[ruby-core:44484] Re: [ruby-trunk - Feature #6315] handler to trace output of each line of code executed

Hi,

(2012/04/20 14:33), ankopainting (Anko Painting) wrote:
> It has an example, but I'll give you another one;
> 
> #!ruby
> #
> 
> set_trace_func2 proc { |event, file, line, id, binding, classname, return_value|
>   if event == "line"
>     STDERR.puts "#{line}: -> #{return_value.inspect}"
>   end
> }
> 
> i = 4
> words = %w!brat cat apple!.sort
> 
> # end of ruby
> 
> output;
> 10: -> 4
> 11: -> ["apple", "brat", "cat"]
> 
> 
> ------------------- 
> 
> This is my first, simple idea.  It would allow your editor to show all return values next to your lines of code by evaluating it all in the browser.
> 
> I will put in a few more set_trace_func feature requests when I can give decent examples to explain them.

Thank you.  I understand what you want.  However, I think it needs
performance drawback.  I'm not sure it is valuable feature or not
against slow down.

-- 
// SASADA Koichi at atdot dot net