mirror of https://git.sr.ht/~stygianentity/bincode
54 lines
1.5 KiB
Rust
54 lines
1.5 KiB
Rust
#![crate_name = "bincode"]
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#![crate_type = "rlib"]
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#![crate_type = "dylib"]
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#![feature(struct_variant)]
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extern crate serialize;
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use std::io::Buffer;
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use std::io::MemWriter;
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use std::io::MemReader;
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use std::io::IoError;
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use std::io::IoResult;
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use serialize::Encodable;
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use serialize::Decodable;
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pub use writer::EncoderWriter;
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pub use reader::DecoderReader;
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mod writer;
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mod reader;
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pub fn encode<'a, T: Encodable<EncoderWriter<'a, MemWriter>, IoError>>(t: &T) ->IoResult<Vec<u8>> {
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let mut w = MemWriter::new();
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match encode_into(t, &mut w) {
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Ok(()) => Ok(w.unwrap()),
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Err(e) => Err(e)
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}
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}
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pub fn decode<'a, T: Decodable<DecoderReader<'a, MemReader>, IoError>>(b: Vec<u8>) -> IoResult<T> {
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decode_from(&mut MemReader::new(b))
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}
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// In order to be able to pass MemReaders/MemWriters by reference, I borrowed the method used in
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// the current json encoder in the stdlib
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// TODO: Make code safe https://github.com/rust-lang/rust/issues/14302
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pub fn encode_into<'a, W: 'a+Writer, T: Encodable<EncoderWriter<'a, W>, IoError>>(t: &T, w: &mut W) -> IoResult<()> {
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unsafe {
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t.encode(std::mem::transmute(&mut writer::EncoderWriter::new(w)))
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}
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}
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// TODO: Make code safe https://github.com/rust-lang/rust/issues/14302
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pub fn decode_from<'a, R: 'a+Reader+Buffer, T: Decodable<DecoderReader<'a, R>, IoError>>(r: &mut R) -> IoResult<T> {
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unsafe {
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Decodable::decode(std::mem::transmute(&mut reader::DecoderReader::new(r)))
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}
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}
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#[cfg(test)]
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mod test;
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