Enum rustc_infer::infer::RegionVariableOrigin[−][src]

pub enum RegionVariableOrigin {
    MiscVariable(Span),
    PatternRegion(Span),
    AddrOfRegion(Span),
    Autoref(Span, AssocItem),
    Coercion(Span),
    EarlyBoundRegion(Span, Symbol),
    LateBoundRegion(Span, BoundRegionKind, LateBoundRegionConversionTime),
    UpvarRegion(UpvarId, Span),
    Nll(NllRegionVariableOrigin),
}

Expand description

Reasons to create a region inference variable

See error_reporting module for more details

Variants

MiscVariable(Span)

Region variables created for ill-categorized reasons, mostly indicates places in need of refactoring

Tuple Fields of MiscVariable

0: Span

PatternRegion(Span)

Regions created by a &P or [...] pattern

Tuple Fields of PatternRegion

0: Span

AddrOfRegion(Span)

Regions created by & operator

Tuple Fields of AddrOfRegion

0: Span

Autoref(Span, AssocItem)

Regions created as part of an autoref of a method receiver

Tuple Fields of Autoref

0: Span1: AssocItem

Coercion(Span)

Regions created as part of an automatic coercion

Tuple Fields of Coercion

0: Span

EarlyBoundRegion(Span, Symbol)

Region variables created as the values for early-bound regions

Tuple Fields of EarlyBoundRegion

0: Span1: Symbol

LateBoundRegion(Span, BoundRegionKind, LateBoundRegionConversionTime)

Region variables created for bound regions in a function or method that is called

Tuple Fields of LateBoundRegion

0: Span1: BoundRegionKind2: LateBoundRegionConversionTime

UpvarRegion(UpvarId, Span)

Tuple Fields of UpvarRegion

0: UpvarId1: Span

Nll(NllRegionVariableOrigin)

This origin is used for the inference variables that we create during NLL region processing.

Tuple Fields of Nll

0: NllRegionVariableOrigin

Implementations

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Trait Implementations

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impl Clone for RegionVariableOrigin

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fn clone(&self) -> RegionVariableOrigin

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 Debug for RegionVariableOrigin

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

Formats the value using the given formatter. Read more

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impl Copy for RegionVariableOrigin

Auto Trait Implementations

impl RefUnwindSafe for RegionVariableOrigin

impl !Send for RegionVariableOrigin

impl !Sync for RegionVariableOrigin

impl Unpin for RegionVariableOrigin

impl UnwindSafe for RegionVariableOrigin

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<'tcx, T> ArenaAllocatable<'tcx, ()> for T where
T: Copy,

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pub fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

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pub fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]

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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 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 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>::Error>

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

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

Performs the conversion.

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impl<'a, T> Captures<'a> for T where
T: ?Sized,

Layout

Note: Most layout information is completely unstable and may even differ between compilations. 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: 56 bytes

Size for each variant:

MiscVariable: 8 bytes
PatternRegion: 8 bytes
AddrOfRegion: 8 bytes
Autoref: 52 bytes
Coercion: 8 bytes
EarlyBoundRegion: 12 bytes
LateBoundRegion: 32 bytes
UpvarRegion: 20 bytes
Nll: 24 bytes

Enum rustc_infer::infer::RegionVariableOrigin[−][src]

Variants

Tuple Fields of MiscVariable

Tuple Fields of PatternRegion

Tuple Fields of AddrOfRegion

Tuple Fields of Autoref

Tuple Fields of Coercion

Tuple Fields of EarlyBoundRegion

Tuple Fields of LateBoundRegion

Tuple Fields of UpvarRegion

Tuple Fields of Nll

Implementations

impl RegionVariableOrigin

pub fn span(&self) -> Span

Trait Implementations

impl Clone for RegionVariableOrigin

fn clone(&self) -> RegionVariableOrigin

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

impl Debug for RegionVariableOrigin

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

impl Copy for RegionVariableOrigin

Auto Trait Implementations

impl RefUnwindSafe for RegionVariableOrigin

impl !Send for RegionVariableOrigin

impl !Sync for RegionVariableOrigin

impl Unpin for RegionVariableOrigin

impl UnwindSafe for RegionVariableOrigin

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<'tcx, T> ArenaAllocatable<'tcx, ()> for T where T: Copy,

pub fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T

pub fn allocate_from_iter( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T>) -> &'a mut [T]

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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

type Owned = T

pub fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

impl<T> WithConstness for T

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

fn with_const_if_const(self) -> ConstnessAnd<Self>

fn without_const(self) -> ConstnessAnd<Self>

impl<'a, T> Captures<'a> for T where T: ?Sized,

Layout

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

impl<'tcx, T> ArenaAllocatable<'tcx, ()> for T where
T: Copy,

pub fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]

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

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

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

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

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

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

impl<'a, T> Captures<'a> for T where
T: ?Sized,