Enum RelaxedBoundPolicy

Source

pub(crate) enum RelaxedBoundPolicy<'a> {
    Allowed,
    AllowedIfOnTyParam(NodeId, &'a [GenericParam]),
    Forbidden(RelaxedBoundForbiddenReason),
}

Expand description

How relaxed bounds ?Trait should be treated.

Relaxed bounds should only be allowed in places where we later (namely during HIR ty lowering) perform sized elaboration.

Variants§

§

Allowed

§

AllowedIfOnTyParam(NodeId, &'a [GenericParam])

§

Forbidden(RelaxedBoundForbiddenReason)

Trait Implementations§

Source §

impl<'a> Clone for RelaxedBoundPolicy<'a>

Source §

fn clone(&self) -> RelaxedBoundPolicy<'a>

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

Source §

impl<'a> Debug for RelaxedBoundPolicy<'a>

Source §

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

Formats the value using the given formatter. Read more

Source §

impl<'a> Copy for RelaxedBoundPolicy<'a>

Auto Trait Implementations§

§

impl<'a> UnwindSafe for RelaxedBoundPolicy<'a>

Blanket Implementations§

Source §

impl<T> Aligned for T

Source §

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

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

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

Source §

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

Source §

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

Source §

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

Source §

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

Source §

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

Source §

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

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

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

Source §

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

Mutably borrows from an owned value. Read more

Source §

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

Source §

unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

Source §

impl<T, R> CollectAndApply<T, R> for T

Source §

fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

Source §

type Output = R

Source §

impl<T> Filterable for T

Source §

fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

impl<T> Instrument for T

Source §

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

Source §

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Source §

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

Source §

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

impl IntoQueryParam for P

Source §

fn into_query_param(self) -> P

Source §

impl<T> MaybeResult<T> for T

Source §

type Error = !

Source §

fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

Source §

fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

Source §

impl<T> Pointable for T

Source §

type Init = T

The type for initializers.

Source §

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

Source §

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

Source §

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

Source §

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

Source §

impl<T> Same for T

Source §

type Output = T

Should always be Self

Source §

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

Source §

type Owned = T

The resulting type after obtaining ownership.

Source §

fn to_owned(&self) -> T

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

Source §

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

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

Source §

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

Source §

type Error = Infallible

The type returned in the event of a conversion error.

Source §

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

Performs the conversion.

Source §

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

Source §

type Error = >::Error

The type returned in the event of a conversion error.

Source §

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

Performs the conversion.

Source §

impl<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

Source §

fn upcast(self, interner: I) -> U

Source §

impl<I, T> UpcastFrom<I, T> for T

Source §

fn upcast_from(from: T, _tcx: I) -> T

Source §

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

Source §

fn vzip(self) -> V

Source §

impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

Source §

default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T

Source §

impl<T> WithSubscriber for T

Source §

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

Source §

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Source §

impl<T> ErasedDestructor for T
where T: 'static,

Source §

impl<T> MaybeSendSync for T
where T: Send + Sync,

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: 24 bytes

Size for each variant:

Allowed: 0 bytes
AllowedIfOnTyParam: 23 bytes
Forbidden: 1 byte

RelaxedBoundPolicy

Enum RelaxedBoundPolicy Copy item path

Variants§

Allowed

AllowedIfOnTyParam(NodeId, &'a [GenericParam])

Forbidden(RelaxedBoundForbiddenReason)

Trait Implementations§

impl<'a> Clone for RelaxedBoundPolicy<'a>

fn clone(&self) -> RelaxedBoundPolicy<'a>

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

impl<'a> Debug for RelaxedBoundPolicy<'a>

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

impl<'a> Copy for RelaxedBoundPolicy<'a>

Auto Trait Implementations§

impl<'a> DynSend for RelaxedBoundPolicy<'a>

impl<'a> DynSync for RelaxedBoundPolicy<'a>

impl<'a> Freeze for RelaxedBoundPolicy<'a>

impl<'a> RefUnwindSafe for RelaxedBoundPolicy<'a>

impl<'a> Send for RelaxedBoundPolicy<'a>

impl<'a> Sync for RelaxedBoundPolicy<'a>

impl<'a> Unpin for RelaxedBoundPolicy<'a>

impl<'a> UnwindSafe for RelaxedBoundPolicy<'a>

Blanket Implementations§

impl<T> Aligned for T

const ALIGN: Alignment

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

fn type_id(&self) -> TypeId

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

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

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

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

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

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

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

fn borrow(&self) -> &T

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

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

impl<T> CloneToUninit for Twhere T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

impl<T, R> CollectAndApply<T, R> for T

fn collect_and_apply<I, F>(iter: I, f: F) -> Rwhere I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

type Output = R

impl<T> Filterable for T

fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(DataRequest<'_>) -> bool>

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

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

fn into(self) -> U

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>where F: FnOnce(&Self) -> bool,

impl<P> IntoQueryParam<P> for P

fn into_query_param(self) -> P

impl<T> MaybeResult<T> for T

type Error = !

fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> Same for T

type Output = T

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

impl<I, T, U> Upcast<I, U> for Twhere U: UpcastFrom<I, T>,

Enum RelaxedBoundPolicy

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

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

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

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

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

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

fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

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

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

impl<T> ErasedDestructor for T
where T: 'static,

impl<T> MaybeSendSync for T
where T: Send + Sync,