pub type SelectorFn<T, M, R> = fn(&T, &mut dyn Iterator<Item = (&R, Update<T, M>)>) -> Option<Update<T, M>>;Expand description
A uniform type for selector functions such as select_first.
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 8 bytes