// namespace.
func (s *SelectionPredicate) MatchesSingleNamespace() (string, bool) {
	if len(s.Continue) > 0 || s.Field == nil {
		return "", false
	}
	if namespace, ok := s.Field.RequiresExactMatch("metadata.namespace"); ok {
		return namespace, true
	}
	return "", false
}

// MatchesSingle will return (name, true) if and only if s.Field matches on the object's
// name.

		klog.Warningf("Couldn't parse list options for %v: %v", r.URL.Query(), err)
		return unsetValue
	}
	if opts.FieldSelector == nil {
		return unsetValue
	}
	if value, ok := opts.FieldSelector.RequiresExactMatch(field); ok {
		return value
	}
	return unsetValue
}

type indexValue struct {
	resource string
	value    string
}

// RegisterWatch implements WatchTracker interface.