removed Makefile; lifted repo/org.ibex.tool/src/ to src/

[org.ibex.tool.git] / src / org / eclipse / jdt / internal / compiler / flow / InsideSubRoutineFlowContext.java

diff --git a/src/org/eclipse/jdt/internal/compiler/flow/InsideSubRoutineFlowContext.java b/src/org/eclipse/jdt/internal/compiler/flow/InsideSubRoutineFlowContext.java
new file mode 100644 (file)
index 0000000..221666b
--- /dev/null
+++ b/src/org/eclipse/jdt/internal/compiler/flow/InsideSubRoutineFlowContext.java
@@ -0,0 +1,59 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.internal.compiler.flow;
+
+import org.eclipse.jdt.internal.compiler.ast.ASTNode;
+import org.eclipse.jdt.internal.compiler.ast.SubRoutineStatement;
+
+/**
+ * Reflects the context of code analysis, keeping track of enclosing
+ *     try statements, exception handlers, etc...
+ */
+public class InsideSubRoutineFlowContext extends FlowContext {
+
+       public UnconditionalFlowInfo initsOnReturn;
+       
+       public InsideSubRoutineFlowContext(
+               FlowContext parent,
+               ASTNode associatedNode) {
+               super(parent, associatedNode);
+               this.initsOnReturn = FlowInfo.DEAD_END;                         
+       }
+
+       public String individualToString() {
+               
+               StringBuffer buffer = new StringBuffer("Inside SubRoutine flow context"); //$NON-NLS-1$
+               buffer.append("[initsOnReturn -").append(initsOnReturn.toString()).append(']'); //$NON-NLS-1$
+               return buffer.toString();
+       }
+               
+       public UnconditionalFlowInfo initsOnReturn(){
+               return this.initsOnReturn;
+       }
+               
+       public boolean isNonReturningContext() {
+               return subRoutine().isSubRoutineEscaping();
+       }
+       
+       public SubRoutineStatement subRoutine() {
+               return (SubRoutineStatement)associatedNode;
+       }
+       
+       public void recordReturnFrom(FlowInfo flowInfo) {
+
+               if (!flowInfo.isReachable()) return; 
+               if (initsOnReturn == FlowInfo.DEAD_END) {
+                       initsOnReturn = flowInfo.copy().unconditionalInits();
+               } else {
+                       initsOnReturn = initsOnReturn.mergedWith(flowInfo.copy().unconditionalInits());
+               }
+       }
+}