Trait ExtVec

pub trait ExtVec<T>: Sealed {
    // Required methods
    fn vec_into_vec<U>(self) -> Vec<U> 
       where U: From<T>;
    fn vec_try_into_vec<E, U>(self) -> Result<Vec<U>, E> 
       where U: TryFrom<T, Error = E>;
}

Available on crate feature alloc only.

Extension trait providing additional methods for Vec.

This trait is sealed and cannot be implemented for any other type.

Required Methods

fn vec_into_vec<U>(self) -> Vec<U>

where U: From<T>,

Converts Vec<T> to Vec<U> when U implements From<T>.

Examples

assert_eq![vec![1_u16, 2, 3], vec![1_u8, 2, 3].vec_into_vec::<u16>()];
assert_eq![vec![1_u16, 2, 3], vec![1_u8, 2, 3].vec_into_vec::<u16>()];

fn vec_try_into_vec<E, U>(self) -> Result<Vec<U>, E>

where U: TryFrom<T, Error = E>,

Tries to convert Vec<T> to Vec<U> when U implements TryFrom<T>.

Examples

assert_eq![Ok(vec![1_i32, 2, 3]), vec![1_i64, 2, 3].vec_try_into_vec()];
assert_eq![Ok(vec![1_i32, 2, 3]), vec![1_i64, 2, 3].vec_try_into_vec::<_, i32>()];

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.

Implementors

impl<T> ExtVec<T> for Vec<T>