Classes and @disable this()

[via Digitalmars-d-learn]

On Sunday, 8 February 2015 at 19:57:28 UTC, Jonathan M Davis 
wrote:
> On Sunday, February 08, 2015 17:51:09 bearophile via 
> Digitalmars-d-learn wrote:
>> fra:
>>
>> > However making it a compiler error would be far, far better
>>
>> I think this can be filed in Bugzilla as diagnostic 
>> enhancement:
>>
>>
>> class Foo {
>>      @disable this();
>>      this(int i) {}
>> }
>> void main() {}
>
> The compiler should probably just give you an error telling you 
> that
> disabling the default constructor on classes is illegal. And 
> since no
> default constructor is automatically declared if you declare 
> another
> constructor, there isn't even any point in disabling the 
> default constructor
> (which is probably why no one has been complaining about this). 
> @disable
> this() only makes sense on structs.

Alternatively, it could be accepted (and a no-op) if another 
constructor is defined, but an error if not.