Re: [Vala] vala-gen-introspect does not add my struct to *.gi file

[Anatol Pomozov <anatol pomozov gmail com>]

Hi,

I have a smaller repo case. On my Ubuntu 10.04 I run

/usr/local/lib/vala-0.10/gen-introspect-0.10 --namespace=Thrift
-I/usr/local/include/thrift -I/usr/include/glib-2.0
-I/usr/lib/glib-2.0/include
/usr/local/include/thrift/protocol/thrift_protocol.h
/usr/local/lib/libthrift_c_glib.so

It generates metadata for only 2 structures ThriftProtocolError and
ThriftProtocol. Why the tool does not generate information for other
structures such as ThriftType, ThriftMessageType and
ThriftProtocolClass.

http://github.com/anatol/thrift/blob/c_glib/lib/c_glib/src/protocol/thrift_protocol.h

I am really new to gtk OO style so I don't understand what is going on here.

On Fri, Oct 29, 2010 at 6:10 PM, Anatol Pomozov
<anatol pomozov gmail com> wrote:
> Hi, everyone. I have a question related to vala-gen-introspect tool.
>
> I am trying to add a Vala support for Apache Thrift
> http://incubator.apache.org/thrift/
> https://issues.apache.org/jira/browse/THRIFT-764
>
> Instead of writing a library I want to reuse glib based c based
> library for Thrift
> http://github.com/anatol/thrift/tree/c_glib/lib/c_glib/test/ and now I
> am working on Vala binding for this great library from Apache.
>
> I use http://live.gnome.org/Vala/Bindings page that shows how to
> create a .vapi file step-by-step. So I run
>
> $ vala-gen-introspect thrift_c_glib thrift
>
> It generates *.gi file http://pastie.org/1259281 which seems
> incorrect. What makes me think that it is incorrect is following
> command
>
> anatol:vala $ vapigen --library thrift thrift/thrift_c_glib.gi
> error: The type name `Thrift.ProtocolClass' could not be found
> error: The type name `Thrift.ProtocolFactoryClass' could not be found
> error: The type name `Thrift.ServerClass' could not be found
> error: The type name `Thrift.Type' could not be found
> .....
> error: The type name `Thrift.Type' could not be found
> error: The type name `Thrift.MessageType' could not be found
> Generation failed: 16 error(s), 0 warning(s)
>
> So vapigen cannot find Thrift.ProtocolClass class. If we look into
> *.gi file (see the pastie link) gi mentions it only once
>
> <struct name="ThriftBinaryProtocolClass">
>  <field name="parent" type="ThriftProtocolClass"/>
> </struct>
>
> But if you look at its definition here
> http://github.com/anatol/thrift/blob/c_glib/lib/c_glib/src/protocol/thrift_protocol.h
> you'll see
>
> /*!
>  * Thrift Protocol object
>  */
> struct _ThriftProtocol
> {
>  GObject parent;
>
>  /* protected */
>  ThriftTransport *transport;
> };
> typedef struct _ThriftProtocol ThriftProtocol;
>
> Which seems fine to me (it looks the same as ThriftBinaryProtocol definition).
>
> Could you help me to understand why the tool does not add
> ThriftProtocolClass to the known structures?
>
>
>
>
> One more question here: why this process has 2 steps? Why it generates
> *.gi file. Is it used some where else (outside of Vala API
> generation)?