On Monday, 4 January 2021 at 14:40:31 UTC, ag0aep6g wrote:
You didn't replace "Bar!int" with "Foo!int". You replaced "Bar!T" with "Foo!T". That's something else entirely.
No, it isn't. When it is instantiated you get "Bar!int" and then the unification would substitute that with "Foo!int".
This is basic type system design. Nothing advanced. Just plain regular unification.
This should even be worth discussing... the fact that it is being debated isn't promising for D's future...
