Enum miri::MemPlaceMeta

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pub enum MemPlaceMeta<Tag = AllocId> where
    Tag: Provenance, {
    Meta(Scalar<Tag>),
    None,
    Poison,
}

Expand description

Information required for the sound usage of a MemPlace.

Variants

`Meta(Scalar<Tag>)`

The unsized payload (e.g. length for slices or vtable pointer for trait objects).

`None`

Sized types or unsized extern type

`Poison`

The address of this place may not be taken. This protects the MemPlace from coming from a ZST Operand without a backing allocation and being converted to an integer address. This should be impossible, because you can’t take the address of an operand, but this is a second protection layer ensuring that we don’t mess up.

Auto Trait Implementations

impl<Tag> RefUnwindSafe for MemPlaceMeta<Tag> where
Tag: RefUnwindSafe,

impl<Tag> Send for MemPlaceMeta<Tag> where
Tag: Send,

impl<Tag> Sync for MemPlaceMeta<Tag> where
Tag: Sync,

impl<Tag> Unpin for MemPlaceMeta<Tag> where
Tag: Unpin,

impl<Tag> UnwindSafe for MemPlaceMeta<Tag> where
Tag: UnwindSafe,

Blanket Implementations

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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<T> Borrow<T> for T where
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 T where
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 T where
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 T where
T: Clone,

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 T where
U: Into<T>,

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 T where
U: TryFrom<T>,

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.

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

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.

Enum miri::MemPlaceMeta

Variants

`Meta(Scalar<Tag>)`

`None`

`Poison`

Auto Trait Implementations

impl<Tag> RefUnwindSafe for MemPlaceMeta<Tag> where
Tag: RefUnwindSafe,

impl<Tag> Send for MemPlaceMeta<Tag> where
Tag: Send,

impl<Tag> Sync for MemPlaceMeta<Tag> where
Tag: Sync,

impl<Tag> Unpin for MemPlaceMeta<Tag> where
Tag: Unpin,

impl<Tag> UnwindSafe for MemPlaceMeta<Tag> where
Tag: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

fn into(self) -> U

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

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

fn vzip(self) -> V

Layout

Enum miri::MemPlaceMeta

Variants

Meta(Scalar<Tag>)

None

Poison

Auto Trait Implementations

impl<Tag> RefUnwindSafe for MemPlaceMeta<Tag> where Tag: RefUnwindSafe,

impl<Tag> Send for MemPlaceMeta<Tag> where Tag: Send,

impl<Tag> Sync for MemPlaceMeta<Tag> where Tag: Sync,

impl<Tag> Unpin for MemPlaceMeta<Tag> where Tag: Unpin,

impl<Tag> UnwindSafe for MemPlaceMeta<Tag> where Tag: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

fn into(self) -> U

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

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

fn vzip(self) -> V

Layout

`Meta(Scalar<Tag>)`

`None`

`Poison`

impl<Tag> RefUnwindSafe for MemPlaceMeta<Tag> where
Tag: RefUnwindSafe,

impl<Tag> Send for MemPlaceMeta<Tag> where
Tag: Send,

impl<Tag> Sync for MemPlaceMeta<Tag> where
Tag: Sync,

impl<Tag> Unpin for MemPlaceMeta<Tag> where
Tag: Unpin,

impl<Tag> UnwindSafe for MemPlaceMeta<Tag> where
Tag: UnwindSafe,

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

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