Trait SplitFirst

pub trait SplitFirst: Sized {
    type Element;

    // Required method
    fn split_first(self) -> Option<(Self::Element, Self)>;
}

This trait allows removing the first element from the input.

Required Associated Types

type Element

Required Methods

fn split_first(self) -> Option<(Self::Element, Self)>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<'a> SplitFirst for &'a str

type Element = char

fn split_first(self) -> Option<(char, &'a str)>

impl<'a, T> SplitFirst for &'a [T]

type Element = &'a T

fn split_first(self) -> Option<(&'a T, &'a [T])>

Implementors

impl<I: Clone + SplitFirst, P: Position<I>> SplitFirst for Span<I, P>

type Element = <I as SplitFirst>::Element