72 lines
2 KiB
JavaScript
72 lines
2 KiB
JavaScript
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/*
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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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/** @typedef {import("../ChunkTemplate")} ChunkTemplate */
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const getEntryInfo = chunk => {
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return [chunk.entryModule].filter(Boolean).map(m =>
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[m.id].concat(
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Array.from(chunk.groupsIterable)[0]
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.chunks.filter(c => c !== chunk)
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.map(c => c.id)
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)
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);
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};
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class JsonpChunkTemplatePlugin {
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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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chunkTemplate.hooks.render.tap(
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"JsonpChunkTemplatePlugin",
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(modules, chunk) => {
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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().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([${JSON.stringify(chunk.ids)},`
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);
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source.add(modules);
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const entries = getEntryInfo(chunk);
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if (entries.length > 0) {
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source.add(`,${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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hash.update(JSON.stringify(getEntryInfo(chunk)));
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hash.update(JSON.stringify(chunk.getChildIdsByOrders().prefetch) || "");
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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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