On Tuesday, 8 July 2014 at 11:42:54 UTC, NoUseForAName wrote:
On Tuesday, 8 July 2014 at 11:16:52 UTC, Marc Schütz wrote:
Your example above doesn't work, because it would be
interpreted as a redefinition of the struct. Instead, you can
use a public alias to a private type:
// my_module.d:
private struct MyStructImpl {
int x;
}
public alias MyStructPtr = MyStructImpl*;
void doSomething(MyStructPtr foo) {
...
}
// my_main_program.d:
MyStructPtr bar; // OK
MyStructImpl foo; // Error: my_module.MyStructImpl is private
Thanks, that is what I was looking for.
Addendum: You also need to protect the members of MyStructImpl,
like so:
private struct MyStructImpl {
private: // or `package:`
int x;
}
Otherwise, they would still be accessible via dereferencing.
(Don't worry, you _can_ access private members inside the module
the struct is declared in, as access protection in D only applies
across module boundaries.)
