1 files changed, 24 insertions, 0 deletions
diff --git a/third_party/rust/flate2/examples/zlibdecoder-read.rs b/third_party/rust/flate2/examples/zlibdecoder-read.rs
new file mode 100644
index 0000000000..f7e5fb0af6
--- /dev/null
+++ b/third_party/rust/flate2/examples/zlibdecoder-read.rs
@@ -0,0 +1,24 @@
+extern crate flate2;
+
+use flate2::read::ZlibDecoder;
+use flate2::write::ZlibEncoder;
+use flate2::Compression;
+use std::io;
+use std::io::prelude::*;
+
+// Compress a sample string and print it after transformation.
+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_reader(bytes).unwrap());
+}
+
+// Uncompresses a Zlib Encoded vector of bytes and returns a string or error
+// Here &[u8] implements Read
+fn decode_reader(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)
+}