57 lines
1,021 B
JavaScript
57 lines
1,021 B
JavaScript
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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class HookMap {
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constructor(factory) {
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this._map = new Map();
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this._factory = factory;
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this._interceptors = [];
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}
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get(key) {
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return this._map.get(key);
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}
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for(key) {
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const hook = this.get(key);
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if (hook !== undefined) {
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return hook;
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}
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let newHook = this._factory(key);
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const interceptors = this._interceptors;
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for (let i = 0; i < interceptors.length; i++) {
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newHook = interceptors[i].factory(key, newHook);
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}
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this._map.set(key, newHook);
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return newHook;
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}
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intercept(interceptor) {
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this._interceptors.push(
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Object.assign(
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{
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factory: (key, hook) => hook
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},
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interceptor
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)
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);
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}
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tap(key, options, fn) {
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return this.for(key).tap(options, fn);
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}
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tapAsync(key, options, fn) {
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return this.for(key).tapAsync(options, fn);
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}
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tapPromise(key, options, fn) {
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return this.for(key).tapPromise(options, fn);
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}
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}
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module.exports = HookMap;
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