Struct libflate::deflate::Encoder

pub struct Encoder<W, E = DefaultLz77Encoder> { /* fields omitted */ }

DEFLATE encoder.

Methods

impl<W> Encoder<W, DefaultLz77Encoder> where
    W: Write, 

fn new(inner: W) -> Self

Makes a new encoder instance.

Encoded DEFLATE stream is written to inner.

Examples

use std::io::Write;
use libflate::deflate::Encoder;

let mut encoder = Encoder::new(Vec::new());
encoder.write_all(b"Hello World!").unwrap();

assert_eq!(encoder.finish().into_result().unwrap(),
           [5, 128, 65, 9, 0, 0, 8, 3, 171, 104, 27, 27, 88, 64, 127,
            7, 131, 245, 127, 140, 121, 80, 173, 204, 117, 0]);

impl<W, E> Encoder<W, E> where
    W: Write,
    E: Lz77Encode, 

fn with_options(inner: W, options: EncodeOptions<E>) -> Self

Makes a new encoder instance with specified options.

Encoded DEFLATE stream is written to inner.

Examples

use std::io::Write;
use libflate::deflate::{Encoder, EncodeOptions};

let options = EncodeOptions::new().no_compression();
let mut encoder = Encoder::with_options(Vec::new(), options);
encoder.write_all(b"Hello World!").unwrap();

assert_eq!(encoder.finish().into_result().unwrap(),
           [1, 12, 0, 243, 255, 72, 101, 108, 108, 111, 32, 87, 111,
            114, 108, 100, 33]);

fn finish(self) -> Finish<W, Error>

Flushes internal buffer and returns the inner stream.

Examples

use std::io::Write;
use libflate::deflate::Encoder;

let mut encoder = Encoder::new(Vec::new());
encoder.write_all(b"Hello World!").unwrap();

assert_eq!(encoder.finish().into_result().unwrap(),
           [5, 128, 65, 9, 0, 0, 8, 3, 171, 104, 27, 27, 88, 64, 127,
            7, 131, 245, 127, 140, 121, 80, 173, 204, 117, 0]);

fn as_inner_ref(&self) -> &W

Returns the immutable reference to the inner stream.

fn as_inner_mut(&mut self) -> &mut W

Returns the mutable reference to the inner stream.

fn into_inner(self) -> W

Unwraps the Encoder, returning the inner stream.

Trait Implementations

impl<W: Debug, E: Debug> Debug for Encoder<W, E>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<W, E> Write for Encoder<W, E> where
    W: Write,
    E: Lz77Encode, 

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

Write a buffer into this object, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

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

Attempts to write an entire buffer into this write.

fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

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

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