Method apply

lib/ids/ChunkModuleIdRangePlugin.js:44–93

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

(compiler)

	 * @returns {void}
	 */
	apply(compiler) {
		compiler.hooks.compilation.tap(PLUGIN_NAME, (compilation) => {
			const moduleGraph = compilation.moduleGraph;
			compilation.hooks.moduleIds.tap(PLUGIN_NAME, (modules) => {
				const chunkGraph = compilation.chunkGraph;
				const chunk = find(
					compilation.chunks,
					(chunk) => chunk.name === this.options.name
				);
				if (!chunk) {
					throw new Error(
						`${PLUGIN_NAME}: Chunk with name '${this.options.name}"' was not found`
					);
				}

				/** @type {Module[]} */
				let chunkModules;
				if (this.options.order) {
					/** @type {ModuleComparator} */
					let cmpFn;
					switch (this.options.order) {
						case "index":
						case "preOrderIndex":
							cmpFn = compareModulesByPreOrderIndexOrIdentifier(moduleGraph);
							break;
						case "index2":
						case "postOrderIndex":
							cmpFn = compareModulesByPostOrderIndexOrIdentifier(moduleGraph);
							break;
						default:
							throw new Error(`${PLUGIN_NAME}: unexpected value of order`);
					}
					chunkModules = chunkGraph.getOrderedChunkModules(chunk, cmpFn);
				} else {
					chunkModules = [...modules]
						.filter((m) => chunkGraph.isModuleInChunk(m, chunk))
						.sort(compareModulesByPreOrderIndexOrIdentifier(moduleGraph));
				}

				let currentId = this.options.start || 0;
				for (let i = 0; i < chunkModules.length; i++) {
					const m = chunkModules[i];
					if (m.needId && chunkGraph.getModuleId(m) === null) {
						chunkGraph.setModuleId(m, currentId++);
					}
					if (this.options.end && currentId > this.options.end) break;
				}
			});
		});
	}
}

module.exports = ChunkModuleIdRangePlugin;