/*
 * Copyright (C) 2016 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */
"use strict";

class Tmp extends TmpBase {
    constructor(index, type)
    {
        super();
        this._index = index;
        this._type = type;
    }
    
    static fromReg(reg)
    {
        return reg;
    }
    
    get index() { return this._index; }
    get type() { return this._type; }
    
    get isReg() { return false; }
    
    hash()
    {
        if (isGP)
            return Reg.gprs[Reg.gprs.length - 1].hash() + 1 + this._index;
        return Reg.fprs[Reg.fprs.length - 1].hash() - 1 - this._index;
    }

    toString()
    {
        return "%" + (this.isGP ? "" : "f") + "tmp" + this._index;
    }
    
    static extract(arg)
    {
        if (arg.isTmp)
            return arg.tmp;
        return null;
    }

    static forEachFast(arg, func) { return arg.forEachTmpFast(func); }
    static forEach(arg, role, type, width, func) { return arg.forEachTmp(role, type, width, func); }
}
