On Wed, 29 Jan 2014 08:30:53 -0500, Martin Cejp <[email protected]> wrote:
This is a feature I've always missed in C++. Consider the code
below:
import std.stdio;
interface Logger {
void print(string msg);
}
class ConsoleLogger : Logger {
static override void print(string msg) {
writeln(msg);
}
}
void main() {
Logger logger = new ConsoleLogger;
ConsoleLogger.print("Hello, World!");
}
Such definition of ConsoleLogger fails to compile. I don't see
any drawbacks to allowing this though, except the compiler would
probably have to generate 2 methods internally.
The way it is now, you have to either define each method twice or
always create an instance.
Or am I missing an obvious solution?
Interface Logger {
final void print(string msg) { printImpl(msg); }
void printImpl(string msg);
}
class ConsoleLogger : Logger {
static void print(string msg) {
writeln(msg);
}
override void printImpl(string msg) {
print(msg);
}
}
The issue you have is with the naming, you can't overload a virtual
function with a static one. A static function call is a different call
than a virtual one. You can't mix the two.
-Steve
