Struct serde_json::value::Deserializer
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[src]
pub struct Deserializer { /* fields omitted */ }
Creates a serde::Deserializer
from a json::Value
object.
Methods
impl Deserializer
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fn new(value: Value) -> Deserializer
Creates a new deserializer instance for deserializing the specified JSON value.
Trait Implementations
impl Deserializer for Deserializer
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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)
. Read more
fn deserialize_enum<V>(&mut self,
_name: &str,
_variants: &'static [&'static str],
visitor: V)
-> Result<V::Value, Error> where V: EnumVisitor
_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. Read more
fn deserialize_newtype_struct<V>(&mut self,
_name: &'static str,
visitor: V)
-> Result<V::Value, Self::Error> where V: Visitor
_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. Read more
fn deserialize_bool<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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
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
. Read more
fn deserialize_u8<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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
. Read more
fn deserialize_u16<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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
. Read more
fn deserialize_u32<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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
. Read more
fn deserialize_u64<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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
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
. Read more
fn deserialize_i8<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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
. Read more
fn deserialize_i16<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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
. Read more
fn deserialize_i32<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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
. Read more
fn deserialize_i64<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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
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
. Read more
fn deserialize_f64<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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
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
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
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
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
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. Read more
fn deserialize_seq_fixed_size<__V>(&mut self,
_: usize,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
_: 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. Read more
fn deserialize_bytes<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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. Read more
fn deserialize_map<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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. Read more
fn deserialize_unit_struct<__V>(&mut self,
_: &'static str,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
_: &'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. Read more
fn deserialize_tuple_struct<__V>(&mut self,
_: &'static str,
_: usize,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
_: &'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. Read more
fn deserialize_struct<__V>(&mut self,
_: &'static str,
_: &'static [&'static str],
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
_: &'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. Read more
fn deserialize_struct_field<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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. Read more
fn deserialize_tuple<__V>(&mut self,
_: usize,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
_: 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. Read more
fn deserialize_ignored_any<__V>(&mut self,
visitor: __V)
-> Result<__V::Value, Self::Error> where __V: Visitor
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. Read more