From ba7d08a7631a6e7ee4685f4a893bb69ac6151aab Mon Sep 17 00:00:00 2001
From: aclement <aclement>
Date: Fri, 22 Aug 2008 19:07:49 +0000
Subject: [PATCH] incorrectly removed this code - although it needs changing,
 it needs null checks, not instanceof checks

---
 .../ui/internal/TreeStructureViewBuilder.java | 45 ++++++++++++-------
 1 file changed, 30 insertions(+), 15 deletions(-)

diff --git a/ajde/src/org/aspectj/ajde/ui/internal/TreeStructureViewBuilder.java b/ajde/src/org/aspectj/ajde/ui/internal/TreeStructureViewBuilder.java
index c187fe3c2..5b312fd25 100644
--- a/ajde/src/org/aspectj/ajde/ui/internal/TreeStructureViewBuilder.java
+++ b/ajde/src/org/aspectj/ajde/ui/internal/TreeStructureViewBuilder.java
@@ -386,26 +386,41 @@ public class TreeStructureViewBuilder {
         public int compare(Object o1, Object o2) {  
         	IProgramElement sv1 = ((IStructureViewNode)o1).getStructureNode();
         	IProgramElement sv2 = ((IStructureViewNode)o2).getStructureNode();        
-			if (sv1.getKind() == IProgramElement.Kind.IMPORT_REFERENCE) return 1;
-			if (sv2.getKind() == IProgramElement.Kind.IMPORT_REFERENCE) return -1;        	
-			return sv1.getName().compareTo(sv2.getName());
+			
+            if (sv1 instanceof IProgramElement && sv2 instanceof IProgramElement) {
+         
+            	IProgramElement p1 = (IProgramElement)sv1;
+            	IProgramElement p2 = (IProgramElement)sv2;
+            	
+				if (p2.getKind() == IProgramElement.Kind.IMPORT_REFERENCE) return 1;
+				if (p1.getKind() == IProgramElement.Kind.IMPORT_REFERENCE) return -1;
+            	
+				return p1.getName().compareTo(p2.getName());
+            } else {
+            	return 0;	
+           }
         }
     };
     
     private static final Comparator DECLARATIONAL_COMPARATOR = new Comparator() {
         public int compare(Object o1, Object o2) {            
-        	IProgramElement p1 = ((IStructureViewNode)o1).getStructureNode();
-        	IProgramElement p2 = ((IStructureViewNode)o2).getStructureNode();   
-        	
-        	if (p2.getKind() == IProgramElement.Kind.IMPORT_REFERENCE) return 1;
-			if (p1.getKind() == IProgramElement.Kind.IMPORT_REFERENCE) return -1;
-        	if (p1.getSourceLocation() == null || p2.getSourceLocation() == null) {
-        		return 0;
-        	} else if (p1.getSourceLocation().getLine() < p2.getSourceLocation().getLine()) {
-        		return -1;
-        	} else {
-        		return 1;
-        	}
+        	IProgramElement sv1 = ((IStructureViewNode)o1).getStructureNode();
+        	IProgramElement sv2 = ((IStructureViewNode)o2).getStructureNode();        
+            if (sv1 instanceof IProgramElement && sv2 instanceof IProgramElement) {
+            	IProgramElement p1 = (IProgramElement)sv1;
+            	IProgramElement p2 = (IProgramElement)sv2;
+            	if (p2.getKind() == IProgramElement.Kind.IMPORT_REFERENCE) return 1;
+				if (p1.getKind() == IProgramElement.Kind.IMPORT_REFERENCE) return -1;
+            	if (p1.getSourceLocation() == null || p2.getSourceLocation() == null) {
+            		return 0;
+            	} else if (p1.getSourceLocation().getLine() < p2.getSourceLocation().getLine()) {
+            		return -1;
+            	} else {
+            		return 1;
+            	}
+            } else {
+            	return 0;	
+           }
         }
     };
 }
-- 
2.39.5