Fixing crashed when used with tgz file.

File used: ftp://anonymous@ftp.astron.com/pub/file/file-5.11.tar.gz
aidansteele · Oct 16, 2012 · 049182e · 049182e
1 parent 3fd85b1
commit 049182e
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/GEMagicKit.m b/GEMagicKit.m
@@ -124,9 +124,12 @@ + (NSArray *)typeHierarchyForType:(NSString *)uniformType {
             NSArray *superTypeHierarchy = [GEMagicKit typeHierarchyForType:superType];
             [typeHierarchy addObjectsFromArray:superTypeHierarchy];
         }
-    } else {
-        typeHierarchy = [NSArray arrayWithObject:superTypes]; // superTypes is actually a string
+    } else if ([superTypes isKindOfClass:[NSString class]]) {
+        typeHierarchy = [NSArray arrayWithObject:superTypes];
     }
+	else {
+		typeHierarchy = nil;
+	}
 
     return typeHierarchy;
 }