Re: [RFC 1/4] Add gdbpy_borrowed_ref

[Tom Tromey <tom@tromey.com>]

Tom> In fact all the casts I am aware are of 'self', which means we could
Tom> maybe solve this a special case: turn functions into methods on the
Tom> object, and then have the wrappers wrap a pointer-to-member-function.

Tom> This would mean that 'this' would be implicitly a borrowed reference,
Tom> but OTOH this isn't likely to be a big source of confusion and it would
Tom> make the code even simpler.

I wrote a draft of this & pushed it to my github branch.
I converted one file to this approach.  Now it looks like:

    struct arch_object : public PyObject
    {
    [...]
      const char *name ()
      {
        return gdbarch_bfd_arch_info (require ())->printable_name;
      }
    ...
    };

    static PyMethodDef arch_object_methods [] = {
      noargs_method<arch_object, &arch_object::name> ("name",
        "name () -> String.\n\
    Return the name of the architecture as a string value."),

I wish it could be a little more concise, but I'm not sure it can be
without a macro.

So maybe this is the way to go.

Tom