pub trait Layers<K: Key>: Copy + Debug {
// Required methods
fn highest_active_key<LS: LayerState>(&self, layer_state: &LS) -> Option<K>;
fn from_iterable<I: IntoIterator<Item = Option<K>>>(
keys: I,
) -> Result<Self, LayersError>;
}
Expand description
Trait for layers of LayeredKey.
Required Methods§
Sourcefn highest_active_key<LS: LayerState>(&self, layer_state: &LS) -> Option<K>
fn highest_active_key<LS: LayerState>(&self, layer_state: &LS) -> Option<K>
Get the highest active key, if any, for the given LayerState.
Sourcefn from_iterable<I: IntoIterator<Item = Option<K>>>(
keys: I,
) -> Result<Self, LayersError>
fn from_iterable<I: IntoIterator<Item = Option<K>>>( keys: I, ) -> Result<Self, LayersError>
Constructs layers; return Err if the iterable has more keys than Layers can store.
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.