I'm trying to write a template function like the below... is it possible without using string mixins?


void fun( alias(?) field, alias p1, alias p2)()
{
    if(p1.field)
       use(p2.field);
}

called with something like


static foreach( list of fields){
  fun!(field, p1, p2)();
}

I have no idea how to specify the list of fields and I'm not sure if alias is the right "type" for the field template parameter.

On Wednesday, 8 May 2019 at 18:01:53 UTC, Ben Jones wrote:
> I'm trying to write a template function like the below... is it possible without using string mixins?
>
>
> void fun( alias(?) field, alias p1, alias p2)()
> {
>     if(p1.field)
>        use(p2.field);
> }
>
> called with something like
>
>
> static foreach( list of fields){
>   fun!(field, p1, p2)();
> }
>
> I have no idea how to specify the list of fields and I'm not sure if alias is the right "type" for the field template parameter.

void fun(string fieldName, alias p1, alias p2)()
{
    if (__traits(getMember, p1, fieldName))
        use(__traits(getMember, p2, fieldName));
}