Files
adler
aho_corasick
async_compression
async_trait
base64
bitflags
bytes
cfg_if
chrono
crc32fast
dirs
dirs_sys
dtoa
encoding_rs
eui48
fallible_iterator
flate2
fnv
foreign_types
foreign_types_shared
form_urlencoded
futures
futures_channel
futures_core
futures_executor
futures_io
futures_macro
futures_sink
futures_task
futures_util
async_await
future
io
lock
sink
stream
task
h2
hashbrown
http
http_body
httparse
httpdate
hyper
hyper_tls
idna
indexmap
iovec
ipnet
itoa
lazy_static
libc
linked_hash_map
log
matches
memchr
mime
mime_guess
miniz_oxide
mio
native_tls
net2
num_integer
num_traits
once_cell
openssl
openssl_probe
openssl_sys
openstack
osauth
osproto
percent_encoding
pin_project
pin_project_internal
pin_project_lite
pin_utils
proc_macro2
proc_macro_hack
proc_macro_nested
quote
regex
regex_syntax
reqwest
rustc_serialize
ryu
serde
serde_derive
serde_json
serde_urlencoded
serde_yaml
slab
socket2
syn
thread_local
time
tinyvec
tokio
future
io
loom
macros
net
park
runtime
stream
sync
task
time
util
tokio_macros
tokio_tls
tokio_util
tower_service
tracing
tracing_core
tracing_futures
try_lock
unicase
unicode_bidi
unicode_normalization
unicode_xid
url
waiter
want
yaml_rust
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
use core::fmt::{Debug, Formatter, Result};

use super::BytesRef;
use crate::{Bytes, BytesMut};

/// Alternative implementation of `std::fmt::Debug` for byte slice.
///
/// Standard `Debug` implementation for `[u8]` is comma separated
/// list of numbers. Since large amount of byte strings are in fact
/// ASCII strings or contain a lot of ASCII strings (e. g. HTTP),
/// it is convenient to print strings as ASCII when possible.
impl Debug for BytesRef<'_> {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
        write!(f, "b\"")?;
        for &b in self.0 {
            // https://doc.rust-lang.org/reference/tokens.html#byte-escapes
            if b == b'\n' {
                write!(f, "\\n")?;
            } else if b == b'\r' {
                write!(f, "\\r")?;
            } else if b == b'\t' {
                write!(f, "\\t")?;
            } else if b == b'\\' || b == b'"' {
                write!(f, "\\{}", b as char)?;
            } else if b == b'\0' {
                write!(f, "\\0")?;
            // ASCII printable
            } else if b >= 0x20 && b < 0x7f {
                write!(f, "{}", b as char)?;
            } else {
                write!(f, "\\x{:02x}", b)?;
            }
        }
        write!(f, "\"")?;
        Ok(())
    }
}

impl Debug for Bytes {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
        Debug::fmt(&BytesRef(&self.as_ref()), f)
    }
}

impl Debug for BytesMut {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
        Debug::fmt(&BytesRef(&self.as_ref()), f)
    }
}