On Wednesday, 9 May 2018 at 14:36:38 UTC, Per Nordlöw wrote:
On Wednesday, 9 May 2018 at 14:34:02 UTC, Per Nordlöw wrote:
On Wednesday, 9 May 2018 at 14:20:41 UTC, Per Nordlöw wrote:
If so, we can temporarily modify the trait to exclude the
last `void*` member of the `S.tuple`. Given that it's always
added as the last member.
Also note that
pragma(msg, __traits(isDisabled, S.this(this)));
fails to compile as
Error: identifier expected following `.`, not `this`
Ahh, but both
pragma(msg, __traits(isDisabled, S.__postblit));
pragma(msg, __traits(isDisabled, S.__xpostblit));
prints true for a struct with `@disable this(this);`
Which one should I pick to check if last element of `S.tupleof`
should be discarded?
Managed to put together the hack
private template mustAddGCRangeOfStructOrUnion(T)
if (is(T == struct) ||
is(T == union))
{
import std.traits : hasUDA;
import std.meta : anySatisfy;
static if (__traits(hasMember, T, "__postblit"))
{
static if (__traits(isDisabled, T.__postblit))
{
enum mustAddGCRangeOfStructOrUnion =
anySatisfy!(mustAddGCRangeOfMember, T.tupleof[0 .. $ - 1]);
}
else
{
enum mustAddGCRangeOfStructOrUnion =
anySatisfy!(mustAddGCRangeOfMember, T.tupleof);
}
}
else
{
enum mustAddGCRangeOfStructOrUnion =
anySatisfy!(mustAddGCRangeOfMember, T.tupleof);
}
}
defined here
https://github.com/nordlow/phobos-next/blob/master/src/gc_traits.d#L81
Destroy.
