Can we drop static struct initializers?
Bill Baxter
wbaxter at gmail.com
Fri Nov 20 08:52:33 PST 2009
On Thu, Nov 19, 2009 at 9:48 PM, Don <nospam at nospam.com> wrote:
> Now that we have struct literals, the old C-style struct initializers don't
> seem to be necessary.
> The variations with named initializers are not really implemented -- the
> example in the spec doesn't work, and most uses of them cause compiler
> segfaults or wrong code generation. EG...
>
> struct Move{
> int D;
> }
> enum Move genMove = { D:4 };
> immutable Move b = genMove;
>
> It's not difficult to fix these compiler problems, but I'm just not sure if
> it's worth implementing. Maybe they should just be dropped? (The { field:
> value } style anyway).
I agree there are too many ways to make structs, but...
1) Struct literals don't work if you have an opCall for your struct.
(Maybe that's not such a big deal now that structs have
constructors? I haven't had a chance to look into struct constructors
yet...)
2) The field:value style struct initializer is probably the closest D
will ever get to named arguments. I think perhaps it should require
the struct name, and be treated as a struct literal rather than static
initializer:
auto anS = S{D:4}; <=> auto anS = S(4)
--bb
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