExpression) { 2772 for (var i = 0; i < expr.expressions.length; i++) { 2773 this.reinterpretExpressionAsPattern(expr.expressions[i]); 2774 } 2775 } 2776 else { 2777 this.reinterpretExpressionAsPattern(expr); 2778 } 2779 var parameters = (expr.type === syntax_1.Syntax.SequenceExpression ? expr.expressions : [expr]); 2780 expr = { 2781 type: ArrowParameterPlaceHolder, 2782 params: parameters, 2783 async: false 2784 }; 2785 } 2786 } 2787 this.context.isBindingElement = false; 2788 } 2789 } 2790 } 2791 return expr; 2792 }; 2793 // https://tc39.github.io/ecma262/#sec-left-hand-side-expressions 2794 Parser.prototype.parseArguments = function () { 2795 this.expect('('); 2796 var args = []; 2797 if (!this.match(')')) { 2798 while (true) { 2799 var expr = this.match('...') ? this.parseSpreadElement() : 2800 this.isolateCoverGrammar(this.parseAssignmentExpression); 2801 args.push(expr); 2802 if (this.match(')')) { 2803 break; 2804 } 2805 this.expectCommaSeparator(); 2806 if (this.match(')')) { 2807 break; 2808 } 2809 } 2810 } 2811 this.expect(')'); 2812 return args; 2813 }; 2814 Parser.prototype.isIdentifierName = function (token) { 2815 return token.type === 3 /* Identifier */ || 2816 token.type === 4 /* Keyword */ || 2817 token.type === 1 /* BooleanLiteral */ || 2818 token.type === 5 /* NullLiteral */; 2819 }; 2820 Parser.prototype.parseIdentifierName = function () { 2821 var node = this.createNode(); 2822 var token = this.nextToken(); 2823 if (!this.isIdentifierName(token)) { 2824 this.throwUnexpectedToken(token); 2825 } 2826 return this.finalize(node, new Node.Identifier(token.value)); 2827 }; 2828 Parser.prototype.parseNewExpression = function () { 2829 var node = this.createNode(); 2830 var id = this.parseIdentifierName(); 2831 assert_1.assert(id.name === 'new', 'New expression must start with `new`'); 2832 var expr; 2833 if (this.match('.')) { 2834 this.nextToken(); 2835 if (this.lookahead.type === 3 /* Identifier */ && this.context.inFunctionBody && this.lookahead.value === 'target') { 2836 var property = this.parseIdentifierName(); 2837 expr = new Node.MetaProperty(id, property); 2838 } 2839 else { 2840 this.throwUnexpectedToken(this.lookahead); 2841 } 2842 } 2843 else { 2844 var callee = this.isolateCoverGrammar(this.parseLeftHandSideExpression); 2845 var args = this.match('(') ? this.parseArguments() : []; 2846 expr = new Node.NewExpression(callee, args); 2847 this.context.isAssignmentTarget = false; 2848 this.context.isBindingElement = false; 2849 } 2850 return this.finalize(node, expr); 2851 }; 2852 Parser.prototype.parseAsyncArgument = function () { 2853 var arg = this.parseAssignmentExpression(); 2854 this.context.firstCoverInitializedNameError = null; 2855 return arg; 2856 }; 2857 Parser.prototype.parseAsyncArguments = function () { 2858 this.expect('('); 2859 var args = []; 2860 if (!this.match(')')) { 2861 while (true) { 2862 var expr = this.match('...') ? this.parseSpreadElement() : 2863 this.isolateCoverGrammar(this.parseAsyncArgument); 2864 args.push(expr); 2865 if (this.match(')')) { 2866 break; 2867 } 2868 this.expectCommaSeparator(); 2869 if (this.match(')')) { 2870 break; 2871 } 2872 } 2873 } 2874 this.expect(')'); 2875 return args; 2876 }; 2877 Parser.prototype.parseLeftHandSideExpressionAllowCall = function () { 2878 var startToken = this.lookahead; 2879 var maybeAsync = this.matchContextualKeyword('async'); 2880 var previousAllowIn = this.context.allowIn; 2881 this.context.allowIn = true; 2882 var expr; 2883 if (this.matchKeyword('super') && this.context.inFunctionBody) { 2884 expr = this.createNode(); 2885 this.nextToken(); 2886 expr = this.finalize(expr, new Node.Super()); 2887 if (!this.match('(') && !this.match('.') && !this.match('[')) { 2888 this.throwUnexpectedToken(this.lookahead); 2889 } 2890 } 2891 else { 2892 expr = this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression); 2893 } 2894 while (true) { 2895 if (this.match('.')) { 2896 this.context.isBindingElement = false; 2897 this.context.isAssignmentTarget = true; 2898 this.expect('.'); 2899 var property = this.parseIdentifierName(); 2900 expr = this.finalize(this.startNode(startToken), new Node.StaticMemberExpression(expr, property)); 2901 } 2902 else if (this.match('(')) { 2903 var asyncArrow = maybeAsync && (startToken.lineNumber === this.lookahead.lineNumber); 2904 this.context.isBindingElement = false; 2905 this.context.isAssignmentTarget = false; 2906 var args = asyncArrow ? this.parseAsyncArguments() : this.parseArguments(); 2907 expr = this.finalize(this.startNode(startToken), new Node.CallExpression(expr, args)); 2908 if (asyncArrow && this.match('=>')) { 2909 for (var i = 0; i < args.length; ++i) { 2910 this.reinterpretExpressionAsPattern(args[i]); 2911 } 2912 expr = { 2913 type: ArrowParameterPlaceHolder, 2914 params: args, 2915 async: true 2916 }; 2917 } 2918 } 2919 else if (this.match('[')) { 2920 this.context.isBindingElement = false; 2921 this.context.isAssignmentTarget = true; 2922 this.expect('['); 2923 var property = this.isolateCoverGrammar(this.parseExpression); 2924 this.expect(']'); 2925 expr = this.finalize(this.startNode(startToken), new Node.ComputedMemberExpression(expr, property)); 2926 } 2927 else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) { 2928 var quasi = this.parseTemplateLiteral(); 2929 expr = this.finalize(this.startNode(startToken), new Node.TaggedTemplateExpression(expr, quasi)); 2930 } 2931 else { 2932 break; 2933 } 2934 } 2935 this.context.allowIn = previousAllowIn; 2936 return expr; 2937 }; 2938 Parser.prototype.parseSuper = function () { 2939 var node = this.createNode(); 2940 this.expectKeyword('super'); 2941 if (!this.match('[') && !this.match('.')) { 2942 this.throwUnexpectedToken(this.lookahead); 2943 } 2944 return this.finalize(node, new Node.Super()); 2945 }; 2946 Parser.prototype.parseLeftHandSideExpression = function () { 2947 assert_1.assert(this.context.allowIn, 'callee of new expression always allow in keyword.'); 2948 var node = this.startNode(this.lookahead); 2949 var expr = (this.matchKeyword('super') && this.context.inFunctionBody) ? this.parseSuper() : 2950 this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression); 2951 while (true) { 2952 if (this.match('[')) { 2953 this.context.isBindingElement = false; 2954 this.context.isAssignmentTarget = true; 2955 this.expect('['); 2956 var property = this.isolateCoverGrammar(this.parseExpression); 2957 this.expect(']'); 2958 expr = this.finalize(node, new Node.ComputedMemberExpression(expr, property)); 2959 } 2960 else if (this.match('.')) { 2961 this.context.isBindingElement = false; 2962 this.context.isAssignmentTarget = true; 2963 this.expect('.'); 2964 var property = this.parseIdentifierName(); 2965 expr = this.finalize(node, new Node.StaticMemberExpression(expr, property)); 2966 } 2967 else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) { 2968 var quasi = this.parseTemplateLiteral(); 2969 expr = this.finalize(node, new Node.TaggedTemplateExpression(expr, quasi)); 2970 } 2971 else { 2972 break; 2973 } 2974 } 2975 return expr; 2976 }; 2977 // https://tc39.github.io/ecma262/#sec-update-expressions 2978 Parser.prototype.parseUpdateExpression = function () { 2979 var expr; 2980 var startToken = this.lookahead; 2981 if (this.match('++') || this.match('--')) { 2982 var node = this.startNode(startToken); 2983 var token = this.nextToken(); 2984 expr = this.inheritCoverGrammar(this.parseUnaryExpression); 2985 if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) { 2986 this.tolerateError(messages_1.Messages.StrictLHSPrefix); 2987 } 2988 if (!this.context.isAssignmentTarget) { 2989 this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); 2990 } 2991 var prefix = true; 2992 expr = this.finalize(node, new Node.UpdateExpression(token.value, expr, prefix)); 2993 this.context.isAssignmentTarget = false; 2994 this.context.isBindingElement = false; 2995 } 2996 else { 2997 expr = this.inheritCoverGrammar(this.parseLeftHandSideExpressionAllowCall); 2998 if (!this.hasLineTerminator && this.lookahead.type === 7 /* Punctuator */) { 2999 if (this.match('++') || this.match('--')) { 3000 if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) { 3001 this.tolerateError(messages_1.Messages.StrictLHSPostfix); 3002 } 3003 if (!this.context.isAssignmentTarget) { 3004 this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); 3005 } 3006 this.context.isAssignmentTarget = false; 3007 this.context.isBindingElement = false; 3008 var operator = this.nextToken().value; 3009 var prefix = false; 3010 expr = this.finalize(this.startNode(startToken), new Node.UpdateExpression(operator, expr, prefix)); 3011 } 3012 } 3013 } 3014 return expr; 3015 }; 3016 // https://tc39.github.io/ecma262/#sec-unary-operators 3017 Parser.prototype.parseAwaitExpression = function () { 3018 var node = this.createNode(); 3019 this.nextToken(); 3020 var argument = this.parseUnaryExpression(); 3021 return this.finalize(node, new Node.AwaitExpression(argument)); 3022 }; 3023 Parser.prototype.parseUnaryExpression = function () { 3024 var expr; 3025 if (this.match('+') || this.match('-') || this.match('~') || this.match('!') || 3026 this.matchKeyword('delete') || this.matchKeyword('void') || this.matchKeyword('typeof')) { 3027 var node = this.startNode(this.lookahead); 3028 var token = this.nextToken(); 3029 expr = this.inheritCoverGrammar(this.parseUnaryExpression); 3030 expr = this.finalize(node, new Node.UnaryExpression(token.value, expr)); 3031 if (this.context.strict && expr.operator === 'delete' && expr.argument.type === syntax_1.Syntax.Identifier) { 3032 this.tolerateError(messages_1.Messages.StrictDelete); 3033 } 3034 this.context.isAssignmentTarget = false; 3035 this.context.isBindingElement = false; 3036 } 3037 else if (this.context.await && this.matchContextualKeyword('await')) { 3038 expr = this.parseAwaitExpression(); 3039 } 3040 else { 3041 expr = this.parseUpdateExpression(); 3042 } 3043 return expr; 3044 }; 3045 Parser.prototype.parseExponentiationExpression = function () { 3046 var startToken = this.lookahead; 3047 var expr = this.inheritCoverGrammar(this.parseUnaryExpression); 3048 if (expr.type !== syntax_1.Syntax.UnaryExpression && this.match('**')) { 3049 this.nextToken(); 3050 this.context.isAssignmentTarget = false; 3051 this.context.isBindingElement = false; 3052 var left = expr; 3053 var right = this.isolateCoverGrammar(this.parseExponentiationExpression); 3054 expr = this.finalize(this.startNode(startToken), new Node.BinaryExpression('**', left, right)); 3055 } 3056 return expr; 3057 }; 3058 // https://tc39.github.io/ecma262/#sec-exp-operator 3059 // https://tc39.github.io/ecma262/#sec-multiplicative-operators 3060 // https://tc39.github.io/ecma262/#sec-additive-operators 3061 // https://tc39.github.io/ecma262/#sec-bitwise-shift-operators 3062 // https://tc39.github.io/ecma262/#sec-relational-operators 3063 // https://tc39.github.io/ecma262/#sec-equality-operators 3064 // https://tc39.github.io/ecma262/#sec-binary-bitwise-operators 3065 // https://tc39.github.io/ecma262/#sec-binary-logical-operators 3066 Parser.prototype.binaryPrecedence = function (token) { 3067 var op = token.value; 3068 var precedence; 3069 if (token.type === 7 /* Punctuator */) { 3070 precedence = this.operatorPrecedence[op] || 0; 3071 } 3072 else if (token.type === 4 /* Keyword */) { 3073 precedence = (op === 'instanceof' || (this.context.allowIn && op === 'in')) ? 7 : 0; 3074 } 3075 else { 3076 precedence = 0; 3077 } 3078 return precedence; 3079 }; 3080 Parser.prototype.parseBinaryExpression = function () { 3081 var startToken = this.lookahead; 3082 var expr = this.inheritCoverGrammar(this.parseExponentiationExpression); 3083 var token = this.lookahead; 3084 var prec = this.binaryPrecedence(token); 3085 if (prec > 0) { 3086 this.nextToken(); 3087 this.context.isAssignmentTarget = false; 3088 this.context.isBindingElement = false; 3089 var markers = [startToken, this.lookahead]; 3090 var left = expr; 3091 var right = this.isolateCoverGrammar(this.parseExponentiationExpression); 3092 var stack = [left, token.value, right]; 3093 var precedences = [prec]; 3094 while (true) { 3095 prec = this.binaryPrecedence(this.lookahead); 3096 if (prec <= 0) { 3097 break; 3098 } 3099 // Reduce: make a binary expression from the three topmost entries. 3100 while ((stack.length > 2) && (prec <= precedences[precedences.length - 1])) { 3101 right = stack.pop(); 3102 var operator = stack.pop(); 3103 precedences.pop(); 3104 left = stack.pop(); 3105 markers.pop(); 3106 var node = this.startNode(markers[markers.length - 1]); 3107 stack.push(this.finalize(node, new Node.BinaryExpression(operator, left, right))); 3108 } 3109 // Shift. 3110 stack.push(this.nextToken().value); 3111 precedences.push(prec); 3112 markers.push(this.lookahead); 3113 stack.push(this.isolateCoverGrammar(this.parseExponentiationExpression)); 3114 } 3115 // Final reduce to clean-up the stack. 3116 var i = stack.length - 1; 3117 expr = stack[i]; 3118 markers.pop(); 3119 while (i > 1) { 3120 var node = this.startNode(markers.pop()); 3121 var operator = stack[i - 1]; 3122 expr = this.finalize(node, new Node.BinaryExpression(operator, stack[i - 2], expr)); 3123 i -= 2; 3124 } 3125 } 3126 return expr; 3127 }; 3128 // https://tc39.github.io/ecma262/#sec-conditional-operator 3129 Parser.prototype.parseConditionalExpression = function () { 3130 var startToken = this.lookahead; 3131 var expr = this.inheritCoverGrammar(this.parseBinaryExpression); 3132 if (this.match('?')) { 3133 this.nextToken(); 3134 var previousAllowIn = this.context.allowIn; 3135 this.context.allowIn = true; 3136 var consequent = this.isolateCoverGrammar(this.parseAssignmentExpression); 3137 this.context.allowIn = previousAllowIn; 3138 this.expect(':'); 3139 var alternate = this.isolateCoverGrammar(this.parseAssignmentExpression); 3140 expr = this.finalize(this.startNode(startToken), new Node.ConditionalExpression(expr, consequent, alternate)); 3141 this.context.isAssignmentTarget = false; 3142 this.context.isBindingElement = false; 3143 } 3144 return expr; 3145 }; 3146 // https://tc39.github.io/ecma262/#sec-assignment-operators 3147 Parser.prototype.checkPatternParam = function (options, param) { 3148 switch (param.type) { 3149 case syntax_1.Syntax.Identifier: 3150 this.validateParam(options, param, param.name); 3151 break; 3152 case syntax_1.Syntax.RestElement: 3153 this.checkPatternParam(options, param.argument); 3154 break; 3155 case syntax_1.Syntax.AssignmentPattern: 3156 this.checkPatternParam(options, param.left); 3157 break; 3158 case syntax_1.Syntax.ArrayPattern: 3159 for (var i = 0; i < param.elements.length; i++) { 3160 if (param.elements[i] !== null) { 3161 this.checkPatternParam(options, param.elements[i]); 3162 } 3163 } 3164 break; 3165 case syntax_1.Syntax.ObjectPattern: 3166 for (var i = 0; i < param.properties.length; i++) { 3167 this.checkPatternParam(options, param.properties[i].value); 3168 } 3169 break; 3170 default: 3171 break; 3172 } 3173 options.simple = options.simple && (param instanceof Node.Identifier); 3174 }; 3175 Parser.prototype.reinterpretAsCoverFormalsList = function (expr) { 3176 var params = [expr]; 3177 var options; 3178 var asyncArrow = false; 3179 switch (expr.type) { 3180 case syntax_1.Syntax.Identifier: 3181 break; 3182 case ArrowParameterPlaceHolder: 3183 params = expr.params; 3184 asyncArrow = expr.async; 3185 break; 3186 default: 3187 return null; 3188 } 3189 options = { 3190 simple: true, 3191 paramSet: {} 3192 }; 3193 for (var i = 0; i < params.length; ++i) { 3194 var param = params[i]; 3195 if (param.type === syntax_1.Syntax.AssignmentPattern) { 3196 if (param.right.type === syntax_1.Syntax.YieldExpression) { 3197 if (param.right.argument) { 3198 this.throwUnexpectedToken(this.lookahead); 3199 } 3200 param.right.type = syntax_1.Syntax.Identifier; 3201 param.right.name = 'yield'; 3202 delete param.right.argument; 3203 delete param.right.delegate; 3204 } 3205 } 3206 else if (asyncArrow && param.type === syntax_1.Syntax.Identifier && param.name === 'await') { 3207 this.throwUnexpectedToken(this.lookahead); 3208 } 3209 this.checkPatternParam(options, param); 3210 params[i] = param; 3211 } 3212 if (this.context.strict || !this.context.allowYield) { 3213 for (var i = 0; i < params.length; ++i) { 3214 var param = params[i]; 3215 if (param.type === syntax_1.Syntax.YieldExpression) { 3216 this.throwUnexpectedToken(this.lookahead); 3217 } 3218 } 3219 } 3220 if (options.message === messages_1.Messages.StrictParamDupe) { 3221 var token = this.context.strict ? options.stricted : options.firstRestricted; 3222 this.throwUnexpectedToken(token, options.message); 3223 } 3224 return { 3225 simple: options.simple, 3226 params: params, 3227 stricted: options.stricted, 3228 firstRestricted: options.firstRestricted, 3229 message: options.message 3230 }; 3231 }; 3232 Parser.prototype.parseAssignmentExpression = function () { 3233 var expr; 3234 if (!this.context.allowYield && this.matchKeyword('yield')) { 3235 expr = this.parseYieldExpression(); 3236 } 3237 else { 3238 var startToken = this.lookahead; 3239 var token = startToken; 3240 expr = this.parseConditionalExpression(); 3241 if (token.type === 3 /* Identifier */ && (token.lineNumber === this.lookahead.lineNumber) && token.value === 'async') { 3242 if (this.lookahead.type === 3 /* Identifier */ || this.matchKeyword('yield')) { 3243 var arg = this.parsePrimaryExpression(); 3244 this.reinterpretExpressionAsPattern(arg); 3245 expr = { 3246 type: ArrowParameterPlaceHolder, 3247 params: [arg], 3248 async: true 3249 }; 3250 } 3251 } 3252 if (expr.type === ArrowParameterPlaceHolder || this.match('=>')) { 3253 // https://tc39.github.io/ecma262/#sec-arrow-function-definitions 3254 this.context.isAssignmentTarget = false; 3255 this.context.isBindingElement = false; 3256 var isAsync = expr.async; 3257 var list = this.reinterpretAsCoverFormalsList(expr); 3258 if (list) { 3259 if (this.hasLineTerminator) { 3260 this.tolerateUnexpectedToken(this.lookahead); 3261 } 3262 this.context.firstCoverInitializedNameError = null; 3263 var previousStrict = this.context.strict; 3264 var previousAllowStrictDirective = this.context.allowStrictDirective; 3265 this.context.allowStrictDirective = list.simple; 3266 var previousAllowYield = this.context.allowYield; 3267 var previousAwait = this.context.await; 3268 this.context.allowYield = true; 3269 this.context.await = isAsync; 3270 var node = this.startNode(startToken); 3271 this.expect('=>'); 3272 var body = void 0; 3273 if (this.match('{')) { 3274 var previousAllowIn = this.context.allowIn; 3275 this.context.allowIn = true; 3276 body = this.parseFunctionSourceElements(); 3277 this.context.allowIn = previousAllowIn; 3278 } 3279 else { 3280 body = this.isolateCoverGrammar(this.parseAssignmentExpression); 3281 } 3282 var expression = body.type !== syntax_1.Syntax.BlockStatement; 3283 if (this.context.strict && list.firstRestricted) { 3284 this.throwUnexpectedToken(list.firstRestricted, list.message); 3285 } 3286 if (this.context.strict && list.stricted) { 3287 this.tolerateUnexpectedToken(list.stricted, list.message); 3288 } 3289 expr = isAsync ? this.finalize(node, new Node.AsyncArrowFunctionExpression(list.params, body, expression)) : 3290 this.finalize(node, new Node.ArrowFunctionExpression(list.params, body, expression)); 3291 this.context.strict = previousStrict; 3292 this.context.allowStrictDirective = previousAllowStrictDirective; 3293 this.context.allowYield = previousAllowYield; 3294 this.context.await = previousAwait; 3295 } 3296 } 3297 else { 3298 if (this.matchAssign()) { 3299 if (!this.context.isAssignmentTarget) { 3300 this.tolerateError(messages_1.Messages.InvalidLHSInAssignment); 3301 } 3302 if (this.context.strict && expr.type === syntax_1.Syntax.Identifier) { 3303 var id = expr; 3304 if (this.scanner.isRestrictedWord(id.name)) { 3305 this.tolerateUnexpectedToken(token, messages_1.Messages.StrictLHSAssignment); 3306 } 3307 if (this.scanner.isStrictModeReservedWord(id.name)) { 3308 this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); 3309 } 3310 } 3311 if (!this.match('=')) { 3312 this.context.isAssignmentTarget = false; 3313 this.context.isBindingElement = false; 3314 } 3315 else { 3316 this.reinterpretExpressionAsPattern(expr); 3317 } 3318 token = this.nextToken(); 3319 var operator = token.value; 3320 var right = this.isolateCoverGrammar(this.parseAssignmentExpression); 3321 expr = this.finalize(this.startNode(startToken), new Node.AssignmentExpression(operator, expr, right)); 3322 this.context.firstCoverInitializedNameError = null; 3323 } 3324 } 3325 } 3326 return expr; 3327 }; 3328 // https://tc39.github.io/ecma262/#sec-comma-operator 3329 Parser.prototype.parseExpression = function () { 3330 var startToken = this.lookahead; 3331 var expr = this.isolateCoverGrammar(this.parseAssignmentExpression); 3332 if (this.match(',')) { 3333 var expressions = []; 3334 expressions.push(expr); 3335 while (this.lookahead.type !== 2 /* EOF */) { 3336 if (!this.match(',')) { 3337 break; 3338 } 3339 this.nextToken(); 3340 expressions.push(this.isolateCoverGrammar(this.parseAssignmentExpression)); 3341 } 3342 expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions)); 3343 } 3344 return expr; 3345 }; 3346 // https://tc39.github.io/ecma262/#sec-block 3347 Parser.prototype.parseStatementListItem = function () { 3348 var statement; 3349 this.context.isAssignmentTarget = true; 3350 this.context.isBindingElement = true; 3351 if (this.lookahead.type === 4 /* Keyword */) { 3352 switch (this.lookahead.value) { 3353 case 'export': 3354 if (!this.context.isModule) { 3355 this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalExportDeclaration); 3356 } 3357 statement = this.parseExportDeclaration(); 3358 break; 3359 case 'import': 3360 if (!this.context.isModule) { 3361 this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalImportDeclaration); 3362 } 3363 statement = this.parseImportDeclaration(); 3364 break; 3365 case 'const': 3366 statement = this.parseLexicalDeclaration({ inFor: false }); 3367 break; 3368 case 'function': 3369 statement = this.parseFunctionDeclaration(); 3370 break; 3371 case 'class': 3372 statement = this.parseClassDeclaration(); 3373 break; 3374 case 'let': 3375 statement = this.isLexicalDeclaration() ? this.parseLexicalDeclaration({ inFor: false }) : this.parseStatement(); 3376 break; 3377 default: 3378 statement = this.parseStatement(); 3379 break; 3380 } 3381 } 3382 else { 3383 statement = this.parseStatement(); 3384 } 3385 return statement; 3386 }; 3387 Parser.prototype.parseBlock = function () { 3388 var node = this.createNode(); 3389 this.expect('{'); 3390 var block = []; 3391 while (true) { 3392 if (this.match('}')) { 3393 break; 3394 } 3395 block.push(this.parseStatementListItem()); 3396 } 3397 this.expect('}'); 3398 return this.finalize(node, new Node.BlockStatement(block)); 3399 }; 3400 // https://tc39.github.io/ecma262/#sec-let-and-const-declarations 3401 Parser.prototype.parseLexicalBinding = function (kind, options) { 3402 var node = this.createNode(); 3403 var params = []; 3404 var id = this.parsePattern(params, kind); 3405 if (this.context.strict && id.type === syntax_1.Syntax.Identifier) { 3406 if (this.scanner.isRestrictedWord(id.name)) { 3407 this.tolerateError(messages_1.Messages.StrictVarName); 3408 } 3409 } 3410 var init = null; 3411 if (kind === 'const') { 3412 if (!this.matchKeyword('in') && !this.matchContextualKeyword('of')) { 3413 if (this.match('=')) { 3414 this.nextToken(); 3415 init = this.isolateCoverGrammar(this.parseAssignmentExpression); 3416 } 3417 else { 3418 this.throwError(messages_1.Messages.DeclarationMissingInitializer, 'const'); 3419 } 3420 } 3421 } 3422 else if ((!options.inFor && id.type !== syntax_1.Syntax.Identifier) || this.match('=')) { 3423 this.expect('='); 3424 init = this.isolateCoverGrammar(this.parseAssignmentExpression); 3425 } 3426 return this.finalize(node, new Node.VariableDeclarator(id, init)); 3427 }; 3428 Parser.prototype.parseBindingList = function (kind, options) { 3429 var list = [this.parseLexicalBinding(kind, options)]; 3430 while (this.match(',')) { 3431 this.nextToken(); 3432 list.push(this.parseLexicalBinding(kind, options)); 3433 } 3434 return list; 3435 }; 3436 Parser.prototype.isLexicalDeclaration = function () { 3437 var state = this.scanner.saveState(); 3438 this.scanner.scanComments(); 3439 var next = this.scanner.lex(); 3440 this.scanner.restoreState(state); 3441 return (next.type === 3 /* Identifier */) || 3442 (next.type === 7 /* Punctuator */ && next.value === '[') || 3443 (next.type === 7 /* Punctuator */ && next.value === '{') || 3444 (next.type === 4 /* Keyword */ && next.value === 'let') || 3445 (next.type === 4 /* Keyword */ && next.value === 'yield'); 3446 }; 3447 Parser.prototype.parseLexicalDeclaration = function (options) { 3448 var node = this.createNode(); 3449 var kind = this.nextToken().value; 3450 assert_1.assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const'); 3451 var declarations = this.parseBindingList(kind, options); 3452 this.consumeSemicolon(); 3453 return this.finalize(node, new Node.VariableDeclaration(declarations, kind)); 3454 }; 3455 // https://tc39.github.io/ecma262/#sec-destructuring-binding-patterns 3456 Parser.prototype.parseBindingRestElement = function (params, kind) { 3457 var node = this.createNode(); 3458 this.expect('...'); 3459 var arg = this.parsePattern(params, kind); 3460 return this.finalize(node, new Node.RestElement(arg)); 3461 }; 3462 Parser.prototype.parseArrayPattern = function (params, kind) { 3463 var node = this.createNode(); 3464 this.expect('['); 3465 var elements = []; 3466 while (!this.match(']')) { 3467 if (this.match(',')) { 3468 this.nextToken(); 3469 elements.push(null); 3470 } 3471 else { 3472 if (this.match('...')) { 3473 elements.push(this.parseBindingRestElement(params, kind)); 3474 break; 3475 } 3476 else { 3477 elements.push(this.parsePatternWithDefault(params, kind)); 3478 } 3479 if (!this.match(']')) { 3480 this.expect(','); 3481 } 3482 } 3483 } 3484 this.expect(']'); 3485 return this.finalize(node, new Node.ArrayPattern(elements)); 3486 }; 3487 Parser.prototype.parsePropertyPattern = function (params, kind) { 3488 var node = this.createNode(); 3489 var computed = false; 3490 var shorthand = false; 3491 var method = false; 3492 var key; 3493 var value; 3494 if (this.lookahead.type === 3 /* Identifier */) { 3495 var keyToken = this.lookahead; 3496 key = this.parseVariableIdentifier(); 3497 var init = this.finalize(node, new Node.Identifier(keyToken.value)); 3498 if (this.match('=')) { 3499 params.push(keyToken); 3500 shorthand = true; 3501 this.nextToken(); 3502 var expr = this.parseAssignmentExpression(); 3503 value = this.finalize(this.startNode(keyToken), new Node.AssignmentPattern(init, expr)); 3504 } 3505 else if (!this.match(':')) { 3506 params.push(keyToken); 3507 shorthand = true; 3508 value = init; 3509 } 3510 else { 3511 this.expect(':'); 3512 value = this.parsePatternWithDefault(params, kind); 3513 } 3514 } 3515 else { 3516 computed = this.match('['); 3517 key = this.parseObjectPropertyKey(); 3518 this.expect(':'); 3519 value = this.parsePatternWithDefault(params, kind); 3520 } 3521 return this.finalize(node, new Node.Property('init', key, computed, value, method, shorthand)); 3522 }; 3523 Parser.prototype.parseObjectPattern = function (params, kind) { 3524 var node = this.createNode(); 3525 var properties = []; 3526 this.expect('{'); 3527 while (!this.match('}')) { 3528 properties.push(this.parsePropertyPattern(params, kind)); 3529 if (!this.match('}')) { 3530 this.expect(','); 3531 } 3532 } 3533 this.expect('}'); 3534 return this.finalize(node, new Node.ObjectPattern(properties)); 3535 }; 3536 Parser.prototype.parsePattern = function (params, kind) { 3537 var pattern; 3538 if (this.match('[')) { 3539 pattern = this.parseArrayPattern(params, kind); 3540 } 3541 else if (this.match('{')) { 3542 pattern = this.parseObjectPattern(params, kind); 3543 } 3544 else { 3545 if (this.matchKeyword('let') && (kind === 'const' || kind === 'let')) { 3546 this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.LetInLexicalBinding); 3547 } 3548 params.push(this.lookahead); 3549 pattern = this.parseVariableIdentifier(kind); 3550 } 3551 return pattern; 3552 }; 3553 Parser.prototype.parsePatternWithDefault = function (params, kind) { 3554 var startToken = this.lookahead; 3555 var pattern = this.parsePattern(params, kind); 3556 if (this.match('=')) { 3557 this.nextToken(); 3558 var previousAllowYield = this.context.allowYield; 3559 this.context.allowYield = true; 3560 var right = this.isolateCoverGrammar(this.parseAssignmentExpression); 3561 this.context.allowYield = previousAllowYield; 3562 pattern = this.finalize(this.startNode(startToken), new Node.AssignmentPattern(pattern, right)); 3563 } 3564 return pattern; 3565 }; 3566 // https://tc39.github.io/ecma262/#sec-variable-statement 3567 Parser.prototype.parseVariableIdentifier = function (kind) { 3568 var node = this.createNode(); 3569 var token = this.nextToken(); 3570 if (token.type === 4 /* Keyword */ && token.value === 'yield') { 3571 if (this.context.strict) { 3572 this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); 3573 } 3574 else if (!this.context.allowYield) { 3575 this.throwUnexpectedToken(token); 3576 } 3577 } 3578 else if (token.type !== 3 /* Identifier */) { 3579 if (this.context.strict && token.type === 4 /* Keyword */ && this.scanner.isStrictModeReservedWord(token.value)) { 3580 this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord); 3581 } 3582 else { 3583 if (this.context.strict || token.value !== 'let' || kind !== 'var') { 3584 this.throwUnexpectedToken(token); 3585 } 3586 } 3587 } 3588 else if ((this.context.isModule || this.context.await) && token.type === 3 /* Identifier */ && token.value === 'await') { 3589 this.tolerateUnexpectedToken(token); 3590 } 3591 return this.finalize(node, new Node.Identifier(token.value)); 3592 }; 3593 Parser.prototype.parseVariableDeclaration = function (options) { 3594 var node = this.createNode(); 3595 var params = []; 3596 var id = this.parsePattern(params, 'var'); 3597 if (this.context.strict && id.type === syntax_1.Syntax.Identifier) { 3598 if (this.scanner.isRestrictedWord(id.name)) { 3599 this.tolerateError(messages_1.Messages.StrictVarName); 3600 } 3601 } 3602 var init = null; 3603 if (this.match('=')) { 3604 this.nextToken(); 3605 init = this.isolateCoverGrammar(this.parseAssignmentExpression); 3606 } 3607 else if (id.type !== syntax_1.Syntax.Identifier && !options.inFor) { 3608 this.expect('='); 3609 } 3610 return this.finalize(node, new Node.VariableDeclarator(id, init)); 3611 }; 3612 Parser.prototype.parseVariableDeclarationList = function (options) { 3613 var opt = { inFor: options.inFor }; 3614 var list = []; 3615 list.push(this.parseVariableDeclaration(opt)); 3616 while (this.match(',')) { 3617 this.nextToken(); 3618 list.push(this.parseVariableDeclaration(opt)); 3619 } 3620 return list; 3621 }; 3622 Parser.prototype.parseVariableStatement = function () { 3623 var node = this.createNode(); 3624 this.expectKeyword('var'); 3625 var declarations = this.parseVariableDeclarationList({ inFor: false }); 3626 this.consumeSemicolon(); 3627 return this.finalize(node, new Node.VariableDeclaration(declarations, 'var')); 3628 }; 3629 // https://tc39.github.io/ecma262/#sec-empty-statement 3630 Parser.prototype.parseEmptyStatement = function () { 3631 var node = this.createNode(); 3632 this.expect(';'); 3633 return this.finalize(node, new Node.EmptyStatement()); 3634 }; 3635 // https://tc39.github.io/ecma262/#sec-expression-statement 3636 Parser.prototype.parseExpressionStatement = function () { 3637 var node = this.createNode(); 3638 var expr = this.parseExpression(); 3639 this.consumeSemicolon(); 3640 return this.finalize(node, new Node.ExpressionStatement(expr)); 3641 }; 3642 // https://tc39.github.io/ecma262/#sec-if-statement 3643 Parser.prototype.parseIfClause = function () { 3644 if (this.context.strict && this.matchKeyword('function')) { 3645 this.tolerateError(messages_1.Messages.StrictFunction); 3646 } 3647 return this.parseStatement(); 3648 }; 3649 Parser.prototype.parseIfStatement = function () { 3650 var node = this.createNode(); 3651 var consequent; 3652 var alternate = null; 3653 this.expectKeyword('if'); 3654 this.expect('('); 3655 var test = this.parseExpression(); 3656 if (!this.match(')') && this.config.tolerant) { 3657 this.tolerateUnexpectedToken(this.nextToken()); 3658 consequent = this.finalize(this.createNode(), new Node.EmptyStatement()); 3659 } 3660 else { 3661 this.expect(')'); 3662 consequent = this.parseIfClause(); 3663 if (this.matchKeyword('else')) { 3664 this.nextToken(); 3665 alternate = this.parseIfClause(); 3666 } 3667 } 3668 return this.finalize(node, new Node.IfStatement(test, consequent, alternate)); 3669 }; 3670 // https://tc39.github.io/ecma262/#sec-do-while-statement 3671 Parser.prototype.parseDoWhileStatement = function () { 3672 var node = this.createNode(); 3673 this.expectKeyword('do'); 3674 var previousInIteration = this.context.inIteration; 3675 this.context.inIteration = true; 3676 var body = this.parseStatement(); 3677 this.context.inIteration = previousInIteration; 3678 this.expectKeyword('while'); 3679 this.expect('('); 3680 var test = this.parseExpression(); 3681 if (!this.match(')') && this.config.tolerant) { 3682 this.tolerateUnexpectedToken(this.nextToken()); 3683 } 3684 else { 3685 this.expect(')'); 3686 if (this.match(';')) { 3687 this.nextToken(); 3688 } 3689 } 3690 return this.finalize(node, new Node.DoWhileStatement(body, test)); 3691 }; 3692 // https://tc39.github.io/ecma262/#sec-while-statement 3693 Parser.prototype.parseWhileStatement = function () { 3694 var node = this.createNode(); 3695 var body; 3696 this.expectKeyword('while'); 3697 this.expect('('); 3698 var test = this.parseExpression(); 3699 if (!this.match(')') && this.config.tolerant) { 3700 this.tolerateUnexpectedToken(this.nextToken()); 3701 body = this.finalize(this.createNode(), new Node.EmptyStatement()); 3702 } 3703 else { 3704 this.expect(')'); 3705 var previousInIteration = this.context.inIteration; 3706 this.context.inIteration = true; 3707 body = this.parseStatement(); 3708 this.context.inIteration = previousInIteration; 3709 } 3710 return this.finalize(node, new Node.WhileStatement(test, body)); 3711 }; 3712 // https://tc39.github.io/ecma262/#sec-for-statement 3713 // https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements 3714 Parser.prototype.parseForStatement = function () { 3715 var init = null; 3716 var test = null; 3717 var update = null; 3718 var forIn = true; 3719 var left, right; 3720 var node = this.createNode(); 3721 this.expectKeyword('for'); 3722 this.expect('('); 3723 if (this.match(';')) { 3724 this.nextToken(); 3725 } 3726 else { 3727 if (this.matchKeyword('var')) { 3728 init = this.createNode(); 3729 this.nextToken(); 3730 var previousAllowIn = this.context.allowIn; 3731 this.context.allowIn = false; 3732 var declarations = this.parseVariableDeclarationList({ inFor: true }); 3733 this.context.allowIn = previousAllowIn; 3734 if (declarations.length === 1 && this.matchKeyword('in')) { 3735 var decl = declarations[0]; 3736 if (decl.init && (decl.id.type === syntax_1.Syntax.ArrayPattern || decl.id.type === syntax_1.Syntax.ObjectPattern || this.context.strict)) { 3737 this.tolerateError(messages_1.Messages.ForInOfLoopInitializer, 'for-in'); 3738 } 3739 init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); 3740 this.nextToken(); 3741 left = init; 3742 right = this.parseExpression(); 3743 init = null; 3744 } 3745 else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) { 3746 init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); 3747 this.nextToken(); 3748 left = init; 3749 right = this.parseAssignmentExpression(); 3750 init = null; 3751 forIn = false; 3752 } 3753 else { 3754 init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var')); 3755 this.expect(';'); 3756 } 3757 } 3758 else if (this.matchKeyword('const') || this.matchKeyword('let')) { 3759 init = this.createNode(); 3760 var kind = this.nextToken().value; 3761 if (!this.context.strict && this.lookahead.value === 'in') { 3762 init = this.finalize(init, new Node.Identifier(kind)); 3763 this.nextToken(); 3764 left = init; 3765 right = this.parseExpression(); 3766 init = null; 3767 } 3768 else { 3769 var previousAllowIn = this.context.allowIn; 3770 this.context.allowIn = false; 3771 var declarations = this.parseBindingList(kind, { inFor: true }); 3772 this.context.allowIn = previousAllowIn; 3773 if (declarations.length === 1 && declarations[0].init === null && this.matchKeyword('in')) { 3774 init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); 3775 this.nextToken(); 3776 left = init; 3777 right = this.parseExpression(); 3778 init = null; 3779 } 3780 else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) { 3781 init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); 3782 this.nextToken(); 3783 left = init; 3784 right = this.parseAssignmentExpression(); 3785 init = null; 3786 forIn = false; 3787 } 3788 else { 3789 this.consumeSemicolon(); 3790 init = this.finalize(init, new Node.VariableDeclaration(declarations, kind)); 3791 } 3792 } 3793 } 3794 else { 3795 var initStartToken = this.lookahead; 3796 var previousAllowIn = this.context.allowIn; 3797 this.context.allowIn = false; 3798 init = this.inheritCoverGrammar(this.parseAssignmentExpression); 3799 this.context.allowIn = previousAllowIn; 3800 if (this.matchKeyword('in')) { 3801 if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) { 3802 this.tolerateError(messages_1.Messages.InvalidLHSInForIn); 3803 } 3804 this.nextToken(); 3805 this.reinterpretExpressionAsPattern(init); 3806 left = init; 3807 right = this.parseExpression(); 3808 init = null; 3809 } 3810 else if (this.matchContextualKeyword('of')) { 3811 if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) { 3812 this.tolerateError(messages_1.Messages.InvalidLHSInForLoop); 3813 } 3814 this.nextToken(); 3815 this.reinterpretExpressionAsPattern(init); 3816 left = init; 3817 right = this.parseAssignmentExpression(); 3818 init = null; 3819 forIn = false; 3820 } 3821 else { 3822 if (this.match(',')) { 3823 var initSeq = [init]; 3824 while (this.match(',')) { 3825 this.nextToken(); 3826 initSeq.push(this.isolateCoverGrammar(this.parseAssignmentExpression)); 3827 } 3828 init = this.finalize(this.startNode(initStartToken), new Node.SequenceExpression(initSeq)); 3829 } 3830 this.expect(';'); 3831 } 3832 } 3833 } 3834 if (typeof left === 'undefined') { 3835 if (!this.match(';')) { 3836 test = this.parseExpression(); 3837 } 3838 this.expect(';'); 3839 if (!this.match(')')) { 3840 update = this.parseExpression(); 3841 } 3842 } 3843 var body; 3844 if (!this.match(')') && this.config.tolerant) { 3845 this.tolerateUnexpectedToken(this.nextToken()); 3846 body = this.finalize(this.createNode(), new Node.EmptyStatement()); 3847 } 3848 else { 3849 this.expect(')'); 3850 var previousInIteration = this.context.inIteration; 3851 this.context.inIteration = true; 3852 body = this.isolateCoverGrammar(this.parseStatement); 3853 this.context.inIteration = previousInIteration; 3854 } 3855 return (typeof left === 'undefined') ? 3856 this.finalize(node, new Node.ForStatement(init, test, update, body)) : 3857 forIn ? this.finalize(node, new Node.ForInStatement(left, right, body)) : 3858 this.finalize(node, new Node.ForOfStatement(left, right, body)); 3859 }; 3860 // https://tc39.github.io/ecma262/#sec-continue-statement 3861 Parser.prototype.parseContinueStatement = function () { 3862 var node = this.createNode(); 3863 this.expectKeyword('continue'); 3864 var label = null; 3865 if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) { 3866 var id = this.parseVariableIdentifier(); 3867 label = id; 3868 var key = '$' + id.name; 3869 if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { 3870 this.throwError(messages_1.Messages.UnknownLabel, id.name); 3871 } 3872 } 3873 this.consumeSemicolon(); 3874 if (label === null && !this.context.inIteration) { 3875 this.throwError(messages_1.Messages.IllegalContinue); 3876 } 3877 return this.finalize(node, new Node.ContinueStatement(label)); 3878 }; 3879 // https://tc39.github.io/ecma262/#sec-break-statement 3880 Parser.prototype.parseBreakStatement = function () { 3881 var node = this.createNode(); 3882 this.expectKeyword('break'); 3883 var label = null; 3884 if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) { 3885 var id = this.parseVariableIdentifier(); 3886 var key = '$' + id.name; 3887 if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { 3888 this.throwError(messages_1.Messages.UnknownLabel, id.name); 3889 } 3890 label = id; 3891 } 3892 this.consumeSemicolon(); 3893 if (label === null && !this.context.inIteration && !this.context.inSwitch) { 3894 this.throwError(messages_1.Messages.IllegalBreak); 3895 } 3896 return this.finalize(node, new Node.BreakStatement(label)); 3897 }; 3898 // https://tc39.github.io/ecma262/#sec-return-statement 3899 Parser.prototype.parseReturnStatement = function () { 3900 if (!this.context.inFunctionBody) { 3901 this.tolerateError(messages_1.Messages.IllegalReturn); 3902 } 3903 var node = this.createNode(); 3904 this.expectKeyword('return'); 3905 var hasArgument = !this.match(';') && !this.match('}') && 3906 !this.hasLineTerminator && this.lookahead.type !== 2 /* EOF */; 3907 var argument = hasArgument ? this.parseExpression() : null; 3908 this.consumeSemicolon(); 3909 return this.finalize(node, new Node.ReturnStatement(argument)); 3910 }; 3911 // https://tc39.github.io/ecma262/#sec-with-statement 3912 Parser.prototype.parseWithStatement = function () { 3913 if (this.context.strict) { 3914 this.tolerateError(messages_1.Messages.StrictModeWith); 3915 } 3916 var node = this.createNode(); 3917 var body; 3918 this.expectKeyword('with'); 3919 this.expect('('); 3920 var object = this.parseExpression(); 3921 if (!this.match(')') && this.config.tolerant) { 3922 this.tolerateUnexpectedToken(this.nextToken()); 3923 body = this.finalize(this.createNode(), new Node.EmptyStatement()); 3924 } 3925 else { 3926 this.expect(')'); 3927 body = this.parseStatement(); 3928 } 3929 return this.finalize(node, new Node.WithStatement(object, body)); 3930 }; 3931 // https://tc39.github.io/ecma262/#sec-switch-statement 3932 Parser.prototype.parseSwitchCase = function () { 3933 var node = this.createNode(); 3934 var test; 3935 if (this.matchKeyword('default')) { 3936 this.nextToken(); 3937 test = null; 3938 } 3939 else { 3940 this.expectKeyword('case'); 3941 test = this.parseExpression(); 3942 } 3943 this.expect(':'); 3944 var consequent = []; 3945 while (true) { 3946 if (this.match('}') || this.matchKeyword('default') || this.matchKeyword('case')) { 3947 break; 3948 } 3949 consequent.push(this.parseStatementListItem()); 3950 } 3951 return this.finalize(node, new Node.SwitchCase(test, consequent)); 3952 }; 3953 Parser.prototype.parseSwitchStatement = function () { 3954 var node = this.createNode(); 3955 this.expectKeyword('switch'); 3956 this.expect('('); 3957 var discriminant = this.parseExpression(); 3958 this.expect(')'); 3959 var previousInSwitch = this.context.inSwitch; 3960 this.context.inSwitch = true; 3961 var cases = []; 3962 var defaultFound = false; 3963 this.expect('{'); 3964 while (true) { 3965 if (this.match('}')) { 3966 break; 3967 } 3968 var clause = this.parseSwitchCase(); 3969 if (clause.test === null) { 3970 if (defaultFound) { 3971 this.throwError(messages_1.Messages.MultipleDefaultsInSwitch); 3972 } 3973 defaultFound = true; 3974 } 3975 cases.push(clause); 3976 } 3977 this.expect('}'); 3978 this.context.inSwitch = previousInSwitch; 3979 return this.finalize(node, new Node.SwitchStatement(discriminant, cases)); 3980 }; 3981 // https://tc39.github.io/ecma262/#sec-labelled-statements 3982 Parser.prototype.parseLabelledStatement = function () { 3983 var node = this.createNode(); 3984 var expr = this.parseExpression(); 3985 var statement; 3986 if ((expr.type === syntax_1.Syntax.Identifier) && this.match(':')) { 3987 this.nextToken(); 3988 var id = expr; 3989 var key = '$' + id.name; 3990 if (Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) { 3991 this.throwError(messages_1.Messages.Redeclaration, 'Label', id.name); 3992 } 3993 this.context.labelSet[key] = true; 3994 var body = void 0; 3995 if (this.matchKeyword('class')) { 3996 this.tolerateUnexpectedToken(this.lookahead); 3997 body = this.parseClassDeclaration(); 3998 } 3999 else if (this.matchKeyword('function')) { 4000 var token = this.lookahead; 4001 var declaration = this.parseFunctionDeclaration(); 4002 if (this.context.strict) { 4003 this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunction); 4004 } 4005 else if (declaration.generator) { 4006 this.tolerateUnexpectedToken(token, messages_1.Messages.GeneratorInLegacyContext); 4007 } 4008 body = declaration; 4009 } 4010 else { 4011 body = this.parseStatement(); 4012 } 4013 delete this.context.labelSet[key]; 4014 statement = new Node.LabeledStatement(id, body); 4015 } 4016 else { 4017 this.consumeSemicolon(); 4018 statement = new Node.ExpressionStatement(expr); 4019 } 4020 return this.finalize(node, statement); 4021 }; 4022 // https://tc39.github.io/ecma262/#sec-throw-statement 4023 Parser.prototype.parseThrowStatement = function () { 4024 var node = this.createNode(); 4025 this.expectKeyword('throw'); 4026 if (this.hasLineTerminator) { 4027 this.throwError(messages_1.Messages.NewlineAfterThrow); 4028 } 4029 var argument = this.parseExpression(); 4030 this.consumeSemicolon(); 4031 return this.finalize(node, new Node.ThrowStatement(argument)); 4032 }; 4033 // https://tc39.github.io/ecma262/#sec-try-statement 4034 Parser.prototype.parseCatchClause = function () { 4035 var node = this.createNode(); 4036 this.expectKeyword('catch'); 4037 this.expect('('); 4038 if (this.match(')')) { 4039 this.throwUnexpectedToken(this.lookahead); 4040 } 4041 var params = []; 4042 var param = this.parsePattern(params); 4043 var paramMap = {}; 4044 for (var i = 0; i < params.length; i++) { 4045 var key = '$' + params[i].value; 4046 if (Object.prototype.hasOwnProperty.call(paramMap, key)) { 4047 this.tolerateError(messages_1.Messages.DuplicateBinding, params[i].value); 4048 } 4049 paramMap[key] = true; 4050 } 4051 if (this.context.strict && param.type === syntax_1.Syntax.Identifier) { 4052 if (this.scanner.isRestrictedWord(param.name)) { 4053 this.tolerateError(messages_1.Messages.StrictCatchVariable); 4054 } 4055 } 4056 this.expect(')'); 4057 var body = this.parseBlock(); 4058 return this.finalize(node, new Node.CatchClause(param, body)); 4059 }; 4060 Parser.prototype.parseFinallyClause = function () { 4061 this.expectKeyword('finally'); 4062 return this.parseBlock(); 4063 }; 4064 Parser.prototype.parseTryStatement = function () { 4065 var node = this.createNode(); 4066 this.expectKeyword('try'); 4067 var block = this.parseBlock(); 4068 var handler = this.matchKeyword('catch') ? this.parseCatchClause() : null; 4069 var finalizer = this.matchKeyword('finally') ? this.parseFinallyClause() : null; 4070 if (!handler && !finalizer) { 4071 this.throwError(messages_1.Messages.NoCatchOrFinally); 4072 } 4073 return this.finalize(node, new Node.TryStatement(block, handler, finalizer)); 4074 }; 4075 // https://tc39.github.io/ecma262/#sec-debugger-statement 4076 Parser.prototype.parseDebuggerStatement = function () { 4077 var node = this.createNode(); 4078 this.expectKeyword('debugger'); 4079 this.consumeSemicolon(); 4080 return this.finalize(node, new Node.DebuggerStatement()); 4081 }; 4082 // https://tc39.github.io/ecma262/#sec-ecmascript-language-statements-and-declarations 4083 Parser.prototype.parseStatement = function () { 4084 var statement; 4085 switch (this.lookahead.type) { 4086 case 1 /* BooleanLiteral */: 4087 case 5 /* NullLiteral */: 4088 case 6 /* NumericLiteral */: 4089 case 8 /* StringLiteral */: 4090 case 10 /* Template */: 4091 case 9 /* RegularExpression */: 4092 statement = this.parseExpressionStatement(); 4093 break; 4094 case 7 /* Punctuator */: 4095 var value = this.lookahead.value; 4096 if (value === '{') { 4097 statement = this.parseBlock(); 4098 } 4099 else if (value === '(') { 4100 statement = this.parseExpressionStatement(); 4101 } 4102 else if (value === ';') { 4103 statement = this.parseEmptyStatement(); 4104 } 4105 else { 4106 statement = this.parseExpressionStatement(); 4107 } 4108 break; 4109 case 3 /* Identifier */: 4110 statement = this.matchAsyncFunction() ? this.parseFunctionDeclaration() : this.parseLabelledStatement(); 4111 break; 4112 case 4 /* Keyword */: 4113 switch (this.lookahead.value) { 4114 case 'break': 4115 statement = this.parseBreakStatement(); 4116 break; 4117 case 'continue': 4118 statement = this.parseContinueStatement(); 4119 break; 4120 case 'debugger': 4121 statement = this.parseDebuggerStatement(); 4122 break; 4123 case 'do': 4124 statement = this.parseDoWhileStatement(); 4125 break; 4126 case 'for': 4127 statement = this.parseForStatement(); 4128 break; 4129 case 'function': 4130 statement = this.parseFunctionDeclaration(); 4131 break; 4132 case 'if': 4133 statement = this.parseIfStatement(); 4134 break; 4135 case 'return': 4136 statement = this.parseReturnStatement(); 4137 break; 4138 case 'switch': 4139 statement = this.parseSwitchStatement(); 4140 break; 4141 case 'throw': 4142 statement = this.parseThrowStatement(); 4143 break; 4144 case 'try': 4145 statement = this.parseTryStatement(); 4146 break; 4147 case 'var': 4148 statement = this.parseVariableStatement(); 4149 break; 4150 case 'while': 4151 statement = this.parseWhileStatement(); 4152 break; 4153 case 'with': 4154 statement = this.parseWithStatement(); 4155 break; 4156 default: 4157 statement = this.parseExpressionStatement(); 4158 break; 4159 } 4160 break; 4161 default: 4162 statement = this.throwUnexpectedToken(this.lookahead); 4163 } 4164 return statement; 4165 }; 4166 // https://tc39.github.io/ecma262/#sec-function-definitions 4167 Parser.prototype.parseFunctionSourceElements = function () { 4168 var node = this.createNode(); 4169 this.expect('{'); 4170 var body = this.parseDirectivePrologues(); 4171 var previousLabelSet = this.context.labelSet; 4172 var previousInIteration = this.context.inIteration; 4173 var previousInSwitch = this.context.inSwitch; 4174 var previousInFunctionBody = this.context.inFunctionBody; 4175 this.context.labelSet = {}; 4176 this.context.inIteration = false; 4177 this.context.inSwitch = false; 4178 this.context.inFunctionBody = true; 4179 while (this.lookahead.type !== 2 /* EOF */) { 4180 if (this.match('}')) { 4181 break; 4182 } 4183 body.push(this.parseStatementListItem()); 4184 } 4185 this.expect('}'); 4186 this.context.labelSet = previousLabelSet; 4187 this.context.inIteration = previousInIteration; 4188 this.context.inSwitch = previousInSwitch; 4189 this.context.inFunctionBody = previousInFunctionBody; 4190 return this.finalize(node, new Node.BlockStatement(body)); 4191 }; 4192 Parser.prototype.validateParam = function (options, param, name) { 4193 var key = '$' + name; 4194 if (this.context.strict) { 4195 if (this.scanner.isRestrictedWord(name)) { 4196 options.stricted = param; 4197 options.message = messages_1.Messages.StrictParamName; 4198 } 4199 if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { 4200 options.stricted = param; 4201 options.message = messages_1.Messages.StrictParamDupe; 4202 } 4203 } 4204 else if (!options.firstRestricted) { 4205 if (this.scanner.isRestrictedWord(name)) { 4206 options.firstRestricted = param; 4207 options.message = messages_1.Messages.StrictParamName; 4208 } 4209 else if (this.scanner.isStrictModeReservedWord(name)) { 4210 options.firstRestricted = param; 4211 options.message = messages_1.Messages.StrictReservedWord; 4212 } 4213 else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) { 4214 options.stricted = param; 4215 options.message = messages_1.Messages.StrictParamDupe; 4216 } 4217 } 4218 /* istanbul ignore next */ 4219 if (typeof Object.defineProperty === 'function') { 4220 Object.defineProperty(options.paramSet, key, { value: true, enumerable: true, writable: true, configurable: true }); 4221 } 4222 else { 4223 options.paramSet[key] = true; 4224 } 4225 }; 4226 Parser.prototype.parseRestElement = function (params) { 4227 var node = this.createNode(); 4228 this.expect('...'); 4229 var arg = this.parsePattern(params); 4230 if (this.match('=')) { 4231 this.throwError(messages_1.Messages.DefaultRestParameter); 4232 } 4233 if (!this.match(')')) { 4234 this.throwError(messages_1.Messages.ParameterAfterRestParameter); 4235 } 4236 return this.finalize(node, new Node.RestElement(arg)); 4237 }; 4238 Parser.prototype.parseFormalParameter = function (options) { 4239 var params = []; 4240 var param = this.match('...') ? this.parseRestElement(params) : this.parsePatternWithDefault(params); 4241 for (var i = 0; i < params.length; i++) { 4242 this.validateParam(options, params[i], params[i].value); 4243 } 4244 options.simple = options.simple && (param instanceof Node.Identifier); 4245 options.params.push(param); 4246 }; 4247 Parser.prototype.parseFormalParameters = function (firstRestricted) { 4248 var options; 4249 options = { 4250 simple: true, 4251 params: [], 4252 firstRestricted: firstRestricted 4253 }; 4254 this.expect('('); 4255 if (!this.match(')')) { 4256 options.paramSet = {}; 4257 while (this.lookahead.type !== 2 /* EOF */) { 4258 this.parseFormalParameter(options); 4259 if (this.match(')')) { 4260 break; 4261 } 4262 this.expect(','); 4263 if (this.match(')')) { 4264 break; 4265 } 4266 } 4267 } 4268 this.expect(')'); 4269 return { 4270 simple: options.simple, 4271 params: options.params, 4272 stricted: options.stricted, 4273 firstRestricted: options.firstRestricted, 4274 message: options.message 4275 }; 4276 }; 4277 Parser.prototype.matchAsyncFunction = function () { 4278 var match = this.matchContextualKeyword('async'); 4279 if (match) { 4280 var state = this.scanner.saveState(); 4281 this.scanner.scanComments(); 4282 var next = this.scanner.lex(); 4283 this.scanner.restoreState(state); 4284 match = (state.lineNumber === next.lineNumber) && (next.type === 4 /* Keyword */) && (next.value === 'function'); 4285 } 4286 return match; 4287 }; 4288 Parser.prototype.parseFunctionDeclaration = function (identifierIsOptional) { 4289 var node = this.createNode(); 4290 var isAsync = this.matchContextualKeyword('async'); 4291 if (isAsync) { 4292 this.nextToken(); 4293 } 4294 this.expectKeyword('function'); 4295 var isGenerator = isAsync ? false : this.match('*'); 4296 if (isGenerator) { 4297 this.nextToken(); 4298 } 4299 var message; 4300 var id = null; 4301 var firstRestricted = null; 4302 if (!identifierIsOptional || !this.match('(')) { 4303 var token = this.lookahead; 4304 id = this.parseVariableIdentifier(); 4305 if (this.context.strict) { 4306 if (this.scanner.isRestrictedWord(token.value)) { 4307 this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName); 4308 } 4309 } 4310 else { 4311 if (this.scanner.isRestrictedWord(token.value)) { 4312 firstRestricted = token; 4313 message = messages_1.Messages.StrictFunctionName; 4314 } 4315 else if (this.scanner.isStrictModeReservedWord(token.value)) { 4316 firstRestricted = token; 4317 message = messages_1.Messages.StrictReservedWord; 4318 } 4319 } 4320 } 4321 var previousAllowAwait = this.context.await; 4322 var previousAllowYield = this.context.allowYield; 4323 this.context.await = isAsync; 4324 this.context.allowYield = !isGenerator; 4325 var formalParameters = this.parseFormalParameters(firstRestricted); 4326 var params = formalParameters.params; 4327 var stricted = formalParameters.stricted; 4328 firstRestricted = formalParameters.firstRestricted; 4329 if (formalParameters.message) { 4330 message = formalParameters.message; 4331 } 4332 var previousStrict = this.context.strict; 4333 var previousAllowStrictDirective = this.context.allowStrictDirective; 4334 this.context.allowStrictDirective = formalParameters.simple; 4335 var body = this.parseFunctionSourceElements(); 4336 if (this.context.strict && firstRestricted) { 4337 this.throwUnexpectedToken(firstRestricted, message); 4338 } 4339 if (this.context.strict && stricted) { 4340 this.tolerateUnexpectedToken(stricted, message); 4341 } 4342 this.context.strict = previousStrict; 4343 this.context.allowStrictDirective = previousAllowStrictDirective; 4344 this.context.await = previousAllowAwait; 4345 this.context.allowYield = previousAllowYield; 4346 return isAsync ? this.finalize(node, new Node.AsyncFunctionDeclaration(id, params, body)) : 4347 this.finalize(node, new Node.FunctionDeclaration(id, params, body, isGenerator)); 4348 }; 4349 Parser.prototype.parseFunctionExpression = function () { 4350 var node = this.createNode(); 4351 var isAsync = this.matchContextualKeyword('async'); 4352 if (isAsync) { 4353 this.nextToken(); 4354 } 4355 this.expectKeyword('function'); 4356 var isGenerator = isAsync ? false : this.match('*'); 4357 if (isGenerator) { 4358 this.nextToken(); 4359 } 4360 var message; 4361 var id = null; 4362 var firstRestricted; 4363 var previousAllowAwait = this.context.await; 4364 var previousAllowYield = this.context.allowYield; 4365 this.context.await = isAsync; 4366 this.context.allowYield = !isGenerator; 4367 if (!this.match('(')) { 4368 var token = this.lookahead; 4369 id = (!this.context.strict && !isGenerator && this.matchKeyword('yield')) ? this.parseIdentifierName() : this.parseVariableIdentifier(); 4370 if (this.context.strict) { 4371 if (this.scanner.isRestrictedWord(token.value)) { 4372 this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName); 4373 } 4374 } 4375 else { 4376 if (this.scanner.isRestrictedWord(token.value)) { 4377 firstRestricted = token; 4378 message = messages_1.Messages.StrictFunctionName; 4379 } 4380 else if (this.scanner.isStrictModeReservedWord(token.value)) { 4381 firstRestricted = token; 4382 message = messages_1.Messages.StrictReservedWord; 4383 } 4384 } 4385 } 4386 var formalParameters = this.parseFormalParameters(firstRestricted); 4387 var params = formalParameters.params; 4388 var stricted = formalParameters.stricted; 4389 firstRestricted = formalParameters.firstRestricted; 4390 if (formalParameters.message) { 4391 message = formalParameters.message; 4392 } 4393 var previousStrict = this.context.strict; 4394 var previousAllowStrictDirective = this.context.allowStrictDirective; 4395 this.context.allowStrictDirective = formalParameters.simple; 4396 var body = this.parseFunctionSourceElements(); 4397 if (this.context.strict && firstRestricted) { 4398 this.throwUnexpectedToken(firstRestricted, message); 4399 } 4400 if (this.context.strict && stricted) { 4401 this.tolerateUnexpectedToken(stricted, message); 4402 } 4403 this.context.strict = previousStrict; 4404 this.context.allowStrictDirective = previousAllowStrictDirective; 4405 this.context.await = previousAllowAwait; 4406 this.context.allowYield = previousAllowYield; 4407 return isAsync ? this.finalize(node, new Node.AsyncFunctionExpression(id, params, body)) : 4408 this.finalize(node, new Node.FunctionExpression(id, params, body, isGenerator)); 4409 }; 4410 // https://tc39.github.io/ecma262/#sec-directive-prologues-and-the-use-strict-directive 4411 Parser.prototype.parseDirective = function () { 4412 var token = this.lookahead; 4413 var node = this.createNode(); 4414 var expr = this.parseExpression(); 4415 var directive = (expr.type === syntax_1.Syntax.Literal) ? this.getTokenRaw(token).slice(1, -1) : null; 4416 this.consumeSemicolon(); 4417 return this.finalize(node, directive ? new Node.Directive(expr, directive) : new Node.ExpressionStatement(expr)); 4418 }; 4419 Parser.prototype.parseDirectivePrologues = function () { 4420 var firstRestricted = null; 4421 var body = []; 4422 while (true) { 4423 var token = this.lookahead; 4424 if (token.type !== 8 /* StringLiteral */) { 4425 break; 4426 } 4427 var statement = this.parseDirective(); 4428 body.push(statement); 4429 var directive = statement.directive; 4430 if (typeof directive !== 'string') { 4431 break; 4432 } 4433 if (directive === 'use strict') { 4434 this.context.strict = true; 4435 if (firstRestricted) { 4436 this.tolerateUnexpectedToken(firstRestricted, messages_1.Messages.StrictOctalLiteral); 4437 } 4438 if (!this.context.allowStrictDirective) { 4439 this.tolerateUnexpectedToken(token, messages_1.Messages.IllegalLanguageModeDirective); 4440 } 4441 } 4442 else { 4443 if (!firstRestricted && token.octal) { 4444 firstRestricted = token; 4445 } 4446 } 4447 } 4448 return body; 4449 }; 4450 // https://tc39.github.io/ecma262/#sec-method-definitions 4451 Parser.prototype.qualifiedPropertyName = function (token) { 4452 switch (token.type) { 4453 case 3 /* Identifier */: 4454 case 8 /* StringLiteral */: 4455 case 1 /* BooleanLiteral */: 4456 case 5 /* NullLiteral */: 4457 case 6 /* NumericLiteral */: 4458 case 4 /* Keyword */: 4459 return true; 4460 case 7 /* Punctuator */: 4461 return token.value === '['; 4462 default: 4463 break; 4464 } 4465 return false; 4466 }; 4467 Parser.prototype.parseGetterMethod = function () { 4468 var node = this.createNode(); 4469 var isGenerator = false; 4470 var previousAllowYield = this.context.allowYield; 4471 this.context.allowYield = false; 4472 var formalParameters = this.parseFormalParameters(); 4473 if (formalParameters.params.length > 0) { 4474 this.tolerateError(messages_1.Messages.BadGetterArity); 4475 } 4476 var method = this.parsePropertyMethod(formalParameters); 4477 this.context.allowYield = previousAllowYield; 4478 return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator)); 4479 }; 4480 Parser.prototype.parseSetterMethod = function () { 4481 var node = this.createNode(); 4482 var isGenerator = false; 4483 var previousAllowYield = this.context.allowYield; 4484 this.context.allowYield = false; 4485 var formalParameters = this.parseFormalParameters(); 4486 if (formalParameters.params.length !== 1) { 4487 this.tolerateError(messages_1.Messages.BadSetterArity); 4488 } 4489 else if (formalParameters.params[0] instanceof Node.RestElement) { 4490 this.tolerateError(messages_1.Messages.BadSetterRestParameter); 4491 } 4492 var method = this.parsePropertyMethod(formalParameters); 4493 this.context.allowYield = previousAllowYield; 4494 return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator)); 4495 }; 4496 Parser.prototype.parseGeneratorMethod = function () { 4497 var node = this.createNode(); 4498 var isGenerator = true; 4499 var previousAllowYield = this.context.allowYield; 4500 this.context.allowYield = true; 4501 var params = this.parseFormalParameters(); 4502 this.context.allowYield = false; 4503 var method = this.parsePropertyMethod(params); 4504 this.context.allowYield = previousAllowYield; 4505 return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator)); 4506 }; 4507 // https://tc39.github.io/ecma262/#sec-generator-function-definitions 4508 Parser.prototype.isStartOfExpression = function () { 4509 var start = true; 4510 var value = this.lookahead.value; 4511 switch (this.lookahead.type) { 4512 case 7 /* Punctuator */: 4513 start = (value === '[') || (value === '(') || (value === '{') || 4514 (value === '+') || (value === '-') || 4515 (value === '!') || (value === '~') || 4516 (value === '++') || (value === '--') || 4517 (value === '/') || (value === '/='); // regular expression literal 4518 break; 4519 case 4 /* Keyword */: 4520 start = (value === 'class') || (value === 'delete') || 4521 (value === 'function') || (value === 'let') || (value === 'new') || 4522 (value === 'super') || (value === 'this') || (value === 'typeof') || 4523 (value === 'void') || (value === 'yield'); 4524 break; 4525 default: 4526 break; 4527 } 4528 return start; 4529 }; 4530 Parser.prototype.parseYieldExpression = function () { 4531 var node = this.createNode(); 4532 this.expectKeyword('yield'); 4533 var argument = null; 4534 var delegate = false; 4535 if (!this.hasLineTerminator) { 4536 var previousAllowYield = this.context.allowYield; 4537 this.context.allowYield = false; 4538 delegate = this.match('*'); 4539 if (delegate) { 4540 this.nextToken(); 4541 argument = this.parseAssignmentExpression(); 4542 } 4543 else if (this.isStartOfExpression()) { 4544 argument = this.parseAssignmentExpression(); 4545 } 4546 this.context.allowYield = previousAllowYield; 4547 } 4548 return this.finalize(node, new Node.YieldExpression(argument, delegate)); 4549 }; 4550 // https://tc39.github.io/ecma262/#sec-class-definitions 4551 Parser.prototype.parseClassElement = function (hasConstructor) { 4552 var token = this.lookahead; 4553 var node = this.createNode(); 4554 var kind = ''; 4555 var key = null; 4556 var value = null; 4557 var computed = false; 4558 var method = false; 4559 var isStatic = false; 4560 var isAsync = false; 4561 if (this.match('*')) { 4562 this.nextToken(); 4563 } 4564 else { 4565 computed = this.match('['); 4566 key = this.parseObjectPropertyKey(); 4567 var id = key; 4568 if (id.name === 'static' && (this.qualifiedPropertyName(this.lookahead) || this.match('*'))) { 4569 token = this.lookahead; 4570 isStatic = true; 4571 computed = this.match('['); 4572 if (this.match('*')) { 4573 this.nextToken(); 4574 } 4575 else { 4576 key = this.parseObjectPropertyKey(); 4577 } 4578 } 4579 if ((token.type === 3 /* Identifier */) && !this.hasLineTerminator && (token.value === 'async')) { 4580 var punctuator = this.lookahead.value; 4581 if (punctuator !== ':' && punctuator !== '(' && punctuator !== '*') { 4582 isAsync = true; 4583 token = this.lookahead; 4584 key = this.parseObjectPropertyKey(); 4585 if (token.type === 3 /* Identifier */) { 4586 if (token.value === 'get' || token.value === 'set') { 4587 this.tolerateUnexpectedToken(token); 4588 } 4589 else if (token.value === 'constructor') { 4590 this.tolerateUnexpectedToken(token, messages_1.Messages.ConstructorIsAsync); 4591 } 4592 } 4593 } 4594 } 4595 } 4596 var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead); 4597 if (token.type === 3 /* Identifier */) { 4598 if (token.value === 'get' && lookaheadPropertyKey) { 4599 kind = 'get'; 4600 computed = this.match('['); 4601 key = this.parseObjectPropertyKey(); 4602 this.context.allowYield = false; 4603 value = this.parseGetterMethod(); 4604 } 4605 else if (token.value === 'set' && lookaheadPropertyKey) { 4606 kind = 'set'; 4607 computed = this.match('['); 4608 key = this.parseObjectPropertyKey(); 4609 value = this.parseSetterMethod(); 4610 } 4611 } 4612 else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) { 4613 kind = 'init'; 4614 computed = this.match('['); 4615 key = this.parseObjectPropertyKey(); 4616 value = this.parseGeneratorMethod(); 4617 method = true; 4618 } 4619 if (!kind && key && this.match('(')) { 4620 kind = 'init'; 4621 value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction(); 4622 method = true; 4623 } 4624 if (!kind) { 4625 this.throwUnexpectedToken(this.lookahead); 4626 } 4627 if (kind === 'init') { 4628 kind = 'method'; 4629 } 4630 if (!computed) { 4631 if (isStatic && this.isPropertyKey(key, 'prototype')) { 4632 this.throwUnexpectedToken(token, messages_1.Messages.StaticPrototype); 4633 } 4634 if (!isStatic && this.isPropertyKey(key, 'constructor')) { 4635 if (kind !== 'method' || !method || (value && value.generator)) { 4636 this.throwUnexpectedToken(token, messages_1.Messages.ConstructorSpecialMethod); 4637 } 4638 if (hasConstructor.value) { 4639 this.throwUnexpectedToken(token, messages_1.Messages.DuplicateConstructor); 4640 } 4641 else { 4642 hasConstructor.value = true; 4643 } 4644 kind = 'constructor'; 4645 } 4646 } 4647 return this.finalize(node, new Node.MethodDefinition(key, computed, value, kind, isStatic)); 4648 }; 4649 Parser.prototype.parseClassElementList = function () { 4650 var body = []; 4651 var hasConstructor = { value: false }; 4652 this.expect('{'); 4653 while (!this.match('}')) { 4654 if (this.match(';')) { 4655 this.nextToken(); 4656 } 4657 else { 4658 body.push(this.parseClassElement(hasConstructor)); 4659 } 4660 } 4661 this.expect('}'); 4662 return body; 4663 }; 4664 Parser.prototype.parseClassBody = function () { 4665 var node = this.createNode(); 4666 var elementList = this.parseClassElementList(); 4667 return this.finalize(node, new Node.ClassBody(elementList)); 4668 }; 4669 Parser.prototype.parseClassDeclaration = function (identifierIsOptional) { 4670 var node = this.createNode(); 4671 var previousStrict = this.context.strict; 4672 this.context.strict = true; 4673 this.expectKeyword('class'); 4674 var id = (identifierIsOptional && (this.lookahead.type !== 3 /* Identifier */)) ? null : this.parseVariableIdentifier(); 4675 var superClass = null; 4676 if (this.matchKeyword('extends')) { 4677 this.nextToken(); 4678 superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall); 4679 } 4680 var classBody = this.parseClassBody(); 4681 this.context.strict = previousStrict; 4682 return this.finalize(node, new Node.ClassDeclaration(id, superClass, classBody)); 4683 }; 4684 Parser.prototype.parseClassExpression = function () { 4685 var node = this.createNode(); 4686 var previousStrict = this.context.strict; 4687 this.context.strict = true; 4688 this.expectKeyword('class'); 4689 var id = (this.lookahead.type === 3 /* Identifier */) ? this.parseVariableIdentifier() : null; 4690 var superClass = null; 4691 if (this.matchKeyword('extends')) { 4692 this.nextToken(); 4693 superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall); 4694 } 4695 var classBody = this.parseClassBody(); 4696 this.context.strict = previousStrict; 4697 return this.finalize(node, new Node.ClassExpression(id, superClass, classBody)); 4698 }; 4699 // https://tc39.github.io/ecma262/#sec-scripts 4700 // https://tc39.github.io/ecma262/#sec-modules 4701 Parser.prototype.parseModule = function () { 4702 this.context.strict = true; 4703 this.context.isModule = true; 4704 var node = this.createNode(); 4705 var body = this.parseDirectivePrologues(); 4706 while (this.lookahead.type !== 2 /* EOF */) { 4707 body.push(this.parseStatementListItem()); 4708 } 4709 return this.finalize(node, new Node.Module(body)); 4710 }; 4711 Parser.prototype.parseScript = function () { 4712 var node = this.createNode(); 4713 var body = this.parseDirectivePrologues(); 4714 while (this.lookahead.type !== 2 /* EOF */) { 4715 body.push(this.parseStatementListItem()); 4716 } 4717 return this.finalize(node, new Node.Script(body)); 4718 }; 4719 // https://tc39.github.io/ecma262/#sec-imports 4720 Parser.prototype.parseModuleSpecifier = function () { 4721 var node = this.createNode(); 4722 if (this.lookahead.type !== 8 /* StringLiteral */) { 4723 this.throwError(messages_1.Messages.InvalidModuleSpecifier); 4724 } 4725 var token = this.nextToken(); 4726 var raw = this.getTokenRaw(token); 4727 return this.finalize(node, new Node.Literal(token.value, raw)); 4728 }; 4729 // import {<foo as bar>} ...; 4730 Parser.prototype.parseImportSpecifier = function () { 4731 var node = this.createNode(); 4732 var imported; 4733 var local; 4734 if (this.lookahead.type === 3 /* Identifier */) { 4735 imported = this.parseVariableIdentifier(); 4736 local = imported; 4737 if (this.matchContextualKeyword('as')) { 4738 this.nextToken(); 4739 local = this.parseVariableIdentifier(); 4740 } 4741 } 4742 else { 4743 imported = this.parseIdentifierName(); 4744 local = imported; 4745 if (this.matchContextualKeyword('as')) { 4746 this.nextToken(); 4747 local = this.parseVariableIdentifier(); 4748 } 4749 else { 4750 this.throwUnexpectedToken(this.nextToken()); 4751 } 4752 } 4753 return this.finalize(node, new Node.ImportSpecifier(local, imported)); 4754 }; 4755 // {foo, bar as bas} 4756 Parser.prototype.parseNamedImports = function () { 4757 this.expect('{'); 4758 var specifiers = []; 4759 while (!this.match('}')) { 4760 specifiers.push(this.parseImportSpecifier()); 4761 if (!this.match('}')) { 4762 this.expect(','); 4763 } 4764 } 4765 this.expect('}'); 4766 return specifiers; 4767 }; 4768 // import <foo> ...; 4769 Parser.prototype.parseImportDefaultSpecifier = function () { 4770 var node = this.createNode(); 4771 var local = this.parseIdentifierName(); 4772 return this.finalize(node, new Node.ImportDefaultSpecifier(local)); 4773 }; 4774 // import <* as foo> ...; 4775 Parser.prototype.parseImportNamespaceSpecifier = function () { 4776 var node = this.createNode(); 4777 this.expect('*'); 4778 if (!this.matchContextualKeyword('as')) { 4779 this.throwError(messages_1.Messages.NoAsAfterImportNamespace); 4780 } 4781 this.nextToken(); 4782 var local = this.parseIdentifierName(); 4783 return this.finalize(node, new Node.ImportNamespaceSpecifier(local)); 4784 }; 4785 Parser.prototype.parseImportDeclaration = function () { 4786 if (this.context.inFunctionBody) { 4787 this.throwError(messages_1.Messages.IllegalImportDeclaration); 4788 } 4789 var node = this.createNode(); 4790 this.expectKeyword('import'); 4791 var src; 4792 var specifiers = []; 4793 if (this.lookahead.type === 8 /* StringLiteral */) { 4794 // import 'foo'; 4795 src = this.parseModuleSpecifier(); 4796 } 4797 else { 4798 if (this.match('{')) { 4799 // import {bar} 4800 specifiers = specifiers.concat(this.parseNamedImports()); 4801 } 4802 else if (this.match('*')) { 4803 // import * as foo 4804 specifiers.push(this.parseImportNamespaceSpecifier()); 4805 } 4806 else if (this.isIdentifierName(this.lookahead) && !this.matchKeyword('default')) { 4807 // import foo 4808 specifiers.push(this.parseImportDefaultSpecifier()); 4809 if (this.match(',')) { 4810 this.nextToken(); 4811 if (this.match('*')) { 4812 // import foo, * as foo 4813 specifiers.push(this.parseImportNamespaceSpecifier()); 4814 } 4815 else if (this.match('{')) { 4816 // import foo, {bar} 4817 specifiers = specifiers.concat(this.parseNamedImports()); 4818 } 4819 else { 4820 this.throwUnexpectedToken(this.lookahead); 4821 } 4822 } 4823 } 4824 else { 4825 this.throwUnexpectedToken(this.nextToken()); 4826 } 4827 if (!this.matchContextualKeyword('from')) { 4828 var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; 4829 this.throwError(message, this.lookahead.value); 4830 } 4831 this.nextToken(); 4832 src = this.parseModuleSpecifier(); 4833 } 4834 this.consumeSemicolon(); 4835 return this.finalize(node, new Node.ImportDeclaration(specifiers, src)); 4836 }; 4837 // https://tc39.github.io/ecma262/#sec-exports 4838 Parser.prototype.parseExportSpecifier = function () { 4839 var node = this.createNode(); 4840 var local = this.parseIdentifierName(); 4841 var exported = local; 4842 if (this.matchContextualKeyword('as')) { 4843 this.nextToken(); 4844 exported = this.parseIdentifierName(); 4845 } 4846 return this.finalize(node, new Node.ExportSpecifier(local, exported)); 4847 }; 4848 Parser.prototype.parseExportDeclaration = function () { 4849 if (this.context.inFunctionBody) { 4850 this.throwError(messages_1.Messages.IllegalExportDeclaration); 4851 } 4852 var node = this.createNode(); 4853 this.expectKeyword('export'); 4854 var exportDeclaration; 4855 if (this.matchKeyword('default')) { 4856 // export default ... 4857 this.nextToken(); 4858 if (this.matchKeyword('function')) { 4859 // export default function foo () {} 4860 // export default function () {} 4861 var declaration = this.parseFunctionDeclaration(true); 4862 exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); 4863 } 4864 else if (this.matchKeyword('class')) { 4865 // export default class foo {} 4866 var declaration = this.parseClassDeclaration(true); 4867 exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); 4868 } 4869 else if (this.matchContextualKeyword('async')) { 4870 // export default async function f () {} 4871 // export default async function () {} 4872 // export default async x => x 4873 var declaration = this.matchAsyncFunction() ? this.parseFunctionDeclaration(true) : this.parseAssignmentExpression(); 4874 exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); 4875 } 4876 else { 4877 if (this.matchContextualKeyword('from')) { 4878 this.throwError(messages_1.Messages.UnexpectedToken, this.lookahead.value); 4879 } 4880 // export default {}; 4881 // export default []; 4882 // export default (1 + 2); 4883 var declaration = this.match('{') ? this.parseObjectInitializer() : 4884 this.match('[') ? this.parseArrayInitializer() : this.parseAssignmentExpression(); 4885 this.consumeSemicolon(); 4886 exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration)); 4887 } 4888 } 4889 else if (this.match('*')) { 4890 // export * from 'foo'; 4891 this.nextToken(); 4892 if (!this.matchContextualKeyword('from')) { 4893 var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; 4894 this.throwError(message, this.lookahead.value); 4895 } 4896 this.nextToken(); 4897 var src = this.parseModuleSpecifier(); 4898 this.consumeSemicolon(); 4899 exportDeclaration = this.finalize(node, new Node.ExportAllDeclaration(src)); 4900 } 4901 else if (this.lookahead.type === 4 /* Keyword */) { 4902 // export var f = 1; 4903 var declaration = void 0; 4904 switch (this.lookahead.value) { 4905 case 'let': 4906 case 'const': 4907 declaration = this.parseLexicalDeclaration({ inFor: false }); 4908 break; 4909 case 'var': 4910 case 'class': 4911 case 'function': 4912 declaration = this.parseStatementListItem(); 4913 break; 4914 default: 4915 this.throwUnexpectedToken(this.lookahead); 4916 } 4917 exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null)); 4918 } 4919 else if (this.matchAsyncFunction()) { 4920 var declaration = this.parseFunctionDeclaration(); 4921 exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null)); 4922 } 4923 else { 4924 var specifiers = []; 4925 var source = null; 4926 var isExportFromIdentifier = false; 4927 this.expect('{'); 4928 while (!this.match('}')) { 4929 isExportFromIdentifier = isExportFromIdentifier || this.matchKeyword('default'); 4930 specifiers.push(this.parseExportSpecifier()); 4931 if (!this.match('}')) { 4932 this.expect(','); 4933 } 4934 } 4935 this.expect('}'); 4936 if (this.matchContextualKeyword('from')) { 4937 // export {default} from 'foo'; 4938 // export {foo} from 'foo'; 4939 this.nextToken(); 4940 source = this.parseModuleSpecifier(); 4941 this.consumeSemicolon(); 4942 } 4943 else if (isExportFromIdentifier) { 4944 // export {default}; // missing fromClause 4945 var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause; 4946 this.throwError(message, this.lookahead.value); 4947 } 4948 else { 4949 // export {foo}; 4950 this.consumeSemicolon(); 4951 } 4952 exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(null, specifiers, source)); 4953 } 4954 return exportDeclaration; 4955 }; 4956 return Parser; 4957 }()); 4958 exports.Parser = Parser; 4959 4960 4961 /***/ }, 4962 /* 9 */ 4963 /***/ function(module, exports) { 4964 4965 "use strict"; 4966 // Ensure the condition is true, otherwise throw an error. 4967 // This is only to have a better contract semantic, i.e. another safety net 4968 // to catch a logic error. The condition shall be fulfilled in normal case. 4969 // Do NOT use this to enforce a certain condition on any user input. 4970 Object.defineProperty(exports, "__esModule", { value: true }); 4971 function assert(condition, message) { 4972 /* istanbul ignore if */ 4973 if (!condition) { 4974 throw new Error('ASSERT: ' + message); 4975 } 4976 } 4977 exports.assert = assert; 4978 4979 4980 /***/ }, 4981 /* 10 */ 4982 /***/ function(module, exports) { 4983 4984 "use strict"; 4985 /* tslint:disable:max-classes-per-file */ 4986 Object.defineProperty(exports, "__esModule", { value: true }); 4987 var ErrorHandler = (function () { 4988 function ErrorHandler() { 4989 this.errors = []; 4990 this.tolerant = false; 4991 } 4992 ErrorHandler.prototype.recordError = function (error) { 4993 this.errors.push(error); 4994 }; 4995 ErrorHandler.prototype.tolerate = function (error) { 4996 if (this.tolerant) { 4997 this.recordError(error); 4998 } 4999 else { 5000 throw error; 5001 } 5002 }; 5003 ErrorHandler.prototype.constructError = function (msg, column) { 5004 var error = new Error(msg); 5005 try { 5006 throw error; 5007 } 5008 catch (base) { 5009 /* istanbul ignore else */ 5010 if (Object.create && Object.defineProperty) { 5011 error = Object.create(base); 5012 Object.defineProperty(error, 'column', { value: column }); 5013 } 5014 } 5015 /* istanbul ignore next */ 5016 return error; 5017 }; 5018 ErrorHandler.prototype.createError = function (index, line, col, description) { 5019 var msg = 'Line ' + line + ': ' + description; 5020 var error = this.constructError(msg, col); 5021 error.index = index; 5022 error.lineNumber = line; 5023 error.description = description; 5024 return error; 5025 }; 5026 ErrorHandler.prototype.throwError = function (index, line, col, description) { 5027 throw this.createError(index, line, col, description); 5028 }; 5029 ErrorHandler.prototype.tolerateError = function (index, line, col, description) { 5030 var error = this.createError(index, line, col, description); 5031 if (this.tolerant) { 5032 this.recordError(error); 5033 } 5034 else { 5035 throw error; 5036 } 5037 }; 5038 return ErrorHandler; 5039 }()); 5040 exports.ErrorHandler = ErrorHandler; 5041 5042 5043 /***/ }, 5044 /* 11 */ 5045 /***/ function(module, exports) { 5046 5047 "use strict"; 5048 Object.defineProperty(exports, "__esModule", { value: true }); 5049 // Error messages should be identical to V8. 5050 exports.Messages = { 5051 BadGetterArity: 'Getter must not have any formal parameters', 5052 BadSetterArity: 'Setter must have exactly one formal parameter', 5053 BadSetterRestParameter: 'Setter function argument must not be a rest parameter', 5054 ConstructorIsAsync: 'Class constructor may not be an async method', 5055 ConstructorSpecialMethod: 'Class constructor may not be an accessor', 5056 DeclarationMissingInitializer: 'Missing initializer in %0 declaration', 5057 DefaultRestParameter: 'Unexpected token =', 5058 DuplicateBinding: 'Duplicate binding %0', 5059 DuplicateConstructor: 'A class may only have one constructor', 5060 DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals', 5061 ForInOfLoopInitializer: '%0 loop variable declaration may not have an initializer', 5062 GeneratorInLegacyContext: 'Generator declarations are not allowed in legacy contexts', 5063 IllegalBreak: 'Illegal break statement', 5064 IllegalContinue: 'Illegal continue statement', 5065 IllegalExportDeclaration: 'Unexpected token', 5066 IllegalImportDeclaration: 'Unexpected token', 5067 IllegalLanguageModeDirective: 'Illegal \'use strict\' directive in function with non-simple parameter list', 5068 IllegalReturn: 'Illegal return statement', 5069 InvalidEscapedReservedWord: 'Keyword must not contain escaped characters', 5070 InvalidHexEscapeSequence: 'Invalid hexadecimal escape sequence', 5071 InvalidLHSInAssignment: 'Invalid left-hand side in assignment', 5072 InvalidLHSInForIn: 'Invalid left-hand side in for-in', 5073 InvalidLHSInForLoop: 'Invalid left-hand side in for-loop', 5074 InvalidModuleSpecifier: 'Unexpected token', 5075 InvalidRegExp: 'Invalid regular expression', 5076 LetInLexicalBinding: 'let is disallowed as a lexically bound name', 5077 MissingFromClause: 'Unexpected token', 5078 MultipleDefaultsInSwitch: 'More than one default clause in switch statement', 5079 NewlineAfterThrow: 'Illegal newline after throw', 5080 NoAsAfterImportNamespace: 'Unexpected token', 5081 NoCatchOrFinally: 'Missing catch or finally after try', 5082 ParameterAfterRestParameter: 'Rest parameter must be last formal parameter', 5083 Redeclaration: '%0 \'%1\' has already been declared', 5084 StaticPrototype: 'Classes may not have static property named prototype', 5085 StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode', 5086 StrictDelete: 'Delete of an unqualified identifier in strict mode.', 5087 StrictFunction: 'In strict mode code, functions can only be declared at top level or inside a block', 5088 StrictFunctionName: 'Function name may not be eval or arguments in strict mode', 5089 StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode', 5090 StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode', 5091 StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode', 5092 StrictModeWith: 'Strict mode code may not include a with statement', 5093 StrictOctalLiteral: 'Octal literals are not allowed in strict mode.', 5094 StrictParamDupe: 'Strict mode function may not have duplicate parameter names', 5095 StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode', 5096 StrictReservedWord: 'Use of future reserved word in strict mode', 5097 StrictVarName: 'Variable name may not be eval or arguments in strict mode', 5098 TemplateOctalLiteral: 'Octal literals are not allowed in template strings.', 5099 UnexpectedEOS: 'Unexpected end of input', 5100 UnexpectedIdentifier: 'Unexpected identifier', 5101 UnexpectedNumber: 'Unexpected number', 5102 UnexpectedReserved: 'Unexpected reserved word', 5103 UnexpectedString: 'Unexpected string', 5104 UnexpectedTemplate: 'Unexpected quasi %0', 5105 UnexpectedToken: 'Unexpected token %0', 5106 UnexpectedTokenIllegal: 'Unexpected token ILLEGAL', 5107 UnknownLabel: 'Undefined label \'%0\'', 5108 UnterminatedRegExp: 'Invalid regular expression: missing /' 5109 }; 5110 5111 5112 /***/ }, 5113 /* 12 */ 5114 /***/ function(module, exports, __webpack_require__) { 5115 5116 "use strict"; 5117 Object.defineProperty(exports, "__esModule", { value: true }); 5118 var assert_1 = __webpack_require__(9); 5119 var character_1 = __webpack_require__(4); 5120 var messages_1 = __webpack_require__(11); 5121 function hexValue(ch) { 5122 return '0123456789abcdef'.indexOf(ch.toLowerCase()); 5123 } 5124 function octalValue(ch) { 5125 return '01234567'.indexOf(ch); 5126 } 5127 var Scanner = (function () { 5128 function Scanner(code, handler) { 5129 this.source = code; 5130 this.errorHandler = handler; 5131 this.trackComment = false; 5132 this.length = code.length; 5133 this.index = 0; 5134 this.lineNumber = (code.length > 0) ? 1 : 0; 5135 this.lineStart = 0; 5136 this.curlyStack = []; 5137 } 5138 Scanner.prototype.saveState = function () { 5139 return { 5140 index: this.index, 5141 lineNumber: this.lineNumber, 5142 lineStart: this.lineStart 5143 }; 5144 }; 5145 Scanner.prototype.restoreState = function (state) { 5146 this.index = state.index; 5147 this.lineNumber = state.lineNumber; 5148 this.lineStart = state.lineStart; 5149 }; 5150 Scanner.prototype.eof = function () { 5151 return this.index >= this.length; 5152 }; 5153 Scanner.prototype.throwUnexpectedToken = function (message) { 5154 if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; } 5155 return this.errorHandler.throwError(this.index, this.lineNumber, this.index - this.lineStart + 1, message); 5156 }; 5157 Scanner.prototype.tolerateUnexpectedToken = function (message) { 5158 if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; } 5159 this.errorHandler.tolerateError(this.index, this.lineNumber, this.index - this.lineStart + 1, message); 5160 }; 5161 // https://tc39.github.io/ecma262/#sec-comments 5162 Scanner.prototype.skipSingleLineComment = function (offset) { 5163 var comments = []; 5164 var start, loc; 5165 if (this.trackComment) { 5166 comments = []; 5167 start = this.index - offset; 5168 loc = { 5169 start: { 5170 line: this.lineNumber, 5171 column: this.index - this.lineStart - offset 5172 }, 5173 end: {} 5174 }; 5175 } 5176 while (!this.eof()) { 5177 var ch = this.source.charCodeAt(this.index); 5178 ++this.index; 5179 if (character_1.Character.isLineTerminator(ch)) { 5180 if (this.trackComment) { 5181 loc.end = { 5182 line: this.lineNumber, 5183 column: this.index - this.lineStart - 1 5184 }; 5185 var entry = { 5186 multiLine: false, 5187 slice: [start + offset, this.index - 1], 5188 range: [start, this.index - 1], 5189 loc: loc 5190 }; 5191 comments.push(entry); 5192 } 5193 if (ch === 13 && this.source.charCodeAt(this.index) === 10) { 5194 ++this.index; 5195 } 5196 ++this.lineNumber; 5197 this.lineStart = this.index; 5198 return comments; 5199 } 5200 } 5201 if (this.trackComment) { 5202 loc.end = { 5203 line: this.lineNumber, 5204 column: this.index - this.lineStart 5205 }; 5206 var entry = { 5207 multiLine: false, 5208 slice: [start + offset, this.index], 5209 range: [start, this.index], 5210 loc: loc 5211 }; 5212 comments.push(entry); 5213 } 5214 return comments; 5215 }; 5216 Scanner.prototype.skipMultiLineComment = function () { 5217 var comments = []; 5218 var start, loc; 5219 if (this.trackComment) { 5220 comments = []; 5221 start = this.index - 2; 5222 loc = { 5223 start: { 5224 line: this.lineNumber, 5225 column: this.index - this.lineStart - 2 5226 }, 5227 end: {} 5228 }; 5229 } 5230 while (!this.eof()) { 5231 var ch = this.source.charCodeAt(this.index); 5232 if (character_1.Character.isLineTerminator(ch)) { 5233 if (ch === 0x0D && this.source.charCodeAt(this.index + 1) === 0x0A) { 5234 ++this.index; 5235 } 5236 ++this.lineNumber; 5237 ++this.index; 5238 this.lineStart = this.index; 5239 } 5240 else if (ch === 0x2A) { 5241 // Block comment ends with '*/'. 5242 if (this.source.charCodeAt(this.index + 1) === 0x2F) { 5243 this.index += 2; 5244 if (this.trackComment) { 5245 loc.end = { 5246 line: this.lineNumber, 5247 column: this.index - this.lineStart 5248 }; 5249 var entry = { 5250 multiLine: true, 5251 slice: [start + 2, this.index - 2], 5252 range: [start, this.index], 5253 loc: loc 5254 }; 5255 comments.push(entry); 5256 } 5257 return comments; 5258 } 5259 ++this.index; 5260 } 5261 else { 5262 ++this.index; 5263 } 5264 } 5265 // Ran off the end of the file - the whole thing is a comment 5266 if (this.trackComment) { 5267 loc.end = { 5268 line: this.lineNumber, 5269 column: this.index - this.lineStart 5270 }; 5271 var entry = { 5272 multiLine: true, 5273 slice: [start + 2, this.index], 5274 range: [start, this.index], 5275 loc: loc 5276 }; 5277 comments.push(entry); 5278 } 5279 this.tolerateUnexpectedToken(); 5280 return comments; 5281 }; 5282 Scanner.prototype.scanComments = function () { 5283 var comments; 5284 if (this.trackComment) { 5285 comments = []; 5286 } 5287 var start = (this.index === 0); 5288 while (!this.eof()) { 5289 var ch = this.source.charCodeAt(this.index); 5290 if (character_1.Character.isWhiteSpace(ch)) { 5291 ++this.index; 5292 } 5293 else if (character_1.Character.isLineTerminator(ch)) { 5294 ++this.index; 5295 if (ch === 0x0D && this.source.charCodeAt(this.index) === 0x0A) { 5296 ++this.index; 5297 } 5298 ++this.lineNumber; 5299 this.lineStart = this.index; 5300 start = true; 5301 } 5302 else if (ch === 0x2F) { 5303 ch = this.source.charCodeAt(this.index + 1); 5304 if (ch === 0x2F) { 5305 this.index += 2; 5306 var comment = this.skipSingleLineComment(2); 5307 if (this.trackComment) { 5308 comments = comments.concat(comment); 5309 } 5310 start = true; 5311 } 5312 else if (ch === 0x2A) { 5313 this.index += 2; 5314 var comment = this.skipMultiLineComment(); 5315 if (this.trackComment) { 5316 comments = comments.concat(comment); 5317 } 5318 } 5319 else { 5320 break; 5321 } 5322 } 5323 else if (start && ch === 0x2D) { 5324 // U+003E is '>' 5325 if ((this.source.charCodeAt(this.index + 1) === 0x2D) && (this.source.charCodeAt(this.index + 2) === 0x3E)) { 5326 // '-->' is a single-line comment 5327 this.index += 3; 5328 var comment = this.skipSingleLineComment(3); 5329 if (this.trackComment) { 5330 comments = comments.concat(comment); 5331 } 5332 } 5333 else { 5334 break; 5335 } 5336 } 5337 else if (ch === 0x3C) { 5338 if (this.source.slice(this.index + 1, this.index + 4) === '!--') { 5339 this.index += 4; // `<!--` 5340 var comment = this.skipSingleLineComment(4); 5341 if (this.trackComment) { 5342 comments = comments.concat(comment); 5343 } 5344 } 5345 else { 5346 break; 5347 } 5348 } 5349 else { 5350 break; 5351 } 5352 } 5353 return comments; 5354 }; 5355 // https://tc39.github.io/ecma262/#sec-future-reserved-words 5356 Scanner.prototype.isFutureReservedWord = function (id) { 5357 switch (id) { 5358 case 'enum': 5359 case 'export': 5360 case 'import': 5361 case 'super': 5362 return true; 5363 default: 5364 return false; 5365 } 5366 }; 5367 Scanner.prototype.isStrictModeReservedWord = function (id) { 5368 switch (id) { 5369 case 'implements': 5370 case 'interface': 5371 case 'package': 5372 case 'private': 5373 case 'protected': 5374 case 'public': 5375 case 'static': 5376 case 'yield': 5377 case 'let': 5378 return true; 5379 default: 5380 return false; 5381 } 5382 }; 5383 Scanner.prototype.isRestrictedWord = function (id) { 5384 return id === 'eval' || id === 'arguments'; 5385 }; 5386 // https://tc39.github.io/ecma262/#sec-keywords 5387 Scanner.prototype.isKeyword = function (id) { 5388 switch (id.length) { 5389 case 2: 5390 return (id === 'if') || (id === 'in') || (id === 'do'); 5391 case 3: 5392 return (id === 'var') || (id === 'for') || (id === 'new') || 5393 (id === 'try') || (id === 'let'); 5394 case 4: 5395 return (id === 'this') || (id === 'else') || (id === 'case') || 5396 (id === 'void') || (id === 'with') || (id === 'enum'); 5397 case 5: 5398 return (id === 'while') || (id === 'break') || (id === 'catch') || 5399 (id === 'throw') || (id === 'const') || (id === 'yield') || 5400 (id === 'class') || (id === 'super'); 5401 case 6: 5402 return (id === 'return') || (id === 'typeof') || (id === 'delete') || 5403 (id === 'switch') || (id === 'export') || (id === 'import'); 5404 case 7: 5405 return (id === 'default') || (id === 'finally') || (id === 'extends'); 5406 case 8: 5407 return (id === 'function') || (id === 'continue') || (id === 'debugger'); 5408 case 10: 5409 return (id === 'instanceof'); 5410 default: 5411 return false; 5412 } 5413 }; 5414 Scanner.prototype.codePointAt = function (i) { 5415 var cp = this.source.charCodeAt(i); 5416 if (cp >= 0xD800 && cp <= 0xDBFF) { 5417 var second = this.source.charCodeAt(i + 1); 5418 if (second >= 0xDC00 && second <= 0xDFFF) { 5419 var first = cp; 5420 cp = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000; 5421 } 5422 } 5423 return cp; 5424 }; 5425 Scanner.prototype.scanHexEscape = function (prefix) { 5426 var len = (prefix === 'u') ? 4 : 2; 5427 var code = 0; 5428 for (var i = 0; i < len; ++i) { 5429 if (!this.eof() && character_1.Character.isHexDigit(this.source.charCodeAt(this.index))) { 5430 code = code * 16 + hexValue(this.source[this.index++]); 5431 } 5432 else { 5433 return null; 5434 } 5435 } 5436 return String.fromCharCode(code); 5437 }; 5438 Scanner.prototype.scanUnicodeCodePointEscape = function () { 5439 var ch = this.source[this.index]; 5440 var code = 0; 5441 // At least, one hex digit is required. 5442 if (ch === '}') { 5443 this.throwUnexpectedToken(); 5444 } 5445 while (!this.eof()) { 5446 ch = this.source[this.index++]; 5447 if (!character_1.Character.isHexDigit(ch.charCodeAt(0))) { 5448 break; 5449 } 5450 code = code * 16 + hexValue(ch); 5451 } 5452 if (code > 0x10FFFF || ch !== '}') { 5453 this.throwUnexpectedToken(); 5454 } 5455 return character_1.Character.fromCodePoint(code); 5456 }; 5457 Scanner.prototype.getIdentifier = function () { 5458 var start = this.index++; 5459 while (!this.eof()) { 5460 var ch = this.source.charCodeAt(this.index); 5461 if (ch === 0x5C) { 5462 // Blackslash (U+005C) marks Unicode escape sequence. 5463 this.index = start; 5464 return this.getComplexIdentifier(); 5465 } 5466 else if (ch >= 0xD800 && ch < 0xDFFF) { 5467 // Need to handle surrogate pairs. 5468 this.index = start; 5469 return this.getComplexIdentifier(); 5470 } 5471 if (character_1.Character.isIdentifierPart(ch)) { 5472 ++this.index; 5473 } 5474 else { 5475 break; 5476 } 5477 } 5478 return this.source.slice(start, this.index); 5479 }; 5480 Scanner.prototype.getComplexIdentifier = function () { 5481 var cp = this.codePointAt(this.index); 5482 var id = character_1.Character.fromCodePoint(cp); 5483 this.index += id.length; 5484 // '\u' (U+005C, U+0075) denotes an escaped character. 5485 var ch; 5486 if (cp === 0x5C) { 5487 if (this.source.charCodeAt(this.index) !== 0x75) { 5488 this.throwUnexpectedToken(); 5489 } 5490 ++this.index; 5491 if (this.source[this.index] === '{') { 5492 ++this.index; 5493 ch = this.scanUnicodeCodePointEscape(); 5494 } 5495 else { 5496 ch = this.scanHexEscape('u'); 5497 if (ch === null || ch === '\\' || !character_1.Character.isIdentifierStart(ch.charCodeAt(0))) { 5498 this.throwUnexpectedToken(); 5499 } 5500 } 5501 id = ch; 5502 } 5503 while (!this.eof()) { 5504 cp = this.codePointAt(this.index); 5505 if (!character_1.Character.isIdentifierPart(cp)) { 5506 break; 5507 } 5508 ch = character_1.Character.fromCodePoint(cp); 5509 id += ch; 5510 this.index += ch.length; 5511 // '\u' (U+005C, U+0075) denotes an escaped character. 5512 if (cp === 0x5C) { 5513 id = id.substr(0, id.length - 1); 5514 if (this.source.charCodeAt(this.index) !== 0x75) { 5515 this.throwUnexpectedToken(); 5516 } 5517 ++this.index; 5518 if (this.source[this.index] === '{') { 5519 ++this.index; 5520 ch = this.scanUnicodeCodePointEscape(); 5521 } 5522 else { 5523 ch = this.scanHexEscape('u'); 5524 if (ch === null || ch === '\\' || !character_1.Character.isIdentifierPart(ch.charCodeAt(0))) { 5525 this.throwUnexpectedToken(); 5526 } 5527 } 5528 id += ch; 5529 } 5530 } 5531 return id; 5532 }; 5533 Scanner.prototype.octalToDecimal = function (ch) { 5534 // \0 is not octal escape sequence 5535 var octal = (ch !== '0'); 5536 var code = octalValue(ch); 5537 if (!this.eof() && character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) { 5538 octal = true; 5539 code = code * 8 + octalValue(this.source[this.index++]); 5540 // 3 digits are only allowed when string starts 5541 // with 0, 1, 2, 3 5542 if ('0123'.indexOf(ch) >= 0 && !this.eof() && character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) { 5543 code = code * 8 + octalValue(this.source[this.index++]); 5544 } 5545 } 5546 return { 5547 code: code, 5548 octal: octal 5549 }; 5550 }; 5551 // https://tc39.github.io/ecma262/#sec-names-and-keywords 5552 Scanner.prototype.scanIdentifier = function () { 5553 var type; 5554 var start = this.index; 5555 // Backslash (U+005C) starts an escaped character. 5556 var id = (this.source.charCodeAt(start) === 0x5C) ? this.getComplexIdentifier() : this.getIdentifier(); 5557 // There is no keyword or literal with only one character. 5558 // Thus, it must be an identifier. 5559 if (id.length === 1) { 5560 type = 3 /* Identifier */; 5561 } 5562 else if (this.isKeyword(id)) { 5563 type = 4 /* Keyword */; 5564 } 5565 else if (id === 'null') { 5566 type = 5 /* NullLiteral */; 5567 } 5568 else if (id === 'true' || id === 'false') { 5569 type = 1 /* BooleanLiteral */; 5570 } 5571 else { 5572 type = 3 /* Identifier */; 5573 } 5574 if (type !== 3 /* Identifier */ && (start + id.length !== this.index)) { 5575 var restore = this.index; 5576 this.index = start; 5577 this.tolerateUnexpectedToken(messages_1.Messages.InvalidEscapedReservedWord); 5578 this.index = restore; 5579 } 5580 return { 5581 type: type, 5582 value: id, 5583 lineNumber: this.lineNumber, 5584 lineStart: this.lineStart, 5585 start: start, 5586 end: this.index 5587 }; 5588 }; 5589 // https://tc39.github.io/ecma262/#sec-punctuators 5590 Scanner.prototype.scanPunctuator = function () { 5591 var start = this.index; 5592 // Check for most common single-character punctuators. 5593 var str = this.source[this.index]; 5594 switch (str) { 5595 case '(': 5596 case '{': 5597 if (str === '{') { 5598 this.curlyStack.push('{'); 5599 } 5600 ++this.index; 5601 break; 5602 case '.': 5603 ++this.index; 5604 if (this.source[this.index] === '.' && this.source[this.index + 1] === '.') { 5605 // Spread operator: ... 5606 this.index += 2; 5607 str = '...'; 5608 } 5609 break; 5610 case '}': 5611 ++this.index; 5612 this.curlyStack.pop(); 5613 break; 5614 case ')': 5615 case ';': 5616 case ',': 5617 case '[': 5618 case ']': 5619 case ':': 5620 case '?': 5621 case '~': 5622 ++this.index; 5623 break; 5624 default: 5625 // 4-character punctuator. 5626 str = this.source.substr(this.index, 4); 5627 if (str === '>>>=') { 5628 this.index += 4; 5629 } 5630 else { 5631 // 3-character punctuators. 5632 str = str.substr(0, 3); 5633 if (str === '===' || str === '!==' || str === '>>>' || 5634 str === '<<=' || str === '>>=' || str === '**=') { 5635 this.index += 3; 5636 } 5637 else { 5638 // 2-character punctuators. 5639 str = str.substr(0, 2); 5640 if (str === '&&' || str === '||' || str === '==' || str === '!=' || 5641 str === '+=' || str === '-=' || str === '*=' || str === '/=' || 5642 str === '++' || str === '--' || str === '<<' || str === '>>' || 5643 str === '&=' || str === '|=' || str === '^=' || str === '%=' || 5644 str === '<=' || str === '>=' || str === '=>' || str === '**') { 5645 this.index += 2; 5646 } 5647 else { 5648 // 1-character punctuators. 5649 str = this.source[this.index]; 5650 if ('<>=!+-*%&|^/'.indexOf(str) >= 0) { 5651 ++this.index; 5652 } 5653 } 5654 } 5655 } 5656 } 5657 if (this.index === start) { 5658 this.throwUnexpectedToken(); 5659 } 5660 return { 5661 type: 7 /* Punctuator */, 5662 value: str, 5663 lineNumber: this.lineNumber, 5664 lineStart: this.lineStart, 5665 start: start, 5666 end: this.index 5667 }; 5668 }; 5669 // https://tc39.github.io/ecma262/#sec-literals-numeric-literals 5670 Scanner.prototype.scanHexLiteral = function (start) { 5671 var num = ''; 5672 while (!this.eof()) { 5673 if (!character_1.Character.isHexDigit(this.source.charCodeAt(this.index))) { 5674 break; 5675 } 5676 num += this.source[this.index++]; 5677 } 5678 if (num.length === 0) { 5679 this.throwUnexpectedToken(); 5680 } 5681 if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index))) { 5682 this.throwUnexpectedToken(); 5683 } 5684 return { 5685 type: 6 /* NumericLiteral */, 5686 value: parseInt('0x' + num, 16), 5687 lineNumber: this.lineNumber, 5688 lineStart: this.lineStart, 5689 start: start, 5690 end: this.index 5691 }; 5692 }; 5693 Scanner.prototype.scanBinaryLiteral = function (start) { 5694 var num = ''; 5695 var ch; 5696 while (!this.eof()) { 5697 ch = this.source[this.index]; 5698 if (ch !== '0' && ch !== '1') { 5699 break; 5700 } 5701 num += this.source[this.index++]; 5702 } 5703 if (num.length === 0) { 5704 // only 0b or 0B 5705 this.throwUnexpectedToken(); 5706 } 5707 if (!this.eof()) { 5708 ch = this.source.charCodeAt(this.index); 5709 /* istanbul ignore else */ 5710 if (character_1.Character.isIdentifierStart(ch) || character_1.Character.isDecimalDigit(ch)) { 5711 this.throwUnexpectedToken(); 5712 } 5713 } 5714 return { 5715 type: 6 /* NumericLiteral */, 5716 value: parseInt(num, 2), 5717 lineNumber: this.lineNumber, 5718 lineStart: this.lineStart, 5719 start: start, 5720 end: this.index 5721 }; 5722 }; 5723 Scanner.prototype.scanOctalLiteral = function (prefix, start) { 5724 var num = ''; 5725 var octal = false; 5726 if (character_1.Character.isOctalDigit(prefix.charCodeAt(0))) { 5727 octal = true; 5728 num = '0' + this.source[this.index++]; 5729 } 5730 else { 5731 ++this.index; 5732 } 5733 while (!this.eof()) { 5734 if (!character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) { 5735 break; 5736 } 5737 num += this.source[this.index++]; 5738 } 5739 if (!octal && num.length === 0) { 5740 // only 0o or 0O 5741 this.throwUnexpectedToken(); 5742 } 5743 if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index)) || character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) { 5744 this.throwUnexpectedToken(); 5745 } 5746 return { 5747 type: 6 /* NumericLiteral */, 5748 value: parseInt(num, 8), 5749 octal: octal, 5750 lineNumber: this.lineNumber, 5751 lineStart: this.lineStart, 5752 start: start, 5753 end: this.index 5754 }; 5755 }; 5756 Scanner.prototype.isImplicitOctalLiteral = function () { 5757 // Implicit octal, unless there is a non-octal digit. 5758 // (Annex B.1.1 on Numeric Literals) 5759 for (var i = this.index + 1; i < this.length; ++i) { 5760 var ch = this.source[i]; 5761 if (ch === '8' || ch === '9') { 5762 return false; 5763 } 5764 if (!character_1.Character.isOctalDigit(ch.charCodeAt(0))) { 5765 return true; 5766 } 5767 } 5768 return true; 5769 }; 5770 Scanner.prototype.scanNumericLiteral = function () { 5771 var start = this.index; 5772 var ch = this.source[start]; 5773 assert_1.assert(character_1.Character.isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'), 'Numeric literal must start with a decimal digit or a decimal point'); 5774 var num = ''; 5775 if (ch !== '.') { 5776 num = this.source[this.index++]; 5777 ch = this.source[this.index]; 5778 // Hex number starts with '0x'. 5779 // Octal number starts with '0'. 5780 // Octal number in ES6 starts with '0o'. 5781 // Binary number in ES6 starts with '0b'. 5782 if (num === '0') { 5783 if (ch === 'x' || ch === 'X') { 5784 ++this.index; 5785 return this.scanHexLiteral(start); 5786 } 5787 if (ch === 'b' || ch === 'B') { 5788 ++this.index; 5789 return this.scanBinaryLiteral(start); 5790 } 5791 if (ch === 'o' || ch === 'O') { 5792 return this.scanOctalLiteral(ch, start); 5793 } 5794 if (ch && character_1.Character.isOctalDigit(ch.charCodeAt(0))) { 5795 if (this.isImplicitOctalLiteral()) { 5796 return this.scanOctalLiteral(ch, start); 5797 } 5798 } 5799 } 5800 while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) { 5801 num += this.source[this.index++]; 5802 } 5803 ch = this.source[this.index]; 5804 } 5805 if (ch === '.') { 5806 num += this.source[this.index++]; 5807 while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) { 5808 num += this.source[this.index++]; 5809 } 5810 ch = this.source[this.index]; 5811 } 5812 if (ch === 'e' || ch === 'E') { 5813 num += this.source[this.index++]; 5814 ch = this.source[this.index]; 5815 if (ch === '+' || ch === '-') { 5816 num += this.source[this.index++]; 5817 } 5818 if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) { 5819 while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) { 5820 num += this.source[this.index++]; 5821 } 5822 } 5823 else { 5824 this.throwUnexpectedToken(); 5825 } 5826 } 5827 if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index))) { 5828 this.throwUnexpectedToken(); 5829 } 5830 return { 5831 type: 6 /* NumericLiteral */, 5832 value: parseFloat(num), 5833 lineNumber: this.lineNumber, 5834 lineStart: this.lineStart, 5835 start: start, 5836 end: this.index 5837 }; 5838 }; 5839 // https://tc39.github.io/ecma262/#sec-literals-string-literals 5840 Scanner.prototype.scanStringLiteral = function () { 5841 var start = this.index; 5842 var quote = this.source[start]; 5843 assert_1.assert((quote === '\'' || quote === '"'), 'String literal must starts with a quote'); 5844 ++this.index; 5845 var octal = false; 5846 var str = ''; 5847 while (!this.eof()) { 5848 var ch = this.source[this.index++]; 5849 if (ch === quote) { 5850 quote = ''; 5851 break; 5852 } 5853 else if (ch === '\\') { 5854 ch = this.source[this.index++]; 5855 if (!ch || !character_1.Character.isLineTerminator(ch.charCodeAt(0))) { 5856 switch (ch) { 5857 case 'u': 5858 if (this.source[this.index] === '{') { 5859 ++this.index; 5860 str += this.scanUnicodeCodePointEscape(); 5861 } 5862 else { 5863 var unescaped_1 = this.scanHexEscape(ch); 5864 if (unescaped_1 === null) { 5865 this.throwUnexpectedToken(); 5866 } 5867 str += unescaped_1; 5868 } 5869 break; 5870 case 'x': 5871 var unescaped = this.scanHexEscape(ch); 5872 if (unescaped === null) { 5873 this.throwUnexpectedToken(messages_1.Messages.InvalidHexEscapeSequence); 5874 } 5875 str += unescaped; 5876 break; 5877 case 'n': 5878 str += '\n'; 5879 break; 5880 case 'r': 5881 str += '\r'; 5882 break; 5883 case 't': 5884 str += '\t'; 5885 break; 5886 case 'b': 5887 str += '\b'; 5888 break; 5889 case 'f': 5890 str += '\f'; 5891 break; 5892 case 'v': 5893 str += '\x0B'; 5894 break; 5895 case '8': 5896 case '9': 5897 str += ch; 5898 this.tolerateUnexpectedToken(); 5899 break; 5900 default: 5901 if (ch && character_1.Character.isOctalDigit(ch.charCodeAt(0))) { 5902 var octToDec = this.octalToDecimal(ch); 5903 octal = octToDec.octal || octal; 5904 str += String.fromCharCode(octToDec.code); 5905 } 5906 else { 5907 str += ch; 5908 } 5909 break; 5910 } 5911 } 5912 else { 5913 ++this.lineNumber; 5914 if (ch === '\r' && this.source[this.index] === '\n') { 5915 ++this.index; 5916 } 5917 this.lineStart = this.index; 5918 } 5919 } 5920 else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) { 5921 break; 5922 } 5923 else { 5924 str += ch; 5925 } 5926 } 5927 if (quote !== '') { 5928 this.index = start; 5929 this.throwUnexpectedToken(); 5930 } 5931 return { 5932 type: 8 /* StringLiteral */, 5933 value: str, 5934 octal: octal, 5935 lineNumber: this.lineNumber, 5936 lineStart: this.lineStart, 5937 start: start, 5938 end: this.index 5939 }; 5940 }; 5941 // https://tc39.github.io/ecma262/#sec-template-literal-lexical-components 5942 Scanner.prototype.scanTemplate = function () { 5943 var cooked = ''; 5944 var terminated = false; 5945 var start = this.index; 5946 var head = (this.source[start] === '`'); 5947 var tail = false; 5948 var rawOffset = 2; 5949 ++this.index; 5950 while (!this.eof()) { 5951 var ch = this.source[this.index++]; 5952 if (ch === '`') { 5953 rawOffset = 1; 5954 tail = true; 5955 terminated = true; 5956 break; 5957 } 5958 else if (ch === '$') { 5959 if (this.source[this.index] === '{') { 5960 this.curlyStack.push('${'); 5961 ++this.index; 5962 terminated = true; 5963 break; 5964 } 5965 cooked += ch; 5966 } 5967 else if (ch === '\\') { 5968 ch = this.source[this.index++]; 5969 if (!character_1.Character.isLineTerminator(ch.charCodeAt(0))) { 5970 switch (ch) { 5971 case 'n': 5972 cooked += '\n'; 5973 break; 5974 case 'r': 5975 cooked += '\r'; 5976 break; 5977 case 't': 5978 cooked += '\t'; 5979 break; 5980 case 'u': 5981 if (this.source[this.index] === '{') { 5982 ++this.index; 5983 cooked += this.scanUnicodeCodePointEscape(); 5984 } 5985 else { 5986 var restore = this.index; 5987 var unescaped_2 = this.scanHexEscape(ch); 5988 if (unescaped_2 !== null) { 5989 cooked += unescaped_2; 5990 } 5991 else { 5992 this.index = restore; 5993 cooked += ch; 5994 } 5995 } 5996 break; 5997 case 'x': 5998 var unescaped = this.scanHexEscape(ch); 5999 if (unescaped === null) { 6000 this.throwUnexpectedToken(messages_1.Messages.InvalidHexEscapeSequence); 6001 } 6002 cooked += unescaped; 6003 break; 6004 case 'b': 6005 cooked += '\b'; 6006 break; 6007 case 'f': 6008 cooked += '\f'; 6009 break; 6010 case 'v': 6011 cooked += '\v'; 6012 break; 6013 default: 6014 if (ch === '0') { 6015 if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) { 6016 // Illegal: \01 \02 and so on 6017 this.throwUnexpectedToken(messages_1.Messages.TemplateOctalLiteral); 6018 } 6019 cooked += '\0'; 6020 } 6021 else if (character_1.Character.isOctalDigit(ch.charCodeAt(0))) { 6022 // Illegal: \1 \2 6023 this.throwUnexpectedToken(messages_1.Messages.TemplateOctalLiteral); 6024 } 6025 else { 6026 cooked += ch; 6027 } 6028 break; 6029 } 6030 } 6031 else { 6032 ++this.lineNumber; 6033 if (ch === '\r' && this.source[this.index] === '\n') { 6034 ++this.index; 6035 } 6036 this.lineStart = this.index; 6037 } 6038 } 6039 else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) { 6040 ++this.lineNumber; 6041 if (ch === '\r' && this.source[this.index] === '\n') { 6042 ++this.index; 6043 } 6044 this.lineStart = this.index; 6045 cooked += '\n'; 6046 } 6047 else { 6048 cooked += ch; 6049 } 6050 } 6051 if (!terminated) { 6052 this.throwUnexpectedToken(); 6053 } 6054 if (!head) { 6055 this.curlyStack.pop(); 6056 } 6057 return { 6058 type: 10 /* Template */, 6059 value: this.source.slice(start + 1, this.index - rawOffset), 6060 cooked: cooked, 6061 head: head, 6062 tail: tail, 6063 lineNumber: this.lineNumber, 6064 lineStart: this.lineStart, 6065 start: start, 6066 end: this.index 6067 }; 6068 }; 6069 // https://tc39.github.io/ecma262/#sec-literals-regular-expression-literals 6070 Scanner.prototype.testRegExp = function (pattern, flags) { 6071 // The BMP character to use as a replacement for astral symbols when 6072 // translating an ES6 "u"-flagged pattern to an ES5-compatible 6073 // approximation. 6074 // Note: replacing with '\uFFFF' enables false positives in unlikely 6075 // scenarios. For example, `[\u{1044f}-\u{10440}]` is an invalid 6076 // pattern that would not be detected by this substitution. 6077 var astralSubstitute = '\uFFFF'; 6078 var tmp = pattern; 6079 var self = this; 6080 if (flags.indexOf('u') >= 0) { 6081 tmp = tmp 6082 .replace(/\\u\{([0-9a-fA-F]+)\}|\\u([a-fA-F0-9]{4})/g, function ($0, $1, $2) { 6083 var codePoint = parseInt($1 || $2, 16); 6084 if (codePoint > 0x10FFFF) { 6085 self.throwUnexpectedToken(messages_1.Messages.InvalidRegExp); 6086 } 6087 if (codePoint <= 0xFFFF) { 6088 return String.fromCharCode(codePoint); 6089 } 6090 return astralSubstitute; 6091 }) 6092 .replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g, astralSubstitute); 6093 } 6094 // First, detect invalid regular expressions. 6095 try { 6096 RegExp(tmp); 6097 } 6098 catch (e) { 6099 this.throwUnexpectedToken(messages_1.Messages.InvalidRegExp); 6100 } 6101 // Return a regular expression object for this pattern-flag pair, or 6102 // `null` in case the current environment doesn't support the flags it 6103 // uses. 6104 try { 6105 return new RegExp(pattern, flags); 6106 } 6107 catch (exception) { 6108 /* istanbul ignore next */ 6109 return null; 6110 } 6111 }; 6112 Scanner.prototype.scanRegExpBody = function () { 6113 var ch = this.source[this.index]; 6114 assert_1.assert(ch === '/', 'Regular expression literal must start with a slash'); 6115 var str = this.source[this.index++]; 6116 var classMarker = false; 6117 var terminated = false; 6118 while (!this.eof()) { 6119 ch = this.source[this.index++]; 6120 str += ch; 6121 if (ch === '\\') { 6122 ch = this.source[this.index++]; 6123 // https://tc39.github.io/ecma262/#sec-literals-regular-expression-literals 6124 if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) { 6125 this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp); 6126 } 6127 str += ch; 6128 } 6129 else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) { 6130 this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp); 6131 } 6132 else if (classMarker) { 6133 if (ch === ']') { 6134 classMarker = false; 6135 } 6136 } 6137 else { 6138 if (ch === '/') { 6139 terminated = true; 6140 break; 6141 } 6142 else if (ch === '[') { 6143 classMarker = true; 6144 } 6145 } 6146 } 6147 if (!terminated) { 6148 this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp); 6149 } 6150 // Exclude leading and trailing slash. 6151 return str.substr(1, str.length - 2); 6152 }; 6153 Scanner.prototype.scanRegExpFlags = function () { 6154 var str = ''; 6155 var flags = ''; 6156 while (!this.eof()) { 6157 var ch = this.source[this.index]; 6158 if (!character_1.Character.isIdentifierPart(ch.charCodeAt(0))) { 6159 break; 6160 } 6161 ++this.index; 6162 if (ch === '\\' && !this.eof()) { 6163 ch = this.source[this.index]; 6164 if (ch === 'u') { 6165 ++this.index; 6166 var restore = this.index; 6167 var char = this.scanHexEscape('u'); 6168 if (char !== null) { 6169 flags += char; 6170 for (str += '\\u'; restore < this.index; ++restore) { 6171 str += this.source[restore]; 6172 } 6173 } 6174 else { 6175 this.index = restore; 6176 flags += 'u'; 6177 str += '\\u'; 6178 } 6179 this.tolerateUnexpectedToken(); 6180 } 6181 else { 6182 str += '\\'; 6183 this.tolerateUnexpectedToken(); 6184 } 6185 } 6186 else { 6187 flags += ch; 6188 str += ch; 6189 } 6190 } 6191 return flags; 6192 }; 6193 Scanner.prototype.scanRegExp = function () { 6194 var start = this.index; 6195 var pattern = this.scanRegExpBody(); 6196 var flags = this.scanRegExpFlags(); 6197 var value = this.testRegExp(pattern, flags); 6198 return { 6199 type: 9 /* RegularExpression */, 6200 value: '', 6201 pattern: pattern, 6202 flags: flags, 6203 regex: value, 6204 lineNumber: this.lineNumber, 6205 lineStart: this.lineStart, 6206 start: start, 6207 end: this.index 6208 }; 6209 }; 6210 Scanner.prototype.lex = function () { 6211 if (this.eof()) { 6212 return { 6213 type: 2 /* EOF */, 6214 value: '', 6215 lineNumber: this.lineNumber, 6216 lineStart: this.lineStart, 6217 start: this.index, 6218 end: this.index 6219 }; 6220 } 6221 var cp = this.source.charCodeAt(this.index); 6222 if (character_1.Character.isIdentifierStart(cp)) { 6223 return this.scanIdentifier(); 6224 } 6225 // Very common: ( and ) and ; 6226 if (cp === 0x28 || cp === 0x29 || cp === 0x3B) { 6227 return this.scanPunctuator(); 6228 } 6229 // String literal starts with single quote (U+0027) or double quote (U+0022). 6230 if (cp === 0x27 || cp === 0x22) { 6231 return this.scanStringLiteral(); 6232 } 6233 // Dot (.) U+002E can also start a floating-point number, hence the need 6234 // to check the next character. 6235 if (cp === 0x2E) { 6236 if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index + 1))) { 6237 return this.scanNumericLiteral(); 6238 } 6239 return this.scanPunctuator(); 6240 } 6241 if (character_1.Character.isDecimalDigit(cp)) { 6242 return this.scanNumericLiteral(); 6243 } 6244 // Template literals start with ` (U+0060) for template head 6245 // or } (U+007D) for template middle or template tail. 6246 if (cp === 0x60 || (cp === 0x7D && this.curlyStack[this.curlyStack.length - 1] === '${')) { 6247 return this.scanTemplate(); 6248 } 6249 // Possible identifier start in a surrogate pair. 6250 if (cp >= 0xD800 && cp < 0xDFFF) { 6251 if (character_1.Character.isIdentifierStart(this.codePointAt(this.index))) { 6252 return this.scanIdentifier(); 6253 } 6254 } 6255 return this.scanPunctuator(); 6256 }; 6257 return Scanner; 6258 }()); 6259 exports.Scanner = Scanner; 6260 6261 6262 /***/ }, 6263 /* 13 */ 6264 /***/ function(module, exports) { 6265 6266 "use strict"; 6267 Object.defineProperty(exports, "__esModule", { value: true }); 6268 exports.TokenName = {}; 6269 exports.TokenName[1 /* BooleanLiteral */] = 'Boolean'; 6270 exports.TokenName[2 /* EOF */] = '<end>'; 6271 exports.TokenName[3 /* Identifier */] = 'Identifier'; 6272 exports.TokenName[4 /* Keyword */] = 'Keyword'; 6273 exports.TokenName[5 /* NullLiteral */] = 'Null'; 6274 exports.TokenName[6 /* NumericLiteral */] = 'Numeric'; 6275 exports.TokenName[7 /* Punctuator */] = 'Punctuator'; 6276 exports.TokenName[8 /* StringLiteral */] = 'String'; 6277 exports.TokenName[9 /* RegularExpression */] = 'RegularExpression'; 6278 exports.TokenName[10 /* Template */] = 'Template'; 6279 6280 6281 /***/ }, 6282 /* 14 */ 6283 /***/ function(module, exports) { 6284 6285 "use strict"; 6286 // Generated by generate-xhtml-entities.js. DO NOT MODIFY! 6287 Object.defineProperty(exports, "__esModule", { value: true }); 6288 exports.XHTMLEntities = { 6289 quot: '\u0022', 6290 amp: '\u0026', 6291 apos: '\u0027', 6292 gt: '\u003E', 6293 nbsp: '\u00A0', 6294 iexcl: '\u00A1', 6295 cent: '\u00A2', 6296 pound: '\u00A3', 6297 curren: '\u00A4', 6298 yen: '\u00A5', 6299 brvbar: '\u00A6', 6300 sect: '\u00A7', 6301 uml: '\u00A8', 6302 copy: '\u00A9', 6303 ordf: '\u00AA', 6304 laquo: '\u00AB', 6305 not: '\u00AC', 6306 shy: '\u00AD', 6307 reg: '\u00AE', 6308 macr: '\u00AF', 6309 deg: '\u00B0', 6310 plusmn: '\u00B1', 6311 sup2: '\u00B2', 6312 sup3: '\u00B3', 6313 acute: '\u00B4', 6314 micro: '\u00B5', 6315 para: '\u00B6', 6316 middot: '\u00B7', 6317 cedil: '\u00B8', 6318 sup1: '\u00B9', 6319 ordm: '\u00BA', 6320 raquo: '\u00BB', 6321 frac14: '\u00BC', 6322 frac12: '\u00BD', 6323 frac34: '\u00BE', 6324 iquest: '\u00BF', 6325 Agrave: '\u00C0', 6326 Aacute: '\u00C1', 6327 Acirc: '\u00C2', 6328 Atilde: '\u00C3', 6329 Auml: '\u00C4', 6330 Aring: '\u00C5', 6331 AElig: '\u00C6', 6332 Ccedil: '\u00C7', 6333 Egrave: '\u00C8', 6334 Eacute: '\u00C9', 6335 Ecirc: '\u00CA', 6336 Euml: '\u00CB', 6337 Igrave: '\u00CC', 6338 Iacute: '\u00CD', 6339 Icirc: '\u00CE', 6340 Iuml: '\u00CF', 6341 ETH: '\u00D0', 6342 Ntilde: '\u00D1', 6343 Ograve: '\u00D2', 6344 Oacute: '\u00D3', 6345 Ocirc: '\u00D4', 6346 Otilde: '\u00D5', 6347 Ouml: '\u00D6', 6348 times: '\u00D7', 6349 Oslash: '\u00D8', 6350 Ugrave: '\u00D9', 6351 Uacute: '\u00DA', 6352 Ucirc: '\u00DB', 6353 Uuml: '\u00DC', 6354 Yacute: '\u00DD', 6355 THORN: '\u00DE', 6356 szlig: '\u00DF', 6357 agrave: '\u00E0', 6358 aacute: '\u00E1', 6359 acirc: '\u00E2', 6360 atilde: '\u00E3', 6361 auml: '\u00E4', 6362 aring: '\u00E5', 6363 aelig: '\u00E6', 6364 ccedil: '\u00E7', 6365 egrave: '\u00E8', 6366 eacute: '\u00E9', 6367 ecirc: '\u00EA', 6368 euml: '\u00EB', 6369 igrave: '\u00EC', 6370 iacute: '\u00ED', 6371 icirc: '\u00EE', 6372 iuml: '\u00EF', 6373 eth: '\u00F0', 6374 ntilde: '\u00F1', 6375 ograve: '\u00F2', 6376 oacute: '\u00F3', 6377 ocirc: '\u00F4', 6378 otilde: '\u00F5', 6379 ouml: '\u00F6', 6380 divide: '\u00F7', 6381 oslash: '\u00F8', 6382 ugrave: '\u00F9', 6383 uacute: '\u00FA', 6384 ucirc: '\u00FB', 6385 uuml: '\u00FC', 6386 yacute: '\u00FD', 6387 thorn: '\u00FE', 6388 yuml: '\u00FF', 6389 OElig: '\u0152', 6390 oelig: '\u0153', 6391 Scaron: '\u0160', 6392 scaron: '\u0161', 6393 Yuml: '\u0178', 6394 fnof: '\u0192', 6395 circ: '\u02C6', 6396 tilde: '\u02DC', 6397 Alpha: '\u0391', 6398 Beta: '\u0392', 6399 Gamma: '\u0393', 6400 Delta: '\u0394', 6401 Epsilon: '\u0395', 6402 Zeta: '\u0396', 6403 Eta: '\u0397', 6404 Theta: '\u0398', 6405 Iota: '\u0399', 6406 Kappa: '\u039A', 6407 Lambda: '\u039B', 6408 Mu: '\u039C', 6409 Nu: '\u039D', 6410 Xi: '\u039E', 6411 Omicron: '\u039F', 6412 Pi: '\u03A0', 6413 Rho: '\u03A1', 6414 Sigma: '\u03A3', 6415 Tau: '\u03A4', 6416 Upsilon: '\u03A5', 6417 Phi: '\u03A6', 6418 Chi: '\u03A7', 6419 Psi: '\u03A8', 6420 Omega: '\u03A9', 6421 alpha: '\u03B1', 6422 beta: '\u03B2', 6423 gamma: '\u03B3', 6424 delta: '\u03B4', 6425 epsilon: '\u03B5', 6426 zeta: '\u03B6', 6427 eta: '\u03B7', 6428 theta: '\u03B8', 6429 iota: '\u03B9', 6430 kappa: '\u03BA', 6431 lambda: '\u03BB', 6432 mu: '\u03BC', 6433 nu: '\u03BD', 6434 xi: '\u03BE', 6435 omicron: '\u03BF', 6436 pi: '\u03C0', 6437 rho: '\u03C1', 6438 sigmaf: '\u03C2', 6439 sigma: '\u03C3', 6440 tau: '\u03C4', 6441 upsilon: '\u03C5', 6442 phi: '\u03C6', 6443 chi: '\u03C7', 6444 psi: '\u03C8', 6445 omega: '\u03C9', 6446 thetasym: '\u03D1', 6447 upsih: '\u03D2', 6448 piv: '\u03D6', 6449 ensp: '\u2002', 6450 emsp: '\u2003', 6451 thinsp: '\u2009', 6452 zwnj: '\u200C', 6453 zwj: '\u200D', 6454 lrm: '\u200E', 6455 rlm: '\u200F', 6456 ndash: '\u2013', 6457 mdash: '\u2014', 6458 lsquo: '\u2018', 6459 rsquo: '\u2019', 6460 sbquo: '\u201A', 6461 ldquo: '\u201C', 6462 rdquo: '\u201D', 6463 bdquo: '\u201E', 6464 dagger: '\u2020', 6465 Dagger: '\u2021', 6466 bull: '\u2022', 6467 hellip: '\u2026', 6468 permil: '\u2030', 6469 prime: '\u2032', 6470 Prime: '\u2033', 6471 lsaquo: '\u2039', 6472 rsaquo: '\u203A', 6473 oline: '\u203E', 6474 frasl: '\u2044', 6475 euro: '\u20AC', 6476 image: '\u2111', 6477 weierp: '\u2118', 6478 real: '\u211C', 6479 trade: '\u2122', 6480 alefsym: '\u2135', 6481 larr: '\u2190', 6482 uarr: '\u2191', 6483 rarr: '\u2192', 6484 darr: '\u2193', 6485 harr: '\u2194', 6486 crarr: '\u21B5', 6487 lArr: '\u21D0', 6488 uArr: '\u21D1', 6489 rArr: '\u21D2', 6490 dArr: '\u21D3', 6491 hArr: '\u21D4', 6492 forall: '\u2200', 6493 part: '\u2202', 6494 exist: '\u2203', 6495 empty: '\u2205', 6496 nabla: '\u2207', 6497 isin: '\u2208', 6498 notin: '\u2209', 6499 ni: '\u220B', 6500 prod: '\u220F', 6501 sum: '\u2211', 6502 minus: '\u2212', 6503 lowast: '\u2217', 6504 radic: '\u221A', 6505 prop: '\u221D', 6506 infin: '\u221E', 6507 ang: '\u2220', 6508 and: '\u2227', 6509 or: '\u2228', 6510 cap: '\u2229', 6511 cup: '\u222A', 6512 int: '\u222B', 6513 there4: '\u2234', 6514 sim: '\u223C', 6515 cong: '\u2245', 6516 asymp: '\u2248', 6517 ne: '\u2260', 6518 equiv: '\u2261', 6519 le: '\u2264', 6520 ge: '\u2265', 6521 sub: '\u2282', 6522 sup: '\u2283', 6523 nsub: '\u2284', 6524 sube: '\u2286', 6525 supe: '\u2287', 6526 oplus: '\u2295', 6527 otimes: '\u2297', 6528 perp: '\u22A5', 6529 sdot: '\u22C5', 6530 lceil: '\u2308', 6531 rceil: '\u2309', 6532 lfloor: '\u230A', 6533 rfloor: '\u230B', 6534 loz: '\u25CA', 6535 spades: '\u2660', 6536 clubs: '\u2663', 6537 hearts: '\u2665', 6538 diams: '\u2666', 6539 lang: '\u27E8', 6540 rang: '\u27E9' 6541 }; 6542 6543 6544 /***/ }, 6545 /* 15 */ 6546 /***/ function(module, exports, __webpack_require__) { 6547 6548 "use strict"; 6549 Object.defineProperty(exports, "__esModule", { value: true }); 6550 var error_handler_1 = __webpack_require__(10); 6551 var scanner_1 = __webpack_require__(12); 6552 var token_1 = __webpack_require__(13); 6553 var Reader = (function () { 6554 function Reader() { 6555 this.values = []; 6556 this.curly = this.paren = -1; 6557 } 6558 // A function following one of those tokens is an expression. 6559 Reader.prototype.beforeFunctionExpression = function (t) { 6560 return ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new', 6561 'return', 'case', 'delete', 'throw', 'void', 6562 // assignment operators 6563 '=', '+=', '-=', '*=', '**=', '/=', '%=', '<<=', '>>=', '>>>=', 6564 '&=', '|=', '^=', ',', 6565 // binary/unary operators 6566 '+', '-', '*', '**', '/', '%', '++', '--', '<<', '>>', '>>>', '&', 6567 '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=', 6568 '<=', '<', '>', '!=', '!=='].indexOf(t) >= 0; 6569 }; 6570 // Determine if forward slash (/) is an operator or part of a regular expression 6571 // https://github.com/mozilla/sweet.js/wiki/design 6572 Reader.prototype.isRegexStart = function () { 6573 var previous = this.values[this.values.length - 1]; 6574 var regex = (previous !== null); 6575 switch (previous) { 6576 case 'this': 6577 case ']': 6578 regex = false; 6579 break; 6580 case ')': 6581 var keyword = this.values[this.paren - 1]; 6582 regex = (keyword === 'if' || keyword === 'while' || keyword === 'for' || keyword === 'with'); 6583 break; 6584 case '}': 6585 // Dividing a function by anything makes little sense, 6586 // but we have to check for that. 6587 regex = false; 6588 if (this.values[this.curly - 3] === 'function') { 6589 // Anonymous function, e.g. function(){} /42 6590 var check = this.values[this.curly - 4]; 6591 regex = check ? !this.beforeFunctionExpression(check) : false; 6592 } 6593 else if (this.values[this.curly - 4] === 'function') { 6594 // Named function, e.g. function f(){} /42/ 6595 var check = this.values[this.curly - 5]; 6596 regex = check ? !this.beforeFunctionExpression(check) : true; 6597 } 6598 break; 6599 default: 6600 break; 6601 } 6602 return regex; 6603 }; 6604 Reader.prototype.push = function (token) { 6605 if (token.type === 7 /* Punctuator */ || token.type === 4 /* Keyword */) { 6606 if (token.value === '{') { 6607 this.curly = this.values.length; 6608 } 6609 else if (token.value === '(') { 6610 this.paren = this.values.length; 6611 } 6612 this.values.push(token.value); 6613 } 6614 else { 6615 this.values.push(null); 6616 } 6617 }; 6618 return Reader; 6619 }()); 6620 var Tokenizer = (function () { 6621 function Tokenizer(code, config) { 6622 this.errorHandler = new error_handler_1.ErrorHandler(); 6623 this.errorHandler.tolerant = config ? (typeof config.tolerant === 'boolean' && config.tolerant) : false; 6624 this.scanner = new scanner_1.Scanner(code, this.errorHandler); 6625 this.scanner.trackComment = config ? (typeof config.comment === 'boolean' && config.comment) : false; 6626 this.trackRange = config ? (typeof config.range === 'boolean' && config.range) : false; 6627 this.trackLoc = config ? (typeof config.loc === 'boolean' && config.loc) : false; 6628 this.buffer = []; 6629 this.reader = new Reader(); 6630 } 6631 Tokenizer.prototype.errors = function () { 6632 return this.errorHandler.errors; 6633 }; 6634 Tokenizer.prototype.getNextToken = function () { 6635 if (this.buffer.length === 0) { 6636 var comments = this.scanner.scanComments(); 6637 if (this.scanner.trackComment) { 6638 for (var i = 0; i < comments.length; ++i) { 6639 var e = comments[i]; 6640 var value = this.scanner.source.slice(e.slice[0], e.slice[1]); 6641 var comment = { 6642 type: e.multiLine ? 'BlockComment' : 'LineComment', 6643 value: value 6644 }; 6645 if (this.trackRange) { 6646 comment.range = e.range; 6647 } 6648 if (this.trackLoc) { 6649 comment.loc = e.loc; 6650 } 6651 this.buffer.push(comment); 6652 } 6653 } 6654 if (!this.scanner.eof()) { 6655 var loc = void 0; 6656 if (this.trackLoc) { 6657 loc = { 6658 start: { 6659 line: this.scanner.lineNumber, 6660 column: this.scanner.index - this.scanner.lineStart 6661 }, 6662 end: {} 6663 }; 6664 } 6665 var startRegex = (this.scanner.source[this.scanner.index] === '/') && this.reader.isRegexStart(); 6666 var token = startRegex ? this.scanner.scanRegExp() : this.scanner.lex(); 6667 this.reader.push(token); 6668 var entry = { 6669 type: token_1.TokenName[token.type], 6670 value: this.scanner.source.slice(token.start, token.end) 6671 }; 6672 if (this.trackRange) { 6673 entry.range = [token.start, token.end]; 6674 } 6675 if (this.trackLoc) { 6676 loc.end = { 6677 line: this.scanner.lineNumber, 6678 column: this.scanner.index - this.scanner.lineStart 6679 }; 6680 entry.loc = loc; 6681 } 6682 if (token.type === 9 /* RegularExpression */) { 6683 var pattern = token.pattern; 6684 var flags = token.flags; 6685 entry.regex = { pattern: pattern, flags: flags }; 6686 } 6687 this.buffer.push(entry); 6688 } 6689 } 6690 return this.buffer.shift(); 6691 }; 6692 return Tokenizer; 6693 }()); 6694 exports.Tokenizer = Tokenizer; 6695 6696 6697 /***/ } 6698 /******/ ]) 6699 }); 6700 ;
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