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rOACCT/node_modules/webpack/lib/library/AbstractLibraryPlugin.js
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AbstractLibraryPlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const RuntimeGlobals = require("../RuntimeGlobals");
const JavascriptModulesPlugin = require("../javascript/JavascriptModulesPlugin");
/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../../declarations/WebpackOptions").LibraryOptions} LibraryOptions */
/** @typedef {import("../../declarations/WebpackOptions").LibraryType} LibraryType */
/** @typedef {import("../Chunk")} Chunk */
/** @typedef {import("../Compilation")} Compilation */
/** @typedef {import("../Compilation").ChunkHashContext} ChunkHashContext */
/** @typedef {import("../Compiler")} Compiler */
/** @typedef {import("../Module")} Module */
/** @typedef {import("../javascript/JavascriptModulesPlugin").RenderContext} RenderContext */
/** @typedef {import("../util/Hash")} Hash */
/**
* @template T
* @typedef {Object} LibraryContext
* @property {Compilation} compilation
* @property {T} options
*/
/**
* @template T
*/
class AbstractLibraryPlugin {
/**
* @param {Object} options options
* @param {string} options.pluginName name of the plugin
* @param {LibraryType} options.type used library type
*/
constructor({ pluginName, type }) {
this._pluginName = pluginName;
this._type = type;
this._parseCache = new WeakMap();
}
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
const { _pluginName } = this;
compiler.hooks.thisCompilation.tap(_pluginName, compilation => {
compilation.hooks.finishModules.tap(_pluginName, () => {
for (const [
name,
{
dependencies: deps,
options: { library }
}
] of compilation.entries) {
const options = this._parseOptionsCached(
library !== undefined ? library : compilation.outputOptions.library
);
if (options !== false) {
const dep = deps[deps.length - 1];
if (dep) {
const module = compilation.moduleGraph.getModule(dep);
if (module) {
this.finishEntryModule(module, name, { options, compilation });
}
}
}
}
});
const getOptionsForChunk = chunk => {
if (compilation.chunkGraph.getNumberOfEntryModules(chunk) === 0)
return false;
const options = chunk.getEntryOptions();
const library = options && options.library;
return this._parseOptionsCached(
library !== undefined ? library : compilation.outputOptions.library
);
};
compilation.hooks.additionalChunkRuntimeRequirements.tap(
_pluginName,
(chunk, set) => {
const options = getOptionsForChunk(chunk);
if (options !== false) {
this.runtimeRequirements(chunk, set, { options, compilation });
}
}
);
const hooks = JavascriptModulesPlugin.getCompilationHooks(compilation);
hooks.render.tap(_pluginName, (source, renderContext) => {
const options = getOptionsForChunk(renderContext.chunk);
if (options === false) return source;
return this.render(source, renderContext, { options, compilation });
});
hooks.chunkHash.tap(_pluginName, (chunk, hash, context) => {
const options = getOptionsForChunk(chunk);
if (options === false) return;
this.chunkHash(chunk, hash, context, { options, compilation });
});
});
}
/**
* @param {LibraryOptions=} library normalized library option
* @returns {T | false} preprocess as needed by overriding
*/
_parseOptionsCached(library) {
if (!library) return false;
if (library.type !== this._type) return false;
const cacheEntry = this._parseCache.get(library);
if (cacheEntry !== undefined) return cacheEntry;
const result = this.parseOptions(library);
this._parseCache.set(library, result);
return result;
}
/* istanbul ignore next */
/**
* @abstract
* @param {LibraryOptions} library normalized library option
* @returns {T | false} preprocess as needed by overriding
*/
parseOptions(library) {
const AbstractMethodError = require("../AbstractMethodError");
throw new AbstractMethodError();
}
/**
* @param {Module} module the exporting entry module
* @param {string} entryName the name of the entrypoint
* @param {LibraryContext<T>} libraryContext context
* @returns {void}
*/
finishEntryModule(module, entryName, libraryContext) {}
/**
* @param {Chunk} chunk the chunk
* @param {Set<string>} set runtime requirements
* @param {LibraryContext<T>} libraryContext context
* @returns {void}
*/
runtimeRequirements(chunk, set, libraryContext) {
set.add(RuntimeGlobals.returnExportsFromRuntime);
}
/**
* @param {Source} source source
* @param {RenderContext} renderContext render context
* @param {LibraryContext<T>} libraryContext context
* @returns {Source} source with library export
*/
render(source, renderContext, libraryContext) {
return source;
}
/**
* @param {Chunk} chunk the chunk
* @param {Hash} hash hash
* @param {ChunkHashContext} chunkHashContext chunk hash context
* @param {LibraryContext<T>} libraryContext context
* @returns {void}
*/
chunkHash(chunk, hash, chunkHashContext, libraryContext) {
const options = this._parseOptionsCached(
libraryContext.compilation.outputOptions.library
);
hash.update(this._pluginName);
hash.update(JSON.stringify(options));
}
}
module.exports = AbstractLibraryPlugin;
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