Method apply

lib/library/AbstractLibraryPlugin.js:68–227

* Applies the plugin by registering its hooks on the compiler. * @param {Compiler} compiler the compiler instance * @returns {void}

(compiler)

	 * @returns {void}
	 */
	apply(compiler) {
		const { _pluginName } = this;
		compiler.hooks.thisCompilation.tap(_pluginName, (compilation) => {
			compilation.hooks.finishModules.tap(
				{ name: _pluginName, stage: 10 },
				() => {
					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,
										chunkGraph: compilation.chunkGraph
									});
								}
							}
						}
					}
				}
			);

			/**
			 * Gets options for chunk.
			 * @param {Chunk} chunk chunk
			 * @returns {T | false} options for the chunk
			 */
			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
				);
			};

			if (
				this.render !== AbstractLibraryPlugin.prototype.render ||
				this.runtimeRequirements !==
					AbstractLibraryPlugin.prototype.runtimeRequirements
			) {
				compilation.hooks.additionalChunkRuntimeRequirements.tap(
					_pluginName,