webpack/lib/ChunkTemplate.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support 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("../declarations/WebpackOptions").Output} OutputOptions */
/** @typedef {import("./Compilation")} Compilation */

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(
					(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(
					(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(
					(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(
					(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(
					(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(
					(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;