Struct MovePath

Source

pub struct MovePath<'tcx> {
    pub next_sibling: Option<MovePathIndex>,
    pub first_child: Option<MovePathIndex>,
    pub parent: Option<MovePathIndex>,
    pub place: Place<'tcx>,
}

Expand description

MovePath is a canonicalized representation of a place that is of interest to dataflow analysis, as identified by gather_moves. This is primarily places that are moved or inited (assigned). Each MovePath is assigned a MovePathIndex by which it can be referred to.

MovePath follows a tree structure.

Given struct X { m: M, n: N } and x: X, moves like drop x.m; move out of the place x.m.

The MovePaths representing x.m and x.n are siblings (that is, one of them will link to the other via the next_sibling field, and the other will have no entry in its next_sibling field), and they both have the MovePath representing x as their parent. (All tree roots are locals). This structure allows easy traversal between related paths x and x.m and x.n.

Fields§

§next_sibling: Option<MovePathIndex>§first_child: Option<MovePathIndex>§parent: Option<MovePathIndex>§place: Place<'tcx>

Struct MovePath Copy item path

Fields§

Implementations§

impl<'tcx> MovePath<'tcx>

pub fn parents<'a>( &self, move_paths: &'a IndexSlice<MovePathIndex, MovePath<'tcx>>, ) -> impl 'a + Iterator<Item = (MovePathIndex, &'a MovePath<'tcx>)>

pub fn children<'a>( &self, move_paths: &'a IndexSlice<MovePathIndex, MovePath<'tcx>>, ) -> impl 'a + Iterator<Item = (MovePathIndex, &'a MovePath<'tcx>)>

pub fn find_descendant( &self, move_paths: &IndexSlice<MovePathIndex, MovePath<'_>>, f: impl Fn(MovePathIndex) -> bool, ) -> Option<MovePathIndex>

Trait Implementations§

impl<'tcx> Clone for MovePath<'tcx>

fn clone(&self) -> MovePath<'tcx>

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

impl<'tcx> Debug for MovePath<'tcx>

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

impl<'tcx> Display for MovePath<'tcx>

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

Auto Trait Implementations§

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

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

impl<'tcx> DynSend for MovePath<'tcx>

impl<'tcx> DynSync for MovePath<'tcx>

impl<'tcx> Freeze for MovePath<'tcx>

impl<'tcx> Send for MovePath<'tcx>

impl<'tcx> Sync for MovePath<'tcx>

impl<'tcx> Unpin for MovePath<'tcx>

impl<'tcx> UnsafeUnpin for MovePath<'tcx>

Blanket Implementations§

impl<T> Aligned for T

const ALIGN: Alignment

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> CloneToUninit for Twhere T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

impl<T, R> CollectAndApply<T, R> for T

fn collect_and_apply<I, F>(iter: I, f: F) -> Rwhere I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

type Output = R

impl<T> DynClone for Twhere T: Clone,

fn __clone_box(&self, _: Private) -> *mut ()

impl<T> ErasedDestructor for Twhere T: 'static,

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

fn in_current_span(self) -> Instrumented<Self> ⓘ

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

fn into(self) -> U

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘwhere F: FnOnce(&Self) -> bool,

impl<K> IntoQueryKey<K> for K

fn into_query_key(self) -> K

impl<T> MaybeResult<T> for T

type Error = !

fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> Same for T

type Output = T

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

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

impl<T> ToString for Twhere T: Display + ?Sized,

fn to_string(&self) -> String

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<I, T, U> Upcast<I, U> for Twhere U: UpcastFrom<I, T>,

Struct MovePath

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> CloneToUninit for T
where T: Clone,

fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

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

impl<T> ErasedDestructor for T
where T: 'static,

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

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

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

impl<T> ToString for T
where T: Display + ?Sized,

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

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

impl<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

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

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,