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fix(rustc_typeck): report function argument errors on matching type

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Fixes #90101
This commit is contained in:
Michael Howell 2021-10-22 13:49:12 -07:00
parent 84c2a8505d
commit 8520105464
33 changed files with 252 additions and 141 deletions
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3
compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
View file

@ -1492,6 +1492,9 @@ impl<'a, 'tcx> InferCtxtPrivExt<'tcx> for InferCtxt<'a, 'tcx> {
}
}
}
ObligationCauseCode::FunctionArgumentObligation { parent_code, .. } => {
self.get_parent_trait_ref(&parent_code)
}
_ => None,
}
}

3
compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
View file

@ -1422,6 +1422,9 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
while let Some(code) = next_code {
debug!("maybe_note_obligation_cause_for_async_await: code={:?}", code);
match code {
ObligationCauseCode::FunctionArgumentObligation { parent_code, .. } => {
next_code = Some(parent_code.as_ref());
}
ObligationCauseCode::DerivedObligation(derived_obligation)
| ObligationCauseCode::BuiltinDerivedObligation(derived_obligation)
| ObligationCauseCode::ImplDerivedObligation(derived_obligation) => {