Struct rustc_middle::mir::Place[][src]

pub struct Place<'tcx> {
    pub local: Local,
    pub projection: &'tcx List<PlaceElem<'tcx>>,

A path to a value; something that can be evaluated without changing or disturbing program state.


local: Localprojection: &'tcx List<PlaceElem<'tcx>>

projection out of a place (access a field, deref a pointer, etc)


impl<'tcx> Place<'tcx>[src]

pub fn ty_from<D>(
    local: Local,
    projection: &[PlaceElem<'tcx>],
    local_decls: &D,
    tcx: TyCtxt<'tcx>
) -> PlaceTy<'tcx> where
    D: HasLocalDecls<'tcx>, 

pub fn ty<D>(&self, local_decls: &D, tcx: TyCtxt<'tcx>) -> PlaceTy<'tcx> where
    D: HasLocalDecls<'tcx>, 

impl<'tcx> Place<'tcx>[src]

pub fn return_place() -> Place<'tcx>[src]

pub fn is_indirect(&self) -> bool[src]

Returns true if this Place contains a Deref projection.

If Place::is_indirect returns false, the caller knows that the Place refers to the same region of memory as its base.

pub fn local_or_deref_local(&self) -> Option<Local>[src]

Finds the innermost Local from this Place, if it is either a local itself or a single deref of a local.

pub fn as_local(&self) -> Option<Local>[src]

If this place represents a local variable like _X with no projections, return Some(_X).

pub fn as_ref(&self) -> PlaceRef<'tcx>[src]

pub fn iter_projections(
) -> impl Iterator<Item = (PlaceRef<'tcx>, PlaceElem<'tcx>)> + DoubleEndedIterator

Iterate over the projections in evaluation order, i.e., the first element is the base with its projection and then subsequently more projections are added. As a concrete example, given the place a.b.c, this would yield:

  • (a, .b)
  • (a.b, .c)

Given a place without projections, the iterator is empty.

Trait Implementations

impl<'tcx> Clone for Place<'tcx>[src]

impl<'tcx> Copy for Place<'tcx>[src]

impl Debug for Place<'_>[src]

impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for Place<'tcx>[src]

impl<'tcx, __E: TyEncoder<'tcx>> Encodable<__E> for Place<'tcx>[src]

impl<'tcx> Eq for Place<'tcx>[src]

impl From<Local> for Place<'_>[src]

impl<'tcx> Hash for Place<'tcx>[src]

impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for Place<'tcx>[src]

impl<'tcx> Ord for Place<'tcx>[src]

impl<'tcx> PartialEq<Place<'tcx>> for Place<'tcx>[src]

impl<'tcx> PartialOrd<Place<'tcx>> for Place<'tcx>[src]

impl<'tcx> StructuralEq for Place<'tcx>[src]

impl<'tcx> StructuralPartialEq for Place<'tcx>[src]

impl<'tcx> TypeFoldable<'tcx> for Place<'tcx>[src]

Auto Trait Implementations

impl<'tcx> !RefUnwindSafe for Place<'tcx>

impl<'tcx> !Send for Place<'tcx>

impl<'tcx> !Sync for Place<'tcx>

impl<'tcx> Unpin for Place<'tcx>

impl<'tcx> !UnwindSafe for Place<'tcx>

Blanket Implementations

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

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

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

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<'a, T> Captures<'a> for T where
    T: ?Sized

impl<T> From<T> for T[src]

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

impl<T> MaybeResult<T> for T[src]

type Error = !

impl<'tcx, T> Subst<'tcx> for T where
    T: TypeFoldable<'tcx>, 

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

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

type Error = Infallible

The type returned in the event of a conversion error.

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

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

The type returned in the event of a conversion error.

impl<T> WithConstness for T[src]