Struct huffman_coding::HuffmanReader

pub struct HuffmanReader<R> where
    R: Read,  { /* fields omitted */ }

HuffmanReader is a Read implementation that can read encoded words from the inner reader

Examples

extern crate huffman_coding;
let pseudo_data = vec![0, 0, 1, 2, 2];
let tree = huffman_coding::HuffmanTree::from_data(&pseudo_data[..]);

use std::io::{Read, Cursor};
let cursor = Cursor::new([43, 8]);
let mut buffer: [u8; 5] = [0; 5];

let mut reader = huffman_coding::HuffmanReader::new(cursor, tree);
assert!(reader.read_exact(&mut buffer[..]).is_ok());
assert_eq!(&buffer[..], &[2, 2, 0, 0, 1]);

Methods

impl<R> HuffmanReader<R> where
    R: Read, 

fn new(reader: R, tree: HuffmanTree) -> Self

Construct a new reader, using the provided HuffmanTree for decoding

Trait Implementations

impl<R> Read for HuffmanReader<R> where
    R: Read, 

fn read(&mut self, buf: &mut [u8]) -> IOResult<usize>

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>

Read all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>

Read all bytes until EOF in this source, placing them into buf.

fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>

Read the exact number of bytes required to fill buf.

fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Read.

fn bytes(self) -> Bytes<Self>

Transforms this Read instance to an Iterator over its bytes.

fn chars(self) -> Chars<Self>

🔬 This is a nightly-only experimental API. (io)

the semantics of a partial read/write of where errors happen is currently unclear and may change

Transforms this Read instance to an Iterator over chars.

fn chain<R>(self, next: R) -> Chain<Self, R> where
    R: Read, 

Creates an adaptor which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

Creates an adaptor which will read at most limit bytes from it.