Struct serde_with::BoolFromInt
source · [−]pub struct BoolFromInt<S: Strictness = Strict>(_);
Expand description
Deserialize a boolean from a number
Deserialize a number (of u8
) and turn it into a boolean.
The adapter supports a Strict
and Flexible
format.
In Strict
mode, the number must be 0
or 1
.
All other values produce an error.
In Flexible
mode, the number any non-zero value is converted to true
.
During serialization only 0
or 1
are ever emitted.
Examples
#[serde_as]
#[derive(Deserialize, Serialize)]
struct Data(#[serde_as(as = "BoolFromInt")] bool);
let data = Data(true);
let j = json!(1);
// Ensure serialization and deserialization produce the expected results
assert_eq!(j, serde_json::to_value(&data).unwrap());
assert_eq!(data, serde_json::from_value(j).unwrap());
// false maps to 0
let data = Data(false);
let j = json!(0);
assert_eq!(j, serde_json::to_value(&data).unwrap());
assert_eq!(data, serde_json::from_value(j).unwrap());
#[serde_as]
#[derive(Deserialize, Serialize)]
struct Flexible(#[serde_as(as = "BoolFromInt<serde_with::formats::Flexible>")] bool);
// Flexible turns any non-zero number into true
let data = Flexible(true);
let j = json!(100);
assert_eq!(data, serde_json::from_value(j).unwrap());
Trait Implementations
sourceimpl<S: Clone + Strictness> Clone for BoolFromInt<S>
impl<S: Clone + Strictness> Clone for BoolFromInt<S>
sourcefn clone(&self) -> BoolFromInt<S>
fn clone(&self) -> BoolFromInt<S>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl<S: Debug + Strictness> Debug for BoolFromInt<S>
impl<S: Debug + Strictness> Debug for BoolFromInt<S>
sourceimpl<S: Default + Strictness> Default for BoolFromInt<S>
impl<S: Default + Strictness> Default for BoolFromInt<S>
sourcefn default() -> BoolFromInt<S>
fn default() -> BoolFromInt<S>
Returns the “default value” for a type. Read more
sourceimpl<'de> DeserializeAs<'de, bool> for BoolFromInt<Strict>
impl<'de> DeserializeAs<'de, bool> for BoolFromInt<Strict>
sourcefn deserialize_as<D>(deserializer: D) -> Result<bool, D::Error> where
D: Deserializer<'de>,
fn deserialize_as<D>(deserializer: D) -> Result<bool, D::Error> where
D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer.
sourceimpl<'de> DeserializeAs<'de, bool> for BoolFromInt<Flexible>
impl<'de> DeserializeAs<'de, bool> for BoolFromInt<Flexible>
sourcefn deserialize_as<D>(deserializer: D) -> Result<bool, D::Error> where
D: Deserializer<'de>,
fn deserialize_as<D>(deserializer: D) -> Result<bool, D::Error> where
D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer.
sourceimpl<STRICTNESS: Strictness> SerializeAs<bool> for BoolFromInt<STRICTNESS>
impl<STRICTNESS: Strictness> SerializeAs<bool> for BoolFromInt<STRICTNESS>
sourcefn serialize_as<S>(source: &bool, serializer: S) -> Result<S::Ok, S::Error> where
S: Serializer,
fn serialize_as<S>(source: &bool, serializer: S) -> Result<S::Ok, S::Error> where
S: Serializer,
Serialize this value into the given Serde serializer.
impl<S: Copy + Strictness> Copy for BoolFromInt<S>
Auto Trait Implementations
impl<S> RefUnwindSafe for BoolFromInt<S> where
S: RefUnwindSafe,
impl<S> Send for BoolFromInt<S> where
S: Send,
impl<S> Sync for BoolFromInt<S> where
S: Sync,
impl<S> Unpin for BoolFromInt<S> where
S: Unpin,
impl<S> UnwindSafe for BoolFromInt<S> where
S: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more