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Rollup merge of #115566 - zirconium-n:issue-107250-clean-up-unused-to-predicate, r=oli-obk

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clean up unneeded `ToPredicate` impls

Part of #107250.
Removed all totally unused impls. And inlined two impls not need to satisify trait bound.

r? `@oli-obk`
This commit is contained in:
Guillaume Gomez 2023-09-20 17:33:16 +02:00 • committed by GitHub
commit 4e8f637783
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6 changed files with 23 additions and 58 deletions
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10
compiler/rustc_hir_analysis/src/check/compare_impl_item.rs
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@ -18,7 +18,7 @@ use rustc_middle::ty::util::ExplicitSelf;
use rustc_middle::ty::{
self, GenericArgs, Ty, TypeFoldable, TypeFolder, TypeSuperFoldable, TypeVisitableExt,
};
use rustc_middle::ty::{GenericParamDefKind, ToPredicate, TyCtxt};
use rustc_middle::ty::{GenericParamDefKind, TyCtxt};
use rustc_span::{Span, DUMMY_SP};
use rustc_trait_selection::traits::error_reporting::TypeErrCtxtExt;
use rustc_trait_selection::traits::outlives_bounds::InferCtxtExt as _;
@ -2196,16 +2196,16 @@ pub(super) fn check_type_bounds<'tcx>(
//
// impl<T> X for T where T: X { type Y = <T as X>::Y; }
}
_ => predicates.push(
_ => predicates.push(ty::Clause::from_projection_clause(
tcx,
ty::Binder::bind_with_vars(
ty::ProjectionPredicate {
projection_ty: tcx.mk_alias_ty(trait_ty.def_id, rebased_args),
term: normalize_impl_ty.into(),
},
bound_vars,
)
.to_predicate(tcx),
),
),
)),
};
ty::ParamEnv::new(tcx.mk_clauses(&predicates), Reveal::UserFacing)
};