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use effectful::{
    effective::{Canonical, Effective},
    environment::Environment,
    SendSync,
};

use crate::{
    any::AnyTrait,
    protocol::{visitor::VisitResult, DynVisitor},
    walk::DynWalkerObjSafe,
};

// pub mod array;
pub mod bool;
pub mod value;
// pub mod option;

// pub mod variant;
pub mod r#enum;
pub mod r#struct;
pub mod tag_name;

#[derive(Default, SendSync)]
#[non_exhaustive]
pub struct NoopVisitor;

impl NoopVisitor {
    pub fn new() -> Self {
        Self
    }
}

impl<'lt, 'ctx: 'lt> AnyTrait<'lt, 'ctx> for NoopVisitor {
}

impl NoopVisitor {
    pub fn walk_dyn<'ctx: 'd, 'walker: 'e, 'd: 'walker, 'e, E: Environment>(
        walker: DynWalkerObjSafe<'walker, 'd, 'ctx, E>,
    ) -> Canonical<'e, VisitResult, E> {
        E::value(NoopVisitor::new())
            .update_map(walker, |walker, noop| {
                walker
                    .walk(DynVisitor(noop))
                    .map((), |_, x| x.to_continue().into())
                    .cast()
            })
            .map((), |_, (_, x)| x)
            .cast()
    }
}