/*
 * Copyright (c) 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.expression;

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

/**
 * A {@link SLExpressionNode} that represents a parenthesized expression; it simply returns the
 * value of the enclosed (child) expression. It is represented separately in the AST for the purpose
 * of correct source attribution; this preserves the lexical relationship between the two
 * parentheses and allows a tool to describe the expression as distinct from its contents.
 */
@NodeInfo(description = "A parenthesized expression")
public class SLParenExpressionNode extends SLExpressionNode {

    private final SLExpressionNode expression;

    public SLParenExpressionNode(SourceSection src, SLExpressionNode expression) {
        super(src);
        this.expression = insert(expression);
    }

    @Override
    public Object executeGeneric(VirtualFrame frame) {
        return expression.executeGeneric(frame);
    }

    @Override
    public long executeLong(VirtualFrame frame) throws UnexpectedResultException {
        return expression.executeLong(frame);
    }

    @Override
    public boolean executeBoolean(VirtualFrame frame) throws UnexpectedResultException {
        return expression.executeBoolean(frame);
    }

}