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deps: update to cjs-module-lexer@0.4.3 · nodejs/node@d7f0e3e · GitHub

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guybedford
authored and
MylesBorins
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deps: update to cjs-module-lexer@0.4.3
PR-URL: #35745 Reviewed-By: Jan Krems <jan.krems@gmail.com> Reviewed-By: Myles Borins <myles.borins@gmail.com> Reviewed-By: Ujjwal Sharma <ryzokuken@disroot.org> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
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6 files changed

Lines changed: 84 additions & 16 deletions

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‎deps/cjs-module-lexer/CHANGELOG.md‎

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@@ -0,0 +1,4 @@
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0.4.3
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- Support for Babel 7.12 reexports (https://github.com/guybedford/cjs-module-lexer/pull/16)
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- Support module.exports = { ...require('x') } reexports (https://github.com/guybedford/cjs-module-lexer/pull/18)
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- "if" keyword space parsing in exports matching (https://github.com/guybedford/cjs-module-lexer/pull/17)

‎deps/cjs-module-lexer/dist/lexer.js‎

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‎deps/cjs-module-lexer/dist/lexer.mjs‎

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‎deps/cjs-module-lexer/lexer.js‎

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Original file line numberDiff line numberDiff line change
@@ -10,7 +10,6 @@ let openTokenDepth,
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nextBraceIsClass,
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starExportMap,
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lastStarExportSpecifier,
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lastExportsAssignSpecifier,
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_exports,
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reexports;
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@@ -26,7 +25,6 @@ function resetState () {
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nextBraceIsClass = false;
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starExportMap = Object.create(null);
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lastStarExportSpecifier = null;
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lastExportsAssignSpecifier = null;
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_exports = new Set();
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reexports = new Set();
@@ -49,8 +47,6 @@ module.exports = function parseCJS (source, name = '@') {
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e.loc = pos;
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throw e;
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}
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if (lastExportsAssignSpecifier)
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reexports.add(lastExportsAssignSpecifier);
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const result = { exports: [..._exports], reexports: [...reexports] };
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resetState();
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return result;
@@ -330,8 +326,8 @@ function tryParseObjectDefineOrKeys (keys) {
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if (ch !== 123/*{*/) break;
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pos++;
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ch = commentWhitespace();
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if (ch !== 105/*i*/ || !source.startsWith('f ', pos + 1)) break;
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pos += 3;
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if (ch !== 105/*i*/ || source.charCodeAt(pos + 1) !== 102/*f*/) break;
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pos += 2;
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ch = commentWhitespace();
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if (ch !== 40/*(*/) break;
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pos++;
@@ -398,6 +394,61 @@ function tryParseObjectDefineOrKeys (keys) {
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}
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else break;
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// `if (` IDENTIFIER$2 `in` EXPORTS_IDENTIFIER `&&` EXPORTS_IDENTIFIER `[` IDENTIFIER$2 `] ===` IDENTIFIER$1 `[` IDENTIFIER$2 `]) return` `;`?
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if (ch === 105/*i*/ && source.charCodeAt(pos + 1) === 102/*f*/) {
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pos += 2;
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ch = commentWhitespace();
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if (ch !== 40/*(*/) break;
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pos++;
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ch = commentWhitespace();
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if (!source.startsWith(it_id, pos)) break;
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pos += it_id.length;
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ch = commentWhitespace();
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if (ch !== 105/*i*/ || !source.startsWith('n ', pos + 1)) break;
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pos += 3;
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ch = commentWhitespace();
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if (!readExportsOrModuleDotExports(ch)) break;
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ch = commentWhitespace();
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if (ch !== 38/*&*/ || source.charCodeAt(pos + 1) !== 38/*&*/) break;
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pos += 2;
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ch = commentWhitespace();
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if (!readExportsOrModuleDotExports(ch)) break;
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ch = commentWhitespace();
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if (ch !== 91/*[*/) break;
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pos++;
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ch = commentWhitespace();
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if (!source.startsWith(it_id, pos)) break;
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pos += it_id.length;
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ch = commentWhitespace();
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if (ch !== 93/*]*/) break;
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pos++;
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ch = commentWhitespace();
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if (ch !== 61/*=*/ || !source.startsWith('==', pos + 1)) break;
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pos += 3;
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ch = commentWhitespace();
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if (!source.startsWith(id, pos)) break;
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pos += id.length;
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ch = commentWhitespace();
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if (ch !== 91/*[*/) break;
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pos++;
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ch = commentWhitespace();
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if (!source.startsWith(it_id, pos)) break;
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pos += it_id.length;
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ch = commentWhitespace();
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if (ch !== 93/*]*/) break;
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pos++;
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ch = commentWhitespace();
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if (ch !== 41/*)*/) break;
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pos++;
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ch = commentWhitespace();
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if (ch !== 114/*r*/ || !source.startsWith('eturn', pos + 1)) break;
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pos += 6;
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ch = commentWhitespace();
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if (ch === 59/*;*/)
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pos++;
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ch = commentWhitespace();
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}
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// EXPORTS_IDENTIFIER `[` IDENTIFIER$2 `] =` IDENTIFIER$1 `[` IDENTIFIER$2 `]`
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if (readExportsOrModuleDotExports(ch)) {
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ch = commentWhitespace();
@@ -622,6 +673,8 @@ function tryParseExportsDotAssign (assign) {
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// module.exports =
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case 61/*=*/: {
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if (assign) {
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if (reexports.size)
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reexports = new Set();
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pos++;
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ch = commentWhitespace();
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// { ... }
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function tryParseRequire (requireType) {
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// require('...')
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const revertPos = pos;
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if (source.startsWith('equire', pos + 1)) {
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pos += 7;
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const revertPos = pos - 1;
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let ch = commentWhitespace();
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if (ch === 40/*(*/) {
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pos++;
@@ -656,7 +709,7 @@ function tryParseRequire (requireType) {
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if (ch === 41/*)*/) {
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switch (requireType) {
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case ExportAssign:
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lastExportsAssignSpecifier = source.slice(reexportStart, reexportEnd);
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reexports.add(source.slice(reexportStart, reexportEnd));
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return true;
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case ExportStar:
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reexports.add(source.slice(reexportStart, reexportEnd));
@@ -674,7 +727,7 @@ function tryParseRequire (requireType) {
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if (ch === 41/*)*/) {
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switch (requireType) {
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case ExportAssign:
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lastExportsAssignSpecifier = source.slice(reexportStart, reexportEnd);
730+
reexports.add(source.slice(reexportStart, reexportEnd));
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return true;
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case ExportStar:
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reexports.add(source.slice(reexportStart, reexportEnd));
@@ -711,6 +764,17 @@ function tryParseLiteralExports () {
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}
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addExport(source.slice(startPos, endPos));
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}
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else if (ch === 46/*.*/ && source.startsWith('..', pos + 1)) {
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pos += 3;
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if (source.charCodeAt(pos) === 114/*r*/ && tryParseRequire(ExportAssign)) {
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pos++;
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}
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else if (!identifier()) {
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pos = revertPos;
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return;
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}
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ch = commentWhitespace();
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}
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else if (ch === 39/*'*/ || ch === 34/*"*/) {
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const startPos = ++pos;
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if (identifier() && source.charCodeAt(pos) === ch) {

‎deps/cjs-module-lexer/package.json‎

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@@ -1,6 +1,6 @@
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{
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"name": "cjs-module-lexer",
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"version": "0.4.2",
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"version": "0.4.3",
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"description": "Lexes CommonJS modules, returning their named exports metadata",
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"main": "lexer.js",
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"exports": {
@@ -14,8 +14,8 @@
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"bench": "node --expose-gc bench/index.mjs",
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"build": "node build.js && babel dist/lexer.mjs | terser -o dist/lexer.js",
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"build-wasm": "make lib/lexer.wasm && node build.js",
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"prepublishOnly": "make optimize && npm run build",
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"footprint": "make optimize && npm run build && cat dist/lexer.js | gzip -9f | wc -c"
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"prepublishOnly": "make && npm run build",
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"footprint": "npm run build && cat dist/lexer.js | gzip -9f | wc -c"
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},
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"author": "Guy Bedford",
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"license": "MIT",

‎doc/api/esm.md‎

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@@ -1296,7 +1296,7 @@ success!
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[`Uint8Array`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array
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[dynamic instantiate hook]: #esm_code_dynamicinstantiate_code_hook
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[`util.TextDecoder`]: util.md#util_class_util_textdecoder
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[cjs-module-lexer]: https://github.com/guybedford/cjs-module-lexer/tree/0.4.2
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[cjs-module-lexer]: https://github.com/guybedford/cjs-module-lexer/tree/0.4.3
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[special scheme]: https://url.spec.whatwg.org/#special-scheme
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[the official standard format]: https://tc39.github.io/ecma262/#sec-modules
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[transpiler loader example]: #esm_transpiler_loader

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