first scanner /parser copied from the jdt java version

[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / compiler / ast / BranchStatement.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/BranchStatement.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/BranchStatement.java
new file mode 100644 (file)
index 0000000..b28486a
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/BranchStatement.java
@@ -0,0 +1,66 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v0.5 
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v05.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ ******************************************************************************/
+package net.sourceforge.phpdt.internal.compiler.ast;
+
+import net.sourceforge.phpdt.internal.compiler.codegen.*;
+import net.sourceforge.phpdt.internal.compiler.lookup.*;
+
+public abstract class BranchStatement extends Statement {
+       public char[] label;
+       public Label targetLabel;
+       public AstNode[] subroutines;
+/**
+ * BranchStatement constructor comment.
+ */
+public BranchStatement(char[] l, int s,int e) {
+       label = l ;
+       sourceStart = s;
+       sourceEnd = e;
+}
+/**
+ * Branch code generation
+ *
+ *   generate the finallyInvocationSequence.
+ */
+public void generateCode(BlockScope currentScope, CodeStream codeStream) {
+
+       if ((bits & IsReachableMASK) == 0) {
+               return;
+       }
+       int pc = codeStream.position;
+
+       // generation of code responsible for invoking the finally 
+       // blocks in sequence
+       if (subroutines != null){
+               for (int i = 0, max = subroutines.length; i < max; i++){
+                       AstNode sub;
+                       if ((sub = subroutines[i]) instanceof SynchronizedStatement){
+                               codeStream.load(((SynchronizedStatement)sub).synchroVariable);
+                               codeStream.monitorexit(); 
+                       } else {
+                               TryStatement trySub = (TryStatement) sub;
+                               if (trySub.subRoutineCannotReturn)      {
+                                       codeStream.goto_(trySub.subRoutineStartLabel);
+                                       codeStream.recordPositionsFrom(pc, this.sourceStart);
+                                       return;
+                               } else {
+                                       codeStream.jsr(trySub.subRoutineStartLabel);
+                               }
+                       }
+               }
+       }
+       codeStream.goto_(targetLabel);
+       codeStream.recordPositionsFrom(pc, this.sourceStart);
+}
+public void resetStateForCodeGeneration() {
+       this.targetLabel.resetStateForCodeGeneration();
+}
+}