[ruby-core:46551] Re: [ruby-trunk - Bug #6724][Open] waaaaaaant! (

On Wed, Jul 18, 2012 at 09:13:45AM +0900, Luis Lavena wrote:
> On Tue, Jul 17, 2012 at 6:27 PM, Aaron Patterson
> <[e-mail]> wrote:
> >
> >     class RubyVM
> >       class InstructionSequence
> >         address = DL::Handle::DEFAULT['rb_iseq_load']
> >         func = Fiddle::Function.new(address, [DL::TYPE_VOIDP] * 3, DL::TYPE_VOIDP)
> >
> >         define_singleton_method(:load) do |data, parent = nil, opt = nil|
> >           func.call(DL.dlwrap(data), parent, opt).to_value
> >         end
> >       end
> >     end
> >
> 
> For some reason ::DEFAULT doesn't work on windows, so a bit of tweak:
> 
>     require 'rbconfig'
>     require 'dl'
>     require 'fiddle'
>     require 'minitest/autorun'
> 
>     class RubyVM
>       class InstructionSequence
>         handle = DL::Handle.new(RbConfig::CONFIG["RUBY_SO_NAME"])
>         address = handle['rb_iseq_load']
>         func = Fiddle::Function.new(address, [DL::TYPE_VOIDP] * 3,
> DL::TYPE_VOIDP)
> 
>         define_singleton_method(:load) do |data, parent = nil, opt = nil|
>           func.call(DL.dlwrap(data), parent, opt).to_value
>         end
>       end
>     end
> 
>     class TestISeq < MiniTest::Unit::TestCase
>       def test_load
>         ins   = RubyVM::InstructionSequence.new '5 + 10'
>         other = RubyVM::InstructionSequence.load ins.to_a
>         assert_equal ins.eval, other.eval
>       end
>     end
> 
> That or simply: DL::Handle.new (no argument) which will resolve to libruby DLL.

Glad we could get this working on windows! ;-)

As a side note, maybe we should fix DEFAULT?  Any ideas what's wrong on
windows?

-- 
Aaron Patterson
http://tenderlovemaking.com/