[dmd-internals] Getting the calling scope for a function (e.g. to get __FUNC__ from the caller)

[Jacob Carlborg via dmd-internals]

> On 5 apr 2016, at 16:54, Simen Kjaeraas via dmd-internals <dmd-internals at puremagic.com> wrote:
> 
> To get to know DMD a bit more, I decided to implement __GENSYM__, as touched upon in Nordlöw's post on Units of Measurements[1].
> 
> My implementation uses the mangled name of the instantiation scope and an associated counter to create a unique string, and works great for template default parameters (which is where I imagine it would see use).
> 
> For completeness though, I wanted to make it work as a function default parameter as well. Looking at how __FILE__ and __LINE__ are implemented, they use only Loc, not Scope. Is it at all possible to get the calling scope for a function?

Not sure where you’re looking but I would guess __FILE_ and __LINE__ are handled here [1], where the scope is available.

[1 ]https://github.com/D-Programming-Language/dmd/blob/master/src/expression.d#L1446

-- 
/Jacob Carlborg