Type Definition rustc::ty::Region

type Region<'tcx> = &'tcx RegionKind;

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Trait Implementations

impl<'tcx> ToTrace<'tcx> for Region<'tcx>

fn to_trace(     cause: &ObligationCause<'tcx>,     a_is_expected: bool,     a: Self,     b: Self ) -> TypeTrace<'tcx>

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impl<'a, 'tcx, 'x> SpecializedDecoder<Region<'tcx>> for CacheDecoder<'a, 'tcx, 'x>

fn specialized_decode(&mut self) -> Result<Region<'tcx>, Self::Error>

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Decode a value in a manner specific to this decoder state.

impl<'tcx> Relate<'tcx> for Region<'tcx>

fn relate<'a, 'gcx, R>(     relation: &mut R,     a: &Region<'tcx>,     b: &Region<'tcx> ) -> RelateResult<'tcx, Region<'tcx>> where     R: TypeRelation<'a, 'gcx, 'tcx>,     'gcx: 'a + 'tcx,     'tcx: 'a,

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impl<'tcx> From<Region<'tcx>> for Kind<'tcx>

fn from(r: Region<'tcx>) -> Kind<'tcx>

Performs the conversion.

impl<'a, 'tcx> Lift<'tcx> for Region<'a>

type Lifted = Region<'tcx>

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fn lift_to_tcx<'b, 'gcx>(     &self,     tcx: TyCtxt<'b, 'gcx, 'tcx> ) -> Option<Region<'tcx>>

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impl<'tcx> TypeFoldable<'tcx> for Region<'tcx>

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

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

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

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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 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. Errs on the side of returning false.

impl<'tcx> UseSpecializedDecodable for Region<'tcx>

fn default_decode<D>(&mut D) -> Result<Self, <D as Decoder>::Error> where     D: Decoder,

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Defaults to returning an error (see SpecializationError).