Struct miri::Allocation

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pub struct Allocation<Prov = AllocId, Extra = ()>where
    Prov: Provenance,{
    bytes: Box<[u8], Global>,
    provenance: ProvenanceMap<Prov>,
    init_mask: InitMask,
    pub align: Align,
    pub mutability: Mutability,
    pub extra: Extra,
}

Expand description

This type represents an Allocation in the Miri/CTFE core engine.

Its public API is rather low-level, working directly with allocation offsets and a custom error type to account for the lack of an AllocId on this level. The Miri/CTFE core engine memory module provides higher-level access.

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§bytes: Box<[u8], Global>§provenance: ProvenanceMap<Prov>§init_mask: InitMask§align: Align

The alignment of the allocation to detect unaligned reads. (Align guarantees that this is a power of two.)

§mutability: Mutability

true if the allocation is mutable. Also used by codegen to determine if a static should be put into mutable memory, which happens for static mut and static with interior mutability.

§extra: Extra

Extra state for the machine.

Trait Implementations§

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impl VisitTags for Allocation<Provenance, AllocExtra>

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fn visit_tags(&self, visit: &mut dyn FnMut(BorTag))

Auto Trait Implementations§

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impl<Prov, Extra> RefUnwindSafe for Allocation<Prov, Extra>where
Extra: RefUnwindSafe,
Prov: RefUnwindSafe,

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impl<Prov, Extra> Send for Allocation<Prov, Extra>where
Extra: Send,
Prov: Send,

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impl<Prov, Extra> Sync for Allocation<Prov, Extra>where
Extra: Sync,
Prov: Sync,

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impl<Prov, Extra> Unpin for Allocation<Prov, Extra>where
Extra: Unpin,
Prov: Unpin,

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impl<Prov, Extra> UnwindSafe for Allocation<Prov, Extra>where
Extra: UnwindSafe,
Prov: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source§

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§

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · 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.

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

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type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source§

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

Performs the conversion.

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

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type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source§

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

Performs the conversion.

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

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fn vzip(self) -> V

Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.

Struct miri::Allocation

Fields§

Trait Implementations§

impl VisitTags for Allocation<Provenance, AllocExtra>

fn visit_tags(&self, visit: &mut dyn FnMut(BorTag))

Auto Trait Implementations§

impl<Prov, Extra> RefUnwindSafe for Allocation<Prov, Extra>where
Extra: RefUnwindSafe,
Prov: RefUnwindSafe,

impl<Prov, Extra> Send for Allocation<Prov, Extra>where
Extra: Send,
Prov: Send,

impl<Prov, Extra> Sync for Allocation<Prov, Extra>where
Extra: Sync,
Prov: Sync,

impl<Prov, Extra> Unpin for Allocation<Prov, Extra>where
Extra: Unpin,
Prov: Unpin,

impl<Prov, Extra> UnwindSafe for Allocation<Prov, Extra>where
Extra: UnwindSafe,
Prov: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

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> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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<V, T> VZip<V> for Twhere
V: MultiLane<T>,

fn vzip(self) -> V

Layout§

Struct miri::Allocation

Fields§

Trait Implementations§

impl VisitTags for Allocation<Provenance, AllocExtra>

fn visit_tags(&self, visit: &mut dyn FnMut(BorTag))

Auto Trait Implementations§

impl<Prov, Extra> RefUnwindSafe for Allocation<Prov, Extra>where Extra: RefUnwindSafe, Prov: RefUnwindSafe,

impl<Prov, Extra> Send for Allocation<Prov, Extra>where Extra: Send, Prov: Send,

impl<Prov, Extra> Sync for Allocation<Prov, Extra>where Extra: Sync, Prov: Sync,

impl<Prov, Extra> Unpin for Allocation<Prov, Extra>where Extra: Unpin, Prov: Unpin,

impl<Prov, Extra> UnwindSafe for Allocation<Prov, Extra>where Extra: UnwindSafe, Prov: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

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> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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<V, T> VZip<V> for Twhere V: MultiLane<T>,

fn vzip(self) -> V

Layout§

impl<Prov, Extra> RefUnwindSafe for Allocation<Prov, Extra>where
Extra: RefUnwindSafe,
Prov: RefUnwindSafe,

impl<Prov, Extra> Send for Allocation<Prov, Extra>where
Extra: Send,
Prov: Send,

impl<Prov, Extra> Sync for Allocation<Prov, Extra>where
Extra: Sync,
Prov: Sync,

impl<Prov, Extra> Unpin for Allocation<Prov, Extra>where
Extra: Unpin,
Prov: Unpin,

impl<Prov, Extra> UnwindSafe for Allocation<Prov, Extra>where
Extra: UnwindSafe,
Prov: UnwindSafe,

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

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

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

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

impl<T> ToOwned for Twhere
T: Clone,

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

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

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