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Текущая директория: /opt/BitGoJS/node_modules/supertest-as-promised/node_modules/bluebird/js/zalgo

Просмотр файла: thenables.js

/**
 * Copyright (c) 2014 Petka Antonov
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:</p>
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * 
 */
"use strict";
module.exports = function(Promise, INTERNAL) {
var util = require("./util.js");
var canAttach = require("./errors.js").canAttach;
var errorObj = util.errorObj;
var isObject = util.isObject;

function getThen(obj) {
    try {
        return obj.then;
    }
    catch(e) {
        errorObj.e = e;
        return errorObj;
    }
}

function Promise$_Cast(obj, originalPromise) {
    if (isObject(obj)) {
        if (obj instanceof Promise) {
            return obj;
        }
        else if (isAnyBluebirdPromise(obj)) {
            var ret = new Promise(INTERNAL);
            ret._setTrace(void 0);
            obj._then(
                ret._fulfillUnchecked,
                ret._rejectUncheckedCheckError,
                ret._progressUnchecked,
                ret,
                null
            );
            ret._setFollowing();
            return ret;
        }
        var then = getThen(obj);
        if (then === errorObj) {
            if (originalPromise !== void 0 && canAttach(then.e)) {
                originalPromise._attachExtraTrace(then.e);
            }
            return Promise.reject(then.e);
        }
        else if (typeof then === "function") {
            return Promise$_doThenable(obj, then, originalPromise);
        }
    }
    return obj;
}

var hasProp = {}.hasOwnProperty;
function isAnyBluebirdPromise(obj) {
    return hasProp.call(obj, "_promise0");
}

function Promise$_doThenable(x, then, originalPromise) {
    var resolver = Promise.defer();
    var called = false;
    try {
        then.call(
            x,
            Promise$_resolveFromThenable,
            Promise$_rejectFromThenable,
            Promise$_progressFromThenable
        );
    }
    catch(e) {
        if (!called) {
            called = true;
            var trace = canAttach(e) ? e : new Error(e + "");
            if (originalPromise !== void 0) {
                originalPromise._attachExtraTrace(trace);
            }
            resolver.promise._reject(e, trace);
        }
    }
    return resolver.promise;

    function Promise$_resolveFromThenable(y) {
        if (called) return;
        called = true;

        if (x === y) {
            var e = Promise._makeSelfResolutionError();
            if (originalPromise !== void 0) {
                originalPromise._attachExtraTrace(e);
            }
            resolver.promise._reject(e, void 0);
            return;
        }
        resolver.resolve(y);
    }

    function Promise$_rejectFromThenable(r) {
        if (called) return;
        called = true;
        var trace = canAttach(r) ? r : new Error(r + "");
        if (originalPromise !== void 0) {
            originalPromise._attachExtraTrace(trace);
        }
        resolver.promise._reject(r, trace);
    }

    function Promise$_progressFromThenable(v) {
        if (called) return;
        var promise = resolver.promise;
        if (typeof promise._progress === "function") {
            promise._progress(v);
        }
    }
}

Promise._cast = Promise$_Cast;
};

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