The demise of T[new]

[Andrei Alexandrescu]

Jason House wrote:
> Andrei Alexandrescu Wrote:
> 
>> grauzone wrote:
>>> Walter Bright wrote:
>>>> We both feel that this would simplify D, make it more flexible,
>>>> and remove some awkward corner cases like the inability to say
>>>> a.length++.
>>> How would this remove this corner case?
>> Can't increment length if it's read-only.
>> 
>> Andrei
> 
> removing syntactic sugar doesn't really remove corner cases. T[new]
> is being replaced with an array builder. What usage semantics are
> given up with an array builder? How will implicit conversions be
> handled? (alias this, etc...). How will the Phobos array buiilder
> support user specified lengths (for efficiency)?

I think ArrayBuilder could a logic similar to Appender for "~=" and 
otherwise offer regular array primitives. I don't think implicit 
conversion to T[] is an essential feature, but it can be done.

Andrei