44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
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"use strict";
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var customError = require("es5-ext/error/custom")
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, isValue = require("es5-ext/object/is-value")
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, ensurePromise = require("es5-ext/object/ensure-promise")
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, nextTick = require("next-tick")
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, ensureTimeout = require("../valid-timeout");
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module.exports = function (/* timeout */) {
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ensurePromise(this);
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var timeout = arguments[0];
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if (isValue(timeout)) timeout = ensureTimeout(timeout);
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return new this.constructor(
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function (resolve, reject) {
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var isSettled = false, timeoutId;
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var timeoutCallback = function () {
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if (isSettled) return;
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reject(
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customError(
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"Operation timeout (exceeded " +
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(isValue(timeout) ? timeout + "ms" : "tick") +
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")",
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"PROMISE_TIMEOUT"
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)
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);
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};
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if (isValue(timeout)) timeoutId = setTimeout(timeoutCallback, timeout);
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else nextTick(timeoutCallback);
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this.then(
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function (value) {
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isSettled = true;
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clearTimeout(timeoutId);
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resolve(value);
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},
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function (reason) {
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isSettled = true;
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clearTimeout(timeoutId);
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reject(reason);
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}
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);
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}.bind(this)
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);
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};
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