Trait RuleExt 

pub trait RuleExt {
    // Required method
    fn downcast_ref<T: 'static>(&self) -> Option<&T>;
}

Extension trait to add downcasting capabilities to Rule

Required Methods

fn downcast_ref<T: 'static>(&self) -> Option<&T>

Dyn Compatibility

This trait is not dyn compatible.

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

Implementations on Foreign Types

impl<R: Rule + 'static> RuleExt for Box<R>

fn downcast_ref<T: 'static>(&self) -> Option<&T>

Implementors