This is probably trivial or impossible Code Introspection...

[WhatMeWorry via Digitalmars-d-learn]

On Saturday, 19 September 2015 at 19:54:45 UTC, Adam D. Ruppe 
wrote:
> On Saturday, 19 September 2015 at 19:52:56 UTC, WhatMeWorry 
> wrote:
>> So I've got type and value of each member, but I want their 
>> actual names?
>
> http://dlang.org/phobos/std_traits.html#FieldNameTuple
>
> You can also do something like `foo.tupleof[idx]["foo.".length 
> .. $]` for an individual thing but the phobos one should be the 
> nicest.


Thanks.  But now I have an even more fundamental problem.  I keep 
getting a FieldNameTuple is not defined.  But I've clearly got 
the import statement.  I even copied the example from Phobos 
verbatim:

import std.traits;

struct S { int x; float y; }
static assert(FieldNameTuple!S == TypeTuple!("x", "y"));

But I still get the error.

Error: template instance FieldNameTuple!S template 
'FieldNameTuple' is not defined

I've been working for hours on this stupid thing.