Struct NullableTilde 

pub struct NullableTilde<T>(pub Option<T>);

Serialize None as YAML tilde (~) while otherwise behaving like Option<T>.

Some(value) is serialized transparently as value. None is serialized as ~ instead of the serializer’s regular null spelling. Deserialization delegates to Option<T>, so ~, null, and empty YAML values all become NullableTilde(None).

use serde::Serialize;
use serde_saphyr::NullableTilde;

#[derive(Serialize)]
struct Config {
    maybe: NullableTilde<String>,
}

let cfg = Config { maybe: NullableTilde(None) };
let yaml = serde_saphyr::to_string(&cfg).unwrap();
assert_eq!(yaml, "maybe: ~\n");

Tuple Fields

0: Option<T>

Trait Implementations

impl<T: Clone> Clone for NullableTilde<T>

fn clone(&self) -> NullableTilde<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for NullableTilde<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de, T: Deserialize<'de>> Deserialize<'de> for NullableTilde<T>

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl<T: Eq> Eq for NullableTilde<T>

impl<T: PartialEq> PartialEq for NullableTilde<T>

fn eq(&self, other: &NullableTilde<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Serialize> Serialize for NullableTilde<T>

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

Serialize this value into the given Serde serializer.

impl<T: PartialEq> StructuralPartialEq for NullableTilde<T>