Enum rustc_middle::traits::specialization_graph::Node
source · pub enum Node {
Impl(DefId),
Trait(DefId),
}
Expand description
A node in the specialization graph is either an impl or a trait definition; either can serve as a source of item definitions. There is always exactly one trait definition node: the root.
Variants§
Implementations§
source§impl Node
impl Node
pub fn is_from_trait(&self) -> bool
sourcepub fn item<'tcx>(
&self,
tcx: TyCtxt<'tcx>,
trait_item_def_id: DefId
) -> Option<AssocItem>
pub fn item<'tcx>( &self, tcx: TyCtxt<'tcx>, trait_item_def_id: DefId ) -> Option<AssocItem>
Tries to find the associated item that implements trait_item_def_id
defined in this node.
If this returns None
, the item can potentially still be found in
parents of this node.
pub fn def_id(&self) -> DefId
Trait Implementations§
Auto Trait Implementations§
impl RefUnwindSafe for Node
impl Send for Node
impl Sync for Node
impl Unpin for Node
impl UnwindSafe for Node
Blanket Implementations§
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]
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, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
source§impl<P> IntoQueryParam<P> for P
impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
source§impl<'tcx, T> ToPredicate<'tcx, T> for T
impl<'tcx, T> ToPredicate<'tcx, T> for T
fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T
source§impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
impl<Tcx, T> Value<Tcx> for Twhere Tcx: DepContext,
default fn from_cycle_error( tcx: Tcx, cycle: &[QueryInfo], _guar: ErrorGuaranteed ) -> T
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: 12 bytes
Size for each variant:
Impl
: 8 bytesTrait
: 8 bytes