Trait List

pub trait List: Deref<Target = [Self::Item]> {
    type Item: Pod;
    type Length: PodLength;

    // Required method
    fn capacity(&self) -> usize;

    // Provided methods
    fn bytes_used(&self) -> Result<usize, ProgramError> { ... }
    fn bytes_allocated(&self) -> Result<usize, ProgramError> { ... }
}

A trait to abstract the shared, read-only behavior between ListViewReadOnly and ListViewMut.

Required Associated Types

type Item: Pod

The type of the items stored in the list.

type Length: PodLength

Length prefix type used (PodU16, PodU32, …).

Required Methods

fn capacity(&self) -> usize

Returns the total number of items that can be stored in the list.

Provided Methods

fn bytes_used(&self) -> Result<usize, ProgramError>

Returns the number of bytes currently occupied by the live elements

fn bytes_allocated(&self) -> Result<usize, ProgramError>

Returns the number of bytes reserved by the entire backing buffer.

Implementors

impl<T: Pod, L: PodLength> List for ListViewMut<'_, T, L>

type Item = T

type Length = L

impl<T: Pod, L: PodLength> List for ListViewReadOnly<'_, T, L>

type Item = T

type Length = L