how to fix such a hijacking problem in D ?

[Jarrett Billingsley]

"z_axis" <z_axis at 163.com> wrote in message news:op.t3fe7a2l1uofcn at sw2wolf...
> import std.stdio;
>
> class A
> {
>     void foo(long) {}
>     void def() { writefln("A.def()"); foo(1L); }  // expects to call 
> A.foo(long)
> }

Another way to solve this (Bill's will probably work too) is to make the 
call to foo non-virtual.

void def()
{
    writefln("A.def()");
    typeof(this).foo(1L); // performs non-virtual call
}

This way foo can still be virtual and overridden, but the call will always 
call A's implementation of foo.