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Issue 89275 fix and test

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Issue 89275 fix and test

Fix librustdoc OverflowError usage

rust tidy run

Issue 89275 fix and test
This commit is contained in:
Tom Farmer 2021-10-05 18:53:24 +01:00
parent 25ec827385
commit 0950d5afe2
10 changed files with 82 additions and 18 deletions
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10
compiler/rustc_trait_selection/src/traits/select/mod.rs
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@ -20,8 +20,8 @@ use super::ObligationCauseCode;
use super::Selection;
use super::SelectionResult;
use super::TraitQueryMode;
use super::{ErrorReporting, Overflow, SelectionError, Unimplemented};
use super::{ObligationCause, PredicateObligation, TraitObligation};
use super::{Overflow, SelectionError, Unimplemented};
use crate::infer::{InferCtxt, InferOk, TypeFreshener};
use crate::traits::error_reporting::InferCtxtExt;
@ -900,7 +900,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
match self.candidate_from_obligation(stack) {
Ok(Some(c)) => self.evaluate_candidate(stack, &c),
Ok(None) => Ok(EvaluatedToAmbig),
Err(Overflow) => Err(OverflowError),
Err(Overflow) => Err(OverflowError::Cannonical),
Err(ErrorReporting) => Err(OverflowError::ErrorReporting),
Err(..) => Ok(EvaluatedToErr),
}
}
@ -1057,10 +1058,13 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
if !self.infcx.tcx.recursion_limit().value_within_limit(depth) {
match self.query_mode {
TraitQueryMode::Standard => {
if self.infcx.is_tainted_by_errors() {
return Err(OverflowError::ErrorReporting);
}
self.infcx.report_overflow_error(error_obligation, true);
}
TraitQueryMode::Canonical => {
return Err(OverflowError);
return Err(OverflowError::Cannonical);
}
}
}