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Note binding obligation causes for const equate errors

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This commit is contained in:
Michael Goulet 2022-08-12 03:13:45 +00:00
parent 4e976262a1
commit 4ff587263e
6 changed files with 101 additions and 3 deletions
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19
compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
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@ -1506,13 +1506,26 @@ impl<'a, 'tcx> InferCtxtPrivExt<'a, 'tcx> for InferCtxt<'a, 'tcx> {
.emit();
}
FulfillmentErrorCode::CodeConstEquateError(ref expected_found, ref err) => {
self.report_mismatched_consts(
let mut diag = self.report_mismatched_consts(
&error.obligation.cause,
expected_found.expected,
expected_found.found,
err.clone(),
)
.emit();
);
let code = error.obligation.cause.code().peel_derives().peel_match_impls();
if let ObligationCauseCode::BindingObligation(..)
| ObligationCauseCode::ItemObligation(..) = code
{
self.note_obligation_cause_code(
&mut diag,
&error.obligation.predicate,
error.obligation.param_env,
code,
&mut vec![],
&mut Default::default(),
);
}
diag.emit();
}
}
}