# Struct cargo::util::config::de::Deserializer

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    pub(super) struct Deserializer<'config> {
        pub(super) config: &'config Config,
        pub(super) key: ConfigKey,
        pub(super) env_prefix_ok: bool,
    }

Expand description

Serde deserializer used to convert config values to a target type using `Config::get`.

## Fields§

§`config: &'config Config`§`key: ConfigKey`

The current key being deserialized.

§`env_prefix_ok: bool`

Whether or not this key part is allowed to be an inner table. For example, `profile.dev.build-override` needs to check if CARGO_PROFILE_DEV_BUILD_OVERRIDE_ prefixes exist. But CARGO_BUILD_TARGET should not check for prefixes because it would collide with CARGO_BUILD_TARGET_DIR. See `ConfigMapAccess` for details.

## Trait Implementations§

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### impl<'config> Clone for Deserializer<'config>

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#### fn clone(&self) -> Deserializer<'config>

Returns a copy of the value. Read more
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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl<'de, 'config> Deserializer<'de> for Deserializer<'config>

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#### type Error = ConfigError

The error type that can be returned if some error occurs during deserialization.
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#### fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Require the `Deserializer` to figure out how to drive the visitor based on what data type is in the input. Read more
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#### fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a `bool` value.
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#### fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting an `i8` value.
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#### fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting an `i16` value.
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#### fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting an `i32` value.
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#### fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting an `i64` value.
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#### fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a `u8` value.
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#### fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a `u16` value.
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#### fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a `u32` value.
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#### fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a `u64` value.
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#### fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a string value and would benefit from taking ownership of buffered data owned by the `Deserializer`. Read more
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#### fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting an optional value. Read more
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#### fn deserialize_struct<V>( self, name: &'static str, fields: &'static [&'static str], visitor: V ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a struct with a particular name and fields.
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#### fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a map of key-value pairs.
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#### fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a sequence of values.
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#### fn deserialize_tuple<V>( self, _len: usize, visitor: V ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a sequence of values and knows how many values there are without looking at the serialized data.
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#### fn deserialize_tuple_struct<V>( self, _name: &'static str, _len: usize, visitor: V ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a tuple struct with a particular name and number of fields.
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#### fn deserialize_newtype_struct<V>( self, name: &'static str, visitor: V ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a newtype struct with a particular name.
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#### fn deserialize_enum<V>( self, _name: &'static str, _variants: &'static [&'static str], visitor: V ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting an enum value with a particular name and possible variants.
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#### fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a `f32` value.
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#### fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a `f64` value.
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#### fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a `char` value.
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#### fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a string value and does not benefit from taking ownership of buffered data owned by the `Deserializer`. Read more
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#### fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a byte array and does not benefit from taking ownership of buffered data owned by the `Deserializer`. Read more
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#### fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a byte array and would benefit from taking ownership of buffered data owned by the `Deserializer`. Read more
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#### fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a unit value.
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#### fn deserialize_unit_struct<V>( self, name: &'static str, visitor: V ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting a unit struct with a particular name.
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#### fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting the name of a struct field or the discriminant of an enum variant.
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#### fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type needs to deserialize a value whose type doesn’t matter because it is ignored. Read more
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#### fn deserialize_i128<V>( self, visitor: V ) -> Result<<V as Visitor<'de>>::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting an `i128` value. Read more
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#### fn deserialize_u128<V>( self, visitor: V ) -> Result<<V as Visitor<'de>>::Value, Self::Error>
where V: Visitor<'de>,

Hint that the `Deserialize` type is expecting an `u128` value. Read more
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#### fn is_human_readable(&self) -> bool

Determine whether `Deserialize` implementations should expect to deserialize their human-readable form. Read more

## Auto Trait Implementations§

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### impl<'config> !RefUnwindSafe for Deserializer<'config>

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### impl<'config> !Send for Deserializer<'config>

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### impl<'config> !Sync for Deserializer<'config>

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### impl<'config> Unpin for Deserializer<'config>

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### impl<'config> !UnwindSafe for Deserializer<'config>

## Blanket Implementations§

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### impl<T> Any for T
where T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
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### impl<T> Borrow<T> for T
where T: ?Sized,

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#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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### impl<T> BorrowMut<T> for T
where T: ?Sized,

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#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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### impl<T> From<T> for T

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#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T> Instrument for T

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#### fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [`Span`], returning an `Instrumented` wrapper. Read more
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#### fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current `Span`, returning an `Instrumented` wrapper. Read more
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### impl<T, U> Into<U> for T
where U: From<T>,

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#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<T> Pointable for T

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#### const ALIGN: usize = _

The alignment of pointer.
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#### type Init = T

The type for initializers.
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#### unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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#### unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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#### unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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#### unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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### impl<T> Same for T

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#### type Output = T

Should always be `Self`
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### impl<T> ToOwned for T
where T: Clone,

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#### type Owned = T

The resulting type after obtaining ownership.
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#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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### impl<T, U> TryFrom<U> for T
where U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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### impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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#### fn vzip(self) -> V

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### impl<T> WithSubscriber for T

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#### fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided `Subscriber` to this type, returning a [`WithDispatch`] wrapper. Read more
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#### fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default `Subscriber` to this type, returning a [`WithDispatch`] wrapper. Read more

## Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain `repr(...)` attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 64 bytes