/*
 * 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.nodes.local;

import com.oracle.truffle.api.dsl.*;
import com.oracle.truffle.api.frame.*;
import com.oracle.truffle.sl.nodes.*;

@PolymorphicLimit(1)
@NodeField(name = "slot", type = FrameSlot.class)
public abstract class SLReadLocalVariableNode extends SLExpressionNode {

    protected abstract FrameSlot getSlot();

    @Specialization(rewriteOn = {FrameSlotTypeException.class})
    protected long readLong(VirtualFrame frame) throws FrameSlotTypeException {
        return frame.getLong(getSlot());
    }

    @Specialization(rewriteOn = {FrameSlotTypeException.class})
    protected boolean readBoolean(VirtualFrame frame) throws FrameSlotTypeException {
        return frame.getBoolean(getSlot());
    }

    @Specialization(rewriteOn = {FrameSlotTypeException.class})
    protected Object readObject(VirtualFrame frame) throws FrameSlotTypeException {
        return frame.getObject(getSlot());
    }

    @Generic
    protected Object readGeneric(VirtualFrame frame) {
        return frame.getValue(getSlot());
    }
}