From: Matt Maycock <ummaycoc@...>
Date: 2004-09-17T03:42:26+09:00
Subject: Re: Changing outside variables inside a proc

> Is there any way to change an outside-scoped object inside a proc? Such
> as:
>
> a = "Foo"
> b = "bar"
> proc = Proc.new { |val1, val2| val1, val2 = "boo", "baz" }
> proc.call( a, b )
>
> # a and b are still "Foo" and "bar"
>
> I don't believe this is possible.. but would be very nice for creating a
> collect! method for a user-defined object. Thanks


a, b = "foo", "bar"
proc = Proc.new {|a, b|}
proc.call(1, 2)

# a, b => 1, 2