bjoernager/rust
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selection failure: recompute applicable impls

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This commit is contained in:
lcnr 2022-10-19 17:17:19 +02:00
parent ddfe1e87f7
commit f1551bfc02
21 changed files with 166 additions and 73 deletions
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4
compiler/rustc_trait_selection/src/traits/select/mod.rs
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@ -294,9 +294,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
assert!(self.query_mode == TraitQueryMode::Canonical);
return Err(SelectionError::Overflow(OverflowError::Canonical));
}
Err(SelectionError::Ambiguous(_)) => {
return Ok(None);
}
Err(e) => {
return Err(e);
}
@ -931,7 +928,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
match self.candidate_from_obligation(stack) {
Ok(Some(c)) => self.evaluate_candidate(stack, &c),
Err(SelectionError::Ambiguous(_)) => Ok(EvaluatedToAmbig),
Ok(None) => Ok(EvaluatedToAmbig),
Err(Overflow(OverflowError::Canonical)) => Err(OverflowError::Canonical),
Err(ErrorReporting) => Err(OverflowError::ErrorReporting),