01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.harmony.pack200.bytecode.forms;
18:
19: import org.apache.harmony.pack200.Pack200Exception;
20: import org.apache.harmony.pack200.bytecode.ByteCode;
21: import org.apache.harmony.pack200.bytecode.OperandManager;
22:
23: /**
24: * Some bytecodes (such as (a)ldc, fldc and ildc) have single-
25: * byte references to the class pool. This class is the
26: * abstract superclass of those classes.
27: */
28: public abstract class SingleByteReferenceForm extends ReferenceForm {
29:
30: protected boolean widened = false;
31:
32: public SingleByteReferenceForm(int opcode, String name,
33: int[] rewrite) {
34: super (opcode, name, rewrite);
35: // TODO Auto-generated constructor stub
36: }
37:
38: protected abstract int getOffset(OperandManager operandManager);
39:
40: protected abstract int getPoolID();
41:
42: protected void setNestedEntries(ByteCode byteCode,
43: OperandManager operandManager, int offset)
44: throws Pack200Exception {
45: super .setNestedEntries(byteCode, operandManager, offset);
46: if (widened) {
47: byteCode.setNestedPositions(new int[][] { { 0, 2 } });
48: } else {
49: byteCode.setNestedPositions(new int[][] { { 0, 1 } });
50: }
51: }
52: }
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