Dnia 13-12-2009 o 00:44:56 Tomek Sowiński <[email protected]> napisał(a):
Dnia 12-12-2009 o 13:09:49 Tomek Sowiński <[email protected]> napisał(a):
But that's not all, when I mark my class immutable...
immutable class M {
this(byte a) { _a = a; }
byte _a;
byte a() { return _a; };
}
void main() {
auto m = new class(4) M {
this(byte a) { super(a); }
override byte a() { return 3+_a; }
};
}
... the compiler says: cannot implicitly convert expression (this) of
type immutable(M) to test.M.
Same story for const classes. Again, compiler bug?
It's not only about anonymous classes. Take a look at this:
immutable class M {
this(int a) { _a = a; }
int _a;
int a() { return _a; }
}
immutable class PodM : M {
this(int a) { super(a); }
override int a() { return 3+_a; }
}
void main() {
auto m = new PodM(3);
}
The above still throws the same error:
Error: cannot implicitly convert expression (this) of type immutable(M)
to test.M
Error: cannot implicitly convert expression (this) of type
immutable(PodM) to test.PodM
Compiler bug I guess...
Should've DAFS first...
http://d.puremagic.com/issues/show_bug.cgi?id=2610
What's disturbing is that this bug is nearly a year old... Could this be
that immutable classes lay there virtually unusable for so long?
Tomek
