From: Robert Dober <robert.dober@...>
Date: 2008-02-14T05:30:57+09:00
Subject: Re: [RRR] Robert's Ruby Riddle: Local or Method

On Feb 13, 2008 7:31 PM, Martin DeMello <martindemello@gmail.com> wrote:
> On Feb 13, 2008 9:08 PM, Robert Dober <robert.dober@gmail.com> wrote:
> >
> > Can the following code be used to test if the argument of puts is the
> > local variable "a" or the method "a"? And if so please explain how.
> >
> > <code>
> > a = 42
> > def a; 42 end
> > puts a
> > </code>
> > I leave some blank lines here so that people can reply without
> > spoiling if for other readers.
>
> Here be spoiler:
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> martin@dabba ~ $ cat puzzle.rb
> a = 42
> def a; 42 end
> puts a
>
> martin@dabba ~ $ ruby -r profile puzzle.rb 2>&1 | grep "Object#a"
>
> martin@dabba ~ $ tail -2 puzzle.rb > puzzle1.rb
>
> martin@dabba ~ $ cat puzzle1.rb
> def a; 42 end
> puts a
>
> martin@dabba ~ $ ruby -r profile puzzle1.rb 2>&1 | grep "Object#a"
>   0.00     0.13      0.00        1     0.00     0.00  Object#a
>
> martin
>
>
Bravo Martin, this is my preferred solution, another one would be the
debugger, but that is not worth the effort.
Too bad there are no prices, I just wanted to feature the profiler...

Cheers
Robert


-- 
http://ruby-smalltalk.blogspot.com/

---
Whereof one cannot speak, thereof one must be silent.
Ludwig Wittgenstein