From: Brad Phelan <phelan@...>
Date: 2006-12-21T01:03:09+09:00
Subject: Re: ruby gotchas

Mark Guzman wrote:
> I've written up some ruby gotchas that have come up while using ruby.
> I'm wondering if there are any other gotchas that I should be aware of.
> The list is available at:
> http://hasno.info/2006/12/14/ruby-gotchas-and-caveats
> 
> I was considering adding &&= to the list as it's functionality seemed a
> bit odd to me at first.
>   --mark
> 

The follow gets on my nerves a bit

class A
     def foo
         yield "foo"
     end
end

a = A.new
a.foo do |a|
     puts a
end

a.foo do |a|
     puts a
end

---

foo
test.rb:12: undefined method `foo' for "foo":String (NoMethodError)

---

Arguments to blocks are not scoped locally if the
name already exists in the outer scope. I think this
might be changing in Ruby 2.0???

--
Brad Phelan
http://xtargets.com