[ruby-talk:11129] Re: Auto-magically determine your class/method in Ruby

My caller only version is regex nasty and relies upon
the thought that only one class per file and that the
class and file are the same names. Although if you
want to base it on class versus file than you would
not care.

Here was my idea:

stackLine =  caller(1)[0]
stackLine=~/(\w*)\.rb\:(\w*)\:\s*in\s*\`(\w*)'/
# Where 1=file/class name, 2=line number, 3=method
eventLine =  "#{$1} #{$3}(#{$2}) - [#{Time.new}]
\"#{message}\" #{logType} -\n"




--- Robert Feldt <[e-mail]> wrote:
> On Tue, 20 Feb 2001, Bryan Zarnett wrote:
> 
> > I agree, having the calling class as part of
> caller
> > would be great. Having the line number their is an
> > excellent bonus!!!
> > 
> BTW, here's my solution. Difference to Daves
> solution is that it doesn't
> require any change to the caller. But it might not
> work if you've got
> other trace functions installed and its uglier.
> Anyway:
> 
> def calling_object(&b)
>   set_trace_func proc{ |event, file, line, id,
> binding, classname|
>     case event
>     when "return"
>       if !(id == :calling_object or classname ==
> self.type)
> 	b.call(id, classname, file, line)
> 	set_trace_func(nil) # Restore old trace_func?!
>       end
>     end
>   }
> end
> 
> class Callee
>   def m1
>     calling_object { |method, klass, file, line|
>       puts "Callee#m1 called from #{klass}##{method}
> on line #{line} in
> file #{file}"
>     }
>   end
> end
> 
> class Caller
>   def m
>     Callee.new.m1
>   end
> end
> 
> Caller.new.m
> 
> and here's the output:
> 
> $ ruby -v calling_object.rb
> ruby 1.7.0 (2001-01-23) [i686-cygwin]
> Callee#m1 called from Caller#m on line 23 in file
> calling_object.rb
> 
> Regards,
> 
> Robert
> 


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