how to determine if type is final/abstract

[JS]

On Friday, 12 July 2013 at 11:28:19 UTC, Jacob Carlborg wrote:
> On 2013-07-12 09:25, JS wrote:
>> BTW, the error is
>>
>> testmodule.d(14): Error: undefined identifier main
>
> Where does "main" come from?
>
>> which suggests that the template can't find the module. I can 
>> import the
>> module and it will work fine but this seems a bit circular. I 
>> will try
>> and mixin the module to solve my original problem but still 
>> need to
>> figure out how to handle overloads.
>
> Try this:
>
> 1. Iterate over all members
> 2. Run __traits(getOverloads) for each member
> 3. Iterate all overloads
> 3. Run __traits(isFinalFunction) for each overload
>
> http://dlang.org/traits.html#getOverloads
> http://dlang.org/traits.html#allMembers
> http://dlang.org/traits.html#derivedMembers

main is the main module. I've tried your method already but 
couldn't get it to work. I think it is ultimately flawed because 
one still needs to compare against the full definition.

I was able to get it to work in any case by modifying std.traits. 
It has a more advanced GetOverloads template that ignores static 
functions. I included it to ignore final functions also... this 
might be a bug in the code as I'm sure if it wants to ignore 
static it probably should ignore finals.

    template isMethod(alias f)
             {
                 static if (is(typeof(&f) F == F*) && is(F == 
function))
				{
                     enum isMethod = !__traits(isStaticFunction, 
f) && !__traits(isFinalFunction, f);
				}
                 else
                     enum isMethod = false;
             }