Trait tuples::tuple_map::Tuple4Map0Option

pub trait Tuple4Map0Option<T0, T1, T2, T3> {
    pub fn map0<U>(self, f: impl FnOnce(T0) -> U) -> Option<(U, T1, T2, T3)>;
}

Mapping .0 for Tuple4

Required methods

pub fn map0<U>(self, f: impl FnOnce(T0) -> U) -> Option<(U, T1, T2, T3)>

Mapping .0 for Tuple4

Loading content...

Implementations on Foreign Types

impl<T0, T1, T2, T3> Tuple4Map0Option<T0, T1, T2, T3> for Option<(T0, T1, T2, T3)>

pub fn map0<U>(self, f: impl FnOnce(T0) -> U) -> Option<(U, T1, T2, T3)>

Loading content...

Implementors

Loading content...