From: Alexander Schofield <pcs3@...>
Date: 2002-02-23T13:40:53+09:00
Subject: Re: overriding operator 'or'

Exactly, just for the archives though:
irb(main):001:0> class C
irb(main):002:1> def or(other)
irb(main):003:2> puts 'boo!'
irb(main):004:2> end
irb(main):005:1> end
nil
irb(main):006:0> c = C.new
#<C:0x45fd6a0>
irb(main):007:0> c or 1
#<C:0x45fd6a0>
irb(main):008:0> c.or 1
boo!
nil


Phil Tomson wrote:
> 
> In article <a56b1s030fp@enews4.newsguy.com>,
> Phil Tomson <ptkwt@shell1.aracnet.com> wrote:
> >According to "Ruby in a Nutshell" pg 18, 'or' is a nonmethod operator
> >which cannot be overridden.  However, it seems that I CAN override the
> >'or' operator:
> >
> >irb(main):001:0> class Foo
> >irb(main):002:1>   def initialize(value)
> >irb(main):003:2>     @value = value
> >irb(main):004:2>   end
> >irb(main):005:1>   def or(other)
> >irb(main):006:2>     @value or other
> >irb(main):007:2>   end
> >irb(main):008:1> end
> >nil
> >irb(main):009:0> myfoo = Foo.new(1)
> >#<Foo:0x40202290  @value=1>
> >irb(main):012:0> p myfoo or 0
> >#<Foo:0x40202290  @value=1>
> >0
> >
> 
> A little more investigation reveals that 'or' was not really overridden in
> the code above.  The original 'or' is still being called.
> 
> Phil