net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/codegen/CaseLabel.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.compiler.codegen;
  12
  13 public class CaseLabel extends Label {
  14         public int instructionPosition = POS_NOT_SET;
  15         public int backwardsBranch = POS_NOT_SET;
  16 /**
  17  * CaseLabel constructor comment.
  18  * @param codeStream net.sourceforge.phpdt.internal.compiler.codegen.CodeStream
  19  */
  20 //public CaseLabel(CodeStream codeStream) {
  21 //      super(codeStream);
  22 //}
  23 /*
  24 * Put down  a refernece to the array at the location in the codestream.
  25 */
  26 //void branch() {
  27 //      if (position == POS_NOT_SET) {
  28 //              addForwardReference(codeStream.position);
  29 //              // Leave 4 bytes free to generate the jump offset afterwards
  30 //              codeStream.position += 4;
  31 //              codeStream.classFileOffset += 4;
  32 //      } else { //Position is set. Write it!
  33 //              codeStream.writeSignedWord(position - codeStream.position + 1);
  34 //      }
  35 //}
  36 ///*
  37 //* Put down  a refernece to the array at the location in the codestream.
  38 //*/
  39 //void branchWide() {
  40 //      if (position == POS_NOT_SET) {
  41 //              addForwardReference(codeStream.position);
  42 //              // Leave 4 bytes free to generate the jump offset afterwards
  43 //              codeStream.position += 4;
  44 //      } else { //Position is set. Write it!
  45 //              codeStream.writeSignedWord(position - codeStream.position + 1);
  46 //      }
  47 //}
  48 //public boolean isStandardLabel(){
  49 //      return false;
  50 //}
  51 ///*
  52 //* Put down  a reference to the array at the location in the codestream.
  53 //*/
  54 //public void place() {
  55 //      position = codeStream.position;
  56 //      if (instructionPosition == POS_NOT_SET)
  57 //              backwardsBranch = position;
  58 //      else {
  59 //              int offset = position - instructionPosition;
  60 //              for (int i = 0; i < forwardReferenceCount; i++) {
  61 //                      codeStream.writeSignedWord(forwardReferences[i], offset);
  62 //              }
  63 //              // add the label int the codeStream labels collection
  64 //              codeStream.addLabel(this);
  65 //      }
  66 //}
  67 /*
  68 * Put down  a refernece to the array at the location in the codestream.
  69 */
  70 //void placeInstruction() {
  71 //      if (instructionPosition == POS_NOT_SET) {
  72 //              instructionPosition = codeStream.position;
  73 //              if (backwardsBranch != POS_NOT_SET) {
  74 //                      int offset = backwardsBranch - instructionPosition;
  75 //                      for (int i = 0; i < forwardReferenceCount; i++)
  76 //                              codeStream.writeSignedWord(forwardReferences[i], offset);
  77 //                      backwardsBranch = POS_NOT_SET;
  78 //              }
  79 //      }
  80 //}
  81 }