Trait OptionExt
fool
pub trait OptionExt<T>: Sized { fn zip_ext<U>(self, other: Option<U>) -> Option<(T, U)>; fn zip<U>(self, other: Option<U>) -> Option<(T, U)> { ... } }
fn zip_ext<U>(self, other: Option<U>) -> Option<(T, U)>
fn zip<U>(self, other: Option<U>) -> Option<(T, U)>
impl<T> OptionExt<T> for Option<T>