net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/BranchStatement.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.ast;
  12
  13 import net.sourceforge.phpdt.internal.compiler.codegen.Label;
  14 import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
  15
  16 public abstract class BranchStatement extends Statement {
  17         public Expression expression;
  18
  19         public Label targetLabel;
  20
  21         public ASTNode[] subroutines;
  22
  23         /**
  24          * BranchStatement constructor comment.
  25          */
  26         public BranchStatement(Expression expr, int s, int e) {
  27                 expression = expr;
  28                 sourceStart = s;
  29                 sourceEnd = e;
  30         }
  31
  32         /**
  33          * Branch code generation
  34          *
  35          * generate the finallyInvocationSequence.
  36          */
  37         // public void generateCode(BlockScope currentScope, CodeStream codeStream)
  38         // {
  39         //
  40         // if ((bits & IsReachableMASK) == 0) {
  41         // return;
  42         // }
  43         // int pc = codeStream.position;
  44         //
  45         // // generation of code responsible for invoking the finally
  46         // // blocks in sequence
  47         // if (subroutines != null){
  48         // for (int i = 0, max = subroutines.length; i < max; i++){
  49         // ASTNode sub;
  50         // if ((sub = subroutines[i]) instanceof SynchronizedStatement){
  51         // codeStream.load(((SynchronizedStatement)sub).synchroVariable);
  52         // codeStream.monitorexit();
  53         // } else {
  54         // TryStatement trySub = (TryStatement) sub;
  55         // if (trySub.subRoutineCannotReturn) {
  56         // codeStream.goto_(trySub.subRoutineStartLabel);
  57         // codeStream.recordPositionsFrom(pc, this.sourceStart);
  58         // return;
  59         // } else {
  60         // codeStream.jsr(trySub.subRoutineStartLabel);
  61         // }
  62         // }
  63         // }
  64         // }
  65         // codeStream.goto_(targetLabel);
  66         // codeStream.recordPositionsFrom(pc, this.sourceStart);
  67         // }
  68         public void resetStateForCodeGeneration() {
  69                 if (this.targetLabel != null) {
  70                         this.targetLabel.resetStateForCodeGeneration();
  71                 }
  72         }
  73
  74         public void resolve(BlockScope scope) {
  75         }
  76
  77 }