Trait TryIndex 

pub trait TryIndex<Idx> {
    type Error;
    type Output: ?Sized;

    // Required method
    fn try_index(&self, index: Idx) -> Result<&Self::Output, Self::Error>;
}

Required Associated Types

type Error

The type returned in the event of an error.

type Output: ?Sized

The type returned after performing the operation.

Required Methods

fn try_index(&self, index: Idx) -> Result<&Self::Output, Self::Error>

The fallible equivalent of Index::index.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<T: Index<Idx>, Idx> TryIndex<Idx> for T

type Error = Infallible

type Output = <T as Index<Idx>>::Output