TypeError

Type Alias TypeError 

pub type TypeError<'db> = TypeError<DbInterner<'db>>;

Aliased Type§

pub enum TypeError<'db> {
Show 24 variants Mismatch, PolarityMismatch(ExpectedFound<PredicatePolarity>), SafetyMismatch(ExpectedFound<Safety>), AbiMismatch(ExpectedFound<FnAbi>), Mutability, ArgumentMutability(usize), TupleSize(ExpectedFound<usize>), ArraySize(ExpectedFound<Const<'db>>), ArgCount, RegionsDoesNotOutlive(Region<'db>, Region<'db>), RegionsInsufficientlyPolymorphic(BoundRegion, Region<'db>), RegionsPlaceholderMismatch, Sorts(ExpectedFound<Ty<'db>>), ArgumentSorts(ExpectedFound<Ty<'db>>, usize), Traits(ExpectedFound<TraitIdWrapper>), VariadicMismatch(ExpectedFound<bool>), CyclicTy(Ty<'db>), CyclicConst(Const<'db>), ProjectionMismatched(ExpectedFound<SolverDefId>), ExistentialMismatch(ExpectedFound<BoundExistentialPredicates<'db>>), ConstMismatch(ExpectedFound<Const<'db>>), IntrinsicCast, ForceInlineCast, TargetFeatureCast(SolverDefId),
}

Variants§

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Mismatch

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PolarityMismatch(ExpectedFound<PredicatePolarity>)

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SafetyMismatch(ExpectedFound<Safety>)

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AbiMismatch(ExpectedFound<FnAbi>)

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Mutability

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ArgumentMutability(usize)

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TupleSize(ExpectedFound<usize>)

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ArraySize(ExpectedFound<Const<'db>>)

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ArgCount

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RegionsDoesNotOutlive(Region<'db>, Region<'db>)

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RegionsInsufficientlyPolymorphic(BoundRegion, Region<'db>)

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RegionsPlaceholderMismatch

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Sorts(ExpectedFound<Ty<'db>>)

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ArgumentSorts(ExpectedFound<Ty<'db>>, usize)

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Traits(ExpectedFound<TraitIdWrapper>)

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VariadicMismatch(ExpectedFound<bool>)

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CyclicTy(Ty<'db>)

Instantiating a type variable with the given type would have created a cycle (because it appears somewhere within that type).

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CyclicConst(Const<'db>)

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ProjectionMismatched(ExpectedFound<SolverDefId>)

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ExistentialMismatch(ExpectedFound<BoundExistentialPredicates<'db>>)

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ConstMismatch(ExpectedFound<Const<'db>>)

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IntrinsicCast

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ForceInlineCast

#[rustc_force_inline] functions must be inlined and must not be codegened independently, so casting to a function pointer must be prohibited.

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TargetFeatureCast(SolverDefId)

Safe #[target_feature] functions are not assignable to safe function pointers.