Initial commit

node_modules/delay/index.js

@@ -0,0 +1,72 @@
+'use strict';
+
+// From https://github.com/sindresorhus/random-int/blob/c37741b56f76b9160b0b63dae4e9c64875128146/index.js#L13-L15
+const randomInteger = (minimum, maximum) => Math.floor((Math.random() * (maximum - minimum + 1)) + minimum);
+
+const createAbortError = () => {
+	const error = new Error('Delay aborted');
+	error.name = 'AbortError';
+	return error;
+};
+
+const createDelay = ({clearTimeout: defaultClear, setTimeout: set, willResolve}) => (ms, {value, signal} = {}) => {
+	if (signal && signal.aborted) {
+		return Promise.reject(createAbortError());
+	}
+
+	let timeoutId;
+	let settle;
+	let rejectFn;
+	const clear = defaultClear || clearTimeout;
+
+	const signalListener = () => {
+		clear(timeoutId);
+		rejectFn(createAbortError());
+	};
+
+	const cleanup = () => {
+		if (signal) {
+			signal.removeEventListener('abort', signalListener);
+		}
+	};
+
+	const delayPromise = new Promise((resolve, reject) => {
+		settle = () => {
+			cleanup();
+			if (willResolve) {
+				resolve(value);
+			} else {
+				reject(value);
+			}
+		};
+
+		rejectFn = reject;
+		timeoutId = (set || setTimeout)(settle, ms);
+	});
+
+	if (signal) {
+		signal.addEventListener('abort', signalListener, {once: true});
+	}
+
+	delayPromise.clear = () => {
+		clear(timeoutId);
+		timeoutId = null;
+		settle();
+	};
+
+	return delayPromise;
+};
+
+const createWithTimers = clearAndSet => {
+	const delay = createDelay({...clearAndSet, willResolve: true});
+	delay.reject = createDelay({...clearAndSet, willResolve: false});
+	delay.range = (minimum, maximum, options) => delay(randomInteger(minimum, maximum), options);
+	return delay;
+};
+
+const delay = createWithTimers();
+delay.createWithTimers = createWithTimers;
+
+module.exports = delay;
+// TODO: Remove this for the next major release
+module.exports.default = delay;