Struct EnvFeatureDriver 

#[non_exhaustive]
pub struct EnvFeatureDriver;

Driver that parses feature flags defined in environment variables.

Prefix variable names with FEATURE_ (e.g. FEATURE_NEW_UI=true).

Implementations

impl EnvFeatureDriver

pub fn new() -> Self

Creates a new EnvFeatureDriver.

Trait Implementations

impl Default for EnvFeatureDriver

fn default() -> Self

Returns the “default value” for a type.

impl FeatureDriver for EnvFeatureDriver

fn enabled<'life0, 'life1, 'async_trait>( &'life0 self, flag: &'life1 str, ) -> Pin<Box<dyn Future<Output = Option<bool>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Check if a feature flag is enabled.

fn enabled_for<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, flag: &'life1 str, identifier: &'life2 str, ) -> Pin<Box<dyn Future<Output = Option<bool>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Check if a feature flag is enabled for a specific target identifier.

fn variant<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, flag: &'life1 str, identifier: &'life2 str, ) -> Pin<Box<dyn Future<Output = Option<String>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Retrieve the variation name assigned to a specific target identifier.