/*
* Copyright 2003-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codehaus.groovy.classgen.asm;
import static org.objectweb.asm.Opcodes.*;
import org.codehaus.groovy.GroovyBugError;
import org.codehaus.groovy.ast.ClassHelper;
import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.runtime.BytecodeInterface8;
import org.objectweb.asm.MethodVisitor;
/**
* @author <a href="mailto:blackdrag@gmx.org">Jochen "blackdrag" Theodorou</a>
*/
public class BinaryDoubleExpressionHelper extends BinaryLongExpressionHelper {
public BinaryDoubleExpressionHelper(WriterController controller) {
super(controller);
}
private static final MethodCaller
doubleArrayGet = MethodCaller.newStatic(BytecodeInterface8.class, "dArrayGet"),
doubleArraySet = MethodCaller.newStatic(BytecodeInterface8.class, "dArraySet");
protected MethodCaller getArrayGetCaller() {
return doubleArrayGet;
}
protected MethodCaller getArraySetCaller() {
return doubleArraySet;
}
protected boolean writeBitwiseOp(int op, boolean simulate) {
if (!simulate) throw new GroovyBugError("should not reach here");
return false;
}
protected int getBitwiseOperationBytecode(int op) {
return -1;
}
protected int getCompareCode() {
return DCMPG;
}
protected ClassNode getNormalOpResultType() {
return ClassHelper.double_TYPE;
}
protected boolean writeShiftOp(int type, boolean simulate) {
if (!simulate) throw new GroovyBugError("should not reach here");
return false;
}
protected int getShiftOperationBytecode(int type) {
return -1;
}
private static final int[] stdOperations = {
DADD, // PLUS 200
DSUB, // MINUS 201
DMUL, // MULTIPLY 202
0, // DIV, (203) but we don't want that one
DDIV, // INTDIV 204
DREM, // MOD 203
};
protected int getStandardOperationBytecode(int type) {
return stdOperations[type];
}
protected void writeMinusMinus(MethodVisitor mv) {
mv.visitInsn(DCONST_1);
mv.visitInsn(DSUB);
}
protected void writePlusPlus(MethodVisitor mv) {
mv.visitInsn(DCONST_1);
mv.visitInsn(DADD);
}
}