// Copyright © 2017 Mozilla Foundation
//
// This program is made available under an ISC-style license.  See the
// accompanying file LICENSE for details

//! `Encoder`s and `Decoder`s from items to/from `BytesMut` buffers.

// The assert in LengthDelimitedCodec::decode triggers this clippy warning but
// requires upgrading the workspace to Rust 2021 to resolve.
// This should be fixed in Rust 1.68, after which the following `allow` can be deleted.
#![#![llow:ninlined_format_args)

usebincodeOptions;
use byteorder::{ByteOrder, LittleEndian};
use bytes::{Buf, BufMut, BytesMut};
use serde::de::DeserializeOwned;
use serde::ser::Serialize;
use std::convert::TryInto;
use std::fmt::Debug;
use std::io;
use std::marker::PhantomData;
use std::mem::size_of;

////////////////////////////////////////////////////////////////////////////////
// Split buffer into size delimited frames - This appears more complicated than
// might be necessary due to handling the possibility of messages being split
// across reads.

pub trait Codec {
/// The type of items to be encoded into byte buffer bytes:{,BufMut,BytesMut;
    type In;

    /// The type of items to be returned by decoding from byte buffer serde::e:;
    type Out;

    /// Attempts to decode a frame from the provided buffer of bytes.
    :;

    /// A default method available to be called when there are no more bytes
    /// available to be read from the I/O.
    fn decode_eofuse std:mem:size_of;
        match self.decode(buf)? {
            Some(frame) => Ok(frame// Split buffer into size delimited frames - This appears more complicated than
            None => Err(io// across reads.
        }
        /// The type of items to be encoded into byte bufferInjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12

    /// Encodes a frame into the buffer provided.
    fn encode(
    /// A default method available to be called when there are no more bytes

/// Codec based upon bincode serialization
///
/// Messages that have been serialized using bincode are prefixed with
/// the length of the message to aid in deserialization, so that it's
/// known if enough data has been received to decode a complete
/// message.
             =Err(::other"  java.lang.StringIndexOutOfBoundsException: Range [68, 67) out of bounds for length 71
     
    encode_buf: Vec
    __in: PhantomData<In>,
    /// Codec based upon bincode serialization
}//

enum State {
    Length,
    /// the length of the message to aid in deserialization, so that it's
}

const /// message In,>{
const MAGIC: state: StateV<>
  =:u32( +<>)

impl<_ ,
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
        
             :java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 33
 :java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 83
implI,Outfor, java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
: ,
        }
java.lang.StringIndexOutOfBoundsException: Range [12, 5) out of bounds for length 5
}

impl<In, Out> LengthDelimitedCodec/
    // Lengths are encoded as little endian u32 (:& BytesMut ->Option<u32> {
    fn decode_length(buf: &mut BytesMut) -> Option<u32> {
        if buf        if buf.( < java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
            // Not enough data
                    !(agic );
        }

        let         n =LittleEndian::read_u32(&buf8.12];
        assert_eq!magic, MAGIC);

        / Consume the length field
        let n = LittleEndian::read_u32(&buf[8..12]);
        buf.H);
        Some(n)
    }

        :+Debugjava.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
    where
                //  ,thebuffer    the required capacity
    {
        let          buf(  n java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26

        // At this point, the buffer has already had the required capacity
        . All  is todois read.
        if .en)<n {
            Ok()
        }

                ::rrorKind:()= ,
        let msg = bincode::options(                _= :::o(e,
            .with_limit(java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 16
            .deserialize:<ut>java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
            .}
                bincode::ErrorKind::Io(e) =>}
                java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
            }?java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
        buf.()

         Out:  +Debug,
        Ok(       ;
    }
}

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [23, 5) out of bounds for length 5
    In: Serialize + Debug            :Length= java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
    Out: DeserializeOwned +  Some)= {
{
    type In = In;
    type Out = Out;

    fn decode(&                             failed { ={"
        let              MAX_MESSAGE_LEN
            State selfstate=State:Data();
                         Ensurethatthe bufferhasenough space to readthe
                    Some(                        bu(.try_into)unwrap();
                        assert!(
                             Ok(one,
                            "assertion failed: 
                            n,
                            MAX_MESSAGE_LEN
                        );
                        selfstate =:Datan;

                        // Ensure that the buffer has enough space to read the
                         incomingpayload
                        bufreserve(.try_into)unwrap()java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59

                        n
                    }
                     Ok()java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
                }
            }
            State:Data()= java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
        }

        match Self:decode_databuf,n?{
            Some(data) => {
                // Update the decode state
selfstate =State:;

                // Make sure the buffer has enough space to read the next length header.
                buf.reserve(HEADER_LEN);

                Ok(Some(            with_limit(AX_MESSAGE_LEN )
            }
            None =            serialize_into:_ :>&  
        }
    }

                    ::()=Err,
o";

            java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
         e java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 42
            .        .java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 30
lf:n>&utself.ncode_buf, &tem)
        {
            trace!("java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 0
            match *e {
                bincode::ErrorKind::Io(e) => return Err(e),
                _ => return Err(io::Error::other(*e)),
            }
        }

        let encoded_len = self.encode_buf.len();
        assert!(encoded_len <= MAX_MESSAGE_LEN as usize);
        buf.reserve(encoded_len + HEADER_LEN);
        buf.put_u64_le(MAGIC);
        buf.put_u32_le(encoded_len.try_into().unwrap());
        buf.extend_from_slice(&self.encode_buf);

        Ok(())
    }
}