Stewart Gordon wrote:
On 12/11/2010 09:53, Andrei Alexandrescu wrote:
<snip>
Well put me on board then. Walter, please don't forget to tweak the
associativity rules: var ~ " literal " ~ " literal " concatenates
literals first.
You mean make ~ right-associative? I think this'll break more code than
it fixes.
But implementing a compiler optimisation so that var ~ ctc ~ ctc is
processed as var ~ (ctc ~ ctc), _in those cases where they're
equivalent_, would be sensible.
Andrei's right. This is not about making it right-associative. It is about
defining in the language that:
((a ~ b) ~ c)
is guaranteed to produce the same result as:
(a ~ (b ~ c))
Unfortunately, the language cannot make such a guarantee in the face of operator
overloading. But it can do it for cases where operator overloading is not in play.
