Type Alias ExistentialProjection

pub type ExistentialProjection<'tcx> = ExistentialProjection<TyCtxt<'tcx>>;

Aliased Type

struct ExistentialProjection<'tcx> {
    pub def_id: DefId,
    pub args: &'tcx RawList<(), GenericArg<'tcx>>,
    pub term: Term<'tcx>,
    /* private fields */
}

Fields

def_id: DefId

args: &'tcx RawList<(), GenericArg<'tcx>>

term: Term<'tcx>

Implementations

impl<I> ExistentialProjection<I>

where I: Interner,

pub fn new_from_args( interner: I, def_id: <I as Interner>::DefId, args: <I as Interner>::GenericArgs, term: <I as Interner>::Term, ) -> ExistentialProjection<I>

pub fn new( interner: I, def_id: <I as Interner>::DefId, args: impl IntoIterator>, term: <I as Interner>::Term, ) -> ExistentialProjection<I>

where <impl IntoIterator as IntoIterator>::Item: Into<<I as Interner>::GenericArg>,

pub fn trait_ref(&self, interner: I) -> ExistentialTraitRef<I>

Extracts the underlying existential trait reference from this projection. For example, if this is a projection of exists T. <T as Iterator>::Item == X, then this function would return an exists T. T: Iterator existential trait reference.

pub fn with_self_ty( &self, interner: I, self_ty: <I as Interner>::Ty, ) -> ProjectionPredicate<I>

pub fn erase_self_ty( interner: I, projection_predicate: ProjectionPredicate<I>, ) -> ExistentialProjection<I>

Trait Implementations

impl<'tcx, P: PrettyPrinter<'tcx>> Print<'tcx, P> for ExistentialProjection<'tcx>

fn print(&self, cx: &mut P) -> Result<(), PrintError>

impl<I> Clone for ExistentialProjection<I>

where I: Interner,

fn clone(&self) -> ExistentialProjection<I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<I> Debug for ExistentialProjection<I>

where I: Interner,

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<I, __D> Decodable<__D> for ExistentialProjection<I>

where I: Interner, __D: TyDecoder<I = I>, <I as Interner>::DefId: Decodable<__D>, <I as Interner>::GenericArgs: Decodable<__D>, <I as Interner>::Term: Decodable<__D>,

fn decode(__decoder: &mut __D) -> ExistentialProjection<I>

impl<I> Display for ExistentialProjection<I>

where I: Interner,

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<I, __E> Encodable<__E> for ExistentialProjection<I>

where I: Interner, __E: TyEncoder<I = I>, <I as Interner>::DefId: Encodable<__E>, <I as Interner>::GenericArgs: Encodable<__E>, <I as Interner>::Term: Encodable<__E>,

fn encode(&self, __encoder: &mut __E)

impl<I> Hash for ExistentialProjection<I>

where I: Interner,

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

where __H: Hasher,

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<I, __CTX> HashStable<__CTX> for ExistentialProjection<I>

where I: Interner, <I as Interner>::DefId: HashStable<__CTX>, <I as Interner>::GenericArgs: HashStable<__CTX>, <I as Interner>::Term: HashStable<__CTX>,

fn hash_stable( &self, __hcx: &mut __CTX, __hasher: &mut StableHasher<SipHasher128>, )

impl<I, J> Lift<J> for ExistentialProjection<I>

where J: Interner, <I as Interner>::DefId: Lift<J, Lifted = <J as Interner>::DefId>, <I as Interner>::GenericArgs: Lift<J, Lifted = <J as Interner>::GenericArgs>, <I as Interner>::Term: Lift<J, Lifted = <J as Interner>::Term>, I: Interner, (): Lift<J, Lifted = ()>,

type Lifted = ExistentialProjection<J>

fn lift_to_interner(self, interner: J) -> Option<ExistentialProjection<J>>

impl<I> PartialEq for ExistentialProjection<I>

where I: Interner,

fn eq(&self, __other: &ExistentialProjection<I>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<I> Relate<I> for ExistentialProjection<I>

where I: Interner,

fn relate<R>( relation: &mut R, a: ExistentialProjection<I>, b: ExistentialProjection<I>, ) -> Result<ExistentialProjection<I>, TypeError<I>>

where R: TypeRelation<I>,

impl<I> TypeFoldable<I> for ExistentialProjection<I>

where I: Interner, <I as Interner>::DefId: TypeFoldable<I>, <I as Interner>::GenericArgs: TypeFoldable<I>, <I as Interner>::Term: TypeFoldable<I>,

fn try_fold_with<__F>( self, __folder: &mut __F, ) -> Result<ExistentialProjection<I>, <__F as FallibleTypeFolder<I>>::Error>

where __F: FallibleTypeFolder<I>,

The entry point for folding. To fold a value t with a folder f call: t.try_fold_with(f).

fn fold_with<F>(self, folder: &mut F) -> Self

where F: TypeFolder<I>,

A convenient alternative to try_fold_with for use with infallible folders. Do not override this method, to ensure coherence with try_fold_with.

impl<I> TypeVisitable<I> for ExistentialProjection<I>

where I: Interner, <I as Interner>::DefId: TypeVisitable<I>, <I as Interner>::GenericArgs: TypeVisitable<I>, <I as Interner>::Term: TypeVisitable<I>,

fn visit_with<__V>( &self, __visitor: &mut __V, ) -> <__V as TypeVisitor<I>>::Result

where __V: TypeVisitor<I>,

The entry point for visiting. To visit a value t with a visitor v call: t.visit_with(v).

impl<I> Copy for ExistentialProjection<I>

where I: Interner,

impl<I> Eq for ExistentialProjection<I>

where I: Interner,

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 24 bytes