/*
 * Copyright (c) 2012, 2014, 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.truffle.sl.runtime;

import com.oracle.truffle.api.*;
import com.oracle.truffle.api.frame.*;
import com.oracle.truffle.sl.nodes.call.*;
import com.oracle.truffle.sl.nodes.local.*;

/**
 * Encapsulation of SL function arguments, as required by the Truffle API. An instance of this class
 * is allocated by the caller, and read by the callee.
 */
public final class SLArguments extends Arguments {

    private final Object[] argumentValues;

    /**
     * Used by the caller, i.e., the {@link SLCallNode node that performs a function call}.
     */
    public SLArguments(Object[] arguments) {
        this.argumentValues = arguments;
    }

    /**
     * Used by the callee, i.e., the {@link SLReadArgumentNode note that reads a function argument}.
     */
    public static Object[] getFromFrame(VirtualFrame frame) {
        return frame.getArguments(SLArguments.class).argumentValues;
    }
}