Package org.apache.harmony.pack200.bytecode.forms

Source Code of org.apache.harmony.pack200.bytecode.forms.InitMethodReferenceForm

/*
*  Licensed to the Apache Software Foundation (ASF) under one or more
*  contributor license agreements.  See the NOTICE file distributed with
*  this work for additional information regarding copyright ownership.
*  The ASF licenses this file to You 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.apache.harmony.pack200.bytecode.forms;

import org.apache.harmony.pack200.Pack200Exception;
import org.apache.harmony.pack200.SegmentConstantPool;
import org.apache.harmony.pack200.bytecode.ByteCode;
import org.apache.harmony.pack200.bytecode.ClassFileEntry;
import org.apache.harmony.pack200.bytecode.OperandManager;

/**
* Abstract superclass of those classes which look up init methods
* (these are class specific methods). They use getInitMethodPoolEntry
* to find the methods.
*/
public abstract class InitMethodReferenceForm extends ClassSpecificReferenceForm {

    public InitMethodReferenceForm(int opcode, String name,
            int[] rewrite) {
        super(opcode, name, rewrite);
        // TODO Auto-generated constructor stub
    }

    protected abstract String context(OperandManager operandManager);

    public boolean hasInitMethodRefOperand() {
        return true;
    }

    protected int getPoolID() {
        return SegmentConstantPool.CP_METHOD;
    }

    protected int getOffset(OperandManager operandManager) {
        return operandManager.nextInitRef();
    }

    protected void setNestedEntries(ByteCode byteCode, OperandManager operandManager, int offset) throws Pack200Exception {
        SegmentConstantPool globalPool = operandManager.globalConstantPool();
        ClassFileEntry[] nested = null;
        nested = new ClassFileEntry[] {
                globalPool.getInitMethodPoolEntry(SegmentConstantPool.CP_METHOD, offset, context(operandManager))
        };
        byteCode.setNested(nested);
        byteCode.setNestedPositions(new int[][] {{0, 2}});
    }
}
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