From: "David A. Black" <dblack@...>
Date: 2007-10-15T09:16:56+09:00
Subject: Re: Parameter in a block is not local?

Hi --

On Mon, 15 Oct 2007, SpringFlowers AutumnMoon wrote:

> Pat Maddox wrote:
>> This seems to me along the same lines as
>>
>> a = 1
>> if true
>>   a = 10
>> end
>> p a  # => 10
>>
>> Which certainly is not surprising or unwelcome.
>
> when compared to the following it is surprising:
>
> a = 1
> p a
>
> def foo(a)
>  p a
> end
>
> for i in 1..10
>  foo(i)
> end
>
> p a
>
> ------------------
>
> E:\>ruby test_iterator2.rb
> 1
> 1
> 2
> 3
> 4
> 5
> 6
> 7
> 8
> 9
> 10
> 1

There's no relation or connection between the two. The def keyword
always starts a new local scope; the if keyword doesn't. There's no
reason to expect them to behave the same way as each other, as they
serve entirely different purposes.


David

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