From a105c015b106b6be31fc45fdd4c568684815801c Mon Sep 17 00:00:00 2001
From: Josh Haberman <jhaberman@gmail.com>
Date: Thu, 6 Sep 2018 23:16:58 -0700
Subject: Added support for unknown fields to upb_msg.

After this CL, upb passes all existing proto3 conformance tests.
However the conformance suite is missing a lot of cases and should
be fleshed out.
---
 upb/encode.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'upb/encode.c')

diff --git a/upb/encode.c b/upb/encode.c
index a9f2c0d..bff8262 100644
--- a/upb/encode.c
+++ b/upb/encode.c
@@ -331,6 +331,8 @@ bool upb_encode_message(upb_encstate *e, const char *msg,
                         const upb_msglayout *m, size_t *size) {
   int i;
   size_t pre_len = e->limit - e->ptr;
+  const char *unknown;
+  size_t unknown_size;
 
   for (i = m->field_count - 1; i >= 0; i--) {
     const upb_msglayout_field *f = &m->fields[i];
@@ -357,6 +359,12 @@ bool upb_encode_message(upb_encstate *e, const char *msg,
     }
   }
 
+  unknown = upb_msg_getunknown(msg, &unknown_size);
+
+  if (unknown) {
+    upb_put_bytes(e, unknown, unknown_size);
+  }
+
   *size = (e->limit - e->ptr) - pre_len;
   return true;
 }
-- 
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