Added Ruby to conformance tests.

This involved fixing a few important bugs in the
Ruby implementation -- mostly cases of mixing
upb field types and descriptor types (upb field
types do not distinguish between int/sint/fixed/sfixed
like descriptor types do).

Also added protobuf-specific exceptions so parse
errors can be caught specifically.

Change-Id: Ib49d3db976900b2c6f3455c8b88af52cfb86e036

1 files changed, 6 insertions, 0 deletions

diff --git a/ruby/ext/google/protobuf_c/protobuf.c b/ruby/ext/google/protobuf_c/protobuf.c
index d0625a10..ca0f7b7c 100644
--- a/ruby/ext/google/protobuf_c/protobuf.c
+++ b/ruby/ext/google/protobuf_c/protobuf.c
@@ -39,6 +39,9 @@
 // Ruby integers) to MessageDef/EnumDef instances (as Ruby values).
 VALUE upb_def_to_ruby_obj_map;
 
+VALUE cError;
+VALUE cParseError;
+
 void add_def_obj(const void* def, VALUE value) {
   rb_hash_aset(upb_def_to_ruby_obj_map, ULL2NUM((intptr_t)def), value);
 }
@@ -96,6 +99,9 @@ void Init_protobuf_c() {
   RepeatedField_register(protobuf);
   Map_register(protobuf);
 
+  cError = rb_const_get(protobuf, rb_intern("Error"));
+  cParseError = rb_const_get(protobuf, rb_intern("ParseError"));
+
   rb_define_singleton_method(protobuf, "deep_copy",
                              Google_Protobuf_deep_copy, 1);