Re: Is it possible to return the subclass from a method of the parent class in dlang?

[Jacob Carlborg via Digitalmars-d-learn]

On 2018-03-02 21:23, Christian Köstlin wrote:

To give an example:

class Thread {
   ...
   Thread start() {...}
}

class Timer : Thread {
   ...
}


void main() {
   // Timer timer = new Timer().start;  // this does not work
   auto timer = new Timer().start; // because timer is of type Thread
}

You can also try a template this parameter [1] in the base class:

class Thread
{
    T start(this T) () { ... }
}

But if this "Thread" is core.thread.Thread that won't work.

[1] https://dlang.org/spec/template.html#template_this_parameter

--
/Jacob Carlborg