mirror of https://github.com/webpack/webpack.git
				
				
				
			
		
			
				
	
	
		
			111 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			111 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
/*
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	MIT License http://www.opensource.org/licenses/mit-license.php
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	Author Tobias Koppers @sokra
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*/
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"use strict";
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const { ConcatSource } = require("webpack-sources");
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const ExternalModule = require("./ExternalModule");
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const Template = require("./Template");
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/** @typedef {import("./Compilation")} Compilation */
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/**
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 * @typedef {Object} AmdMainTemplatePluginOptions
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 * @param {string=} name the library name
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 * @property {boolean=} requireAsWrapper
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 */
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class AmdMainTemplatePlugin {
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	/**
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	 * @param {AmdMainTemplatePluginOptions} options the plugin options
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	 */
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	constructor(options) {
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		if (!options || typeof options === "string") {
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			this.name = options;
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			this.requireAsWrapper = false;
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		} else {
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			this.name = options.name;
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			this.requireAsWrapper = options.requireAsWrapper;
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		}
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	}
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	/**
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	 * @param {Compilation} compilation the compilation instance
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	 * @returns {void}
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	 */
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	apply(compilation) {
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		const { mainTemplate, chunkTemplate } = compilation;
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		const onRenderWithEntry = (source, chunk, hash) => {
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			const chunkGraph = compilation.chunkGraph;
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			const modules = chunkGraph
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				.getChunkModules(chunk)
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				.filter(m => m instanceof ExternalModule);
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			const externals = /** @type {ExternalModule[]} */ (modules);
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			const externalsDepsArray = JSON.stringify(
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				externals.map(
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					m =>
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						typeof m.request === "object" && !Array.isArray(m.request)
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							? m.request.amd
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							: m.request
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				)
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			);
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			const externalsArguments = externals
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				.map(
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					m =>
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						`__WEBPACK_EXTERNAL_MODULE_${Template.toIdentifier(
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							`${chunkGraph.getModuleId(m)}`
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						)}__`
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				)
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				.join(", ");
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			if (this.requireAsWrapper) {
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				return new ConcatSource(
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					`require(${externalsDepsArray}, function(${externalsArguments}) { return `,
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					source,
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					"});"
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				);
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			} else if (this.name) {
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				const name = mainTemplate.getAssetPath(this.name, {
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					hash,
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					chunk
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				});
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				return new ConcatSource(
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					`define(${JSON.stringify(
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						name
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					)}, ${externalsDepsArray}, function(${externalsArguments}) { return `,
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					source,
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					"});"
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				);
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			} else if (externalsArguments) {
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				return new ConcatSource(
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					`define(${externalsDepsArray}, function(${externalsArguments}) { return `,
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					source,
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					"});"
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				);
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			} else {
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				return new ConcatSource("define(function() { return ", source, "});");
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			}
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		};
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		for (const template of [mainTemplate, chunkTemplate]) {
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			template.hooks.renderWithEntry.tap(
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				"AmdMainTemplatePlugin",
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				onRenderWithEntry
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			);
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		}
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		mainTemplate.hooks.hash.tap("AmdMainTemplatePlugin", hash => {
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			hash.update("exports amd");
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			if (this.name) {
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				hash.update(this.name);
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			}
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		});
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	}
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}
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module.exports = AmdMainTemplatePlugin;
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