Enum rustc::traits::Clause

pub enum Clause<'tcx> {
    Implies(ProgramClause<'tcx>),
    ForAll(Binder<ProgramClause<'tcx>>),
}

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This matches the definition from Page 7 of "A Proof Procedure for the Logic of Hereditary Harrop Formulas".

Variants

Implies(ProgramClause<'tcx>)

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ForAll(Binder<ProgramClause<'tcx>>)

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Trait Implementations

impl<'a, 'tcx> HashStable<StableHashingContext<'a>> for Clause<'tcx>

fn hash_stable<W: StableHasherResult>(     &self,     hcx: &mut StableHashingContext<'a>,     hasher: &mut StableHasher<W> )

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impl<'tcx> Display for Clause<'tcx>

fn fmt(&self, fmt: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'tcx> TypeFoldable<'tcx> for Clause<'tcx>

fn super_fold_with<'gcx: 'tcx, V: TypeFolder<'gcx, 'tcx>>(     &self,     folder: &mut V ) -> Self

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fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool

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fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(     &self,     folder: &mut F ) -> Self

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fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool

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fn has_regions_bound_at_or_above(&self, binder: DebruijnIndex) -> bool

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True if self has any late-bound regions that are either bound by binder or bound by some binder outside of binder. If binder is ty::INNERMOST, this indicates whether there are any late-bound regions that appear free.

fn has_regions_bound_above(&self, binder: DebruijnIndex) -> bool

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True if this self has any regions that escape binder (and hence are not bound by it).

fn has_escaping_regions(&self) -> bool

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fn has_type_flags(&self, flags: TypeFlags) -> bool

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fn has_projections(&self) -> bool

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fn references_error(&self) -> bool

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fn has_param_types(&self) -> bool

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fn has_self_ty(&self) -> bool

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fn has_infer_types(&self) -> bool

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fn needs_infer(&self) -> bool

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fn has_skol(&self) -> bool

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fn needs_subst(&self) -> bool

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fn has_re_skol(&self) -> bool

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fn has_closure_types(&self) -> bool

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fn has_free_regions(&self) -> bool

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"Free" regions in this context means that it has any region that is not (a) erased or (b) late-bound.

fn has_erasable_regions(&self) -> bool

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True if there any any un-erased free regions.

fn is_global(&self) -> bool

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Indicates whether this value references only 'global' types/lifetimes that are the same regardless of what fn we are in. This is used for caching.

fn has_late_bound_regions(&self) -> bool

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True if there are any late-bound regions

impl<'tcx> Copy for Clause<'tcx>

impl<'tcx> Clone for Clause<'tcx>

fn clone(&self) -> Clause<'tcx>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'tcx> PartialEq for Clause<'tcx>

fn eq(&self, other: &Clause<'tcx>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Clause<'tcx>) -> bool

This method tests for !=.

impl<'tcx> Eq for Clause<'tcx>

fn assert_receiver_is_total_eq(&self)

impl<'tcx> Hash for Clause<'tcx>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

Feeds a slice of this type into the given [Hasher].

impl<'tcx> Debug for Clause<'tcx>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.