use crate::lib::*;
use crate::ser::{Error, Serialize, SerializeTuple, Serializer};
////////////////////////////////////////////////////////////////////////////////
macro_rules! primitive_impl {
($ty:ident, $method:ident $($cast:tt)*) => {
impl Serialize for $ty {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.$method(*self $($cast)*)
}
}
}
}
primitive_impl!(bool, serialize_bool);
primitive_impl!(isize, serialize_i64 as i64);
primitive_impl!(i8, serialize_i8);
primitive_impl!(i16, serialize_i16);
primitive_impl!(i32, serialize_i32);
primitive_impl!(i64, serialize_i64);
primitive_impl!(i128, serialize_i128);
primitive_impl!(usize, serialize_u64 as u64);
primitive_impl!(u8, serialize_u8);
primitive_impl!(u16, serialize_u16);
primitive_impl!(u32, serialize_u32);
primitive_impl!(u64, serialize_u64);
primitive_impl!(u128, serialize_u128);
primitive_impl!(f32, serialize_f32);
primitive_impl!(f64, serialize_f64);
primitive_impl!(char, serialize_char);
////////////////////////////////////////////////////////////////////////////////
impl Serialize for str {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_str(self)
}
}
#[cfg(any(feature = "std", feature = "alloc"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
impl Serialize for String {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_str(self)
}
}
impl<'a> Serialize for fmt::Arguments<'a> {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_str(self)
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(any(feature = "std", not(no_core_cstr)))]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
impl Serialize for CStr {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_bytes(self.to_bytes())
}
}
#[cfg(any(feature = "std", all(not(no_core_cstr), feature = "alloc")))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
impl Serialize for CString {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_bytes(self.to_bytes())
}
}
////////////////////////////////////////////////////////////////////////////////
impl<T> Serialize for Option<T>
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match *self {
Some(ref value) => serializer.serialize_some(value),
None => serializer.serialize_none(),
}
}
}
////////////////////////////////////////////////////////////////////////////////
impl<T> Serialize for PhantomData<T>
where
T: ?Sized,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_unit_struct("PhantomData")
}
}
////////////////////////////////////////////////////////////////////////////////
// Does not require T: Serialize.
impl<T> Serialize for [T; 0] {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
tri!(serializer.serialize_tuple(0)).end()
}
}
macro_rules! array_impls {
($($len:tt)+) => {
$(
impl<T> Serialize for [T; $len]
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut seq = tri!(serializer.serialize_tuple($len));
for e in self {
tri!(seq.serialize_element(e));
}
seq.end()
}
}
)+
}
}
array_impls! {
01 02 03 04 05 06 07 08 09 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32
}
////////////////////////////////////////////////////////////////////////////////
impl<T> Serialize for [T]
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_seq(self)
}
}
#[cfg(not(no_relaxed_trait_bounds))]
macro_rules! seq_impl {
(
$(#[$attr:meta])*
$ty:ident <T $(: $tbound1:ident $(+ $tbound2:ident)*)* $(, $typaram:ident : $bound:ident)*>
) => {
$(#[$attr])*
impl<T $(, $typaram)*> Serialize for $ty<T $(, $typaram)*>
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_seq(self)
}
}
}
}
#[cfg(no_relaxed_trait_bounds)]
macro_rules! seq_impl {
(
$(#[$attr:meta])*
$ty:ident <T $(: $tbound1:ident $(+ $tbound2:ident)*)* $(, $typaram:ident : $bound:ident)*>
) => {
$(#[$attr])*
impl<T $(, $typaram)*> Serialize for $ty<T $(, $typaram)*>
where
T: Serialize $(+ $tbound1 $(+ $tbound2)*)*,
$($typaram: $bound,)*
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_seq(self)
}
}
}
}
seq_impl! {
#[cfg(any(feature = "std", feature = "alloc"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
BinaryHeap<T: Ord>
}
seq_impl! {
#[cfg(any(feature = "std", feature = "alloc"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
BTreeSet<T: Ord>
}
seq_impl! {
#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
HashSet<T: Eq + Hash, H: BuildHasher>
}
seq_impl! {
#[cfg(any(feature = "std", feature = "alloc"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
LinkedList<T>
}
seq_impl! {
#[cfg(any(feature = "std", feature = "alloc"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
Vec<T>
}
seq_impl! {
#[cfg(any(feature = "std", feature = "alloc"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
VecDeque<T>
}
////////////////////////////////////////////////////////////////////////////////
impl<Idx> Serialize for Range<Idx>
where
Idx: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use super::SerializeStruct;
let mut state = tri!(serializer.serialize_struct("Range", 2));
tri!(state.serialize_field("start", &self.start));
tri!(state.serialize_field("end", &self.end));
state.end()
}
}
////////////////////////////////////////////////////////////////////////////////
impl<Idx> Serialize for RangeFrom<Idx>
where
Idx: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use super::SerializeStruct;
let mut state = tri!(serializer.serialize_struct("RangeFrom", 1));
tri!(state.serialize_field("start", &self.start));
state.end()
}
}
////////////////////////////////////////////////////////////////////////////////
impl<Idx> Serialize for RangeInclusive<Idx>
where
Idx: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use super::SerializeStruct;
let mut state = tri!(serializer.serialize_struct("RangeInclusive", 2));
tri!(state.serialize_field("start", &self.start()));
tri!(state.serialize_field("end", &self.end()));
state.end()
}
}
////////////////////////////////////////////////////////////////////////////////
impl<Idx> Serialize for RangeTo<Idx>
where
Idx: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use super::SerializeStruct;
let mut state = tri!(serializer.serialize_struct("RangeTo", 1));
tri!(state.serialize_field("end", &self.end));
state.end()
}
}
////////////////////////////////////////////////////////////////////////////////
impl<T> Serialize for Bound<T>
where
T: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match *self {
Bound::Unbounded => serializer.serialize_unit_variant("Bound", 0, "Unbounded"),
Bound::Included(ref value) => {
serializer.serialize_newtype_variant("Bound", 1, "Included", value)
}
Bound::Excluded(ref value) => {
serializer.serialize_newtype_variant("Bound", 2, "Excluded", value)
}
}
}
}
////////////////////////////////////////////////////////////////////////////////
impl Serialize for () {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_unit()
}
}
#[cfg(feature = "unstable")]
#[cfg_attr(docsrs, doc(cfg(feature = "unstable")))]
impl Serialize for ! {
fn serialize<S>(&self, _serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
*self
}
}
////////////////////////////////////////////////////////////////////////////////
macro_rules! tuple_impls {
($($len:expr => ($($n:tt $name:ident)+))+) => {
$(
#[cfg_attr(docsrs, doc(hidden))]
impl<$($name),+> Serialize for ($($name,)+)
where
$($name: Serialize,)+
{
tuple_impl_body!($len => ($($n)+));
}
)+
};
}
macro_rules! tuple_impl_body {
($len:expr => ($($n:tt)+)) => {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut tuple = tri!(serializer.serialize_tuple($len));
$(
tri!(tuple.serialize_element(&self.$n));
)+
tuple.end()
}
};
}
#[cfg_attr(docsrs, doc(fake_variadic))]
#[cfg_attr(
docsrs,
doc = "This trait is implemented for tuples up to 16 items long."
)]
impl<T> Serialize for (T,)
where
T: Serialize,
{
tuple_impl_body!(1 => (0));
}
tuple_impls! {
2 => (0 T0 1 T1)
3 => (0 T0 1 T1 2 T2)
4 => (0 T0 1 T1 2 T2 3 T3)
5 => (0 T0 1 T1 2 T2 3 T3 4 T4)
6 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5)
7 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6)
8 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7)
9 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8)
10 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9)
11 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10)
12 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10 11 T11)
13 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10 11 T11 12 T12)
14 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10 11 T11 12 T12 13 T13)
15 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10 11 T11 12 T12 13 T13 14 T14)
16 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10 11 T11 12 T12 13 T13 14 T14 15 T15)
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(not(no_relaxed_trait_bounds))]
macro_rules! map_impl {
(
$(#[$attr:meta])*
$ty:ident <K $(: $kbound1:ident $(+ $kbound2:ident)*)*, V $(, $typaram:ident : $bound:ident
)*>
) => {
$(#[$attr])*
impl<K, V $(, $typaram)*> Serialize for $ty<K, V $(, $typaram)*>
where
K: Serialize,
V: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_map(self)
}
}
}
}
#[cfg(no_relaxed_trait_bounds)]
macro_rules! map_impl {
(
$(#[$attr:meta])*
$ty:ident <K $(: $kbound1:ident $(+ $kbound2:ident)*)*, V $(, $typaram:ident : $bound:ident)*>
) => {
$(#[$attr])*
impl<K, V $(, $typaram)*> Serialize for $ty<K, V $(, $typaram)*>
where
K: Serialize $(+ $kbound1 $(+ $kbound2)*)*,
V: Serialize,
$($typaram: $bound,)*
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_map(self)
}
}
}
}
map_impl! {
#[cfg(any(feature = "std", feature = "alloc"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
BTreeMap<K: Ord, V>
}
map_impl! {
#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
HashMap<K: Eq + Hash, V, H: BuildHasher>
}
////////////////////////////////////////////////////////////////////////////////
macro_rules! deref_impl {
(
$(#[$attr:meta])*
<$($desc:tt)+
) => {
$(#[$attr])*
impl <$($desc)+ {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
(**self).serialize(serializer)
}
}
};
}
deref_impl! {
<'a, T> Serialize for &'a T where T: ?Sized + Serialize
}
deref_impl! {
<'a, T> Serialize for &'a mut T where T: ?Sized + Serialize
}
deref_impl! {
#[cfg(any(feature = "std", feature = "alloc"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
<T> Serialize for Box<T> where T: ?Sized + Serialize
}
deref_impl! {
/// This impl requires the [`"rc"`] Cargo feature of Serde.
///
/// Serializing a data structure containing `Rc` will serialize a copy of
/// the contents of the `Rc` each time the `Rc` is referenced within the
/// data structure. Serialization will not attempt to deduplicate these
/// repeated data.
///
/// [`"rc"`]: https://serde.rs/feature-flags.html#-features-rc
#[cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))]
#[cfg_attr(docsrs, doc(cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))))]
<T> Serialize for Rc<T> where T: ?Sized + Serialize
}
deref_impl! {
/// This impl requires the [`"rc"`] Cargo feature of Serde.
///
/// Serializing a data structure containing `Arc` will serialize a copy of
/// the contents of the `Arc` each time the `Arc` is referenced within the
/// data structure. Serialization will not attempt to deduplicate these
/// repeated data.
///
/// [`"rc"`]: https://serde.rs/feature-flags.html#-features-rc
#[cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))]
#[cfg_attr(docsrs, doc(cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))))]
<T> Serialize for Arc<T> where T: ?Sized + Serialize
}
deref_impl! {
#[cfg(any(feature = "std", feature = "alloc"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "std", feature = "alloc"))))]
<'a, T> Serialize for Cow<'a, T> where T: ?Sized + Serialize + ToOwned
}
////////////////////////////////////////////////////////////////////////////////
/// This impl requires the [`"rc"`] Cargo feature of Serde.
///
/// [`"rc"`]: https://serde.rs/feature-flags.html#-features-rc
#[cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))]
#[cfg_attr(
docsrs,
doc(cfg(all(feature = "rc", any(feature = "std", feature = "alloc"))))
)]
impl<T> Serialize for RcWeak<T>
where
T: ?Sized + Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.upgrade().serialize(serializer)
}
}
/// This impl requires the [`"rc"`] Cargo feature of Serde.
///
/// [`"rc"`]: https://serde.rs/feature-flags.html#-features-rc
#[cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))]
#[cfg_attr(
docsrs,
doc(cfg(all(feature = "rc", any(feature = "std", feature = "alloc"))))
)]
impl<T> Serialize for ArcWeak<T>
where
T: ?Sized + Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.upgrade().serialize(serializer)
}
}
////////////////////////////////////////////////////////////////////////////////
macro_rules! nonzero_integers {
($($T:ident,)+) => {
$(
impl Serialize for num::$T {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.get().serialize(serializer)
}
}
)+
}
}
nonzero_integers! {
NonZeroU8,
NonZeroU16,
NonZeroU32,
NonZeroU64,
NonZeroU128,
NonZeroUsize,
}
#[cfg(not(no_num_nonzero_signed))]
nonzero_integers! {
NonZeroI8,
NonZeroI16,
NonZeroI32,
NonZeroI64,
NonZeroI128,
NonZeroIsize,
}
impl<T> Serialize for Cell<T>
where
T: Serialize + Copy,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.get().serialize(serializer)
}
}
impl<T> Serialize for RefCell<T>
where
T: ?Sized + Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self.try_borrow() {
Ok(value) => value.serialize(serializer),
Err(_) => Err(S::Error::custom("already mutably borrowed")),
}
}
}
#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
impl<T> Serialize for Mutex<T>
where
T: ?Sized + Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self.lock() {
Ok(locked) => locked.serialize(serializer),
Err(_) => Err(S::Error::custom("lock poison error while serializing")),
}
}
}
#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
impl<T> Serialize for RwLock<T>
where
T: ?Sized + Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self.read() {
Ok(locked) => locked.serialize(serializer),
Err(_) => Err(S::Error::custom("lock poison error while serializing")),
}
}
}
////////////////////////////////////////////////////////////////////////////////
impl<T, E> Serialize for Result<T, E>
where
T: Serialize,
E: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match *self {
Result::Ok(ref value) => serializer.serialize_newtype_variant("Result", 0, "Ok", value),
Result::Err(ref value) => {
serializer.serialize_newtype_variant("Result", 1, "Err", value)
}
}
}
}
////////////////////////////////////////////////////////////////////////////////
impl Serialize for Duration {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use super::SerializeStruct;
let mut state = tri!(serializer.serialize_struct("Duration", 2));
tri!(state.serialize_field("secs", &self.as_secs()));
tri!(state.serialize_field("nanos", &self.subsec_nanos()));
state.end()
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
impl Serialize for SystemTime {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use super::SerializeStruct;
let duration_since_epoch = match self.duration_since(UNIX_EPOCH) {
Ok(duration_since_epoch) => duration_since_epoch,
Err(_) => return Err(S::Error::custom("SystemTime must be later than UNIX_EPOCH")),
};
let mut state = tri!(serializer.serialize_struct("SystemTime", 2));
tri!(state.serialize_field("secs_since_epoch", &duration_since_epoch.as_secs()));
tri!(state.serialize_field("nanos_since_epoch", &duration_since_epoch.subsec_nanos()));
state.end()
}
}
////////////////////////////////////////////////////////////////////////////////
/// Serialize a value that implements `Display` as a string, when that string is
/// statically known to never have more than a constant `MAX_LEN` bytes.
///
/// Panics if the `Display` impl tries to write more than `MAX_LEN` bytes.
#[cfg(any(feature = "std", not(no_core_net)))]
macro_rules! serialize_display_bounded_length {
($value:expr, $max:expr, $serializer:expr) => {{
let mut buffer = [0u8; $max];
let mut writer = crate::format::Buf::new(&mut buffer);
write!(&mut writer, "{}", $value).unwrap();
$serializer.serialize_str(writer.as_str())
}};
}
#[cfg(any(feature = "std", not(no_core_net)))]
impl Serialize for net::IpAddr {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
match *self {
net::IpAddr::V4(ref a) => a.serialize(serializer),
net::IpAddr::V6(ref a) => a.serialize(serializer),
}
} else {
match *self {
net::IpAddr::V4(ref a) => {
serializer.serialize_newtype_variant("IpAddr", 0, "V4", a)
}
net::IpAddr::V6(ref a) => {
serializer.serialize_newtype_variant("IpAddr", 1, "V6", a)
}
}
}
}
}
#[cfg(any(feature = "std", not(no_core_net)))]
const DEC_DIGITS_LUT: &[u8] = b"\
0001020304050607080910111213141516171819\
2021222324252627282930313233343536373839\
4041424344454647484950515253545556575859\
6061626364656667686970717273747576777879\
8081828384858687888990919293949596979899";
#[cfg(any(feature = "std", not(no_core_net)))]
#[inline]
fn format_u8(mut n: u8, out: &mut [u8]) -> usize {
if n >= 100 {
let d1 = ((n % 100) << 1) as usize;
n /= 100;
out[0] = b'0' + n;
out[1] = DEC_DIGITS_LUT[d1];
out[2] = DEC_DIGITS_LUT[d1 + 1];
3
} else if n >= 10 {
let d1 = (n << 1) as usize;
out[0] = DEC_DIGITS_LUT[d1];
out[1] = DEC_DIGITS_LUT[d1 + 1];
2
} else {
out[0] = b'0' + n;
1
}
}
#[cfg(any(feature = "std", not(no_core_net)))]
#[test]
fn test_format_u8() {
let mut i = 0u8;
loop {
let mut buf = [0u8; 3];
let written = format_u8(i, &mut buf);
assert_eq!(i.to_string().as_bytes(), &buf[..written]);
match i.checked_add(1) {
Some(next) => i = next,
None => break,
}
}
}
#[cfg(any(feature = "std", not(no_core_net)))]
impl Serialize for net::Ipv4Addr {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
const MAX_LEN: usize = 15;
debug_assert_eq!(MAX_LEN, "101.102.103.104".len());
let mut buf = [b'.'; MAX_LEN];
let mut written = format_u8(self.octets()[0], &mut buf);
for oct in &self.octets()[1..] {
// Skip over delimiters that we initialized buf with
written += format_u8(*oct, &mut buf[written + 1..]) + 1;
}
// Safety: We've only written ASCII bytes to the buffer, so it is valid UTF-8
let buf = unsafe { str::from_utf8_unchecked(&buf[..written]) };
serializer.serialize_str(buf)
} else {
self.octets().serialize(serializer)
}
}
}
#[cfg(any(feature = "std", not(no_core_net)))]
impl Serialize for net::Ipv6Addr {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
const MAX_LEN: usize = 39;
debug_assert_eq!(MAX_LEN, "1001:1002:1003:1004:1005:1006:1007:1008".len());
serialize_display_bounded_length!(self, MAX_LEN, serializer)
} else {
self.octets().serialize(serializer)
}
}
}
#[cfg(any(feature = "std", not(no_core_net)))]
impl Serialize for net::SocketAddr {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
match *self {
net::SocketAddr::V4(ref addr) => addr.serialize(serializer),
net::SocketAddr::V6(ref addr) => addr.serialize(serializer),
}
} else {
match *self {
net::SocketAddr::V4(ref addr) => {
serializer.serialize_newtype_variant("SocketAddr", 0, "V4", addr)
}
net::SocketAddr::V6(ref addr) => {
serializer.serialize_newtype_variant("SocketAddr", 1, "V6", addr)
}
}
}
}
}
#[cfg(any(feature = "std", not(no_core_net)))]
impl Serialize for net::SocketAddrV4 {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
const MAX_LEN: usize = 21;
debug_assert_eq!(MAX_LEN, "101.102.103.104:65000".len());
serialize_display_bounded_length!(self, MAX_LEN, serializer)
} else {
(self.ip(), self.port()).serialize(serializer)
}
}
}
#[cfg(any(feature = "std", not(no_core_net)))]
impl Serialize for net::SocketAddrV6 {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
const MAX_LEN: usize = 58;
debug_assert_eq!(
MAX_LEN,
"[1001:1002:1003:1004:1005:1006:1007:1008%4294967295]:65000".len()
);
serialize_display_bounded_length!(self, MAX_LEN, serializer)
} else {
(self.ip(), self.port()).serialize(serializer)
}
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
impl Serialize for Path {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self.to_str() {
Some(s) => s.serialize(serializer),
None => Err(Error::custom("path contains invalid UTF-8 characters")),
}
}
}
#[cfg(feature = "std")]
#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
impl Serialize for PathBuf {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.as_path().serialize(serializer)
}
}
#[cfg(all(feature = "std", any(unix, windows)))]
#[cfg_attr(docsrs, doc(cfg(all(feature = "std", any(unix, windows)))))]
impl Serialize for OsStr {
#[cfg(unix)]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use std::os::unix::ffi::OsStrExt;
serializer.serialize_newtype_variant("OsString", 0, "Unix", self.as_bytes())
}
#[cfg(windows)]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use std::os::windows::ffi::OsStrExt;
let val = self.encode_wide().collect::<Vec<_>>();
serializer.serialize_newtype_variant("OsString", 1, "Windows", &val)
}
}
#[cfg(all(feature = "std", any(unix, windows)))]
#[cfg_attr(docsrs, doc(cfg(all(feature = "std", any(unix, windows)))))]
impl Serialize for OsString {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.as_os_str().serialize(serializer)
}
}
////////////////////////////////////////////////////////////////////////////////
impl<T> Serialize for Wrapping<T>
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.0.serialize(serializer)
}
}
#[cfg(not(no_core_num_saturating))]
impl<T> Serialize for Saturating<T>
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.0.serialize(serializer)
}
}
impl<T> Serialize for Reverse<T>
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.0.serialize(serializer)
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(all(feature = "std", not(no_std_atomic)))]
macro_rules! atomic_impl {
($($ty:ident $size:expr)*) => {
$(
#[cfg(any(no_target_has_atomic, target_has_atomic = $size))]
#[cfg_attr(docsrs, doc(cfg(all(feature = "std", target_has_atomic = $size))))]
impl Serialize for $ty {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
// Matches the atomic ordering used in libcore for the Debug impl
self.load(Ordering::Relaxed).serialize(serializer)
}
}
)*
}
}
#[cfg(all(feature = "std", not(no_std_atomic)))]
atomic_impl! {
AtomicBool "8"
AtomicI8 "8"
AtomicI16 "16"
AtomicI32 "32"
AtomicIsize "ptr"
AtomicU8 "8"
AtomicU16 "16"
AtomicU32 "32"
AtomicUsize "ptr"
}
#[cfg(all(feature = "std", not(no_std_atomic64)))]
atomic_impl! {
AtomicI64 "64"
AtomicU64 "64"
}
