Enum rustc::traits::Goal

pub enum Goal<'tcx> {
    Implies(Vec<Clause<'tcx>>, Box<Goal<'tcx>>),
    And(Box<Goal<'tcx>>, Box<Goal<'tcx>>),
    Not(Box<Goal<'tcx>>),
    DomainGoal(DomainGoal<'tcx>),
    Quantified(QuantifierKind, Box<Binder<Goal<'tcx>>>),
}

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Variants

Implies(Vec<Clause<'tcx>>, Box<Goal<'tcx>>)

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And(Box<Goal<'tcx>>, Box<Goal<'tcx>>)

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Not(Box<Goal<'tcx>>)

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DomainGoal(DomainGoal<'tcx>)

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Quantified(QuantifierKind, Box<Binder<Goal<'tcx>>>)

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Trait Implementations

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

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

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impl<'tcx> Display for Goal<'tcx>

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

Formats the value using the given formatter.

impl<'tcx> TypeFoldable<'tcx> for Goal<'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_escaping_depth(&self, depth: u32) -> bool

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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 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_normalized_for_trans(&self) -> bool

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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. Errs on the side of returning false.

impl<'tcx> Clone for Goal<'tcx>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> PartialEq for Goal<'tcx>

fn eq(&self, __arg_0: &Goal<'tcx>) -> bool

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

fn ne(&self, __arg_0: &Goal<'tcx>) -> bool

This method tests for !=.

impl<'tcx> Eq for Goal<'tcx>

impl<'tcx> Hash for Goal<'tcx>

fn hash<__H: Hasher>(&self, __arg_0: &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 Goal<'tcx>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'tcx> From<DomainGoal<'tcx>> for Goal<'tcx>

fn from(domain_goal: DomainGoal<'tcx>) -> Self

Performs the conversion.