On Thursday, 1 December 2016 at 12:17:46 UTC, Barry wrote:
http://joeduffyblog.com/2016/11/30/15-years-of-concurrency/
delegate void PureFunc<T>() immutable;
This meant that a lambda conforming to the PureFunc interface could only close over immutable state.
Notice how powerful this has suddenly become! This PureFunc is precisely what we would want for a parallel task. As we will see shortly, these simple concepts alone are enough to enable many of those PFX abstractions to become safe.
That is an interesting idea. Afaik, D does not allow to limit closure like this?