# Re: instance\_eva()l-ing a proc with parameters

**URL:** <https://www.ruby-forum.com/t/re-instance-eva-l-ing-a-proc-with-parameters/70769>\
**Category:** Ruby\
**Created:** [October 2, 2006, 9:17pm UTC](https://www.ruby-forum.com/t/re-instance-eva-l-ing-a-proc-with-parameters/70769 "2006-10-02T21:17:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Gennady\_B](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/c57346/32.png) [@Gennady\_B](https://www.ruby-forum.com/u/Gennady_B)\
**Post date:** [October 2, 2006, 9:17pm UTC](https://www.ruby-forum.com/t/re-instance-eva-l-ing-a-proc-with-parameters/70769/1 "2006-10-02T21:17:52Z")

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Logan C. wrote:

> [eigenclass.org](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.