Instance_eva()l-ing a proc with parameters

ruby-talk
1

Logan Capaldo wrote:

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On Tue, Oct 03, 2006 at 01:35:48AM +0900, Gennady Bystritsky wrote:

Dear friends,

I need to evaluate a proc within an instance context and would like
to pass it a parameter. The only straight forward way I found is to
use instance_eval(), however it does not allow to pass parameters to
a proc, only the instance itself is passed as a single parameter:

Google for instance_exec, there are various and sundry
implementations, including one built into rails.

http://eigenclass.org/hiki.rb?instance_exec has various
implementations and their respective strengths and weaknesses. Or you
can
just use ruby
1.9 where it's part of the core.

Thanks a lot, Logan. That's exactly what I need and what I have missed
completely here on the list when the discussion first came up.

It looks like I am better off sticking to my define_method() custom
solution for now, as instance_exec() uses the same approach anyway.

Thanks again,
Gennady.