ferrum_plugin

Trait Pluggable

Source 
pub trait Pluggable<A: UnsafeAnyExt + ?Sized = dyn UnsafeAny> {
    // Provided methods
    fn get<'a, P: Plugin<Self>>(&'a mut self) -> Result<P::Value, P::Error>
       where P::Value: Clone + Any + Implements<A>,
             Self: Extensible<A>,
             A: 'a { ... }
    fn get_ref<'a, P: Plugin<Self>>(&'a mut self) -> Result<&P::Value, P::Error>
       where P::Value: Any + Implements<A>,
             Self: Extensible<A>,
             A: 'a { ... }
    fn get_mut<'a, P: Plugin<Self>>(
        &'a mut self,
    ) -> Result<&mut P::Value, P::Error>
       where P::Value: Any + Implements<A>,
             Self: Extensible<A>,
             A: 'a { ... }
    fn compute<P: Plugin<Self>>(&mut self) -> Result<P::Value, P::Error> { ... }
}
Expand description

An interface for plugins that cache values between calls.

Provided Methods§

Source

fn get<'a, P: Plugin<Self>>(&'a mut self) -> Result<P::Value, P::Error>
where P::Value: Clone + Any + Implements<A>, Self: Extensible<A>, A: 'a,

Return a copy of the plugin’s produced value.

The plugin will be created if it doesn’t exist already. If plugin creation fails, an error is returned.

P is the plugin type.

Source

fn get_ref<'a, P: Plugin<Self>>(&'a mut self) -> Result<&P::Value, P::Error>
where P::Value: Any + Implements<A>, Self: Extensible<A>, A: 'a,

Return a reference to the plugin’s produced value.

The plugin will be created if it doesn’t exist already. If plugin creation fails an error is returned.

P is the plugin type.

Source

fn get_mut<'a, P: Plugin<Self>>(&'a mut self) -> Result<&mut P::Value, P::Error>
where P::Value: Any + Implements<A>, Self: Extensible<A>, A: 'a,

Return a mutable reference to the plugin’s produced value.

The plugin will be created if it doesn’t exist already. If plugin creation fail an error is returned.

P is the plugin type.

Source

fn compute<P: Plugin<Self>>(&mut self) -> Result<P::Value, P::Error>

Create and evaluate a once-off instance of a plugin.

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§