/*
 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.graal.nodes;

import com.oracle.graal.graph.*;
import com.oracle.graal.nodes.calc.*;
import com.oracle.graal.nodes.type.*;

/**
 * The {@code Local} instruction is a placeholder for an incoming argument to a function call.
 */
@NodeInfo(nameTemplate = "Local({p#index})")
public final class LocalNode extends FloatingNode implements Node.IterableNodeType {

    private final int index;

    public LocalNode(int index, Stamp stamp) {
        super(stamp);
        this.index = index;
    }

    /**
     * Gets the index of this local in the array of parameters. This is NOT the JVM local index.
     * 
     * @return the index
     */
    public int index() {
        return index;
    }

    @Override
    public String toString(Verbosity verbosity) {
        if (verbosity == Verbosity.Name) {
            return super.toString(Verbosity.Name) + "(" + index + ")";
        } else {
            return super.toString(verbosity);
        }
    }
}