dhttp_access/expr/
rule.rs

1use crate::expr::{
2    eval::{BooleanOperator, EvalRuleError, Evaluable},
3    exprs::Exprs,
4};
5
6pub struct Rule<'e, Expr, Action> {
7    exprs: &'e Exprs<BooleanOperator, Expr>,
8    action: Action,
9}
10
11impl<'e, Expr, Action> Rule<'e, Expr, Action> {
12    pub fn new(exprs: &'e Exprs<BooleanOperator, Expr>, action: Action) -> Self {
13        Self { exprs, action }
14    }
15}
16
17impl<State, Expr, E, Action> Evaluable<State> for Rule<'_, Expr, Action>
18where
19    State: ?Sized,
20    Expr: Evaluable<State, Value = Result<bool, E>>,
21    E: EvalRuleError<Action> + Clone,
22    Action: Clone,
23{
24    type Value = Option<Action>;
25
26    fn eval(&self, state: &State) -> Self::Value {
27        match self.exprs.try_eval(state) {
28            Ok(Ok(matched)) => matched.then_some(self.action.clone()),
29            Ok(Err(eval_error)) => eval_error.fallback(self.action.clone()),
30            Err(_invalid_polish) => None,
31        }
32    }
33}
dhttp_access/expr/rule.rs

dhttp_access/expr/
rule.rs
