Struct rustc_trait_selection::traits::wf::WfPredicates

struct WfPredicates<'a, 'tcx> {
    infcx: &'a InferCtxt<'tcx>,
    param_env: ParamEnv<'tcx>,
    body_id: LocalDefId,
    span: Span,
    out: Vec<PredicateObligation<'tcx>>,
    recursion_depth: usize,
    item: Option<&'tcx Item<'tcx>>,
}

Fields

infcx: &'a InferCtxt<'tcx>

param_env: ParamEnv<'tcx>

body_id: LocalDefId

span: Span

out: Vec<PredicateObligation<'tcx>>

recursion_depth: usize

item: Option<&'tcx Item<'tcx>>

Implementations

impl<'a, 'tcx> WfPredicates<'a, 'tcx>

fn tcx(&self) -> TyCtxt<'tcx>

fn cause(&self, code: ObligationCauseCode<'tcx>) -> ObligationCause<'tcx>

fn normalize(self, infcx: &InferCtxt<'tcx>) -> Vec<PredicateObligation<'tcx>>

fn compute_trait_pred( &mut self, trait_pred: TraitPredicate<'tcx>, elaborate: Elaborate )

Pushes the obligations required for trait_ref to be WF into self.out.

fn compute_negative_trait_pred(&mut self, trait_ref: TraitRef<'tcx>)

fn compute_alias(&mut self, data: AliasTy<'tcx>)

Pushes the obligations required for an alias (except inherent) to be WF into self.out.

fn compute_inherent_projection(&mut self, data: AliasTy<'tcx>)

Pushes the obligations required for an inherent alias to be WF into self.out.

fn compute_projection_args(&mut self, args: GenericArgsRef<'tcx>)

fn require_sized(&mut self, subty: Ty<'tcx>, cause: ObligationCauseCode<'tcx>)

fn compute(&mut self, arg: GenericArg<'tcx>)

Pushes all the predicates needed to validate that ty is WF into out.

fn nominal_obligations( &mut self, def_id: DefId, args: GenericArgsRef<'tcx> ) -> Vec<PredicateObligation<'tcx>>

fn from_object_ty( &mut self, ty: Ty<'tcx>, data: &'tcx List<PolyExistentialPredicate<'tcx>>, region: Region<'tcx> )

Trait Implementations

impl<'a, 'tcx> TypeVisitor<TyCtxt<'tcx>> for WfPredicates<'a, 'tcx>

type Result = ()

fn visit_ty(&mut self, t: Ty<'tcx>) -> Self::Result

fn visit_const(&mut self, c: Const<'tcx>) -> Self::Result

fn visit_predicate(&mut self, _p: Predicate<'tcx>) -> Self::Result

fn visit_binder<T>(&mut self, t: &<I as Interner>::Binder<T>) -> Self::Result

where T: TypeVisitable<I>,

fn visit_region(&mut self, _r: <I as Interner>::Region) -> Self::Result

fn visit_clauses(&mut self, p: <I as Interner>::Clauses) -> Self::Result

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