Why can't typeof() be used in member method?

[Adam D. Ruppe via Digitalmars-d-learn]

On Wednesday, 26 July 2017 at 16:50:35 UTC, Andre Pany wrote:
> mixin(`static if (!__traits(compiles, 
> typeof(`~T.stringof~`.`~p.name~`))) {
> ...
> }

FYI, you shouldn't use .stringof here. Just use `T` instead of 
`T.stringof`.

> Creating new class for checking whether the class has a 
> specific member is not possible in my scenario, as a DLL call 
> is involved and I need the result (member available) as 
> condition for static if.

This doesn't *actually* create a new class, it just compiles as 
if you would to make sure it has a valid `this` for it in the 
type system.

You could also use `typeof(TBounds.init.Left)`, which is actually 
even better than `new` since it doesn't require the constructor 
arguments.

But in either case, that code isn't actually run, it just looks 
for the non-static member function.

> Due you think typeof should work within member methods and I 
> should file an issue?

I'm not sure... I could go either way on it since there is a 
reasonable answer here (int), but since it is non-static, trying 
to use it in an actual expression IS an error so it makes sense 
for typeof(error) to also be an error...