On Wednesday, 20 March 2013 at 19:01:27 UTC, Jonathan M Davis
wrote:
Why are you casting? The cast shouldn't be necessary, because
you're doing the
initialization inside a static constructor.
Without it I get:
Error: mutable method cmap.S.__postblit is not callable using a
const object
Error: cannot modify struct this Slot with immutable members
If you had problems, I'd expect it
to be that AAs don't work properly when const (I know that
there are issues
when they're immutable) or that you can't insert elements into
a const or
immutable AA (which you'll never be able to do). But what
you're doing here
should work just fine without the cast. Assuming that AAs
worked with const or
immutable correctly, then it would be normal to do something
like
immutable int[string] aa;
static this()
{
int[string] temp;
temp["foo"] = 7;
temp["blah"] = 12;
aa = assumeUnique(temp);
}
For now it seems the cast is necessary - so as long as it is safe.
I am not using 'immutable S[string]aa', but it would be
interesting to see how that could be initialized. So, how to
initialize aa. Does assumeUnique work for associative arrays?
------------------
import std.exception;
struct S {
this(this) { x = x.dup; }
char[] x;
}
immutable S[string] aa;
static this() {
// now what
}
Thakns
Dan
