Enum rustc_mir::borrow_check::diagnostics::region_errors::RegionErrorKind[−][src]

pub(crate) enum RegionErrorKind<'tcx> {
    TypeTestError {
        type_test: TypeTest<'tcx>,
    },
    UnexpectedHiddenRegion {
        span: Span,
        hidden_ty: Ty<'tcx>,
        member_region: Region<'tcx>,
    },
    BoundUniversalRegionError {
        longer_fr: RegionVid,
        error_element: RegionElement,
        fr_origin: NllRegionVariableOrigin,
    },
    RegionError {
        fr_origin: NllRegionVariableOrigin,
        longer_fr: RegionVid,
        shorter_fr: RegionVid,
        is_reported: bool,
    },
}

Variants

TypeTestError

A generic bound failure for a type test (T: 'a).

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Fields of TypeTestError

type_test: TypeTest<'tcx>

UnexpectedHiddenRegion

An unexpected hidden region for an opaque type.

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Fields of UnexpectedHiddenRegion

span: Span

The span for the member constraint.

hidden_ty: Ty<'tcx>

The hidden type.

member_region: Region<'tcx>

The unexpected region.

BoundUniversalRegionError

Higher-ranked subtyping error.

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Fields of BoundUniversalRegionError

longer_fr: RegionVid

The placeholder free region.

error_element: RegionElement

The region element that erroneously must be outlived by longer_fr.

fr_origin: NllRegionVariableOrigin

The origin of the placeholder region.

RegionError

Any other lifetime error.

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Fields of RegionError

fr_origin: NllRegionVariableOrigin

The origin of the region.

longer_fr: RegionVid

The region that should outlive shorter_fr.

shorter_fr: RegionVid

The region that should be shorter, but we can’t prove it.

is_reported: bool

Indicates whether this is a reported error. We currently only report the first error encountered and leave the rest unreported so as not to overwhelm the user.

Trait Implementations

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impl<'tcx> Clone for RegionErrorKind<'tcx>

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fn clone(&self) -> RegionErrorKind<'tcx>

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl<'tcx> Debug for RegionErrorKind<'tcx>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

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

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

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

impl<'tcx> Unpin for RegionErrorKind<'tcx>

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

Blanket Implementations

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impl<T> Any for T where
    T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

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pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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

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pub fn into(self) -> U

Performs the conversion.

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

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

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

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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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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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.

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

Performs the conversion.

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impl<T> WithConstness for T

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

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fn with_const(self) -> ConstnessAnd<Self>

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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: 96 bytes