Struct ArrayBuilder

struct ArrayBuilder<T, const N: usize> {
    arr: [MaybeUninit<T>; N],
    len: usize,
}

An array of at most N elements.

Fields

arr: [MaybeUninit<T>; N]

The (possibly uninitialized) elements of the ArrayBuilder.

Safety

The elements of arr[..len] are valid Ts.

len: usize

The number of leading elements of arr that are valid Ts, len <= N.

Implementations

impl<T, const N: usize> ArrayBuilder<T, N>

pub fn new() -> Self

Initializes a new, empty ArrayBuilder.

pub fn push(&mut self, value: T)

Pushes value onto the end of the array.

Panics

This panics if self.len >= N.

pub fn take(&mut self) -> Option<[T; N]>

Consumes the elements in the ArrayBuilder and returns them as an array [T; N].

If self.len() < N, this returns None.

Trait Implementations

impl<T, const N: usize> AsMut<[T]> for ArrayBuilder<T, N>

fn as_mut(&mut self) -> &mut [T]

Converts this type into a mutable reference of the (usually inferred) input type.

impl<T, const N: usize> Drop for ArrayBuilder<T, N>

fn drop(&mut self)

Executes the destructor for this type.