From: "Bartosz Dziewoński" <matma.rex@...>
Date: 2011-10-05T05:46:26+09:00
Subject: Re: Local vs method vs instance (was: Operator Overloading)

2011/10/4 Jesús Gabriel y Galán <jgabrielygalan@gmail.com>:
> 2011/10/4 Bartosz Dziewoński <matma.rex@gmail.com>:
>> 4. Block arguments and block-local variables
>
> Block arguments and block local variables are local to the block
> scope, not the method.

If I understand the discussion correctly, the fact to what scope
exactly they are local doesn't matter; once it's defined, bareword
reference will resolve to the variable, not the method anymore. Of
course, after the block it will resolve to the method again.

irb(main):002:0> def x; 'foo'; end
=> nil
irb(main):003:0> x
=> "foo"
irb(main):004:0> 3.times{|x| p x}
0
1
2
=> 3


>> 5. Stabby Lambda variables
>
> What do you mean by this?

Regular lambda: a = lambda{|x,y| x+y} - it cant have, for example,
default value for arguments.

"Stabby" lambda, or "arrow" lambda: a = ->(x=5, y=6){x+y} = as you can
see, it's arguments work just like function's ones.


>> 6. Rescue exception naming (rescue StandardError => err)
>
> Kind of assignment :-)

Well, certainly not a regular one ;)


-- Matma Rex