diff options
Diffstat (limited to 'compiler/rustc_trait_selection/src/traits/error_reporting/method_chain.rs')
-rw-r--r-- | compiler/rustc_trait_selection/src/traits/error_reporting/method_chain.rs | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/method_chain.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/method_chain.rs deleted file mode 100644 index 7e1dba4ed26..00000000000 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/method_chain.rs +++ /dev/null @@ -1,102 +0,0 @@ -use crate::infer::InferCtxt; - -use rustc_infer::infer::ObligationEmittingRelation; -use rustc_infer::traits::PredicateObligations; -use rustc_middle::ty::error::TypeError; -use rustc_middle::ty::relate::{self, Relate, RelateResult, TypeRelation}; -use rustc_middle::ty::{self, Ty, TyCtxt}; - -pub struct CollectAllMismatches<'a, 'tcx> { - pub infcx: &'a InferCtxt<'tcx>, - pub param_env: ty::ParamEnv<'tcx>, - pub errors: Vec<TypeError<'tcx>>, -} - -impl<'a, 'tcx> TypeRelation<'tcx> for CollectAllMismatches<'a, 'tcx> { - fn tag(&self) -> &'static str { - "CollectAllMismatches" - } - - fn tcx(&self) -> TyCtxt<'tcx> { - self.infcx.tcx - } - - fn param_env(&self) -> ty::ParamEnv<'tcx> { - self.param_env - } - - fn a_is_expected(&self) -> bool { - true - } - - fn relate_with_variance<T: Relate<'tcx>>( - &mut self, - _: ty::Variance, - _: ty::VarianceDiagInfo<'tcx>, - a: T, - b: T, - ) -> RelateResult<'tcx, T> { - self.relate(a, b) - } - - fn regions( - &mut self, - a: ty::Region<'tcx>, - _b: ty::Region<'tcx>, - ) -> RelateResult<'tcx, ty::Region<'tcx>> { - Ok(a) - } - - fn tys(&mut self, a: Ty<'tcx>, b: Ty<'tcx>) -> RelateResult<'tcx, Ty<'tcx>> { - self.infcx.probe(|_| { - if a.is_ty_var() || b.is_ty_var() { - Ok(a) - } else { - self.infcx.super_combine_tys(self, a, b).or_else(|e| { - self.errors.push(e); - Ok(a) - }) - } - }) - } - - fn consts( - &mut self, - a: ty::Const<'tcx>, - b: ty::Const<'tcx>, - ) -> RelateResult<'tcx, ty::Const<'tcx>> { - self.infcx.probe(|_| { - if a.is_ct_infer() || b.is_ct_infer() { - Ok(a) - } else { - relate::super_relate_consts(self, a, b) // could do something similar here for constants! - } - }) - } - - fn binders<T: Relate<'tcx>>( - &mut self, - a: ty::Binder<'tcx, T>, - b: ty::Binder<'tcx, T>, - ) -> RelateResult<'tcx, ty::Binder<'tcx, T>> { - Ok(a.rebind(self.relate(a.skip_binder(), b.skip_binder())?)) - } -} - -impl<'tcx> ObligationEmittingRelation<'tcx> for CollectAllMismatches<'_, 'tcx> { - fn alias_relate_direction(&self) -> ty::AliasRelationDirection { - // FIXME(deferred_projection_equality): We really should get rid of this relation. - ty::AliasRelationDirection::Equate - } - - fn register_obligations(&mut self, _obligations: PredicateObligations<'tcx>) { - // FIXME(deferred_projection_equality) - } - - fn register_predicates( - &mut self, - _obligations: impl IntoIterator<Item: ty::ToPredicate<'tcx>>, - ) { - // FIXME(deferred_projection_equality) - } -} |