Trait smart_config::de::WellKnownOption

pub trait WellKnownOption: WellKnown { }

Expand description

Marker trait for types that use a conventional Optional deserializer for Option<Self>.

It’s usually sound to implement this trait for custom types together with WellKnown, unless:

The type needs custom null coercion logic (e.g., coercing some structured values to null). In this case, implement CustomKnownOption instead. Note that WellKnownOption is tied to it via a blanket implementation.
It doesn’t make sense to have optional type params.

Object Safety§

This trait is not object safe.

Implementations on Foreign Types§

impl WellKnownOption for IpAddr

impl WellKnownOption for SocketAddr

impl WellKnownOption for bool

impl WellKnownOption for f32

impl WellKnownOption for f64

impl WellKnownOption for i8

impl WellKnownOption for i16

impl WellKnownOption for i32

impl WellKnownOption for i64

impl WellKnownOption for i128

impl WellKnownOption for isize

impl WellKnownOption for u8

impl WellKnownOption for u16

impl WellKnownOption for u32

impl WellKnownOption for u64

impl WellKnownOption for u128

impl WellKnownOption for usize

impl WellKnownOption for String

impl WellKnownOption for Ipv4Addr

impl WellKnownOption for Ipv6Addr

impl WellKnownOption for SocketAddrV4

impl WellKnownOption for SocketAddrV6

impl WellKnownOption for PathBuf

impl WellKnownOption for NonZeroI8

impl WellKnownOption for NonZeroI16

impl WellKnownOption for NonZeroI32

impl WellKnownOption for NonZeroI64

impl WellKnownOption for NonZeroIsize

impl WellKnownOption for NonZeroU8

impl WellKnownOption for NonZeroU16

impl WellKnownOption for NonZeroU32

impl WellKnownOption for NonZeroU64

impl WellKnownOption for NonZeroUsize

impl WellKnownOption for H128

Available on crate feature primitive-types only.

impl WellKnownOption for H160

Available on crate feature primitive-types only.

impl WellKnownOption for H256

Available on crate feature primitive-types only.

impl WellKnownOption for H384

Available on crate feature primitive-types only.

impl WellKnownOption for H512

Available on crate feature primitive-types only.

impl WellKnownOption for H768

Available on crate feature primitive-types only.

impl WellKnownOption for U128

Available on crate feature primitive-types only.

impl WellKnownOption for U256

Available on crate feature primitive-types only.

impl WellKnownOption for U512

Available on crate feature primitive-types only.

impl<K, V> WellKnownOption for BTreeMap<K, V>
where K: 'static + Eq + Ord + WellKnown, V: 'static + WellKnown,

impl<K, V, S> WellKnownOption for HashMap<K, V, S>
where K: 'static + Eq + Hash + WellKnown, V: 'static + WellKnown, S: 'static + Default + BuildHasher,

impl<T> WellKnownOption for BTreeSet<T>
where T: Eq + Ord + WellKnown,

impl<T, S> WellKnownOption for HashSet<T, S>
where T: Eq + Hash + WellKnown, S: 'static + Default + BuildHasher,

impl<T: WellKnown> WellKnownOption for Vec<T>

impl<T: WellKnown, const N: usize> WellKnownOption for [T; N]

Implementors§

impl WellKnownOption for SecretString