1 files changed, 13 insertions, 0 deletions
diff --git a/source/slang/slang-check-modifier.cpp b/source/slang/slang-check-modifier.cpp
index a7fb641a2..a2b411c22 100644
--- a/source/slang/slang-check-modifier.cpp
+++ b/source/slang/slang-check-modifier.cpp
@@ -226,6 +226,19 @@ namespace Slang
         attrDecl->parentDecl = parentDecl;
         parentDecl->members.add(attrDecl);
         
+        SLANG_ASSERT(!parentDecl->isMemberDictionaryValid());
+
+        // TODO(JS): A bit of a work around(!)
+        // 
+        // To get to this point we must have already have performed a lookup for attributeName, 
+        // and it failed. That lookup used the TypeCheckingCache, and 
+        // so we know there is a cache entry that will be *wrong*, now we have created and 
+        // added the AttributeDecl with the attributeName.
+        // 
+        // To work around, we remove all cached lookups around the name, such that when a subsequent 
+        // lookup is made, the cache will not return the old (wrong) result.
+        removeLookupForName(getLinkage()->getTypeCheckingCache(), attributeName);
+
         // Finally, we perform any required semantic checks on
         // the newly constructed attribute decl.
         //