Struct FeatureFlagsHandle 

pub struct FeatureFlagsHandle { /* private fields */ }

Thread-safe, mutable handle to FeatureFlags for runtime toggling.

Implementations

impl FeatureFlagsHandle

pub fn new() -> FeatureFlagsHandle

Create a new handle initialized from environment variables.

pub fn is_enabled(&self, feature: Feature) -> bool

Check whether a feature is enabled in this handle.

pub fn enable(&self, feature: Feature)

Enable a feature flag through the handle.

pub fn disable(&self, feature: Feature)

Disable a feature flag through the handle.

pub fn toggle(&self, feature: Feature)

Toggle a feature flag through the handle.

pub fn snapshot(&self) -> FeatureFlags

Take an immutable snapshot of the current feature flags.

Trait Implementations

impl Clone for FeatureFlagsHandle

fn clone(&self) -> FeatureFlagsHandle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FeatureFlagsHandle

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

Formats the value using the given formatter.

impl Default for FeatureFlagsHandle

fn default() -> FeatureFlagsHandle

Returns the “default value” for a type.