treaty -


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use crate::{walk::{Walk, WalkOnce, WalkMut}, protocol::VisitorMissingProtocol, Walker, Visitor};

use super::{reference::RefWalker, reference_mut::MutWalker};

impl<'ctx> WalkOnce<'ctx> for &'ctx str {
    type Error = VisitorMissingProtocol;

    type Value = ();

    #[inline]
    fn walk_once(self, visitor: &mut dyn Visitor<'ctx>) -> Result<Self::Value, Self::Error> {
        self.walk(visitor)
    }
}

impl<'borrow, 'ctx> WalkMut<'borrow, 'ctx> for &'ctx str {
    #[inline]
    fn walk_mut(&'borrow mut self, visitor: &mut dyn Visitor<'ctx>) -> Result<Self::Value, Self::Error> {
        self.walk(visitor)
    }
}

impl<'borrow, 'ctx> Walk<'borrow, 'ctx> for &'ctx str {
    #[inline]
    fn walk(&'borrow self, visitor: &mut dyn Visitor<'ctx>) -> Result<Self::Value, Self::Error> {
        let mut walker = RefWalker::new(*self);
        let _ = walker.walk(visitor);
        match walker.into_error() {
            Some(err) => Err(err),
            None => Ok(()),
        }
    }
}

impl<'ctx> WalkOnce<'ctx> for &'ctx mut str {
    type Error = VisitorMissingProtocol;

    type Value = ();

    #[inline]
    fn walk_once(self, visitor: &mut dyn Visitor<'ctx>) -> Result<Self::Value, Self::Error> {
        let mut walker = MutWalker::new(self);
        let _ = walker.walk(visitor);
        match walker.into_error() {
            Some(err) => Err(err),
            None => Ok(()),
        }
    }
}

impl<'ctx> WalkMut<'ctx, 'ctx> for &'ctx mut str {
    #[inline]
    fn walk_mut(&'ctx mut self, visitor: &mut dyn Visitor<'ctx>) -> Result<Self::Value, Self::Error> {
        let mut walker = MutWalker::new(*self);
        let _ = walker.walk(visitor);
        match walker.into_error() {
            Some(err) => Err(err),
            None => Ok(()),
        }
    }
}

impl<'ctx> Walk<'ctx, 'ctx> for &'ctx mut str {
    #[inline]
    fn walk(&'ctx self, visitor: &mut dyn Visitor<'ctx>) -> Result<Self::Value, Self::Error> {
        let mut walker = RefWalker::new(*self);
        let _ = walker.walk(visitor);
        match walker.into_error() {
            Some(err) => Err(err),
            None => Ok(()),
        }
    }
}