Enum rustc_mir_build::thir::pattern::usefulness::Reachability[−][src]

pub(crate) enum Reachability {
    Reachable(Vec<Span>),
    Unreachable,
}

Indicates whether or not a given arm is reachable.

Variants

Reachable(Vec<Span>)

The arm is reachable. This additionally carries a set of or-pattern branches that have been found to be unreachable despite the overall arm being reachable. Used only in the presence of or-patterns, otherwise it stays empty.

Unreachable

The arm is unreachable.

Trait Implementations

impl Clone for Reachability[src]

impl Debug for Reachability[src]

Auto Trait Implementations

impl RefUnwindSafe for Reachability

impl !Send for Reachability

impl !Sync for Reachability

impl Unpin for Reachability

impl UnwindSafe for Reachability

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> 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.