[−][src]Struct libflate::zlib::Encoder
ZLIB encoder.
Methods
impl<W> Encoder<W, DefaultLz77Encoder> where
W: Write,
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W: Write,
pub fn new(inner: W) -> Result<Self>
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Makes a new encoder instance.
Encoded ZLIB stream is written to inner
.
Examples
use std::io::Write; use libflate::zlib::Encoder; let mut encoder = Encoder::new(Vec::new()).unwrap(); encoder.write_all(b"Hello World!").unwrap(); assert_eq!(encoder.finish().into_result().unwrap(), vec![120, 156, 5, 192, 49, 13, 0, 0, 8, 3, 65, 43, 224, 6, 7, 24, 128, 237, 147, 38, 245, 63, 244, 230, 65, 181, 50, 215, 1, 28, 73, 4, 62]);
impl<W, E> Encoder<W, E> where
W: Write,
E: Lz77Encode,
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W: Write,
E: Lz77Encode,
pub fn with_options(inner: W, options: EncodeOptions<E>) -> Result<Self>
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Makes a new encoder instance with specified options.
Encoded ZLIB stream is written to inner
.
Examples
use std::io::Write; use libflate::zlib::{Encoder, EncodeOptions}; let options = EncodeOptions::new().no_compression(); let mut encoder = Encoder::with_options(Vec::new(), options).unwrap(); encoder.write_all(b"Hello World!").unwrap(); assert_eq!(encoder.finish().into_result().unwrap(), [120, 1, 1, 12, 0, 243, 255, 72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33, 28, 73, 4, 62]);
pub fn header(&self) -> &Header
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Returns the header of the ZLIB stream.
Examples
use libflate::zlib::{Encoder, Lz77WindowSize}; let encoder = Encoder::new(Vec::new()).unwrap(); assert_eq!(encoder.header().window_size(), Lz77WindowSize::KB32);
pub fn finish(self) -> Finish<W, Error>
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Writes the ZLIB trailer and returns the inner stream.
Examples
use std::io::Write; use libflate::zlib::Encoder; let mut encoder = Encoder::new(Vec::new()).unwrap(); encoder.write_all(b"Hello World!").unwrap(); assert_eq!(encoder.finish().into_result().unwrap(), vec![120, 156, 5, 192, 49, 13, 0, 0, 8, 3, 65, 43, 224, 6, 7, 24, 128, 237, 147, 38, 245, 63, 244, 230, 65, 181, 50, 215, 1, 28, 73, 4, 62]);
Note
If you are not concerned the result of this encoding,
it may be convenient to use AutoFinishUnchecked
instead of the explicit invocation of this method.
use std::io; use libflate::finish::AutoFinishUnchecked; use libflate::zlib::Encoder; let plain = b"Hello World!"; let mut buf = Vec::new(); let mut encoder = AutoFinishUnchecked::new(Encoder::new(&mut buf).unwrap()); io::copy(&mut &plain[..], &mut encoder).unwrap();
pub fn as_inner_ref(&self) -> &W
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Returns the immutable reference to the inner stream.
pub fn as_inner_mut(&mut self) -> &mut W
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Returns the mutable reference to the inner stream.
pub fn into_inner(self) -> W
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Unwraps the Encoder
, returning the inner stream.
Trait Implementations
impl<W, E> Complete for Encoder<W, E> where
W: Write,
E: Lz77Encode,
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W: Write,
E: Lz77Encode,
impl<W: Debug, E: Debug> Debug for Encoder<W, E>
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impl<W, E> Write for Encoder<W, E> where
W: Write,
E: Lz77Encode,
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W: Write,
E: Lz77Encode,
fn write(&mut self, buf: &[u8]) -> Result<usize>
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fn flush(&mut self) -> Result<()>
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default fn write_vectored(&mut self, bufs: &[IoVec]) -> Result<usize, Error>
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iovec
)Like write
, except that it writes from a slice of buffers. Read more
default fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
1.0.0[src]
Attempts to write an entire buffer into this writer. Read more
default fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>
1.0.0[src]
Writes a formatted string into this writer, returning any error encountered. Read more
default fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Creates a "by reference" adaptor for this instance of Write
. Read more
Auto Trait Implementations
impl<W, E> Send for Encoder<W, E> where
E: Send,
W: Send,
E: Send,
W: Send,
impl<W, E> Sync for Encoder<W, E> where
E: Sync,
W: Sync,
E: Sync,
W: Sync,
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<W> WriteBytesExt for W where
W: Write + ?Sized,
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W: Write + ?Sized,
default fn write_u8(&mut self, n: u8) -> Result<(), Error>
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Writes an unsigned 8 bit integer to the underlying writer. Read more
default fn write_i8(&mut self, n: i8) -> Result<(), Error>
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Writes a signed 8 bit integer to the underlying writer. Read more
default fn write_u16<T>(&mut self, n: u16) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes an unsigned 16 bit integer to the underlying writer. Read more
default fn write_i16<T>(&mut self, n: i16) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes a signed 16 bit integer to the underlying writer. Read more
default fn write_u24<T>(&mut self, n: u32) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes an unsigned 24 bit integer to the underlying writer. Read more
default fn write_i24<T>(&mut self, n: i32) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes a signed 24 bit integer to the underlying writer. Read more
default fn write_u32<T>(&mut self, n: u32) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes an unsigned 32 bit integer to the underlying writer. Read more
default fn write_i32<T>(&mut self, n: i32) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes a signed 32 bit integer to the underlying writer. Read more
default fn write_u48<T>(&mut self, n: u64) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes an unsigned 48 bit integer to the underlying writer. Read more
default fn write_i48<T>(&mut self, n: i64) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes a signed 48 bit integer to the underlying writer. Read more
default fn write_u64<T>(&mut self, n: u64) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes an unsigned 64 bit integer to the underlying writer. Read more
default fn write_i64<T>(&mut self, n: i64) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes a signed 64 bit integer to the underlying writer. Read more
default fn write_u128<T>(&mut self, n: u128) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes an unsigned 128 bit integer to the underlying writer.
default fn write_i128<T>(&mut self, n: i128) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes a signed 128 bit integer to the underlying writer.
default fn write_uint<T>(&mut self, n: u64, nbytes: usize) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes an unsigned n-bytes integer to the underlying writer. Read more
default fn write_int<T>(&mut self, n: i64, nbytes: usize) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes a signed n-bytes integer to the underlying writer. Read more
default fn write_uint128<T>(
&mut self,
n: u128,
nbytes: usize
) -> Result<(), Error> where
T: ByteOrder,
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&mut self,
n: u128,
nbytes: usize
) -> Result<(), Error> where
T: ByteOrder,
Writes an unsigned n-bytes integer to the underlying writer. Read more
default fn write_int128<T>(
&mut self,
n: i128,
nbytes: usize
) -> Result<(), Error> where
T: ByteOrder,
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&mut self,
n: i128,
nbytes: usize
) -> Result<(), Error> where
T: ByteOrder,
Writes a signed n-bytes integer to the underlying writer. Read more
default fn write_f32<T>(&mut self, n: f32) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes a IEEE754 single-precision (4 bytes) floating point number to the underlying writer. Read more
default fn write_f64<T>(&mut self, n: f64) -> Result<(), Error> where
T: ByteOrder,
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T: ByteOrder,
Writes a IEEE754 double-precision (8 bytes) floating point number to the underlying writer. Read more