[−][src]Struct rustc_data_structures::obligation_forest::Node

pub(in obligation_forest) struct Node<O> {
    obligation: O,
    state: Cell<NodeState>,
    dependents: Vec<usize>,
    has_parent: bool,
    obligation_tree_id: ObligationTreeId,
}

Fields

obligation: Ostate: Cell<NodeState>dependents: Vec<usize>

Obligations that depend on this obligation for their completion. They must all be in a non-pending state.

has_parent: bool

If true, dependents[0] points to a "parent" node, which requires special treatment upon error but is otherwise treated the same. (It would be more idiomatic to store the parent node in a separate Option<usize> field, but that slows down the common case of iterating over the parent and other descendants together.)

obligation_tree_id: ObligationTreeId

Identifier of the obligation tree to which this node belongs.

Implementations

impl<O> Node<O>[src]

pub(in obligation_forest) fn new(
    parent: Option<usize>,
    obligation: O,
    obligation_tree_id: ObligationTreeId
) -> Node<O>[src]

Trait Implementations

impl<O: Debug> Debug for Node<O>[src]

Auto Trait Implementations

impl<O> !RefUnwindSafe for Node<O>

impl<O> Send for Node<O> where
    O: Send, 

impl<O> !Sync for Node<O>

impl<O> Unpin for Node<O> where
    O: Unpin, 

impl<O> UnwindSafe for Node<O> where
    O: UnwindSafe, 

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

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

impl<T> Erased for T[src]

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

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.