...

bindings/generate.py

@@ -19,6 +19,11 @@ def map_type(clang_type: Type):
 
     if kind == TypeKind.POINTER:
         pointee = canonical.get_pointee()
+        if pointee.kind == TypeKind.RECORD:
+            decl = pointee.get_declaration()
+            if not decl.is_definition():
+                return "^void"
+
         if pointee.kind == TypeKind.CHAR_S or pointee.kind == TypeKind.CHAR_U:
             return "cstring"
 
@@ -103,6 +108,8 @@ if tu.diagnostics:
 print(f'module "{os.path.basename(filename).split(".")[0]}"')
 print()
 
+seen_structs = []
+
 for cursor in tu.cursor.walk_preorder():
     if cursor.location.file and cursor.location.file.name != filename:
         continue
@@ -122,14 +129,20 @@ for cursor in tu.cursor.walk_preorder():
         print(f'export extern "{name}" func {name}({params_str}): {return_type}')
 
     elif cursor.kind == CursorKind.STRUCT_DECL:
-        name = cursor.spelling
-        print(f"export struct {name}")
-        print("{")
-        for field in cursor.get_children():
-            if field.kind == CursorKind.FIELD_DECL:
-                field_name = field.spelling
-                field_type = map_type(field.type)
-                print(f"    {field_name}: {field_type}")
-            else:
-                raise Exception(f"Unsupported child of struct: {field.spelling}")
-        print("}")
+        if cursor.get_usr() in seen_structs:
+            continue
+
+        seen_structs.append(cursor.get_usr())
+
+        if cursor.is_definition():
+            name = cursor.spelling
+            print(f"export struct {name}")
+            print("{")
+            for field in cursor.get_children():
+                if field.kind == CursorKind.FIELD_DECL:
+                    field_name = field.spelling
+                    field_type = map_type(field.type)
+                    print(f"    {field_name}: {field_type}")
+                else:
+                    raise Exception(f"Unsupported child of struct: {field.spelling}")
+            print("}")