Tuples

[deadalnix]

On Monday, 27 May 2013 at 02:31:50 UTC, Jonathan M Davis wrote:
> On Monday, May 27, 2013 04:24:51 Diggory wrote:
>> It also shouldn't break any code since the only addition to
>> TypeTuple is a check to make sure that the undocumented 
>> behaviour
>> of using it with non-types is disallowed, and in the case that
>> this undocumented feature is used the code can simply switch to
>> StaticTuple and be done.
>
> Well, changing TypeTuple to only accept types _will_ break 
> code. It gets used
> quite heavily with foreach to get a static foreach, and that 
> can involve using
> expressions instead of types. Anyone using TypeTuple heavily 
> knows what it can
> do and will probably have used it for expressions at some 
> point. It wouldn't
> surprise me in the least if it's already done in Phobos, and 
> there's no way to
> know how much it is or isn't done elsewhere.
>

Granted that nobody understand them, it is fair to say it should 
be changed.