mirror of https://github.com/webpack/webpack.git
				
				
				
			
		
			
				
	
	
		
			82 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			82 lines
		
	
	
		
			2.3 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 getEntryInfo = require("./JsonpHelpers").getEntryInfo;
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/** @typedef {import("../Chunk")} Chunk */
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/** @typedef {import("../ChunkTemplate")} ChunkTemplate */
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/** @typedef {import("../Compilation")} Compilation */
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class JsonpChunkTemplatePlugin {
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	/**
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	 * @param {Compilation} compilation the compilation
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	 */
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	constructor(compilation) {
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		this.compilation = compilation;
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	}
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	/**
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	 * @param {ChunkTemplate} chunkTemplate the chunk template
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	 * @returns {void}
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	 */
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	apply(chunkTemplate) {
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		const moduleGraph = this.compilation.moduleGraph;
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		chunkTemplate.hooks.render.tap(
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			"JsonpChunkTemplatePlugin",
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			(modules, moduleTemplate, { chunk, chunkGraph }) => {
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				const jsonpFunction = chunkTemplate.outputOptions.jsonpFunction;
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				const globalObject = chunkTemplate.outputOptions.globalObject;
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				const source = new ConcatSource();
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				const prefetchChunks = chunk.getChildIdsByOrders(
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					moduleGraph,
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					chunkGraph
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				).prefetch;
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				source.add(
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					`(${globalObject}[${JSON.stringify(
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						jsonpFunction
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					)}] = ${globalObject}[${JSON.stringify(
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						jsonpFunction
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					)}] || []).push([${JSON.stringify(chunk.ids)},`
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				);
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				source.add(modules);
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				const entries = getEntryInfo(chunkGraph, chunk);
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				if (entries.length > 0) {
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					source.add(`,${JSON.stringify(entries)}`);
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				} else if (prefetchChunks && prefetchChunks.length) {
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					source.add(`,0`);
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				}
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				if (prefetchChunks && prefetchChunks.length) {
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					source.add(`,${JSON.stringify(prefetchChunks)}`);
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				}
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				source.add("])");
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				return source;
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			}
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		);
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		chunkTemplate.hooks.hash.tap("JsonpChunkTemplatePlugin", hash => {
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			hash.update("JsonpChunkTemplatePlugin");
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			hash.update("4");
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			hash.update(`${chunkTemplate.outputOptions.jsonpFunction}`);
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			hash.update(`${chunkTemplate.outputOptions.globalObject}`);
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		});
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		chunkTemplate.hooks.hashForChunk.tap(
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			"JsonpChunkTemplatePlugin",
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			(hash, chunk) => {
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				const chunkGraph = this.compilation.chunkGraph;
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				hash.update(JSON.stringify(getEntryInfo(chunkGraph, chunk)));
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				hash.update(
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					JSON.stringify(
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						chunk.getChildIdsByOrders(moduleGraph, chunkGraph).prefetch
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					) || ""
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				);
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			}
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		);
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	}
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}
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module.exports = JsonpChunkTemplatePlugin;
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