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1   /*
2    * Copyright  2000-2004 The Apache Software Foundation
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License"); 
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License. 
15   *
16   */
17  package org.apache.bcel.generic;
18  
19  import java.io.IOException;
20  import org.apache.bcel.util.ByteSequence;
21  
22  /*** 
23   * LDC_W - Push item from constant pool (wide index)
24   *
25   * <PRE>Stack: ... -&gt; ..., item.word1, item.word2</PRE>
26   *
27   * @version $Id: LDC_W.java 386056 2006-03-15 11:31:56Z tcurdt $
28   * @author  <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
29   */
30  public class LDC_W extends LDC {
31  
32      /***
33       * Empty constructor needed for the Class.newInstance() statement in
34       * Instruction.readInstruction(). Not to be used otherwise.
35       */
36      LDC_W() {
37      }
38  
39  
40      public LDC_W(int index) {
41          super(index);
42      }
43  
44  
45      /***
46       * Read needed data (i.e., index) from file.
47       */
48      protected void initFromFile( ByteSequence bytes, boolean wide ) throws IOException {
49          setIndex(bytes.readUnsignedShort());
50          // Override just in case it has been changed
51          opcode = org.apache.bcel.Constants.LDC_W;
52          length = 3;
53      }
54  }