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96 lines
2.3 KiB
96 lines
2.3 KiB
4 years ago
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const DelegatedModule = require("./DelegatedModule");
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// options.source
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// options.type
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// options.context
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// options.scope
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// options.content
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class DelegatedModuleFactoryPlugin {
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constructor(options) {
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this.options = options;
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options.type = options.type || "require";
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options.extensions = options.extensions || [
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"",
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".wasm",
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".mjs",
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".js",
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".json"
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];
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}
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apply(normalModuleFactory) {
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const scope = this.options.scope;
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if (scope) {
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normalModuleFactory.hooks.factory.tap(
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"DelegatedModuleFactoryPlugin",
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factory => (data, callback) => {
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const dependency = data.dependencies[0];
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const request = dependency.request;
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if (request && request.indexOf(scope + "/") === 0) {
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const innerRequest = "." + request.substr(scope.length);
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let resolved;
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if (innerRequest in this.options.content) {
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resolved = this.options.content[innerRequest];
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return callback(
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null,
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new DelegatedModule(
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this.options.source,
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resolved,
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this.options.type,
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innerRequest,
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request
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)
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);
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}
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for (let i = 0; i < this.options.extensions.length; i++) {
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const extension = this.options.extensions[i];
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const requestPlusExt = innerRequest + extension;
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if (requestPlusExt in this.options.content) {
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resolved = this.options.content[requestPlusExt];
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return callback(
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null,
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new DelegatedModule(
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this.options.source,
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resolved,
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this.options.type,
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requestPlusExt,
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request + extension
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)
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);
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}
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}
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}
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return factory(data, callback);
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}
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);
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} else {
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normalModuleFactory.hooks.module.tap(
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"DelegatedModuleFactoryPlugin",
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module => {
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if (module.libIdent) {
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const request = module.libIdent(this.options);
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if (request && request in this.options.content) {
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const resolved = this.options.content[request];
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return new DelegatedModule(
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this.options.source,
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resolved,
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this.options.type,
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request,
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module
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);
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}
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}
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return module;
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}
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);
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}
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}
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}
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module.exports = DelegatedModuleFactoryPlugin;
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