Trait CacheKey

pub trait CacheKey<W> {
    // Required method
    fn cache_key(&self, widget: &W) -> Option<u64>;
}

Expand description

Cache key strategy for a widget.

Required Methods§

Return a cache key for the widget, or None to disable key-based invalidation.

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".