From: Rick DeNatale <rick.denatale@...>
Date: 2008-05-09T21:55:55+09:00
Subject: Re: segmented method names

On Thu, May 8, 2008 at 11:31 PM, Nobuyoshi Nakada <nobu@ruby-lang.org> wrote:
> Hi,
>
> At Thu, 8 May 2008 21:49:06 +0900,
> Rick DeNatale wrote in [ruby-talk:301103]:
>> And in Ruby 1.9 you can also use the new hash literal syntax in the
>> call so it becomes:
>>
>>    contains_point x: value y: value
>
> You forgot a comma between first value and y:.

You are correct of course, thanks.

>> However, the semantics of Ruby keyword/hash option parameters are
>> slightly different from the Smalltalk inspired Objective-C method
>> selectors. In Smalltalk/ObjectiveC   x:y: is a different message and
>> will find a different method than y:x:, whereas Ruby keyword/hash
>> parameters are order independent and aren't involved in resolving a
>> message to a method.
>
> And the same selector can duplicate, x:x:x: is valid and
> differs from x:, but it's impossible with a hash.

Good point.

-- 
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/