Struct serde_redis::decode::Deserializer

pub struct Deserializer {
    // some fields omitted
}

deserializes Redis Values

Methods

impl Deserializer

fn new(redis_value: Value) -> Result<Deserializer>

fn peek(&self) -> Option<&Value>

Returns a reference to the next value

Some qualification is required on "next value". If processing a subsequence (eg a hashmap returned in a pipeline), and the subsequence has come to an end, None will be returned even though the pipeline itself has additional data. This signals to the current visitor that there are no more values for it. The sequence visitor will continue using the pipeline data.

fn next(&mut self) -> Result<Value>

Return the next value

See the qualification in the peek documentation as to the meaning of "next value".

Unlike peek, this function will continue iterating on values. A value will be returned as long as the current subsequence or root sequence still has Values.

fn completed_set(&mut self)

Notify that current bulk item has been completed (eg map, sequence)

Visitors use this to update the deserializer state.

fn read_string(&mut self) -> Result<String>

Trait Implementations

impl Debug for Deserializer

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

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> where V: Visitor

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

fn deserialize_seq<V>(&mut self, visitor: V) -> Result<V::Value> 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_map<V>(&mut self, visitor: V) -> Result<V::Value> 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_struct_field<V>(&mut self, visitor: V) -> Result<V::Value> 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_ignored_any<V>(&mut self, visitor: V) -> Result<V::Value> where V: Visitor

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

fn deserialize_enum<V>(&mut self, _enum: &'static str, _variants: &'static [&'static str], visitor: V) -> Result<V::Value> 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_option<V>(&mut self, visitor: V) -> Result<V::Value> 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_newtype_struct<V>(&mut self, _name: &'static str, visitor: V) -> Result<V::Value> 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 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_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_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_fixed_size_array<V>(&mut self, _len: 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_unit_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 unit struct. This allows deserializers to a unit struct that aren't tagged as a unit struct.

fn deserialize_tuple_struct<V>(&mut self, _name: &'static str, len: 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, _name: &'static str, _fields: &'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_tuple<V>(&mut self, _len: 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.