testcafe/lib/utils/async-event-emitter.js

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const emittery_1 = __importDefault(require("emittery"));
class AsyncEventEmitter extends emittery_1.default {
    once(event, listener) {
        return new Promise((resolve, reject) => {
            const off = this.on(event, function (data) {
                try {
                    off();
                    const result = listener ? listener.call(this, data) : data;
                    resolve(result);
                    return result;
                }
                catch (e) {
                    reject(e);
                    throw e;
                }
            });
        });
    }
}
exports.default = AsyncEventEmitter;
module.exports = exports.default;
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