On 24/07/2018 7:11 AM, Jacob Carlborg wrote:
On 2018-07-23 18:26, Seb wrote:
tl;dr: the currently proposed syntax options are:
---
struct S
{
int a = 2, b = 4, c = 6;
}
void foo()
{
bar(S({c: 10})); // Option 1
bar(S(c: 10)); // Option 2
bar(S{c: 10}); // Option 3
}
---
So the struct-initialization DIP has been stalled for too long and I
think it's time we finally get this story done.
I personally prefer option 2, but this might be in conflict to named
arguments which we hopefully see in the near future too. Hence, I'm
leaning forward to proposing Option 1 as the recommended Option for
the DIP (that's also what the PoC DMD PR implements). What's your take
on this?
DIP: https://github.com/dlang/DIPs/pull/71
Rendered view:
https://github.com/wilzbach/DIPs/blob/struct-initialization/DIPs/DIP1xxx-sw.md
Talking about future potential features, Option 1 could be in conflict
with a tuple with named elements. Option 2 could be in conflict with
named parameters, true, but named parameters could also have a different
syntax, i.e. foo(a = 3, b = 4), this is what Scala is using.
We ugh can't use that syntax because of ambiguity to AssignExpression.