Struct StringDeserializer 

pub struct StringDeserializer(/* private fields */);

A helper deserializer that deserializes a String.

Trait Implementations

impl Deserializer for StringDeserializer

type Error = Error

The error type that can be returned if some error occurs during deserialization.

fn visit<V>(&mut self, visitor: V) -> Result<<V as Visitor>::Value, Error>

where V: Visitor,

This method walks a visitor through a value as it is being deserialized.

fn visit_enum<V>( &mut self, _name: &str, _variants: &'static [&'static str], visitor: V, ) -> Result<<V as EnumVisitor>::Value, Error>

where V: EnumVisitor,

This method hints that the Deserialize type is expecting an enum value. This allows deserializers that provide a custom enumeration serialization to properly deserialize the type.

fn visit_bool<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a bool value.

fn visit_usize<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an usize value.

fn visit_u8<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an u8 value.

fn visit_u16<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an u16 value.

fn visit_u32<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an u32 value.

fn visit_u64<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an u64 value.

fn visit_isize<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an isize value.

fn visit_i8<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an i8 value.

fn visit_i16<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an i16 value.

fn visit_i32<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an i32 value.

fn visit_i64<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an i64 value.

fn visit_f32<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a f32 value.

fn visit_f64<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a f64 value.

fn visit_char<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a char value.

fn visit_str<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a &str value.

fn visit_string<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a String value.

fn visit_unit<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an unit value.

fn visit_option<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting an Option value. This allows deserializers that encode an optional value as a nullable value to convert the null value into a None, and a regular value as Some(value).

fn visit_seq<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a sequence value. This allows deserializers to parse sequences that aren’t tagged as sequences.

fn visit_map<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a map of values. This allows deserializers to parse sequences that aren’t tagged as maps.

fn visit_unit_struct<V>( &mut self, _name: &'static str, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a unit struct. This allows deserializers to a unit struct that aren’t tagged as a unit struct.

fn visit_newtype_struct<V>( &mut self, name: &'static str, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a newtype struct. This allows deserializers to a newtype struct that aren’t tagged as a newtype struct.

fn visit_tuple_struct<V>( &mut self, _name: &'static str, len: usize, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a tuple struct. This allows deserializers to parse sequences that aren’t tagged as sequences.

fn visit_struct<V>( &mut self, _name: &'static str, _fields: &'static [&'static str], visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a struct. This allows deserializers to parse sequences that aren’t tagged as maps.

fn visit_tuple<V>( &mut self, _len: usize, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a tuple value. This allows deserializers that provide a custom tuple serialization to properly deserialize the type.

fn visit_bytes<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting a Vec<u8>. This allows deserializers that provide a custom byte vector serialization to properly deserialize the type.

fn visit_struct_field<V>( &mut self, visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

This method hints that the Deserialize type is expecting some sort of struct key mapping. This allows deserializers to choose between &str, usize, or &u8 to properly deserialize a struct key.

fn format() -> &'static str

Specify a format string for the deserializer.

impl<'a> VariantVisitor for StringDeserializer

type Error = Error

The error type that can be returned if some error occurs during deserialization.

fn visit_variant<T>(&mut self) -> Result<T, Error>

where T: Deserialize,

visit_variant is called to identify which variant to deserialize.

fn visit_unit(&mut self) -> Result<(), Error>

visit_unit is called when deserializing a variant with no values.

fn visit_newtype<T>(&mut self) -> Result<T, Self::Error>

where T: Deserialize,

visit_newtype is called when deserializing a variant with a single value. By default this uses the visit_tuple method to deserialize the value.

fn visit_tuple<V>( &mut self, _len: usize, _visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

visit_tuple is called when deserializing a tuple-like variant.

fn visit_struct<V>( &mut self, _fields: &'static [&'static str], _visitor: V, ) -> Result<<V as Visitor>::Value, Self::Error>

where V: Visitor,

visit_struct is called when deserializing a struct-like variant.