view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/LessThanNode.java @ 10076:25de9c96a032

Minor CompilationTask refactoring.
author Christian Haeubl <haeubl@ssw.jku.at>
date Tue, 18 Jun 2013 09:00:33 +0200
parents aa9ffb3a715e
children 447465567e6f
line wrap: on
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/*
 * Copyright (c) 2012, 2012, 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;

import java.math.*;

import com.oracle.truffle.api.codegen.*;

public abstract class LessThanNode extends BinaryNode {

    @Specialization
    public boolean doInteger(int left, int right) {
        return left < right;
    }

    @Specialization
    public boolean doBigInteger(BigInteger left, BigInteger right) {
        return left.compareTo(right) < 0;
    }

    @Specialization(guards = "isString")
    public boolean doString(Object left, Object right) {
        return left.toString().compareTo(right.toString()) < 0;
    }

    @Generic
    public boolean doGeneric(Object left, Object right) {
        throw new RuntimeException("comparison not defined for types " + left.getClass().getSimpleName() + ", " + right.getClass().getSimpleName());
    }
}