__traits getMember is context sensetive?

[JDemler via Digitalmars-d-learn]

On Sunday, 14 June 2015 at 10:29:09 UTC, anonymous wrote:
> On Sunday, 14 June 2015 at 10:10:51 UTC, ketmar wrote:
>> i.e. when it need a value in compile time. the interpreter is 
>> invoked, it evaluates (interprets) the given code (function or 
>> template instantiation), and then it returns result (or raises 
>> an error).
>
> One important thing I didn't see stated clearly by anyone in 
> here:
>
> CTFE may run at compile time but it follows the same rules as 
> run time evaluation (plus some restrictions).
>
> This means, you can't use dynamic values (e.g. function 
> parameters) in static contexts (e.g. __traits).
>
> Example:
> ----
> int f(int x)
> {
>     if (__ctfe)
>     {
>         enum e = x; /* nope, not even during CTFE */
>         alias t = some_template!x; /* nope */
>         pragma(msg, x); /* nope */
>     }
> 	return x;
> }
>
> enum result = f(1); /* CTFE-ing f */
> ----

So if i want to use parameters in a static context at compile 
time i have to pass them as template parameters?

That would explain my problems. Thanks