bjoernager/rust
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Simplify a bunch of trait ref obligation creations

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Oli Scherer 2022-11-18 21:29:26 +00:00 • committed by Santiago Pastorino
parent 08afabddac
commit 42cc8e8f4e
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GPG key ID: 8131A24E0C79EFAF
10 changed files with 17 additions and 40 deletions
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13
compiler/rustc_const_eval/src/transform/check_consts/check.rs
View file

@ -10,7 +10,7 @@ use rustc_middle::mir::visit::{MutatingUseContext, NonMutatingUseContext, PlaceC
use rustc_middle::mir::*;
use rustc_middle::ty::subst::{GenericArgKind, InternalSubsts};
use rustc_middle::ty::{self, adjustment::PointerCast, Instance, InstanceDef, Ty, TyCtxt};
use rustc_middle::ty::{Binder, TraitPredicate, TraitRef, TypeVisitable};
use rustc_middle::ty::{Binder, TraitRef, TypeVisitable};
use rustc_mir_dataflow::{self, Analysis};
use rustc_span::{sym, Span, Symbol};
use rustc_trait_selection::traits::error_reporting::TypeErrCtxtExt as _;
@ -735,11 +735,8 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> {
}
let trait_ref = TraitRef::from_method(tcx, trait_id, substs);
let poly_trait_pred = Binder::dummy(TraitPredicate {
trait_ref,
constness: ty::BoundConstness::ConstIfConst,
polarity: ty::ImplPolarity::Positive,
});
let poly_trait_pred =
Binder::dummy(trait_ref).with_constness(ty::BoundConstness::ConstIfConst);
let obligation =
Obligation::new(tcx, ObligationCause::dummy(), param_env, poly_trait_pred);
@ -828,9 +825,7 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> {
tcx,
ObligationCause::dummy_with_span(*fn_span),
param_env,
tcx.mk_predicate(
poly_trait_pred.map_bound(ty::PredicateKind::Trait),
),
poly_trait_pred,
);
// improve diagnostics by showing what failed. Our requirements are stricter this time

11
compiler/rustc_const_eval/src/transform/check_consts/ops.rs
View file

@ -13,10 +13,9 @@ use rustc_middle::mir;
use rustc_middle::ty::print::with_no_trimmed_paths;
use rustc_middle::ty::subst::{GenericArgKind, SubstsRef};
use rustc_middle::ty::{
suggest_constraining_type_param, Adt, Closure, DefIdTree, FnDef, FnPtr, Param, TraitPredicate,
Ty,
suggest_constraining_type_param, Adt, Closure, DefIdTree, FnDef, FnPtr, Param, Ty,
};
use rustc_middle::ty::{Binder, BoundConstness, ImplPolarity, TraitRef};
use rustc_middle::ty::{Binder, TraitRef};
use rustc_session::parse::feature_err;
use rustc_span::symbol::sym;
use rustc_span::{BytePos, Pos, Span, Symbol};
@ -150,11 +149,7 @@ impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> {
tcx,
ObligationCause::dummy(),
param_env,
Binder::dummy(TraitPredicate {
trait_ref,
constness: BoundConstness::NotConst,
polarity: ImplPolarity::Positive,
}),
Binder::dummy(trait_ref),
);
let infcx = tcx.infer_ctxt().build();

7
compiler/rustc_const_eval/src/transform/check_consts/qualifs.rs
View file

@ -157,11 +157,8 @@ impl Qualif for NeedsNonConstDrop {
cx.tcx,
ObligationCause::dummy_with_span(cx.body.span),
cx.param_env,
ty::Binder::dummy(ty::TraitPredicate {
trait_ref: cx.tcx.at(cx.body.span).mk_trait_ref(LangItem::Destruct, [ty]),
constness: ty::BoundConstness::ConstIfConst,
polarity: ty::ImplPolarity::Positive,
}),
ty::Binder::dummy(cx.tcx.at(cx.body.span).mk_trait_ref(LangItem::Destruct, [ty]))
.with_constness(ty::BoundConstness::ConstIfConst),
);
let infcx = cx.tcx.infer_ctxt().build();