struct throws errors if it has a DTor

[Namespace]

On Saturday, 8 December 2012 at 13:09:39 UTC, Maxim Fomin wrote:
> On Saturday, 8 December 2012 at 11:10:27 UTC, Namespace wrote:
>> Why this code compiles without Dtor, but not when I have one?
>>
>> http://dpaste.dzfl.pl/2792b974
>
> Reading compiler errors is a good idea:
>
> (18-25):Error: function c739.Color.opAssign (Color p) is not 
> callable using argument types (Color) const
>
> Because you use didn't supply opAssign, default one is 
> generated. It calls postblit and destructor for temporary. Once 
> you define any of them, default opAssign cannot be const and 
> because you assign static const structs in static constructor 
> at lines 18-25, compiler issues errors.
>
> Solution is to move initialization of static fields to compile 
> time and use static struct initialization. In any case you know 
> values of Black, Green, etc. so why would one initialize them 
> at runtime? You can also turn them into enums.
>
> http://dpaste.dzfl.pl/09572204

I have read the error messages, but they have made no sense to 
me. It just seemed to be one of many bugs of D. But now it's 
clear. Thank you. ;)