vec_deque.rs.html -- source

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arrayvec

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atty

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backtrace

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symbolize

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bincode

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ser

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bitflags

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bytes

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c2_chacha

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offset

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clap

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crossbeam_utils

atomic

atomic_cell.rs consume.rs mod.rs

sync

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

ctrlc

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daemon

daemon.rs lib.rs linux.rs singleton.rs

failure

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error

error_impl.rs mod.rs

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failure_derive

flexi_logger

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getrandom

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glob

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lock_api

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memchr

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net2

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impls.rs mod.rs

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bounds.rs cast.rs float.rs identities.rs int.rs lib.rs macros.rs pow.rs sign.rs

open

parking_lot

condvar.rs deadlock.rs elision.rs lib.rs mutex.rs once.rs raw_mutex.rs raw_rwlock.rs remutex.rs rwlock.rs util.rs

parking_lot_core

thread_parker

linux.rs mod.rs

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pem

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ppv_lite86

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proc_macro2

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rand

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rand_core

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rand_hc

hc128.rs lib.rs

rand_isaac

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rand_jitter

dummy_log.rs error.rs lib.rs platform.rs

rand_os

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rand_pcg

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rand_xorshift

rcgen

regex

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ring

rustc_demangle

legacy.rs lib.rs v0.rs

rustls

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scopeguard

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serde

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private

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ser

impls.rs impossible.rs mod.rs

export.rs integer128.rs lib.rs macros.rs

slab

smallvec

spin

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stream_cancel

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strsim

syn

synstructure

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tempfile

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textwrap

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thread_local

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time

display.rs duration.rs lib.rs parse.rs sys.rs

tokio

codec

length_delimited.rs mod.rs

executor

current_thread

reactor

mod.rs poll_evented.rs

runtime

current_thread

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 fs.rs io.rs lib.rs net.rs prelude.rs sync.rs timer.rs

tokio_codec

bytes_codec.rs lib.rs lines_codec.rs

tokio_core

tokio_current_thread

lib.rs scheduler.rs

tokio_executor

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

tokio_fs

tokio_io

tokio_reactor

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

tokio_rustls

common

mod.rs vecbuf.rs

client.rs lib.rs server.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

tokio_udp

frame.rs lib.rs recv_dgram.rs send_dgram.rs socket.rs

tokio_uds

datagram.rs frame.rs incoming.rs lib.rs listener.rs recv_dgram.rs send_dgram.rs stream.rs ucred.rs

unicode_width

lib.rs tables.rs

unicode_xid

lib.rs tables.rs

untrusted

vec_map

void

webpki

calendar.rs cert.rs der.rs error.rs name.rs signed_data.rs time.rs trust_anchor_util.rs verify_cert.rs webpki.rs

windows_service

x11

dpms.rs glx.rs internal.rs keysym.rs lib.rs link.rs xcursor.rs xf86vmode.rs xfixes.rs xft.rs xinerama.rs xinput.rs xinput2.rs xlib.rs xlib_xcb.rs xmd.rs xmu.rs xrandr.rs xrecord.rs xrender.rs xss.rs xt.rs xtest.rs

xcb

ffi

base.rs big_requests.rs xc_misc.rs xkb.rs xproto.rs

base.rs big_requests.rs lib.rs xc_misc.rs xkb.rs xproto.rs

xkbcommon

xkb

x11

compose.rs ffi.rs keysyms.rs mod.rs

yasna

deserializer

models

der.rs mod.rs oid.rs time.rs

reader

error.rs mod.rs

serializer

tags

writer

use std::collections::VecDeque;

use super::Buf;

impl Buf for VecDeque<u8> {
    fn remaining(&self) -> usize {
        self.len()
    }

    fn bytes(&self) -> &[u8] {
        let (s1, s2) = self.as_slices();
        if s1.is_empty() {
            s2
        } else {
            s1
        }
    }

    fn advance(&mut self, cnt: usize) {
        self.drain(..cnt);
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn hello_world() {
        let mut buffer: VecDeque<u8> = VecDeque::new();
        buffer.extend(b"hello world");
        assert_eq!(11, buffer.remaining());
        assert_eq!(b"hello world", buffer.bytes());
        buffer.advance(6);
        assert_eq!(b"world", buffer.bytes());
        buffer.extend(b" piece");
        assert_eq!(b"world piece" as &[u8], &buffer.collect::<Vec<u8>>()[..]);
    }
}