Trait Serialize 

pub trait Serialize {
    // Required method
    fn serialize<S>(
        &self,
        serializer: S,
    ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>
       where S: Serializer;
}

A data structure that can be serialized into any data format supported by Serde.

Serde provides Serialize implementations for many Rust primitive and standard library types. The complete list is here. All of these can be serialized using Serde out of the box.

Additionally, Serde provides a procedural macro called serde_derive to automatically generate Serialize implementations for structs and enums in your program. See the derive section of the manual for how to use this.

In rare cases it may be necessary to implement Serialize manually for some type in your program. See the Implementing Serialize section of the manual for more about this.

Third-party crates may provide Serialize implementations for types that they expose. For example the linked-hash-map crate provides a LinkedHashMap<K, V> type that is serializable by Serde because the crate provides an implementation of Serialize for it.

Required Methods

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

See the Implementing Serialize section of the manual for more information about how to implement this method.

use serde::ser::{Serialize, SerializeStruct, Serializer};

struct Person {
    name: String,
    age: u8,
    phones: Vec<String>,
}

// This is what #[derive(Serialize)] would generate.
impl Serialize for Person {
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        let mut s = serializer.serialize_struct("Person", 3)?;
        s.serialize_field("name", &self.name)?;
        s.serialize_field("age", &self.age)?;
        s.serialize_field("phones", &self.phones)?;
        s.end()
    }
}

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Serialize for bool

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for char

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for f32

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for f64

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for i8

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for i16

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for i32

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for i64

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for i128

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for isize

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for str

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for u8

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for u16

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for u32

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for u64

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for u128

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for ()

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl Serialize for usize

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<'a, T> Serialize for &'a T

where T: Serialize + ?Sized,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<'a, T> Serialize for &'a mut T

where T: Serialize + ?Sized,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1> Serialize for (T0, T1)

where T0: Serialize, T1: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2> Serialize for (T0, T1, T2)

where T0: Serialize, T1: Serialize, T2: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3> Serialize for (T0, T1, T2, T3)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4> Serialize for (T0, T1, T2, T3, T4)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5> Serialize for (T0, T1, T2, T3, T4, T5)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5, T6> Serialize for (T0, T1, T2, T3, T4, T5, T6)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize, T6: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5, T6, T7> Serialize for (T0, T1, T2, T3, T4, T5, T6, T7)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize, T6: Serialize, T7: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8> Serialize for (T0, T1, T2, T3, T4, T5, T6, T7, T8)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize, T6: Serialize, T7: Serialize, T8: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> Serialize for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize, T6: Serialize, T7: Serialize, T8: Serialize, T9: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> Serialize for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize, T6: Serialize, T7: Serialize, T8: Serialize, T9: Serialize, T10: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> Serialize for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize, T6: Serialize, T7: Serialize, T8: Serialize, T9: Serialize, T10: Serialize, T11: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> Serialize for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize, T6: Serialize, T7: Serialize, T8: Serialize, T9: Serialize, T10: Serialize, T11: Serialize, T12: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13> Serialize for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize, T6: Serialize, T7: Serialize, T8: Serialize, T9: Serialize, T10: Serialize, T11: Serialize, T12: Serialize, T13: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14> Serialize for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize, T6: Serialize, T7: Serialize, T8: Serialize, T9: Serialize, T10: Serialize, T11: Serialize, T12: Serialize, T13: Serialize, T14: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> Serialize for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15)

where T0: Serialize, T1: Serialize, T2: Serialize, T3: Serialize, T4: Serialize, T5: Serialize, T6: Serialize, T7: Serialize, T8: Serialize, T9: Serialize, T10: Serialize, T11: Serialize, T12: Serialize, T13: Serialize, T14: Serialize, T15: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 0]

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 1]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 2]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 3]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 4]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 5]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 6]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 7]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 8]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 9]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 10]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 11]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 12]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 13]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 14]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 15]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 16]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 17]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 18]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 19]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 20]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 21]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 22]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 23]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 24]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 25]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 26]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 27]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 28]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 29]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 30]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 31]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T; 32]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for [T]

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

impl<T> Serialize for (T,)

where T: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Implementors

impl Serialize for IpAddr

impl Serialize for SocketAddr

impl Serialize for CStr

impl Serialize for CString

impl Serialize for OsStr

impl Serialize for OsString

impl Serialize for Ipv4Addr

impl Serialize for Ipv6Addr

impl Serialize for SocketAddrV4

impl Serialize for SocketAddrV6

impl Serialize for NonZero<i8>

impl Serialize for NonZero<i16>

impl Serialize for NonZero<i32>

impl Serialize for NonZero<i64>

impl Serialize for NonZero<i128>

impl Serialize for NonZero<isize>

impl Serialize for NonZero<u8>

impl Serialize for NonZero<u16>

impl Serialize for NonZero<u32>

impl Serialize for NonZero<u64>

impl Serialize for NonZero<u128>

impl Serialize for NonZero<usize>

impl Serialize for Path

impl Serialize for PathBuf

impl Serialize for AtomicBool

impl Serialize for AtomicI8

impl Serialize for AtomicI16

impl Serialize for AtomicI32

impl Serialize for AtomicI64

impl Serialize for AtomicIsize

impl Serialize for AtomicU8

impl Serialize for AtomicU16

impl Serialize for AtomicU32

impl Serialize for AtomicU64

impl Serialize for AtomicUsize

impl Serialize for Duration

impl Serialize for SystemTime

impl Serialize for String

impl<'a> Serialize for Arguments<'a>

impl<'a, T> Serialize for Cow<'a, T>

where T: Serialize + ToOwned + ?Sized,

impl<Idx> Serialize for Range<Idx>

where Idx: Serialize,

impl<Idx> Serialize for RangeFrom<Idx>

where Idx: Serialize,

impl<Idx> Serialize for RangeInclusive<Idx>

where Idx: Serialize,

impl<Idx> Serialize for RangeTo<Idx>

where Idx: Serialize,

impl<K, V> Serialize for BTreeMap<K, V>

where K: Serialize, V: Serialize,

impl<K, V, H> Serialize for HashMap<K, V, H>

where K: Serialize, V: Serialize,

impl<T> Serialize for Bound<T>

where T: Serialize,

impl<T> Serialize for Option<T>

where T: Serialize,

impl<T> Serialize for Cell<T>

where T: Serialize + Copy,

impl<T> Serialize for RefCell<T>

where T: Serialize + ?Sized,

impl<T> Serialize for Reverse<T>

where T: Serialize,

impl<T> Serialize for BTreeSet<T>

where T: Serialize,

impl<T> Serialize for BinaryHeap<T>

where T: Serialize,

impl<T> Serialize for LinkedList<T>

where T: Serialize,

impl<T> Serialize for VecDeque<T>

where T: Serialize,

impl<T> Serialize for Saturating<T>

where T: Serialize,

impl<T> Serialize for Wrapping<T>

where T: Serialize,

impl<T> Serialize for Rc<T>

where T: Serialize + ?Sized,

This impl requires the "rc" Cargo feature of Serde.

Serializing a data structure containing Rc will serialize a copy of the contents of the Rc each time the Rc is referenced within the data structure. Serialization will not attempt to deduplicate these repeated data.

impl<T> Serialize for serde::lib::core::rc::Weak<T>

where T: Serialize + ?Sized,

This impl requires the "rc" Cargo feature of Serde.

impl<T> Serialize for Arc<T>

where T: Serialize + ?Sized,

This impl requires the "rc" Cargo feature of Serde.

Serializing a data structure containing Arc will serialize a copy of the contents of the Arc each time the Arc is referenced within the data structure. Serialization will not attempt to deduplicate these repeated data.

impl<T> Serialize for Mutex<T>

where T: Serialize + ?Sized,

impl<T> Serialize for RwLock<T>

where T: Serialize + ?Sized,

impl<T> Serialize for serde::lib::core::sync::Weak<T>

where T: Serialize + ?Sized,

This impl requires the "rc" Cargo feature of Serde.

impl<T> Serialize for Box<T>

where T: Serialize + ?Sized,

impl<T> Serialize for PhantomData<T>

where T: ?Sized,

impl<T> Serialize for Vec<T>

where T: Serialize,

impl<T, E> Serialize for Result<T, E>

where T: Serialize, E: Serialize,

impl<T, H> Serialize for HashSet<T, H>

where T: Serialize,