Copy Constructor DIP

[ag0aep6g]

On 07/16/2018 09:06 PM, Andrei Alexandrescu wrote:
> On 7/14/18 11:26 AM, Jacob Carlborg wrote:
[...]
>> That's easily fixed by implementing a compiler recognized UDA. That 
>> would mean that it would only be a copy constructor if "implicit" is 
>> defined in core.attribute. This would also avoid any special syntax in 
>> the parser. The already existing @selector is implemented like this.
> 
> Affirmative. We're going that route, similar to "@safe" and "@nogc".

@safe and @nogc are not compiler recognized UDAs. If you implement 
@implicit like them, then you're not doing what Jacob suggests.