1087 lines
29 KiB
JavaScript
1087 lines
29 KiB
JavaScript
/*
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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 Dependency = require("../Dependency");
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const { UsageState } = require("../ExportsInfo");
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const HarmonyLinkingError = require("../HarmonyLinkingError");
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const InitFragment = require("../InitFragment");
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const RuntimeGlobals = require("../RuntimeGlobals");
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const Template = require("../Template");
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const { first, combine } = require("../util/SetHelpers");
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const makeSerializable = require("../util/makeSerializable");
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const propertyAccess = require("../util/propertyAccess");
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const HarmonyExportInitFragment = require("./HarmonyExportInitFragment");
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const HarmonyImportDependency = require("./HarmonyImportDependency");
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const processExportInfo = require("./processExportInfo");
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/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
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/** @typedef {import("../ChunkGraph")} ChunkGraph */
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/** @typedef {import("../Dependency").ExportsSpec} ExportsSpec */
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/** @typedef {import("../Dependency").ReferencedExport} ReferencedExport */
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/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
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/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
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/** @typedef {import("../ExportsInfo")} ExportsInfo */
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/** @typedef {import("../ExportsInfo").ExportInfo} ExportInfo */
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/** @typedef {import("../Module")} Module */
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/** @typedef {import("../ModuleGraph")} ModuleGraph */
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/** @typedef {import("../ModuleGraphConnection")} ModuleGraphConnection */
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/** @typedef {import("../ModuleGraphConnection").ConnectionState} ConnectionState */
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/** @typedef {import("../RuntimeTemplate")} RuntimeTemplate */
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/** @typedef {import("../WebpackError")} WebpackError */
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/** @typedef {import("../util/Hash")} Hash */
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/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
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/** @typedef {"missing"|"unused"|"empty-star"|"reexport-dynamic-default"|"reexport-named-default"|"reexport-namespace-object"|"reexport-fake-namespace-object"|"reexport-undefined"|"normal-reexport"|"dynamic-reexport"} ExportModeType */
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const idsSymbol = Symbol("HarmonyExportImportedSpecifierDependency.ids");
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class NormalReexportItem {
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/**
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* @param {string} name export name
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* @param {string[]} ids reexported ids from other module
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* @param {ExportInfo} exportInfo export info from other module
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* @param {boolean} checked true, if it should be checked at runtime if this export exists
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* @param {boolean} hidden true, if it is hidden behind another active export in the same module
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*/
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constructor(name, ids, exportInfo, checked, hidden) {
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this.name = name;
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this.ids = ids;
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this.exportInfo = exportInfo;
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this.checked = checked;
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this.hidden = hidden;
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}
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}
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class ExportMode {
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/**
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* @param {ExportModeType} type type of the mode
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*/
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constructor(type) {
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/** @type {ExportModeType} */
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this.type = type;
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// for "normal-reexport":
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/** @type {NormalReexportItem[] | null} */
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this.items = null;
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// for "reexport-named-default" | "reexport-fake-namespace-object" | "reexport-namespace-object"
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/** @type {string|null} */
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this.name = null;
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/** @type {ExportInfo | null} */
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this.partialNamespaceExportInfo = null;
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// for "dynamic-reexport":
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/** @type {Set<string> | null} */
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this.ignored = null;
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// for "dynamic-reexport" | "empty-star":
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/** @type {Set<string> | null} */
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this.hidden = null;
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// for "missing":
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/** @type {string | null} */
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this.userRequest = null;
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// for "reexport-fake-namespace-object":
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/** @type {number} */
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this.fakeType = 0;
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}
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}
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class HarmonyExportImportedSpecifierDependency extends HarmonyImportDependency {
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/**
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* @param {string} request the request string
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* @param {number} sourceOrder the order in the original source file
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* @param {string[]} ids the requested export name of the imported module
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* @param {string | null} name the export name of for this module
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* @param {Set<string>} activeExports other named exports in the module
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* @param {Iterable<HarmonyExportImportedSpecifierDependency>} otherStarExports other star exports in the module
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* @param {boolean} strictExportPresence when true, missing exports in the imported module lead to errors instead of warnings
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*/
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constructor(
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request,
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sourceOrder,
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ids,
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name,
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activeExports,
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otherStarExports,
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strictExportPresence
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) {
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super(request, sourceOrder);
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this.ids = ids;
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this.name = name;
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this.activeExports = activeExports;
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this.otherStarExports = otherStarExports;
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this.strictExportPresence = strictExportPresence;
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}
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// TODO webpack 6 remove
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get id() {
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throw new Error("id was renamed to ids and type changed to string[]");
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}
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// TODO webpack 6 remove
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getId() {
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throw new Error("id was renamed to ids and type changed to string[]");
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}
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// TODO webpack 6 remove
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setId() {
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throw new Error("id was renamed to ids and type changed to string[]");
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}
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get type() {
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return "harmony export imported specifier";
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}
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/**
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* @param {ModuleGraph} moduleGraph the module graph
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* @returns {string[]} the imported id
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*/
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getIds(moduleGraph) {
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return moduleGraph.getMeta(this)[idsSymbol] || this.ids;
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}
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/**
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* @param {ModuleGraph} moduleGraph the module graph
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* @param {string[]} ids the imported ids
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* @returns {void}
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*/
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setIds(moduleGraph, ids) {
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moduleGraph.getMeta(this)[idsSymbol] = ids;
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}
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/**
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* @param {ModuleGraph} moduleGraph the module graph
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* @param {RuntimeSpec} runtime the runtime
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* @returns {ExportMode} the export mode
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*/
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getMode(moduleGraph, runtime) {
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const name = this.name;
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const ids = this.getIds(moduleGraph);
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const parentModule = moduleGraph.getParentModule(this);
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const importedModule = moduleGraph.getModule(this);
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const exportsInfo = moduleGraph.getExportsInfo(parentModule);
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if (!importedModule) {
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const mode = new ExportMode("missing");
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mode.userRequest = this.userRequest;
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return mode;
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}
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if (
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name
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? exportsInfo.getUsed(name, runtime) === UsageState.Unused
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: exportsInfo.isUsed(runtime) === false
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) {
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const mode = new ExportMode("unused");
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mode.name = name || "*";
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return mode;
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}
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const importedExportsType = importedModule.getExportsType(
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moduleGraph,
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parentModule.buildMeta.strictHarmonyModule
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);
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// Special handling for reexporting the default export
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// from non-namespace modules
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if (name && ids.length > 0 && ids[0] === "default") {
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switch (importedExportsType) {
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case "dynamic": {
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const mode = new ExportMode("reexport-dynamic-default");
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mode.name = name;
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return mode;
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}
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case "default-only":
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case "default-with-named": {
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const exportInfo = exportsInfo.getReadOnlyExportInfo(name);
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const mode = new ExportMode("reexport-named-default");
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mode.name = name;
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mode.partialNamespaceExportInfo = exportInfo;
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return mode;
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}
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}
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}
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// reexporting with a fixed name
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if (name) {
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let mode;
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const exportInfo = exportsInfo.getReadOnlyExportInfo(name);
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if (ids.length > 0) {
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// export { name as name }
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switch (importedExportsType) {
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case "default-only":
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mode = new ExportMode("reexport-undefined");
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mode.name = name;
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break;
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default:
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mode = new ExportMode("normal-reexport");
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mode.items = [
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new NormalReexportItem(name, ids, exportInfo, false, false)
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];
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break;
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}
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} else {
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// export * as name
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switch (importedExportsType) {
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case "default-only":
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mode = new ExportMode("reexport-fake-namespace-object");
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mode.name = name;
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mode.partialNamespaceExportInfo = exportInfo;
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mode.fakeType = 0;
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break;
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case "default-with-named":
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mode = new ExportMode("reexport-fake-namespace-object");
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mode.name = name;
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mode.partialNamespaceExportInfo = exportInfo;
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mode.fakeType = 2;
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break;
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case "dynamic":
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default:
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mode = new ExportMode("reexport-namespace-object");
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mode.name = name;
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mode.partialNamespaceExportInfo = exportInfo;
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}
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}
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return mode;
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}
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// Star reexporting
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const { ignoredExports, exports, checked, hidden } = this.getStarReexports(
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moduleGraph,
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runtime,
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exportsInfo,
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importedModule
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);
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if (!exports) {
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// We have too few info about the modules
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// Delegate the logic to the runtime code
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const mode = new ExportMode("dynamic-reexport");
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mode.ignored = ignoredExports;
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mode.hidden = hidden;
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return mode;
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}
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if (exports.size === 0) {
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const mode = new ExportMode("empty-star");
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mode.hidden = hidden;
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return mode;
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}
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const mode = new ExportMode("normal-reexport");
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mode.items = Array.from(
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exports,
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exportName =>
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new NormalReexportItem(
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exportName,
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[exportName],
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exportsInfo.getReadOnlyExportInfo(exportName),
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checked.has(exportName),
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false
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)
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).concat(
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Array.from(
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hidden,
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exportName =>
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new NormalReexportItem(
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exportName,
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[exportName],
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exportsInfo.getReadOnlyExportInfo(exportName),
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false,
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true
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)
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)
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);
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return mode;
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}
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/**
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* @param {ModuleGraph} moduleGraph the module graph
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* @param {RuntimeSpec} runtime the runtime
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* @param {ExportsInfo} exportsInfo exports info about the current module (optional)
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* @param {Module} importedModule the imported module (optional)
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* @returns {{exports?: Set<string>, checked?: Set<string>, ignoredExports: Set<string>, hidden: Set<string>}} information
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*/
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getStarReexports(
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moduleGraph,
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runtime,
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exportsInfo = moduleGraph.getExportsInfo(moduleGraph.getParentModule(this)),
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importedModule = moduleGraph.getModule(this)
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) {
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const importedExportsInfo = moduleGraph.getExportsInfo(importedModule);
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const noExtraExports =
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importedExportsInfo.otherExportsInfo.provided === false;
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const noExtraImports =
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exportsInfo.otherExportsInfo.getUsed(runtime) === UsageState.Unused;
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const ignoredExports = new Set(["default", ...this.activeExports]);
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const hiddenExports = new Set(
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this._discoverActiveExportsFromOtherStarExports(moduleGraph).keys()
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);
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for (const e of ignoredExports) hiddenExports.delete(e);
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if (!noExtraExports && !noExtraImports) {
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return {
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ignoredExports,
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hidden: hiddenExports
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};
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}
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/** @type {Set<string>} */
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const exports = new Set();
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/** @type {Set<string>} */
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const checked = new Set();
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/** @type {Set<string>} */
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const hidden = new Set();
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if (noExtraImports) {
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for (const exportInfo of exportsInfo.orderedExports) {
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const name = exportInfo.name;
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if (ignoredExports.has(name)) continue;
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if (exportInfo.getUsed(runtime) === UsageState.Unused) continue;
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const importedExportInfo = importedExportsInfo.getReadOnlyExportInfo(
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name
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);
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if (importedExportInfo.provided === false) continue;
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if (hiddenExports.has(name)) {
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hidden.add(name);
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continue;
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}
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exports.add(name);
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if (importedExportInfo.provided === true) continue;
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checked.add(name);
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}
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} else if (noExtraExports) {
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for (const importedExportInfo of importedExportsInfo.orderedExports) {
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const name = importedExportInfo.name;
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if (ignoredExports.has(name)) continue;
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if (importedExportInfo.provided === false) continue;
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const exportInfo = exportsInfo.getReadOnlyExportInfo(name);
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if (exportInfo.getUsed(runtime) === UsageState.Unused) continue;
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if (hiddenExports.has(name)) {
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hidden.add(name);
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continue;
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}
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exports.add(name);
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if (importedExportInfo.provided === true) continue;
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checked.add(name);
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}
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}
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return { ignoredExports, exports, checked, hidden };
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}
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/**
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* @param {ModuleGraph} moduleGraph module graph
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* @returns {null | false | function(ModuleGraphConnection, RuntimeSpec): ConnectionState} function to determine if the connection is active
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*/
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getCondition(moduleGraph) {
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return (connection, runtime) => {
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const mode = this.getMode(moduleGraph, runtime);
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return mode.type !== "unused" && mode.type !== "empty-star";
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};
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}
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/**
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* @param {ModuleGraph} moduleGraph the module graph
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* @returns {ConnectionState} how this dependency connects the module to referencing modules
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*/
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getModuleEvaluationSideEffectsState(moduleGraph) {
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return false;
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}
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/**
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* Returns list of exports referenced by this dependency
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* @param {ModuleGraph} moduleGraph module graph
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* @param {RuntimeSpec} runtime the runtime for which the module is analysed
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* @returns {(string[] | ReferencedExport)[]} referenced exports
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*/
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getReferencedExports(moduleGraph, runtime) {
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const mode = this.getMode(moduleGraph, runtime);
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switch (mode.type) {
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case "missing":
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case "unused":
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case "empty-star":
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case "reexport-undefined":
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return Dependency.NO_EXPORTS_REFERENCED;
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case "reexport-dynamic-default":
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return Dependency.EXPORTS_OBJECT_REFERENCED;
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case "reexport-named-default": {
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if (!mode.partialNamespaceExportInfo)
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return Dependency.EXPORTS_OBJECT_REFERENCED;
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/** @type {string[][]} */
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const referencedExports = [];
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processExportInfo(
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runtime,
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referencedExports,
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[],
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/** @type {ExportInfo} */ (mode.partialNamespaceExportInfo)
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);
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return referencedExports;
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}
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case "reexport-namespace-object":
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case "reexport-fake-namespace-object": {
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if (!mode.partialNamespaceExportInfo)
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return Dependency.EXPORTS_OBJECT_REFERENCED;
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/** @type {string[][]} */
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const referencedExports = [];
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processExportInfo(
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runtime,
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referencedExports,
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[],
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/** @type {ExportInfo} */ (mode.partialNamespaceExportInfo),
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mode.type === "reexport-fake-namespace-object"
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);
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return referencedExports;
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}
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case "dynamic-reexport":
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return Dependency.EXPORTS_OBJECT_REFERENCED;
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case "normal-reexport": {
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const referencedExports = [];
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for (const { ids, exportInfo, hidden } of mode.items) {
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if (hidden) continue;
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processExportInfo(runtime, referencedExports, ids, exportInfo, false);
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}
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return referencedExports;
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}
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default:
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throw new Error(`Unknown mode ${mode.type}`);
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}
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}
|
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|
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/**
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* @param {ModuleGraph} moduleGraph the module graph
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* @returns {Map<string, HarmonyExportImportedSpecifierDependency>} exported names and their origin dependency
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*/
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_discoverActiveExportsFromOtherStarExports(moduleGraph) {
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if (!this.otherStarExports) {
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return new Map();
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}
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const result = new Map();
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// try to learn impossible exports from other star exports with provided exports
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for (const otherStarExport of this.otherStarExports) {
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const otherImportedModule = moduleGraph.getModule(otherStarExport);
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if (otherImportedModule) {
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const exportsInfo = moduleGraph.getExportsInfo(otherImportedModule);
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for (const exportInfo of exportsInfo.exports) {
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if (exportInfo.provided === true && !result.has(exportInfo.name)) {
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result.set(exportInfo.name, otherStarExport);
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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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* Returns the exported names
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* @param {ModuleGraph} moduleGraph module graph
|
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* @returns {ExportsSpec | undefined} export names
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*/
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getExports(moduleGraph) {
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const mode = this.getMode(moduleGraph, undefined);
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switch (mode.type) {
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case "missing":
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return undefined;
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case "dynamic-reexport": {
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const from = moduleGraph.getConnection(this);
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return {
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exports: true,
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from,
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canMangle: false,
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excludeExports: combine(mode.ignored, mode.hidden),
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hideExports: mode.hidden,
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dependencies: [from.module]
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};
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}
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case "empty-star":
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return {
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exports: [],
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hideExports: mode.hidden,
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dependencies: [moduleGraph.getModule(this)]
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};
|
|
// falls through
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case "normal-reexport": {
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const from = moduleGraph.getConnection(this);
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return {
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exports: Array.from(mode.items, item => ({
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name: item.name,
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from,
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export: item.ids,
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hidden: item.hidden
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})),
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dependencies: [from.module]
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};
|
|
}
|
|
case "reexport-dynamic-default": {
|
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{
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const from = moduleGraph.getConnection(this);
|
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return {
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exports: [
|
|
{
|
|
name: mode.name,
|
|
from,
|
|
export: ["default"]
|
|
}
|
|
],
|
|
dependencies: [from.module]
|
|
};
|
|
}
|
|
}
|
|
case "reexport-undefined":
|
|
return {
|
|
exports: [mode.name],
|
|
dependencies: [moduleGraph.getModule(this)]
|
|
};
|
|
case "reexport-fake-namespace-object": {
|
|
const from = moduleGraph.getConnection(this);
|
|
return {
|
|
exports: [
|
|
{
|
|
name: mode.name,
|
|
from,
|
|
export: null,
|
|
exports: [
|
|
{
|
|
name: "default",
|
|
canMangle: false,
|
|
from,
|
|
export: null
|
|
}
|
|
]
|
|
}
|
|
],
|
|
dependencies: [from.module]
|
|
};
|
|
}
|
|
case "reexport-namespace-object": {
|
|
const from = moduleGraph.getConnection(this);
|
|
return {
|
|
exports: [
|
|
{
|
|
name: mode.name,
|
|
from,
|
|
export: null
|
|
}
|
|
],
|
|
dependencies: [from.module]
|
|
};
|
|
}
|
|
case "reexport-named-default": {
|
|
const from = moduleGraph.getConnection(this);
|
|
return {
|
|
exports: [
|
|
{
|
|
name: mode.name,
|
|
from,
|
|
export: ["default"]
|
|
}
|
|
],
|
|
dependencies: [from.module]
|
|
};
|
|
}
|
|
default:
|
|
throw new Error(`Unknown mode ${mode.type}`);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns warnings
|
|
* @param {ModuleGraph} moduleGraph module graph
|
|
* @returns {WebpackError[]} warnings
|
|
*/
|
|
getWarnings(moduleGraph) {
|
|
if (
|
|
this.strictExportPresence ||
|
|
moduleGraph.getParentModule(this).buildMeta.strictHarmonyModule
|
|
) {
|
|
return null;
|
|
}
|
|
|
|
return this._getErrors(moduleGraph);
|
|
}
|
|
|
|
/**
|
|
* Returns errors
|
|
* @param {ModuleGraph} moduleGraph module graph
|
|
* @returns {WebpackError[]} errors
|
|
*/
|
|
getErrors(moduleGraph) {
|
|
if (
|
|
this.strictExportPresence ||
|
|
moduleGraph.getParentModule(this).buildMeta.strictHarmonyModule
|
|
) {
|
|
return this._getErrors(moduleGraph);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph module graph
|
|
* @returns {WebpackError[] | undefined} errors
|
|
*/
|
|
_getErrors(moduleGraph) {
|
|
const ids = this.getIds(moduleGraph);
|
|
let errors = this.getLinkingErrors(
|
|
moduleGraph,
|
|
ids,
|
|
`(reexported as '${this.name}')`
|
|
);
|
|
if (ids.length === 0 && this.name === null) {
|
|
const potentialConflicts = this._discoverActiveExportsFromOtherStarExports(
|
|
moduleGraph
|
|
);
|
|
if (potentialConflicts.size > 0) {
|
|
const importedModule = moduleGraph.getModule(this);
|
|
if (importedModule) {
|
|
const exportsInfo = moduleGraph.getExportsInfo(importedModule);
|
|
const conflicts = new Map();
|
|
for (const exportInfo of exportsInfo.orderedExports) {
|
|
if (exportInfo.provided !== true) continue;
|
|
if (exportInfo.name === "default") continue;
|
|
if (this.activeExports.has(exportInfo.name)) continue;
|
|
const conflictingDependency = potentialConflicts.get(
|
|
exportInfo.name
|
|
);
|
|
if (!conflictingDependency) continue;
|
|
const target = exportInfo.getTerminalBinding(moduleGraph);
|
|
if (!target) continue;
|
|
const conflictingModule = moduleGraph.getModule(
|
|
conflictingDependency
|
|
);
|
|
if (conflictingModule === importedModule) continue;
|
|
const conflictingExportInfo = moduleGraph.getExportInfo(
|
|
conflictingModule,
|
|
exportInfo.name
|
|
);
|
|
const conflictingTarget = conflictingExportInfo.getTerminalBinding(
|
|
moduleGraph
|
|
);
|
|
if (!conflictingTarget) continue;
|
|
if (target === conflictingTarget) continue;
|
|
const list = conflicts.get(conflictingDependency.request);
|
|
if (list === undefined) {
|
|
conflicts.set(conflictingDependency.request, [exportInfo.name]);
|
|
} else {
|
|
list.push(exportInfo.name);
|
|
}
|
|
}
|
|
for (const [request, exports] of conflicts) {
|
|
if (!errors) errors = [];
|
|
errors.push(
|
|
new HarmonyLinkingError(
|
|
`The requested module '${
|
|
this.request
|
|
}' contains conflicting star exports for the ${
|
|
exports.length > 1 ? "names" : "name"
|
|
} ${exports
|
|
.map(e => `'${e}'`)
|
|
.join(", ")} with the previous requested module '${request}'`
|
|
)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return errors;
|
|
}
|
|
|
|
serialize(context) {
|
|
const { write } = context;
|
|
|
|
write(this.ids);
|
|
write(this.name);
|
|
write(this.activeExports);
|
|
write(this.otherStarExports);
|
|
write(this.strictExportPresence);
|
|
|
|
super.serialize(context);
|
|
}
|
|
|
|
deserialize(context) {
|
|
const { read } = context;
|
|
|
|
this.ids = read();
|
|
this.name = read();
|
|
this.activeExports = read();
|
|
this.otherStarExports = read();
|
|
this.strictExportPresence = read();
|
|
|
|
super.deserialize(context);
|
|
}
|
|
}
|
|
|
|
makeSerializable(
|
|
HarmonyExportImportedSpecifierDependency,
|
|
"webpack/lib/dependencies/HarmonyExportImportedSpecifierDependency"
|
|
);
|
|
|
|
module.exports = HarmonyExportImportedSpecifierDependency;
|
|
|
|
HarmonyExportImportedSpecifierDependency.Template = class HarmonyExportImportedSpecifierDependencyTemplate extends (
|
|
HarmonyImportDependency.Template
|
|
) {
|
|
/**
|
|
* @param {Dependency} dependency the dependency for which the template should be applied
|
|
* @param {ReplaceSource} source the current replace source which can be modified
|
|
* @param {DependencyTemplateContext} templateContext the context object
|
|
* @returns {void}
|
|
*/
|
|
apply(dependency, source, templateContext) {
|
|
const { moduleGraph, runtime, concatenationScope } = templateContext;
|
|
|
|
const dep = /** @type {HarmonyExportImportedSpecifierDependency} */ (dependency);
|
|
|
|
const mode = dep.getMode(moduleGraph, runtime);
|
|
|
|
if (concatenationScope) {
|
|
switch (mode.type) {
|
|
case "reexport-undefined":
|
|
concatenationScope.registerRawExport(
|
|
mode.name,
|
|
"/* reexport non-default export from non-harmony */ undefined"
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (mode.type !== "unused" && mode.type !== "empty-star") {
|
|
super.apply(dependency, source, templateContext);
|
|
|
|
this._addExportFragments(
|
|
templateContext.initFragments,
|
|
dep,
|
|
mode,
|
|
templateContext.module,
|
|
moduleGraph,
|
|
runtime,
|
|
templateContext.runtimeTemplate,
|
|
templateContext.runtimeRequirements
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {InitFragment[]} initFragments target array for init fragments
|
|
* @param {HarmonyExportImportedSpecifierDependency} dep dependency
|
|
* @param {ExportMode} mode the export mode
|
|
* @param {Module} module the current module
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {RuntimeSpec} runtime the runtime
|
|
* @param {RuntimeTemplate} runtimeTemplate the runtime template
|
|
* @param {Set<string>} runtimeRequirements runtime requirements
|
|
* @returns {void}
|
|
*/
|
|
_addExportFragments(
|
|
initFragments,
|
|
dep,
|
|
mode,
|
|
module,
|
|
moduleGraph,
|
|
runtime,
|
|
runtimeTemplate,
|
|
runtimeRequirements
|
|
) {
|
|
const importedModule = moduleGraph.getModule(dep);
|
|
const importVar = dep.getImportVar(moduleGraph);
|
|
|
|
switch (mode.type) {
|
|
case "missing":
|
|
case "empty-star":
|
|
initFragments.push(
|
|
new InitFragment(
|
|
"/* empty/unused harmony star reexport */\n",
|
|
InitFragment.STAGE_HARMONY_EXPORTS,
|
|
1
|
|
)
|
|
);
|
|
break;
|
|
|
|
case "unused":
|
|
initFragments.push(
|
|
new InitFragment(
|
|
`${Template.toNormalComment(
|
|
`unused harmony reexport ${mode.name}`
|
|
)}\n`,
|
|
InitFragment.STAGE_HARMONY_EXPORTS,
|
|
1
|
|
)
|
|
);
|
|
break;
|
|
|
|
case "reexport-dynamic-default":
|
|
initFragments.push(
|
|
this.getReexportFragment(
|
|
module,
|
|
"reexport default from dynamic",
|
|
moduleGraph.getExportsInfo(module).getUsedName(mode.name, runtime),
|
|
importVar,
|
|
null,
|
|
runtimeRequirements
|
|
)
|
|
);
|
|
break;
|
|
|
|
case "reexport-fake-namespace-object":
|
|
initFragments.push(
|
|
...this.getReexportFakeNamespaceObjectFragments(
|
|
module,
|
|
moduleGraph.getExportsInfo(module).getUsedName(mode.name, runtime),
|
|
importVar,
|
|
mode.fakeType,
|
|
runtimeRequirements
|
|
)
|
|
);
|
|
break;
|
|
|
|
case "reexport-undefined":
|
|
initFragments.push(
|
|
this.getReexportFragment(
|
|
module,
|
|
"reexport non-default export from non-harmony",
|
|
moduleGraph.getExportsInfo(module).getUsedName(mode.name, runtime),
|
|
"undefined",
|
|
"",
|
|
runtimeRequirements
|
|
)
|
|
);
|
|
break;
|
|
|
|
case "reexport-named-default":
|
|
initFragments.push(
|
|
this.getReexportFragment(
|
|
module,
|
|
"reexport default export from named module",
|
|
moduleGraph.getExportsInfo(module).getUsedName(mode.name, runtime),
|
|
importVar,
|
|
"",
|
|
runtimeRequirements
|
|
)
|
|
);
|
|
break;
|
|
|
|
case "reexport-namespace-object":
|
|
initFragments.push(
|
|
this.getReexportFragment(
|
|
module,
|
|
"reexport module object",
|
|
moduleGraph.getExportsInfo(module).getUsedName(mode.name, runtime),
|
|
importVar,
|
|
"",
|
|
runtimeRequirements
|
|
)
|
|
);
|
|
break;
|
|
|
|
case "normal-reexport":
|
|
for (const { name, ids, checked, hidden } of mode.items) {
|
|
if (hidden) continue;
|
|
if (checked) {
|
|
initFragments.push(
|
|
new InitFragment(
|
|
"/* harmony reexport (checked) */ " +
|
|
this.getConditionalReexportStatement(
|
|
module,
|
|
name,
|
|
importVar,
|
|
ids,
|
|
runtimeRequirements
|
|
),
|
|
InitFragment.STAGE_HARMONY_IMPORTS,
|
|
dep.sourceOrder
|
|
)
|
|
);
|
|
} else {
|
|
initFragments.push(
|
|
this.getReexportFragment(
|
|
module,
|
|
"reexport safe",
|
|
moduleGraph.getExportsInfo(module).getUsedName(name, runtime),
|
|
importVar,
|
|
moduleGraph
|
|
.getExportsInfo(importedModule)
|
|
.getUsedName(ids, runtime),
|
|
runtimeRequirements
|
|
)
|
|
);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case "dynamic-reexport": {
|
|
const ignored = combine(mode.ignored, mode.hidden);
|
|
const modern =
|
|
runtimeTemplate.supportsConst() &&
|
|
runtimeTemplate.supportsArrowFunction();
|
|
let content =
|
|
"/* harmony reexport (unknown) */ var __WEBPACK_REEXPORT_OBJECT__ = {};\n" +
|
|
`/* harmony reexport (unknown) */ for(${
|
|
modern ? "const" : "var"
|
|
} __WEBPACK_IMPORT_KEY__ in ${importVar}) `;
|
|
|
|
// Filter out exports which are defined by other exports
|
|
// and filter out default export because it cannot be reexported with *
|
|
if (ignored.size > 1) {
|
|
content +=
|
|
"if(" +
|
|
JSON.stringify(Array.from(ignored)) +
|
|
".indexOf(__WEBPACK_IMPORT_KEY__) < 0) ";
|
|
} else if (ignored.size === 1) {
|
|
content += `if(__WEBPACK_IMPORT_KEY__ !== ${JSON.stringify(
|
|
first(ignored)
|
|
)}) `;
|
|
}
|
|
|
|
content += `__WEBPACK_REEXPORT_OBJECT__[__WEBPACK_IMPORT_KEY__] = `;
|
|
if (modern) {
|
|
content += `() => ${importVar}[__WEBPACK_IMPORT_KEY__]`;
|
|
} else {
|
|
content += `function(key) { return ${importVar}[key]; }.bind(0, __WEBPACK_IMPORT_KEY__)`;
|
|
}
|
|
|
|
runtimeRequirements.add(RuntimeGlobals.exports);
|
|
runtimeRequirements.add(RuntimeGlobals.definePropertyGetters);
|
|
|
|
const exportsName = module.exportsArgument;
|
|
initFragments.push(
|
|
new InitFragment(
|
|
`${content}\n/* harmony reexport (unknown) */ ${RuntimeGlobals.definePropertyGetters}(${exportsName}, __WEBPACK_REEXPORT_OBJECT__);\n`,
|
|
InitFragment.STAGE_HARMONY_IMPORTS,
|
|
dep.sourceOrder
|
|
)
|
|
);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
throw new Error(`Unknown mode ${mode.type}`);
|
|
}
|
|
}
|
|
|
|
getReexportFragment(
|
|
module,
|
|
comment,
|
|
key,
|
|
name,
|
|
valueKey,
|
|
runtimeRequirements
|
|
) {
|
|
const returnValue = this.getReturnValue(name, valueKey);
|
|
|
|
runtimeRequirements.add(RuntimeGlobals.exports);
|
|
runtimeRequirements.add(RuntimeGlobals.definePropertyGetters);
|
|
|
|
const map = new Map();
|
|
map.set(key, `/* ${comment} */ ${returnValue}`);
|
|
|
|
return new HarmonyExportInitFragment(module.exportsArgument, map);
|
|
}
|
|
|
|
getReexportFakeNamespaceObjectFragments(
|
|
module,
|
|
key,
|
|
name,
|
|
fakeType,
|
|
runtimeRequirements
|
|
) {
|
|
runtimeRequirements.add(RuntimeGlobals.exports);
|
|
runtimeRequirements.add(RuntimeGlobals.definePropertyGetters);
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
|
|
const map = new Map();
|
|
map.set(
|
|
key,
|
|
`/* reexport fake namespace object from non-harmony */ ${name}_namespace_cache || (${name}_namespace_cache = ${
|
|
RuntimeGlobals.createFakeNamespaceObject
|
|
}(${name}${fakeType ? `, ${fakeType}` : ""}))`
|
|
);
|
|
|
|
return [
|
|
new InitFragment(
|
|
`var ${name}_namespace_cache;\n`,
|
|
InitFragment.STAGE_CONSTANTS,
|
|
-1,
|
|
`${name}_namespace_cache`
|
|
),
|
|
new HarmonyExportInitFragment(module.exportsArgument, map)
|
|
];
|
|
}
|
|
|
|
getConditionalReexportStatement(
|
|
module,
|
|
key,
|
|
name,
|
|
valueKey,
|
|
runtimeRequirements
|
|
) {
|
|
if (valueKey === false) {
|
|
return "/* unused export */\n";
|
|
}
|
|
|
|
const exportsName = module.exportsArgument;
|
|
const returnValue = this.getReturnValue(name, valueKey);
|
|
|
|
runtimeRequirements.add(RuntimeGlobals.exports);
|
|
runtimeRequirements.add(RuntimeGlobals.definePropertyGetters);
|
|
runtimeRequirements.add(RuntimeGlobals.hasOwnProperty);
|
|
|
|
return `if(${RuntimeGlobals.hasOwnProperty}(${name}, ${JSON.stringify(
|
|
valueKey[0]
|
|
)})) ${
|
|
RuntimeGlobals.definePropertyGetters
|
|
}(${exportsName}, { ${JSON.stringify(
|
|
key
|
|
)}: function() { return ${returnValue}; } });\n`;
|
|
}
|
|
|
|
getReturnValue(name, valueKey) {
|
|
if (valueKey === null) {
|
|
return `${name}_default.a`;
|
|
}
|
|
|
|
if (valueKey === "") {
|
|
return name;
|
|
}
|
|
|
|
if (valueKey === false) {
|
|
return "/* unused export */ undefined";
|
|
}
|
|
|
|
return `${name}${propertyAccess(valueKey)}`;
|
|
}
|
|
};
|