https://issues.dlang.org/show_bug.cgi?id=9149
--- Comment #14 from Steven Schveighoffer <schvei...@yahoo.com> --- (In reply to timon.gehr from comment #13) > Do you have an example where conversion to immutable for a strongly pure > constructor leads to problems? Basically, the example in comment 3, but with the delegate not being const. > We can't (for class references, you never know whether some subclass might > have a mutable delegate field). We need to do something else, but all > options I have proposed so far are quite ugly (or become ugly when > considering all the details required to make them work), so I'm open to > different proposals. Oh crap. Yeah that's a huge problem. The only thing I can think of is to disallow const(A) if A has a non-const delegate. And disallow overriding any const base functions. --
