Add support for POINTER type in extensions

1 files changed, 12 insertions, 1 deletions

diff --git a/pb_encode.c b/pb_encode.c
index cdd78955..5318361e 100644
--- a/pb_encode.c
+++ b/pb_encode.c
@@ -302,7 +302,18 @@ static bool checkreturn default_extension_encoder(pb_ostream_t *stream,
     const pb_extension_t *extension)
 {
     const pb_field_t *field = (const pb_field_t*)extension->type->arg;
-    return encode_field(stream, field, extension->dest);
+    
+    if (PB_ATYPE(field->type) == PB_ATYPE_POINTER)
+    {
+        /* For pointer extensions, the pointer is stored directly
+         * in the extension structure. This avoids having an extra
+         * indirection. */
+        return encode_field(stream, field, &extension->dest);
+    }
+    else
+    {
+        return encode_field(stream, field, extension->dest);
+    }
 }
 
 /* Walk through all the registered extensions and give them a chance