Enum rustc_infer::infer::region_constraints::UndoLog

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pub(crate) enum UndoLog<'tcx> {
    AddVar(RegionVid),
    AddConstraint(Constraint<'tcx>),
    AddVerify(usize),
    AddGiven(Region<'tcx>, RegionVid),
    AddCombination(CombineMapType, TwoRegions<'tcx>),
}

Variants

`AddVar(RegionVid)`

We added RegionVid.

`AddConstraint(Constraint<'tcx>)`

We added the given constraint.

`AddVerify(usize)`

We added the given verify.

`AddGiven(Region<'tcx>, RegionVid)`

We added the given given.

`AddCombination(CombineMapType, TwoRegions<'tcx>)`

We added a GLB/LUB “combination variable”.

Trait Implementations

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impl<'tcx> Clone for UndoLog<'tcx>

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fn clone(&self) -> UndoLog<'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> From<UndoLog<'tcx>> for UndoLog<'tcx>

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fn from(x: UndoLog<'tcx>) -> Self

Performs the conversion.

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impl<'tcx> PartialEq<UndoLog<'tcx>> for UndoLog<'tcx>

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fn eq(&self, other: &UndoLog<'tcx>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &UndoLog<'tcx>) -> bool

This method tests for !=.

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impl<'tcx> StructuralPartialEq for UndoLog<'tcx>

Auto Trait Implementations

impl<'tcx> RefUnwindSafe for UndoLog<'tcx>

impl<'tcx> Send for UndoLog<'tcx>

impl<'tcx> Sync for UndoLog<'tcx>

impl<'tcx> Unpin for UndoLog<'tcx>

impl<'tcx> UnwindSafe for UndoLog<'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<'tcx, T> ArenaAllocatable<'tcx, IsCopy> 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]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

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

const: unstable · source

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,

const: unstable · source

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

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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

const: unstable · source

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)

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.

const: unstable · source

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.

const: unstable · source

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: 32 bytes

Size for each variant:

AddVar: 7 bytes
AddConstraint: 31 bytes
AddVerify: 15 bytes
AddGiven: 15 bytes
AddCombination: 23 bytes

Enum rustc_infer::infer::region_constraints::UndoLog

Variants

AddVar(RegionVid)

AddConstraint(Constraint<'tcx>)

AddVerify(usize)

AddGiven(Region<'tcx>, RegionVid)

AddCombination(CombineMapType, TwoRegions<'tcx>)

Trait Implementations

impl<'tcx> Clone for UndoLog<'tcx>

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

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

impl<'tcx> From<UndoLog<'tcx>> for UndoLog<'tcx>

fn from(x: UndoLog<'tcx>) -> Self

impl<'tcx> PartialEq<UndoLog<'tcx>> for UndoLog<'tcx>

fn eq(&self, other: &UndoLog<'tcx>) -> bool

fn ne(&self, other: &UndoLog<'tcx>) -> bool

impl<'tcx> Rollback<UndoLog<'tcx>> for RegionConstraintStorage<'tcx>

fn reverse(&mut self, undo: UndoLog<'tcx>)

impl<'tcx> Copy for UndoLog<'tcx>

impl<'tcx> StructuralPartialEq for UndoLog<'tcx>

Auto Trait Implementations

impl<'tcx> RefUnwindSafe for UndoLog<'tcx>

impl<'tcx> Send for UndoLog<'tcx>

impl<'tcx> Sync for UndoLog<'tcx>

impl<'tcx> Unpin for UndoLog<'tcx>

impl<'tcx> UnwindSafe for UndoLog<'tcx>

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> 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]ⓘNotable traits for &'_ [u8]impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]

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

Layout

`AddVar(RegionVid)`

`AddConstraint(Constraint<'tcx>)`

`AddVerify(usize)`

`AddGiven(Region<'tcx>, RegionVid)`

`AddCombination(CombineMapType, TwoRegions<'tcx>)`

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

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

pub fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

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,