Error: not a property - ?

[Era Scarecrow]

On Sunday, 10 February 2013 at 03:24:37 UTC, Jonathan M Davis 
wrote:
> On Sunday, February 10, 2013 04:16:26 Era Scarecrow wrote:
>> This is an unexpected error; Seems it's the result of not 
>> down-casting a variable-type. Is this a bug? Or just need a 
>> better error message?
>> 
>> Version: DMD32 D Compiler v2.061
>> 
>> 
>>    struct S {
>>      void test(uint v) @property {}
>>      void test2(ulong v) @property {}
>>    }
>> 
>>    ulong x;
>>    S s;
>> 
>>    s.test2 = x;
>>    s.test = x;  //s.test is not a property
>
> It's not a bug. The assignment is illegal, because a you can't 
> assign a ulong to a uint without casting, but the error message 
> obviously isn't very good. It probably gives that error 
> whenever you try and use the property syntax, and there's no 
> variable or function with that name that compiles with the 
> given argument. It really should be indicating that the 
> argument itself is invalid, but however the combination of 
> lowering and error messages works, you end up with a less than 
> helpful error message.

  I figured as much. Very difficult to figure out the culprit when 
it's from bitfields mixed with perfectly normal code for 
assignment.

  Where should I add to the bug tracker so the error message can 
be improved?