*  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.

*/

* Abstract class of all ByteCodeForms which add a nested

* entry from the globalConstantPool.

*/

    public ReferenceForm(int opcode, String name, int[] rewrite) {

        super(opcode, name, rewrite);

        // TODO Auto-generated constructor stub

    }

    protected abstract int getPoolID();

    protected abstract int getOffset(OperandManager operandManager);

    protected void setNestedEntries(ByteCode byteCode, OperandManager operandManager, int offset) throws Pack200Exception {

        SegmentConstantPool globalPool = operandManager.globalConstantPool();

        ClassFileEntry[] nested = null;

        nested = new ClassFileEntry[] {

                    globalPool.getConstantPoolEntry(getPoolID(), offset)

            };

        byteCode.setNested(nested);

        byteCode.setNestedPositions(new int[][] {{0,2}});

    }

    /* (non-Javadoc)

     * @see org.apache.harmony.pack200.bytecode.forms.ByteCodeForm#setByteCodeOperands(org.apache.harmony.pack200.bytecode.ByteCode, org.apache.harmony.pack200.bytecode.OperandTable, org.apache.harmony.pack200.Segment)

     */

    public void setByteCodeOperands(ByteCode byteCode,

            OperandManager operandManager, int codeLength) {

        int offset = getOffset(operandManager);

        try {

            setNestedEntries(byteCode, operandManager, offset);

        } catch (Pack200Exception ex) {

            throw new Error("Got a pack200 exception. What to do?");

        }

    }

}