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DllModule.js
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Mon, Nov 18, 12:25

DllModule.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const { RawSource } = require("webpack-sources");
const Module = require("./Module");
const RuntimeGlobals = require("./RuntimeGlobals");
const makeSerializable = require("./util/makeSerializable");
/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../declarations/WebpackOptions").WebpackOptionsNormalized} WebpackOptions */
/** @typedef {import("./ChunkGraph")} ChunkGraph */
/** @typedef {import("./Compilation")} Compilation */
/** @typedef {import("./Dependency").UpdateHashContext} UpdateHashContext */
/** @typedef {import("./DependencyTemplates")} DependencyTemplates */
/** @typedef {import("./Module").CodeGenerationContext} CodeGenerationContext */
/** @typedef {import("./Module").CodeGenerationResult} CodeGenerationResult */
/** @typedef {import("./Module").NeedBuildContext} NeedBuildContext */
/** @typedef {import("./Module").SourceContext} SourceContext */
/** @typedef {import("./RequestShortener")} RequestShortener */
/** @typedef {import("./ResolverFactory").ResolverWithOptions} ResolverWithOptions */
/** @typedef {import("./RuntimeTemplate")} RuntimeTemplate */
/** @typedef {import("./WebpackError")} WebpackError */
/** @typedef {import("./util/Hash")} Hash */
/** @typedef {import("./util/fs").InputFileSystem} InputFileSystem */
const TYPES = new Set(["javascript"]);
const RUNTIME_REQUIREMENTS = new Set([
RuntimeGlobals.require,
RuntimeGlobals.module
]);
class DllModule extends Module {
constructor(context, dependencies, name) {
super("javascript/dynamic", context);
// Info from Factory
this.dependencies = dependencies;
this.name = name;
}
/**
* @returns {Set<string>} types available (do not mutate)
*/
getSourceTypes() {
return TYPES;
}
/**
* @returns {string} a unique identifier of the module
*/
identifier() {
return `dll ${this.name}`;
}
/**
* @param {RequestShortener} requestShortener the request shortener
* @returns {string} a user readable identifier of the module
*/
readableIdentifier(requestShortener) {
return `dll ${this.name}`;
}
/**
* @param {WebpackOptions} options webpack options
* @param {Compilation} compilation the compilation
* @param {ResolverWithOptions} resolver the resolver
* @param {InputFileSystem} fs the file system
* @param {function(WebpackError=): void} callback callback function
* @returns {void}
*/
build(options, compilation, resolver, fs, callback) {
this.buildMeta = {};
this.buildInfo = {};
return callback();
}
/**
* @param {CodeGenerationContext} context context for code generation
* @returns {CodeGenerationResult} result
*/
codeGeneration(context) {
const sources = new Map();
sources.set(
"javascript",
new RawSource("module.exports = __webpack_require__;")
);
return {
sources,
runtimeRequirements: RUNTIME_REQUIREMENTS
};
}
/**
* @param {NeedBuildContext} context context info
* @param {function(WebpackError=, boolean=): void} callback callback function, returns true, if the module needs a rebuild
* @returns {void}
*/
needBuild(context, callback) {
return callback(null, !this.buildMeta);
}
/**
* @param {string=} type the source type for which the size should be estimated
* @returns {number} the estimated size of the module (must be non-zero)
*/
size(type) {
return 12;
}
/**
* @param {Hash} hash the hash used to track dependencies
* @param {UpdateHashContext} context context
* @returns {void}
*/
updateHash(hash, context) {
hash.update("dll module");
hash.update(this.name || "");
super.updateHash(hash, context);
}
serialize(context) {
context.write(this.name);
super.serialize(context);
}
deserialize(context) {
this.name = context.read();
super.deserialize(context);
}
/**
* Assuming this module is in the cache. Update the (cached) module with
* the fresh module from the factory. Usually updates internal references
* and properties.
* @param {Module} module fresh module
* @returns {void}
*/
updateCacheModule(module) {
super.updateCacheModule(module);
this.dependencies = module.dependencies;
}
}
makeSerializable(DllModule, "webpack/lib/DllModule");
module.exports = DllModule;

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