Bug? tupleof and const string = ""

[Andre]

Am 13.02.2014 17:42, schrieb Tobias Pankrath:
> On Thursday, 13 February 2014 at 16:37:20 UTC, Andre wrote:
>> Hi,
>>
>> could you have a look whether this is a bug with tupleof?
>> In case you have a const string with a default value,
>> the attribute is not in the tupleof list.
>>
>> struct A {
>>     const string a = "abc";
>>     string d;
>> }
>>
>> void main(){
>>     assert(A().tupleof.length == 2); // fails -> length = 1
>> }
>>
>> Kind regards
>> André
>
> I'm not sure. May guess is the compiler figures that you'll never be
> able to change a and pulls it out of the struct. What I don't know is,
> if it should do this without using immutable or enum.
>
> Besides: I don't think that const elements make any sense. What do you
> want to do?

It is strange, const string attributes without a value are working fine.

The use case is for communication with a database procedure. The 
database procedure want the request in JSON format. I created the
structure similiar to the JSON request and serialize it to JSON.
Some of the values should be constant others should be variable.

Kind regards
André