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-rw-r--r--third_party/rust/serde/src/ser/impls.rs1077
1 files changed, 1077 insertions, 0 deletions
diff --git a/third_party/rust/serde/src/ser/impls.rs b/third_party/rust/serde/src/ser/impls.rs
new file mode 100644
index 0000000000..8c70634af0
--- /dev/null
+++ b/third_party/rust/serde/src/ser/impls.rs
@@ -0,0 +1,1077 @@
+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(doc_cfg, 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(doc_cfg, 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(doc_cfg, 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: ?Sized> Serialize for PhantomData<T> {
+ #[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(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
+ BinaryHeap<T: Ord>
+}
+
+seq_impl! {
+ #[cfg(any(feature = "std", feature = "alloc"))]
+ #[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
+ BTreeSet<T: Ord>
+}
+
+seq_impl! {
+ #[cfg(feature = "std")]
+ #[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
+ HashSet<T: Eq + Hash, H: BuildHasher>
+}
+
+seq_impl! {
+ #[cfg(any(feature = "std", feature = "alloc"))]
+ #[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
+ LinkedList<T>
+}
+
+seq_impl! {
+ #[cfg(any(feature = "std", feature = "alloc"))]
+ #[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
+ Vec<T>
+}
+
+seq_impl! {
+ #[cfg(any(feature = "std", feature = "alloc"))]
+ #[cfg_attr(doc_cfg, 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(doc_cfg, 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)+))+) => {
+ $(
+ impl<$($name),+> Serialize for ($($name,)+)
+ where
+ $($name: Serialize,)+
+ {
+ #[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()
+ }
+ }
+ )+
+ }
+}
+
+tuple_impls! {
+ 1 => (0 T0)
+ 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(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
+ BTreeMap<K: Ord, V>
+}
+
+map_impl! {
+ #[cfg(feature = "std")]
+ #[cfg_attr(doc_cfg, 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: ?Sized> Serialize for &'a T where T: Serialize
+}
+
+deref_impl! {
+ <'a, T: ?Sized> Serialize for &'a mut T where T: Serialize
+}
+
+deref_impl! {
+ #[cfg(any(feature = "std", feature = "alloc"))]
+ #[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
+ <T: ?Sized> Serialize for Box<T> where T: 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(doc_cfg, doc(cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))))]
+ <T: ?Sized> Serialize for Rc<T> where T: 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(doc_cfg, doc(cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))))]
+ <T: ?Sized> Serialize for Arc<T> where T: Serialize
+}
+
+deref_impl! {
+ #[cfg(any(feature = "std", feature = "alloc"))]
+ #[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
+ <'a, T: ?Sized> Serialize for Cow<'a, T> where T: 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(
+ doc_cfg,
+ doc(cfg(all(feature = "rc", any(feature = "std", feature = "alloc"))))
+)]
+impl<T: ?Sized> Serialize for RcWeak<T>
+where
+ T: 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(
+ doc_cfg,
+ doc(cfg(all(feature = "rc", any(feature = "std", feature = "alloc"))))
+)]
+impl<T: ?Sized> Serialize for ArcWeak<T>
+where
+ T: 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: ?Sized> Serialize for RefCell<T>
+where
+ T: 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(doc_cfg, doc(cfg(feature = "std")))]
+impl<T: ?Sized> Serialize for Mutex<T>
+where
+ T: 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(doc_cfg, doc(cfg(feature = "std")))]
+impl<T: ?Sized> Serialize for RwLock<T>
+where
+ T: 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(doc_cfg, 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(feature = "std")]
+macro_rules! serialize_display_bounded_length {
+ ($value:expr, $max:expr, $serializer:expr) => {{
+ let mut buffer = [0u8; $max];
+ let remaining_len = {
+ let mut remaining = &mut buffer[..];
+ write!(remaining, "{}", $value).unwrap();
+ remaining.len()
+ };
+ let written_len = buffer.len() - remaining_len;
+ let written = &buffer[..written_len];
+
+ // write! only provides fmt::Formatter to Display implementations, which
+ // has methods write_str and write_char but no method to write arbitrary
+ // bytes. Therefore `written` must be valid UTF-8.
+ let written_str = str::from_utf8(written).expect("must be valid UTF-8");
+ $serializer.serialize_str(written_str)
+ }};
+}
+
+#[cfg(feature = "std")]
+#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
+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(feature = "std")]
+const DEC_DIGITS_LUT: &[u8] = b"\
+ 0001020304050607080910111213141516171819\
+ 2021222324252627282930313233343536373839\
+ 4041424344454647484950515253545556575859\
+ 6061626364656667686970717273747576777879\
+ 8081828384858687888990919293949596979899";
+
+#[cfg(feature = "std")]
+#[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(feature = "std")]
+#[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(feature = "std")]
+#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
+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(feature = "std")]
+#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
+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(feature = "std")]
+#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
+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(feature = "std")]
+#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
+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(feature = "std")]
+#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
+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(doc_cfg, 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(doc_cfg, 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(doc_cfg, 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(doc_cfg, 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)
+ }
+}
+
+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(doc_cfg, 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"
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-19 05:16:51 +0000