snapshots: Handle as separate components

pkg/slicesx/slicesx.go

@@ -26,6 +26,16 @@ func Filter[T any](values []T, filter func(T) bool) []T {
 	return results
 }
 
+// FilterClone is like [Filter], but creates a new slice
+func FilterClone[T any](values []T, filter func(T) bool) (results []T) {
+	for _, value := range values {
+		if filter(value) {
+			results = append(results, value)
+		}
+	}
+	return
+}
+
 // NonSequential sorts values, and then removes elements for which test() returns true.
 // NonSequential does not re-allocate, but uses the existing slice.
 func NonSequential[T constraints.Ordered](values []T, test func(prev, current T) bool) []T {