On 07/12/13 18:29, Walter Bright wrote:
D doesn't allow overriding non-virtual functions (unlike C++).
I'm speaking of the case where what you mean to write is,
final class Foo
{
/* ... lots of methods which are all final, because
* the class as a whole is final
*/
}
but what you actually write is,
class Foo // Whoops! Forgot the final
{
/* ... lots of methods which, because of the missing
* "final", are instead virtual and can be overridden
*/
}
In this case you can't fix the original error -- by adding "final" before the
class declaration -- without risking breaking downstream code, because someone
may have created a subclass of Foo that overrides one or more of its methods.
