bjoernager/rust
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Add polarity to TraitPredicate

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This commit is contained in:
Santiago Pastorino 2021-10-11 18:10:35 -03:00
parent 72d66064e7
commit 6975afd141
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GPG key ID: 8131A24E0C79EFAF
15 changed files with 105 additions and 12 deletions
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11
compiler/rustc_middle/src/ty/error.rs
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@ -34,6 +34,7 @@ impl<T> ExpectedFound<T> {
pub enum TypeError<'tcx> {
Mismatch,
ConstnessMismatch(ExpectedFound<ty::BoundConstness>),
PolarityMismatch(ExpectedFound<ty::ImplPolarity>),
UnsafetyMismatch(ExpectedFound<hir::Unsafety>),
AbiMismatch(ExpectedFound<abi::Abi>),
Mutability,
@ -104,6 +105,9 @@ impl<'tcx> fmt::Display for TypeError<'tcx> {
ConstnessMismatch(values) => {
write!(f, "expected {} bound, found {} bound", values.expected, values.found)
}
PolarityMismatch(values) => {
write!(f, "expected {} polarity, found {} polarity", values.expected, values.found)
}
UnsafetyMismatch(values) => {
write!(f, "expected {} fn, found {} fn", values.expected, values.found)
}
@ -212,10 +216,9 @@ impl<'tcx> TypeError<'tcx> {
use self::TypeError::*;
match self {
CyclicTy(_) | CyclicConst(_) | UnsafetyMismatch(_) | ConstnessMismatch(_)
| Mismatch | AbiMismatch(_) | FixedArraySize(_) | ArgumentSorts(..) | Sorts(_)
| IntMismatch(_) | FloatMismatch(_) | VariadicMismatch(_) | TargetFeatureCast(_) => {
false
}
| PolarityMismatch(_) | Mismatch | AbiMismatch(_) | FixedArraySize(_)
| ArgumentSorts(..) | Sorts(_) | IntMismatch(_) | FloatMismatch(_)
| VariadicMismatch(_) | TargetFeatureCast(_) => false,
Mutability
| ArgumentMutability(_)