Struct serde_json::value::Serializer

pub struct Serializer;

Serializer whose output is a Value.

This is the serializer that backs serde_json::to_value. Unlike the main serde_json serializer which goes from some serializable value of type T to JSON text, this one goes from T to serde_json::Value.

The to_value function is implementable as:

use serde::Serialize;
use serde_json::{Error, Value};

pub fn to_value<T>(input: T) -> Result<Value, Error>
where
    T: Serialize,
{
    input.serialize(serde_json::value::Serializer)
}

Trait Implementations

impl Serializer for Serializer

type Ok = Value

The output type produced by this Serializer during successful serialization. Most serializers that produce text or binary output should set Ok = () and serialize into an io::Write or buffer contained within the Serializer instance. Serializers that build in-memory data structures may be simplified by using Ok to propagate the data structure around.

type Error = Error

The error type when some error occurs during serialization.

type SerializeSeq = SerializeVec

Type returned from serialize_seq for serializing the content of the sequence.

type SerializeTuple = SerializeVec

Type returned from serialize_tuple for serializing the content of the tuple.

type SerializeTupleStruct = SerializeVec

Type returned from serialize_tuple_struct for serializing the content of the tuple struct.

type SerializeTupleVariant = SerializeTupleVariant

Type returned from serialize_tuple_variant for serializing the content of the tuple variant.

type SerializeMap = SerializeMap

Type returned from serialize_map for serializing the content of the map.

type SerializeStruct = SerializeMap

Type returned from serialize_struct for serializing the content of the struct.

type SerializeStructVariant = SerializeStructVariant

Type returned from serialize_struct_variant for serializing the content of the struct variant.

fn serialize_bool(self, value: bool) -> Result<Value>

Serialize a bool value.

fn serialize_i8(self, value: i8) -> Result<Value>

Serialize an i8 value.

fn serialize_i16(self, value: i16) -> Result<Value>

Serialize an i16 value.

fn serialize_i32(self, value: i32) -> Result<Value>

Serialize an i32 value.

fn serialize_i64(self, value: i64) -> Result<Value>

Serialize an i64 value.

fn serialize_i128(self, value: i128) -> Result<Value>

Serialize an i128 value.

fn serialize_u8(self, value: u8) -> Result<Value>

Serialize a u8 value.

fn serialize_u16(self, value: u16) -> Result<Value>

Serialize a u16 value.

fn serialize_u32(self, value: u32) -> Result<Value>

Serialize a u32 value.

fn serialize_u64(self, value: u64) -> Result<Value>

Serialize a u64 value.

fn serialize_u128(self, value: u128) -> Result<Value>

Serialize a u128 value.

fn serialize_f32(self, float: f32) -> Result<Value>

Serialize an f32 value.

fn serialize_f64(self, float: f64) -> Result<Value>

Serialize an f64 value.

fn serialize_char(self, value: char) -> Result<Value>

Serialize a character.

fn serialize_str(self, value: &str) -> Result<Value>

Serialize a &str.

fn serialize_bytes(self, value: &[u8]) -> Result<Value>

Serialize a chunk of raw byte data.

fn serialize_unit(self) -> Result<Value>

Serialize a () value.

fn serialize_unit_struct(self, _name: &'static str) -> Result<Value>

Serialize a unit struct like struct Unit or PhantomData<T>.

fn serialize_unit_variant( self, _name: &'static str, _variant_index: u32, variant: &'static str, ) -> Result<Value>

Serialize a unit variant like E::A in enum E { A, B }.

fn serialize_newtype_struct<T>( self, _name: &'static str, value: &T, ) -> Result<Value>

where T: ?Sized + Serialize,

Serialize a newtype struct like struct Millimeters(u8).

fn serialize_newtype_variant<T>( self, _name: &'static str, _variant_index: u32, variant: &'static str, value: &T, ) -> Result<Value>

where T: ?Sized + Serialize,

Serialize a newtype variant like E::N in enum E { N(u8) }.

fn serialize_none(self) -> Result<Value>

Serialize a None value.

fn serialize_some<T>(self, value: &T) -> Result<Value>

where T: ?Sized + Serialize,

Serialize a Some(T) value.

fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq>

Begin to serialize a variably sized sequence. This call must be followed by zero or more calls to serialize_element, then a call to end.

fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple>

Begin to serialize a statically sized sequence whose length will be known at deserialization time without looking at the serialized data. This call must be followed by zero or more calls to serialize_element, then a call to end.

fn serialize_tuple_struct( self, _name: &'static str, len: usize, ) -> Result<Self::SerializeTupleStruct>

Begin to serialize a tuple struct like struct Rgb(u8, u8, u8). This call must be followed by zero or more calls to serialize_field, then a call to end.

fn serialize_tuple_variant( self, _name: &'static str, _variant_index: u32, variant: &'static str, len: usize, ) -> Result<Self::SerializeTupleVariant>

Begin to serialize a tuple variant like E::T in enum E { T(u8, u8) }. This call must be followed by zero or more calls to serialize_field, then a call to end.

fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap>

Begin to serialize a map. This call must be followed by zero or more calls to serialize_key and serialize_value, then a call to end.

fn serialize_struct( self, name: &'static str, len: usize, ) -> Result<Self::SerializeStruct>

Begin to serialize a struct like struct Rgb { r: u8, g: u8, b: u8 }. This call must be followed by zero or more calls to serialize_field, then a call to end.

fn serialize_struct_variant( self, _name: &'static str, _variant_index: u32, variant: &'static str, _len: usize, ) -> Result<Self::SerializeStructVariant>

Begin to serialize a struct variant like E::S in enum E { S { r: u8, g: u8, b: u8 } }. This call must be followed by zero or more calls to serialize_field, then a call to end.

fn collect_str<T>(self, value: &T) -> Result<Value>

where T: ?Sized + Display,

Serialize a string produced by an implementation of Display.

fn collect_seq<I>(self, iter: I) -> Result<Self::Ok, Self::Error>

where I: IntoIterator, <I as IntoIterator>::Item: Serialize,

Collect an iterator as a sequence.

fn collect_map<K, V, I>(self, iter: I) -> Result<Self::Ok, Self::Error>

where K: Serialize, V: Serialize, I: IntoIterator<Item = (K, V)>,

Collect an iterator as a map.

fn is_human_readable(&self) -> bool

Determine whether Serialize implementations should serialize in human-readable form.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

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