Refactoring: unify upb_msg.

The cost is that a upb_msg will now always have an overhead
of 2*sizeof(void*).  This is comparable to proto2 overhead.
The benefit is that upb_msg is now self-describing, and
read-only algorithms can now operate on a upb_msg regardless
of the memory-management scheme.

Also, upb_array and upb_string now know inherently if they
own their associated memory, and upb_array has a generic
pointer for memory management purposes like upb_msg does.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/upb_text.h b/src/upb_text.h
index f35f8d8..32d7278 100644
--- a/src/upb_text.h
+++ b/src/upb_text.h
@@ -23,10 +23,10 @@ INLINE void upb_text_printer_init(struct upb_text_printer *p, bool single_line)
   p->single_line = single_line;
 }
 void upb_text_printval(upb_field_type_t type, union upb_value p, FILE *file);
-void upb_text_printfield(struct upb_text_printer *p, struct upb_string name,
+void upb_text_printfield(struct upb_text_printer *p, struct upb_string *name,
                          upb_field_type_t valtype, union upb_value val,
                          FILE *stream);
-void upb_text_push(struct upb_text_printer *p, struct upb_string submsg_type,
+void upb_text_push(struct upb_text_printer *p, struct upb_string *submsg_type,
                    FILE *stream);
 void upb_text_pop(struct upb_text_printer *p, FILE *stream);