Trait IntoDeserializer

pub trait IntoDeserializer<'de, E: Error = Error> {
    type Deserializer: Deserializer<'de, Error = E>;

    // Required method
    fn into_deserializer(self) -> Self::Deserializer;
}

Expand description

Converts an existing value into a Deserializer from which other values can be deserialized.

§Lifetime

The 'de lifetime of this trait is the lifetime of data that may be borrowed from the resulting Deserializer. See the page Understanding deserializer lifetimes for a more detailed explanation of these lifetimes.

§Example

use serde::de::{value, Deserialize, IntoDeserializer};
use serde_derive::Deserialize;
use std::str::FromStr;

#[derive(Deserialize)]
enum Setting {
    On,
    Off,
}

impl FromStr for Setting {
    type Err = value::Error;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        Self::deserialize(s.into_deserializer())
    }
}

Required Associated Types§

type Deserializer: Deserializer<'de, Error = E>

The type of the deserializer being converted into.

Required Methods§

fn into_deserializer(self) -> Self::Deserializer

Convert this value into a deserializer.

Implementations on Foreign Types§

impl<'de, 'a, E> IntoDeserializer<'de, E> for &'a str
where E: Error,

type Deserializer = StrDeserializer<'a, E>

fn into_deserializer(self) -> StrDeserializer<'a, E>

impl<'de, 'a, E> IntoDeserializer<'de, E> for &'a [u8]
where E: Error,

type Deserializer = BytesDeserializer<'a, E>

fn into_deserializer(self) -> BytesDeserializer<'a, E>

impl<'de, 'a, E> IntoDeserializer<'de, E> for Cow<'a, str>
where E: Error,

Available on crate features std or alloc only.

type Deserializer = CowStrDeserializer<'a, E>

fn into_deserializer(self) -> CowStrDeserializer<'a, E>

impl<'de, E> IntoDeserializer<'de, E> for bool
where E: Error,

type Deserializer = BoolDeserializer<E>

fn into_deserializer(self) -> BoolDeserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for char
where E: Error,

type Deserializer = CharDeserializer<E>

fn into_deserializer(self) -> CharDeserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for f32
where E: Error,

type Deserializer = F32Deserializer<E>

fn into_deserializer(self) -> F32Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for f64
where E: Error,

type Deserializer = F64Deserializer<E>

fn into_deserializer(self) -> F64Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for i8
where E: Error,

type Deserializer = I8Deserializer<E>

fn into_deserializer(self) -> I8Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for i16
where E: Error,

type Deserializer = I16Deserializer<E>

fn into_deserializer(self) -> I16Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for i32
where E: Error,

type Deserializer = I32Deserializer<E>

fn into_deserializer(self) -> I32Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for i64
where E: Error,

type Deserializer = I64Deserializer<E>

fn into_deserializer(self) -> I64Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for i128
where E: Error,

type Deserializer = I128Deserializer<E>

fn into_deserializer(self) -> I128Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for isize
where E: Error,

type Deserializer = IsizeDeserializer<E>

fn into_deserializer(self) -> IsizeDeserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for u8
where E: Error,

type Deserializer = U8Deserializer<E>

fn into_deserializer(self) -> U8Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for u16
where E: Error,

type Deserializer = U16Deserializer<E>

fn into_deserializer(self) -> U16Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for u32
where E: Error,

type Deserializer = U32Deserializer<E>

fn into_deserializer(self) -> U32Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for u64
where E: Error,

type Deserializer = U64Deserializer<E>

fn into_deserializer(self) -> U64Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for u128
where E: Error,

type Deserializer = U128Deserializer<E>

fn into_deserializer(self) -> U128Deserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for ()
where E: Error,

type Deserializer = UnitDeserializer<E>

fn into_deserializer(self) -> UnitDeserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for usize
where E: Error,

type Deserializer = UsizeDeserializer<E>

fn into_deserializer(self) -> UsizeDeserializer<E>

impl<'de, E> IntoDeserializer<'de, E> for String
where E: Error,

Available on crate features std or alloc only.

type Deserializer = StringDeserializer<E>

fn into_deserializer(self) -> StringDeserializer<E>

impl<'de, K, V, E> IntoDeserializer<'de, E> for BTreeMap<K, V>
where K: IntoDeserializer<'de, E> + Eq + Ord, V: IntoDeserializer<'de, E>, E: Error,

Available on crate features std or alloc only.

type Deserializer = MapDeserializer<'de, <BTreeMap<K, V> as IntoIterator>::IntoIter, E>

fn into_deserializer(self) -> Self::Deserializer

impl<'de, K, V, S, E> IntoDeserializer<'de, E> for HashMap<K, V, S>
where K: IntoDeserializer<'de, E> + Eq + Hash, V: IntoDeserializer<'de, E>, S: BuildHasher, E: Error,

Available on crate feature std only.

type Deserializer = MapDeserializer<'de, <HashMap<K, V, S> as IntoIterator>::IntoIter, E>

fn into_deserializer(self) -> Self::Deserializer

impl<'de, T, E> IntoDeserializer<'de, E> for BTreeSet<T>
where T: IntoDeserializer<'de, E> + Eq + Ord, E: Error,

Available on crate features std or alloc only.

type Deserializer = SeqDeserializer<<BTreeSet<T> as IntoIterator>::IntoIter, E>

fn into_deserializer(self) -> Self::Deserializer

impl<'de, T, E> IntoDeserializer<'de, E> for Vec<T>
where T: IntoDeserializer<'de, E>, E: Error,

Available on crate features std or alloc only.

type Deserializer = SeqDeserializer<<Vec<T> as IntoIterator>::IntoIter, E>

fn into_deserializer(self) -> Self::Deserializer

impl<'de, T, S, E> IntoDeserializer<'de, E> for HashSet<T, S>
where T: IntoDeserializer<'de, E> + Eq + Hash, S: BuildHasher, E: Error,

Available on crate feature std only.

type Deserializer = SeqDeserializer<<HashSet<T, S> as IntoIterator>::IntoIter, E>

fn into_deserializer(self) -> Self::Deserializer

Implementors§