• bearophile (26/26) Apr 19 2010 Is this how @disable is supposed to work (D2 code)?

bearophile <bearophileHUGS lycos.com> writes:

Is this how  disable is supposed to work (D2 code)?
Is overriding a disabled function meaningful?

import std.c.stdio: puts;
class A {
    void foo() { puts("A.foo()"); }
}
class B : A {
    // disable override void foo(); // Linker error  
     disable override void foo() { puts("B.foo()"); }; // OK
}
class C : B {
    override void foo() { puts("C.foo()"); };
}
void main() {
    A b = new B;
    b.foo(); // OK, Output: B.foo()
    B b2 = cast(B)b;
     
    // Compile-time Output: Error: function test.B.foo is not callable because
it is annotated with  disable 
    b2.foo(); 
    
    C c = new C;
    c.foo(); // OK, Output: C.foo()
}


Bye and thank you,
bearophile