Re: Is it a bug that a parent class that access its own private members from derived classes gets deprecation warning?

[kdevel via Digitalmars-d]

On Sunday, 8 April 2018 at 13:00:02 UTC, bauss wrote:
[...]

// a.d
module a;

class Foo
{
        private:
        bool _baz;
        
        public:
        void handleBar(T : Foo)(T[] foos)
        {
                foreach (child; foos)
                {
                        child._baz = true; // Not ok.

replace this line with

   import std.stdio;
   __PRETTY_FUNCTION__.writeln;
   foos.writeln;

This writelns:

   void a.Foo.handleBar!(Bar).handleBar(Bar[] foos)
   [b.Bar, b.Bar]

So foos is actually an array of Bars. And there is no access from 
a Bar to the private elements of it's baseclass Foo.

What I am wondering about is why does the method template match 
in the first place?

                        (cast(Foo)child)._baz = true; // Ok.

You also may use the ternary conditional operator for that (SCNR).