On 19/01/2011 12:27, Mariusz Gliwiński wrote:
How to make a HANDLE in D without casting and stuff:
<code>
interface iface{
void doSomething(HANDLE h);
}
class A : iface {
override void doSomething(HANDLE h) {
assert(validPointer(h));
h.foo = bar;
}
}
class B : iface {
someVar table[];
override void doSomething(HANDLE h) {
assert(table.isInBounds(h));
table[h].foo = bar;
}
</code>
Module/class -scoped alias would be great like:
<code>
#a.d
private alias uintptr_t HANDLE;
#b.d
private alias someVar HANDLE;
</code>
but alias is resolved too early for that. How to make it properly then?
Union or something else?
Thanks,
Mariusz Gliwiński
Traditionally:
struct dummy;
alias dummy* HANDLE;
void doSomething(HANDLE h) {
}
Just don't provide a body for dummy to keep it abstract.
--
My enormous talent is exceeded only by my outrageous laziness.
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