node_modules/bluebird/js/zalgo/errors.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";
var global = require("./global.js");
var Objectfreeze = require("./es5.js").freeze;
var util = require("./util.js");
var inherits = util.inherits;
var notEnumerableProp = util.notEnumerableProp;
var Error = global.Error;

function markAsOriginatingFromRejection(e) {
    try {
        notEnumerableProp(e, "isAsync", true);
    }
    catch(ignore) {}
}

function originatesFromRejection(e) {
    if (e == null) return false;
    return ((e instanceof RejectionError) ||
        e["isAsync"] === true);
}

function isError(obj) {
    return obj instanceof Error;
}

function canAttach(obj) {
    return isError(obj);
}

function subError(nameProperty, defaultMessage) {
    function SubError(message) {
        if (!(this instanceof SubError)) return new SubError(message);
        this.message = typeof message === "string" ? message : defaultMessage;
        this.name = nameProperty;
        if (Error.captureStackTrace) {
            Error.captureStackTrace(this, this.constructor);
        }
    }
    inherits(SubError, Error);
    return SubError;
}

var TypeError = global.TypeError;
if (typeof TypeError !== "function") {
    TypeError = subError("TypeError", "type error");
}
var RangeError = global.RangeError;
if (typeof RangeError !== "function") {
    RangeError = subError("RangeError", "range error");
}
var CancellationError = subError("CancellationError", "cancellation error");
var TimeoutError = subError("TimeoutError", "timeout error");

function RejectionError(message) {
    this.name = "RejectionError";
    this.message = message;
    this.cause = message;
    this.isAsync = true;

    if (message instanceof Error) {
        this.message = message.message;
        this.stack = message.stack;
    }
    else if (Error.captureStackTrace) {
        Error.captureStackTrace(this, this.constructor);
    }

}
inherits(RejectionError, Error);

var key = "__BluebirdErrorTypes__";
var errorTypes = global[key];
if (!errorTypes) {
    errorTypes = Objectfreeze({
        CancellationError: CancellationError,
        TimeoutError: TimeoutError,
        RejectionError: RejectionError
    });
    notEnumerableProp(global, key, errorTypes);
}

module.exports = {
    Error: Error,
    TypeError: TypeError,
    RangeError: RangeError,
    CancellationError: errorTypes.CancellationError,
    RejectionError: errorTypes.RejectionError,
    TimeoutError: errorTypes.TimeoutError,
    originatesFromRejection: originatesFromRejection,
    markAsOriginatingFromRejection: markAsOriginatingFromRejection,
    canAttach: canAttach
};