need help with CTFE

[Dmitri Makarov via Digitalmars-d-learn]

On Thursday, 26 March 2015 at 17:30:40 UTC, anonymous wrote:
> value parameter. You cannot do that, because `name` is a 
> "dynamic value" but you can only pass a "static value" there. 
> (There may be better terms than dynamic/static value.)

Thank you, anonymous. It makes sense. I guess rather than 
"static/dynamic", I would think of "known/unknown at 
compile-time". In this case, 'if (name == "hammer")' seems no 
more static or less dynamic than 'hasMember!(Tool, name)'. 
Nevertheless, I appreciate your help and will use the solution 
that you offered.