New upb_msg code and Lua bindings around it.

There are still some things that are unfinished,
but we are at parity with what Lua had before.

1 files changed, 14 insertions, 1 deletions

diff --git a/upb/def.c b/upb/def.c
index 92e89e0..bd8c129 100644
--- a/upb/def.c
+++ b/upb/def.c
@@ -133,7 +133,8 @@ upb_def *upb_def_dup(const upb_def *def, const void *o) {
     case UPB_DEF_ENUM:
       return upb_enumdef_upcast_mutable(
           upb_enumdef_dup(upb_downcast_enumdef(def), o));
-    default: UPB_ASSERT(false); return NULL;
+    default:
+      UPB_UNREACHABLE();
   }
 }
 
@@ -283,6 +284,7 @@ static bool assign_msg_indices(upb_msgdef *m, upb_status *s) {
   /* Sort fields.  upb internally relies on UPB_TYPE_MESSAGE fields having the
    * lowest indexes, but we do not publicly guarantee this. */
   upb_msg_field_iter j;
+  upb_msg_oneof_iter k;
   int i;
   uint32_t selector;
   int n = upb_msgdef_numfields(m);
@@ -367,6 +369,13 @@ static bool assign_msg_indices(upb_msgdef *m, upb_status *s) {
 #undef TRY
 #endif
 
+  for(upb_msg_oneof_begin(&k, m), i = 0;
+      !upb_msg_oneof_done(&k);
+      upb_msg_oneof_next(&k), i++) {
+    upb_oneofdef *o = upb_msg_iter_oneof(&k);
+    o->index = i;
+  }
+
   upb_gfree(fields);
   return true;
 }
@@ -1833,6 +1842,10 @@ int upb_oneofdef_numfields(const upb_oneofdef *o) {
   return upb_strtable_count(&o->ntof);
 }
 
+uint32_t upb_oneofdef_index(const upb_oneofdef *o) {
+  return o->index;
+}
+
 bool upb_oneofdef_addfield(upb_oneofdef *o, upb_fielddef *f,
                            const void *ref_donor,
                            upb_status *s) {