Trait SliceExt 

pub trait SliceExt: Sealed {
    type Elem;

    // Required method
    fn generate_boxed<F: FnMut(usize) -> Self::Elem>(
        n: usize,
        f: F,
    ) -> Box<Self>;
}

Extension trait for dynamically sized slices.

Allows you to initialize a boxed slice like this:

use init_array::SliceExt;

let arr: Box<[usize]> = <[usize]>::generate_boxed(5, |i| i * i);
assert_eq!(&*arr, &[0, 1, 4, 9, 16]);

Required Associated Types

type Elem

Required Methods

fn generate_boxed<F: FnMut(usize) -> Self::Elem>(n: usize, f: F) -> Box<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<T> SliceExt for [T]

type Elem = T

fn generate_boxed<F: FnMut(usize) -> Self::Elem>(n: usize, f: F) -> Box<Self>

Implementors