Struct serde_json::de::Deserializer

pub struct Deserializer<Iter>(_) where Iter: Iterator<Item=Result<u8>>;

A structure that deserializes JSON into Rust values.

Methods

impl<Iter> Deserializer<Iter> where Iter: Iterator<Item=Result<u8>>

fn new(rdr: Iter) -> Self

Creates the JSON parser from an std::iter::Iterator.

fn end(&mut self) -> Result<()>

The Deserializer::end method should be called after a value has been fully deserialized. This allows the Deserializer to validate that the input stream is at the end or that it only has trailing whitespace.

Trait Implementations

impl<Iter> Deserializer for Deserializer<Iter> where Iter: Iterator<Item=Result<u8>>

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> 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> where V: Visitor

Parses a null as a None, and any other values as a Some(...).

fn deserialize_newtype_struct<V>(&mut self, name: &'static str, visitor: V) -> Result<V::Value> where V: Visitor

Parses a newtype struct as the underlying value.

fn deserialize_enum<V>(&mut self, name: &'static str, variants: &'static [&'static str], visitor: V) -> Result<V::Value> where V: EnumVisitor

Parses an enum as an object like {"$KEY":$VALUE}, where $VALUE is either a straight value, a [..], or a {..}.

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.