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-rw-r--r--third_party/rust/flate2/examples/deflatedecoder-write.rs26
1 files changed, 26 insertions, 0 deletions
diff --git a/third_party/rust/flate2/examples/deflatedecoder-write.rs b/third_party/rust/flate2/examples/deflatedecoder-write.rs
new file mode 100644
index 0000000000..276490bac2
--- /dev/null
+++ b/third_party/rust/flate2/examples/deflatedecoder-write.rs
@@ -0,0 +1,26 @@
+extern crate flate2;
+
+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)
+}