1523 lines
43 KiB
JavaScript
1523 lines
43 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 { equals } = require("./util/ArrayHelpers");
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const SortableSet = require("./util/SortableSet");
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const makeSerializable = require("./util/makeSerializable");
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const { forEachRuntime } = require("./util/runtime");
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/** @typedef {import("./Dependency").RuntimeSpec} RuntimeSpec */
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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("./util/Hash")} Hash */
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/** @typedef {typeof UsageState.OnlyPropertiesUsed | typeof UsageState.NoInfo | typeof UsageState.Unknown | typeof UsageState.Used} RuntimeUsageStateType */
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/** @typedef {typeof UsageState.Unused | RuntimeUsageStateType} UsageStateType */
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const UsageState = Object.freeze({
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Unused: /** @type {0} */ (0),
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OnlyPropertiesUsed: /** @type {1} */ (1),
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NoInfo: /** @type {2} */ (2),
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Unknown: /** @type {3} */ (3),
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Used: /** @type {4} */ (4)
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});
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const RETURNS_TRUE = () => true;
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const CIRCULAR = Symbol("circular target");
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class RestoreProvidedData {
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constructor(
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exports,
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otherProvided,
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otherCanMangleProvide,
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otherTerminalBinding
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) {
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this.exports = exports;
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this.otherProvided = otherProvided;
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this.otherCanMangleProvide = otherCanMangleProvide;
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this.otherTerminalBinding = otherTerminalBinding;
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}
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serialize({ write }) {
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write(this.exports);
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write(this.otherProvided);
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write(this.otherCanMangleProvide);
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write(this.otherTerminalBinding);
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}
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static deserialize({ read }) {
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return new RestoreProvidedData(read(), read(), read(), read());
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}
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}
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makeSerializable(
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RestoreProvidedData,
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"webpack/lib/ModuleGraph",
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"RestoreProvidedData"
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);
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class ExportsInfo {
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constructor() {
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/** @type {Map<string, ExportInfo>} */
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this._exports = new Map();
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this._otherExportsInfo = new ExportInfo(null);
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this._sideEffectsOnlyInfo = new ExportInfo("*side effects only*");
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this._exportsAreOrdered = false;
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/** @type {ExportsInfo=} */
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this._redirectTo = undefined;
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}
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/**
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* @returns {Iterable<ExportInfo>} all owned exports in any order
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*/
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get ownedExports() {
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return this._exports.values();
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}
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/**
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* @returns {Iterable<ExportInfo>} all owned exports in order
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*/
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get orderedOwnedExports() {
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if (!this._exportsAreOrdered) {
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this._sortExports();
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}
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return this._exports.values();
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}
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/**
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* @returns {Iterable<ExportInfo>} all exports in any order
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*/
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get exports() {
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if (this._redirectTo !== undefined) {
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const map = new Map(this._redirectTo._exports);
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for (const [key, value] of this._exports) {
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map.set(key, value);
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}
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return map.values();
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}
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return this._exports.values();
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}
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/**
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* @returns {Iterable<ExportInfo>} all exports in order
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*/
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get orderedExports() {
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if (!this._exportsAreOrdered) {
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this._sortExports();
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}
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if (this._redirectTo !== undefined) {
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const map = new Map(
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Array.from(this._redirectTo.orderedExports, item => [item.name, item])
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);
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for (const [key, value] of this._exports) {
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map.set(key, value);
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}
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// sorting should be pretty fast as map contains
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// a lot of presorted items
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this._sortExportsMap(map);
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return map.values();
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}
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return this._exports.values();
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}
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/**
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* @returns {ExportInfo} the export info of unlisted exports
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*/
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get otherExportsInfo() {
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if (this._redirectTo !== undefined)
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return this._redirectTo.otherExportsInfo;
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return this._otherExportsInfo;
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}
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_sortExportsMap(exports) {
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if (exports.size > 1) {
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const namesInOrder = [];
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for (const entry of exports.values()) {
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namesInOrder.push(entry.name);
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}
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namesInOrder.sort();
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let i = 0;
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for (const entry of exports.values()) {
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const name = namesInOrder[i];
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if (entry.name !== name) break;
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i++;
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}
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for (; i < namesInOrder.length; i++) {
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const name = namesInOrder[i];
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const correctEntry = exports.get(name);
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exports.delete(name);
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exports.set(name, correctEntry);
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}
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}
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}
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_sortExports() {
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this._sortExportsMap(this._exports);
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this._exportsAreOrdered = true;
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}
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setRedirectNamedTo(exportsInfo) {
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if (this._redirectTo === exportsInfo) return false;
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this._redirectTo = exportsInfo;
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return true;
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}
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setHasProvideInfo() {
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for (const exportInfo of this._exports.values()) {
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if (exportInfo.provided === undefined) {
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exportInfo.provided = false;
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}
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if (exportInfo.canMangleProvide === undefined) {
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exportInfo.canMangleProvide = true;
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}
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}
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if (this._redirectTo !== undefined) {
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this._redirectTo.setHasProvideInfo();
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} else {
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if (this._otherExportsInfo.provided === undefined) {
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this._otherExportsInfo.provided = false;
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}
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if (this._otherExportsInfo.canMangleProvide === undefined) {
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this._otherExportsInfo.canMangleProvide = true;
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}
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}
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}
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setHasUseInfo() {
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for (const exportInfo of this._exports.values()) {
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exportInfo.setHasUseInfo();
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}
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this._sideEffectsOnlyInfo.setHasUseInfo();
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if (this._redirectTo !== undefined) {
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this._redirectTo.setHasUseInfo();
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} else {
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this._otherExportsInfo.setHasUseInfo();
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if (this._otherExportsInfo.canMangleUse === undefined) {
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this._otherExportsInfo.canMangleUse = true;
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}
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}
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}
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/**
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* @param {string} name export name
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* @returns {ExportInfo} export info for this name
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*/
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getOwnExportInfo(name) {
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const info = this._exports.get(name);
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if (info !== undefined) return info;
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const newInfo = new ExportInfo(name, this._otherExportsInfo);
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this._exports.set(name, newInfo);
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this._exportsAreOrdered = false;
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return newInfo;
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}
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/**
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* @param {string} name export name
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* @returns {ExportInfo} export info for this name
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*/
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getExportInfo(name) {
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const info = this._exports.get(name);
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if (info !== undefined) return info;
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if (this._redirectTo !== undefined)
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return this._redirectTo.getExportInfo(name);
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const newInfo = new ExportInfo(name, this._otherExportsInfo);
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this._exports.set(name, newInfo);
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this._exportsAreOrdered = false;
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return newInfo;
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}
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/**
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* @param {string} name export name
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* @returns {ExportInfo} export info for this name
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*/
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getReadOnlyExportInfo(name) {
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const info = this._exports.get(name);
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if (info !== undefined) return info;
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if (this._redirectTo !== undefined)
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return this._redirectTo.getReadOnlyExportInfo(name);
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return this._otherExportsInfo;
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}
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/**
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* @param {string[]} name export name
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* @returns {ExportInfo | undefined} export info for this name
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*/
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getReadOnlyExportInfoRecursive(name) {
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const exportInfo = this.getReadOnlyExportInfo(name[0]);
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if (name.length === 1) return exportInfo;
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if (!exportInfo.exportsInfo) return undefined;
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return exportInfo.exportsInfo.getReadOnlyExportInfoRecursive(name.slice(1));
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}
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/**
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* @param {string[]=} name the export name
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* @returns {ExportsInfo | undefined} the nested exports info
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*/
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getNestedExportsInfo(name) {
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if (Array.isArray(name) && name.length > 0) {
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const info = this.getReadOnlyExportInfo(name[0]);
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if (!info.exportsInfo) return undefined;
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return info.exportsInfo.getNestedExportsInfo(name.slice(1));
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}
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return this;
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}
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/**
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* @param {boolean=} canMangle true, if exports can still be mangled (defaults to false)
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* @param {Set<string>=} excludeExports list of unaffected exports
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* @param {any=} targetKey use this as key for the target
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* @param {ModuleGraphConnection=} targetModule set this module as target
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* @param {number=} priority priority
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* @returns {boolean} true, if this call changed something
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*/
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setUnknownExportsProvided(
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canMangle,
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excludeExports,
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targetKey,
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targetModule,
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priority
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) {
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let changed = false;
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if (excludeExports) {
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for (const name of excludeExports) {
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// Make sure these entries exist, so they can get different info
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this.getExportInfo(name);
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}
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}
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for (const exportInfo of this._exports.values()) {
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if (excludeExports && excludeExports.has(exportInfo.name)) continue;
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if (exportInfo.provided !== true && exportInfo.provided !== null) {
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exportInfo.provided = null;
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changed = true;
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}
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if (!canMangle && exportInfo.canMangleProvide !== false) {
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exportInfo.canMangleProvide = false;
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changed = true;
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}
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if (targetKey) {
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exportInfo.setTarget(targetKey, targetModule, [exportInfo.name], -1);
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}
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}
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if (this._redirectTo !== undefined) {
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if (
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this._redirectTo.setUnknownExportsProvided(
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canMangle,
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excludeExports,
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targetKey,
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targetModule,
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priority
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)
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) {
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changed = true;
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}
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} else {
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if (
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this._otherExportsInfo.provided !== true &&
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this._otherExportsInfo.provided !== null
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) {
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this._otherExportsInfo.provided = null;
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changed = true;
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}
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if (!canMangle && this._otherExportsInfo.canMangleProvide !== false) {
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this._otherExportsInfo.canMangleProvide = false;
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changed = true;
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}
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if (targetKey) {
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this._otherExportsInfo.setTarget(
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targetKey,
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targetModule,
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undefined,
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priority
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);
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}
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}
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return changed;
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}
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/**
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* @param {RuntimeSpec} runtime the runtime
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* @returns {boolean} true, when something changed
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*/
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setUsedInUnknownWay(runtime) {
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let changed = false;
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for (const exportInfo of this._exports.values()) {
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if (exportInfo.setUsedInUnknownWay(runtime)) {
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changed = true;
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}
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}
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if (this._redirectTo !== undefined) {
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if (this._redirectTo.setUsedInUnknownWay(runtime)) {
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changed = true;
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}
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} else {
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if (
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this._otherExportsInfo.setUsedConditionally(
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used => used < UsageState.Unknown,
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UsageState.Unknown,
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runtime
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)
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) {
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changed = true;
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}
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if (this._otherExportsInfo.canMangleUse !== false) {
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this._otherExportsInfo.canMangleUse = false;
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changed = true;
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}
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}
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return changed;
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}
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/**
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* @param {RuntimeSpec} runtime the runtime
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* @returns {boolean} true, when something changed
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*/
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setUsedWithoutInfo(runtime) {
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let changed = false;
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for (const exportInfo of this._exports.values()) {
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if (exportInfo.setUsedWithoutInfo(runtime)) {
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changed = true;
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}
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}
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if (this._redirectTo !== undefined) {
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if (this._redirectTo.setUsedWithoutInfo(runtime)) {
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changed = true;
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}
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} else {
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if (this._otherExportsInfo.setUsed(UsageState.NoInfo, runtime)) {
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changed = true;
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}
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if (this._otherExportsInfo.canMangleUse !== false) {
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this._otherExportsInfo.canMangleUse = false;
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changed = true;
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}
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}
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return changed;
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}
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/**
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* @param {RuntimeSpec} runtime the runtime
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* @returns {boolean} true, when something changed
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*/
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setAllKnownExportsUsed(runtime) {
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let changed = false;
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for (const exportInfo of this._exports.values()) {
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if (!exportInfo.provided) continue;
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if (exportInfo.setUsed(UsageState.Used, runtime)) {
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changed = true;
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}
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}
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return changed;
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}
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/**
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* @param {RuntimeSpec} runtime the runtime
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* @returns {boolean} true, when something changed
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*/
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setUsedForSideEffectsOnly(runtime) {
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return this._sideEffectsOnlyInfo.setUsedConditionally(
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used => used === UsageState.Unused,
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UsageState.Used,
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runtime
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);
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}
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/**
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* @param {RuntimeSpec} runtime the runtime
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* @returns {boolean} true, when the module exports are used in any way
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*/
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isUsed(runtime) {
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if (this._redirectTo !== undefined) {
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if (this._redirectTo.isUsed(runtime)) {
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return true;
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}
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} else {
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if (this._otherExportsInfo.getUsed(runtime) !== UsageState.Unused) {
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return true;
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}
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}
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for (const exportInfo of this._exports.values()) {
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if (exportInfo.getUsed(runtime) !== UsageState.Unused) {
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return true;
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}
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}
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return false;
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}
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/**
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* @param {RuntimeSpec} runtime the runtime
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* @returns {boolean} true, when the module is used in any way
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*/
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isModuleUsed(runtime) {
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if (this.isUsed(runtime)) return true;
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if (this._sideEffectsOnlyInfo.getUsed(runtime) !== UsageState.Unused)
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return true;
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return false;
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}
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|
|
/**
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* @param {RuntimeSpec} runtime the runtime
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* @returns {SortableSet<string> | boolean | null} set of used exports, or true (when namespace object is used), or false (when unused), or null (when unknown)
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*/
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getUsedExports(runtime) {
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if (!this._redirectTo !== undefined) {
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switch (this._otherExportsInfo.getUsed(runtime)) {
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case UsageState.NoInfo:
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return null;
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case UsageState.Unknown:
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case UsageState.OnlyPropertiesUsed:
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case UsageState.Used:
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return true;
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}
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}
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const array = [];
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if (!this._exportsAreOrdered) this._sortExports();
|
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for (const exportInfo of this._exports.values()) {
|
|
switch (exportInfo.getUsed(runtime)) {
|
|
case UsageState.NoInfo:
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return null;
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case UsageState.Unknown:
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return true;
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case UsageState.OnlyPropertiesUsed:
|
|
case UsageState.Used:
|
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array.push(exportInfo.name);
|
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}
|
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}
|
|
if (this._redirectTo !== undefined) {
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const inner = this._redirectTo.getUsedExports(runtime);
|
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if (inner === null) return null;
|
|
if (inner === true) return true;
|
|
if (inner !== false) {
|
|
for (const item of inner) {
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array.push(item);
|
|
}
|
|
}
|
|
}
|
|
if (array.length === 0) {
|
|
switch (this._sideEffectsOnlyInfo.getUsed(runtime)) {
|
|
case UsageState.NoInfo:
|
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return null;
|
|
case UsageState.Unused:
|
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return false;
|
|
}
|
|
}
|
|
return new SortableSet(array);
|
|
}
|
|
|
|
/**
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|
* @returns {null | true | string[]} list of exports when known
|
|
*/
|
|
getProvidedExports() {
|
|
if (!this._redirectTo !== undefined) {
|
|
switch (this._otherExportsInfo.provided) {
|
|
case undefined:
|
|
return null;
|
|
case null:
|
|
return true;
|
|
case true:
|
|
return true;
|
|
}
|
|
}
|
|
const array = [];
|
|
if (!this._exportsAreOrdered) this._sortExports();
|
|
for (const exportInfo of this._exports.values()) {
|
|
switch (exportInfo.provided) {
|
|
case undefined:
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return null;
|
|
case null:
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return true;
|
|
case true:
|
|
array.push(exportInfo.name);
|
|
}
|
|
}
|
|
if (this._redirectTo !== undefined) {
|
|
const inner = this._redirectTo.getProvidedExports();
|
|
if (inner === null) return null;
|
|
if (inner === true) return true;
|
|
for (const item of inner) {
|
|
if (!array.includes(item)) {
|
|
array.push(item);
|
|
}
|
|
}
|
|
}
|
|
return array;
|
|
}
|
|
|
|
/**
|
|
* @param {RuntimeSpec} runtime the runtime
|
|
* @returns {ExportInfo[]} exports that are relevant (not unused and potential provided)
|
|
*/
|
|
getRelevantExports(runtime) {
|
|
const list = [];
|
|
for (const exportInfo of this._exports.values()) {
|
|
const used = exportInfo.getUsed(runtime);
|
|
if (used === UsageState.Unused) continue;
|
|
if (exportInfo.provided === false) continue;
|
|
list.push(exportInfo);
|
|
}
|
|
if (this._redirectTo !== undefined) {
|
|
for (const exportInfo of this._redirectTo.getRelevantExports(runtime)) {
|
|
if (!this._exports.has(exportInfo.name)) list.push(exportInfo);
|
|
}
|
|
}
|
|
if (
|
|
this._otherExportsInfo.provided !== false &&
|
|
this._otherExportsInfo.getUsed(runtime) !== UsageState.Unused
|
|
) {
|
|
list.push(this._otherExportsInfo);
|
|
}
|
|
return list;
|
|
}
|
|
|
|
/**
|
|
* @param {string | string[]} name the name of the export
|
|
* @returns {boolean | undefined | null} if the export is provided
|
|
*/
|
|
isExportProvided(name) {
|
|
if (Array.isArray(name)) {
|
|
const info = this.getReadOnlyExportInfo(name[0]);
|
|
if (info.exportsInfo && name.length > 1) {
|
|
return info.exportsInfo.isExportProvided(name.slice(1));
|
|
}
|
|
return info.provided;
|
|
}
|
|
const info = this.getReadOnlyExportInfo(name);
|
|
return info.provided;
|
|
}
|
|
|
|
/**
|
|
* @param {RuntimeSpec} runtime runtime
|
|
* @returns {string} key representing the usage
|
|
*/
|
|
getUsageKey(runtime) {
|
|
const key = [];
|
|
if (this._redirectTo !== undefined) {
|
|
key.push(this._redirectTo.getUsageKey(runtime));
|
|
} else {
|
|
key.push(this._otherExportsInfo.getUsed(runtime));
|
|
}
|
|
key.push(this._sideEffectsOnlyInfo.getUsed(runtime));
|
|
for (const exportInfo of this.orderedOwnedExports) {
|
|
key.push(exportInfo.getUsed(runtime));
|
|
}
|
|
return key.join("|");
|
|
}
|
|
|
|
/**
|
|
* @param {RuntimeSpec} runtimeA first runtime
|
|
* @param {RuntimeSpec} runtimeB second runtime
|
|
* @returns {boolean} true, when equally used
|
|
*/
|
|
isEquallyUsed(runtimeA, runtimeB) {
|
|
if (this._redirectTo !== undefined) {
|
|
if (!this._redirectTo.isEquallyUsed(runtimeA, runtimeB)) return false;
|
|
} else {
|
|
if (
|
|
this._otherExportsInfo.getUsed(runtimeA) !==
|
|
this._otherExportsInfo.getUsed(runtimeB)
|
|
) {
|
|
return false;
|
|
}
|
|
}
|
|
if (
|
|
this._sideEffectsOnlyInfo.getUsed(runtimeA) !==
|
|
this._sideEffectsOnlyInfo.getUsed(runtimeB)
|
|
) {
|
|
return false;
|
|
}
|
|
for (const exportInfo of this.ownedExports) {
|
|
if (exportInfo.getUsed(runtimeA) !== exportInfo.getUsed(runtimeB))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param {string | string[]} name export name
|
|
* @param {RuntimeSpec} runtime check usage for this runtime only
|
|
* @returns {UsageStateType} usage status
|
|
*/
|
|
getUsed(name, runtime) {
|
|
if (Array.isArray(name)) {
|
|
if (name.length === 0) return this.otherExportsInfo.getUsed(runtime);
|
|
let info = this.getReadOnlyExportInfo(name[0]);
|
|
if (info.exportsInfo && name.length > 1) {
|
|
return info.exportsInfo.getUsed(name.slice(1), runtime);
|
|
}
|
|
return info.getUsed(runtime);
|
|
}
|
|
let info = this.getReadOnlyExportInfo(name);
|
|
return info.getUsed(runtime);
|
|
}
|
|
|
|
/**
|
|
* @param {string | string[]} name the export name
|
|
* @param {RuntimeSpec} runtime check usage for this runtime only
|
|
* @returns {string | string[] | false} the used name
|
|
*/
|
|
getUsedName(name, runtime) {
|
|
if (Array.isArray(name)) {
|
|
// TODO improve this
|
|
if (name.length === 0) {
|
|
if (!this.isUsed(runtime)) return false;
|
|
return name;
|
|
}
|
|
let info = this.getReadOnlyExportInfo(name[0]);
|
|
const x = info.getUsedName(name[0], runtime);
|
|
if (x === false) return false;
|
|
const arr = x === name[0] && name.length === 1 ? name : [x];
|
|
if (name.length === 1) {
|
|
return arr;
|
|
}
|
|
if (
|
|
info.exportsInfo &&
|
|
info.getUsed(runtime) === UsageState.OnlyPropertiesUsed
|
|
) {
|
|
const nested = info.exportsInfo.getUsedName(name.slice(1), runtime);
|
|
if (!nested) return false;
|
|
return arr.concat(nested);
|
|
} else {
|
|
return arr.concat(name.slice(1));
|
|
}
|
|
} else {
|
|
let info = this.getReadOnlyExportInfo(name);
|
|
const usedName = info.getUsedName(name, runtime);
|
|
return usedName;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {Hash} hash the hash
|
|
* @param {RuntimeSpec} runtime the runtime
|
|
* @returns {void}
|
|
*/
|
|
updateHash(hash, runtime) {
|
|
this._updateHash(hash, runtime, new Set());
|
|
}
|
|
|
|
/**
|
|
* @param {Hash} hash the hash
|
|
* @param {RuntimeSpec} runtime the runtime
|
|
* @param {Set<ExportsInfo>} alreadyVisitedExportsInfo for circular references
|
|
* @returns {void}
|
|
*/
|
|
_updateHash(hash, runtime, alreadyVisitedExportsInfo) {
|
|
const set = new Set(alreadyVisitedExportsInfo);
|
|
set.add(this);
|
|
for (const exportInfo of this.orderedExports) {
|
|
if (exportInfo.hasInfo(this._otherExportsInfo, runtime)) {
|
|
exportInfo._updateHash(hash, runtime, set);
|
|
}
|
|
}
|
|
this._sideEffectsOnlyInfo._updateHash(hash, runtime, set);
|
|
this._otherExportsInfo._updateHash(hash, runtime, set);
|
|
if (this._redirectTo !== undefined) {
|
|
this._redirectTo._updateHash(hash, runtime, set);
|
|
}
|
|
}
|
|
|
|
getRestoreProvidedData() {
|
|
const otherProvided = this._otherExportsInfo.provided;
|
|
const otherCanMangleProvide = this._otherExportsInfo.canMangleProvide;
|
|
const otherTerminalBinding = this._otherExportsInfo.terminalBinding;
|
|
const exports = [];
|
|
for (const exportInfo of this.orderedExports) {
|
|
if (
|
|
exportInfo.provided !== otherProvided ||
|
|
exportInfo.canMangleProvide !== otherCanMangleProvide ||
|
|
exportInfo.terminalBinding !== otherTerminalBinding ||
|
|
exportInfo.exportsInfoOwned
|
|
) {
|
|
exports.push({
|
|
name: exportInfo.name,
|
|
provided: exportInfo.provided,
|
|
canMangleProvide: exportInfo.canMangleProvide,
|
|
terminalBinding: exportInfo.terminalBinding,
|
|
exportsInfo: exportInfo.exportsInfoOwned
|
|
? exportInfo.exportsInfo.getRestoreProvidedData()
|
|
: undefined
|
|
});
|
|
}
|
|
}
|
|
return new RestoreProvidedData(
|
|
exports,
|
|
otherProvided,
|
|
otherCanMangleProvide,
|
|
otherTerminalBinding
|
|
);
|
|
}
|
|
|
|
restoreProvided({
|
|
otherProvided,
|
|
otherCanMangleProvide,
|
|
otherTerminalBinding,
|
|
exports
|
|
}) {
|
|
let wasEmpty = true;
|
|
for (const exportInfo of this._exports.values()) {
|
|
wasEmpty = false;
|
|
exportInfo.provided = otherProvided;
|
|
exportInfo.canMangleProvide = otherCanMangleProvide;
|
|
exportInfo.terminalBinding = otherTerminalBinding;
|
|
}
|
|
this._otherExportsInfo.provided = otherProvided;
|
|
this._otherExportsInfo.canMangleProvide = otherCanMangleProvide;
|
|
this._otherExportsInfo.terminalBinding = otherTerminalBinding;
|
|
for (const exp of exports) {
|
|
const exportInfo = this.getExportInfo(exp.name);
|
|
exportInfo.provided = exp.provided;
|
|
exportInfo.canMangleProvide = exp.canMangleProvide;
|
|
exportInfo.terminalBinding = exp.terminalBinding;
|
|
if (exp.exportsInfo) {
|
|
const exportsInfo = exportInfo.createNestedExportsInfo();
|
|
exportsInfo.restoreProvided(exp.exportsInfo);
|
|
}
|
|
}
|
|
if (wasEmpty) this._exportsAreOrdered = true;
|
|
}
|
|
}
|
|
|
|
class ExportInfo {
|
|
/**
|
|
* @param {string} name the original name of the export
|
|
* @param {ExportInfo=} initFrom init values from this ExportInfo
|
|
*/
|
|
constructor(name, initFrom) {
|
|
/** @type {string} */
|
|
this.name = name;
|
|
/** @private @type {string | null} */
|
|
this._usedName = initFrom ? initFrom._usedName : null;
|
|
/** @private @type {UsageStateType} */
|
|
this._globalUsed = initFrom ? initFrom._globalUsed : undefined;
|
|
/** @private @type {Map<string, RuntimeUsageStateType>} */
|
|
this._usedInRuntime =
|
|
initFrom && initFrom._usedInRuntime
|
|
? new Map(initFrom._usedInRuntime)
|
|
: undefined;
|
|
/** @private @type {boolean} */
|
|
this._hasUseInRuntimeInfo = initFrom
|
|
? initFrom._hasUseInRuntimeInfo
|
|
: false;
|
|
/**
|
|
* true: it is provided
|
|
* false: it is not provided
|
|
* null: only the runtime knows if it is provided
|
|
* undefined: it was not determined if it is provided
|
|
* @type {boolean | null | undefined}
|
|
*/
|
|
this.provided = initFrom ? initFrom.provided : undefined;
|
|
/**
|
|
* is the export a terminal binding that should be checked for export star conflicts
|
|
* @type {boolean}
|
|
*/
|
|
this.terminalBinding = initFrom ? initFrom.terminalBinding : false;
|
|
/**
|
|
* true: it can be mangled
|
|
* false: is can not be mangled
|
|
* undefined: it was not determined if it can be mangled
|
|
* @type {boolean | undefined}
|
|
*/
|
|
this.canMangleProvide = initFrom ? initFrom.canMangleProvide : undefined;
|
|
/**
|
|
* true: it can be mangled
|
|
* false: is can not be mangled
|
|
* undefined: it was not determined if it can be mangled
|
|
* @type {boolean | undefined}
|
|
*/
|
|
this.canMangleUse = initFrom ? initFrom.canMangleUse : undefined;
|
|
/** @type {boolean} */
|
|
this.exportsInfoOwned = false;
|
|
/** @type {ExportsInfo=} */
|
|
this.exportsInfo = undefined;
|
|
/** @type {Map<any, { connection: ModuleGraphConnection | null, export: string[], priority: number }>=} */
|
|
this._target = undefined;
|
|
if (initFrom && initFrom._target) {
|
|
this._target = new Map();
|
|
for (const [key, value] of initFrom._target) {
|
|
this._target.set(key, {
|
|
connection: value.connection,
|
|
export: value.export || [name],
|
|
priority: value.priority
|
|
});
|
|
}
|
|
}
|
|
/** @type {Map<any, { connection: ModuleGraphConnection | null, export: string[], priority: number }>=} */
|
|
this._maxTarget = undefined;
|
|
}
|
|
|
|
// TODO webpack 5 remove
|
|
/** @private */
|
|
get used() {
|
|
throw new Error("REMOVED");
|
|
}
|
|
/** @private */
|
|
get usedName() {
|
|
throw new Error("REMOVED");
|
|
}
|
|
/**
|
|
* @private
|
|
* @param {*} v v
|
|
*/
|
|
set used(v) {
|
|
throw new Error("REMOVED");
|
|
}
|
|
/**
|
|
* @private
|
|
* @param {*} v v
|
|
*/
|
|
set usedName(v) {
|
|
throw new Error("REMOVED");
|
|
}
|
|
|
|
get canMangle() {
|
|
switch (this.canMangleProvide) {
|
|
case undefined:
|
|
return this.canMangleUse === false ? false : undefined;
|
|
case false:
|
|
return false;
|
|
case true:
|
|
switch (this.canMangleUse) {
|
|
case undefined:
|
|
return undefined;
|
|
case false:
|
|
return false;
|
|
case true:
|
|
return true;
|
|
}
|
|
}
|
|
throw new Error(
|
|
`Unexpected flags for canMangle ${this.canMangleProvide} ${this.canMangleUse}`
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param {RuntimeSpec} runtime only apply to this runtime
|
|
* @returns {boolean} true, when something changed
|
|
*/
|
|
setUsedInUnknownWay(runtime) {
|
|
let changed = false;
|
|
if (
|
|
this.setUsedConditionally(
|
|
used => used < UsageState.Unknown,
|
|
UsageState.Unknown,
|
|
runtime
|
|
)
|
|
) {
|
|
changed = true;
|
|
}
|
|
if (this.canMangleUse !== false) {
|
|
this.canMangleUse = false;
|
|
changed = true;
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
/**
|
|
* @param {RuntimeSpec} runtime only apply to this runtime
|
|
* @returns {boolean} true, when something changed
|
|
*/
|
|
setUsedWithoutInfo(runtime) {
|
|
let changed = false;
|
|
if (this.setUsed(UsageState.NoInfo, runtime)) {
|
|
changed = true;
|
|
}
|
|
if (this.canMangleUse !== false) {
|
|
this.canMangleUse = false;
|
|
changed = true;
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
setHasUseInfo() {
|
|
if (!this._hasUseInRuntimeInfo) {
|
|
this._hasUseInRuntimeInfo = true;
|
|
}
|
|
if (this.canMangleUse === undefined) {
|
|
this.canMangleUse = true;
|
|
}
|
|
if (this.exportsInfoOwned) {
|
|
this.exportsInfo.setHasUseInfo();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {function(UsageStateType): boolean} condition compare with old value
|
|
* @param {UsageStateType} newValue set when condition is true
|
|
* @param {RuntimeSpec} runtime only apply to this runtime
|
|
* @returns {boolean} true when something has changed
|
|
*/
|
|
setUsedConditionally(condition, newValue, runtime) {
|
|
if (runtime === undefined) {
|
|
if (this._globalUsed === undefined) {
|
|
this._globalUsed = newValue;
|
|
return true;
|
|
} else {
|
|
if (this._globalUsed !== newValue && condition(this._globalUsed)) {
|
|
this._globalUsed = newValue;
|
|
return true;
|
|
}
|
|
}
|
|
} else if (this._usedInRuntime === undefined) {
|
|
if (newValue !== UsageState.Unused && condition(UsageState.Unused)) {
|
|
this._usedInRuntime = new Map();
|
|
forEachRuntime(runtime, runtime =>
|
|
this._usedInRuntime.set(runtime, newValue)
|
|
);
|
|
return true;
|
|
}
|
|
} else {
|
|
let changed = false;
|
|
forEachRuntime(runtime, runtime => {
|
|
/** @type {UsageStateType} */
|
|
let oldValue = this._usedInRuntime.get(runtime);
|
|
if (oldValue === undefined) oldValue = UsageState.Unused;
|
|
if (newValue !== oldValue && condition(oldValue)) {
|
|
if (newValue === UsageState.Unused) {
|
|
this._usedInRuntime.delete(runtime);
|
|
} else {
|
|
this._usedInRuntime.set(runtime, newValue);
|
|
}
|
|
changed = true;
|
|
}
|
|
});
|
|
if (changed) {
|
|
if (this._usedInRuntime.size === 0) this._usedInRuntime = undefined;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @param {UsageStateType} newValue new value of the used state
|
|
* @param {RuntimeSpec} runtime only apply to this runtime
|
|
* @returns {boolean} true when something has changed
|
|
*/
|
|
setUsed(newValue, runtime) {
|
|
if (runtime === undefined) {
|
|
if (this._globalUsed !== newValue) {
|
|
this._globalUsed = newValue;
|
|
return true;
|
|
}
|
|
} else if (this._usedInRuntime === undefined) {
|
|
if (newValue !== UsageState.Unused) {
|
|
this._usedInRuntime = new Map();
|
|
forEachRuntime(runtime, runtime =>
|
|
this._usedInRuntime.set(runtime, newValue)
|
|
);
|
|
return true;
|
|
}
|
|
} else {
|
|
let changed = false;
|
|
forEachRuntime(runtime, runtime => {
|
|
/** @type {UsageStateType} */
|
|
let oldValue = this._usedInRuntime.get(runtime);
|
|
if (oldValue === undefined) oldValue = UsageState.Unused;
|
|
if (newValue !== oldValue) {
|
|
if (newValue === UsageState.Unused) {
|
|
this._usedInRuntime.delete(runtime);
|
|
} else {
|
|
this._usedInRuntime.set(runtime, newValue);
|
|
}
|
|
changed = true;
|
|
}
|
|
});
|
|
if (changed) {
|
|
if (this._usedInRuntime.size === 0) this._usedInRuntime = undefined;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @param {any} key the key
|
|
* @returns {boolean} true, if something has changed
|
|
*/
|
|
unsetTarget(key) {
|
|
if (!this._target) return false;
|
|
if (this._target.delete(key)) {
|
|
this._maxTarget = undefined;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @param {any} key the key
|
|
* @param {ModuleGraphConnection} connection the target module if a single one
|
|
* @param {string[]=} exportName the exported name
|
|
* @param {number=} priority priority
|
|
* @returns {boolean} true, if something has changed
|
|
*/
|
|
setTarget(key, connection, exportName, priority = 0) {
|
|
if (exportName) exportName = [...exportName];
|
|
if (!this._target) {
|
|
this._target = new Map();
|
|
this._target.set(key, { connection, export: exportName, priority });
|
|
return true;
|
|
}
|
|
const oldTarget = this._target.get(key);
|
|
if (!oldTarget) {
|
|
if (oldTarget === null && !connection) return false;
|
|
this._target.set(key, { connection, export: exportName, priority });
|
|
this._maxTarget = undefined;
|
|
return true;
|
|
}
|
|
if (
|
|
oldTarget.connection !== connection ||
|
|
oldTarget.priority !== priority ||
|
|
(exportName
|
|
? !oldTarget.export || !equals(oldTarget.export, exportName)
|
|
: oldTarget.export)
|
|
) {
|
|
oldTarget.connection = connection;
|
|
oldTarget.export = exportName;
|
|
oldTarget.priority = priority;
|
|
this._maxTarget = undefined;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @param {RuntimeSpec} runtime for this runtime
|
|
* @returns {UsageStateType} usage state
|
|
*/
|
|
getUsed(runtime) {
|
|
if (!this._hasUseInRuntimeInfo) return UsageState.NoInfo;
|
|
if (this._globalUsed !== undefined) return this._globalUsed;
|
|
if (this._usedInRuntime === undefined) {
|
|
return UsageState.Unused;
|
|
} else if (typeof runtime === "string") {
|
|
const value = this._usedInRuntime.get(runtime);
|
|
return value === undefined ? UsageState.Unused : value;
|
|
} else if (runtime === undefined) {
|
|
/** @type {UsageStateType} */
|
|
let max = UsageState.Unused;
|
|
for (const value of this._usedInRuntime.values()) {
|
|
if (value === UsageState.Used) {
|
|
return UsageState.Used;
|
|
}
|
|
if (max < value) max = value;
|
|
}
|
|
return max;
|
|
} else {
|
|
/** @type {UsageStateType} */
|
|
let max = UsageState.Unused;
|
|
for (const item of runtime) {
|
|
const value = this._usedInRuntime.get(item);
|
|
if (value !== undefined) {
|
|
if (value === UsageState.Used) {
|
|
return UsageState.Used;
|
|
}
|
|
if (max < value) max = value;
|
|
}
|
|
}
|
|
return max;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* get used name
|
|
* @param {string | undefined} fallbackName fallback name for used exports with no name
|
|
* @param {RuntimeSpec} runtime check usage for this runtime only
|
|
* @returns {string | false} used name
|
|
*/
|
|
getUsedName(fallbackName, runtime) {
|
|
if (this._hasUseInRuntimeInfo) {
|
|
if (this._globalUsed !== undefined) {
|
|
if (this._globalUsed === UsageState.Unused) return false;
|
|
} else {
|
|
if (this._usedInRuntime === undefined) return false;
|
|
if (typeof runtime === "string") {
|
|
if (!this._usedInRuntime.has(runtime)) {
|
|
return false;
|
|
}
|
|
} else if (runtime !== undefined) {
|
|
if (
|
|
Array.from(runtime).every(
|
|
runtime => !this._usedInRuntime.has(runtime)
|
|
)
|
|
) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (this._usedName !== null) return this._usedName;
|
|
return this.name || fallbackName;
|
|
}
|
|
|
|
/**
|
|
* @returns {boolean} true, when a mangled name of this export is set
|
|
*/
|
|
hasUsedName() {
|
|
return this._usedName !== null;
|
|
}
|
|
|
|
/**
|
|
* Sets the mangled name of this export
|
|
* @param {string} name the new name
|
|
* @returns {void}
|
|
*/
|
|
setUsedName(name) {
|
|
this._usedName = name;
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {function({ module: Module, export: string[] | undefined }): boolean} resolveTargetFilter filter function to further resolve target
|
|
* @returns {ExportInfo | ExportsInfo | undefined} the terminal binding export(s) info if known
|
|
*/
|
|
getTerminalBinding(moduleGraph, resolveTargetFilter = RETURNS_TRUE) {
|
|
if (this.terminalBinding) return this;
|
|
const target = this.getTarget(moduleGraph, resolveTargetFilter);
|
|
if (!target) return undefined;
|
|
const exportsInfo = moduleGraph.getExportsInfo(target.module);
|
|
if (!target.export) return exportsInfo;
|
|
return exportsInfo.getReadOnlyExportInfoRecursive(target.export);
|
|
}
|
|
|
|
isReexport() {
|
|
return !this.terminalBinding && this._target && this._target.size > 0;
|
|
}
|
|
|
|
_getMaxTarget() {
|
|
if (this._maxTarget !== undefined) return this._maxTarget;
|
|
if (this._target.size <= 1) return (this._maxTarget = this._target);
|
|
let maxPriority = -Infinity;
|
|
let minPriority = Infinity;
|
|
for (const { priority } of this._target.values()) {
|
|
if (maxPriority < priority) maxPriority = priority;
|
|
if (minPriority > priority) minPriority = priority;
|
|
}
|
|
// This should be very common
|
|
if (maxPriority === minPriority) return (this._maxTarget = this._target);
|
|
|
|
// This is an edge case
|
|
const map = new Map();
|
|
for (const [key, value] of this._target) {
|
|
if (maxPriority === value.priority) {
|
|
map.set(key, value);
|
|
}
|
|
}
|
|
this._maxTarget = map;
|
|
return map;
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {function(Module): boolean} validTargetModuleFilter a valid target module
|
|
* @returns {{ module: Module, export: string[] | undefined } | undefined | false} the target, undefined when there is no target, false when no target is valid
|
|
*/
|
|
findTarget(moduleGraph, validTargetModuleFilter) {
|
|
return this._findTarget(moduleGraph, validTargetModuleFilter, new Set());
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {function(Module): boolean} validTargetModuleFilter a valid target module
|
|
* @param {Set<ExportInfo> | undefined} alreadyVisited set of already visited export info to avoid circular references
|
|
* @returns {{ module: Module, export: string[] | undefined } | undefined | false} the target, undefined when there is no target, false when no target is valid
|
|
*/
|
|
_findTarget(moduleGraph, validTargetModuleFilter, alreadyVisited) {
|
|
if (!this._target || this._target.size === 0) return undefined;
|
|
let rawTarget = this._getMaxTarget().values().next().value;
|
|
if (!rawTarget) return undefined;
|
|
/** @type {{ module: Module, export: string[] | undefined }} */
|
|
let target = {
|
|
module: rawTarget.connection.module,
|
|
export: rawTarget.export
|
|
};
|
|
for (;;) {
|
|
if (validTargetModuleFilter(target.module)) return target;
|
|
const exportsInfo = moduleGraph.getExportsInfo(target.module);
|
|
const exportInfo = exportsInfo.getExportInfo(target.export[0]);
|
|
if (alreadyVisited.has(exportInfo)) return null;
|
|
const newTarget = exportInfo._findTarget(
|
|
moduleGraph,
|
|
validTargetModuleFilter,
|
|
alreadyVisited
|
|
);
|
|
if (!newTarget) return false;
|
|
if (target.export.length === 1) {
|
|
target = newTarget;
|
|
} else {
|
|
target = {
|
|
module: newTarget.module,
|
|
export: newTarget.export
|
|
? newTarget.export.concat(target.export.slice(1))
|
|
: target.export.slice(1)
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {function({ module: Module, export: string[] | undefined }): boolean} resolveTargetFilter filter function to further resolve target
|
|
* @returns {{ module: Module, export: string[] | undefined } | undefined} the target
|
|
*/
|
|
getTarget(moduleGraph, resolveTargetFilter = RETURNS_TRUE) {
|
|
const result = this._getTarget(moduleGraph, resolveTargetFilter, undefined);
|
|
if (result === CIRCULAR) return undefined;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {function({ module: Module, connection: ModuleGraphConnection, export: string[] | undefined }): boolean} resolveTargetFilter filter function to further resolve target
|
|
* @param {Set<ExportInfo> | undefined} alreadyVisited set of already visited export info to avoid circular references
|
|
* @returns {{ module: Module, connection: ModuleGraphConnection, export: string[] | undefined } | CIRCULAR | undefined} the target
|
|
*/
|
|
_getTarget(moduleGraph, resolveTargetFilter, alreadyVisited) {
|
|
/**
|
|
* @param {{ connection: ModuleGraphConnection, export: string[] | undefined } | null} inputTarget unresolved target
|
|
* @param {Set<ExportInfo>} alreadyVisited set of already visited export info to avoid circular references
|
|
* @returns {{ module: Module, connection: ModuleGraphConnection, export: string[] | undefined } | CIRCULAR | null} resolved target
|
|
*/
|
|
const resolveTarget = (inputTarget, alreadyVisited) => {
|
|
if (!inputTarget) return null;
|
|
if (!inputTarget.export) {
|
|
return {
|
|
module: inputTarget.connection.module,
|
|
connection: inputTarget.connection,
|
|
export: undefined
|
|
};
|
|
}
|
|
/** @type {{ module: Module, connection: ModuleGraphConnection, export: string[] | undefined }} */
|
|
let target = {
|
|
module: inputTarget.connection.module,
|
|
connection: inputTarget.connection,
|
|
export: inputTarget.export
|
|
};
|
|
if (!resolveTargetFilter(target)) return target;
|
|
let alreadyVisitedOwned = false;
|
|
for (;;) {
|
|
const exportsInfo = moduleGraph.getExportsInfo(target.module);
|
|
const exportInfo = exportsInfo.getExportInfo(target.export[0]);
|
|
if (!exportInfo) return target;
|
|
if (alreadyVisited.has(exportInfo)) return CIRCULAR;
|
|
const newTarget = exportInfo._getTarget(
|
|
moduleGraph,
|
|
resolveTargetFilter,
|
|
alreadyVisited
|
|
);
|
|
if (newTarget === CIRCULAR) return CIRCULAR;
|
|
if (!newTarget) return target;
|
|
if (target.export.length === 1) {
|
|
target = newTarget;
|
|
if (!target.export) return target;
|
|
} else {
|
|
target = {
|
|
module: newTarget.module,
|
|
connection: newTarget.connection,
|
|
export: newTarget.export
|
|
? newTarget.export.concat(target.export.slice(1))
|
|
: target.export.slice(1)
|
|
};
|
|
}
|
|
if (!resolveTargetFilter(target)) return target;
|
|
if (!alreadyVisitedOwned) {
|
|
alreadyVisited = new Set(alreadyVisited);
|
|
alreadyVisitedOwned = true;
|
|
}
|
|
alreadyVisited.add(exportInfo);
|
|
}
|
|
};
|
|
|
|
if (!this._target || this._target.size === 0) return undefined;
|
|
if (alreadyVisited && alreadyVisited.has(this)) return CIRCULAR;
|
|
const newAlreadyVisited = new Set(alreadyVisited);
|
|
newAlreadyVisited.add(this);
|
|
const values = this._getMaxTarget().values();
|
|
const target = resolveTarget(values.next().value, newAlreadyVisited);
|
|
if (target === CIRCULAR) return CIRCULAR;
|
|
if (target === null) return undefined;
|
|
let result = values.next();
|
|
while (!result.done) {
|
|
const t = resolveTarget(result.value, newAlreadyVisited);
|
|
if (t === CIRCULAR) return CIRCULAR;
|
|
if (t === null) return undefined;
|
|
if (t.module !== target.module) return undefined;
|
|
if (!t.export !== !target.export) return undefined;
|
|
if (target.export && !equals(t.export, target.export)) return undefined;
|
|
result = values.next();
|
|
}
|
|
return target;
|
|
}
|
|
|
|
/**
|
|
* Move the target forward as long resolveTargetFilter is fulfilled
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {function({ module: Module, export: string[] | undefined }): boolean} resolveTargetFilter filter function to further resolve target
|
|
* @param {function({ module: Module, export: string[] | undefined }): ModuleGraphConnection=} updateOriginalConnection updates the original connection instead of using the target connection
|
|
* @returns {{ module: Module, export: string[] | undefined } | undefined} the resolved target when moved
|
|
*/
|
|
moveTarget(moduleGraph, resolveTargetFilter, updateOriginalConnection) {
|
|
const target = this._getTarget(moduleGraph, resolveTargetFilter, undefined);
|
|
if (target === CIRCULAR) return undefined;
|
|
if (!target) return undefined;
|
|
const originalTarget = this._getMaxTarget().values().next().value;
|
|
if (
|
|
originalTarget.connection === target.connection &&
|
|
originalTarget.export === target.export
|
|
) {
|
|
return undefined;
|
|
}
|
|
this._target.clear();
|
|
this._target.set(undefined, {
|
|
connection: updateOriginalConnection
|
|
? updateOriginalConnection(target)
|
|
: target.connection,
|
|
export: target.export,
|
|
priority: 0
|
|
});
|
|
return target;
|
|
}
|
|
|
|
createNestedExportsInfo() {
|
|
if (this.exportsInfoOwned) return this.exportsInfo;
|
|
this.exportsInfoOwned = true;
|
|
const oldExportsInfo = this.exportsInfo;
|
|
this.exportsInfo = new ExportsInfo();
|
|
this.exportsInfo.setHasProvideInfo();
|
|
if (oldExportsInfo) {
|
|
this.exportsInfo.setRedirectNamedTo(oldExportsInfo);
|
|
}
|
|
return this.exportsInfo;
|
|
}
|
|
|
|
getNestedExportsInfo() {
|
|
return this.exportsInfo;
|
|
}
|
|
|
|
hasInfo(baseInfo, runtime) {
|
|
return (
|
|
(this._usedName && this._usedName !== this.name) ||
|
|
this.provided ||
|
|
this.terminalBinding ||
|
|
this.getUsed(runtime) !== baseInfo.getUsed(runtime)
|
|
);
|
|
}
|
|
|
|
updateHash(hash, runtime) {
|
|
this._updateHash(hash, runtime, new Set());
|
|
}
|
|
|
|
_updateHash(hash, runtime, alreadyVisitedExportsInfo) {
|
|
hash.update(`${this._usedName || this.name}`);
|
|
hash.update(`${this.getUsed(runtime)}`);
|
|
hash.update(`${this.provided}`);
|
|
hash.update(`${this.terminalBinding}`);
|
|
if (this.exportsInfo && !alreadyVisitedExportsInfo.has(this.exportsInfo)) {
|
|
this.exportsInfo._updateHash(hash, runtime, alreadyVisitedExportsInfo);
|
|
}
|
|
}
|
|
|
|
getUsedInfo() {
|
|
if (this._globalUsed !== undefined) {
|
|
switch (this._globalUsed) {
|
|
case UsageState.Unused:
|
|
return "unused";
|
|
case UsageState.NoInfo:
|
|
return "no usage info";
|
|
case UsageState.Unknown:
|
|
return "maybe used (runtime-defined)";
|
|
case UsageState.Used:
|
|
return "used";
|
|
case UsageState.OnlyPropertiesUsed:
|
|
return "only properties used";
|
|
}
|
|
} else if (this._usedInRuntime !== undefined) {
|
|
/** @type {Map<RuntimeUsageStateType, string[]>} */
|
|
const map = new Map();
|
|
for (const [runtime, used] of this._usedInRuntime) {
|
|
const list = map.get(used);
|
|
if (list !== undefined) list.push(runtime);
|
|
else map.set(used, [runtime]);
|
|
}
|
|
const specificInfo = Array.from(map, ([used, runtimes]) => {
|
|
switch (used) {
|
|
case UsageState.NoInfo:
|
|
return `no usage info in ${runtimes.join(", ")}`;
|
|
case UsageState.Unknown:
|
|
return `maybe used in ${runtimes.join(", ")} (runtime-defined)`;
|
|
case UsageState.Used:
|
|
return `used in ${runtimes.join(", ")}`;
|
|
case UsageState.OnlyPropertiesUsed:
|
|
return `only properties used in ${runtimes.join(", ")}`;
|
|
}
|
|
});
|
|
if (specificInfo.length > 0) {
|
|
return specificInfo.join("; ");
|
|
}
|
|
}
|
|
return this._hasUseInRuntimeInfo ? "unused" : "no usage info";
|
|
}
|
|
|
|
getProvidedInfo() {
|
|
switch (this.provided) {
|
|
case undefined:
|
|
return "no provided info";
|
|
case null:
|
|
return "maybe provided (runtime-defined)";
|
|
case true:
|
|
return "provided";
|
|
case false:
|
|
return "not provided";
|
|
}
|
|
}
|
|
|
|
getRenameInfo() {
|
|
if (this._usedName !== null && this._usedName !== this.name) {
|
|
return `renamed to ${JSON.stringify(this._usedName).slice(1, -1)}`;
|
|
}
|
|
switch (this.canMangleProvide) {
|
|
case undefined:
|
|
switch (this.canMangleUse) {
|
|
case undefined:
|
|
return "missing provision and use info prevents renaming";
|
|
case false:
|
|
return "usage prevents renaming (no provision info)";
|
|
case true:
|
|
return "missing provision info prevents renaming";
|
|
}
|
|
break;
|
|
case true:
|
|
switch (this.canMangleUse) {
|
|
case undefined:
|
|
return "missing usage info prevents renaming";
|
|
case false:
|
|
return "usage prevents renaming";
|
|
case true:
|
|
return "could be renamed";
|
|
}
|
|
break;
|
|
case false:
|
|
switch (this.canMangleUse) {
|
|
case undefined:
|
|
return "provision prevents renaming (no use info)";
|
|
case false:
|
|
return "usage and provision prevents renaming";
|
|
case true:
|
|
return "provision prevents renaming";
|
|
}
|
|
break;
|
|
}
|
|
throw new Error(
|
|
`Unexpected flags for getRenameInfo ${this.canMangleProvide} ${this.canMangleUse}`
|
|
);
|
|
}
|
|
}
|
|
|
|
module.exports = ExportsInfo;
|
|
module.exports.ExportInfo = ExportInfo;
|
|
module.exports.UsageState = UsageState;
|