Removed unnecessary struct definition with "int a".

google/protobuf/descriptor.upb.h

@@ -16,33 +16,60 @@
 #include "upb/port_def.inc"
 UPB_BEGIN_EXTERN_C
 
-typedef struct google_protobuf_FileDescriptorSet { int a; } google_protobuf_FileDescriptorSet;
-typedef struct google_protobuf_FileDescriptorProto { int a; } google_protobuf_FileDescriptorProto;
-typedef struct google_protobuf_DescriptorProto { int a; } google_protobuf_DescriptorProto;
-typedef struct google_protobuf_DescriptorProto_ExtensionRange { int a; } google_protobuf_DescriptorProto_ExtensionRange;
-typedef struct google_protobuf_DescriptorProto_ReservedRange { int a; } google_protobuf_DescriptorProto_ReservedRange;
-typedef struct google_protobuf_ExtensionRangeOptions { int a; } google_protobuf_ExtensionRangeOptions;
-typedef struct google_protobuf_FieldDescriptorProto { int a; } google_protobuf_FieldDescriptorProto;
-typedef struct google_protobuf_OneofDescriptorProto { int a; } google_protobuf_OneofDescriptorProto;
-typedef struct google_protobuf_EnumDescriptorProto { int a; } google_protobuf_EnumDescriptorProto;
-typedef struct google_protobuf_EnumDescriptorProto_EnumReservedRange { int a; } google_protobuf_EnumDescriptorProto_EnumReservedRange;
-typedef struct google_protobuf_EnumValueDescriptorProto { int a; } google_protobuf_EnumValueDescriptorProto;
-typedef struct google_protobuf_ServiceDescriptorProto { int a; } google_protobuf_ServiceDescriptorProto;
-typedef struct google_protobuf_MethodDescriptorProto { int a; } google_protobuf_MethodDescriptorProto;
-typedef struct google_protobuf_FileOptions { int a; } google_protobuf_FileOptions;
-typedef struct google_protobuf_MessageOptions { int a; } google_protobuf_MessageOptions;
-typedef struct google_protobuf_FieldOptions { int a; } google_protobuf_FieldOptions;
-typedef struct google_protobuf_OneofOptions { int a; } google_protobuf_OneofOptions;
-typedef struct google_protobuf_EnumOptions { int a; } google_protobuf_EnumOptions;
-typedef struct google_protobuf_EnumValueOptions { int a; } google_protobuf_EnumValueOptions;
-typedef struct google_protobuf_ServiceOptions { int a; } google_protobuf_ServiceOptions;
-typedef struct google_protobuf_MethodOptions { int a; } google_protobuf_MethodOptions;
-typedef struct google_protobuf_UninterpretedOption { int a; } google_protobuf_UninterpretedOption;
-typedef struct google_protobuf_UninterpretedOption_NamePart { int a; } google_protobuf_UninterpretedOption_NamePart;
-typedef struct google_protobuf_SourceCodeInfo { int a; } google_protobuf_SourceCodeInfo;
-typedef struct google_protobuf_SourceCodeInfo_Location { int a; } google_protobuf_SourceCodeInfo_Location;
-typedef struct google_protobuf_GeneratedCodeInfo { int a; } google_protobuf_GeneratedCodeInfo;
-typedef struct google_protobuf_GeneratedCodeInfo_Annotation { int a; } google_protobuf_GeneratedCodeInfo_Annotation;
+struct google_protobuf_FileDescriptorSet;
+struct google_protobuf_FileDescriptorProto;
+struct google_protobuf_DescriptorProto;
+struct google_protobuf_DescriptorProto_ExtensionRange;
+struct google_protobuf_DescriptorProto_ReservedRange;
+struct google_protobuf_ExtensionRangeOptions;
+struct google_protobuf_FieldDescriptorProto;
+struct google_protobuf_OneofDescriptorProto;
+struct google_protobuf_EnumDescriptorProto;
+struct google_protobuf_EnumDescriptorProto_EnumReservedRange;
+struct google_protobuf_EnumValueDescriptorProto;
+struct google_protobuf_ServiceDescriptorProto;
+struct google_protobuf_MethodDescriptorProto;
+struct google_protobuf_FileOptions;
+struct google_protobuf_MessageOptions;
+struct google_protobuf_FieldOptions;
+struct google_protobuf_OneofOptions;
+struct google_protobuf_EnumOptions;
+struct google_protobuf_EnumValueOptions;
+struct google_protobuf_ServiceOptions;
+struct google_protobuf_MethodOptions;
+struct google_protobuf_UninterpretedOption;
+struct google_protobuf_UninterpretedOption_NamePart;
+struct google_protobuf_SourceCodeInfo;
+struct google_protobuf_SourceCodeInfo_Location;
+struct google_protobuf_GeneratedCodeInfo;
+struct google_protobuf_GeneratedCodeInfo_Annotation;
+typedef struct google_protobuf_FileDescriptorSet google_protobuf_FileDescriptorSet;
+typedef struct google_protobuf_FileDescriptorProto google_protobuf_FileDescriptorProto;
+typedef struct google_protobuf_DescriptorProto google_protobuf_DescriptorProto;
+typedef struct google_protobuf_DescriptorProto_ExtensionRange google_protobuf_DescriptorProto_ExtensionRange;
+typedef struct google_protobuf_DescriptorProto_ReservedRange google_protobuf_DescriptorProto_ReservedRange;
+typedef struct google_protobuf_ExtensionRangeOptions google_protobuf_ExtensionRangeOptions;
+typedef struct google_protobuf_FieldDescriptorProto google_protobuf_FieldDescriptorProto;
+typedef struct google_protobuf_OneofDescriptorProto google_protobuf_OneofDescriptorProto;
+typedef struct google_protobuf_EnumDescriptorProto google_protobuf_EnumDescriptorProto;
+typedef struct google_protobuf_EnumDescriptorProto_EnumReservedRange google_protobuf_EnumDescriptorProto_EnumReservedRange;
+typedef struct google_protobuf_EnumValueDescriptorProto google_protobuf_EnumValueDescriptorProto;
+typedef struct google_protobuf_ServiceDescriptorProto google_protobuf_ServiceDescriptorProto;
+typedef struct google_protobuf_MethodDescriptorProto google_protobuf_MethodDescriptorProto;
+typedef struct google_protobuf_FileOptions google_protobuf_FileOptions;
+typedef struct google_protobuf_MessageOptions google_protobuf_MessageOptions;
+typedef struct google_protobuf_FieldOptions google_protobuf_FieldOptions;
+typedef struct google_protobuf_OneofOptions google_protobuf_OneofOptions;
+typedef struct google_protobuf_EnumOptions google_protobuf_EnumOptions;
+typedef struct google_protobuf_EnumValueOptions google_protobuf_EnumValueOptions;
+typedef struct google_protobuf_ServiceOptions google_protobuf_ServiceOptions;
+typedef struct google_protobuf_MethodOptions google_protobuf_MethodOptions;
+typedef struct google_protobuf_UninterpretedOption google_protobuf_UninterpretedOption;
+typedef struct google_protobuf_UninterpretedOption_NamePart google_protobuf_UninterpretedOption_NamePart;
+typedef struct google_protobuf_SourceCodeInfo google_protobuf_SourceCodeInfo;
+typedef struct google_protobuf_SourceCodeInfo_Location google_protobuf_SourceCodeInfo_Location;
+typedef struct google_protobuf_GeneratedCodeInfo google_protobuf_GeneratedCodeInfo;
+typedef struct google_protobuf_GeneratedCodeInfo_Annotation google_protobuf_GeneratedCodeInfo_Annotation;
 
 /* Enums */
 

tools/make_c_api.lua

@@ -343,7 +343,12 @@ local function write_h_file(filedef, append)
   -- Forward-declare types defined in this file.
   for msg in filedef:defs(upb.DEF_MSG) do
     local msgname = to_cident(msg:full_name())
-    append('typedef struct %s { int a; } %s;\n', msgname, msgname)
+    append('struct %s;\n', msgname)
+  end
+
+  for msg in filedef:defs(upb.DEF_MSG) do
+    local msgname = to_cident(msg:full_name())
+    append('typedef struct %s %s;\n', msgname, msgname)
   end
 
   -- Forward-declare types not in this file, but used as submessages.