basant307/AI_Governance_Project
048
1let source, pos, end;2let openTokenDepth,3 templateDepth,4 lastTokenPos,5 lastSlashWasDivision,6 templateStack,7 templateStackDepth,8 openTokenPosStack,9 openClassPosStack,10 nextBraceIsClass,11 starExportMap,12 lastStarExportSpecifier,13 _exports,14 unsafeGetters,15 reexports;16 17function resetState () {18 openTokenDepth = 0;19 templateDepth = -1;20 lastTokenPos = -1;21 lastSlashWasDivision = false;22 templateStack = new Array(1024);23 templateStackDepth = 0;24 openTokenPosStack = new Array(1024);25 openClassPosStack = new Array(1024);26 nextBraceIsClass = false;27 starExportMap = Object.create(null);28 lastStarExportSpecifier = null;29 30 _exports = new Set();31 unsafeGetters = new Set();32 reexports = new Set();33}34 35// RequireType36const Import = 0;37const ExportAssign = 1;38const ExportStar = 2;39 40function parseCJS (source, name = '@') {41 resetState();42 try {43 parseSource(source);44 }45 catch (e) {46 e.message += `\n at ${name}:${source.slice(0, pos).split('\n').length}:${pos - source.lastIndexOf('\n', pos - 1)}`;47 e.loc = pos;48 throw e;49 }50 const result = { exports: [..._exports].filter(expt => expt !== undefined && !unsafeGetters.has(expt)), reexports: [...reexports].filter(reexpt => reexpt !== undefined) };51 resetState();52 return result;53}54 55function decode (str) {56 if (str[0] === '"' || str[0] === '\'') {57 try {58 const decoded = (0, eval)(str);59 // Filter to exclude non-matching UTF-16 surrogate strings60 for (let i = 0; i < decoded.length; i++) {61 const surrogatePrefix = decoded.charCodeAt(i) & 0xFC00;62 if (surrogatePrefix < 0xD800) {63 // Not a surrogate64 continue;65 }66 else if (surrogatePrefix === 0xD800) {67 // Validate surrogate pair68 if ((decoded.charCodeAt(++i) & 0xFC00) !== 0xDC00)69 return;70 }71 else {72 // Out-of-range surrogate code (above 0xD800)73 return;74 }75 }76 return decoded;77 }78 catch {}79 }80 else {81 return str;82 }83}84 85function parseSource (cjsSource) {86 source = cjsSource;87 pos = -1;88 end = source.length - 1;89 let ch = 0;90 91 // Handle #!92 if (source.charCodeAt(0) === 35/*#*/ && source.charCodeAt(1) === 33/*!*/) {93 if (source.length === 2)94 return true;95 pos += 2;96 while (pos++ < end) {97 ch = source.charCodeAt(pos);98 if (ch === 10/*\n*/ || ch === 13/*\r*/)99 break;100 }101 }102 103 while (pos++ < end) {104 ch = source.charCodeAt(pos);105 106 if (ch === 32 || ch < 14 && ch > 8)107 continue;108 109 if (openTokenDepth === 0) {110 switch (ch) {111 case 105/*i*/:112 if (source.startsWith('mport', pos + 1) && keywordStart(pos))113 throwIfImportStatement();114 lastTokenPos = pos;115 continue;116 case 114/*r*/:117 const startPos = pos;118 if (tryParseRequire(Import) && keywordStart(startPos))119 tryBacktrackAddStarExportBinding(startPos - 1);120 lastTokenPos = pos;121 continue;122 case 95/*_*/:123 if (source.startsWith('interopRequireWildcard', pos + 1) && (keywordStart(pos) || source.charCodeAt(pos - 1) === 46/*.*/)) {124 const startPos = pos;125 pos += 23;126 if (source.charCodeAt(pos) === 40/*(*/) {127 pos++;128 openTokenPosStack[openTokenDepth++] = lastTokenPos;129 if (tryParseRequire(Import) && keywordStart(startPos)) {130 tryBacktrackAddStarExportBinding(startPos - 1);131 }132 }133 }134 else if (source.startsWith('_export', pos + 1) && (keywordStart(pos) || source.charCodeAt(pos - 1) === 46/*.*/)) {135 pos += 8;136 if (source.startsWith('Star', pos))137 pos += 4;138 if (source.charCodeAt(pos) === 40/*(*/) {139 openTokenPosStack[openTokenDepth++] = lastTokenPos;140 if (source.charCodeAt(++pos) === 114/*r*/)141 tryParseRequire(ExportStar);142 }143 }144 lastTokenPos = pos;145 continue;146 }147 }148 149 switch (ch) {150 case 101/*e*/:151 if (source.startsWith('xport', pos + 1) && keywordStart(pos)) {152 if (source.charCodeAt(pos + 6) === 115/*s*/)153 tryParseExportsDotAssign(false);154 else if (openTokenDepth === 0)155 throwIfExportStatement();156 }157 break;158 case 99/*c*/:159 if (keywordStart(pos) && source.startsWith('lass', pos + 1) && isBrOrWs(source.charCodeAt(pos + 5)))160 nextBraceIsClass = true;161 break;162 case 109/*m*/:163 if (source.startsWith('odule', pos + 1) && keywordStart(pos))164 tryParseModuleExportsDotAssign();165 break;166 case 79/*O*/:167 if (source.startsWith('bject', pos + 1) && keywordStart(pos))168 tryParseObjectDefineOrKeys(openTokenDepth === 0);169 break;170 case 40/*(*/:171 openTokenPosStack[openTokenDepth++] = lastTokenPos;172 break;173 case 41/*)*/:174 if (openTokenDepth === 0)175 throw new Error('Unexpected closing bracket.');176 openTokenDepth--;177 break;178 case 123/*{*/:179 openClassPosStack[openTokenDepth] = nextBraceIsClass;180 nextBraceIsClass = false;181 openTokenPosStack[openTokenDepth++] = lastTokenPos;182 break;183 case 125/*}*/:184 if (openTokenDepth === 0)185 throw new Error('Unexpected closing brace.');186 if (openTokenDepth-- === templateDepth) {187 templateDepth = templateStack[--templateStackDepth];188 templateString();189 }190 else {191 if (templateDepth !== -1 && openTokenDepth < templateDepth)192 throw new Error('Unexpected closing brace.');193 }194 break;195 case 60/*>*/:196 // TODO: <!-- XML comment support197 break;198 case 39/*'*/:199 case 34/*"*/:200 stringLiteral(ch);201 break;202 case 47/*/*/: {203 const next_ch = source.charCodeAt(pos + 1);204 if (next_ch === 47/*/*/) {205 lineComment();206 // dont update lastToken207 continue;208 }209 else if (next_ch === 42/***/) {210 blockComment();211 // dont update lastToken212 continue;213 }214 else {215 // Division / regex ambiguity handling based on checking backtrack analysis of:216 // - what token came previously (lastToken)217 // - if a closing brace or paren, what token came before the corresponding218 // opening brace or paren (lastOpenTokenIndex)219 const lastToken = source.charCodeAt(lastTokenPos);220 if (isExpressionPunctuator(lastToken) &&221 !(lastToken === 46/*.*/ && (source.charCodeAt(lastTokenPos - 1) >= 48/*0*/ && source.charCodeAt(lastTokenPos - 1) <= 57/*9*/)) &&222 !(lastToken === 43/*+*/ && source.charCodeAt(lastTokenPos - 1) === 43/*+*/) && !(lastToken === 45/*-*/ && source.charCodeAt(lastTokenPos - 1) === 45/*-*/) ||223 lastToken === 41/*)*/ && isParenKeyword(openTokenPosStack[openTokenDepth]) ||224 lastToken === 125/*}*/ && (isExpressionTerminator(openTokenPosStack[openTokenDepth]) || openClassPosStack[openTokenDepth]) ||225 lastToken === 47/*/*/ && lastSlashWasDivision ||226 isExpressionKeyword(lastTokenPos) ||227 !lastToken) {228 regularExpression();229 lastSlashWasDivision = false;230 }231 else {232 lastSlashWasDivision = true;233 }234 }235 break;236 }237 case 96/*`*/:238 templateString();239 break;240 }241 lastTokenPos = pos;242 }243 244 if (templateDepth !== -1)245 throw new Error('Unterminated template.');246 247 if (openTokenDepth)248 throw new Error('Unterminated braces.');249}250 251function tryBacktrackAddStarExportBinding (bPos) {252 while (source.charCodeAt(bPos) === 32/* */ && bPos >= 0)253 bPos--;254 if (source.charCodeAt(bPos) === 61/*=*/) {255 bPos--;256 while (source.charCodeAt(bPos) === 32/* */ && bPos >= 0)257 bPos--;258 let codePoint;259 const id_end = bPos;260 let identifierStart = false;261 while ((codePoint = codePointAtLast(bPos)) && bPos >= 0) {262 if (codePoint === 92/*\*/)263 return;264 if (!isIdentifierChar(codePoint, true))265 break;266 identifierStart = isIdentifierStart(codePoint, true);267 bPos -= codePointLen(codePoint);268 }269 if (identifierStart && source.charCodeAt(bPos) === 32/* */) {270 const starExportId = source.slice(bPos + 1, id_end + 1);271 while (source.charCodeAt(bPos) === 32/* */ && bPos >= 0)272 bPos--;273 switch (source.charCodeAt(bPos)) {274 case 114/*r*/:275 if (!source.startsWith('va', bPos - 2))276 return;277 break;278 case 116/*t*/:279 if (!source.startsWith('le', bPos - 2) && !source.startsWith('cons', bPos - 4))280 return;281 break;282 default: return;283 }284 starExportMap[starExportId] = lastStarExportSpecifier;285 }286 }287}288 289// `Object.` `prototype.`? hasOwnProperty.call(` IDENTIFIER `, ` IDENTIFIER$2 `)`290function tryParseObjectHasOwnProperty (it_id) {291 ch = commentWhitespace();292 if (ch !== 79/*O*/ || !source.startsWith('bject', pos + 1)) return false;293 pos += 6;294 ch = commentWhitespace();295 if (ch !== 46/*.*/) return false;296 pos++;297 ch = commentWhitespace();298 if (ch === 112/*p*/) {299 if (!source.startsWith('rototype', pos + 1)) return false;300 pos += 9;301 ch = commentWhitespace();302 if (ch !== 46/*.*/) return false;303 pos++;304 ch = commentWhitespace();305 }306 if (ch !== 104/*h*/ || !source.startsWith('asOwnProperty', pos + 1)) return false;307 pos += 14;308 ch = commentWhitespace();309 if (ch !== 46/*.*/) return false;310 pos++;311 ch = commentWhitespace();312 if (ch !== 99/*c*/ || !source.startsWith('all', pos + 1)) return false;313 pos += 4;314 ch = commentWhitespace();315 if (ch !== 40/*(*/) return false;316 pos++;317 ch = commentWhitespace();318 if (!identifier()) return false;319 ch = commentWhitespace();320 if (ch !== 44/*,*/) return false;321 pos++;322 ch = commentWhitespace();323 if (!source.startsWith(it_id, pos)) return false;324 pos += it_id.length;325 ch = commentWhitespace();326 if (ch !== 41/*)*/) return false;327 pos++;328 return true;329}330 331function tryParseObjectDefineOrKeys (keys) {332 pos += 6;333 let revertPos = pos - 1;334 let ch = commentWhitespace();335 if (ch === 46/*.*/) {336 pos++;337 ch = commentWhitespace();338 if (ch === 100/*d*/ && source.startsWith('efineProperty', pos + 1)) {339 let expt;340 while (true) {341 pos += 14;342 revertPos = pos - 1;343 ch = commentWhitespace();344 if (ch !== 40/*(*/) break;345 pos++;346 ch = commentWhitespace();347 if (!readExportsOrModuleDotExports(ch)) break;348 ch = commentWhitespace();349 if (ch !== 44/*,*/) break;350 pos++;351 ch = commentWhitespace();352 if (ch !== 39/*'*/ && ch !== 34/*"*/) break;353 const exportPos = pos;354 stringLiteral(ch);355 expt = source.slice(exportPos, ++pos);356 ch = commentWhitespace();357 if (ch !== 44/*,*/) break;358 pos++;359 ch = commentWhitespace();360 if (ch !== 123/*{*/) break;361 pos++;362 ch = commentWhitespace();363 if (ch === 101/*e*/) {364 if (!source.startsWith('numerable', pos + 1)) break;365 pos += 10;366 ch = commentWhitespace();367 if (ch !== 58/*:*/) break;368 pos++;369 ch = commentWhitespace();370 if (ch !== 116/*t*/ || !source.startsWith('rue', pos + 1)) break;371 pos += 4;372 ch = commentWhitespace();373 if (ch !== 44) break;374 pos++;375 ch = commentWhitespace();376 }377 if (ch === 118/*v*/) {378 if (!source.startsWith('alue', pos + 1)) break;379 pos += 5;380 ch = commentWhitespace();381 if (ch !== 58/*:*/) break;382 _exports.add(decode(expt));383 pos = revertPos;384 return;385 }386 else if (ch === 103/*g*/) {387 if (!source.startsWith('et', pos + 1)) break;388 pos += 3;389 ch = commentWhitespace();390 if (ch === 58/*:*/) {391 pos++;392 ch = commentWhitespace();393 if (ch !== 102/*f*/) break;394 if (!source.startsWith('unction', pos + 1)) break;395 pos += 8;396 let lastPos = pos;397 ch = commentWhitespace();398 if (ch !== 40 && (lastPos === pos || !identifier())) break;399 ch = commentWhitespace();400 }401 if (ch !== 40/*(*/) break;402 pos++;403 ch = commentWhitespace();404 if (ch !== 41/*)*/) break;405 pos++;406 ch = commentWhitespace();407 if (ch !== 123/*{*/) break;408 pos++;409 ch = commentWhitespace();410 if (ch !== 114/*r*/) break;411 if (!source.startsWith('eturn', pos + 1)) break;412 pos += 6;413 ch = commentWhitespace();414 if (!identifier()) break;415 ch = commentWhitespace();416 if (ch === 46/*.*/) {417 pos++;418 commentWhitespace();419 if (!identifier()) break;420 ch = commentWhitespace();421 }422 else if (ch === 91/*[*/) {423 pos++;424 ch = commentWhitespace();425 if (ch === 39/*'*/ || ch === 34/*"*/) stringLiteral(ch);426 else break;427 pos++;428 ch = commentWhitespace();429 if (ch !== 93/*]*/) break;430 pos++;431 ch = commentWhitespace();432 }433 if (ch === 59/*;*/) {434 pos++;435 ch = commentWhitespace();436 }437 if (ch !== 125/*}*/) break;438 pos++;439 ch = commentWhitespace();440 if (ch === 44/*,*/) {441 pos++;442 ch = commentWhitespace();443 }444 if (ch !== 125/*}*/) break;445 pos++;446 ch = commentWhitespace();447 if (ch !== 41/*)*/) break;448 _exports.add(decode(expt));449 return;450 }451 break;452 }453 if (expt) {454 unsafeGetters.add(decode(expt));455 }456 }457 else if (keys && ch === 107/*k*/ && source.startsWith('eys', pos + 1)) {458 while (true) {459 pos += 4;460 revertPos = pos - 1;461 ch = commentWhitespace();462 if (ch !== 40/*(*/) break;463 pos++;464 ch = commentWhitespace();465 const id_start = pos;466 if (!identifier()) break;467 const id = source.slice(id_start, pos);468 ch = commentWhitespace();469 if (ch !== 41/*)*/) break;470 471 revertPos = pos++;472 ch = commentWhitespace();473 if (ch !== 46/*.*/) break;474 pos++;475 ch = commentWhitespace();476 if (ch !== 102/*f*/ || !source.startsWith('orEach', pos + 1)) break;477 pos += 7;478 ch = commentWhitespace();479 revertPos = pos - 1;480 if (ch !== 40/*(*/) break;481 pos++;482 ch = commentWhitespace();483 if (ch !== 102/*f*/ || !source.startsWith('unction', pos + 1)) break;484 pos += 8;485 ch = commentWhitespace();486 if (ch !== 40/*(*/) break;487 pos++;488 ch = commentWhitespace();489 const it_id_start = pos;490 if (!identifier()) break;491 const it_id = source.slice(it_id_start, pos);492 ch = commentWhitespace();493 if (ch !== 41/*)*/) break;494 pos++;495 ch = commentWhitespace();496 if (ch !== 123/*{*/) break;497 pos++;498 ch = commentWhitespace();499 if (ch !== 105/*i*/ || source.charCodeAt(pos + 1) !== 102/*f*/) break;500 pos += 2;501 ch = commentWhitespace();502 if (ch !== 40/*(*/) break;503 pos++;504 ch = commentWhitespace();505 if (!source.startsWith(it_id, pos)) break;506 pos += it_id.length;507 ch = commentWhitespace();508 // `if (` IDENTIFIER$2 `===` ( `'default'` | `"default"` ) `||` IDENTIFIER$2 `===` ( '__esModule' | `"__esModule"` ) `) return` `;`? |509 if (ch === 61/*=*/) {510 if (!source.startsWith('==', pos + 1)) break;511 pos += 3;512 ch = commentWhitespace();513 if (ch !== 34/*"*/ && ch !== 39/*'*/) break;514 let quot = ch;515 if (!source.startsWith('default', pos + 1)) break;516 pos += 8;517 ch = commentWhitespace();518 if (ch !== quot) break;519 pos += 1;520 ch = commentWhitespace();521 if (ch !== 124/*|*/ || source.charCodeAt(pos + 1) !== 124/*|*/) break;522 pos += 2;523 ch = commentWhitespace();524 if (source.slice(pos, pos + it_id.length) !== it_id) break;525 pos += it_id.length;526 ch = commentWhitespace();527 if (ch !== 61/*=*/ || source.slice(pos + 1, pos + 3) !== '==') break;528 pos += 3;529 ch = commentWhitespace();530 if (ch !== 34/*"*/ && ch !== 39/*'*/) break;531 quot = ch;532 if (!source.startsWith('__esModule', pos + 1)) break;533 pos += 11;534 ch = commentWhitespace();535 if (ch !== quot) break;536 pos += 1;537 ch = commentWhitespace();538 if (ch !== 41/*)*/) break;539 pos += 1;540 ch = commentWhitespace();541 if (ch !== 114/*r*/ || !source.startsWith('eturn', pos + 1)) break;542 pos += 6;543 ch = commentWhitespace();544 if (ch === 59/*;*/)545 pos++;546 ch = commentWhitespace();547 548 // `if (`549 if (ch === 105/*i*/ && source.charCodeAt(pos + 1) === 102/*f*/) {550 let inIf = true;551 pos += 2;552 ch = commentWhitespace();553 if (ch !== 40/*(*/) break;554 pos++;555 const ifInnerPos = pos;556 // `Object.prototype.hasOwnProperty.call(` IDENTIFIER `, ` IDENTIFIER$2 `)) return` `;`?557 if (tryParseObjectHasOwnProperty(it_id)) {558 ch = commentWhitespace();559 if (ch !== 41/*)*/) break;560 pos++;561 ch = commentWhitespace();562 if (ch !== 114/*r*/ || !source.startsWith('eturn', pos + 1)) break;563 pos += 6;564 ch = commentWhitespace();565 if (ch === 59/*;*/)566 pos++;567 ch = commentWhitespace();568 // match next if569 if (ch === 105/*i*/ && source.charCodeAt(pos + 1) === 102/*f*/) {570 pos += 2;571 ch = commentWhitespace();572 if (ch !== 40/*(*/) break;573 pos++;574 }575 else {576 inIf = false;577 }578 }579 else {580 pos = ifInnerPos;581 }582 583 // IDENTIFIER$2 `in` EXPORTS_IDENTIFIER `&&` EXPORTS_IDENTIFIER `[` IDENTIFIER$2 `] ===` IDENTIFIER$1 `[` IDENTIFIER$2 `]) return` `;`?584 if (inIf) {585 if (!source.startsWith(it_id, pos)) break;586 pos += it_id.length;587 ch = commentWhitespace();588 if (ch !== 105/*i*/ || !source.startsWith('n ', pos + 1)) break;589 pos += 3;590 ch = commentWhitespace();591 if (!readExportsOrModuleDotExports(ch)) break;592 ch = commentWhitespace();593 if (ch !== 38/*&*/ || source.charCodeAt(pos + 1) !== 38/*&*/) break;594 pos += 2;595 ch = commentWhitespace();596 if (!readExportsOrModuleDotExports(ch)) break;597 ch = commentWhitespace();598 if (ch !== 91/*[*/) break;599 pos++;600 ch = commentWhitespace();601 if (!source.startsWith(it_id, pos)) break;602 pos += it_id.length;603 ch = commentWhitespace();604 if (ch !== 93/*]*/) break;605 pos++;606 ch = commentWhitespace();607 if (ch !== 61/*=*/ || !source.startsWith('==', pos + 1)) break;608 pos += 3;609 ch = commentWhitespace();610 if (!source.startsWith(id, pos)) break;611 pos += id.length;612 ch = commentWhitespace();613 if (ch !== 91/*[*/) break;614 pos++;615 ch = commentWhitespace();616 if (!source.startsWith(it_id, pos)) break;617 pos += it_id.length;618 ch = commentWhitespace();619 if (ch !== 93/*]*/) break;620 pos++;621 ch = commentWhitespace();622 if (ch !== 41/*)*/) break;623 pos++;624 ch = commentWhitespace();625 if (ch !== 114/*r*/ || !source.startsWith('eturn', pos + 1)) break;626 pos += 6;627 ch = commentWhitespace();628 if (ch === 59/*;*/)629 pos++;630 ch = commentWhitespace();631 }632 }633 }634 // `if (` IDENTIFIER$2 `!==` ( `'default'` | `"default"` ) (`&& !` IDENTIFIER `.hasOwnProperty(` IDENTIFIER$2 `)` )? `)`635 else if (ch === 33/*!*/) {636 if (!source.startsWith('==', pos + 1)) break;637 pos += 3;638 ch = commentWhitespace();639 if (ch !== 34/*"*/ && ch !== 39/*'*/) break;640 const quot = ch;641 if (!source.startsWith('default', pos + 1)) break;642 pos += 8;643 ch = commentWhitespace();644 if (ch !== quot) break;645 pos += 1;646 ch = commentWhitespace();647 if (ch === 38/*&*/) {648 if (source.charCodeAt(pos + 1) !== 38/*&*/) break;649 pos += 2;650 ch = commentWhitespace();651 if (ch !== 33/*!*/) break;652 pos += 1;653 ch = commentWhitespace();654 if (ch === 79/*O*/ && source.startsWith('bject', pos + 1) && source[pos + 6] === '.') {655 if (!tryParseObjectHasOwnProperty(it_id)) break;656 }657 else if (identifier()) {658 ch = commentWhitespace();659 if (ch !== 46/*.*/) break;660 pos++;661 ch = commentWhitespace();662 if (ch !== 104/*h*/ || !source.startsWith('asOwnProperty', pos + 1)) break;663 pos += 14;664 ch = commentWhitespace();665 if (ch !== 40/*(*/) break;666 pos += 1;667 ch = commentWhitespace();668 if (!source.startsWith(it_id, pos)) break;669 pos += it_id.length;670 ch = commentWhitespace();671 if (ch !== 41/*)*/) break;672 pos += 1;673 }674 else break;675 ch = commentWhitespace();676 }677 if (ch !== 41/*)*/) break;678 pos += 1;679 ch = commentWhitespace();680 }681 else break;682 683 // EXPORTS_IDENTIFIER `[` IDENTIFIER$2 `] =` IDENTIFIER$1 `[` IDENTIFIER$2 `]`684 if (readExportsOrModuleDotExports(ch)) {685 ch = commentWhitespace();686 if (ch !== 91/*[*/) break;687 pos++;688 ch = commentWhitespace();689 if (source.slice(pos, pos + it_id.length) !== it_id) break;690 pos += it_id.length;691 ch = commentWhitespace();692 if (ch !== 93/*]*/) break;693 pos++;694 ch = commentWhitespace();695 if (ch !== 61/*=*/) break;696 pos++;697 ch = commentWhitespace();698 if (source.slice(pos, pos + id.length) !== id) break;699 pos += id.length;700 ch = commentWhitespace();701 if (ch !== 91/*[*/) break;702 pos++;703 ch = commentWhitespace();704 if (source.slice(pos, pos + it_id.length) !== it_id) break;705 pos += it_id.length;706 ch = commentWhitespace();707 if (ch !== 93/*]*/) break;708 pos++;709 ch = commentWhitespace();710 if (ch === 59/*;*/) {711 pos++;712 ch = commentWhitespace();713 }714 }715 // `Object.defineProperty(` EXPORTS_IDENTIFIER `, ` IDENTIFIER$2 `, { enumerable: true, get: function () { return ` IDENTIFIER$1 `[` IDENTIFIER$2 `]; } })`716 else if (ch === 79/*O*/) {717 if (source.slice(pos + 1, pos + 6) !== 'bject') break;718 pos += 6;719 ch = commentWhitespace();720 if (ch !== 46/*.*/) break;721 pos++;722 ch = commentWhitespace();723 if (ch !== 100/*d*/ || !source.startsWith('efineProperty', pos + 1)) break;724 pos += 14;725 ch = commentWhitespace();726 if (ch !== 40/*(*/) break;727 pos++;728 ch = commentWhitespace();729 if (!readExportsOrModuleDotExports(ch)) break;730 ch = commentWhitespace();731 if (ch !== 44/*,*/) break;732 pos++;733 ch = commentWhitespace();734 if (!source.startsWith(it_id, pos)) break;735 pos += it_id.length;736 ch = commentWhitespace();737 if (ch !== 44/*,*/) break;738 pos++;739 ch = commentWhitespace();740 if (ch !== 123/*{*/) break;741 pos++;742 ch = commentWhitespace();743 if (ch !== 101/*e*/ || !source.startsWith('numerable', pos + 1)) break;744 pos += 10;745 ch = commentWhitespace();746 if (ch !== 58/*:*/) break;747 pos++;748 ch = commentWhitespace();749 if (ch !== 116/*t*/ && !source.startsWith('rue', pos + 1)) break;750 pos += 4;751 ch = commentWhitespace();752 if (ch !== 44/*,*/) break;753 pos++;754 ch = commentWhitespace();755 if (ch !== 103/*g*/ || !source.startsWith('et', pos + 1)) break;756 pos += 3;757 ch = commentWhitespace();758 if (ch === 58/*:*/) {759 pos++;760 ch = commentWhitespace();761 if (ch !== 102/*f*/) break;762 if (!source.startsWith('unction', pos + 1)) break;763 pos += 8;764 let lastPos = pos;765 ch = commentWhitespace();766 if (ch !== 40 && (lastPos === pos || !identifier())) break;767 ch = commentWhitespace();768 }769 if (ch !== 40/*(*/) break;770 pos++;771 ch = commentWhitespace();772 if (ch !== 41/*)*/) break;773 pos++;774 ch = commentWhitespace();775 if (ch !== 123/*{*/) break;776 pos++;777 ch = commentWhitespace();778 if (ch !== 114/*r*/ || !source.startsWith('eturn', pos + 1)) break;779 pos += 6;780 ch = commentWhitespace();781 if (!source.startsWith(id, pos)) break;782 pos += id.length;783 ch = commentWhitespace();784 if (ch !== 91/*[*/) break;785 pos++;786 ch = commentWhitespace();787 if (!source.startsWith(it_id, pos)) break;788 pos += it_id.length;789 ch = commentWhitespace();790 if (ch !== 93/*]*/) break;791 pos++;792 ch = commentWhitespace();793 if (ch === 59/*;*/) {794 pos++;795 ch = commentWhitespace();796 }797 if (ch !== 125/*}*/) break;798 pos++;799 ch = commentWhitespace();800 if (ch === 44/*,*/) {801 pos++;802 ch = commentWhitespace();803 }804 if (ch !== 125/*}*/) break;805 pos++;806 ch = commentWhitespace();807 if (ch !== 41/*)*/) break;808 pos++;809 ch = commentWhitespace();810 if (ch === 59/*;*/) {811 pos++;812 ch = commentWhitespace();813 }814 }815 else break;816 817 if (ch !== 125/*}*/) break;818 pos++;819 ch = commentWhitespace();820 if (ch !== 41/*)*/) break;821 822 const starExportSpecifier = starExportMap[id];823 if (starExportSpecifier) {824 reexports.add(decode(starExportSpecifier));825 pos = revertPos;826 return;827 }828 return;829 }830 }831 }832 pos = revertPos;833}834 835function readExportsOrModuleDotExports (ch) {836 const revertPos = pos;837 if (ch === 109/*m*/ && source.startsWith('odule', pos + 1)) {838 pos += 6;839 ch = commentWhitespace();840 if (ch !== 46/*.*/) {841 pos = revertPos;842 return false;843 }844 pos++;845 ch = commentWhitespace();846 }847 if (ch === 101/*e*/ && source.startsWith('xports', pos + 1)) {848 pos += 7;849 return true;850 }851 else {852 pos = revertPos;853 return false;854 }855}856 857function tryParseModuleExportsDotAssign () {858 pos += 6;859 const revertPos = pos - 1;860 let ch = commentWhitespace();861 if (ch === 46/*.*/) {862 pos++;863 ch = commentWhitespace();864 if (ch === 101/*e*/ && source.startsWith('xports', pos + 1)) {865 tryParseExportsDotAssign(true);866 return;867 }868 }869 pos = revertPos;870}871 872function tryParseExportsDotAssign (assign) {873 pos += 7;874 const revertPos = pos - 1;875 let ch = commentWhitespace();876 switch (ch) {877 // exports.asdf878 case 46/*.*/: {879 pos++;880 ch = commentWhitespace();881 const startPos = pos;882 if (identifier()) {883 const endPos = pos;884 ch = commentWhitespace();885 if (ch === 61/*=*/) {886 _exports.add(decode(source.slice(startPos, endPos)));887 return;888 }889 }890 break;891 }892 // exports['asdf']893 case 91/*[*/: {894 pos++;895 ch = commentWhitespace();896 if (ch === 39/*'*/ || ch === 34/*"*/) {897 const startPos = pos;898 stringLiteral(ch);899 const endPos = ++pos;900 ch = commentWhitespace();901 if (ch !== 93/*]*/) break;902 pos++;903 ch = commentWhitespace();904 if (ch !== 61/*=*/) break;905 _exports.add(decode(source.slice(startPos, endPos)));906 }907 break;908 }909 // module.exports =910 case 61/*=*/: {911 if (assign) {912 if (reexports.size)913 reexports = new Set();914 pos++;915 ch = commentWhitespace();916 // { ... }917 if (ch === 123/*{*/) {918 tryParseLiteralExports();919 return;920 }921 922 // require('...')923 if (ch === 114/*r*/)924 tryParseRequire(ExportAssign);925 }926 }927 }928 pos = revertPos;929}930 931function tryParseRequire (requireType) {932 // require('...')933 const revertPos = pos;934 if (source.startsWith('equire', pos + 1)) {935 pos += 7;936 let ch = commentWhitespace();937 if (ch === 40/*(*/) {938 pos++;939 ch = commentWhitespace();940 const reexportStart = pos;941 if (ch === 39/*'*/ || ch === 34/*"*/) {942 stringLiteral(ch);943 const reexportEnd = ++pos;944 ch = commentWhitespace();945 if (ch === 41/*)*/) {946 switch (requireType) {947 case ExportAssign:948 reexports.add(decode(source.slice(reexportStart, reexportEnd)));949 return true;950 case ExportStar:951 reexports.add(decode(source.slice(reexportStart, reexportEnd)));952 return true;953 default:954 lastStarExportSpecifier = decode(source.slice(reexportStart, reexportEnd));955 return true;956 }957 }958 }959 }960 pos = revertPos;961 }962 return false;963}964 965function tryParseLiteralExports () {966 const revertPos = pos - 1;967 while (pos++ < end) {968 let ch = commentWhitespace();969 const startPos = pos;970 if (identifier()) {971 const endPos = pos;972 ch = commentWhitespace();973 if (ch === 58/*:*/) {974 pos++;975 ch = commentWhitespace();976 // nothing more complex than identifier expressions for now977 if (!identifier()) {978 pos = revertPos;979 return;980 }981 ch = source.charCodeAt(pos);982 }983 _exports.add(decode(source.slice(startPos, endPos)));984 }985 else if (ch === 46/*.*/ && source.startsWith('..', pos + 1)) {986 pos += 3;987 if (source.charCodeAt(pos) === 114/*r*/ && tryParseRequire(ExportAssign)) {988 pos++;989 }990 else if (!identifier()) {991 pos = revertPos;992 return;993 }994 ch = commentWhitespace();995 }996 else if (ch === 39/*'*/ || ch === 34/*"*/) {997 const startPos = pos;998 stringLiteral(ch);999 const endPos = ++pos;1000 ch = commentWhitespace();1001 if (ch === 58/*:*/) {1002 pos++;1003 ch = commentWhitespace();1004 // nothing more complex than identifier expressions for now1005 if (!identifier()) {1006 pos = revertPos;1007 return;1008 }1009 ch = source.charCodeAt(pos);1010 _exports.add(decode(source.slice(startPos, endPos)));1011 }1012 }1013 else {1014 pos = revertPos;1015 return;1016 }1017 1018 if (ch === 125/*}*/)1019 return;1020 1021 if (ch !== 44/*,*/) {1022 pos = revertPos;1023 return;1024 }1025 }1026}1027 1028// --- Extracted from AcornJS ---1029//(https://github.com/acornjs/acorn/blob/master/acorn/src/identifier.js#L231030//1031// MIT License1032 1033// Copyright (C) 2012-2018 by various contributors (see AUTHORS)1034 1035// Permission is hereby granted, free of charge, to any person obtaining a copy1036// of this software and associated documentation files (the "Software"), to deal1037// in the Software without restriction, including without limitation the rights1038// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell1039// copies of the Software, and to permit persons to whom the Software is1040// furnished to do so, subject to the following conditions:1041 1042// The above copyright notice and this permission notice shall be included in1043// all copies or substantial portions of the Software.1044 1045// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR1046// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,1047// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE1048// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER1049// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,1050// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN1051// THE SOFTWARE.1052 1053// ## Character categories1054 1055// Big ugly regular expressions that match characters in the1056// whitespace, identifier, and identifier-start categories. These1057// are only applied when a character is found to actually have a1058// code point above 128.1059// Generated by `bin/generate-identifier-regex.js`.1060let nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0560-\u0588\u05d0-\u05ea\u05ef-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u0860-\u086a\u08a0-\u08b4\u08b6-\u08c7\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u09fc\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d04-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e86-\u0e8a\u0e8c-\u0ea3\u0ea5\u0ea7-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1878\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1c90-\u1cba\u1cbd-\u1cbf\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5\u1cf6\u1cfa\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312f\u3131-\u318e\u31a0-\u31bf\u31f0-\u31ff\u3400-\u4dbf\u4e00-\u9ffc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7bf\ua7c2-\ua7ca\ua7f5-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua8fe\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab69\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc"1061let nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u07fd\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d3-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u09fe\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0afa-\u0aff\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b55-\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c04\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d00-\u0d03\u0d3b\u0d3c\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d81-\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1abf\u1ac0\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf4\u1cf7-\u1cf9\u1dc0-\u1df9\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua82c\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua8ff-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f"1062 1063const nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]")1064const nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]")1065 1066nonASCIIidentifierStartChars = nonASCIIidentifierChars = null1067 1068// These are a run-length and offset encoded representation of the1069// >0xffff code points that are a valid part of identifiers. The1070// offset starts at 0x10000, and each pair of numbers represents an1071// offset to the next range, and then a size of the range. They were1072// generated by bin/generate-identifier-regex.js1073 1074// eslint-disable-next-line comma-spacing1075const astralIdentifierStartCodes = [0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,14,29,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,157,310,10,21,11,7,153,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,28,43,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,14,35,349,41,7,1,79,28,11,0,9,21,107,20,28,22,13,52,76,44,33,24,27,35,30,0,3,0,9,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,21,2,31,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,14,0,72,26,230,43,117,63,32,7,3,0,3,7,2,1,2,23,16,0,2,0,95,7,3,38,17,0,2,0,29,0,11,39,8,0,22,0,12,45,20,0,35,56,264,8,2,36,18,0,50,29,113,6,2,1,2,37,22,0,26,5,2,1,2,31,15,0,328,18,190,0,80,921,103,110,18,195,2749,1070,4050,582,8634,568,8,30,114,29,19,47,17,3,32,20,6,18,689,63,129,74,6,0,67,12,65,1,2,0,29,6135,9,1237,43,8,8952,286,50,2,18,3,9,395,2309,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,2357,44,11,6,17,0,370,43,1301,196,60,67,8,0,1205,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42717,35,4148,12,221,3,5761,15,7472,3104,541,1507,4938]1076 1077// eslint-disable-next-line comma-spacing1078const astralIdentifierCodes = [509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,574,3,9,9,370,1,154,10,176,2,54,14,32,9,16,3,46,10,54,9,7,2,37,13,2,9,6,1,45,0,13,2,49,13,9,3,2,11,83,11,7,0,161,11,6,9,7,3,56,1,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,5,0,82,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,243,14,166,9,71,5,2,1,3,3,2,0,2,1,13,9,120,6,3,6,4,0,29,9,41,6,2,3,9,0,10,10,47,15,406,7,2,7,17,9,57,21,2,13,123,5,4,0,2,1,2,6,2,0,9,9,49,4,2,1,2,4,9,9,330,3,19306,9,135,4,60,6,26,9,1014,0,2,54,8,3,82,0,12,1,19628,1,5319,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,262,6,10,9,419,13,1495,6,110,6,6,9,4759,9,787719,239]1079 1080// This has a complexity linear to the value of the code. The1081// assumption is that looking up astral identifier characters is1082// rare.1083function isInAstralSet(code, set) {1084 let pos = 0x100001085 for (let i = 0; i < set.length; i += 2) {1086 pos += set[i]1087 if (pos > code) return false1088 pos += set[i + 1]1089 if (pos >= code) return true1090 }1091}1092 1093// Test whether a given character code starts an identifier.1094 1095function isIdentifierStart(code, astral) {1096 if (code < 65) return code === 361097 if (code < 91) return true1098 if (code < 97) return code === 951099 if (code < 123) return true1100 if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code))1101 if (astral === false) return false1102 return isInAstralSet(code, astralIdentifierStartCodes)1103}1104 1105// Test whether a given character is part of an identifier.1106 1107function isIdentifierChar(code, astral) {1108 if (code < 48) return code === 361109 if (code < 58) return true1110 if (code < 65) return false1111 if (code < 91) return true1112 if (code < 97) return code === 951113 if (code < 123) return true1114 if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code))1115 if (astral === false) return false1116 return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes)1117}1118 1119function identifier () {1120 let ch = source.codePointAt(pos);1121 if (!isIdentifierStart(ch, true) || ch === '\\')1122 return false;1123 pos += codePointLen(ch);1124 while (ch = source.codePointAt(pos)) {1125 if (isIdentifierChar(ch, true)) {1126 pos += codePointLen(ch);1127 }1128 else if (ch === '\\') {1129 // no identifier escapes support for now1130 return false;1131 }1132 else {1133 break;1134 }1135 }1136 return true;1137}1138 1139function codePointLen (ch) {1140 if (ch < 0x10000) return 1;1141 return 2;1142}1143 1144function codePointAtLast (bPos) {1145 // Gives the UTF char for backtracking surrogates1146 const ch = source.charCodeAt(bPos);1147 if ((ch & 0xFC00) === 0xDC00)1148 return (((source.charCodeAt(bPos - 1) & 0x3FF) << 10) | (ch & 0x3FF)) + 0x10000;1149 return ch;1150}1151 1152function esmSyntaxErr (msg) {1153 return Object.assign(new Error(msg), { code: 'ERR_LEXER_ESM_SYNTAX' });1154}1155 1156function throwIfImportStatement () {1157 const startPos = pos;1158 pos += 6;1159 const ch = commentWhitespace();1160 switch (ch) {1161 // dynamic import1162 case 40/*(*/:1163 openTokenPosStack[openTokenDepth++] = startPos;1164 return;1165 // import.meta1166 case 46/*.*/:1167 throw esmSyntaxErr('Unexpected import.meta in CJS module.');1168 1169 default:1170 // no space after "import" -> not an import keyword1171 if (pos === startPos + 6)1172 break;1173 case 34/*"*/:1174 case 39/*'*/:1175 case 123/*{*/:1176 case 42/***/:1177 // import statement only permitted at base-level1178 if (openTokenDepth !== 0) {1179 pos--;1180 return;1181 }1182 // import statements are a syntax error in CommonJS1183 throw esmSyntaxErr('Unexpected import statement in CJS module.');1184 }1185}1186 1187function throwIfExportStatement () {1188 pos += 6;1189 const curPos = pos;1190 const ch = commentWhitespace();1191 if (pos === curPos && !isPunctuator(ch))1192 return;1193 throw esmSyntaxErr('Unexpected export statement in CJS module.');1194}1195 1196function commentWhitespace () {1197 let ch;1198 do {1199 ch = source.charCodeAt(pos);1200 if (ch === 47/*/*/) {