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

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

diff --git a/src/org/eclipse/jdt/internal/compiler/flow/LabelFlowContext.java b/src/org/eclipse/jdt/internal/compiler/flow/LabelFlowContext.java
new file mode 100644 (file)
index 0000000..0d83e74
--- /dev/null
+++ b/src/org/eclipse/jdt/internal/compiler/flow/LabelFlowContext.java
@@ -0,0 +1,61 @@
+/*******************************************************************************
+ * 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.core.compiler.CharOperation;
+import org.eclipse.jdt.internal.compiler.ast.ASTNode;
+import org.eclipse.jdt.internal.compiler.codegen.Label;
+import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
+
+/**
+ * Reflects the context of code analysis, keeping track of enclosing
+ *     try statements, exception handlers, etc...
+ */
+public class LabelFlowContext extends SwitchFlowContext {
+       
+       public char[] labelName;
+       
+       public LabelFlowContext(
+               FlowContext parent,
+               ASTNode associatedNode,
+               char[] labelName,
+               Label breakLabel,
+               BlockScope scope) {
+                       
+               super(parent, associatedNode, breakLabel);
+               this.labelName = labelName;
+               checkLabelValidity(scope);
+       }
+
+       void checkLabelValidity(BlockScope scope) {
+               
+               // check if label was already defined above
+               FlowContext current = parent;
+               while (current != null) {
+                       char[] currentLabelName;
+                       if (((currentLabelName = current.labelName()) != null)
+                               && CharOperation.equals(currentLabelName, labelName)) {
+                               scope.problemReporter().alreadyDefinedLabel(labelName, associatedNode);
+                       }
+                       current = current.parent;
+               }
+       }
+
+       public String individualToString() {
+
+               return "Label flow context [label:" + String.valueOf(labelName) + "]"; //$NON-NLS-2$ //$NON-NLS-1$
+       }
+
+       public char[] labelName() {
+
+               return labelName;
+       }
+}