From a990de90fe41456a23e58bd087d2f107d321f3a1 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Fri, 19 Jul 2024 16:37:58 +0400
Subject: Deleted vendor folder

---
 vendor/serde/src/de/value.rs | 1720 ------------------------------------------
 1 file changed, 1720 deletions(-)
 delete mode 100644 vendor/serde/src/de/value.rs

(limited to 'vendor/serde/src/de/value.rs')

diff --git a/vendor/serde/src/de/value.rs b/vendor/serde/src/de/value.rs
deleted file mode 100644
index b229eba..0000000
--- a/vendor/serde/src/de/value.rs
+++ /dev/null
@@ -1,1720 +0,0 @@
-//! Building blocks for deserializing basic values using the `IntoDeserializer`
-//! trait.
-//!
-//! ```edition2021
-//! use serde::de::{value, Deserialize, IntoDeserializer};
-//! use serde_derive::Deserialize;
-//! use std::str::FromStr;
-//!
-//! #[derive(Deserialize)]
-//! enum Setting {
-//!     On,
-//!     Off,
-//! }
-//!
-//! impl FromStr for Setting {
-//!     type Err = value::Error;
-//!
-//!     fn from_str(s: &str) -> Result<Self, Self::Err> {
-//!         Self::deserialize(s.into_deserializer())
-//!     }
-//! }
-//! ```
-
-use crate::lib::*;
-
-use self::private::{First, Second};
-use crate::de::{self, size_hint, Deserializer, Expected, IntoDeserializer, SeqAccess, Visitor};
-use crate::ser;
-
-////////////////////////////////////////////////////////////////////////////////
-
-// For structs that contain a PhantomData. We do not want the trait
-// bound `E: Clone` inferred by derive(Clone).
-macro_rules! impl_copy_clone {
-    ($ty:ident $(<$lifetime:tt>)*) => {
-        impl<$($lifetime,)* E> Copy for $ty<$($lifetime,)* E> {}
-
-        impl<$($lifetime,)* E> Clone for $ty<$($lifetime,)* E> {
-            fn clone(&self) -> Self {
-                *self
-            }
-        }
-    };
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A minimal representation of all possible errors that can occur using the
-/// `IntoDeserializer` trait.
-#[derive(Clone, PartialEq)]
-pub struct Error {
-    err: ErrorImpl,
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-type ErrorImpl = Box<str>;
-#[cfg(not(any(feature = "std", feature = "alloc")))]
-type ErrorImpl = ();
-
-impl de::Error for Error {
-    #[cfg(any(feature = "std", feature = "alloc"))]
-    #[cold]
-    fn custom<T>(msg: T) -> Self
-    where
-        T: Display,
-    {
-        Error {
-            err: msg.to_string().into_boxed_str(),
-        }
-    }
-
-    #[cfg(not(any(feature = "std", feature = "alloc")))]
-    #[cold]
-    fn custom<T>(msg: T) -> Self
-    where
-        T: Display,
-    {
-        let _ = msg;
-        Error { err: () }
-    }
-}
-
-impl ser::Error for Error {
-    #[cold]
-    fn custom<T>(msg: T) -> Self
-    where
-        T: Display,
-    {
-        de::Error::custom(msg)
-    }
-}
-
-impl Display for Error {
-    #[cfg(any(feature = "std", feature = "alloc"))]
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter.write_str(&self.err)
-    }
-
-    #[cfg(not(any(feature = "std", feature = "alloc")))]
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter.write_str("Serde deserialization error")
-    }
-}
-
-impl Debug for Error {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        let mut debug = formatter.debug_tuple("Error");
-        #[cfg(any(feature = "std", feature = "alloc"))]
-        debug.field(&self.err);
-        debug.finish()
-    }
-}
-
-#[cfg(feature = "std")]
-#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
-impl error::Error for Error {
-    fn description(&self) -> &str {
-        &self.err
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-impl<'de, E> IntoDeserializer<'de, E> for ()
-where
-    E: de::Error,
-{
-    type Deserializer = UnitDeserializer<E>;
-
-    fn into_deserializer(self) -> UnitDeserializer<E> {
-        UnitDeserializer::new()
-    }
-}
-
-/// A deserializer holding a `()`.
-pub struct UnitDeserializer<E> {
-    marker: PhantomData<E>,
-}
-
-impl_copy_clone!(UnitDeserializer);
-
-impl<E> UnitDeserializer<E> {
-    #[allow(missing_docs)]
-    pub fn new() -> Self {
-        UnitDeserializer {
-            marker: PhantomData,
-        }
-    }
-}
-
-impl<'de, E> de::Deserializer<'de> for UnitDeserializer<E>
-where
-    E: de::Error,
-{
-    type Error = E;
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf unit unit_struct newtype_struct seq tuple tuple_struct
-        map struct enum identifier ignored_any
-    }
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_unit()
-    }
-
-    fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_none()
-    }
-}
-
-impl<E> Debug for UnitDeserializer<E> {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter.debug_struct("UnitDeserializer").finish()
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer that cannot be instantiated.
-#[cfg(feature = "unstable")]
-#[cfg_attr(doc_cfg, doc(cfg(feature = "unstable")))]
-pub struct NeverDeserializer<E> {
-    never: !,
-    marker: PhantomData<E>,
-}
-
-#[cfg(feature = "unstable")]
-#[cfg_attr(doc_cfg, doc(cfg(feature = "unstable")))]
-impl<'de, E> IntoDeserializer<'de, E> for !
-where
-    E: de::Error,
-{
-    type Deserializer = NeverDeserializer<E>;
-
-    fn into_deserializer(self) -> Self::Deserializer {
-        self
-    }
-}
-
-#[cfg(feature = "unstable")]
-impl<'de, E> de::Deserializer<'de> for NeverDeserializer<E>
-where
-    E: de::Error,
-{
-    type Error = E;
-
-    fn deserialize_any<V>(self, _visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        self.never
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct enum identifier ignored_any
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-macro_rules! primitive_deserializer {
-    ($ty:ty, $doc:tt, $name:ident, $method:ident $($cast:tt)*) => {
-        #[doc = "A deserializer holding"]
-        #[doc = $doc]
-        pub struct $name<E> {
-            value: $ty,
-            marker: PhantomData<E>
-        }
-
-        impl_copy_clone!($name);
-
-        impl<'de, E> IntoDeserializer<'de, E> for $ty
-        where
-            E: de::Error,
-        {
-            type Deserializer = $name<E>;
-
-            fn into_deserializer(self) -> $name<E> {
-                $name::new(self)
-            }
-        }
-
-        impl<E> $name<E> {
-            #[allow(missing_docs)]
-            pub fn new(value: $ty) -> Self {
-                $name {
-                    value,
-                    marker: PhantomData,
-                }
-            }
-        }
-
-        impl<'de, E> de::Deserializer<'de> for $name<E>
-        where
-            E: de::Error,
-        {
-            type Error = E;
-
-            forward_to_deserialize_any! {
-                bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str
-                string bytes byte_buf option unit unit_struct newtype_struct seq
-                tuple tuple_struct map struct enum identifier ignored_any
-            }
-
-            fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-            where
-                V: de::Visitor<'de>,
-            {
-                visitor.$method(self.value $($cast)*)
-            }
-        }
-
-        impl<E> Debug for $name<E> {
-            fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-                formatter
-                    .debug_struct(stringify!($name))
-                    .field("value", &self.value)
-                    .finish()
-            }
-        }
-    }
-}
-
-primitive_deserializer!(bool, "a `bool`.", BoolDeserializer, visit_bool);
-primitive_deserializer!(i8, "an `i8`.", I8Deserializer, visit_i8);
-primitive_deserializer!(i16, "an `i16`.", I16Deserializer, visit_i16);
-primitive_deserializer!(i32, "an `i32`.", I32Deserializer, visit_i32);
-primitive_deserializer!(i64, "an `i64`.", I64Deserializer, visit_i64);
-primitive_deserializer!(i128, "an `i128`.", I128Deserializer, visit_i128);
-primitive_deserializer!(isize, "an `isize`.", IsizeDeserializer, visit_i64 as i64);
-primitive_deserializer!(u8, "a `u8`.", U8Deserializer, visit_u8);
-primitive_deserializer!(u16, "a `u16`.", U16Deserializer, visit_u16);
-primitive_deserializer!(u64, "a `u64`.", U64Deserializer, visit_u64);
-primitive_deserializer!(u128, "a `u128`.", U128Deserializer, visit_u128);
-primitive_deserializer!(usize, "a `usize`.", UsizeDeserializer, visit_u64 as u64);
-primitive_deserializer!(f32, "an `f32`.", F32Deserializer, visit_f32);
-primitive_deserializer!(f64, "an `f64`.", F64Deserializer, visit_f64);
-primitive_deserializer!(char, "a `char`.", CharDeserializer, visit_char);
-
-/// A deserializer holding a `u32`.
-pub struct U32Deserializer<E> {
-    value: u32,
-    marker: PhantomData<E>,
-}
-
-impl_copy_clone!(U32Deserializer);
-
-impl<'de, E> IntoDeserializer<'de, E> for u32
-where
-    E: de::Error,
-{
-    type Deserializer = U32Deserializer<E>;
-
-    fn into_deserializer(self) -> U32Deserializer<E> {
-        U32Deserializer::new(self)
-    }
-}
-
-impl<E> U32Deserializer<E> {
-    #[allow(missing_docs)]
-    pub fn new(value: u32) -> Self {
-        U32Deserializer {
-            value,
-            marker: PhantomData,
-        }
-    }
-}
-
-impl<'de, E> de::Deserializer<'de> for U32Deserializer<E>
-where
-    E: de::Error,
-{
-    type Error = E;
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct identifier ignored_any
-    }
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_u32(self.value)
-    }
-
-    fn deserialize_enum<V>(
-        self,
-        name: &str,
-        variants: &'static [&'static str],
-        visitor: V,
-    ) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        let _ = name;
-        let _ = variants;
-        visitor.visit_enum(self)
-    }
-}
-
-impl<'de, E> de::EnumAccess<'de> for U32Deserializer<E>
-where
-    E: de::Error,
-{
-    type Error = E;
-    type Variant = private::UnitOnly<E>;
-
-    fn variant_seed<T>(self, seed: T) -> Result<(T::Value, Self::Variant), Self::Error>
-    where
-        T: de::DeserializeSeed<'de>,
-    {
-        seed.deserialize(self).map(private::unit_only)
-    }
-}
-
-impl<E> Debug for U32Deserializer<E> {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter
-            .debug_struct("U32Deserializer")
-            .field("value", &self.value)
-            .finish()
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer holding a `&str`.
-pub struct StrDeserializer<'a, E> {
-    value: &'a str,
-    marker: PhantomData<E>,
-}
-
-impl_copy_clone!(StrDeserializer<'de>);
-
-impl<'de, 'a, E> IntoDeserializer<'de, E> for &'a str
-where
-    E: de::Error,
-{
-    type Deserializer = StrDeserializer<'a, E>;
-
-    fn into_deserializer(self) -> StrDeserializer<'a, E> {
-        StrDeserializer::new(self)
-    }
-}
-
-impl<'a, E> StrDeserializer<'a, E> {
-    #[allow(missing_docs)]
-    pub fn new(value: &'a str) -> Self {
-        StrDeserializer {
-            value,
-            marker: PhantomData,
-        }
-    }
-}
-
-impl<'de, 'a, E> de::Deserializer<'de> for StrDeserializer<'a, E>
-where
-    E: de::Error,
-{
-    type Error = E;
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_str(self.value)
-    }
-
-    fn deserialize_enum<V>(
-        self,
-        name: &str,
-        variants: &'static [&'static str],
-        visitor: V,
-    ) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        let _ = name;
-        let _ = variants;
-        visitor.visit_enum(self)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct identifier ignored_any
-    }
-}
-
-impl<'de, 'a, E> de::EnumAccess<'de> for StrDeserializer<'a, E>
-where
-    E: de::Error,
-{
-    type Error = E;
-    type Variant = private::UnitOnly<E>;
-
-    fn variant_seed<T>(self, seed: T) -> Result<(T::Value, Self::Variant), Self::Error>
-    where
-        T: de::DeserializeSeed<'de>,
-    {
-        seed.deserialize(self).map(private::unit_only)
-    }
-}
-
-impl<'a, E> Debug for StrDeserializer<'a, E> {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter
-            .debug_struct("StrDeserializer")
-            .field("value", &self.value)
-            .finish()
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer holding a `&str` with a lifetime tied to another
-/// deserializer.
-pub struct BorrowedStrDeserializer<'de, E> {
-    value: &'de str,
-    marker: PhantomData<E>,
-}
-
-impl_copy_clone!(BorrowedStrDeserializer<'de>);
-
-impl<'de, E> BorrowedStrDeserializer<'de, E> {
-    /// Create a new borrowed deserializer from the given string.
-    pub fn new(value: &'de str) -> BorrowedStrDeserializer<'de, E> {
-        BorrowedStrDeserializer {
-            value,
-            marker: PhantomData,
-        }
-    }
-}
-
-impl<'de, E> de::Deserializer<'de> for BorrowedStrDeserializer<'de, E>
-where
-    E: de::Error,
-{
-    type Error = E;
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_borrowed_str(self.value)
-    }
-
-    fn deserialize_enum<V>(
-        self,
-        name: &str,
-        variants: &'static [&'static str],
-        visitor: V,
-    ) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        let _ = name;
-        let _ = variants;
-        visitor.visit_enum(self)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct identifier ignored_any
-    }
-}
-
-impl<'de, E> de::EnumAccess<'de> for BorrowedStrDeserializer<'de, E>
-where
-    E: de::Error,
-{
-    type Error = E;
-    type Variant = private::UnitOnly<E>;
-
-    fn variant_seed<T>(self, seed: T) -> Result<(T::Value, Self::Variant), Self::Error>
-    where
-        T: de::DeserializeSeed<'de>,
-    {
-        seed.deserialize(self).map(private::unit_only)
-    }
-}
-
-impl<'de, E> Debug for BorrowedStrDeserializer<'de, E> {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter
-            .debug_struct("BorrowedStrDeserializer")
-            .field("value", &self.value)
-            .finish()
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer holding a `String`.
-#[cfg(any(feature = "std", feature = "alloc"))]
-#[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
-pub struct StringDeserializer<E> {
-    value: String,
-    marker: PhantomData<E>,
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-impl<E> Clone for StringDeserializer<E> {
-    fn clone(&self) -> Self {
-        StringDeserializer {
-            value: self.value.clone(),
-            marker: PhantomData,
-        }
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-#[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
-impl<'de, E> IntoDeserializer<'de, E> for String
-where
-    E: de::Error,
-{
-    type Deserializer = StringDeserializer<E>;
-
-    fn into_deserializer(self) -> StringDeserializer<E> {
-        StringDeserializer::new(self)
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-impl<E> StringDeserializer<E> {
-    #[allow(missing_docs)]
-    pub fn new(value: String) -> Self {
-        StringDeserializer {
-            value,
-            marker: PhantomData,
-        }
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-impl<'de, E> de::Deserializer<'de> for StringDeserializer<E>
-where
-    E: de::Error,
-{
-    type Error = E;
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_string(self.value)
-    }
-
-    fn deserialize_enum<V>(
-        self,
-        name: &str,
-        variants: &'static [&'static str],
-        visitor: V,
-    ) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        let _ = name;
-        let _ = variants;
-        visitor.visit_enum(self)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct identifier ignored_any
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-impl<'de, E> de::EnumAccess<'de> for StringDeserializer<E>
-where
-    E: de::Error,
-{
-    type Error = E;
-    type Variant = private::UnitOnly<E>;
-
-    fn variant_seed<T>(self, seed: T) -> Result<(T::Value, Self::Variant), Self::Error>
-    where
-        T: de::DeserializeSeed<'de>,
-    {
-        seed.deserialize(self).map(private::unit_only)
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-impl<E> Debug for StringDeserializer<E> {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter
-            .debug_struct("StringDeserializer")
-            .field("value", &self.value)
-            .finish()
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer holding a `Cow<str>`.
-#[cfg(any(feature = "std", feature = "alloc"))]
-#[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
-pub struct CowStrDeserializer<'a, E> {
-    value: Cow<'a, str>,
-    marker: PhantomData<E>,
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-impl<'a, E> Clone for CowStrDeserializer<'a, E> {
-    fn clone(&self) -> Self {
-        CowStrDeserializer {
-            value: self.value.clone(),
-            marker: PhantomData,
-        }
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-#[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
-impl<'de, 'a, E> IntoDeserializer<'de, E> for Cow<'a, str>
-where
-    E: de::Error,
-{
-    type Deserializer = CowStrDeserializer<'a, E>;
-
-    fn into_deserializer(self) -> CowStrDeserializer<'a, E> {
-        CowStrDeserializer::new(self)
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-impl<'a, E> CowStrDeserializer<'a, E> {
-    #[allow(missing_docs)]
-    pub fn new(value: Cow<'a, str>) -> Self {
-        CowStrDeserializer {
-            value,
-            marker: PhantomData,
-        }
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-impl<'de, 'a, E> de::Deserializer<'de> for CowStrDeserializer<'a, E>
-where
-    E: de::Error,
-{
-    type Error = E;
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        match self.value {
-            Cow::Borrowed(string) => visitor.visit_str(string),
-            Cow::Owned(string) => visitor.visit_string(string),
-        }
-    }
-
-    fn deserialize_enum<V>(
-        self,
-        name: &str,
-        variants: &'static [&'static str],
-        visitor: V,
-    ) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        let _ = name;
-        let _ = variants;
-        visitor.visit_enum(self)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct identifier ignored_any
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-impl<'de, 'a, E> de::EnumAccess<'de> for CowStrDeserializer<'a, E>
-where
-    E: de::Error,
-{
-    type Error = E;
-    type Variant = private::UnitOnly<E>;
-
-    fn variant_seed<T>(self, seed: T) -> Result<(T::Value, Self::Variant), Self::Error>
-    where
-        T: de::DeserializeSeed<'de>,
-    {
-        seed.deserialize(self).map(private::unit_only)
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-impl<'a, E> Debug for CowStrDeserializer<'a, E> {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter
-            .debug_struct("CowStrDeserializer")
-            .field("value", &self.value)
-            .finish()
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer holding a `&[u8]`. Always calls [`Visitor::visit_bytes`].
-pub struct BytesDeserializer<'a, E> {
-    value: &'a [u8],
-    marker: PhantomData<E>,
-}
-
-impl<'a, E> BytesDeserializer<'a, E> {
-    /// Create a new deserializer from the given bytes.
-    pub fn new(value: &'a [u8]) -> Self {
-        BytesDeserializer {
-            value,
-            marker: PhantomData,
-        }
-    }
-}
-
-impl_copy_clone!(BytesDeserializer<'a>);
-
-impl<'de, 'a, E> IntoDeserializer<'de, E> for &'a [u8]
-where
-    E: de::Error,
-{
-    type Deserializer = BytesDeserializer<'a, E>;
-
-    fn into_deserializer(self) -> BytesDeserializer<'a, E> {
-        BytesDeserializer::new(self)
-    }
-}
-
-impl<'de, 'a, E> Deserializer<'de> for BytesDeserializer<'a, E>
-where
-    E: de::Error,
-{
-    type Error = E;
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: Visitor<'de>,
-    {
-        visitor.visit_bytes(self.value)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct enum identifier ignored_any
-    }
-}
-
-impl<'a, E> Debug for BytesDeserializer<'a, E> {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter
-            .debug_struct("BytesDeserializer")
-            .field("value", &self.value)
-            .finish()
-    }
-}
-
-/// A deserializer holding a `&[u8]` with a lifetime tied to another
-/// deserializer. Always calls [`Visitor::visit_borrowed_bytes`].
-pub struct BorrowedBytesDeserializer<'de, E> {
-    value: &'de [u8],
-    marker: PhantomData<E>,
-}
-
-impl<'de, E> BorrowedBytesDeserializer<'de, E> {
-    /// Create a new borrowed deserializer from the given borrowed bytes.
-    pub fn new(value: &'de [u8]) -> Self {
-        BorrowedBytesDeserializer {
-            value,
-            marker: PhantomData,
-        }
-    }
-}
-
-impl_copy_clone!(BorrowedBytesDeserializer<'de>);
-
-impl<'de, E> Deserializer<'de> for BorrowedBytesDeserializer<'de, E>
-where
-    E: de::Error,
-{
-    type Error = E;
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: Visitor<'de>,
-    {
-        visitor.visit_borrowed_bytes(self.value)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct enum identifier ignored_any
-    }
-}
-
-impl<'de, E> Debug for BorrowedBytesDeserializer<'de, E> {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter
-            .debug_struct("BorrowedBytesDeserializer")
-            .field("value", &self.value)
-            .finish()
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer that iterates over a sequence.
-#[derive(Clone)]
-pub struct SeqDeserializer<I, E> {
-    iter: iter::Fuse<I>,
-    count: usize,
-    marker: PhantomData<E>,
-}
-
-impl<I, E> SeqDeserializer<I, E>
-where
-    I: Iterator,
-{
-    /// Construct a new `SeqDeserializer<I, E>`.
-    pub fn new(iter: I) -> Self {
-        SeqDeserializer {
-            iter: iter.fuse(),
-            count: 0,
-            marker: PhantomData,
-        }
-    }
-}
-
-impl<I, E> SeqDeserializer<I, E>
-where
-    I: Iterator,
-    E: de::Error,
-{
-    /// Check for remaining elements after passing a `SeqDeserializer` to
-    /// `Visitor::visit_seq`.
-    pub fn end(self) -> Result<(), E> {
-        let remaining = self.iter.count();
-        if remaining == 0 {
-            Ok(())
-        } else {
-            // First argument is the number of elements in the data, second
-            // argument is the number of elements expected by the Deserialize.
-            Err(de::Error::invalid_length(
-                self.count + remaining,
-                &ExpectedInSeq(self.count),
-            ))
-        }
-    }
-}
-
-impl<'de, I, T, E> de::Deserializer<'de> for SeqDeserializer<I, E>
-where
-    I: Iterator<Item = T>,
-    T: IntoDeserializer<'de, E>,
-    E: de::Error,
-{
-    type Error = E;
-
-    fn deserialize_any<V>(mut self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        let v = tri!(visitor.visit_seq(&mut self));
-        tri!(self.end());
-        Ok(v)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct enum identifier ignored_any
-    }
-}
-
-impl<'de, I, T, E> de::SeqAccess<'de> for SeqDeserializer<I, E>
-where
-    I: Iterator<Item = T>,
-    T: IntoDeserializer<'de, E>,
-    E: de::Error,
-{
-    type Error = E;
-
-    fn next_element_seed<V>(&mut self, seed: V) -> Result<Option<V::Value>, Self::Error>
-    where
-        V: de::DeserializeSeed<'de>,
-    {
-        match self.iter.next() {
-            Some(value) => {
-                self.count += 1;
-                seed.deserialize(value.into_deserializer()).map(Some)
-            }
-            None => Ok(None),
-        }
-    }
-
-    fn size_hint(&self) -> Option<usize> {
-        size_hint::from_bounds(&self.iter)
-    }
-}
-
-struct ExpectedInSeq(usize);
-
-impl Expected for ExpectedInSeq {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        if self.0 == 1 {
-            write!(formatter, "1 element in sequence")
-        } else {
-            write!(formatter, "{} elements in sequence", self.0)
-        }
-    }
-}
-
-impl<I, E> Debug for SeqDeserializer<I, E>
-where
-    I: Debug,
-{
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter
-            .debug_struct("SeqDeserializer")
-            .field("iter", &self.iter)
-            .field("count", &self.count)
-            .finish()
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-#[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
-impl<'de, T, E> IntoDeserializer<'de, E> for Vec<T>
-where
-    T: IntoDeserializer<'de, E>,
-    E: de::Error,
-{
-    type Deserializer = SeqDeserializer<<Self as IntoIterator>::IntoIter, E>;
-
-    fn into_deserializer(self) -> Self::Deserializer {
-        SeqDeserializer::new(self.into_iter())
-    }
-}
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-#[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
-impl<'de, T, E> IntoDeserializer<'de, E> for BTreeSet<T>
-where
-    T: IntoDeserializer<'de, E> + Eq + Ord,
-    E: de::Error,
-{
-    type Deserializer = SeqDeserializer<<Self as IntoIterator>::IntoIter, E>;
-
-    fn into_deserializer(self) -> Self::Deserializer {
-        SeqDeserializer::new(self.into_iter())
-    }
-}
-
-#[cfg(feature = "std")]
-#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
-impl<'de, T, S, E> IntoDeserializer<'de, E> for HashSet<T, S>
-where
-    T: IntoDeserializer<'de, E> + Eq + Hash,
-    S: BuildHasher,
-    E: de::Error,
-{
-    type Deserializer = SeqDeserializer<<Self as IntoIterator>::IntoIter, E>;
-
-    fn into_deserializer(self) -> Self::Deserializer {
-        SeqDeserializer::new(self.into_iter())
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer holding a `SeqAccess`.
-#[derive(Clone, Debug)]
-pub struct SeqAccessDeserializer<A> {
-    seq: A,
-}
-
-impl<A> SeqAccessDeserializer<A> {
-    /// Construct a new `SeqAccessDeserializer<A>`.
-    pub fn new(seq: A) -> Self {
-        SeqAccessDeserializer { seq }
-    }
-}
-
-impl<'de, A> de::Deserializer<'de> for SeqAccessDeserializer<A>
-where
-    A: de::SeqAccess<'de>,
-{
-    type Error = A::Error;
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_seq(self.seq)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct enum identifier ignored_any
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer that iterates over a map.
-pub struct MapDeserializer<'de, I, E>
-where
-    I: Iterator,
-    I::Item: private::Pair,
-{
-    iter: iter::Fuse<I>,
-    value: Option<Second<I::Item>>,
-    count: usize,
-    lifetime: PhantomData<&'de ()>,
-    error: PhantomData<E>,
-}
-
-impl<'de, I, E> MapDeserializer<'de, I, E>
-where
-    I: Iterator,
-    I::Item: private::Pair,
-{
-    /// Construct a new `MapDeserializer<I, E>`.
-    pub fn new(iter: I) -> Self {
-        MapDeserializer {
-            iter: iter.fuse(),
-            value: None,
-            count: 0,
-            lifetime: PhantomData,
-            error: PhantomData,
-        }
-    }
-}
-
-impl<'de, I, E> MapDeserializer<'de, I, E>
-where
-    I: Iterator,
-    I::Item: private::Pair,
-    E: de::Error,
-{
-    /// Check for remaining elements after passing a `MapDeserializer` to
-    /// `Visitor::visit_map`.
-    pub fn end(self) -> Result<(), E> {
-        let remaining = self.iter.count();
-        if remaining == 0 {
-            Ok(())
-        } else {
-            // First argument is the number of elements in the data, second
-            // argument is the number of elements expected by the Deserialize.
-            Err(de::Error::invalid_length(
-                self.count + remaining,
-                &ExpectedInMap(self.count),
-            ))
-        }
-    }
-}
-
-impl<'de, I, E> MapDeserializer<'de, I, E>
-where
-    I: Iterator,
-    I::Item: private::Pair,
-{
-    fn next_pair(&mut self) -> Option<(First<I::Item>, Second<I::Item>)> {
-        match self.iter.next() {
-            Some(kv) => {
-                self.count += 1;
-                Some(private::Pair::split(kv))
-            }
-            None => None,
-        }
-    }
-}
-
-impl<'de, I, E> de::Deserializer<'de> for MapDeserializer<'de, I, E>
-where
-    I: Iterator,
-    I::Item: private::Pair,
-    First<I::Item>: IntoDeserializer<'de, E>,
-    Second<I::Item>: IntoDeserializer<'de, E>,
-    E: de::Error,
-{
-    type Error = E;
-
-    fn deserialize_any<V>(mut self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        let value = tri!(visitor.visit_map(&mut self));
-        tri!(self.end());
-        Ok(value)
-    }
-
-    fn deserialize_seq<V>(mut self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        let value = tri!(visitor.visit_seq(&mut self));
-        tri!(self.end());
-        Ok(value)
-    }
-
-    fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        let _ = len;
-        self.deserialize_seq(visitor)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct tuple_struct map
-        struct enum identifier ignored_any
-    }
-}
-
-impl<'de, I, E> de::MapAccess<'de> for MapDeserializer<'de, I, E>
-where
-    I: Iterator,
-    I::Item: private::Pair,
-    First<I::Item>: IntoDeserializer<'de, E>,
-    Second<I::Item>: IntoDeserializer<'de, E>,
-    E: de::Error,
-{
-    type Error = E;
-
-    fn next_key_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>, Self::Error>
-    where
-        T: de::DeserializeSeed<'de>,
-    {
-        match self.next_pair() {
-            Some((key, value)) => {
-                self.value = Some(value);
-                seed.deserialize(key.into_deserializer()).map(Some)
-            }
-            None => Ok(None),
-        }
-    }
-
-    fn next_value_seed<T>(&mut self, seed: T) -> Result<T::Value, Self::Error>
-    where
-        T: de::DeserializeSeed<'de>,
-    {
-        let value = self.value.take();
-        // Panic because this indicates a bug in the program rather than an
-        // expected failure.
-        let value = value.expect("MapAccess::next_value called before next_key");
-        seed.deserialize(value.into_deserializer())
-    }
-
-    fn next_entry_seed<TK, TV>(
-        &mut self,
-        kseed: TK,
-        vseed: TV,
-    ) -> Result<Option<(TK::Value, TV::Value)>, Self::Error>
-    where
-        TK: de::DeserializeSeed<'de>,
-        TV: de::DeserializeSeed<'de>,
-    {
-        match self.next_pair() {
-            Some((key, value)) => {
-                let key = tri!(kseed.deserialize(key.into_deserializer()));
-                let value = tri!(vseed.deserialize(value.into_deserializer()));
-                Ok(Some((key, value)))
-            }
-            None => Ok(None),
-        }
-    }
-
-    fn size_hint(&self) -> Option<usize> {
-        size_hint::from_bounds(&self.iter)
-    }
-}
-
-impl<'de, I, E> de::SeqAccess<'de> for MapDeserializer<'de, I, E>
-where
-    I: Iterator,
-    I::Item: private::Pair,
-    First<I::Item>: IntoDeserializer<'de, E>,
-    Second<I::Item>: IntoDeserializer<'de, E>,
-    E: de::Error,
-{
-    type Error = E;
-
-    fn next_element_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>, Self::Error>
-    where
-        T: de::DeserializeSeed<'de>,
-    {
-        match self.next_pair() {
-            Some((k, v)) => {
-                let de = PairDeserializer(k, v, PhantomData);
-                seed.deserialize(de).map(Some)
-            }
-            None => Ok(None),
-        }
-    }
-
-    fn size_hint(&self) -> Option<usize> {
-        size_hint::from_bounds(&self.iter)
-    }
-}
-
-// Cannot #[derive(Clone)] because of the bound `Second<I::Item>: Clone`.
-impl<'de, I, E> Clone for MapDeserializer<'de, I, E>
-where
-    I: Iterator + Clone,
-    I::Item: private::Pair,
-    Second<I::Item>: Clone,
-{
-    fn clone(&self) -> Self {
-        MapDeserializer {
-            iter: self.iter.clone(),
-            value: self.value.clone(),
-            count: self.count,
-            lifetime: self.lifetime,
-            error: self.error,
-        }
-    }
-}
-
-impl<'de, I, E> Debug for MapDeserializer<'de, I, E>
-where
-    I: Iterator + Debug,
-    I::Item: private::Pair,
-    Second<I::Item>: Debug,
-{
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter
-            .debug_struct("MapDeserializer")
-            .field("iter", &self.iter)
-            .field("value", &self.value)
-            .field("count", &self.count)
-            .finish()
-    }
-}
-
-// Used in the `impl SeqAccess for MapDeserializer` to visit the map as a
-// sequence of pairs.
-struct PairDeserializer<A, B, E>(A, B, PhantomData<E>);
-
-impl<'de, A, B, E> de::Deserializer<'de> for PairDeserializer<A, B, E>
-where
-    A: IntoDeserializer<'de, E>,
-    B: IntoDeserializer<'de, E>,
-    E: de::Error,
-{
-    type Error = E;
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct tuple_struct map
-        struct enum identifier ignored_any
-    }
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        self.deserialize_seq(visitor)
-    }
-
-    fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        let mut pair_visitor = PairVisitor(Some(self.0), Some(self.1), PhantomData);
-        let pair = tri!(visitor.visit_seq(&mut pair_visitor));
-        if pair_visitor.1.is_none() {
-            Ok(pair)
-        } else {
-            let remaining = pair_visitor.size_hint().unwrap();
-            // First argument is the number of elements in the data, second
-            // argument is the number of elements expected by the Deserialize.
-            Err(de::Error::invalid_length(2, &ExpectedInSeq(2 - remaining)))
-        }
-    }
-
-    fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        if len == 2 {
-            self.deserialize_seq(visitor)
-        } else {
-            // First argument is the number of elements in the data, second
-            // argument is the number of elements expected by the Deserialize.
-            Err(de::Error::invalid_length(2, &ExpectedInSeq(len)))
-        }
-    }
-}
-
-struct PairVisitor<A, B, E>(Option<A>, Option<B>, PhantomData<E>);
-
-impl<'de, A, B, E> de::SeqAccess<'de> for PairVisitor<A, B, E>
-where
-    A: IntoDeserializer<'de, E>,
-    B: IntoDeserializer<'de, E>,
-    E: de::Error,
-{
-    type Error = E;
-
-    fn next_element_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>, Self::Error>
-    where
-        T: de::DeserializeSeed<'de>,
-    {
-        if let Some(k) = self.0.take() {
-            seed.deserialize(k.into_deserializer()).map(Some)
-        } else if let Some(v) = self.1.take() {
-            seed.deserialize(v.into_deserializer()).map(Some)
-        } else {
-            Ok(None)
-        }
-    }
-
-    fn size_hint(&self) -> Option<usize> {
-        if self.0.is_some() {
-            Some(2)
-        } else if self.1.is_some() {
-            Some(1)
-        } else {
-            Some(0)
-        }
-    }
-}
-
-struct ExpectedInMap(usize);
-
-impl Expected for ExpectedInMap {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        if self.0 == 1 {
-            write!(formatter, "1 element in map")
-        } else {
-            write!(formatter, "{} elements in map", self.0)
-        }
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-#[cfg(any(feature = "std", feature = "alloc"))]
-#[cfg_attr(doc_cfg, doc(cfg(any(feature = "std", feature = "alloc"))))]
-impl<'de, K, V, E> IntoDeserializer<'de, E> for BTreeMap<K, V>
-where
-    K: IntoDeserializer<'de, E> + Eq + Ord,
-    V: IntoDeserializer<'de, E>,
-    E: de::Error,
-{
-    type Deserializer = MapDeserializer<'de, <Self as IntoIterator>::IntoIter, E>;
-
-    fn into_deserializer(self) -> Self::Deserializer {
-        MapDeserializer::new(self.into_iter())
-    }
-}
-
-#[cfg(feature = "std")]
-#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
-impl<'de, K, V, S, E> IntoDeserializer<'de, E> for HashMap<K, V, S>
-where
-    K: IntoDeserializer<'de, E> + Eq + Hash,
-    V: IntoDeserializer<'de, E>,
-    S: BuildHasher,
-    E: de::Error,
-{
-    type Deserializer = MapDeserializer<'de, <Self as IntoIterator>::IntoIter, E>;
-
-    fn into_deserializer(self) -> Self::Deserializer {
-        MapDeserializer::new(self.into_iter())
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer holding a `MapAccess`.
-#[derive(Clone, Debug)]
-pub struct MapAccessDeserializer<A> {
-    map: A,
-}
-
-impl<A> MapAccessDeserializer<A> {
-    /// Construct a new `MapAccessDeserializer<A>`.
-    pub fn new(map: A) -> Self {
-        MapAccessDeserializer { map }
-    }
-}
-
-impl<'de, A> de::Deserializer<'de> for MapAccessDeserializer<A>
-where
-    A: de::MapAccess<'de>,
-{
-    type Error = A::Error;
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_map(self.map)
-    }
-
-    fn deserialize_enum<V>(
-        self,
-        _name: &str,
-        _variants: &'static [&'static str],
-        visitor: V,
-    ) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_enum(self)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct identifier ignored_any
-    }
-}
-
-impl<'de, A> de::EnumAccess<'de> for MapAccessDeserializer<A>
-where
-    A: de::MapAccess<'de>,
-{
-    type Error = A::Error;
-    type Variant = private::MapAsEnum<A>;
-
-    fn variant_seed<T>(mut self, seed: T) -> Result<(T::Value, Self::Variant), Self::Error>
-    where
-        T: de::DeserializeSeed<'de>,
-    {
-        match tri!(self.map.next_key_seed(seed)) {
-            Some(key) => Ok((key, private::map_as_enum(self.map))),
-            None => Err(de::Error::invalid_type(de::Unexpected::Map, &"enum")),
-        }
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-/// A deserializer holding an `EnumAccess`.
-#[derive(Clone, Debug)]
-pub struct EnumAccessDeserializer<A> {
-    access: A,
-}
-
-impl<A> EnumAccessDeserializer<A> {
-    /// Construct a new `EnumAccessDeserializer<A>`.
-    pub fn new(access: A) -> Self {
-        EnumAccessDeserializer { access }
-    }
-}
-
-impl<'de, A> de::Deserializer<'de> for EnumAccessDeserializer<A>
-where
-    A: de::EnumAccess<'de>,
-{
-    type Error = A::Error;
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_enum(self.access)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct enum identifier ignored_any
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-mod private {
-    use crate::lib::*;
-
-    use crate::de::{
-        self, DeserializeSeed, Deserializer, MapAccess, Unexpected, VariantAccess, Visitor,
-    };
-
-    pub struct UnitOnly<E> {
-        marker: PhantomData<E>,
-    }
-
-    pub fn unit_only<T, E>(t: T) -> (T, UnitOnly<E>) {
-        (
-            t,
-            UnitOnly {
-                marker: PhantomData,
-            },
-        )
-    }
-
-    impl<'de, E> de::VariantAccess<'de> for UnitOnly<E>
-    where
-        E: de::Error,
-    {
-        type Error = E;
-
-        fn unit_variant(self) -> Result<(), Self::Error> {
-            Ok(())
-        }
-
-        fn newtype_variant_seed<T>(self, _seed: T) -> Result<T::Value, Self::Error>
-        where
-            T: de::DeserializeSeed<'de>,
-        {
-            Err(de::Error::invalid_type(
-                Unexpected::UnitVariant,
-                &"newtype variant",
-            ))
-        }
-
-        fn tuple_variant<V>(self, _len: usize, _visitor: V) -> Result<V::Value, Self::Error>
-        where
-            V: de::Visitor<'de>,
-        {
-            Err(de::Error::invalid_type(
-                Unexpected::UnitVariant,
-                &"tuple variant",
-            ))
-        }
-
-        fn struct_variant<V>(
-            self,
-            _fields: &'static [&'static str],
-            _visitor: V,
-        ) -> Result<V::Value, Self::Error>
-        where
-            V: de::Visitor<'de>,
-        {
-            Err(de::Error::invalid_type(
-                Unexpected::UnitVariant,
-                &"struct variant",
-            ))
-        }
-    }
-
-    pub struct MapAsEnum<A> {
-        map: A,
-    }
-
-    pub fn map_as_enum<A>(map: A) -> MapAsEnum<A> {
-        MapAsEnum { map }
-    }
-
-    impl<'de, A> VariantAccess<'de> for MapAsEnum<A>
-    where
-        A: MapAccess<'de>,
-    {
-        type Error = A::Error;
-
-        fn unit_variant(mut self) -> Result<(), Self::Error> {
-            self.map.next_value()
-        }
-
-        fn newtype_variant_seed<T>(mut self, seed: T) -> Result<T::Value, Self::Error>
-        where
-            T: DeserializeSeed<'de>,
-        {
-            self.map.next_value_seed(seed)
-        }
-
-        fn tuple_variant<V>(mut self, len: usize, visitor: V) -> Result<V::Value, Self::Error>
-        where
-            V: Visitor<'de>,
-        {
-            self.map.next_value_seed(SeedTupleVariant { len, visitor })
-        }
-
-        fn struct_variant<V>(
-            mut self,
-            _fields: &'static [&'static str],
-            visitor: V,
-        ) -> Result<V::Value, Self::Error>
-        where
-            V: Visitor<'de>,
-        {
-            self.map.next_value_seed(SeedStructVariant { visitor })
-        }
-    }
-
-    struct SeedTupleVariant<V> {
-        len: usize,
-        visitor: V,
-    }
-
-    impl<'de, V> DeserializeSeed<'de> for SeedTupleVariant<V>
-    where
-        V: Visitor<'de>,
-    {
-        type Value = V::Value;
-
-        fn deserialize<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
-        where
-            D: Deserializer<'de>,
-        {
-            deserializer.deserialize_tuple(self.len, self.visitor)
-        }
-    }
-
-    struct SeedStructVariant<V> {
-        visitor: V,
-    }
-
-    impl<'de, V> DeserializeSeed<'de> for SeedStructVariant<V>
-    where
-        V: Visitor<'de>,
-    {
-        type Value = V::Value;
-
-        fn deserialize<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
-        where
-            D: Deserializer<'de>,
-        {
-            deserializer.deserialize_map(self.visitor)
-        }
-    }
-
-    /// Avoid having to restate the generic types on `MapDeserializer`. The
-    /// `Iterator::Item` contains enough information to figure out K and V.
-    pub trait Pair {
-        type First;
-        type Second;
-        fn split(self) -> (Self::First, Self::Second);
-    }
-
-    impl<A, B> Pair for (A, B) {
-        type First = A;
-        type Second = B;
-        fn split(self) -> (A, B) {
-            self
-        }
-    }
-
-    pub type First<T> = <T as Pair>::First;
-    pub type Second<T> = <T as Pair>::Second;
-}
-- 
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