[][src]Struct rustc::mir::Constant

pub struct Constant<'tcx> {
    pub span: Span,
    pub user_ty: Option<UserTypeAnnotationIndex>,
    pub literal: &'tcx Const<'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.

Constants

Two constants are equal if they are the same constant. Note that this does not necessarily mean that they are "==" in Rust -- in particular one must be wary of NaN!

Fields

span: Span
⚙️ 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.

user_ty: Option<UserTypeAnnotationIndex>
⚙️ 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.

Optional user-given type: for something like collect::<Vec<_>>, this would be present and would indicate that Vec<_> was explicitly specified.

Needed for NLL to impose user-given type constraints.

literal: &'tcx Const<'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> Constant<'tcx>[src]

pub fn check_static_ptr(&self, tcx: TyCtxt) -> Option<DefId>[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> Clone for Constant<'tcx>[src]

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

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

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

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

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

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

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

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

Auto Trait Implementations

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

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

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

impl<'tcx> Unpin for Constant<'tcx>

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

Blanket Implementations

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

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.

impl<T> WithConstness for T[src]