Deprecated Nullable.get warning with Appenders

[drug]

On 1/31/20 10:32 AM, FeepingCreature wrote:
> On Friday, 31 January 2020 at 07:16:49 UTC, FeepingCreature wrote:
>> Nullable!T has an assign overload for T. Nullable!T implicitly 
>> converts to T via `.get`. As such, Nullable!T can be assigned 
>> Nullable!T - in a way that is guaranteed to crash if Nullable is null, 
>> but it *can* be done! (And the compiler will do it silently by 
>> default.) Well, now `.get` is deprecated, so this hypothetical loop is 
>> also deprecated... but it still *compiles*.
>>
> 
> Correction to avoid it seeming worse than it is: the compiler will not 
> do this by default. The problem with hasElaborateAssign is that it calls 
> opAssign manually. (There *were* bugs where the compiler did this by 
> default though, when it thought that was the way to convert between 
> constnesses for instance, but they're fixed.)

See also https://forum.dlang.org/thread/znrvjuemkrstlascgmta@forum.dlang.org