Re: [pygccxml-development] typedef lookup feature from long ago...

[Roman Y. <rom...@gm...>]

On 6/20/06, Allen Bierbaum <al...@vr...> wrote:
> Roman Yakovenko wrote:
>
> > On 5/31/06, Allen Bierbaum <al...@vr...> wrote:
> >
> >> Roman:
> >>
> >> Taking into account that you will be out of contact soon, there is one
> >> feature I know I am going to need that I used in the old prototype API.
> >> I must apologize that I don't remember the exact details, but what it
> >> boiled down to was being able to lookup a full resolved type from a
> >> typedef.
> >>
> >> So if I had something like:
> >>
> >> typedef really_complex< nested<int>, ugly<long>, 56> simple_t;
> >>
> >> I would need to be able to look it up from simple_t to get the type
> >> information.  It is the mTypeDefMap inside the old pypp_api (it is still
> >> in experimental).
> >>
> >> The code to look at is in parse() at the end:
> >>
> >>       typedef_decls = declarations.make_flatten(parsed_decls)
> >>       typedef_decls = decls = filter( lambda x: (isinstance( x,
> >> declarations.typedef_t ) and
> >>                                                  not
> >> x.name.startswith('__') and
> >>                                                  x.location.file_name !=
> >> "<internal>")
> >>                                       , typedef_decls )
> >>
> >>       self.mTypeDefMap = {}
> >>       for d in typedef_decls:
> >>          type_def_name = d.name
> >>          full_name = declarations.full_name(d)
> >>          if full_name.startswith("::"):    # Remove the base namespace
> >>             full_name = full_name[2:]
> >>          real_type_name = d.type.decl_string
> >>          if real_type_name.startswith("::"):    # Remove base namespace
> >>             real_type_name = real_type_name[2:]
> >>          self.mTypeDefMap[full_name] = real_type_name
> >>
> >>
> >> So my question is, do I have another "easy" way to do this with the
> >> current API?
> >
> >
> > Typedef class has 2 properties: name and type. I believe type is what
> > you are looking for.
>
> .type is the correct type, but it is not the decl_wrapper for the type
> that the typedef aliases.
>
> For example:
>
> typedef really_complex< nested<int>, ugly<long>, 56> simple_t;
>
> td = ns.typedef("simple_t")
>
> td is a pygccxml.declarations.cpptypes.declared_t and
> td.declaration is a pyplusplus.decl_wrapper.typedef_wrapper.typedef_t
> but what I want is the class_wrapper for "really_complex< nested<int>,
> ugly<long>, 56>".  How do I get to this object?

td.type.declaration ?

May be it is a time to send me small script, so I will be able to
provide you a solution.
It seems to me that we have small misunderstanding

> -Allen
>
> >
> >> I probably won't need it until this weekend or the beginning of next
> >> week, but if you are going to get busy I wanted to ask before you have
> >> better things to do then answer e-mails from pesky people like me. :)
> >
> >
> > :-)
> >
> >> -Allen
> >>
> >>
> >
> >
>
>


-- 
Roman Yakovenko
C++ Python language binding
http://www.language-binding.net/