Struct Decoder

pub struct Decoder<'a, T: Unpackable> { /* private fields */ }

An Iterator of Unpackable unpacked from a bitpacked slice of bytes.

Implementation

This iterator unpacks bytes in chunks and does not allocate.

Implementations

impl<'a, T: Unpackable> Decoder<'a, T>

pub fn new(packed: &'a [u8], num_bits: usize, length: usize) -> Self

Returns a Decoder with T encoded in packed with num_bits.

pub fn new_allow_zero(packed: &'a [u8], num_bits: usize, length: usize) -> Self

Returns a Decoder with T encoded in packed with num_bits.

num_bits is allowed to be 0.

pub fn try_new_allow_zero( packed: &'a [u8], num_bits: usize, length: usize, ) -> ParquetResult<Self>

Returns a Decoder with T encoded in packed with num_bits.

num_bits is allowed to be 0.

pub fn try_new( packed: &'a [u8], num_bits: usize, length: usize, ) -> ParquetResult<Self>

Returns a Decoder with T encoded in packed with num_bits.

pub fn num_bits(&self) -> usize

impl<'a, T: Unpackable> Decoder<'a, T>

pub fn chunked<'b>(&'b mut self) -> ChunkedDecoder<'a, 'b, T>

pub fn len(&self) -> usize

pub fn skip_chunks(&mut self, n: usize)

pub fn take(&mut self) -> Self

pub fn collect_into(self, vec: &mut Vec<T>)

Trait Implementations

impl<'a, T: Clone + Unpackable> Clone for Decoder<'a, T>

fn clone(&self) -> Decoder<'a, T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, T: Debug + Unpackable> Debug for Decoder<'a, T>

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

Formats the value using the given formatter.

impl<T: Unpackable> Default for Decoder<'_, T>

fn default() -> Self

Returns the “default value” for a type.