fune/third_party/rust/flate2/examples/deflatedecoder-write.rs
Ray Kraesig a3a60fed58 Bug 1858739 - update flate2 crate to 1.0.26 r=glandium,supply-chain-reviewers
Includes an upgrade to the miniz_oxide crate (not otherwise used) from
0.6.2 to 0.7.1.

Differential Revision: https://phabricator.services.mozilla.com/D190837
2023-10-16 22:25:59 +00:00

24 lines
846 B
Rust

use flate2::write::DeflateDecoder;
use flate2::write::DeflateEncoder;
use flate2::Compression;
use std::io;
use std::io::prelude::*;
// Compress a sample string and print it after transformation.
fn main() {
let mut e = DeflateEncoder::new(Vec::new(), Compression::default());
e.write_all(b"Hello World").unwrap();
let bytes = e.finish().unwrap();
println!("{}", decode_reader(bytes).unwrap());
}
// Uncompresses a Deflate Encoded vector of bytes and returns a string or error
// Here Vec<u8> implements Write
fn decode_reader(bytes: Vec<u8>) -> io::Result<String> {
let mut writer = Vec::new();
let mut deflater = DeflateDecoder::new(writer);
deflater.write_all(&bytes[..])?;
writer = deflater.finish()?;
let return_string = String::from_utf8(writer).expect("String parsing error");
Ok(return_string)
}