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.

Dyn Compatibility

This trait is dyn compatible.

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

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