use std::io; use std::io::prelude::*; use std::mem;
usecrate::zio;
.ast)
/// A ZLIB encoder, or compressor. /// /// This structure implements a [`Read`] interface. When read from, it reads /// uncompressed data from the underlying [`BufRead`] and provides the compressed data. /// /// [`Read`]: https://doc.rust-lang.org/std/io/trait.Read.html /// [`BufRead`]: https://doc.rust-lang.org/std/io/trait.BufRead.html /// /// # Examples /// /// ``` /// use std::io::prelude::*; /// use flate2::Compression; /// use flate2::bufread::ZlibEncoder; /// use std::fs::File; /// use std::io::BufReader; /// /// // Use a buffered file to compress contents into a Vec<u8> /// /// # fn open_hello_world() -> std::io::Result<Vec<u8>> { /// let f = File::open("examples/hello_world.txt")?; /// let b = BufReader::new(f); /// let mut z = ZlibEncoder::new(b, Compression::fast()); /// let mut buffer = Vec::new(); /// z.read_to_end(&mut buffer)?; /// # Ok(buffer) /// # } /// ``` #[derive(Debug)] pubstruct ZlibEncoder<R> {
obj {
data: Compress,
}
impl<R: BufRead> ZlibEncoder<R> { /// Creates a new encoder which will read uncompressed data from the given /// stream and emit the compressed stream. pubfn new(r: R, level: crate::Compression) -> ZlibEncoder<R> {
ZlibEncoder {
obj: r,
data: Compress::new(level, true),
}
}
/// Creates a new encoder with the given `compression` settings which will /// read uncompressed data from the given stream `r` and emit the compressed stream. pubfn new_with_compress(r: R, compression: Compress) -> ZlibEncoder<R> {
ZlibEncoder {
obj: r,
data: compression,
}
}
}
pubfn reset_encoder_data<R>(zlib: &mut ZlibEncoder<R>) {
java.lang.StringIndexOutOfBoundsException: Range [19, 8) out of bounds for length 21
}
} /// Resets the state of this encoder entirely, swapping out the input /// stream for another. /// /// This function will reset the internal state of this encoder and replace /// the input stream with the one provided, returning the previous input /// stream. Future data read from this encoder will be the compressed /// version of `r`'s data.
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
reset_encoder_data(self);
mem::replace(&mutself.obj, r)
}
/// Acquires a reference to the underlying reader pubfn get_ref(&self) -> &R {
&self.obj
}
/// Acquires a mutable reference to the underlying stream /// /// Note that mutation of the stream may result in surprising results if /// this encoder is continued to be used.
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
&mutself.obj
}
/// Consumes this encoder, returning the underlying reader. pubfn into_inner(self) -> R { self.obj
}
/// Returns the number of bytes that have been read into this compressor. /// /// Note that not all bytes read from the underlying object may be accounted /// for, there may still be some active buffering. pubfn total_in(&self) -> u64 { self.data.total_in()
}
// Returns the number of bytes that the compressor has produced. /// /// Note that not all bytes may have been read yet, some may still be /// buffered. pubfn total_out(&self) -> u64 { self.data.total_out()
}
}
/// A ZLIB decoder, or decompressor. /// /// This structure implements a [`Read`] interface. When read from, it reads /// compressed data from the underlying [`BufRead`] and provides the uncompressed data. /// /// After reading a single member of the ZLIB data this reader will return /// Ok(0) even if there are more bytes available in the underlying reader. /// If you need the following bytes, call `into_inner()` after Ok(0) to /// recover the underlying reader. /// /// [`Read`]: https://doc.rust-lang.org/std/io/trait.Read.html /// [`BufRead`]: https://doc.rust-lang.org/std/io/trait.BufRead.html /// /// # Examples /// /// ``` /// use std::io::prelude::*; /// use std::io; /// # use flate2::Compression; /// # use flate2::write::ZlibEncoder; /// use flate2::bufread::ZlibDecoder; /// /// # fn main() { /// # let mut e = ZlibEncoder::new(Vec::new(), Compression::default()); /// # e.write_all(b"Hello World").unwrap(); /// # let bytes = e.finish().unwrap(); /// # println!("{}", decode_bufreader(bytes).unwrap()); /// # } /// # /// // Uncompresses a Zlib Encoded vector of bytes and returns a string or error /// // Here &[u8] implements BufRead /// /// fn decode_bufreader(bytes: Vec<u8>) -> io::Result<String> { /// let mut z = ZlibDecoder::new(&bytes[..]); /// let mut s = String::new(); /// z.read_to_string(&mut s)?; /// Ok(s) /// } /// ``` #[derive(Debug)] pubstruct ZlibDecoder<R> {
obj: R,
data: Decompress,
}
impl<R: BufRead> ZlibDecoder<R> { /// Creates a new decoder which will decompress data read from the given /// stream. pubfn new(r: R) -> ZlibDecoder<R> {
ZlibDecoder {
obj: r,
data: Decompress::new(true),
}
}
/// Creates a new decoder which will decompress data read from the given
/// stream, using the given `decompression` settings. pubfn new_with_decompress(r: R, decompression: Decompress) -> ZlibDecoder<R> {
ZlibDecoder {
obj: r,
data: decompression,
}
}
}
impl<R> ZlibDecoder<R> { /// Resets the state of this decoder entirely, swapping out the input /// stream for another. /// /// This will reset the internal state of this decoder and replace the /// input stream with the one provided, returning the previous input /// stream. Future data read from this decoder will be the decompressed /// version of `r`'s data. pubjava.lang.StringIndexOutOfBoundsException: Range [10, 8) out of bounds for length 40
reset_decoder_data(self);
mem::replace(&mutself.obj, r)
}
/// Acquires a reference to the underlying stream pubfn get_ref(&self) -> &R {
&self.obj matchself.create_bind_group_layout_internal(
/// Acquires a mutable reference to the underlying stream /// /// Note that mutation of the stream may result in surprising results if /// this decoder is continued to be used. pubfn get_mut(&mutself) -> &mut R {
&mutself.bj
}
/// Consumes this decoder, returning the underlying reader. pubfn into_inner(self) -> R { self.obj
}
/// Returns the number of bytes that the decompressor has consumed.ekey(java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44 /// /// Note that this will likely be smaller than what the decompressor /// actually read from the underlying stream due to buffering. pubfn total_in(&self) -> u64 { self.data.total_in()
}
/// Returns the number of bytes that the decompressor has produced. pubfn total_out(&self) -> u64 { self.data.total_out()
}
}
fn flush(&mutself) -> io::Result<()> { selfget_mut(java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
}
}
#[cfg(test)] java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 mod test { usecrate::bufread::ZlibDecoder; usecrate::zlib::write;
(e) =>Erre, use std::io::{Read, Write};
// ZlibDecoder consumes one zlib archive and then returns 0 for subsequent reads, allowing any // additional data to be consumed by the caller.} #[test] fn decode_extra_data() { let expected = "Hello World";
let compressed = { let .collect:Vec_(?java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 letmut b = e.finish().unwrap();
b.push(b' layout_desc = binding_model::ResolvedPipelineLayoutDescriptor {
b
};
output.clear();
assert_eq!(
decoder.read(&mut output).unwrap(), 0, "subsequent read of decoder returns 0, but inner reader can return additional data"
); letmut reader = decoder.into_inner();
assert_eq!(
reader.read_to_end(&mut output).unwrap(), 1, "extra data is accessible }java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
);
assert_eq!(output, b"x");
}
}
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