[−][src]Enum rustc_middle::middle::stability::EvalResult

pub enum EvalResult {
    Allow,
    Deny {
        feature: Symbol,
        reason: Option<Symbol>,
        issue: Option<NonZeroU32>,
        is_soft: bool,
    },
    Unmarked,
}

Result of TyCtxt::eval_stability.

Variants

Allow

We can use the item because it is stable or we provided the corresponding feature gate.

Deny

We cannot use the item because it is unstable and we did not provide the corresponding feature gate.

Fields of Deny

feature: Symbolreason: Option<Symbol>issue: Option<NonZeroU32>is_soft: bool
Unmarked

The item does not have the #[stable] or #[unstable] marker assigned.

Auto Trait Implementations

impl RefUnwindSafe for EvalResult

impl Send for EvalResult

impl Sync for EvalResult

impl Unpin for EvalResult

impl UnwindSafe for EvalResult

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> 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 = !

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]