001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.compress.harmony.unpack200.bytecode.forms; 018 019import org.apache.commons.compress.harmony.unpack200.SegmentConstantPool; 020import org.apache.commons.compress.harmony.unpack200.bytecode.ByteCode; 021import org.apache.commons.compress.harmony.unpack200.bytecode.CPInterfaceMethodRef; 022import org.apache.commons.compress.harmony.unpack200.bytecode.OperandManager; 023 024/** 025 * This class implements the byte code form for those bytecodes which have IMethod references (and only IMethod 026 * references). 027 */ 028public class IMethodRefForm extends ReferenceForm { 029 030 public IMethodRefForm(final int opcode, final String name, final int[] rewrite) { 031 super(opcode, name, rewrite); 032 } 033 034 @Override 035 protected int getOffset(final OperandManager operandManager) { 036 return operandManager.nextIMethodRef(); 037 } 038 039 @Override 040 protected int getPoolID() { 041 return SegmentConstantPool.CP_IMETHOD; 042 } 043 044 /* 045 * (non-Javadoc) 046 * 047 * @see 048 * org.apache.commons.compress.harmony.unpack200.bytecode.forms.ByteCodeForm#setByteCodeOperands(org.apache.commons. 049 * compress.harmony.unpack200.bytecode.ByteCode, 050 * org.apache.commons.compress.harmony.unpack200.bytecode.OperandTable, 051 * org.apache.commons.compress.harmony.unpack200.Segment) 052 */ 053 @Override 054 public void setByteCodeOperands(final ByteCode byteCode, final OperandManager operandManager, 055 final int codeLength) { 056 super.setByteCodeOperands(byteCode, operandManager, codeLength); 057 final int count = ((CPInterfaceMethodRef) byteCode.getNestedClassFileEntries()[0]).invokeInterfaceCount(); 058 byteCode.getRewrite()[3] = count; 059 } 060}