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esm: fix module.exports export on CJS modules

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PR-URL: https://github.com/nodejs/node/pull/57366
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit is contained in:
Guy Bedford committed 2025-03-09 13:51:04 -07:00
1 parent 599ec77679
commit fbe37d501e
2 files changed
+16 -11
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lib/internal/modules/esm/translators.js
+6 -2
View File
@@ -188,10 +188,13 @@ function createCJSModuleWrap(url, source, isMain, format, loadCJS = loadCJSModul
const { exportNames, module } = cjsPreparseModuleExports(filename, source, format);
cjsCache.set(url, module);
const wrapperNames = [...exportNames, 'module.exports'];
const wrapperNames = [...exportNames];
if (!exportNames.has('default')) {
ArrayPrototypePush(wrapperNames, 'default');
}
if (!exportNames.has('module.exports')) {
ArrayPrototypePush(wrapperNames, 'module.exports');
}
if (isMain) {
setOwnProperty(process, 'mainModule', module);
@@ -212,7 +215,8 @@ function createCJSModuleWrap(url, source, isMain, format, loadCJS = loadCJSModul
({ exports } = module);
}
for (const exportName of exportNames) {
if (!ObjectPrototypeHasOwnProperty(exports, exportName) || exportName === 'default') {
if (exportName === 'default' || exportName === 'module.exports' ||
!ObjectPrototypeHasOwnProperty(exports, exportName)) {
continue;
}
// We might trigger a getter -> dont fail.
test/fixtures/es-modules/exports-cases.js
Vendored
+10 -9
View File
@@ -1,9 +1,10 @@
if (global.maybe)
module.exports = require('../is-object');
exports['invalid identifier'] = 'yes';
module.exports['?invalid'] = 'yes';
module.exports['π'] = 'yes';
exports['\u{D83C}'] = 'no';
exports['\u{D83C}\u{DF10}'] = 'yes';
exports.package = 10; // reserved word
Object.defineProperty(exports, 'z', { value: 'yes' });
if (global.maybe)
module.exports = require('../is-object');
exports['invalid identifier'] = 'yes';
module.exports['?invalid'] = 'yes';
module.exports['π'] = 'yes';
exports['\u{D83C}'] = 'no';
exports['\u{D83C}\u{DF10}'] = 'yes';
exports.package = 10; // reserved word
Object.defineProperty(exports, 'z', { value: 'yes' });
exports['module.exports'] = 5;