From: nobu.nokada@...
Date: 2002-08-27T11:33:41+09:00
Subject: Re: Question about Ruby extension API

Hi,

At Tue, 27 Aug 2002 11:19:21 +0900,
nobu.nokada@softhome.net wrote:
> At Tue, 27 Aug 2002 06:45:04 +0900,
> Bennett, Patrick <Patrick.Bennett@inin.com> wrote:
> > I've looked all over but can't find the function call for
> > doing a simple assignment (!)
> 
> rb_gv_set() for global variables,
> rb_iv_set() for instance variables,
> rb_cv_set() for class variables.

I forgot rb_lastline_set() and rb_backref_set() for $_ and $~,
respectively.

> > Within a method (set via rb_define_method and later called by
> > the user), I would like to do the equivalent of:
> >    obj = otherobj.method
> > I tried calling rb_intern on "=", and using rb_funcall( obj,
> > (IdFromRBIntern), 1, (value from call of other method) ) but
> > I get an 'undefined method' error from ruby at runtime.
> 
> Assignment is not a method.

Of cource, you can use attr_writer, such as "foo=".

  rb_funcall(obj, rb_intern("foo="), 1, value);

-- 
Nobu Nakada