Struct serde_json::value::Deserializer

pub struct Deserializer {
    // some fields omitted
}

Creates a serde::Deserializer from a json::Value object.

Methods

impl Deserializer

fn new(value: Value) -> Deserializer

Creates a new deserializer instance for deserializing the specified JSON value.

Trait Implementations

impl Deserializer for Deserializer

type Error = Error

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

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

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

fn deserialize_option<V>(&mut self, visitor: V) -> Result<V::Value, 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 deserialize_enum<V>(&mut self, _name: &str, _variants: &'static [&'static str], visitor: V) -> Result<V::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 deserialize_newtype_struct<V>(&mut self, _name: &'static str, visitor: V) -> Result<V::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. A reasonable default is to simply deserialize the expected value directly.

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

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

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

This method hints that the Deserialize type is expecting an usize value. A reasonable default is to forward to deserialize_u64.

fn deserialize_u8<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

This method hints that the Deserialize type is expecting an u8 value. A reasonable default is to forward to deserialize_u64.

fn deserialize_u16<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

This method hints that the Deserialize type is expecting an u16 value. A reasonable default is to forward to deserialize_u64.

fn deserialize_u32<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

This method hints that the Deserialize type is expecting an u32 value. A reasonable default is to forward to deserialize_u64.

fn deserialize_u64<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

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

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

This method hints that the Deserialize type is expecting an isize value. A reasonable default is to forward to deserialize_i64.

fn deserialize_i8<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

This method hints that the Deserialize type is expecting an i8 value. A reasonable default is to forward to deserialize_i64.

fn deserialize_i16<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

This method hints that the Deserialize type is expecting an i16 value. A reasonable default is to forward to deserialize_i64.

fn deserialize_i32<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

This method hints that the Deserialize type is expecting an i32 value. A reasonable default is to forward to deserialize_i64.

fn deserialize_i64<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

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

fn deserialize_f32<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

This method hints that the Deserialize type is expecting a f32 value. A reasonable default is to forward to deserialize_f64.

fn deserialize_f64<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

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

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

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

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

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

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

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

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

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

fn deserialize_seq<V>(&mut self, visitor: V) -> Result<V::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 deserialize_seq_fixed_size<V>(&mut self, _: usize, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

This method hints that the Deserialize type is expecting a fixed size array. This allows deserializers to parse arrays that aren't tagged as arrays.

fn deserialize_bytes<V>(&mut self, visitor: V) -> Result<V::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 deserialize_map<V>(&mut self, visitor: V) -> Result<V::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 deserialize_unit_struct<V>(&mut self, _: &'static str, visitor: V) -> Result<V::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 deserialize_tuple_struct<V>(&mut self, _: &'static str, _: usize, visitor: V) -> Result<V::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 deserialize_struct<V>(&mut self, _: &'static str, _: &'static [&'static str], visitor: V) -> Result<V::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 deserialize_struct_field<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

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

fn deserialize_tuple<V>(&mut self, _: usize, visitor: V) -> Result<V::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 deserialize_ignored_any<V>(&mut self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor

This method hints that the Deserialize type needs to deserialize a value whose type doesn't matter because it is ignored.