grauzone wrote:
Sorry to dig up this old post, but I still don't understand why
'package' functions cannot be virtual? Is there a good reason for
this? I can't see why we can't use polymorphism on 'package' functions!
Is there way to make it virtual without making it public? (e.g. a
'virtual' keyword?)
"package" needs to fixes:
- package methods must be allowed to be virtual
- package methods must be allowed to be accessed from sub packages
(module a.b.x should be able to access package identifiers declared in
module a.y)
I don't understand why these fixes applied, especially because they are
completely backward compatible.
"package methods must be allowed to be virtual" isn't
backwards-compatible. This code will work differently if package methods
were made virtual:
class A
{
package void foo() { printf("A"); }
}
class B
{
package void foo() { printf("B"); }
}
void main()
{
A a = new B();
a.foo();
}
