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c0c598d753
Unifies the CJS and ESM source map cache map with SourceMapCacheMap and allows the CJS cache entries to be queried more efficiently with a source url without iteration on an IterableWeakMap. Add a test to verify that the CJS source map cache entry can be reclaimed. PR-URL: https://github.com/nodejs/node/pull/51711 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
36 lines
1.3 KiB
JavaScript
36 lines
1.3 KiB
JavaScript
// Flags: --enable-source-maps --max-old-space-size=10 --expose-gc
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/**
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* This test verifies that the source map of a CJS module is cleared after the
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* CJS module is reclaimed by GC.
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*/
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'use strict';
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const common = require('../common');
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const assert = require('node:assert');
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const { findSourceMap } = require('node:module');
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const moduleId = require.resolve('../fixtures/source-map/no-throw.js');
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const moduleIdRepeat = require.resolve('../fixtures/source-map/no-throw2.js');
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function run(moduleId) {
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require(moduleId);
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delete require.cache[moduleId];
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const idx = module.children.findIndex((child) => child.id === moduleId);
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assert.ok(idx >= 0);
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module.children.splice(idx, 1);
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// Verify that the source map is still available
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assert.notStrictEqual(findSourceMap(moduleId), undefined);
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}
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// Run the test in a function scope so that every variable can be reclaimed by GC.
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run(moduleId);
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// Run until the source map is cleared by GC, or fail the test after determined iterations.
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common.gcUntil('SourceMap of deleted CJS module is cleared', () => {
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// Repetitively load a second module with --max-old-space-size=10 to make GC more aggressive.
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run(moduleIdRepeat);
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// Verify that the source map is cleared.
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return findSourceMap(moduleId) == null;
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});
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