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Add helper to create the trait ref for a lang item

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This commit is contained in:
Oli Scherer 2022-11-17 14:39:19 +00:00
parent 25c4760b5d
commit ad57f88d3f
10 changed files with 51 additions and 66 deletions
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6
compiler/rustc_const_eval/src/transform/check_consts/qualifs.rs
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@ -153,14 +153,12 @@ impl Qualif for NeedsNonConstDrop {
return false;
}
let destruct = cx.tcx.require_lang_item(LangItem::Destruct, None);
let obligation = Obligation::new(
cx.tcx,
ObligationCause::dummy(),
ObligationCause::dummy_with_span(cx.body.span),
cx.param_env,
ty::Binder::dummy(ty::TraitPredicate {
trait_ref: cx.tcx.mk_trait_ref(destruct, ty, []),
trait_ref: cx.tcx.at(cx.body.span).mk_trait_ref(LangItem::Destruct, ty, []),
constness: ty::BoundConstness::ConstIfConst,
polarity: ty::ImplPolarity::Positive,
}),