From: ts <decoux@...>
Date: 2003-11-14T01:40:55+09:00
Subject: Re: Problem with exception class and instance vars

>>>>> "B" == Bennett, Patrick <Patrick.Bennett@inin.com> writes:

B> What am I doing wrong?

 Difficult to say : probably ruby don't like C++ :-))

svg% cat aa.c
#include <ruby.h>

static VALUE evx;

static VALUE
aa_tt(obj)
    VALUE obj;
{
    VALUE thr = rb_exc_new2(evx, "<exception>");
    rb_iv_set(thr, "@event", rb_str_new2("<string>"));
    rb_iv_set(thr, "@msg", rb_str_new2("<another string>"));
    rb_exc_raise(thr);
}

static VALUE
aa_event(obj)
    VALUE obj;
{
    return rb_iv_get(obj, "@event");
}

static VALUE
aa_msg(obj)
    VALUE obj;
{
    return rb_iv_get(obj, "@msg");
}

void Init_aa()
{
    evx = rb_define_class("EventException", rb_eStandardError);
    rb_define_method(evx, "event", aa_event, 0);
    rb_define_method(evx, "msg", aa_msg, 0);
    rb_define_global_function("tt", aa_tt, 0);
}
svg% 

svg% cat b.rb
#!/usr/bin/ruby
require 'aa'
begin
   tt
rescue EventException => ex
    puts "Event : #{ex.event} Msg : #{ex.msg} Exception : #{ex}"
end
svg% 

svg% b.rb
Event : <string> Msg : <another string> Exception : <exception>
svg% 



Guy Decoux