Enum rustc_const_eval::interpret::MemPlaceMeta

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

Information required for the sound usage of a MemPlace.

Variants

Meta(Scalar<Prov>)

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

None

Sized types or unsized extern type

Implementations

impl<Prov: Provenance> MemPlaceMeta<Prov>

pub fn unwrap_meta(self) -> Scalar<Prov>

pub fn has_meta(self) -> bool

Trait Implementations

impl<Prov: Clone + Provenance> Clone for MemPlaceMeta<Prov>

fn clone(&self) -> MemPlaceMeta<Prov>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Prov: Debug + Provenance> Debug for MemPlaceMeta<Prov>

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

Formats the value using the given formatter.

impl<Prov: Hash + Provenance> Hash for MemPlaceMeta<Prov>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,

Feeds a slice of this type into the given Hasher.

impl<Prov: PartialEq + Provenance> PartialEq<MemPlaceMeta<Prov>> for MemPlaceMeta<Prov>

fn eq(&self, other: &MemPlaceMeta<Prov>) -> bool

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

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<Prov: Copy + Provenance> Copy for MemPlaceMeta<Prov>

impl<Prov: Eq + Provenance> Eq for MemPlaceMeta<Prov>

impl<Prov: Provenance> StructuralEq for MemPlaceMeta<Prov>

impl<Prov: Provenance> StructuralPartialEq for MemPlaceMeta<Prov>

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.