treaty -


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use mockall::mock;
use treaty::{
    any::{any_trait, TypeName},
    effect::{Effect, Future},
    protocol::visitor::{RequestHint, RequestHintProto, Value, ValueProto, VisitResult},
    protocol::DynWalker,
    Flow,
};

pub type RequestHintFactory =
    for<'a, 'ctx> fn(&'ctx (), DynWalker<'a, 'ctx>) -> VisitResult<DynWalker<'a, 'ctx>>;

mock! {
    pub RequestHintVisitor<E> {
        pub fn request_hint(&mut self) -> RequestHintFactory;
    }
}

any_trait! {
    impl['ctx, E] MockRequestHintVisitor<E> = [
        RequestHintProto<E>
    ] where
        E: Effect,
}

impl<'ctx, E: Effect> RequestHint<'ctx, E> for MockRequestHintVisitor<E> {
    fn request_hint<'a>(
        &'a mut self,
        walker: DynWalker<'a, 'ctx>,
    ) -> Future<'a, VisitResult<DynWalker<'a, 'ctx>>, E> {
        E::ready(self.request_hint()(&(), walker))
    }
}