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"use strict";
module.exports = function(Promise, INTERNAL) {
var util = require("./util.js");
var TimeoutError = Promise.TimeoutError;

var afterTimeout = function (promise, message) {
    if (!promise.isPending()) return;
    if (typeof message !== "string") {
        message = "operation timed out";
    }
    var err = new TimeoutError(message);
    util.markAsOriginatingFromRejection(err);
    promise._attachExtraTrace(err);
    promise._cancel(err);
};

var afterValue = function(value) { return delay(+this).thenReturn(value); };
var delay = Promise.delay = function (value, ms) {
    if (ms === undefined) {
        ms = value;
        value = undefined;
        var ret = new Promise(INTERNAL);
        setTimeout(function() { ret._fulfill(); }, ms);
        return ret;
    }
    ms = +ms;
    return Promise.resolve(value)._then(afterValue, null, null, ms, undefined);
};

Promise.prototype.delay = function (ms) {
    return delay(this, ms);
};

function successClear(value) {
    var handle = this;
    if (handle instanceof Number) handle = +handle;
    clearTimeout(handle);
    return value;
}

function failureClear(reason) {
    var handle = this;
    if (handle instanceof Number) handle = +handle;
    clearTimeout(handle);
    throw reason;
}

Promise.prototype.timeout = function (ms, message) {
    ms = +ms;
    var ret = this.then().cancellable();
    ret._cancellationParent = this;
    var handle = setTimeout(function timeoutTimeout() {
        afterTimeout(ret, message);
    }, ms);
    return ret._then(successClear, failureClear, undefined, handle, undefined);
};

};