pub type CallDynFn = fn(&mut DynSegment, &[&(dyn Any + 'static)]) -> Result<Box<dyn Any>, Error>;Expand description
A monomorphized dispatcher for DynClosure::call_boxed: runs a closure’s body via
DynSegment::call_dyn::<R> for some concrete R the dispatcher itself already knows, boxing
the result so the caller (which only knows R dynamically, as a TypeId) doesn’t need to.