mirror of https://github.com/webpack/webpack.git
84 lines
2.1 KiB
JavaScript
84 lines
2.1 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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*/
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"use strict";
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const RuntimeGlobals = require("../RuntimeGlobals");
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const RuntimeModule = require("../RuntimeModule");
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/** @typedef {import("../Chunk")} Chunk */
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/** @typedef {import("../ChunkGraph")} ChunkGraph */
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/** @typedef {import("../Compilation")} Compilation */
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/** @typedef {import("../MainTemplate")} MainTemplate */
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class CompatRuntimeModule extends RuntimeModule {
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constructor() {
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super("compat", RuntimeModule.STAGE_ATTACH);
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this.fullHash = true;
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}
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/**
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* @returns {string | null} runtime code
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*/
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generate() {
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const compilation = /** @type {Compilation} */ (this.compilation);
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const chunkGraph = /** @type {ChunkGraph} */ (this.chunkGraph);
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const chunk = /** @type {Chunk} */ (this.chunk);
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const {
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runtimeTemplate,
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mainTemplate,
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moduleTemplates,
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dependencyTemplates
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} = compilation;
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const bootstrap = mainTemplate.hooks.bootstrap.call(
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"",
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chunk,
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compilation.hash || "XXXX",
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moduleTemplates.javascript,
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dependencyTemplates
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);
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const localVars = mainTemplate.hooks.localVars.call(
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"",
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chunk,
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compilation.hash || "XXXX"
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);
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const requireExtensions = mainTemplate.hooks.requireExtensions.call(
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"",
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chunk,
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compilation.hash || "XXXX"
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);
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const runtimeRequirements = chunkGraph.getTreeRuntimeRequirements(chunk);
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let requireEnsure = "";
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if (runtimeRequirements.has(RuntimeGlobals.ensureChunk)) {
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const requireEnsureHandler = mainTemplate.hooks.requireEnsure.call(
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"",
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chunk,
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compilation.hash || "XXXX",
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"chunkId"
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);
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if (requireEnsureHandler) {
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requireEnsure = `${
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RuntimeGlobals.ensureChunkHandlers
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}.compat = ${runtimeTemplate.basicFunction(
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"chunkId, promises",
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requireEnsureHandler
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)};`;
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}
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}
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return [bootstrap, localVars, requireEnsure, requireExtensions]
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.filter(Boolean)
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.join("\n");
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}
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/**
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* @returns {boolean} true, if the runtime module should get it's own scope
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*/
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shouldIsolate() {
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// We avoid isolating this to have better backward-compat
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return false;
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}
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}
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module.exports = CompatRuntimeModule;
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