From: "simeonwillbanks (Simeon Willbanks)" <sfw@...>
Date: 2013-12-07T01:32:22+09:00
Subject: [ruby-core:58916] [ruby-trunk - Feature #9190] Expose serial helper	macros


Issue #9190 has been updated by simeonwillbanks (Simeon Willbanks).


@charliesome and @tmm1, thanks for the support, and I concur. 

@nobu I've hacked together a gem.  It's an alpha version, and it depends upon this patch.

https://github.com/simeonwillbanks/busted

The gem is a continuation of the description's example.  Basically, an application wraps code in a block.  Once the block executes, it reports whether or not the constant or method cache was busted.  The tests have specific examples.

https://github.com/simeonwillbanks/busted/blob/master/test/busted_test.rb

Hope this helps.  If you have anymore questions, please ask.  Thanks!
----------------------------------------
Feature #9190: Expose serial helper macros
https://bugs.ruby-lang.org/issues/9190#change-43466

Author: simeonwillbanks (Simeon Willbanks)
Status: Feedback
Priority: Normal
Assignee: 
Category: core
Target version: 


I've defined RubyVM::InstructionHelper with singleton methods #method_serial and #constant_serial.  They delegate to helper macros GET_METHOD_SERIAL() and GET_CONSTANT_SERIAL().

With these methods, users have visibility into the method and constant caches.  If it makes sense, I hope this patch is included in Ruby 2.1.0.

def constants_busted?(&blk)
  starting = RubyVM::InstructionHelper.constant_serial
  yield
  ending = RubyVM::InstructionHelper.constant_serial
  ending > starting
end

busted = constants_busted? do
  class Foo; end
end
puts busted.inspect
# true 

https://github.com/ruby/ruby/pull/462.patch

Thanks for considering; any input is appreciated!


-- 
http://bugs.ruby-lang.org/