Struct rustc_mir_dataflow::move_paths::MovePath

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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 path that is moved or assigned to.

It 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.

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

Implementations§

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impl<'tcx> MovePath<'tcx>

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

Returns an iterator over the parents of self.

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

Returns an iterator over the immediate children of self.

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

Finds the closest descendant of self for which f returns true using a breadth-first search.

f will not be called on self.

Trait Implementations§

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

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

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'tcx> Debug for MovePath<'tcx>

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

Formats the value using the given formatter. Read more
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impl<'tcx> Display for MovePath<'tcx>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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

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

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

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

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

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

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

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

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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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,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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fn filterable( self, filter_name: &'static str ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more
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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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type Error = !

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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Dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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type Owned = T

The resulting type after obtaining ownership.
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type Error = Infallible

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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 32 bytes