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94 lines
2.3 KiB
94 lines
2.3 KiB
2 years ago
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"use strict";
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module.exports = function(Promise, INTERNAL, debug) {
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var util = require("./util");
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var TimeoutError = Promise.TimeoutError;
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function HandleWrapper(handle) {
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this.handle = handle;
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}
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HandleWrapper.prototype._resultCancelled = function() {
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clearTimeout(this.handle);
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};
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var afterValue = function(value) { return delay(+this).thenReturn(value); };
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var delay = Promise.delay = function (ms, value) {
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var ret;
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var handle;
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if (value !== undefined) {
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ret = Promise.resolve(value)
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._then(afterValue, null, null, ms, undefined);
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if (debug.cancellation() && value instanceof Promise) {
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ret._setOnCancel(value);
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}
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} else {
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ret = new Promise(INTERNAL);
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handle = setTimeout(function() { ret._fulfill(); }, +ms);
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if (debug.cancellation()) {
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ret._setOnCancel(new HandleWrapper(handle));
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}
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ret._captureStackTrace();
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}
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ret._setAsyncGuaranteed();
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return ret;
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};
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Promise.prototype.delay = function (ms) {
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return delay(ms, this);
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};
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var afterTimeout = function (promise, message, parent) {
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var err;
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if (typeof message !== "string") {
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if (message instanceof Error) {
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err = message;
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} else {
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err = new TimeoutError("operation timed out");
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}
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} else {
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err = new TimeoutError(message);
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}
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util.markAsOriginatingFromRejection(err);
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promise._attachExtraTrace(err);
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promise._reject(err);
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if (parent != null) {
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parent.cancel();
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}
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};
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function successClear(value) {
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clearTimeout(this.handle);
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return value;
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}
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function failureClear(reason) {
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clearTimeout(this.handle);
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throw reason;
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}
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Promise.prototype.timeout = function (ms, message) {
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ms = +ms;
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var ret, parent;
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var handleWrapper = new HandleWrapper(setTimeout(function timeoutTimeout() {
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if (ret.isPending()) {
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afterTimeout(ret, message, parent);
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}
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}, ms));
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if (debug.cancellation()) {
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parent = this.then();
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ret = parent._then(successClear, failureClear,
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undefined, handleWrapper, undefined);
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ret._setOnCancel(handleWrapper);
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} else {
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ret = this._then(successClear, failureClear,
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undefined, handleWrapper, undefined);
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}
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return ret;
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};
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};
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