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Explicit TypeVisitable implementations

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This commit is contained in:
Alan Egerton 2022-06-17 12:09:23 +01:00
parent 9ffdc2de8c
commit f66c06f7f2
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7 changed files with 269 additions and 152 deletions
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3
compiler/rustc_infer/src/traits/structural_impls.rs
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@ -2,6 +2,7 @@ use crate::traits;
use crate::traits::project::Normalized;
use rustc_middle::ty;
use rustc_middle::ty::fold::{FallibleTypeFolder, TypeFoldable, TypeVisitor};
use rustc_middle::ty::visit::TypeVisitable;
use std::fmt;
use std::ops::ControlFlow;
@ -68,7 +69,9 @@ impl<'tcx, O: TypeFoldable<'tcx>> TypeFoldable<'tcx> for traits::Obligation<'tcx
param_env: self.param_env.try_fold_with(folder)?,
})
}
}
impl<'tcx, O: TypeVisitable<'tcx>> TypeVisitable<'tcx> for traits::Obligation<'tcx, O> {
fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> {
self.predicate.visit_with(visitor)?;
self.param_env.visit_with(visitor)