Trait FeatureFlag 

pub trait FeatureFlag: Send + Sync {
    // Required methods
    async fn is_enabled(&self, key: &str) -> bool;
    async fn is_enabled_for_user(&self, key: &str, user_id: &str) -> bool;
    async fn get_variant(&self, key: &str) -> Option<String>;
}

功能开关 trait (dyn 兼容)

Required Methods

async fn is_enabled(&self, key: &str) -> bool

检查开关是否启用

async fn is_enabled_for_user(&self, key: &str, user_id: &str) -> bool

检查开关是否启用 (带用户上下文)

async fn get_variant(&self, key: &str) -> Option<String>

获取开关变体

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl FeatureFlag for FeatureFlagManager