On Tue, Aug 20, 2013 at 01:09:16AM +0200, Marek Janukowicz wrote:
> Jacob Carlborg wrote:
[...]
> > In "settings" you should be able to:
> >
> > 1. Iterate over all fields of the type Setting using
> > __tratis(derivedMembers)
>
> How do I do that? My understanding of types in case of templates is
> really poor... If I do something like:
>
> foreach( s; __traits(derivedMembers, typeof(this))) {
>
> how do I go from "s" into type of this member (especially that a type
> is an instantiated struct template?).
To get the type:
alias type = typeof(__traits(getMember, this, s));
To get the value:
auto value = __traits(getMember, this, s);
Or you can get both:
auto value = __traits(getMember, this, s);
alias type = typeof(value);
> And more generally - how do I check the type of a variable?
int x;
assert(is(typeof(x) == int));
T
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