# Struct rustc_data_structures::graph::vec_graph::VecGraph

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    pub struct VecGraph<N: Idx> {
        node_starts: IndexVec<N, usize>,
        edge_targets: Vec<N>,
    }

## Fields§

§`node_starts: IndexVec<N, usize>`

Maps from a given node to an index where the set of successors for that node starts. The index indexes into the `edges` vector. To find the range for a given node, we look up the start for that node and then the start for the next node (i.e., with an index 1 higher) and get the range between the two. This vector always has an extra entry so that this works even for the max element.

§`edge_targets: Vec<N>`

## Implementations§

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### impl<N: Idx + Ord> VecGraph<N>

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#### pub fn new(num_nodes: usize, edge_pairs: Vec<(N, N)>) -> Self

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#### pub fn successors(&self, source: N) -> &[N]

Gets the successors for `source` as a slice.

## Trait Implementations§

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### impl<N: Idx> DirectedGraph for VecGraph<N>

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#### type Node = N

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### impl<'graph, N: Idx> GraphSuccessors<'graph> for VecGraph<N>

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#### type Item = N

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#### type Iter = Cloned<Iter<'graph, N>>

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### impl<N: Idx> WithNumEdges for VecGraph<N>

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#### fn num_edges(&self) -> usize

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### impl<N: Idx> WithNumNodes for VecGraph<N>

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#### fn num_nodes(&self) -> usize

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### impl<N: Idx + Ord> WithSuccessors for VecGraph<N>

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#### fn successors(&self, node: N) -> <Self as GraphSuccessors<'_>>::Iter

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#### fn depth_first_search(&self, from: Self::Node) -> DepthFirstSearch<'_, Self> ⓘ
where Self: WithNumNodes,

## Auto Trait Implementations§

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### impl<N> DynSend for VecGraph<N>
where N: DynSend,

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### impl<N> DynSync for VecGraph<N>
where N: DynSync,

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### impl<N> Freeze for VecGraph<N>

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### impl<N> RefUnwindSafe for VecGraph<N>
where N: RefUnwindSafe,

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### impl<N> Send for VecGraph<N>
where N: Send,

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### impl<N> Sync for VecGraph<N>
where N: Sync,

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### impl<N> Unpin for VecGraph<N>
where N: Unpin,

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### impl<N> UnwindSafe for VecGraph<N>
where N: UnwindSafe,

## Blanket Implementations§

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### impl<T> Aligned for T

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#### const ALIGN: Alignment = const ALIGN: Alignment = Alignment::of::<Self>();

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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### impl<T> BorrowMut<T> for T
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> From<T> for T

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

Instruments this type with the current `Span`, returning an `Instrumented` wrapper. Read more
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### impl<T, U> Into<U> for T
where U: From<T>,

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#### fn into(self) -> U

Calls `U::from(self)`.

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

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### impl<T> Pointable for T

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

Dereferences the given pointer. Read more
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#### unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

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

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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### impl<T> WithSubscriber for T

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

Attaches the provided `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more
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#### fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more
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### impl<'a, T> Captures<'a> for T
where T: ?Sized,

## Layout§

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: 48 bytes