569 lines
17 KiB
JavaScript
569 lines
17 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 {
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ConcatSource,
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OriginalSource,
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PrefixSource,
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RawSource
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} = require("webpack-sources");
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const {
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Tapable,
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SyncWaterfallHook,
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SyncHook,
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SyncBailHook
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} = require("tapable");
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const Template = require("./Template");
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/** @typedef {import("webpack-sources").ConcatSource} ConcatSource */
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/** @typedef {import("webpack-sources").Source} Source */
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/** @typedef {import("./ModuleTemplate")} ModuleTemplate */
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/** @typedef {import("./Chunk")} Chunk */
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/** @typedef {import("./Module")} Module} */
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/** @typedef {import("./util/createHash").Hash} Hash} */
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/** @typedef {import("./Dependency").DependencyTemplate} DependencyTemplate} */
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/**
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* @typedef {Object} RenderManifestOptions
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* @property {Chunk} chunk the chunk used to render
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* @property {string} hash
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* @property {string} fullHash
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* @property {TODO} outputOptions
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* @property {{javascript: ModuleTemplate, webassembly: ModuleTemplate}} moduleTemplates
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* @property {Map<TODO, TODO>} dependencyTemplates
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*/
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// require function shortcuts:
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// __webpack_require__.s = the module id of the entry point
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// __webpack_require__.c = the module cache
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// __webpack_require__.m = the module functions
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// __webpack_require__.p = the bundle public path
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// __webpack_require__.i = the identity function used for harmony imports
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// __webpack_require__.e = the chunk ensure function
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// __webpack_require__.d = the exported property define getter function
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// __webpack_require__.o = Object.prototype.hasOwnProperty.call
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// __webpack_require__.r = define compatibility on export
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// __webpack_require__.t = create a fake namespace object
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// __webpack_require__.n = compatibility get default export
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// __webpack_require__.h = the webpack hash
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// __webpack_require__.w = an object containing all installed WebAssembly.Instance export objects keyed by module id
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// __webpack_require__.oe = the uncaught error handler for the webpack runtime
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// __webpack_require__.nc = the script nonce
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module.exports = class MainTemplate extends Tapable {
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/**
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*
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* @param {TODO=} outputOptions output options for the MainTemplate
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*/
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constructor(outputOptions) {
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super();
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/** @type {TODO?} */
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this.outputOptions = outputOptions || {};
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this.hooks = {
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/** @type {SyncWaterfallHook<TODO[], RenderManifestOptions>} */
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renderManifest: new SyncWaterfallHook(["result", "options"]),
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modules: new SyncWaterfallHook([
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"modules",
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"chunk",
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"hash",
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"moduleTemplate",
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"dependencyTemplates"
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]),
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moduleObj: new SyncWaterfallHook([
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"source",
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"chunk",
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"hash",
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"moduleIdExpression"
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]),
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requireEnsure: new SyncWaterfallHook([
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"source",
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"chunk",
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"hash",
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"chunkIdExpression"
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]),
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bootstrap: new SyncWaterfallHook([
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"source",
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"chunk",
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"hash",
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"moduleTemplate",
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"dependencyTemplates"
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]),
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localVars: new SyncWaterfallHook(["source", "chunk", "hash"]),
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require: new SyncWaterfallHook(["source", "chunk", "hash"]),
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requireExtensions: new SyncWaterfallHook(["source", "chunk", "hash"]),
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/** @type {SyncWaterfallHook<string, Chunk, string>} */
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beforeStartup: new SyncWaterfallHook(["source", "chunk", "hash"]),
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/** @type {SyncWaterfallHook<string, Chunk, string>} */
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startup: new SyncWaterfallHook(["source", "chunk", "hash"]),
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/** @type {SyncWaterfallHook<string, Chunk, string>} */
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afterStartup: new SyncWaterfallHook(["source", "chunk", "hash"]),
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render: new SyncWaterfallHook([
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"source",
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"chunk",
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"hash",
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"moduleTemplate",
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"dependencyTemplates"
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]),
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renderWithEntry: new SyncWaterfallHook(["source", "chunk", "hash"]),
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moduleRequire: new SyncWaterfallHook([
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"source",
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"chunk",
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"hash",
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"moduleIdExpression"
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]),
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addModule: new SyncWaterfallHook([
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"source",
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"chunk",
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"hash",
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"moduleIdExpression",
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"moduleExpression"
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]),
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currentHash: new SyncWaterfallHook(["source", "requestedLength"]),
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assetPath: new SyncWaterfallHook(["path", "options", "assetInfo"]),
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hash: new SyncHook(["hash"]),
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hashForChunk: new SyncHook(["hash", "chunk"]),
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globalHashPaths: new SyncWaterfallHook(["paths"]),
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globalHash: new SyncBailHook(["chunk", "paths"]),
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// TODO this should be moved somewhere else
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// It's weird here
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hotBootstrap: new SyncWaterfallHook(["source", "chunk", "hash"])
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};
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this.hooks.startup.tap("MainTemplate", (source, chunk, hash) => {
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/** @type {string[]} */
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const buf = [];
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if (chunk.entryModule) {
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buf.push("// Load entry module and return exports");
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buf.push(
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`return ${this.renderRequireFunctionForModule(
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hash,
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chunk,
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JSON.stringify(chunk.entryModule.id)
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)}(${this.requireFn}.s = ${JSON.stringify(chunk.entryModule.id)});`
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);
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}
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return Template.asString(buf);
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});
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this.hooks.render.tap(
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"MainTemplate",
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(bootstrapSource, chunk, hash, moduleTemplate, dependencyTemplates) => {
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const source = new ConcatSource();
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source.add("/******/ (function(modules) { // webpackBootstrap\n");
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source.add(new PrefixSource("/******/", bootstrapSource));
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source.add("/******/ })\n");
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source.add(
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"/************************************************************************/\n"
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);
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source.add("/******/ (");
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source.add(
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this.hooks.modules.call(
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new RawSource(""),
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chunk,
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hash,
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moduleTemplate,
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dependencyTemplates
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)
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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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this.hooks.localVars.tap("MainTemplate", (source, chunk, hash) => {
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return Template.asString([
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source,
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"// The module cache",
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"var installedModules = {};"
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]);
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});
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this.hooks.require.tap("MainTemplate", (source, chunk, hash) => {
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return Template.asString([
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source,
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"// Check if module is in cache",
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"if(installedModules[moduleId]) {",
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Template.indent("return installedModules[moduleId].exports;"),
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"}",
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"// Create a new module (and put it into the cache)",
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"var module = installedModules[moduleId] = {",
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Template.indent(this.hooks.moduleObj.call("", chunk, hash, "moduleId")),
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"};",
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"",
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Template.asString(
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outputOptions.strictModuleExceptionHandling
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? [
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"// Execute the module function",
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"var threw = true;",
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"try {",
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Template.indent([
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`modules[moduleId].call(module.exports, module, module.exports, ${this.renderRequireFunctionForModule(
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hash,
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chunk,
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"moduleId"
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)});`,
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"threw = false;"
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]),
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"} finally {",
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Template.indent([
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"if(threw) delete installedModules[moduleId];"
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]),
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"}"
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]
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: [
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"// Execute the module function",
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`modules[moduleId].call(module.exports, module, module.exports, ${this.renderRequireFunctionForModule(
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hash,
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chunk,
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"moduleId"
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)});`
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]
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),
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"",
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"// Flag the module as loaded",
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"module.l = true;",
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"",
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"// Return the exports of the module",
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"return module.exports;"
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]);
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});
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this.hooks.moduleObj.tap(
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"MainTemplate",
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(source, chunk, hash, varModuleId) => {
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return Template.asString(["i: moduleId,", "l: false,", "exports: {}"]);
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}
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);
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this.hooks.requireExtensions.tap("MainTemplate", (source, chunk, hash) => {
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const buf = [];
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const chunkMaps = chunk.getChunkMaps();
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// Check if there are non initial chunks which need to be imported using require-ensure
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if (Object.keys(chunkMaps.hash).length) {
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buf.push("// This file contains only the entry chunk.");
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buf.push("// The chunk loading function for additional chunks");
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buf.push(`${this.requireFn}.e = function requireEnsure(chunkId) {`);
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buf.push(Template.indent("var promises = [];"));
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buf.push(
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Template.indent(
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this.hooks.requireEnsure.call("", chunk, hash, "chunkId")
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)
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);
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buf.push(Template.indent("return Promise.all(promises);"));
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buf.push("};");
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} else if (
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chunk.hasModuleInGraph(m =>
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m.blocks.some(b => b.chunkGroup && b.chunkGroup.chunks.length > 0)
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)
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) {
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// There async blocks in the graph, so we need to add an empty requireEnsure
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// function anyway. This can happen with multiple entrypoints.
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buf.push("// The chunk loading function for additional chunks");
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buf.push("// Since all referenced chunks are already included");
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buf.push("// in this file, this function is empty here.");
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buf.push(`${this.requireFn}.e = function requireEnsure() {`);
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buf.push(Template.indent("return Promise.resolve();"));
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buf.push("};");
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}
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buf.push("");
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buf.push("// expose the modules object (__webpack_modules__)");
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buf.push(`${this.requireFn}.m = modules;`);
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buf.push("");
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buf.push("// expose the module cache");
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buf.push(`${this.requireFn}.c = installedModules;`);
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buf.push("");
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buf.push("// define getter function for harmony exports");
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buf.push(`${this.requireFn}.d = function(exports, name, getter) {`);
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buf.push(
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Template.indent([
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`if(!${this.requireFn}.o(exports, name)) {`,
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Template.indent([
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"Object.defineProperty(exports, name, { enumerable: true, get: getter });"
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]),
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"}"
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])
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);
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buf.push("};");
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buf.push("");
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buf.push("// define __esModule on exports");
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buf.push(`${this.requireFn}.r = function(exports) {`);
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buf.push(
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Template.indent([
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"if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {",
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Template.indent([
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"Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });"
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]),
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"}",
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|
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"Object.defineProperty(exports, '__esModule', { value: true });"
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])
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);
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buf.push("};");
|
||
|
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|
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buf.push("");
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||
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buf.push("// create a fake namespace object");
|
||
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buf.push("// mode & 1: value is a module id, require it");
|
||
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buf.push("// mode & 2: merge all properties of value into the ns");
|
||
|
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buf.push("// mode & 4: return value when already ns object");
|
||
|
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buf.push("// mode & 8|1: behave like require");
|
||
|
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buf.push(`${this.requireFn}.t = function(value, mode) {`);
|
||
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buf.push(
|
||
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Template.indent([
|
||
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`if(mode & 1) value = ${this.requireFn}(value);`,
|
||
|
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`if(mode & 8) return value;`,
|
||
|
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"if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;",
|
||
|
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"var ns = Object.create(null);",
|
||
|
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`${this.requireFn}.r(ns);`,
|
||
|
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"Object.defineProperty(ns, 'default', { enumerable: true, value: value });",
|
||
|
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"if(mode & 2 && typeof value != 'string') for(var key in value) " +
|
||
|
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`${this.requireFn}.d(ns, key, function(key) { ` +
|
||
|
|
"return value[key]; " +
|
||
|
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"}.bind(null, key));",
|
||
|
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"return ns;"
|
||
|
|
])
|
||
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);
|
||
|
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buf.push("};");
|
||
|
|
|
||
|
|
buf.push("");
|
||
|
|
buf.push(
|
||
|
|
"// getDefaultExport function for compatibility with non-harmony modules"
|
||
|
|
);
|
||
|
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buf.push(this.requireFn + ".n = function(module) {");
|
||
|
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buf.push(
|
||
|
|
Template.indent([
|
||
|
|
"var getter = module && module.__esModule ?",
|
||
|
|
Template.indent([
|
||
|
|
"function getDefault() { return module['default']; } :",
|
||
|
|
"function getModuleExports() { return module; };"
|
||
|
|
]),
|
||
|
|
`${this.requireFn}.d(getter, 'a', getter);`,
|
||
|
|
"return getter;"
|
||
|
|
])
|
||
|
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);
|
||
|
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buf.push("};");
|
||
|
|
|
||
|
|
buf.push("");
|
||
|
|
buf.push("// Object.prototype.hasOwnProperty.call");
|
||
|
|
buf.push(
|
||
|
|
`${this.requireFn}.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };`
|
||
|
|
);
|
||
|
|
|
||
|
|
const publicPath = this.getPublicPath({
|
||
|
|
hash: hash
|
||
|
|
});
|
||
|
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buf.push("");
|
||
|
|
buf.push("// __webpack_public_path__");
|
||
|
|
buf.push(`${this.requireFn}.p = ${JSON.stringify(publicPath)};`);
|
||
|
|
return Template.asString(buf);
|
||
|
|
});
|
||
|
|
|
||
|
|
this.requireFn = "__webpack_require__";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param {RenderManifestOptions} options render manifest options
|
||
|
|
* @returns {TODO[]} returns render manifest
|
||
|
|
*/
|
||
|
|
getRenderManifest(options) {
|
||
|
|
const result = [];
|
||
|
|
|
||
|
|
this.hooks.renderManifest.call(result, options);
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* TODO webpack 5: remove moduleTemplate and dependencyTemplates
|
||
|
|
* @param {string} hash hash to be used for render call
|
||
|
|
* @param {Chunk} chunk Chunk instance
|
||
|
|
* @param {ModuleTemplate} moduleTemplate ModuleTemplate instance for render
|
||
|
|
* @param {Map<Function, DependencyTemplate>} dependencyTemplates dependency templates
|
||
|
|
* @returns {string[]} the generated source of the bootstrap code
|
||
|
|
*/
|
||
|
|
renderBootstrap(hash, chunk, moduleTemplate, dependencyTemplates) {
|
||
|
|
const buf = [];
|
||
|
|
buf.push(
|
||
|
|
this.hooks.bootstrap.call(
|
||
|
|
"",
|
||
|
|
chunk,
|
||
|
|
hash,
|
||
|
|
moduleTemplate,
|
||
|
|
dependencyTemplates
|
||
|
|
)
|
||
|
|
);
|
||
|
|
buf.push(this.hooks.localVars.call("", chunk, hash));
|
||
|
|
buf.push("");
|
||
|
|
buf.push("// The require function");
|
||
|
|
buf.push(`function ${this.requireFn}(moduleId) {`);
|
||
|
|
buf.push(Template.indent(this.hooks.require.call("", chunk, hash)));
|
||
|
|
buf.push("}");
|
||
|
|
buf.push("");
|
||
|
|
buf.push(
|
||
|
|
Template.asString(this.hooks.requireExtensions.call("", chunk, hash))
|
||
|
|
);
|
||
|
|
buf.push("");
|
||
|
|
buf.push(Template.asString(this.hooks.beforeStartup.call("", chunk, hash)));
|
||
|
|
const afterStartupCode = Template.asString(
|
||
|
|
this.hooks.afterStartup.call("", chunk, hash)
|
||
|
|
);
|
||
|
|
if (afterStartupCode) {
|
||
|
|
// TODO webpack 5: this is a bit hacky to avoid a breaking change
|
||
|
|
// change it to a better way
|
||
|
|
buf.push("var startupResult = (function() {");
|
||
|
|
}
|
||
|
|
buf.push(Template.asString(this.hooks.startup.call("", chunk, hash)));
|
||
|
|
if (afterStartupCode) {
|
||
|
|
buf.push("})();");
|
||
|
|
buf.push(afterStartupCode);
|
||
|
|
buf.push("return startupResult;");
|
||
|
|
}
|
||
|
|
return buf;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {string} hash hash to be used for render call
|
||
|
|
* @param {Chunk} chunk Chunk instance
|
||
|
|
* @param {ModuleTemplate} moduleTemplate ModuleTemplate instance for render
|
||
|
|
* @param {Map<Function, DependencyTemplate>} dependencyTemplates dependency templates
|
||
|
|
* @returns {ConcatSource} the newly generated source from rendering
|
||
|
|
*/
|
||
|
|
render(hash, chunk, moduleTemplate, dependencyTemplates) {
|
||
|
|
const buf = this.renderBootstrap(
|
||
|
|
hash,
|
||
|
|
chunk,
|
||
|
|
moduleTemplate,
|
||
|
|
dependencyTemplates
|
||
|
|
);
|
||
|
|
let source = this.hooks.render.call(
|
||
|
|
new OriginalSource(
|
||
|
|
Template.prefix(buf, " \t") + "\n",
|
||
|
|
"webpack/bootstrap"
|
||
|
|
),
|
||
|
|
chunk,
|
||
|
|
hash,
|
||
|
|
moduleTemplate,
|
||
|
|
dependencyTemplates
|
||
|
|
);
|
||
|
|
if (chunk.hasEntryModule()) {
|
||
|
|
source = this.hooks.renderWithEntry.call(source, chunk, hash);
|
||
|
|
}
|
||
|
|
if (!source) {
|
||
|
|
throw new Error(
|
||
|
|
"Compiler error: MainTemplate plugin 'render' should return something"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
chunk.rendered = true;
|
||
|
|
return new ConcatSource(source, ";");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param {string} hash hash for render fn
|
||
|
|
* @param {Chunk} chunk Chunk instance for require
|
||
|
|
* @param {(number|string)=} varModuleId module id
|
||
|
|
* @returns {TODO} the moduleRequire hook call return signature
|
||
|
|
*/
|
||
|
|
renderRequireFunctionForModule(hash, chunk, varModuleId) {
|
||
|
|
return this.hooks.moduleRequire.call(
|
||
|
|
this.requireFn,
|
||
|
|
chunk,
|
||
|
|
hash,
|
||
|
|
varModuleId
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param {string} hash hash for render add fn
|
||
|
|
* @param {Chunk} chunk Chunk instance for require add fn
|
||
|
|
* @param {(string|number)=} varModuleId module id
|
||
|
|
* @param {Module} varModule Module instance
|
||
|
|
* @returns {TODO} renderAddModule call
|
||
|
|
*/
|
||
|
|
renderAddModule(hash, chunk, varModuleId, varModule) {
|
||
|
|
return this.hooks.addModule.call(
|
||
|
|
`modules[${varModuleId}] = ${varModule};`,
|
||
|
|
chunk,
|
||
|
|
hash,
|
||
|
|
varModuleId,
|
||
|
|
varModule
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param {string} hash string hash
|
||
|
|
* @param {number=} length length
|
||
|
|
* @returns {string} call hook return
|
||
|
|
*/
|
||
|
|
renderCurrentHashCode(hash, length) {
|
||
|
|
length = length || Infinity;
|
||
|
|
return this.hooks.currentHash.call(
|
||
|
|
JSON.stringify(hash.substr(0, length)),
|
||
|
|
length
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param {object} options get public path options
|
||
|
|
* @returns {string} hook call
|
||
|
|
*/
|
||
|
|
getPublicPath(options) {
|
||
|
|
return this.hooks.assetPath.call(
|
||
|
|
this.outputOptions.publicPath || "",
|
||
|
|
options
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
getAssetPath(path, options) {
|
||
|
|
return this.hooks.assetPath.call(path, options);
|
||
|
|
}
|
||
|
|
|
||
|
|
getAssetPathWithInfo(path, options) {
|
||
|
|
const assetInfo = {};
|
||
|
|
// TODO webpack 5: refactor assetPath hook to receive { path, info } object
|
||
|
|
const newPath = this.hooks.assetPath.call(path, options, assetInfo);
|
||
|
|
return { path: newPath, info: assetInfo };
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Updates hash with information from this template
|
||
|
|
* @param {Hash} hash the hash to update
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
updateHash(hash) {
|
||
|
|
hash.update("maintemplate");
|
||
|
|
hash.update("3");
|
||
|
|
this.hooks.hash.call(hash);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* TODO webpack 5: remove moduleTemplate and dependencyTemplates
|
||
|
|
* Updates hash with chunk-specific information from this template
|
||
|
|
* @param {Hash} hash the hash to update
|
||
|
|
* @param {Chunk} chunk the chunk
|
||
|
|
* @param {ModuleTemplate} moduleTemplate ModuleTemplate instance for render
|
||
|
|
* @param {Map<Function, DependencyTemplate>} dependencyTemplates dependency templates
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
updateHashForChunk(hash, chunk, moduleTemplate, dependencyTemplates) {
|
||
|
|
this.updateHash(hash);
|
||
|
|
this.hooks.hashForChunk.call(hash, chunk);
|
||
|
|
for (const line of this.renderBootstrap(
|
||
|
|
"0000",
|
||
|
|
chunk,
|
||
|
|
moduleTemplate,
|
||
|
|
dependencyTemplates
|
||
|
|
)) {
|
||
|
|
hash.update(line);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
useChunkHash(chunk) {
|
||
|
|
const paths = this.hooks.globalHashPaths.call([]);
|
||
|
|
return !this.hooks.globalHash.call(chunk, paths);
|
||
|
|
}
|
||
|
|
};
|