Enum rustc_middle::traits::DefiningAnchor

pub enum DefiningAnchor {
    Bind(LocalDefId),
    Bubble,
    Error,
}

Variants

Bind(LocalDefId)

DefId of the item.

Bubble

When opaque types are not resolved, we Bubble up, meaning return the opaque/hidden type pair from query, for caller of query to handle it.

Error

Used to catch type mismatch errors when handling opaque types.

Trait Implementations

impl Clone for DefiningAnchor

fn clone(&self) -> DefiningAnchor

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DefiningAnchor

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

Formats the value using the given formatter.

impl Hash for DefiningAnchor

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for DefiningAnchor

fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher )

impl PartialEq<DefiningAnchor> for DefiningAnchor

fn eq(&self, other: &DefiningAnchor) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'tcx> TypeFoldable<TyCtxt<'tcx>> for DefiningAnchor

fn try_fold_with<__F: FallibleTypeFolder<TyCtxt<'tcx>>>( self, __folder: &mut __F ) -> Result<Self, __F::Error>

The entry point for folding. To fold a value t with a folder f call: t.try_fold_with(f).

fn fold_with<F>(self, folder: &mut F) -> Selfwhere F: TypeFolder<I>,

A convenient alternative to try_fold_with for use with infallible folders. Do not override this method, to ensure coherence with try_fold_with.

impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for DefiningAnchor

fn visit_with<__V: TypeVisitor<TyCtxt<'tcx>>>( &self, __visitor: &mut __V ) -> ControlFlow<__V::BreakTy>

The entry point for visiting. To visit a value t with a visitor v call: t.visit_with(v).

impl Copy for DefiningAnchor

impl Eq for DefiningAnchor

impl StructuralEq for DefiningAnchor

impl StructuralPartialEq for DefiningAnchor

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: 4 bytes

Size for each variant:

• Bind: 4 bytes
• Bubble: 0 bytes
• Error: 0 bytes