You can already do that:
mixin template AdviceX() {
int fun(int x) {
...
return fun_without_advice();
}
}
class Foo {
mixin AdviceX;
int fun_without_advice(int x) {
}
}
You can already do that:
mixin template AdviceX() {
int fun(int x) {
...
return fun_without_advice();
}
}
class Foo {
mixin AdviceX;
int fun_without_advice(int x) {
}
}