Brunobkr/llama.cpp_AlgMor24_github

1/*2  Copyright 2019 Google LLC3 4  Use of this source code is governed by an MIT-style5  license that can be found in the LICENSE file or at6  https://opensource.org/licenses/MIT.7*/8/**9 * A minimal `EventTarget` shim.10 * This is necessary because not all browsers support constructable11 * `EventTarget`, so using a real `EventTarget` will error.12 * @private13 */14export class WorkboxEventTarget {15    constructor() {16        this._eventListenerRegistry = new Map();17    }18    /**19     * @param {string} type20     * @param {Function} listener21     * @private22     */23    addEventListener(type, listener) {24        const foo = this._getEventListenersByType(type);25        foo.add(listener);26    }27    /**28     * @param {string} type29     * @param {Function} listener30     * @private31     */32    removeEventListener(type, listener) {33        this._getEventListenersByType(type).delete(listener);34    }35    /**36     * @param {Object} event37     * @private38     */39    dispatchEvent(event) {40        event.target = this;41        const listeners = this._getEventListenersByType(event.type);42        for (const listener of listeners) {43            listener(event);44        }45    }46    /**47     * Returns a Set of listeners associated with the passed event type.48     * If no handlers have been registered, an empty Set is returned.49     *50     * @param {string} type The event type.51     * @return {Set<ListenerCallback>} An array of handler functions.52     * @private53     */54    _getEventListenersByType(type) {55        if (!this._eventListenerRegistry.has(type)) {56            this._eventListenerRegistry.set(type, new Set());57        }58        return this._eventListenerRegistry.get(type);59    }60}61