Enum MergingUnsetBuilder 

pub enum MergingUnsetBuilder<T> {
    Unset,
    Set(T),
}

Implementation helper for building a type that supports merging in itself, but needs to represent unset.

See MergingWithUnset for more info.

Variants

Unset

Set(T)

Trait Implementations

impl<T: Clone> Clone for MergingUnsetBuilder<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> ConfigurationBuilder for MergingUnsetBuilder<T>

where T: MergingWithUnset + DeserializeOwned,

type Target = <T as MergingWithUnset>::Target

The target that will be converted into. See Configuration.

fn merge(self, other: Self) -> Self

Combines two builders recursively, preferring self’s data, if present.

fn try_build(self) -> Result<Self::Target, Error>

This will probably delegate to TryInto but allows it to be implemented for types foreign to the library.

fn contains_non_secret_data(&self) -> Result<bool, UnexpectedSecret>

Called recursively on each field, aiming to hit all SecretBuilders. This is only called when Source::allows_secrets is false.

impl<T: Debug> Debug for MergingUnsetBuilder<T>

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

Formats the value using the given formatter.

impl<T> Default for MergingUnsetBuilder<T>

fn default() -> MergingUnsetBuilder<T>

Returns the “default value” for a type.

impl<'de, T> Deserialize<'de> for MergingUnsetBuilder<T>

where T: Deserialize<'de>,

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

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.