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/*
* Copyright (c) 2010, 2013, 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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 jdk.nashorn.internal.codegen;
import static jdk.internal.org.objectweb.asm.Opcodes.IFEQ;
import static jdk.internal.org.objectweb.asm.Opcodes.IFGE;
import static jdk.internal.org.objectweb.asm.Opcodes.IFGT;
import static jdk.internal.org.objectweb.asm.Opcodes.IFLE;
import static jdk.internal.org.objectweb.asm.Opcodes.IFLT;
import static jdk.internal.org.objectweb.asm.Opcodes.IFNE;
import static jdk.internal.org.objectweb.asm.Opcodes.IF_ACMPEQ;
import static jdk.internal.org.objectweb.asm.Opcodes.IF_ACMPNE;
import static jdk.internal.org.objectweb.asm.Opcodes.IF_ICMPEQ;
import static jdk.internal.org.objectweb.asm.Opcodes.IF_ICMPGE;
import static jdk.internal.org.objectweb.asm.Opcodes.IF_ICMPGT;
import static jdk.internal.org.objectweb.asm.Opcodes.IF_ICMPLE;
import static jdk.internal.org.objectweb.asm.Opcodes.IF_ICMPLT;
import static jdk.internal.org.objectweb.asm.Opcodes.IF_ICMPNE;
/**
* Condition enum used for all kinds of jumps, regardless of type
*/
enum Condition {
EQ,
NE,
LE,
LT,
GE,
GT;
static int toUnary(final Condition c) {
switch (c) {
case EQ:
return IFEQ;
case NE:
return IFNE;
case LE:
return IFLE;
case LT:
return IFLT;
case GE:
return IFGE;
case GT:
return IFGT;
default:
throw new UnsupportedOperationException("toUnary:" + c.toString());
}
}
static int toBinary(final Condition c, final boolean isObject) {
switch (c) {
case EQ:
return isObject ? IF_ACMPEQ : IF_ICMPEQ;
case NE:
return isObject ? IF_ACMPNE : IF_ICMPNE;
case LE:
return IF_ICMPLE;
case LT:
return IF_ICMPLT;
case GE:
return IF_ICMPGE;
case GT:
return IF_ICMPGT;
default:
throw new UnsupportedOperationException("toBinary:" + c.toString());
}
}
}
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