struct Node<O> {
obligation: O,
state: Cell<NodeState>,
dependents: Vec<usize>,
has_parent: bool,
obligation_tree_id: ObligationTreeId,
}
Fields§
§obligation: O
§state: 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§
Trait Implementations§
Auto Trait Implementations§
impl<O> !Freeze for Node<O>
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§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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 moresource§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
Layout§
Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.