[][src]Enum rustc::infer::canonical::CanonicalVarKind

pub enum CanonicalVarKind {
    Ty(CanonicalTyVarKind),
    PlaceholderTy(PlaceholderType),
    Region(UniverseIndex),
    PlaceholderRegion(PlaceholderRegion),
    Const(UniverseIndex),
    PlaceholderConst(PlaceholderConst),
}
⚙️ 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.

Describes the "kind" of the canonical variable. This is a "kind" in the type-theory sense of the term -- i.e., a "meta" type system that analyzes type-like values.

Variants

Ty(CanonicalTyVarKind)
⚙️ 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.

Some kind of type inference variable.

PlaceholderTy(PlaceholderType)
⚙️ 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 "placeholder" that represents "any type".

Region(UniverseIndex)
⚙️ 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.

Region variable '?R.

PlaceholderRegion(PlaceholderRegion)
⚙️ 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 "placeholder" that represents "any region". Created when you are solving a goal like for<'a> T: Foo<'a> to represent the bound region 'a.

Const(UniverseIndex)
⚙️ 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.

Some kind of const inference variable.

PlaceholderConst(PlaceholderConst)
⚙️ 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 "placeholder" that represents "any const".

Methods

impl CanonicalVarKind[src]

pub fn universe(self) -> UniverseIndex[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 Clone for CanonicalVarKind[src]

impl Copy for CanonicalVarKind[src]

impl Debug for CanonicalVarKind[src]

impl Decodable for CanonicalVarKind[src]

impl Encodable for CanonicalVarKind[src]

impl Eq for CanonicalVarKind[src]

impl Hash for CanonicalVarKind[src]

impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for CanonicalVarKind[src]

impl<'tcx> Lift<'tcx> for CanonicalVarKind[src]

type Lifted = Self

⚙️ 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 PartialEq<CanonicalVarKind> for CanonicalVarKind[src]

impl StructuralEq for CanonicalVarKind[src]

impl StructuralPartialEq for CanonicalVarKind[src]

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

Auto Trait Implementations

impl RefUnwindSafe for CanonicalVarKind

impl Send for CanonicalVarKind

impl Sync for CanonicalVarKind

impl Unpin for CanonicalVarKind

impl UnwindSafe for CanonicalVarKind

Blanket Implementations

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

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

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

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

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

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

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

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

impl<T> Erased for T[src]

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

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

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

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

type Owned = T

The resulting type after obtaining ownership.

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

type Error = Infallible

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.