1 files changed, 10 insertions, 0 deletions
diff --git a/src/wasm.h b/src/wasm.h
index 199257925..4060bac4d 100644
--- a/src/wasm.h
+++ b/src/wasm.h
@@ -1872,6 +1872,16 @@ public:
   // Module name, if specified. Serves a documentary role only.
   Name name;
 
+  // Optional type name information, used in printing only. Note that Types are
+  // globally interned, but type names are specific to a module.
+  struct TypeNames {
+    // The name of the type.
+    Name name;
+    // For a Struct, names of fields.
+    std::unordered_map<Index, Name> fieldNames;
+  };
+  std::unordered_map<HeapType, TypeNames> typeNames;
+
   MixedArena allocator;
 
 private: