HookMap.js
66f34df107aapaginated-inlines

HookMap.js
View Options

			/*
			MIT License http://www.opensource.org/licenses/mit-license.php
			Author Tobias Koppers @sokra
			*/
			"use strict";

			const util = require("util");

			const defaultFactory = (key, hook) => hook;

			class HookMap {
			constructor(factory, name = undefined) {
			this._map = new Map();
			this.name = name;
			this._factory = factory;
			this._interceptors = [];
			}

			get(key) {
			return this._map.get(key);
			}

			for(key) {
			const hook = this.get(key);
			if (hook !== undefined) {
			return hook;
			}
			let newHook = this._factory(key);
			const interceptors = this._interceptors;
			for (let i = 0; i < interceptors.length; i++) {
			newHook = interceptors[i].factory(key, newHook);
			}
			this._map.set(key, newHook);
			return newHook;
			}

			intercept(interceptor) {
			this._interceptors.push(
			Object.assign(
			{
			factory: defaultFactory
			},
			interceptor
			)
			);
			}
			}

			HookMap.prototype.tap = util.deprecate(function(key, options, fn) {
			return this.for(key).tap(options, fn);
			}, "HookMap#tap(key,…) is deprecated. Use HookMap#for(key).tap(…) instead.");

			HookMap.prototype.tapAsync = util.deprecate(function(key, options, fn) {
			return this.for(key).tapAsync(options, fn);
			}, "HookMap#tapAsync(key,…) is deprecated. Use HookMap#for(key).tapAsync(…) instead.");

			HookMap.prototype.tapPromise = util.deprecate(function(key, options, fn) {
			return this.for(key).tapPromise(options, fn);
			}, "HookMap#tapPromise(key,…) is deprecated. Use HookMap#for(key).tapPromise(…) instead.");

			module.exports = HookMap;