Struct LayeredSource 

pub struct LayeredSource { /* private fields */ }

A configuration source that layers multiple sources with priority.

Later sources override earlier sources when keys conflict.

Implementations

impl LayeredSource

pub fn new() -> Self

Create a new layered source.

pub fn with_source<S: Source + 'static>(self, source: S) -> Self

Add a source to the layer (lower priority than sources added later).

pub fn add_boxed(self, source: Box<dyn Source>) -> Self

Add a boxed source to the layer.

Trait Implementations

impl Source for LayeredSource

fn load<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<ConfigValue>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

👎Deprecated since 0.4.0: Use the Loader trait instead. Source will be removed in a future version.

Load configuration data from this source.

fn name(&self) -> &str

👎Deprecated since 0.4.0: Use the Loader trait instead. Source will be removed in a future version.

Get a human-readable name for this source (used in error messages).

impl Default for LayeredSource

fn default() -> Self

Returns the “default value” for a type.