🚀 go-pugleaf

Juan has a good question about building PushButtons from glyphs ...

    The telltale for the Button would be built inside this constructor,
    however, Button parent class requires the telltale before I can build it.

Here are two suggestions; I prefer the first.

1. PushButton needn't be derived from Button.  Just make it a MonoGlyph.

    PushButton::PushButton (...) : MonoGlyph(nil) {
        Telltale* t  = ...;
        Button* b = new Button(..., t, );
        body(b)
    }

2. Use a helper function to build the Telltale.

    static Telltale* make_telltale (...) {
        Telltale* t = ...;
        return t;
    }

    PushButton::PushButton (
        ...
    ) : Button(..., make_telltale(...), ...) {
        ...
    }

--
Paul Calder
Computer Systems Lab
Stanford University
calder@lurch.stanford.edu