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#![doc(html_root_url = "https://docs.rs/prost/0.4.0")]
extern crate bytes;
#[cfg(test)]
#[macro_use]
extern crate quickcheck;
pub mod error;
mod message;
mod types;
#[doc(hidden)]
pub mod encoding;
pub use message::Message;
pub use error::{DecodeError, EncodeError};
use bytes::{
BufMut,
IntoBuf,
};
use encoding::{
decode_varint,
encode_varint,
encoded_len_varint,
};
pub fn encode_length_delimiter<B>(length: usize, buf: &mut B) -> Result<(), EncodeError> where B: BufMut {
let length = length as u64;
let required = encoded_len_varint(length);
let remaining = buf.remaining_mut();
if required > remaining {
return Err(EncodeError::new(required, remaining));
}
encode_varint(length, buf);
Ok(())
}
pub fn length_delimiter_len(length: usize) -> usize {
encoded_len_varint(length as u64)
}
pub fn decode_length_delimiter<B>(buf: B) -> Result<usize, DecodeError> where B: IntoBuf {
let mut buf = buf.into_buf();
let length = decode_varint(&mut buf)?;
if length > usize::max_value() as u64 {
return Err(DecodeError::new("length delimiter exceeds maximum usize value"));
}
Ok(length as usize)
}