306 lines
8.6 KiB
JavaScript
306 lines
8.6 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, OriginalSource } = require("webpack-sources");
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const Template = require("./Template");
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/** @typedef {import("../declarations/WebpackOptions").LibraryCustomUmdObject} LibraryCustomUmdObject */
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/** @typedef {import("./Compilation")} Compilation */
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/**
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* @param {string[]} accessor the accessor to convert to path
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* @returns {string} the path
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*/
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const accessorToObjectAccess = accessor => {
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return accessor.map(a => `[${JSON.stringify(a)}]`).join("");
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};
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/**
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* @param {string=} base the path prefix
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* @param {string|string[]} accessor the accessor
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* @param {string=} joinWith the element separator
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* @returns {string} the path
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*/
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const accessorAccess = (base, accessor, joinWith = ", ") => {
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const accessors = Array.isArray(accessor) ? accessor : [accessor];
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return accessors
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.map((_, idx) => {
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const a = base
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? base + accessorToObjectAccess(accessors.slice(0, idx + 1))
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: accessors[0] + accessorToObjectAccess(accessors.slice(1, idx + 1));
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if (idx === accessors.length - 1) return a;
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if (idx === 0 && base === undefined)
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return `${a} = typeof ${a} === "object" ? ${a} : {}`;
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return `${a} = ${a} || {}`;
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})
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.join(joinWith);
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};
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/** @typedef {string | string[] | LibraryCustomUmdObject} UmdMainTemplatePluginName */
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/**
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* @typedef {Object} AuxiliaryCommentObject
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* @property {string} root
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* @property {string} commonjs
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* @property {string} commonjs2
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* @property {string} amd
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*/
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/**
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* @typedef {Object} UmdMainTemplatePluginOption
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* @property {boolean=} optionalAmdExternalAsGlobal
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* @property {boolean} namedDefine
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* @property {string | AuxiliaryCommentObject} auxiliaryComment
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*/
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class UmdMainTemplatePlugin {
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/**
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* @param {UmdMainTemplatePluginName} name the name of the UMD library
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* @param {UmdMainTemplatePluginOption} options the plugin option
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*/
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constructor(name, options) {
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if (typeof name === "object" && !Array.isArray(name)) {
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this.name = name.root || name.amd || name.commonjs;
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this.names = name;
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} else {
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this.name = name;
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this.names = {
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commonjs: name,
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root: name,
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amd: name
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};
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}
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this.optionalAmdExternalAsGlobal = options.optionalAmdExternalAsGlobal;
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this.namedDefine = options.namedDefine;
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this.auxiliaryComment = options.auxiliaryComment;
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}
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/**
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* @param {Compilation} compilation the compilation instance
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* @returns {void}
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*/
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apply(compilation) {
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const { mainTemplate, chunkTemplate, runtimeTemplate } = compilation;
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const onRenderWithEntry = (source, chunk, hash) => {
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let externals = chunk
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.getModules()
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.filter(
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m =>
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m.external &&
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(m.externalType === "umd" || m.externalType === "umd2")
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);
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const optionalExternals = [];
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let requiredExternals = [];
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if (this.optionalAmdExternalAsGlobal) {
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for (const m of externals) {
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if (m.optional) {
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optionalExternals.push(m);
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} else {
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requiredExternals.push(m);
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}
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}
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externals = requiredExternals.concat(optionalExternals);
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} else {
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requiredExternals = externals;
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}
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const replaceKeys = str => {
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return mainTemplate.getAssetPath(str, {
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hash,
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chunk
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});
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};
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const externalsDepsArray = modules => {
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return `[${replaceKeys(
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modules
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.map(m =>
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JSON.stringify(
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typeof m.request === "object" ? m.request.amd : m.request
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)
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)
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.join(", ")
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)}]`;
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};
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const externalsRootArray = modules => {
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return replaceKeys(
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modules
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.map(m => {
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let request = m.request;
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if (typeof request === "object") request = request.root;
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return `root${accessorToObjectAccess([].concat(request))}`;
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})
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.join(", ")
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);
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};
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const externalsRequireArray = type => {
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return replaceKeys(
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externals
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.map(m => {
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let expr;
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let request = m.request;
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if (typeof request === "object") {
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request = request[type];
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}
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if (request === undefined) {
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throw new Error(
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"Missing external configuration for type:" + type
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);
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}
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if (Array.isArray(request)) {
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expr = `require(${JSON.stringify(
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request[0]
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)})${accessorToObjectAccess(request.slice(1))}`;
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} else {
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expr = `require(${JSON.stringify(request)})`;
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}
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if (m.optional) {
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expr = `(function webpackLoadOptionalExternalModule() { try { return ${expr}; } catch(e) {} }())`;
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}
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return expr;
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})
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.join(", ")
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);
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};
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const externalsArguments = modules => {
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return modules
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.map(
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m =>
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`__WEBPACK_EXTERNAL_MODULE_${Template.toIdentifier(`${m.id}`)}__`
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)
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.join(", ");
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};
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const libraryName = library => {
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return JSON.stringify(replaceKeys([].concat(library).pop()));
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};
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let amdFactory;
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if (optionalExternals.length > 0) {
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const wrapperArguments = externalsArguments(requiredExternals);
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const factoryArguments =
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requiredExternals.length > 0
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? externalsArguments(requiredExternals) +
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", " +
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externalsRootArray(optionalExternals)
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: externalsRootArray(optionalExternals);
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amdFactory =
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`function webpackLoadOptionalExternalModuleAmd(${wrapperArguments}) {\n` +
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` return factory(${factoryArguments});\n` +
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" }";
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} else {
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amdFactory = "factory";
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}
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const auxiliaryComment = this.auxiliaryComment;
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const getAuxilaryComment = type => {
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if (auxiliaryComment) {
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if (typeof auxiliaryComment === "string")
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return "\t//" + auxiliaryComment + "\n";
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if (auxiliaryComment[type])
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return "\t//" + auxiliaryComment[type] + "\n";
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}
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return "";
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};
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return new ConcatSource(
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new OriginalSource(
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"(function webpackUniversalModuleDefinition(root, factory) {\n" +
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getAuxilaryComment("commonjs2") +
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" if(typeof exports === 'object' && typeof module === 'object')\n" +
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" module.exports = factory(" +
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externalsRequireArray("commonjs2") +
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");\n" +
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getAuxilaryComment("amd") +
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" else if(typeof define === 'function' && define.amd)\n" +
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(requiredExternals.length > 0
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? this.names.amd && this.namedDefine === true
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? " define(" +
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libraryName(this.names.amd) +
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", " +
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externalsDepsArray(requiredExternals) +
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", " +
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amdFactory +
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");\n"
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: " define(" +
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externalsDepsArray(requiredExternals) +
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", " +
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amdFactory +
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");\n"
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: this.names.amd && this.namedDefine === true
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? " define(" +
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libraryName(this.names.amd) +
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", [], " +
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amdFactory +
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");\n"
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: " define([], " + amdFactory + ");\n") +
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(this.names.root || this.names.commonjs
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? getAuxilaryComment("commonjs") +
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" else if(typeof exports === 'object')\n" +
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" exports[" +
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libraryName(this.names.commonjs || this.names.root) +
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"] = factory(" +
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externalsRequireArray("commonjs") +
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");\n" +
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getAuxilaryComment("root") +
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" else\n" +
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" " +
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replaceKeys(
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accessorAccess("root", this.names.root || this.names.commonjs)
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) +
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" = factory(" +
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externalsRootArray(externals) +
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");\n"
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: " else {\n" +
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(externals.length > 0
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? " var a = typeof exports === 'object' ? factory(" +
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externalsRequireArray("commonjs") +
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") : factory(" +
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externalsRootArray(externals) +
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");\n"
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: " var a = factory();\n") +
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" for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i];\n" +
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" }\n") +
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`})(${
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runtimeTemplate.outputOptions.globalObject
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}, function(${externalsArguments(externals)}) {\nreturn `,
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"webpack/universalModuleDefinition"
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),
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source,
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";\n})"
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);
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};
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for (const template of [mainTemplate, chunkTemplate]) {
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template.hooks.renderWithEntry.tap(
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"UmdMainTemplatePlugin",
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onRenderWithEntry
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);
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}
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mainTemplate.hooks.globalHashPaths.tap("UmdMainTemplatePlugin", paths => {
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if (this.names.root) paths = paths.concat(this.names.root);
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if (this.names.amd) paths = paths.concat(this.names.amd);
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if (this.names.commonjs) paths = paths.concat(this.names.commonjs);
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return paths;
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});
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mainTemplate.hooks.hash.tap("UmdMainTemplatePlugin", hash => {
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hash.update("umd");
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hash.update(`${this.names.root}`);
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hash.update(`${this.names.amd}`);
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hash.update(`${this.names.commonjs}`);
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});
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}
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}
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module.exports = UmdMainTemplatePlugin;
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