Moved enumeration name clean up code out of Transform.cs and into the CleanInvalidDeclNames pass.

src/Generator/Passes/CleanInvalidDeclNamesPass.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Linq;
 using Cxxi.Types;
 
@@ -120,6 +121,31 @@ namespace Cxxi.Passes
                     typedef.ExplicityIgnored = true;
             }
         }
+
+        private void CheckEnumName(Enumeration @enum)
+        {
+            // If we still do not have a valid name, then try to guess one
+            // based on the enum value names.
+
+            if (!String.IsNullOrWhiteSpace(@enum.Name))
+                return;
+
+            var prefix = @enum.Items.Select(item => item.Name)
+                .ToArray().CommonPrefix();
+
+            // Try a simple heuristic to make sure we end up with a valid name.
+            if (prefix.Length < 3)
+                return;
+
+            prefix = prefix.Trim().Trim(new char[] { '_' });
+            @enum.Name = prefix;
+        }
+
+        public override bool ProcessEnum(Enumeration @enum)
+        {
+            CheckEnumName(@enum);
+            return base.ProcessEnum(@enum);
+        }
     }
 
     public static class CleanInvalidDeclNamesExtensions

src/Generator/Transforms/Transform.cs

@@ -115,26 +115,6 @@ namespace Cxxi.Passes
                 foreach (var pass in Passes.Passes)
                     pass.ProcessEnumItem(item);
             }
-
-            // If we still do not have a valid name, then try to guess one
-            // based on the enum value names.
-
-            if (!String.IsNullOrWhiteSpace(@enum.Name))
-                return;
-
-            var names = new List<string>();
-
-            foreach (var item in @enum.Items)
-                names.Add(item.Name);
-
-            var prefix = names.ToArray().CommonPrefix();
-
-            // Try a simple heuristic to make sure we end up with a valid name.
-            if (prefix.Length >= 3)
-            {
-                prefix = prefix.Trim().Trim(new char[] { '_' });
-                @enum.Name = prefix;
-            }
         }
     }
 }