Walter, I need a __trait please.

[Nicholas Wilson via Digitalmars-d]

On Tuesday, 15 March 2016 at 00:29:17 UTC, Stefan Koch wrote:
> Hi,
>
> I found myself in need of __trait that might be useful to 
> include.
>
> something that would give me the parameters of a the body of 
> the lambda as string and the parmeters of a lambda as 
> AliasSequence.
> e.g
> foreach (p;__traits(lambda, (x,y) => x < y)) {
>  writeln(p);
> }
>
> would output
> x
> y
> x < y
>
> I am sure this is doable unfortunately I lack the insight into 
> DMD to implement this in a reasonable amount of time, and code 
> quality.
>
> Thanks in advance!
>
> Stefan

Also can we have an isEnum and isStruct. yes 
__traits(compiles,Fields!(__traits(getMember,moduleName, 
member))) and the equivalent for enumMembers works but is very 
ugly.