org.jetbrains.java.decompiler.code.optinstructions.BIPUSH Maven / Gradle / Ivy
/*
* Copyright 2000-2015 JetBrains s.r.o.
*
* 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.jetbrains.java.decompiler.code.optinstructions;
import org.jetbrains.java.decompiler.code.Instruction;
import java.io.DataOutputStream;
import java.io.IOException;
public class BIPUSH extends Instruction {
private static final int[] opcodes =
new int[]{opc_iconst_m1, opc_iconst_0, opc_iconst_1, opc_iconst_2, opc_iconst_3, opc_iconst_4, opc_iconst_5};
public void writeToStream(DataOutputStream out, int offset) throws IOException {
int value = getOperand(0);
if (value < -1 || value > 5) {
out.writeByte(opc_bipush);
out.writeByte(value);
}
else {
out.writeByte(opcodes[value + 1]);
}
}
public int length() {
int value = getOperand(0);
if (value < -1 || value > 5) {
return 2;
}
else {
return 1;
}
}
}