On Wednesday, 9 January 2013 at 15:10:47 UTC, bearophile wrote:
eles:
void make_a_equal_to_b(??a,!!b); //I give you "b", give me "a"
A saner syntax is just to use the same in/out/inout keywords at
the call point, This is essentially what C# does (with one
exception for COM):
make_a_equal_to_b(ref a, in b)
This feature was discussed several times in past for D. The
advantage is more readability for the code and less surprises.
The disadvantages are more typing, some code breakage of D2
code (because even if at the beginning it's a warning, and
later a deprecation, you will eventually need to enforce it
with an error).
Assuming that annotation-breaking is on a separate level of
errorness than errors and regular warnings will avoid that
problem. It will remain at the level "annotation", no need to
migrate to "warning" or "error". Code will not break as long as
typying "inout" &co. will be optional. If the programmer feels it
is better, he puts it there.
