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EnumDeserializer

serde_with::enum_map

Struct EnumDeserializer 

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struct EnumDeserializer<M> {
    delegate: M,
    is_human_readable: bool,
}
Expand description

Deserialize an enum from a map element

The Deserializer implementation is the starting point, which first calls the EnumAccess methods. The EnumAccess is used to deserialize the enum variant type of the enum. The VariantAccess is used to deserialize the value part of the enum.

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§delegate: M§is_human_readable: bool

Trait Implementations§

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impl<'de, M> Deserializer<'de> for EnumDeserializer<M>
where M: MapAccess<'de>,

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type Error = <M as MapAccess<'de>>::Error

The error type that can be returned if some error occurs during deserialization.
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fn is_human_readable(&self) -> bool

Determine whether Deserialize implementations should expect to deserialize their human-readable form. Read more
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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_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_bool<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::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 as Deserializer<'de>>::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 as Deserializer<'de>>::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 as Deserializer<'de>>::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 as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i64 value.
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fn deserialize_i128<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an i128 value. Read more
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fn deserialize_u8<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::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 as Deserializer<'de>>::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 as Deserializer<'de>>::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 as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a u64 value.
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fn deserialize_u128<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an u128 value. Read more
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fn deserialize_f32<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::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 as Deserializer<'de>>::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 as Deserializer<'de>>::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 as Deserializer<'de>>::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_string<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::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_bytes<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::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 as Deserializer<'de>>::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_option<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting an optional value. Read more
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fn deserialize_unit<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::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 as Deserializer<'de>>::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_newtype_struct<V>( self, name: &'static str, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::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_seq<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::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 as Deserializer<'de>>::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 as Deserializer<'de>>::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_map<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::Error>
where V: Visitor<'de>,

Hint that the Deserialize type is expecting a map of key-value pairs.
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fn deserialize_struct<V>( self, name: &'static str, fields: &'static [&'static str], visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::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_identifier<V>( self, visitor: V, ) -> Result<V::Value, <Self as Deserializer<'de>>::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 as Deserializer<'de>>::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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impl<'de, M> EnumAccess<'de> for EnumDeserializer<M>
where M: MapAccess<'de>,

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type Error = <M as MapAccess<'de>>::Error

The error type that can be returned if some error occurs during deserialization.
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type Variant = EnumDeserializer<M>

The Visitor that will be used to deserialize the content of the enum variant.
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fn variant_seed<T>( self, seed: T, ) -> Result<(T::Value, Self::Variant), Self::Error>
where T: DeserializeSeed<'de>,

variant is called to identify which variant to deserialize. Read more
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fn variant<V>(self) -> Result<(V, Self::Variant), Self::Error>
where V: Deserialize<'de>,

variant is called to identify which variant to deserialize. Read more
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impl<'de, M> VariantAccess<'de> for EnumDeserializer<M>
where M: MapAccess<'de>,

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type Error = <M as MapAccess<'de>>::Error

The error type that can be returned if some error occurs during deserialization. Must match the error type of our EnumAccess.
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fn unit_variant(self) -> Result<(), Self::Error>

Called when deserializing a variant with no values. Read more
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fn newtype_variant_seed<T>(self, seed: T) -> Result<T::Value, Self::Error>
where T: DeserializeSeed<'de>,

Called when deserializing a variant with a single value. Read more
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fn tuple_variant<V>( self, len: usize, visitor: V, ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Called when deserializing a tuple-like variant. Read more
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fn struct_variant<V>( self, _fields: &'static [&'static str], visitor: V, ) -> Result<V::Value, Self::Error>
where V: Visitor<'de>,

Called when deserializing a struct-like variant. Read more
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fn newtype_variant<T>(self) -> Result<T, Self::Error>
where T: Deserialize<'de>,

Called when deserializing a variant with a single value. Read more

Auto Trait Implementations§

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impl<M> Freeze for EnumDeserializer<M>
where M: Freeze,

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impl<M> RefUnwindSafe for EnumDeserializer<M>
where M: RefUnwindSafe,

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impl<M> Send for EnumDeserializer<M>
where M: Send,

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impl<M> Sync for EnumDeserializer<M>
where M: Sync,

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impl<M> Unpin for EnumDeserializer<M>
where M: Unpin,

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impl<M> UnsafeUnpin for EnumDeserializer<M>
where M: UnsafeUnpin,

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impl<M> UnwindSafe for EnumDeserializer<M>
where M: UnwindSafe,

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, 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, 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.