From: David Flanagan <david@...>
Date: 2007-04-24T14:19:05+09:00
Subject: Re: parallel assignment in Ruby 1.9 evaluates to true instead of array of rvalues

nobu@ruby-lang.org wrote:
> Hi,
> 
> At Tue, 24 Apr 2007 08:27:41 +0900,
> David Flanagan wrote in [ruby-core:11011]:
>> Bug or feature?
> 
>> ruby1.9 -v -e 'z = (x,y=1,2); p z'
>> ruby 1.9.0 (2007-02-06 patchlevel 0) [i686-linux]
>> true
> 
> IIRC, Ko1 said he didn't want to implement it, due to the
> performance cost.

That seems like a reasonable tradeoff to me.  I can't see the return 
value of a parallel assignment expression actually being used often.

>> Also, can anyone point me to an explaination of why this doesn't work:
>>
>> ruby -v -e 'p(x,y=1,2)'
> 
> You are just confused.  It is equivalent to 'p(x, y=1, 2)'.
> 

I was so deep into parallel assignment, I guess, that I couldn't see 
this.  How embarassing!  Thank you.

	David