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265ea1e74e
It turns out that even with startup snapshots, there is a non-trivial overhead for loading internal modules. This patch makes the loading of the non-essential modules lazy again. Caveat: we have to make some of the globals lazily-loaded too, so the WPT runner is updated to test what the state of the global scope is after the globals are accessed (and replaced with the loaded value). PR-URL: https://github.com/nodejs/node/pull/45659 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Daeyeon Jeong <daeyeon.dev@gmail.com> Reviewed-By: Jacob Smith <jacob@frende.me> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Minwoo Jung <nodecorelab@gmail.com> Reviewed-By: Tierney Cyren <hello@bnb.im>
45 lines
1.4 KiB
JavaScript
45 lines
1.4 KiB
JavaScript
'use strict';
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const { kImplicitAssertType } = require('internal/modules/esm/assert');
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const {
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ObjectCreate,
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SafeMap,
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} = primordials;
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let debug = require('internal/util/debuglog').debuglog('esm', (fn) => {
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debug = fn;
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});
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const { ERR_INVALID_ARG_TYPE } = require('internal/errors').codes;
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const { validateString } = require('internal/validators');
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// Tracks the state of the loader-level module cache
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class ModuleMap extends SafeMap {
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constructor(i) { super(i); } // eslint-disable-line no-useless-constructor
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get(url, type = kImplicitAssertType) {
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validateString(url, 'url');
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validateString(type, 'type');
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return super.get(url)?.[type];
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}
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set(url, type = kImplicitAssertType, job) {
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validateString(url, 'url');
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validateString(type, 'type');
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const ModuleJob = require('internal/modules/esm/module_job');
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if (job instanceof ModuleJob !== true &&
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typeof job !== 'function') {
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throw new ERR_INVALID_ARG_TYPE('job', 'ModuleJob', job);
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}
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debug(`Storing ${url} (${
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type === kImplicitAssertType ? 'implicit type' : type
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}) in ModuleMap`);
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const cachedJobsForUrl = super.get(url) ?? ObjectCreate(null);
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cachedJobsForUrl[type] = job;
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return super.set(url, cachedJobsForUrl);
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}
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has(url, type = kImplicitAssertType) {
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validateString(url, 'url');
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validateString(type, 'type');
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return super.get(url)?.[type] !== undefined;
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}
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}
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module.exports = ModuleMap;
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