Struct LayeredConfig 

pub struct LayeredConfig { /* private fields */ }

Stack of config layers resolved top-down (last layer wins).

Implementations

impl LayeredConfig

pub fn new() -> Self

pub fn push_layer(&mut self, layer: ConfigLayer)

pub fn layer_count(&self) -> usize

pub fn get(&self, key: &str) -> Option<&str>

Resolve key: last layer that has it wins.

pub fn get_or<'a>(&'a self, key: &str, default: &'a str) -> &'a str

pub fn has_key(&self, key: &str) -> bool

pub fn all_keys(&self) -> Vec<String>

All unique keys across all layers.

pub fn pop_layer(&mut self) -> Option<ConfigLayer>

pub fn clear(&mut self)

pub fn flatten(&self) -> HashMap<String, String>

Flatten all layers into a single resolved map.

Trait Implementations

impl Clone for LayeredConfig

fn clone(&self) -> LayeredConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LayeredConfig

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

Formats the value using the given formatter.

impl Default for LayeredConfig

fn default() -> LayeredConfig

Returns the “default value” for a type.