[−][src]Enum rustc_mir::borrow_check::diagnostics::region_name::RegionNameHighlight

pub(crate) enum RegionNameHighlight {
    MatchedHirTy(Span),
    MatchedAdtAndSegment(Span),
    CannotMatchHirTy(Span, String),
    Occluded(Span, String),
}

Describes what to highlight to explain to the user that we're giving an anonymous region a synthesized name, and how to highlight it.

Variants

MatchedHirTy(Span)

The anonymous region corresponds to a reference that was found by traversing the type in the HIR.

MatchedAdtAndSegment(Span)

The anonymous region corresponds to a '_ in the generics list of a struct/enum/union.

CannotMatchHirTy(Span, String)

The anonymous region corresponds to a region where the type annotation is completely missing from the code, e.g. in a closure arguments |x| { ... }, where x is a reference.

Occluded(Span, String)

The anonymous region corresponds to a region where the type annotation is completely missing from the code, and even if we print out the full name of the type, the region name won't be included. This currently occurs for opaque types like impl Future.

Trait Implementations

impl Clone for RegionNameHighlight[src]

impl Debug for RegionNameHighlight[src]

Auto Trait Implementations

impl RefUnwindSafe for RegionNameHighlight

impl !Send for RegionNameHighlight

impl !Sync for RegionNameHighlight

impl Unpin for RegionNameHighlight

impl UnwindSafe for RegionNameHighlight

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<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.

impl<T> WithConstness for T[src]