Don't release fields of a callback

If submessage array is a callback, there's nothing to release.

2 files changed, 19 insertions, 0 deletions

diff --git a/tests/mem_release/mem_release.c b/tests/mem_release/mem_release.c
index eb62cad..6e06da5 100644
--- a/tests/mem_release/mem_release.c
+++ b/tests/mem_release/mem_release.c
@@ -177,6 +177,11 @@ static bool test_OneofMessage()
     return true;
 }
 
+static bool dummy_decode_cb(pb_istream_t *stream, const pb_field_t *field, void **arg)
+{
+    return false;
+}
+
 /* Garbage input */
 static bool test_Garbage()
 {
@@ -195,6 +200,14 @@ static bool test_Garbage()
         TEST(!pb_decode(&stream, TestMessage_fields, &msg));
     }
 
+    {
+        RepeatedMessage msg = RepeatedMessage_init_zero;
+        pb_istream_t stream = pb_istream_from_buffer(buffer, msgsize);
+        msg.subs.arg = NULL;
+        msg.subs.funcs.decode = dummy_decode_cb;
+        TEST(!pb_decode(&stream, RepeatedMessage_fields, &msg));
+    }
+
     return true;
 }
 
diff --git a/tests/mem_release/mem_release.proto b/tests/mem_release/mem_release.proto
index 0816dc2..b0addbd 100644
--- a/tests/mem_release/mem_release.proto
+++ b/tests/mem_release/mem_release.proto
@@ -33,3 +33,9 @@ message OneofMessage
     }
     required int32 last = 4;
 }
+
+message RepeatedMessage
+{
+    required int32 first = 1;
+    repeated SubMessage subs = 2;
+}