[swift-evolution] Proposal: Introduce User-defined "Dynamic Member Lookup" Types

[Gwendal Roué]

> Le 1 déc. 2017 à 08:38, Gwendal Roué <gwendal.roue at gmail.com> a écrit :
> 
> In this context, I too am concerned with retroactive conformance. If it were forbidden, it would make it very clear where the dynamic scope starts and ends:


In Chris's playground, it is very clear that you have to import PythonGlue in order to activate the retroactive conformance on Int, Double, etc.

This is very fine to me. Sorry for expressing a useless concern.

Gwendal