[][src]Struct rustc::ty::TraitRef

pub struct TraitRef<'tcx> {
    pub def_id: DefId,
    pub substs: SubstsRef<'tcx>,
}
⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

A complete reference to a trait. These take numerous guises in syntax, but perhaps the most recognizable form is in a where-clause:

T: Foo<U>

This would be represented by a trait-reference where the DefId is the DefId for the trait Foo and the substs define T as parameter 0, and U as parameter 1.

Trait references also appear in object types like Foo<U>, but in that case the Self parameter is absent from the substitutions.

Note that a TraitRef introduces a level of region binding, to account for higher-ranked trait bounds like T: for<'a> Foo<&'a U> or higher-ranked object types.

Fields

def_id: DefId
⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

substs: SubstsRef<'tcx>
⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Methods

impl<'tcx> TraitRef<'tcx>[src]

pub fn new(def_id: DefId, substs: SubstsRef<'tcx>) -> TraitRef<'tcx>[src]

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

pub fn identity(tcx: TyCtxt<'tcx>, def_id: DefId) -> TraitRef<'tcx>[src]

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Returns a TraitRef of the form P0: Foo<P1..Pn> where Pi are the parameters defined on trait.

pub fn self_ty(&self) -> Ty<'tcx>[src]

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

pub fn input_types<'a>(
    &'a self
) -> impl DoubleEndedIterator<Item = Ty<'tcx>> + 'a
[src]

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

pub fn from_method(
    tcx: TyCtxt<'tcx>,
    trait_id: DefId,
    substs: SubstsRef<'tcx>
) -> TraitRef<'tcx>
[src]

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

Trait Implementations

impl<'tcx> ToTrace<'tcx> for TraitRef<'tcx>[src]

impl<'tcx> TypeFoldable<'tcx> for TraitRef<'tcx>[src]

impl<'tcx, P: PrettyPrinter<'tcx>> Print<'tcx, P> for TraitRef<'tcx>[src]

type Output = P

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

type Error = Error

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

impl<'tcx> Relate<'tcx> for TraitRef<'tcx>[src]

impl<'a, 'tcx> Lift<'tcx> for TraitRef<'a>[src]

type Lifted = TraitRef<'tcx>

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

impl<'tcx> ToPolyTraitRef<'tcx> for TraitRef<'tcx>[src]

impl<'tcx> ToPredicate<'tcx> for TraitRef<'tcx>[src]

impl<'tcx> Clone for TraitRef<'tcx>[src]

impl<'tcx> Copy for TraitRef<'tcx>[src]

impl<'tcx> Eq for TraitRef<'tcx>[src]

impl<'tcx> PartialEq<TraitRef<'tcx>> for TraitRef<'tcx>[src]

impl<'tcx> Display for TraitRef<'tcx>[src]

impl<'tcx> Debug for TraitRef<'tcx>[src]

impl<'tcx> Hash for TraitRef<'tcx>[src]

impl<'tcx> StructuralPartialEq for TraitRef<'tcx>[src]

impl<'tcx> StructuralEq for TraitRef<'tcx>[src]

impl<'tcx> Encodable for TraitRef<'tcx>[src]

impl<'tcx> Decodable for TraitRef<'tcx>[src]

impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for TraitRef<'tcx>[src]

Auto Trait Implementations

impl<'tcx> !Send for TraitRef<'tcx>

impl<'tcx> !Sync for TraitRef<'tcx>

impl<'tcx> Unpin for TraitRef<'tcx>

impl<'tcx> !UnwindSafe for TraitRef<'tcx>

impl<'tcx> !RefUnwindSafe for TraitRef<'tcx>

Blanket Implementations

impl<T> ArenaAllocatable for T where
    T: Copy
[src]

impl<T> MaybeResult<T> for T[src]

type Error = !

⚙️ This is an internal compiler API. (rustc_private)

This crate is being loaded from the sysroot, a permanently unstable location for private compiler dependencies. It is not intended for general use. Prefer using a public version of this crate from crates.io via Cargo.toml.

impl<'tcx, T> Subst<'tcx> for T where
    T: TypeFoldable<'tcx>, 
[src]

impl<'a, T> Captures<'a> for T where
    T: ?Sized
[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> From<T> for T[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = !

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Encodable for T where
    T: UseSpecializedEncodable + ?Sized
[src]

impl<T> Decodable for T where
    T: UseSpecializedDecodable
[src]

impl<T> Erased for T[src]

impl<E> SpecializationError for E[src]

impl<Q, K> Equivalent<K> for Q where
    K: Borrow<Q> + ?Sized,
    Q: Eq + ?Sized
[src]