aaac7fed
 liuqimichale
add
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"use strict";
module.exports = function(Promise, INTERNAL, debug) {
var util = require("./util");
var TimeoutError = Promise.TimeoutError;
function HandleWrapper(handle) {
this.handle = handle;
}
HandleWrapper.prototype._resultCancelled = function() {
clearTimeout(this.handle);
};
var afterValue = function(value) { return delay(+this).thenReturn(value); };
var delay = Promise.delay = function (ms, value) {
var ret;
var handle;
if (value !== undefined) {
ret = Promise.resolve(value)
._then(afterValue, null, null, ms, undefined);
if (debug.cancellation() && value instanceof Promise) {
ret._setOnCancel(value);
}
} else {
ret = new Promise(INTERNAL);
handle = setTimeout(function() { ret._fulfill(); }, +ms);
if (debug.cancellation()) {
ret._setOnCancel(new HandleWrapper(handle));
}
ret._captureStackTrace();
}
ret._setAsyncGuaranteed();
return ret;
};
Promise.prototype.delay = function (ms) {
return delay(ms, this);
};
var afterTimeout = function (promise, message, parent) {
var err;
if (typeof message !== "string") {
if (message instanceof Error) {
err = message;
} else {
err = new TimeoutError("operation timed out");
}
} else {
err = new TimeoutError(message);
}
util.markAsOriginatingFromRejection(err);
promise._attachExtraTrace(err);
promise._reject(err);
if (parent != null) {
parent.cancel();
}
};
function successClear(value) {
clearTimeout(this.handle);
return value;
}
function failureClear(reason) {
clearTimeout(this.handle);
throw reason;
}
Promise.prototype.timeout = function (ms, message) {
ms = +ms;
var ret, parent;
var handleWrapper = new HandleWrapper(setTimeout(function timeoutTimeout() {
if (ret.isPending()) {
afterTimeout(ret, message, parent);
}
}, ms));
if (debug.cancellation()) {
parent = this.then();
ret = parent._then(successClear, failureClear,
undefined, handleWrapper, undefined);
ret._setOnCancel(handleWrapper);
} else {
ret = this._then(successClear, failureClear,
undefined, handleWrapper, undefined);
}
return ret;
};
};
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