Function get_all_rules 

pub fn get_all_rules() -> Vec<&'static Rule<'static>>

Returns a copied Vec of all rules registered with the register_rule macro.

Rules are not guaranteed to be in any particular order.

Example

#[register_rule]
fn identity(expr: &Expression, symbols: &SymbolTable) -> ApplicationResult {
  Ok(Reduction::pure(expr.clone()))
}

fn main() {
  println!("Rules: {:?}", get_all_rules());
}

This will print (if no other rules are registered):

  Rules: [Rule { name: "identity", application: MEM }]

Where MEM is the memory address of the identity function.