From: Kornelius Kalnbach <murphy@...>
Date: 2010-02-17T14:53:50+09:00
Subject: [ruby-core:28196] Re: [Bug #2737] StringConstant +"string literal" (unspaced) raises exception

On 17.02.10 06:21, Joe Lapp wrote:
> Can you tell me what the ambiguity is?  The only valid interpretation
> of this that anybody in our local Ruby user group could see was
> string concatenation.
a +b could also be understood as a(+b) or a(b.+@()), where +@ is the
unary plus operator. of course, it's not defined for Strings, but the
parser can't determine that statically.

So, the warning is absolutely to the point.

[murphy]