Marc Mintel
5397309103
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79 lines
2.1 KiB
Plaintext
79 lines
2.1 KiB
Plaintext
/*
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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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const Template = require("../Template");
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/** @typedef {import("../Compilation")} Compilation */
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class OnChunksLoadedRuntimeModule extends RuntimeModule {
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constructor() {
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super("chunk loaded");
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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 { runtimeTemplate } = compilation;
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return Template.asString([
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"var deferred = [];",
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`${RuntimeGlobals.onChunksLoaded} = ${runtimeTemplate.basicFunction(
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"result, chunkIds, fn, priority",
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[
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"if(chunkIds) {",
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Template.indent([
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"priority = priority || 0;",
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"for(var i = deferred.length; i > 0 && deferred[i - 1][2] > priority; i--) deferred[i] = deferred[i - 1];",
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"deferred[i] = [chunkIds, fn, priority];",
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"return;"
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]),
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"}",
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"var notFulfilled = Infinity;",
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"for (var i = 0; i < deferred.length; i++) {",
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Template.indent([
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runtimeTemplate.destructureArray(
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["chunkIds", "fn", "priority"],
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"deferred[i]"
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),
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"var fulfilled = true;",
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"for (var j = 0; j < chunkIds.length; j++) {",
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Template.indent([
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`if ((priority & 1 === 0 || notFulfilled >= priority) && Object.keys(${
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RuntimeGlobals.onChunksLoaded
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}).every(${runtimeTemplate.returningFunction(
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`${RuntimeGlobals.onChunksLoaded}[key](chunkIds[j])`,
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"key"
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)})) {`,
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Template.indent(["chunkIds.splice(j--, 1);"]),
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"} else {",
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Template.indent([
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"fulfilled = false;",
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"if(priority < notFulfilled) notFulfilled = priority;"
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]),
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"}"
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]),
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"}",
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"if(fulfilled) {",
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Template.indent([
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"deferred.splice(i--, 1)",
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"var r = fn();",
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"if (r !== undefined) result = r;"
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]),
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"}"
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]),
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"}",
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"return result;"
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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 = OnChunksLoadedRuntimeModule;
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