Trait for fetching data and running systems. Automatically implemented for systems.
Runs the system now.
Panics if the system tries to fetch resources which are borrowed in an incompatible way already (tries to read from a resource which is already written to or tries to write to a resource which is read from).
World for a later call to
Performs clean up that requires resources from the
This commonly removes components from
world which depend on external
impl<'a, P, T> RunNow<'a> for ParSeq<P, T> where[src]