Deleted vendor folder

1 files changed, 0 insertions, 1031 deletions

diff --git a/vendor/log/src/kv/value.rs b/vendor/log/src/kv/value.rs
deleted file mode 100644
index 9485d48..0000000
--- a/vendor/log/src/kv/value.rs
+++ /dev/null
@@ -1,1031 +0,0 @@
-//! Structured values.
-
-use std::fmt;
-
-extern crate value_bag;
-
-#[cfg(feature = "kv_unstable_sval")]
-extern crate sval;
-#[cfg(feature = "kv_unstable_sval")]
-extern crate sval_ref;
-
-#[cfg(feature = "kv_unstable_serde")]
-extern crate serde;
-
-use self::value_bag::ValueBag;
-
-pub use kv::Error;
-
-/// A type that can be converted into a [`Value`](struct.Value.html).
-pub trait ToValue {
-    /// Perform the conversion.
-    fn to_value(&self) -> Value;
-}
-
-impl<'a, T> ToValue for &'a T
-where
-    T: ToValue + ?Sized,
-{
-    fn to_value(&self) -> Value {
-        (**self).to_value()
-    }
-}
-
-impl<'v> ToValue for Value<'v> {
-    fn to_value(&self) -> Value {
-        Value {
-            inner: self.inner.clone(),
-        }
-    }
-}
-
-/// Get a value from a type implementing `std::fmt::Debug`.
-#[macro_export]
-macro_rules! as_debug {
-    ($capture:expr) => {
-        $crate::kv::Value::from_debug(&$capture)
-    };
-}
-
-/// Get a value from a type implementing `std::fmt::Display`.
-#[macro_export]
-macro_rules! as_display {
-    ($capture:expr) => {
-        $crate::kv::Value::from_display(&$capture)
-    };
-}
-
-/// Get a value from an error.
-#[cfg(feature = "kv_unstable_std")]
-#[macro_export]
-macro_rules! as_error {
-    ($capture:expr) => {
-        $crate::kv::Value::from_dyn_error(&$capture)
-    };
-}
-
-#[cfg(feature = "kv_unstable_serde")]
-/// Get a value from a type implementing `serde::Serialize`.
-#[macro_export]
-macro_rules! as_serde {
-    ($capture:expr) => {
-        $crate::kv::Value::from_serde(&$capture)
-    };
-}
-
-/// Get a value from a type implementing `sval::Value`.
-#[cfg(feature = "kv_unstable_sval")]
-#[macro_export]
-macro_rules! as_sval {
-    ($capture:expr) => {
-        $crate::kv::Value::from_sval(&$capture)
-    };
-}
-
-/// A value in a structured key-value pair.
-///
-/// # Capturing values
-///
-/// There are a few ways to capture a value:
-///
-/// - Using the `Value::capture_*` methods.
-/// - Using the `Value::from_*` methods.
-/// - Using the `ToValue` trait.
-/// - Using the standard `From` trait.
-///
-/// ## Using the `Value::capture_*` methods
-///
-/// `Value` offers a few constructor methods that capture values of different kinds.
-/// These methods require a `T: 'static` to support downcasting.
-///
-/// ```
-/// use log::kv::Value;
-///
-/// let value = Value::capture_debug(&42i32);
-///
-/// assert_eq!(Some(42), value.to_i64());
-/// ```
-///
-/// ## Using the `Value::from_*` methods
-///
-/// `Value` offers a few constructor methods that capture values of different kinds.
-/// These methods don't require `T: 'static`, but can't support downcasting.
-///
-/// ```
-/// use log::kv::Value;
-///
-/// let value = Value::from_debug(&42i32);
-///
-/// assert_eq!(None, value.to_i64());
-/// ```
-///
-/// ## Using the `ToValue` trait
-///
-/// The `ToValue` trait can be used to capture values generically.
-/// It's the bound used by `Source`.
-///
-/// ```
-/// # use log::kv::ToValue;
-/// let value = 42i32.to_value();
-///
-/// assert_eq!(Some(42), value.to_i64());
-/// ```
-///
-/// ```
-/// # use std::fmt::Debug;
-/// use log::kv::ToValue;
-///
-/// let value = (&42i32 as &dyn Debug).to_value();
-///
-/// assert_eq!(None, value.to_i64());
-/// ```
-///
-/// ## Using the standard `From` trait
-///
-/// Standard types that implement `ToValue` also implement `From`.
-///
-/// ```
-/// use log::kv::Value;
-///
-/// let value = Value::from(42i32);
-///
-/// assert_eq!(Some(42), value.to_i64());
-/// ```
-pub struct Value<'v> {
-    inner: ValueBag<'v>,
-}
-
-impl<'v> Value<'v> {
-    /// Get a value from a type implementing `ToValue`.
-    pub fn from_any<T>(value: &'v T) -> Self
-    where
-        T: ToValue,
-    {
-        value.to_value()
-    }
-
-    /// Get a value from a type implementing `std::fmt::Debug`.
-    pub fn capture_debug<T>(value: &'v T) -> Self
-    where
-        T: fmt::Debug + 'static,
-    {
-        Value {
-            inner: ValueBag::capture_debug(value),
-        }
-    }
-
-    /// Get a value from a type implementing `std::fmt::Display`.
-    pub fn capture_display<T>(value: &'v T) -> Self
-    where
-        T: fmt::Display + 'static,
-    {
-        Value {
-            inner: ValueBag::capture_display(value),
-        }
-    }
-
-    /// Get a value from an error.
-    #[cfg(feature = "kv_unstable_std")]
-    pub fn capture_error<T>(err: &'v T) -> Self
-    where
-        T: std::error::Error + 'static,
-    {
-        Value {
-            inner: ValueBag::capture_error(err),
-        }
-    }
-
-    #[cfg(feature = "kv_unstable_serde")]
-    /// Get a value from a type implementing `serde::Serialize`.
-    pub fn capture_serde<T>(value: &'v T) -> Self
-    where
-        T: self::serde::Serialize + 'static,
-    {
-        Value {
-            inner: ValueBag::capture_serde1(value),
-        }
-    }
-
-    /// Get a value from a type implementing `sval::Value`.
-    #[cfg(feature = "kv_unstable_sval")]
-    pub fn capture_sval<T>(value: &'v T) -> Self
-    where
-        T: self::sval::Value + 'static,
-    {
-        Value {
-            inner: ValueBag::capture_sval2(value),
-        }
-    }
-
-    /// Get a value from a type implementing `std::fmt::Debug`.
-    pub fn from_debug<T>(value: &'v T) -> Self
-    where
-        T: fmt::Debug,
-    {
-        Value {
-            inner: ValueBag::from_debug(value),
-        }
-    }
-
-    /// Get a value from a type implementing `std::fmt::Display`.
-    pub fn from_display<T>(value: &'v T) -> Self
-    where
-        T: fmt::Display,
-    {
-        Value {
-            inner: ValueBag::from_display(value),
-        }
-    }
-
-    /// Get a value from a type implementing `serde::Serialize`.
-    #[cfg(feature = "kv_unstable_serde")]
-    pub fn from_serde<T>(value: &'v T) -> Self
-    where
-        T: self::serde::Serialize,
-    {
-        Value {
-            inner: ValueBag::from_serde1(value),
-        }
-    }
-
-    /// Get a value from a type implementing `sval::Value`.
-    #[cfg(feature = "kv_unstable_sval")]
-    pub fn from_sval<T>(value: &'v T) -> Self
-    where
-        T: self::sval::Value,
-    {
-        Value {
-            inner: ValueBag::from_sval2(value),
-        }
-    }
-
-    /// Get a value from a dynamic `std::fmt::Debug`.
-    pub fn from_dyn_debug(value: &'v dyn fmt::Debug) -> Self {
-        Value {
-            inner: ValueBag::from_dyn_debug(value),
-        }
-    }
-
-    /// Get a value from a dynamic `std::fmt::Display`.
-    pub fn from_dyn_display(value: &'v dyn fmt::Display) -> Self {
-        Value {
-            inner: ValueBag::from_dyn_display(value),
-        }
-    }
-
-    /// Get a value from a dynamic error.
-    #[cfg(feature = "kv_unstable_std")]
-    pub fn from_dyn_error(err: &'v (dyn std::error::Error + 'static)) -> Self {
-        Value {
-            inner: ValueBag::from_dyn_error(err),
-        }
-    }
-
-    /// Get a value from an internal primitive.
-    fn from_value_bag<T>(value: T) -> Self
-    where
-        T: Into<ValueBag<'v>>,
-    {
-        Value {
-            inner: value.into(),
-        }
-    }
-
-    /// Check whether this value can be downcast to `T`.
-    pub fn is<T: 'static>(&self) -> bool {
-        self.inner.is::<T>()
-    }
-
-    /// Try downcast this value to `T`.
-    pub fn downcast_ref<T: 'static>(&self) -> Option<&T> {
-        self.inner.downcast_ref::<T>()
-    }
-
-    /// Inspect this value using a simple visitor.
-    pub fn visit(&self, visitor: impl Visit<'v>) -> Result<(), Error> {
-        struct Visitor<V>(V);
-
-        impl<'v, V> value_bag::visit::Visit<'v> for Visitor<V>
-        where
-            V: Visit<'v>,
-        {
-            fn visit_any(&mut self, value: ValueBag) -> Result<(), value_bag::Error> {
-                self.0
-                    .visit_any(Value { inner: value })
-                    .map_err(Error::into_value)
-            }
-
-            fn visit_u64(&mut self, value: u64) -> Result<(), value_bag::Error> {
-                self.0.visit_u64(value).map_err(Error::into_value)
-            }
-
-            fn visit_i64(&mut self, value: i64) -> Result<(), value_bag::Error> {
-                self.0.visit_i64(value).map_err(Error::into_value)
-            }
-
-            fn visit_u128(&mut self, value: u128) -> Result<(), value_bag::Error> {
-                self.0.visit_u128(value).map_err(Error::into_value)
-            }
-
-            fn visit_i128(&mut self, value: i128) -> Result<(), value_bag::Error> {
-                self.0.visit_i128(value).map_err(Error::into_value)
-            }
-
-            fn visit_f64(&mut self, value: f64) -> Result<(), value_bag::Error> {
-                self.0.visit_f64(value).map_err(Error::into_value)
-            }
-
-            fn visit_bool(&mut self, value: bool) -> Result<(), value_bag::Error> {
-                self.0.visit_bool(value).map_err(Error::into_value)
-            }
-
-            fn visit_str(&mut self, value: &str) -> Result<(), value_bag::Error> {
-                self.0.visit_str(value).map_err(Error::into_value)
-            }
-
-            fn visit_borrowed_str(&mut self, value: &'v str) -> Result<(), value_bag::Error> {
-                self.0.visit_borrowed_str(value).map_err(Error::into_value)
-            }
-
-            fn visit_char(&mut self, value: char) -> Result<(), value_bag::Error> {
-                self.0.visit_char(value).map_err(Error::into_value)
-            }
-
-            #[cfg(feature = "kv_unstable_std")]
-            fn visit_error(
-                &mut self,
-                err: &(dyn std::error::Error + 'static),
-            ) -> Result<(), value_bag::Error> {
-                self.0.visit_error(err).map_err(Error::into_value)
-            }
-
-            #[cfg(feature = "kv_unstable_std")]
-            fn visit_borrowed_error(
-                &mut self,
-                err: &'v (dyn std::error::Error + 'static),
-            ) -> Result<(), value_bag::Error> {
-                self.0.visit_borrowed_error(err).map_err(Error::into_value)
-            }
-        }
-
-        self.inner
-            .visit(&mut Visitor(visitor))
-            .map_err(Error::from_value)
-    }
-}
-
-impl<'v> fmt::Debug for Value<'v> {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        fmt::Debug::fmt(&self.inner, f)
-    }
-}
-
-impl<'v> fmt::Display for Value<'v> {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        fmt::Display::fmt(&self.inner, f)
-    }
-}
-
-impl ToValue for dyn fmt::Debug {
-    fn to_value(&self) -> Value {
-        Value::from_dyn_debug(self)
-    }
-}
-
-impl ToValue for dyn fmt::Display {
-    fn to_value(&self) -> Value {
-        Value::from_dyn_display(self)
-    }
-}
-
-#[cfg(feature = "kv_unstable_std")]
-impl ToValue for dyn std::error::Error + 'static {
-    fn to_value(&self) -> Value {
-        Value::from_dyn_error(self)
-    }
-}
-
-#[cfg(feature = "kv_unstable_serde")]
-impl<'v> self::serde::Serialize for Value<'v> {
-    fn serialize<S>(&self, s: S) -> Result<S::Ok, S::Error>
-    where
-        S: self::serde::Serializer,
-    {
-        self.inner.serialize(s)
-    }
-}
-
-#[cfg(feature = "kv_unstable_sval")]
-impl<'v> self::sval::Value for Value<'v> {
-    fn stream<'sval, S: self::sval::Stream<'sval> + ?Sized>(
-        &'sval self,
-        stream: &mut S,
-    ) -> self::sval::Result {
-        self::sval::Value::stream(&self.inner, stream)
-    }
-}
-
-#[cfg(feature = "kv_unstable_sval")]
-impl<'v> self::sval_ref::ValueRef<'v> for Value<'v> {
-    fn stream_ref<S: self::sval::Stream<'v> + ?Sized>(&self, stream: &mut S) -> self::sval::Result {
-        self::sval_ref::ValueRef::stream_ref(&self.inner, stream)
-    }
-}
-
-impl ToValue for str {
-    fn to_value(&self) -> Value {
-        Value::from(self)
-    }
-}
-
-impl ToValue for u128 {
-    fn to_value(&self) -> Value {
-        Value::from(self)
-    }
-}
-
-impl ToValue for i128 {
-    fn to_value(&self) -> Value {
-        Value::from(self)
-    }
-}
-
-impl ToValue for std::num::NonZeroU128 {
-    fn to_value(&self) -> Value {
-        Value::from(self)
-    }
-}
-
-impl ToValue for std::num::NonZeroI128 {
-    fn to_value(&self) -> Value {
-        Value::from(self)
-    }
-}
-
-impl<'v> From<&'v str> for Value<'v> {
-    fn from(value: &'v str) -> Self {
-        Value::from_value_bag(value)
-    }
-}
-
-impl<'v> From<&'v u128> for Value<'v> {
-    fn from(value: &'v u128) -> Self {
-        Value::from_value_bag(value)
-    }
-}
-
-impl<'v> From<&'v i128> for Value<'v> {
-    fn from(value: &'v i128) -> Self {
-        Value::from_value_bag(value)
-    }
-}
-
-impl<'v> From<&'v std::num::NonZeroU128> for Value<'v> {
-    fn from(v: &'v std::num::NonZeroU128) -> Value<'v> {
-        // SAFETY: `NonZeroU128` and `u128` have the same ABI
-        Value::from_value_bag(unsafe { std::mem::transmute::<&std::num::NonZeroU128, &u128>(v) })
-    }
-}
-
-impl<'v> From<&'v std::num::NonZeroI128> for Value<'v> {
-    fn from(v: &'v std::num::NonZeroI128) -> Value<'v> {
-        // SAFETY: `NonZeroI128` and `i128` have the same ABI
-        Value::from_value_bag(unsafe { std::mem::transmute::<&std::num::NonZeroI128, &i128>(v) })
-    }
-}
-
-impl ToValue for () {
-    fn to_value(&self) -> Value {
-        Value::from_value_bag(())
-    }
-}
-
-impl<T> ToValue for Option<T>
-where
-    T: ToValue,
-{
-    fn to_value(&self) -> Value {
-        match *self {
-            Some(ref value) => value.to_value(),
-            None => Value::from_value_bag(()),
-        }
-    }
-}
-
-macro_rules! impl_to_value_primitive {
-    ($($into_ty:ty,)*) => {
-        $(
-            impl ToValue for $into_ty {
-                fn to_value(&self) -> Value {
-                    Value::from(*self)
-                }
-            }
-
-            impl<'v> From<$into_ty> for Value<'v> {
-                fn from(value: $into_ty) -> Self {
-                    Value::from_value_bag(value)
-                }
-            }
-        )*
-    };
-}
-
-macro_rules! impl_to_value_nonzero_primitive {
-    ($($into_ty:ident,)*) => {
-        $(
-            impl ToValue for std::num::$into_ty {
-                fn to_value(&self) -> Value {
-                    Value::from(self.get())
-                }
-            }
-
-            impl<'v> From<std::num::$into_ty> for Value<'v> {
-                fn from(value: std::num::$into_ty) -> Self {
-                    Value::from(value.get())
-                }
-            }
-        )*
-    };
-}
-
-macro_rules! impl_value_to_primitive {
-    ($(#[doc = $doc:tt] $into_name:ident -> $into_ty:ty,)*) => {
-        impl<'v> Value<'v> {
-            $(
-                #[doc = $doc]
-                pub fn $into_name(&self) -> Option<$into_ty> {
-                    self.inner.$into_name()
-                }
-            )*
-        }
-    }
-}
-
-impl_to_value_primitive![usize, u8, u16, u32, u64, isize, i8, i16, i32, i64, f32, f64, char, bool,];
-
-#[rustfmt::skip]
-impl_to_value_nonzero_primitive![
-    NonZeroUsize, NonZeroU8, NonZeroU16, NonZeroU32, NonZeroU64,
-    NonZeroIsize, NonZeroI8, NonZeroI16, NonZeroI32, NonZeroI64,
-];
-
-impl_value_to_primitive![
-    #[doc = "Try convert this value into a `u64`."]
-    to_u64 -> u64,
-    #[doc = "Try convert this value into a `i64`."]
-    to_i64 -> i64,
-    #[doc = "Try convert this value into a `u128`."]
-    to_u128 -> u128,
-    #[doc = "Try convert this value into a `i128`."]
-    to_i128 -> i128,
-    #[doc = "Try convert this value into a `f64`."]
-    to_f64 -> f64,
-    #[doc = "Try convert this value into a `char`."]
-    to_char -> char,
-    #[doc = "Try convert this value into a `bool`."]
-    to_bool -> bool,
-];
-
-impl<'v> Value<'v> {
-    /// Try convert this value into an error.
-    #[cfg(feature = "kv_unstable_std")]
-    pub fn to_borrowed_error(&self) -> Option<&(dyn std::error::Error + 'static)> {
-        self.inner.to_borrowed_error()
-    }
-
-    /// Try convert this value into a borrowed string.
-    pub fn to_borrowed_str(&self) -> Option<&str> {
-        self.inner.to_borrowed_str()
-    }
-}
-
-#[cfg(feature = "kv_unstable_std")]
-mod std_support {
-    use super::*;
-
-    use std::borrow::Cow;
-
-    impl<T> ToValue for Box<T>
-    where
-        T: ToValue + ?Sized,
-    {
-        fn to_value(&self) -> Value {
-            (**self).to_value()
-        }
-    }
-
-    impl ToValue for String {
-        fn to_value(&self) -> Value {
-            Value::from(&**self)
-        }
-    }
-
-    impl<'v> ToValue for Cow<'v, str> {
-        fn to_value(&self) -> Value {
-            Value::from(&**self)
-        }
-    }
-
-    impl<'v> Value<'v> {
-        /// Try convert this value into a string.
-        pub fn to_str(&self) -> Option<Cow<str>> {
-            self.inner.to_str()
-        }
-    }
-
-    impl<'v> From<&'v String> for Value<'v> {
-        fn from(v: &'v String) -> Self {
-            Value::from(&**v)
-        }
-    }
-}
-
-/// A visitor for a `Value`.
-pub trait Visit<'v> {
-    /// Visit a `Value`.
-    ///
-    /// This is the only required method on `Visit` and acts as a fallback for any
-    /// more specific methods that aren't overridden.
-    /// The `Value` may be formatted using its `fmt::Debug` or `fmt::Display` implementation,
-    /// or serialized using its `sval::Value` or `serde::Serialize` implementation.
-    fn visit_any(&mut self, value: Value) -> Result<(), Error>;
-
-    /// Visit an unsigned integer.
-    fn visit_u64(&mut self, value: u64) -> Result<(), Error> {
-        self.visit_any(value.into())
-    }
-
-    /// Visit a signed integer.
-    fn visit_i64(&mut self, value: i64) -> Result<(), Error> {
-        self.visit_any(value.into())
-    }
-
-    /// Visit a big unsigned integer.
-    fn visit_u128(&mut self, value: u128) -> Result<(), Error> {
-        self.visit_any((&value).into())
-    }
-
-    /// Visit a big signed integer.
-    fn visit_i128(&mut self, value: i128) -> Result<(), Error> {
-        self.visit_any((&value).into())
-    }
-
-    /// Visit a floating point.
-    fn visit_f64(&mut self, value: f64) -> Result<(), Error> {
-        self.visit_any(value.into())
-    }
-
-    /// Visit a boolean.
-    fn visit_bool(&mut self, value: bool) -> Result<(), Error> {
-        self.visit_any(value.into())
-    }
-
-    /// Visit a string.
-    fn visit_str(&mut self, value: &str) -> Result<(), Error> {
-        self.visit_any(value.into())
-    }
-
-    /// Visit a string.
-    fn visit_borrowed_str(&mut self, value: &'v str) -> Result<(), Error> {
-        self.visit_str(value)
-    }
-
-    /// Visit a Unicode character.
-    fn visit_char(&mut self, value: char) -> Result<(), Error> {
-        let mut b = [0; 4];
-        self.visit_str(&*value.encode_utf8(&mut b))
-    }
-
-    /// Visit an error.
-    #[cfg(feature = "kv_unstable_std")]
-    fn visit_error(&mut self, err: &(dyn std::error::Error + 'static)) -> Result<(), Error> {
-        self.visit_any(Value::from_dyn_error(err))
-    }
-
-    /// Visit an error.
-    #[cfg(feature = "kv_unstable_std")]
-    fn visit_borrowed_error(
-        &mut self,
-        err: &'v (dyn std::error::Error + 'static),
-    ) -> Result<(), Error> {
-        self.visit_any(Value::from_dyn_error(err))
-    }
-}
-
-impl<'a, 'v, T: ?Sized> Visit<'v> for &'a mut T
-where
-    T: Visit<'v>,
-{
-    fn visit_any(&mut self, value: Value) -> Result<(), Error> {
-        (**self).visit_any(value)
-    }
-
-    fn visit_u64(&mut self, value: u64) -> Result<(), Error> {
-        (**self).visit_u64(value)
-    }
-
-    fn visit_i64(&mut self, value: i64) -> Result<(), Error> {
-        (**self).visit_i64(value)
-    }
-
-    fn visit_u128(&mut self, value: u128) -> Result<(), Error> {
-        (**self).visit_u128(value)
-    }
-
-    fn visit_i128(&mut self, value: i128) -> Result<(), Error> {
-        (**self).visit_i128(value)
-    }
-
-    fn visit_f64(&mut self, value: f64) -> Result<(), Error> {
-        (**self).visit_f64(value)
-    }
-
-    fn visit_bool(&mut self, value: bool) -> Result<(), Error> {
-        (**self).visit_bool(value)
-    }
-
-    fn visit_str(&mut self, value: &str) -> Result<(), Error> {
-        (**self).visit_str(value)
-    }
-
-    fn visit_borrowed_str(&mut self, value: &'v str) -> Result<(), Error> {
-        (**self).visit_borrowed_str(value)
-    }
-
-    fn visit_char(&mut self, value: char) -> Result<(), Error> {
-        (**self).visit_char(value)
-    }
-
-    #[cfg(feature = "kv_unstable_std")]
-    fn visit_error(&mut self, err: &(dyn std::error::Error + 'static)) -> Result<(), Error> {
-        (**self).visit_error(err)
-    }
-
-    #[cfg(feature = "kv_unstable_std")]
-    fn visit_borrowed_error(
-        &mut self,
-        err: &'v (dyn std::error::Error + 'static),
-    ) -> Result<(), Error> {
-        (**self).visit_borrowed_error(err)
-    }
-}
-
-#[cfg(test)]
-pub(crate) mod tests {
-    use super::*;
-
-    pub(crate) use super::value_bag::test::TestToken as Token;
-
-    impl<'v> Value<'v> {
-        pub(crate) fn to_token(&self) -> Token {
-            self.inner.to_test_token()
-        }
-    }
-
-    fn unsigned() -> impl Iterator<Item = Value<'static>> {
-        vec![
-            Value::from(8u8),
-            Value::from(16u16),
-            Value::from(32u32),
-            Value::from(64u64),
-            Value::from(1usize),
-            Value::from(std::num::NonZeroU8::new(8).unwrap()),
-            Value::from(std::num::NonZeroU16::new(16).unwrap()),
-            Value::from(std::num::NonZeroU32::new(32).unwrap()),
-            Value::from(std::num::NonZeroU64::new(64).unwrap()),
-            Value::from(std::num::NonZeroUsize::new(1).unwrap()),
-        ]
-        .into_iter()
-    }
-
-    fn signed() -> impl Iterator<Item = Value<'static>> {
-        vec![
-            Value::from(-8i8),
-            Value::from(-16i16),
-            Value::from(-32i32),
-            Value::from(-64i64),
-            Value::from(-1isize),
-            Value::from(std::num::NonZeroI8::new(-8).unwrap()),
-            Value::from(std::num::NonZeroI16::new(-16).unwrap()),
-            Value::from(std::num::NonZeroI32::new(-32).unwrap()),
-            Value::from(std::num::NonZeroI64::new(-64).unwrap()),
-            Value::from(std::num::NonZeroIsize::new(-1).unwrap()),
-        ]
-        .into_iter()
-    }
-
-    fn float() -> impl Iterator<Item = Value<'static>> {
-        vec![Value::from(32.32f32), Value::from(64.64f64)].into_iter()
-    }
-
-    fn bool() -> impl Iterator<Item = Value<'static>> {
-        vec![Value::from(true), Value::from(false)].into_iter()
-    }
-
-    fn str() -> impl Iterator<Item = Value<'static>> {
-        vec![Value::from("a string"), Value::from("a loong string")].into_iter()
-    }
-
-    fn char() -> impl Iterator<Item = Value<'static>> {
-        vec![Value::from('a'), Value::from('⛰')].into_iter()
-    }
-
-    #[test]
-    fn test_capture_fmt() {
-        assert_eq!(Some(42u64), Value::capture_display(&42).to_u64());
-        assert_eq!(Some(42u64), Value::capture_debug(&42).to_u64());
-
-        assert!(Value::from_display(&42).to_u64().is_none());
-        assert!(Value::from_debug(&42).to_u64().is_none());
-    }
-
-    #[cfg(feature = "kv_unstable_std")]
-    #[test]
-    fn test_capture_error() {
-        let err = std::io::Error::from(std::io::ErrorKind::Other);
-
-        assert!(Value::capture_error(&err).to_borrowed_error().is_some());
-        assert!(Value::from_dyn_error(&err).to_borrowed_error().is_some());
-    }
-
-    #[cfg(feature = "kv_unstable_serde")]
-    #[test]
-    fn test_capture_serde() {
-        assert_eq!(Some(42u64), Value::capture_serde(&42).to_u64());
-
-        assert_eq!(Some(42u64), Value::from_serde(&42).to_u64());
-    }
-
-    #[cfg(feature = "kv_unstable_sval")]
-    #[test]
-    fn test_capture_sval() {
-        assert_eq!(Some(42u64), Value::capture_sval(&42).to_u64());
-
-        assert_eq!(Some(42u64), Value::from_sval(&42).to_u64());
-    }
-
-    #[test]
-    fn test_to_value_display() {
-        assert_eq!(42u64.to_value().to_string(), "42");
-        assert_eq!(42i64.to_value().to_string(), "42");
-        assert_eq!(42.01f64.to_value().to_string(), "42.01");
-        assert_eq!(true.to_value().to_string(), "true");
-        assert_eq!('a'.to_value().to_string(), "a");
-        assert_eq!("a loong string".to_value().to_string(), "a loong string");
-        assert_eq!(Some(true).to_value().to_string(), "true");
-        assert_eq!(().to_value().to_string(), "None");
-        assert_eq!(Option::None::<bool>.to_value().to_string(), "None");
-    }
-
-    #[test]
-    fn test_to_value_structured() {
-        assert_eq!(42u64.to_value().to_token(), Token::U64(42));
-        assert_eq!(42i64.to_value().to_token(), Token::I64(42));
-        assert_eq!(42.01f64.to_value().to_token(), Token::F64(42.01));
-        assert_eq!(true.to_value().to_token(), Token::Bool(true));
-        assert_eq!('a'.to_value().to_token(), Token::Char('a'));
-        assert_eq!(
-            "a loong string".to_value().to_token(),
-            Token::Str("a loong string".into())
-        );
-        assert_eq!(Some(true).to_value().to_token(), Token::Bool(true));
-        assert_eq!(().to_value().to_token(), Token::None);
-        assert_eq!(Option::None::<bool>.to_value().to_token(), Token::None);
-    }
-
-    #[test]
-    fn test_to_number() {
-        for v in unsigned() {
-            assert!(v.to_u64().is_some());
-            assert!(v.to_i64().is_some());
-        }
-
-        for v in signed() {
-            assert!(v.to_i64().is_some());
-        }
-
-        for v in unsigned().chain(signed()).chain(float()) {
-            assert!(v.to_f64().is_some());
-        }
-
-        for v in bool().chain(str()).chain(char()) {
-            assert!(v.to_u64().is_none());
-            assert!(v.to_i64().is_none());
-            assert!(v.to_f64().is_none());
-        }
-    }
-
-    #[test]
-    fn test_to_str() {
-        for v in str() {
-            assert!(v.to_borrowed_str().is_some());
-
-            #[cfg(feature = "kv_unstable_std")]
-            assert!(v.to_str().is_some());
-        }
-
-        let short_lived = String::from("short lived");
-        let v = Value::from(&*short_lived);
-
-        assert!(v.to_borrowed_str().is_some());
-
-        #[cfg(feature = "kv_unstable_std")]
-        assert!(v.to_str().is_some());
-
-        for v in unsigned().chain(signed()).chain(float()).chain(bool()) {
-            assert!(v.to_borrowed_str().is_none());
-
-            #[cfg(feature = "kv_unstable_std")]
-            assert!(v.to_str().is_none());
-        }
-    }
-
-    #[test]
-    fn test_to_bool() {
-        for v in bool() {
-            assert!(v.to_bool().is_some());
-        }
-
-        for v in unsigned()
-            .chain(signed())
-            .chain(float())
-            .chain(str())
-            .chain(char())
-        {
-            assert!(v.to_bool().is_none());
-        }
-    }
-
-    #[test]
-    fn test_to_char() {
-        for v in char() {
-            assert!(v.to_char().is_some());
-        }
-
-        for v in unsigned()
-            .chain(signed())
-            .chain(float())
-            .chain(str())
-            .chain(bool())
-        {
-            assert!(v.to_char().is_none());
-        }
-    }
-
-    #[test]
-    fn test_downcast_ref() {
-        #[derive(Debug)]
-        struct Foo(u64);
-
-        let v = Value::capture_debug(&Foo(42));
-
-        assert!(v.is::<Foo>());
-        assert_eq!(42u64, v.downcast_ref::<Foo>().expect("invalid downcast").0);
-    }
-
-    #[test]
-    fn test_visit_integer() {
-        struct Extract(Option<u64>);
-
-        impl<'v> Visit<'v> for Extract {
-            fn visit_any(&mut self, value: Value) -> Result<(), Error> {
-                unimplemented!("unexpected value: {:?}", value)
-            }
-
-            fn visit_u64(&mut self, value: u64) -> Result<(), Error> {
-                self.0 = Some(value);
-
-                Ok(())
-            }
-        }
-
-        let mut extract = Extract(None);
-        Value::from(42u64).visit(&mut extract).unwrap();
-
-        assert_eq!(Some(42), extract.0);
-    }
-
-    #[test]
-    fn test_visit_borrowed_str() {
-        struct Extract<'v>(Option<&'v str>);
-
-        impl<'v> Visit<'v> for Extract<'v> {
-            fn visit_any(&mut self, value: Value) -> Result<(), Error> {
-                unimplemented!("unexpected value: {:?}", value)
-            }
-
-            fn visit_borrowed_str(&mut self, value: &'v str) -> Result<(), Error> {
-                self.0 = Some(value);
-
-                Ok(())
-            }
-        }
-
-        let mut extract = Extract(None);
-
-        let short_lived = String::from("A short-lived string");
-        Value::from(&*short_lived).visit(&mut extract).unwrap();
-
-        assert_eq!(Some("A short-lived string"), extract.0);
-    }
-}