Struct rustc_const_eval::interpret::place::MemPlace

pub struct MemPlace<Tag: Provenance = AllocId> {
    pub ptr: Pointer<Option<Tag>>,
    pub align: Align,
    pub meta: MemPlaceMeta<Tag>,
}

Fields

ptr: Pointer<Option<Tag>>

The pointer can be a pure integer, with the None tag.

align: Align

meta: MemPlaceMeta<Tag>

Metadata for unsized places. Interpretation is up to the type. Must not be present for sized types, but can be missing for unsized types (e.g., extern type).

Implementations

impl<Tag: Provenance> MemPlace<Tag>

pub fn from_ptr(ptr: Pointer<Option<Tag>>, align: Align) -> Self

pub fn map_provenance(self, f: impl FnOnce(Option<Tag>) -> Option<Tag>) -> Self

Adjust the provenance of the main pointer (metadata is unaffected).

pub fn to_ref(self, cx: &impl HasDataLayout) -> Immediate<Tag>

Turn a mplace into a (thin or wide) pointer, as a reference, pointing to the same space. This is the inverse of ref_to_mplace.

pub fn offset<'tcx>(
    self,
    offset: Size,
    meta: MemPlaceMeta<Tag>,
    cx: &impl HasDataLayout
) -> InterpResult<'tcx, Self>

Trait Implementations

impl<Tag: Clone + Provenance> Clone for MemPlace<Tag>

fn clone(&self) -> MemPlace<Tag>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Tag: Debug + Provenance> Debug for MemPlace<Tag>

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

Formats the value using the given formatter.

impl<Tag: Hash + Provenance> Hash for MemPlace<Tag>

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<'__ctx, Tag: Provenance> HashStable<StableHashingContext<'__ctx>> for MemPlace<Tag> where
    Tag: HashStable<StableHashingContext<'__ctx>>, 

fn hash_stable(
    &self,
    __hcx: &mut StableHashingContext<'__ctx>,
    __hasher: &mut StableHasher
)

impl<Tag: PartialEq + Provenance> PartialEq<MemPlace<Tag>> for MemPlace<Tag>

fn eq(&self, other: &MemPlace<Tag>) -> bool

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

fn ne(&self, other: &MemPlace<Tag>) -> bool

This method tests for !=.

impl<Tag: Copy + Provenance> Copy for MemPlace<Tag>

impl<Tag: Eq + Provenance> Eq for MemPlace<Tag>

impl<Tag: Provenance> StructuralEq for MemPlace<Tag>

impl<Tag: Provenance> StructuralPartialEq for MemPlace<Tag>

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.