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lib: fix memory leak, when module require error occurs #32837

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lib: fix memory leak, when module require error occurs #32837

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7 changes: 7 additions & 0 deletions lib/internal/modules/cjs/loader.js
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Expand Up @@ -928,6 +928,13 @@ Module._load = function(request, parent, isMain) {
delete Module._cache[filename];
if (parent !== undefined) {
delete relativeResolveCache[relResolveCacheIdentifier];
const children = parent && parent.children;
if (ArrayIsArray(children)) {
const index = children.indexOf(module);
if (index !== -1) {
children.splice(index, 1);
}
}
}
} else if (module.exports &&
ObjectGetPrototypeOf(module.exports) ===
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3 changes: 0 additions & 3 deletions test/sequential/test-module-loading.js
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Expand Up @@ -302,17 +302,14 @@ assert.throws(
}
},
'fixtures/path.js': {},
'fixtures/throws_error.js': {},
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Unit test for module loading, verify module.children contains all the different modules that we've required, but should not contain modules that failed to load

'fixtures/registerExt.test': {},
'fixtures/registerExt.hello.world': {},
'fixtures/registerExt2.test': {},
'fixtures/module-load-order/file1': {},
'fixtures/module-load-order/file2.js': {},
'fixtures/module-load-order/file3.node': {},
'fixtures/module-load-order/file4.reg': {},
'fixtures/module-load-order/file5.reg2': {},
'fixtures/module-load-order/file6/index.js': {},
'fixtures/module-load-order/file7/index.node': {},
'fixtures/module-load-order/file8/index.reg': {},
'fixtures/module-load-order/file9/index.reg2': {},
'fixtures/module-require/parent/index.js': {
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