Add correctness asserts to upb_addmsg

5 years ago · d2389ba261
parent 2a25fd557e
commit d2389ba261
1 changed files with 4 additions and 0 deletions
--- a/upb/decode.c
+++ b/upb/decode.c
@ -249,6 +249,10 @@ static upb_msg *upb_addmsg(upb_decframe *frame,
  upb_msg *submsg;
  upb_array *arr = upb_getorcreatearr(frame, field);

+  UPB_ASSERT(field->label == UPB_LABEL_REPEATED);
+  UPB_ASSERT(field->descriptortype == UPB_DESCRIPTOR_TYPE_MESSAGE ||
+             field->descriptortype == UPB_DESCRIPTOR_TYPE_GROUP);
+
  *subm = frame->layout->submsgs[field->submsg_index];
  submsg = upb_msg_new(*subm, frame->state->arena);
  CHK(submsg);