Joel VanderWerf
9/12/2007 5:38:00 PM
Gustav Paul wrote:
> Hey
>
> Is there a way to log all the method calls that occur throughout the
> execution of some script? Something like an hook that gets called whenever a
> method executes would be ideal.
>
> Eg.
>
> class Object
> def before_method_called(method_name)
> p class.name + method_name.to_s
> end
> end
There's a heavy speed cost to this, but it's what your asking for...
ri set_trace_func | cat
-------------------------------------------------- Kernel#set_trace_func
set_trace_func(proc) => proc
set_trace_func(nil) => nil
------------------------------------------------------------------------
Establishes proc as the handler for tracing, or disables tracing
if the parameter is nil. proc takes up to six parameters: an event
name, a filename, a line number, an object id, a binding, and the
name of a class. proc is invoked whenever an event occurs. Events
are: c-call (call a C-language routine), c-return (return from a
C-language routine), call (call a Ruby method), class (start a
class or module definition), end (finish a class or module
definition), line (execute code on a new line), raise (raise an
exception), and return (return from a Ruby method). Tracing is
disabled within the context of proc.
class Test
def test
a = 1
b = 2
end
end
set_trace_func proc { |event, file, line, id, binding, classname|
printf "%8s %s:%-2d %10s %8s\n", event, file, line, id,
classname
}
t = Test.new
t.test
line prog.rb:11 false
c-call prog.rb:11 new Class
c-call prog.rb:11 initialize Object
c-return prog.rb:11 initialize Object
c-return prog.rb:11 new Class
line prog.rb:12 false
call prog.rb:2 test Test
line prog.rb:3 test Test
line prog.rb:4 test Test
return prog.rb:4 test Test
--
vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407