Struct DerivedCause

pub struct DerivedCause<'tcx> {
    pub parent_trait_pred: Binder<TyCtxt<'tcx>, TraitPredicate<TyCtxt<'tcx>>>,
    pub parent_code: InternedObligationCauseCode<'tcx>,
}

Fields

parent_trait_pred: Binder<TyCtxt<'tcx>, TraitPredicate<TyCtxt<'tcx>>>

The trait predicate of the parent obligation that led to the current obligation. Note that only trait obligations lead to derived obligations, so we just store the trait predicate here directly.

parent_code: InternedObligationCauseCode<'tcx>

The parent trait had this cause.

Trait Implementations

impl<'tcx> Clone for DerivedCause<'tcx>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for DerivedCause<'tcx>

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

Formats the value using the given formatter.

impl<'tcx, __D> Decodable<__D> for DerivedCause<'tcx>

where __D: TyDecoder<I = TyCtxt<'tcx>>,

fn decode(__decoder: &mut __D) -> DerivedCause<'tcx>

impl<'tcx, __E> Encodable<__E> for DerivedCause<'tcx>

where __E: TyEncoder<I = TyCtxt<'tcx>>,

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

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

fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher<SipHasher128>, )

impl<'tcx> PartialEq for DerivedCause<'tcx>

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

Tests for self and other values to be equal, and is used by ==.

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

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

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

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

where __F: FallibleTypeFolder<TyCtxt<'tcx>>,

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) -> Self

where 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 DerivedCause<'tcx>

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

where __V: TypeVisitor<TyCtxt<'tcx>>,

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

impl<'tcx> Eq for DerivedCause<'tcx>

impl<'tcx> StructuralPartialEq for DerivedCause<'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: 40 bytes