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

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

Expand description

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

fn clone(&self) -> RegionNameHighlight

Returns a copy of the value. Read more

1.0.0[src]

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for RegionNameHighlight

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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,

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized,

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

pub fn from(t: T) -> T

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>,

pub fn into(self) -> U

Performs the conversion.

impl<T> ToOwned for T where
    T: Clone,

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithConstness for T

fn with_constness(self, constness: Constness) -> ConstnessAnd<Self>

fn with_const(self) -> ConstnessAnd<Self>

fn without_const(self) -> ConstnessAnd<Self>

Layout

Note: Most layout information is completely unstable and may be different between compiler versions and platforms. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 40 bytes