webpack/lib/ChunkTemplate.js

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/

"use strict";

const util = require("util");
const memoize = require("./util/memoize");

/** @typedef {import("tapable").Tap} Tap */
/** @typedef {import("../declarations/WebpackOptions").Output} OutputOptions */
/** @typedef {import("./Chunk")} Chunk */
/** @typedef {import("./Compilation")} Compilation */
/** @typedef {import("./Compilation").ChunkHashContext} ChunkHashContext */
/** @typedef {import("./Compilation").Hash} Hash */
/** @typedef {import("./Compilation").RenderManifestEntry} RenderManifestEntry */
/** @typedef {import("./Compilation").RenderManifestOptions} RenderManifestOptions */
/** @typedef {import("./Compilation").Source} Source */
/** @typedef {import("./ModuleTemplate")} ModuleTemplate */
/** @typedef {import("./javascript/JavascriptModulesPlugin").RenderContext} RenderContext */
/**
 * @template T
 * @typedef {import("tapable").IfSet<T>} IfSet
 */

const getJavascriptModulesPlugin = memoize(() =>
	require("./javascript/JavascriptModulesPlugin")
);

// TODO webpack 6 remove this class
class ChunkTemplate {
	/**
	 * @param {OutputOptions} outputOptions output options
	 * @param {Compilation} compilation the compilation
	 */
	constructor(outputOptions, compilation) {
		this._outputOptions = outputOptions || {};
		this.hooks = Object.freeze({
			renderManifest: {
				tap: util.deprecate(
					/**
					 * @template AdditionalOptions
					 * @param {string | Tap & IfSet<AdditionalOptions>} options options
					 * @param {(renderManifestEntries: RenderManifestEntry[], renderManifestOptions: RenderManifestOptions) => RenderManifestEntry[]} fn function
					 */
					(options, fn) => {
						compilation.hooks.renderManifest.tap(
							options,
							(entries, options) => {
								if (options.chunk.hasRuntime()) return entries;
								return fn(entries, options);
							}
						);
					},
					"ChunkTemplate.hooks.renderManifest is deprecated (use Compilation.hooks.renderManifest instead)",
					"DEP_WEBPACK_CHUNK_TEMPLATE_RENDER_MANIFEST"
				)
			},
			modules: {
				tap: util.deprecate(
					/**
					 * @template AdditionalOptions
					 * @param {string | Tap & IfSet<AdditionalOptions>} options options
					 * @param {(source: Source, moduleTemplate: ModuleTemplate, renderContext: RenderContext) => Source} fn function
					 */
					(options, fn) => {
						getJavascriptModulesPlugin()
							.getCompilationHooks(compilation)
							.renderChunk.tap(options, (source, renderContext) =>
								fn(
									source,
									compilation.moduleTemplates.javascript,
									renderContext
								)
							);
					},
					"ChunkTemplate.hooks.modules is deprecated (use JavascriptModulesPlugin.getCompilationHooks().renderChunk instead)",
					"DEP_WEBPACK_CHUNK_TEMPLATE_MODULES"
				)
			},
			render: {
				tap: util.deprecate(
					/**
					 * @template AdditionalOptions
					 * @param {string | Tap & IfSet<AdditionalOptions>} options options
					 * @param {(source: Source, moduleTemplate: ModuleTemplate, renderContext: RenderContext) => Source} fn function
					 */
					(options, fn) => {
						getJavascriptModulesPlugin()
							.getCompilationHooks(compilation)
							.renderChunk.tap(options, (source, renderContext) =>
								fn(
									source,
									compilation.moduleTemplates.javascript,
									renderContext
								)
							);
					},
					"ChunkTemplate.hooks.render is deprecated (use JavascriptModulesPlugin.getCompilationHooks().renderChunk instead)",
					"DEP_WEBPACK_CHUNK_TEMPLATE_RENDER"
				)
			},
			renderWithEntry: {
				tap: util.deprecate(
					/**
					 * @template AdditionalOptions
					 * @param {string | Tap & IfSet<AdditionalOptions>} options options
					 * @param {(source: Source, chunk: Chunk) => Source} fn function
					 */
					(options, fn) => {
						getJavascriptModulesPlugin()
							.getCompilationHooks(compilation)
							.render.tap(options, (source, renderContext) => {
								if (
									renderContext.chunkGraph.getNumberOfEntryModules(
										renderContext.chunk
									) === 0 ||
									renderContext.chunk.hasRuntime()
								) {
									return source;
								}
								return fn(source, renderContext.chunk);
							});
					},
					"ChunkTemplate.hooks.renderWithEntry is deprecated (use JavascriptModulesPlugin.getCompilationHooks().render instead)",
					"DEP_WEBPACK_CHUNK_TEMPLATE_RENDER_WITH_ENTRY"
				)
			},
			hash: {
				tap: util.deprecate(
					/**
					 * @template AdditionalOptions
					 * @param {string | Tap & IfSet<AdditionalOptions>} options options
					 * @param {(hash: Hash) => void} fn function
					 */
					(options, fn) => {
						compilation.hooks.fullHash.tap(options, fn);
					},
					"ChunkTemplate.hooks.hash is deprecated (use Compilation.hooks.fullHash instead)",
					"DEP_WEBPACK_CHUNK_TEMPLATE_HASH"
				)
			},
			hashForChunk: {
				tap: util.deprecate(
					/**
					 * @template AdditionalOptions
					 * @param {string | Tap & IfSet<AdditionalOptions>} options options
					 * @param {(hash: Hash, chunk: Chunk, chunkHashContext: ChunkHashContext) => void} fn function
					 */
					(options, fn) => {
						getJavascriptModulesPlugin()
							.getCompilationHooks(compilation)
							.chunkHash.tap(options, (chunk, hash, context) => {
								if (chunk.hasRuntime()) return;
								fn(hash, chunk, context);
							});
					},
					"ChunkTemplate.hooks.hashForChunk is deprecated (use JavascriptModulesPlugin.getCompilationHooks().chunkHash instead)",
					"DEP_WEBPACK_CHUNK_TEMPLATE_HASH_FOR_CHUNK"
				)
			}
		});
	}
}

Object.defineProperty(ChunkTemplate.prototype, "outputOptions", {
	get: util.deprecate(
		/**
		 * @this {ChunkTemplate}
		 * @returns {OutputOptions} output options
		 */
		function () {
			return this._outputOptions;
		},
		"ChunkTemplate.outputOptions is deprecated (use Compilation.outputOptions instead)",
		"DEP_WEBPACK_CHUNK_TEMPLATE_OUTPUT_OPTIONS"
	)
});

module.exports = ChunkTemplate;