View Javadoc
1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      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.bcel.generic;
18  
19  /**
20   * Wrapper class for 'compound' operations, virtual instructions that don't exist as byte code, but give a useful
21   * meaning. For example, the (virtual) PUSH instruction takes an arbitrary argument and produces the appropriate code at
22   * dump time (ICONST, LDC, BIPUSH, ...). Also you can use the SWITCH instruction as a useful template for either
23   * LOOKUPSWITCH or TABLESWITCH.
24   *
25   * The interface provides the possibility for the user to write 'templates' or 'macros' for such reusable code patterns.
26   *
27   * @see PUSH
28   * @see SWITCH
29   */
30  public interface CompoundInstruction {
31  
32      InstructionList getInstructionList();
33  }