diff options
Diffstat (limited to 'vendor/chalk-ir-0.87.0/src/visit/binder_impls.rs')
-rw-r--r-- | vendor/chalk-ir-0.87.0/src/visit/binder_impls.rs | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/vendor/chalk-ir-0.87.0/src/visit/binder_impls.rs b/vendor/chalk-ir-0.87.0/src/visit/binder_impls.rs new file mode 100644 index 000000000..709f99044 --- /dev/null +++ b/vendor/chalk-ir-0.87.0/src/visit/binder_impls.rs @@ -0,0 +1,47 @@ +//! This module contains impls of `TypeVisitable` for those types that +//! introduce binders. +//! +//! The more interesting impls of `TypeVisitable` remain in the `visit` module. + +use crate::interner::HasInterner; +use crate::{ + Binders, Canonical, ControlFlow, DebruijnIndex, FnPointer, Interner, TypeVisitable, TypeVisitor, +}; + +impl<I: Interner> TypeVisitable<I> for FnPointer<I> { + fn visit_with<B>( + &self, + visitor: &mut dyn TypeVisitor<I, BreakTy = B>, + outer_binder: DebruijnIndex, + ) -> ControlFlow<B> { + self.substitution + .visit_with(visitor, outer_binder.shifted_in()) + } +} + +impl<T, I: Interner> TypeVisitable<I> for Binders<T> +where + T: HasInterner + TypeVisitable<I>, +{ + fn visit_with<B>( + &self, + visitor: &mut dyn TypeVisitor<I, BreakTy = B>, + outer_binder: DebruijnIndex, + ) -> ControlFlow<B> { + self.value.visit_with(visitor, outer_binder.shifted_in()) + } +} + +impl<I, T> TypeVisitable<I> for Canonical<T> +where + I: Interner, + T: HasInterner<Interner = I> + TypeVisitable<I>, +{ + fn visit_with<B>( + &self, + visitor: &mut dyn TypeVisitor<I, BreakTy = B>, + outer_binder: DebruijnIndex, + ) -> ControlFlow<B> { + self.value.visit_with(visitor, outer_binder.shifted_in()) + } +} |