pub struct AllocRef<'a, 'tcx, Prov: Provenance, Extra, Bytes: AllocBytes = Box<[u8]>> {
    alloc: &'a Allocation<Prov, Extra, Bytes>,
    range: AllocRange,
    tcx: TyCtxt<'tcx>,
    alloc_id: AllocId,
}
Expand description

A reference to some allocation that was already bounds-checked for the given region and had the on-access machine hooks run.

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§alloc: &'a Allocation<Prov, Extra, Bytes>§range: AllocRange§tcx: TyCtxt<'tcx>§alloc_id: AllocId

Implementations§

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impl<'tcx, 'a, Prov: Provenance, Extra, Bytes: AllocBytes> AllocRef<'a, 'tcx, Prov, Extra, Bytes>

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pub fn read_scalar( &self, range: AllocRange, read_provenance: bool ) -> InterpResult<'tcx, Scalar<Prov>>

range is relative to this allocation reference, not the base of the allocation.

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pub fn read_integer( &self, range: AllocRange ) -> InterpResult<'tcx, Scalar<Prov>>

range is relative to this allocation reference, not the base of the allocation.

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pub fn read_pointer(&self, offset: Size) -> InterpResult<'tcx, Scalar<Prov>>

offset is relative to this allocation reference, not the base of the allocation.

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pub fn get_bytes_strip_provenance<'b>(&'b self) -> InterpResult<'tcx, &'a [u8]>

range is relative to this allocation reference, not the base of the allocation.

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pub fn has_provenance(&self) -> bool

Returns whether the allocation has provenance anywhere in the range of the AllocRef.

Trait Implementations§

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impl<'a, 'tcx, Prov: Clone + Provenance, Extra: Clone, Bytes: Clone + AllocBytes> Clone for AllocRef<'a, 'tcx, Prov, Extra, Bytes>

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fn clone(&self) -> AllocRef<'a, 'tcx, Prov, Extra, Bytes>

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<'a, 'tcx, Prov: Copy + Provenance, Extra: Copy, Bytes: Copy + AllocBytes> Copy for AllocRef<'a, 'tcx, Prov, Extra, Bytes>

Auto Trait Implementations§

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impl<'a, 'tcx, Prov, Extra, Bytes> DynSend for AllocRef<'a, 'tcx, Prov, Extra, Bytes>
where Bytes: DynSync, Extra: DynSync, Prov: DynSync,

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impl<'a, 'tcx, Prov, Extra, Bytes> DynSync for AllocRef<'a, 'tcx, Prov, Extra, Bytes>
where Bytes: DynSync, Extra: DynSync, Prov: DynSync,

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impl<'a, 'tcx, Prov, Extra, Bytes = Box<[u8]>> !RefUnwindSafe for AllocRef<'a, 'tcx, Prov, Extra, Bytes>

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impl<'a, 'tcx, Prov, Extra, Bytes = Box<[u8]>> !Send for AllocRef<'a, 'tcx, Prov, Extra, Bytes>

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impl<'a, 'tcx, Prov, Extra, Bytes = Box<[u8]>> !Sync for AllocRef<'a, 'tcx, Prov, Extra, Bytes>

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impl<'a, 'tcx, Prov, Extra, Bytes> Unpin for AllocRef<'a, 'tcx, Prov, Extra, Bytes>

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impl<'a, 'tcx, Prov, Extra, Bytes = Box<[u8]>> !UnwindSafe for AllocRef<'a, 'tcx, Prov, Extra, Bytes>

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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

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

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

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

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fn allocate_from_iter<'a>( 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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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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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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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<_>>()).

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type Output = R

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impl<T> Filterable for T

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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
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<P> IntoQueryParam<P> for P

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impl<T> MaybeResult<T> for T

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type Error = !

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

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

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<'tcx, T> ToPredicate<'tcx, T> for T

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fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T

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

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type Error = Infallible

The type returned in the event of a conversion error.
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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>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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

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

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impl<T> WithSubscriber for T

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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
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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

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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: 40 bytes