mirror of https://github.com/webpack/webpack.git
291 lines
8.3 KiB
JavaScript
291 lines
8.3 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 { HookMap, SyncBailHook, SyncWaterfallHook } = require("tapable");
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const { concatComparators, keepOriginalOrder } = require("../util/comparators");
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const smartGrouping = require("../util/smartGrouping");
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/** @typedef {import("../Chunk")} Chunk */
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/** @typedef {import("../Compilation")} Compilation */
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/** @typedef {import("../Module")} Module */
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/** @typedef {import("../WebpackError")} WebpackError */
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/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
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/** @typedef {import("../util/smartGrouping").GroupConfig<any, object>} GroupConfig */
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/**
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* @typedef {object} KnownStatsFactoryContext
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* @property {string} type
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* @property {function(string): string=} makePathsRelative
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* @property {Compilation=} compilation
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* @property {Set<Module>=} rootModules
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* @property {Map<string,Chunk[]>=} compilationFileToChunks
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* @property {Map<string,Chunk[]>=} compilationAuxiliaryFileToChunks
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* @property {RuntimeSpec=} runtime
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* @property {function(Compilation): WebpackError[]=} cachedGetErrors
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* @property {function(Compilation): WebpackError[]=} cachedGetWarnings
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*/
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/** @typedef {KnownStatsFactoryContext & Record<string, any>} StatsFactoryContext */
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class StatsFactory {
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constructor() {
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this.hooks = Object.freeze({
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/** @type {HookMap<SyncBailHook<[object, any, StatsFactoryContext]>>} */
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extract: new HookMap(
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() => new SyncBailHook(["object", "data", "context"])
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),
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/** @type {HookMap<SyncBailHook<[any, StatsFactoryContext, number, number]>>} */
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filter: new HookMap(
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() => new SyncBailHook(["item", "context", "index", "unfilteredIndex"])
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),
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/** @type {HookMap<SyncBailHook<[(function(any, any): number)[], StatsFactoryContext]>>} */
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sort: new HookMap(() => new SyncBailHook(["comparators", "context"])),
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/** @type {HookMap<SyncBailHook<[any, StatsFactoryContext, number, number]>>} */
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filterSorted: new HookMap(
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() => new SyncBailHook(["item", "context", "index", "unfilteredIndex"])
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),
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/** @type {HookMap<SyncBailHook<[GroupConfig[], StatsFactoryContext]>>} */
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groupResults: new HookMap(
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() => new SyncBailHook(["groupConfigs", "context"])
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),
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/** @type {HookMap<SyncBailHook<[(function(any, any): number)[], StatsFactoryContext]>>} */
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sortResults: new HookMap(
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() => new SyncBailHook(["comparators", "context"])
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),
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/** @type {HookMap<SyncBailHook<[any, StatsFactoryContext, number, number]>>} */
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filterResults: new HookMap(
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() => new SyncBailHook(["item", "context", "index", "unfilteredIndex"])
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),
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/** @type {HookMap<SyncBailHook<[any[], StatsFactoryContext]>>} */
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merge: new HookMap(() => new SyncBailHook(["items", "context"])),
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/** @type {HookMap<SyncBailHook<[any[], StatsFactoryContext]>>} */
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result: new HookMap(() => new SyncWaterfallHook(["result", "context"])),
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/** @type {HookMap<SyncBailHook<[any, StatsFactoryContext]>>} */
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getItemName: new HookMap(() => new SyncBailHook(["item", "context"])),
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/** @type {HookMap<SyncBailHook<[any, StatsFactoryContext]>>} */
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getItemFactory: new HookMap(() => new SyncBailHook(["item", "context"]))
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});
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const hooks = this.hooks;
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this._caches =
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/** @type {Record<keyof typeof hooks, Map<string, SyncBailHook<[any[], StatsFactoryContext]>[]>>} */ ({});
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for (const key of Object.keys(hooks)) {
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this._caches[key] = new Map();
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}
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this._inCreate = false;
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}
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_getAllLevelHooks(hookMap, cache, type) {
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const cacheEntry = cache.get(type);
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if (cacheEntry !== undefined) {
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return cacheEntry;
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}
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const hooks = [];
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const typeParts = type.split(".");
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for (let i = 0; i < typeParts.length; i++) {
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const hook = hookMap.get(typeParts.slice(i).join("."));
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if (hook) {
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hooks.push(hook);
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}
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}
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cache.set(type, hooks);
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return hooks;
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}
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_forEachLevel(hookMap, cache, type, fn) {
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for (const hook of this._getAllLevelHooks(hookMap, cache, type)) {
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const result = fn(hook);
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if (result !== undefined) return result;
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}
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}
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_forEachLevelWaterfall(hookMap, cache, type, data, fn) {
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for (const hook of this._getAllLevelHooks(hookMap, cache, type)) {
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data = fn(hook, data);
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}
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return data;
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}
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_forEachLevelFilter(hookMap, cache, type, items, fn, forceClone) {
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const hooks = this._getAllLevelHooks(hookMap, cache, type);
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if (hooks.length === 0) return forceClone ? items.slice() : items;
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let i = 0;
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return items.filter((item, idx) => {
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for (const hook of hooks) {
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const r = fn(hook, item, idx, i);
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if (r !== undefined) {
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if (r) i++;
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return r;
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}
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}
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i++;
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return true;
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});
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}
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/**
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* @param {string} type type
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* @param {any} data factory data
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* @param {Omit<StatsFactoryContext, "type">} baseContext context used as base
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* @returns {any} created object
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*/
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create(type, data, baseContext) {
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if (this._inCreate) {
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return this._create(type, data, baseContext);
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}
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try {
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this._inCreate = true;
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return this._create(type, data, baseContext);
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} finally {
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for (const key of Object.keys(this._caches)) this._caches[key].clear();
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this._inCreate = false;
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}
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}
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_create(type, data, baseContext) {
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const context = {
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...baseContext,
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type,
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[type]: data
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};
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if (Array.isArray(data)) {
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// run filter on unsorted items
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const items = this._forEachLevelFilter(
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this.hooks.filter,
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this._caches.filter,
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type,
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data,
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(h, r, idx, i) => h.call(r, context, idx, i),
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true
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);
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// sort items
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const comparators = [];
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this._forEachLevel(this.hooks.sort, this._caches.sort, type, h =>
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h.call(comparators, context)
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);
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if (comparators.length > 0) {
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items.sort(
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// @ts-expect-error number of arguments is correct
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concatComparators(...comparators, keepOriginalOrder(items))
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);
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}
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// run filter on sorted items
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const items2 = this._forEachLevelFilter(
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this.hooks.filterSorted,
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this._caches.filterSorted,
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type,
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items,
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(h, r, idx, i) => h.call(r, context, idx, i),
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false
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);
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// for each item
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let resultItems = items2.map((item, i) => {
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const itemContext = {
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...context,
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_index: i
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};
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// run getItemName
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const itemName = this._forEachLevel(
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this.hooks.getItemName,
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this._caches.getItemName,
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`${type}[]`,
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h => h.call(item, itemContext)
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);
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if (itemName) itemContext[itemName] = item;
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const innerType = itemName ? `${type}[].${itemName}` : `${type}[]`;
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// run getItemFactory
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const itemFactory =
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this._forEachLevel(
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this.hooks.getItemFactory,
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this._caches.getItemFactory,
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innerType,
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h => h.call(item, itemContext)
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) || this;
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// run item factory
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return itemFactory.create(innerType, item, itemContext);
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});
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// sort result items
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const comparators2 = [];
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this._forEachLevel(
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this.hooks.sortResults,
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this._caches.sortResults,
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type,
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h => h.call(comparators2, context)
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);
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if (comparators2.length > 0) {
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resultItems.sort(
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// @ts-expect-error number of arguments is correct
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concatComparators(...comparators2, keepOriginalOrder(resultItems))
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);
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}
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// group result items
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const groupConfigs = [];
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this._forEachLevel(
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this.hooks.groupResults,
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this._caches.groupResults,
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type,
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h => h.call(groupConfigs, context)
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);
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if (groupConfigs.length > 0) {
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resultItems = smartGrouping(resultItems, groupConfigs);
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}
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// run filter on sorted result items
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const finalResultItems = this._forEachLevelFilter(
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this.hooks.filterResults,
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this._caches.filterResults,
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type,
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resultItems,
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(h, r, idx, i) => h.call(r, context, idx, i),
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false
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);
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// run merge on mapped items
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let result = this._forEachLevel(
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this.hooks.merge,
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this._caches.merge,
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type,
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h => h.call(finalResultItems, context)
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);
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if (result === undefined) result = finalResultItems;
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// run result on merged items
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return this._forEachLevelWaterfall(
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this.hooks.result,
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this._caches.result,
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type,
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result,
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(h, r) => h.call(r, context)
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);
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}
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const object = {};
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// run extract on value
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this._forEachLevel(this.hooks.extract, this._caches.extract, type, h =>
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h.call(object, data, context)
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);
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// run result on extracted object
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return this._forEachLevelWaterfall(
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this.hooks.result,
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this._caches.result,
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type,
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object,
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(h, r) => h.call(r, context)
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);
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}
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}
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module.exports = StatsFactory;
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