From: Jean-Hugues ROBERT <jean_hugues_robert@...>
Date: 2004-05-01T05:37:55+09:00
Subject: Re: def [](v) xx; return yy; end # returned value is ignored !?

At 03:12 01/05/2004 +0900, you wrote:
>Mark Hubbart wrote:
>
>>
>>On Apr 30, 2004, at 9:12 AM, Jean-Hugues ROBERT wrote:
>>
>>>Am I missing something ?
>>
>>
>>Short answer: assignment always returns the value assigned, regardless of 
>>the return value of the function assigned to.
>>
>>If you REALLY need to get around this, try:
>>
>>   Test.new.send(:[]=, "hello")
>
>Actually there's an easier way, you can just use
>
>Test.new.[]= "hello"
>
>>
>>This eliminates the actual assignment, and treats it as a simple method 
>>call. The return value is respected.
>>
>>HTH,
>>--Mark

x.[]= y instead of x[] = y, Right.

All of this is going in the opposite direction from what I need to
implement a transparent Reference to a lvalue (kind of a "proxy" for
a variable instead of a "proxy" for an object).

Using r[] = zzz for References instead of plain x = zzz for regular variable is
not very transparent, using r.[]= is even less I guess. But it does
work and in the absence of anything better it is worth mentioning.

Thanks.

Jean-Hugues


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