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adopt to building infcx

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This commit is contained in:
Maybe Waffle 2022-10-07 18:21:32 +00:00
parent 5347c81924
commit 9d4edff1b0
1 changed files with 18 additions and 21 deletions
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39
compiler/rustc_lint/src/for_loops_over_fallibles.rs
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@ -159,28 +159,25 @@ fn suggest_question_mark<'tcx>(
}
let ty = substs.type_at(0);
let is_iterator = cx.tcx.infer_ctxt().enter(|infcx| {
let mut fulfill_cx = <dyn TraitEngine<'_>>::new(infcx.tcx);
let infcx = cx.tcx.infer_ctxt().build();
let mut fulfill_cx = <dyn TraitEngine<'_>>::new(infcx.tcx);
let cause = ObligationCause::new(
span,
body_id.hir_id,
rustc_infer::traits::ObligationCauseCode::MiscObligation,
);
fulfill_cx.register_bound(
&infcx,
ty::ParamEnv::empty(),
// Erase any region vids from the type, which may not be resolved
infcx.tcx.erase_regions(ty),
into_iterator_did,
cause,
);
let cause = ObligationCause::new(
span,
body_id.hir_id,
rustc_infer::traits::ObligationCauseCode::MiscObligation,
);
fulfill_cx.register_bound(
&infcx,
ty::ParamEnv::empty(),
// Erase any region vids from the type, which may not be resolved
infcx.tcx.erase_regions(ty),
into_iterator_did,
cause,
);
// Select all, including ambiguous predicates
let errors = fulfill_cx.select_all_or_error(&infcx);
// Select all, including ambiguous predicates
let errors = fulfill_cx.select_all_or_error(&infcx);
errors.is_empty()
});
is_iterator
errors.is_empty()
}