From: Intransition <transfire@...>
Date: 2011-10-25T03:38:05+09:00
Subject: [ruby-core:40309] Re: set_trace_func changed?



On Oct 24, 1:15�pm, SASADA Koichi <k...@atdot.net> wrote:
> (2011/10/23 8:41), Intransition wrote:
> > Did something change about `set_trace_func` between 1.8.7 and 1.9.3?
>
> > One of my programs quite working. Here is the basic spec:
>
> > �https://github.com/rubyworks/tracepoint/blob/master/spec/trace.rdoc
>
> > This works fine in 1.8.7 but not in 1.9.3.
>
> > I'm wondering if I should file a bug report.
>
> From 1.9, we skip method invocation on Fixnum#+.

It appears to be more than that. I traced the issue to the binding
(`b` below).

  $ cat t.rb
  fn = lambda do |e, f, l, m, b, k|
    p Kernel.eval('self', b)
  end
  set_trace_func(fn)
  "  a  ".strip

  $ rbenv shell 1.8.7-p352
  $ ruby t.rb
  main
  "  a  "
  "  a  "

  $ rbenv shell 1.9.3-rc1
  $ ruby t.rb
  main
  main
  main
  main