Struct rustc_middle::traits::ImplDerivedObligationCause

pub struct ImplDerivedObligationCause<'tcx> {
    pub derived: DerivedObligationCause<'tcx>,
    pub impl_or_alias_def_id: DefId,
    pub impl_def_predicate_index: Option<usize>,
    pub span: Span,
}

Fields

derived: DerivedObligationCause<'tcx>

impl_or_alias_def_id: DefId

The DefId of the impl that gave rise to the derived obligation. If the derived obligation arose from a trait alias, which conceptually has a synthetic impl, then this will be the DefId of that trait alias. Care should therefore be taken to handle that exceptional case where appropriate.

impl_def_predicate_index: Option<usize>

The index of the derived predicate in the parent impl’s predicates.

span: Span

Trait Implementations

impl<'tcx> Clone for ImplDerivedObligationCause<'tcx>

fn clone(&self) -> ImplDerivedObligationCause<'tcx>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for ImplDerivedObligationCause<'tcx>

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

Formats the value using the given formatter.

impl<'tcx, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for ImplDerivedObligationCause<'tcx>

fn decode(__decoder: &mut __D) -> Self

impl<'tcx, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for ImplDerivedObligationCause<'tcx>

fn encode(&self, __encoder: &mut __E)

impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for ImplDerivedObligationCause<'tcx>

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

impl<'tcx> PartialEq for ImplDerivedObligationCause<'tcx>

fn eq(&self, other: &ImplDerivedObligationCause<'tcx>) -> 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 ImplDerivedObligationCause<'tcx>

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 ImplDerivedObligationCause<'tcx>

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<'tcx> Eq for ImplDerivedObligationCause<'tcx>

impl<'tcx> StructuralEq for ImplDerivedObligationCause<'tcx>

impl<'tcx> StructuralPartialEq for ImplDerivedObligationCause<'tcx>

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: 72 bytes