Struct VecBuilder 

pub struct VecBuilder<T> { /* private fields */ }

Helper to build a vector w/ limited memory consumption.

For small vectors the elements are not copied. For larger vectors the elements are only copied once (in contrast to O(log n) when using a normal vector w/o pre-allocation).

Implementations

impl<T> VecBuilder<T>

pub fn new(expected_elements: usize) -> Self

Create new builder.

Panic

Pancis when block size is too small to hold a single element of T. Create new builder.

pub fn new_with_block_size(expected_elements: usize, block_size: usize) -> Self

Panic

Panics when block size is too small to hold a single element of T.

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

Push new element to builder

Panic

Panics when pushing more elements than got specific during builder creation.

impl VecBuilder<u8>

pub fn read_exact<R>(self, reader: &mut R) -> Result<Self, Error>

where R: Read,

Read as many bytes as there are left.

Trait Implementations

impl<T: Debug> Debug for VecBuilder<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> From<VecBuilder<T>> for Vec<T>

fn from(builder: VecBuilder<T>) -> Self

Converts to this type from the input type.