encoder.rs.html -- source

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adler32

backtrace

backtrace

libunwind.rs mod.rs

symbolize

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capture.rs lib.rs print.rs types.rs

backtrace_sys

base64

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encoder.rs mod.rs

chunked_encoder.rs decode.rs display.rs encode.rs lib.rs tables.rs

bigtable

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cfg_if

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crc32fast

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sync

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backoff.rs cache_padded.rs lib.rs thread.rs

curl

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either

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error_chain

backtrace.rs error_chain.rs impl_error_chain_kind.rs lib.rs quick_main.rs

failure

backtrace

internal.rs mod.rs

error

error_impl.rs mod.rs

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failure_derive

flate2

deflate

bufread.rs mod.rs read.rs write.rs

ffi

gz

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zlib

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fnv

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stream

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mod.rs queue.rs

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goauth

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h2

http

header

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uri

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http_body

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hyper

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client

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proto

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h2

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server

conn.rs mod.rs shutdown.rs tcp.rs

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make_service.rs mod.rs new_service.rs service.rs

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hyper_tls

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iovec

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inline_lazy.rs lib.rs

libc

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align.rs mod.rs

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fixed_width_ints.rs lib.rs macros.rs

libz_sys

lock_api

lib.rs mutex.rs remutex.rs rwlock.rs

log

lib.rs macros.rs

matches

maybe_uninit

memoffset

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mime

lib.rs parse.rs

mime_guess

impl_bin_search.rs lib.rs

miniz_oxide

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parking_lot_core

thread_parker

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percent_encoding

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protobuf

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quote

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rand

rand_chacha

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literal

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regex_syntax

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hir

literal

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unicode_tables

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reqwest

rustc_demangle

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rustc_serialize

base64.rs collection_impls.rs hex.rs json.rs lib.rs serialize.rs

ryu

buffer

pretty

exponent.rs mantissa.rs mod.rs

common.rs d2s.rs d2s_full_table.rs d2s_intrinsics.rs digit_table.rs f2s.rs lib.rs

scopeguard

serde

de

from_primitive.rs ignored_any.rs impls.rs mod.rs utf8.rs value.rs

private

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ser

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serde_codegen_internals

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de.rs error.rs iter.rs lib.rs macros.rs map.rs number.rs read.rs ser.rs

serde_urlencoded

ser

key.rs mod.rs pair.rs part.rs value.rs

slab

smallvec

smpl_jwt

error.rs lib.rs

socket2

sys

lib.rs sockaddr.rs socket.rs utils.rs

string

syn

synom

helper.rs lib.rs space.rs

synstructure

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time

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tokio

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mod.rs poll_evented.rs

runtime

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builder.rs mod.rs runtime.rs

threadpool

builder.rs mod.rs shutdown.rs task_executor.rs

util

enumerate.rs future.rs mod.rs stream.rs

clock.rs io.rs lib.rs net.rs prelude.rs timer.rs

tokio_buf

util

chain.rs collect.rs from.rs iter.rs limit.rs mod.rs stream.rs

lib.rs never.rs size_hint.rs str.rs u8.rs

tokio_current_thread

lib.rs scheduler.rs

tokio_executor

enter.rs error.rs executor.rs global.rs lib.rs park.rs typed.rs

tokio_io

tokio_reactor

background.rs lib.rs poll_evented.rs registration.rs sharded_rwlock.rs

tokio_sync

mpsc

block.rs bounded.rs chan.rs list.rs mod.rs unbounded.rs

task

atomic_task.rs mod.rs

lib.rs lock.rs loom.rs oneshot.rs semaphore.rs watch.rs

tokio_tcp

incoming.rs lib.rs listener.rs stream.rs

tokio_threadpool

tokio_timer

try_from

char.rs int.rs lib.rs

try_lock

unicase

unicode

ascii.rs lib.rs

unicode_bidi

char_data

mod.rs tables.rs

deprecated.rs explicit.rs format_chars.rs implicit.rs level.rs lib.rs prepare.rs

unicode_normalization

__test_api.rs decompose.rs lib.rs lookups.rs normalize.rs perfect_hash.rs quick_check.rs recompose.rs stream_safe.rs tables.rs

unicode_xid

lib.rs tables.rs

url

form_urlencoded.rs host.rs lib.rs origin.rs parser.rs path_segments.rs query_encoding.rs quirks.rs slicing.rs

uuid

adapter

core_support

parser

core_support.rs mod.rs std_support.rs

builder.rs core_support.rs lib.rs prelude.rs std_support.rs v4.rs

want

use bytes::BytesMut;
use std::io;

/// Trait of helper objects to write out messages as bytes, for use with
/// `FramedWrite`.

// Note: We can't deprecate this trait, because the deprecation carries through to tokio-codec, and
// there doesn't seem to be a way to un-deprecate the re-export.
pub trait Encoder {
    /// The type of items consumed by the `Encoder`
    type Item;

    /// The type of encoding errors.
    ///
    /// `FramedWrite` requires `Encoder`s errors to implement `From<io::Error>`
    /// in the interest letting it return `Error`s directly.
    type Error: From<io::Error>;

    /// Encodes a frame into the buffer provided.
    ///
    /// This method will encode `item` into the byte buffer provided by `dst`.
    /// The `dst` provided is an internal buffer of the `Framed` instance and
    /// will be written out when possible.
    fn encode(&mut self, item: Self::Item, dst: &mut BytesMut) -> Result<(), Self::Error>;
}