Function check_polygon 

pub fn check_polygon<T: Polygon>()

Call this in a unit test next to your type definition to surface adaptation errors close to the source rather than at the algorithm call site.

Mirrors boost::geometry::concepts::check<Polygon>() driven by boost/geometry/geometries/concepts/polygon_concept.hpp.

Examples

use geometry_trait::check_polygon;
fn _call<P: geometry_trait::Polygon>() { check_polygon::<P>(); }