Struct rustc::traits::VtableObjectData

pub struct VtableObjectData<'tcx, N> {
    pub upcast_trait_ref: PolyTraitRef<'tcx>,
    pub vtable_base: usize,
    pub nested: Vec<N>,
}

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A vtable for some object-safe trait Foo automatically derived for the object type Foo.

Fields

upcast_trait_ref: PolyTraitRef<'tcx>

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Foo upcast to the obligation trait. This will be some supertrait of Foo.

vtable_base: usize

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The vtable is formed by concatenating together the method lists of the base object trait and all supertraits; this is the start of upcast_trait_ref's methods in that vtable.

nested: Vec<N>

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Trait Implementations

impl<'gcx, N> HashStable<StableHashingContext<'gcx>> for VtableObjectData<'gcx, N> where
    N: HashStable<StableHashingContext<'gcx>>, 

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

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impl<'tcx, N: Debug> Debug for VtableObjectData<'tcx, N>

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

Formats the value using the given formatter.

impl<'tcx, N: TypeFoldable<'tcx>> TypeFoldable<'tcx> for VtableObjectData<'tcx, N>

fn super_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 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_erasable_regions(&self) -> bool

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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, N: PartialEq> PartialEq for VtableObjectData<'tcx, N>

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

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

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

This method tests for !=.

impl<'tcx, N: Eq> Eq for VtableObjectData<'tcx, N>

impl<'tcx, N: Clone> Clone for VtableObjectData<'tcx, N>

fn clone(&self) -> VtableObjectData<'tcx, N>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx, N: Encodable> Encodable for VtableObjectData<'tcx, N>

fn encode<__SN: Encoder>(&self, __arg_0: &mut __SN) -> Result<(), __SN::Error>

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impl<'tcx, N: Decodable> Decodable for VtableObjectData<'tcx, N>

fn decode<__DN: Decoder>(
    __arg_0: &mut __DN
) -> Result<VtableObjectData<'tcx, N>, __DN::Error>

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