Trait rustc_trait_selection::infer::canonical::ir::Interner

source ·

pub trait Interner: Sized + Copy + IrPrint<AliasTy<Self>> + IrPrint<AliasTerm<Self>> + IrPrint<TraitRef<Self>> + IrPrint<TraitPredicate<Self>> + IrPrint<ExistentialTraitRef<Self>> + IrPrint<ExistentialProjection<Self>> + IrPrint<ProjectionPredicate<Self>> + IrPrint<NormalizesTo<Self>> + IrPrint<SubtypePredicate<Self>> + IrPrint<CoercePredicate<Self>> + IrPrint<FnSig<Self>> {
Show 103 associated items
    type DefId: DefId<Self>;
    type LocalDefId: Copy + Debug + Hash + Eq + Into<Self::DefId> + TypeFoldable<Self>;
    type GenericArgs: GenericArgs<Self>;
    type GenericArgsSlice: Copy + Debug + Hash + Eq + SliceLike<Item = Self::GenericArg>;
    type GenericArg: GenericArg<Self>;
    type Term: Term<Self>;
    type BoundVarKinds: Copy + Debug + Hash + Eq + SliceLike<Item = Self::BoundVarKind> + Default;
    type BoundVarKind: Copy + Debug + Hash + Eq;
    type PredefinedOpaques: Copy + Debug + Hash + Eq + TypeFoldable<Self> + Deref<Target = PredefinedOpaquesData<Self>>;
    type DefiningOpaqueTypes: Copy + Debug + Hash + Default + Eq + TypeVisitable<Self> + SliceLike<Item = Self::LocalDefId>;
    type CanonicalGoalEvaluationStepRef: Copy + Debug + Hash + Eq + Deref<Target = CanonicalGoalEvaluationStep<Self>>;
    type CanonicalVars: Copy + Debug + Hash + Eq + SliceLike<Item = CanonicalVarInfo<Self>> + Default;
    type ExternalConstraints: Copy + Debug + Hash + Eq + TypeFoldable<Self> + Deref<Target = ExternalConstraintsData<Self>>;
    type DepNodeIndex;
    type Ty: Ty<Self>;
    type Tys: Tys<Self>;
    type FnInputTys: Copy + Debug + Hash + Eq + SliceLike<Item = Self::Ty> + TypeVisitable<Self>;
    type ParamTy: Copy + Debug + Hash + Eq + ParamLike;
    type BoundTy: Copy + Debug + Hash + Eq + BoundVarLike<Self>;
    type PlaceholderTy: PlaceholderLike;
    type ErrorGuaranteed: Copy + Debug + Hash + Eq;
    type BoundExistentialPredicates: BoundExistentialPredicates<Self>;
    type AllocId: Copy + Debug + Hash + Eq;
    type Pat: Copy + Debug + Hash + Eq + Relate<Self>;
    type Safety: Safety<Self>;
    type Abi: Abi<Self>;
    type Const: Const<Self>;
    type PlaceholderConst: PlaceholderLike;
    type ParamConst: Copy + Debug + Hash + Eq + ParamLike;
    type BoundConst: Copy + Debug + Hash + Eq + BoundVarLike<Self>;
    type ValueConst: Copy + Debug + Hash + Eq;
    type ExprConst: Copy + Debug + Hash + Eq + Relate<Self>;
    type Region: Region<Self>;
    type EarlyParamRegion: Copy + Debug + Hash + Eq + ParamLike;
    type LateParamRegion: Copy + Debug + Hash + Eq;
    type BoundRegion: Copy + Debug + Hash + Eq + BoundVarLike<Self>;
    type PlaceholderRegion: PlaceholderLike;
    type ParamEnv: ParamEnv<Self>;
    type Predicate: Predicate<Self>;
    type Clause: Clause<Self>;
    type Clauses: Copy + Debug + Hash + Eq + TypeSuperVisitable<Self> + Flags;
    type EvaluationCache: EvaluationCache<Self>;
    type GenericsOf: GenericsOf<Self>;
    type VariancesOf: Copy + Debug + SliceLike<Item = Variance>;
    type AdtDef: AdtDef<Self>;
    type Features: Features<Self>;
    type UnsizingParams: Deref<Target = BitSet<u32>>;

    // Required methods
    fn mk_predefined_opaques_in_body(
        self,
        data: PredefinedOpaquesData<Self>,
    ) -> Self::PredefinedOpaques;
    fn mk_canonical_var_infos(
        self,
        infos: &[CanonicalVarInfo<Self>],
    ) -> Self::CanonicalVars;
    fn mk_external_constraints(
        self,
        data: ExternalConstraintsData<Self>,
    ) -> Self::ExternalConstraints;
    fn with_cached_task<T>(
        self,
        task: impl FnOnce() -> T,
    ) -> (T, Self::DepNodeIndex);
    fn evaluation_cache(self, mode: SolverMode) -> Self::EvaluationCache;
    fn expand_abstract_consts<T>(self, t: T) -> T
       where T: TypeFoldable<Self>;
    fn generics_of(self, def_id: Self::DefId) -> Self::GenericsOf;
    fn variances_of(self, def_id: Self::DefId) -> Self::VariancesOf;
    fn type_of(self, def_id: Self::DefId) -> EarlyBinder<Self, Self::Ty>;
    fn adt_def(self, adt_def_id: Self::DefId) -> Self::AdtDef;
    fn alias_ty_kind(self, alias: AliasTy<Self>) -> AliasTyKind;
    fn alias_term_kind(self, alias: AliasTerm<Self>) -> AliasTermKind;
    fn trait_ref_and_own_args_for_alias(
        self,
        def_id: Self::DefId,
        args: Self::GenericArgs,
    ) -> (TraitRef<Self>, Self::GenericArgsSlice);
    fn mk_args(self, args: &[Self::GenericArg]) -> Self::GenericArgs;
    fn mk_args_from_iter<I, T>(
        self,
        args: I,
    ) -> <T as CollectAndApply<Self::GenericArg, Self::GenericArgs>>::Output
       where I: Iterator<Item = T>,
             T: CollectAndApply<Self::GenericArg, Self::GenericArgs>;
    fn check_args_compatible(
        self,
        def_id: Self::DefId,
        args: Self::GenericArgs,
    ) -> bool;
    fn debug_assert_args_compatible(
        self,
        def_id: Self::DefId,
        args: Self::GenericArgs,
    );
    fn intern_canonical_goal_evaluation_step(
        self,
        step: CanonicalGoalEvaluationStep<Self>,
    ) -> Self::CanonicalGoalEvaluationStepRef;
    fn mk_type_list_from_iter<I, T>(
        self,
        args: I,
    ) -> <T as CollectAndApply<Self::Ty, Self::Tys>>::Output
       where I: Iterator<Item = T>,
             T: CollectAndApply<Self::Ty, Self::Tys>;
    fn parent(self, def_id: Self::DefId) -> Self::DefId;
    fn recursion_limit(self) -> usize;
    fn features(self) -> Self::Features;
    fn bound_coroutine_hidden_types(
        self,
        def_id: Self::DefId,
    ) -> impl IntoIterator<Item = EarlyBinder<Self, Binder<Self, Self::Ty>>>;
    fn fn_sig(
        self,
        def_id: Self::DefId,
    ) -> EarlyBinder<Self, Binder<Self, FnSig<Self>>>;
    fn coroutine_movability(self, def_id: Self::DefId) -> Movability;
    fn coroutine_for_closure(self, def_id: Self::DefId) -> Self::DefId;
    fn generics_require_sized_self(self, def_id: Self::DefId) -> bool;
    fn item_bounds(
        self,
        def_id: Self::DefId,
    ) -> EarlyBinder<Self, impl IntoIterator<Item = Self::Clause>>;
    fn predicates_of(
        self,
        def_id: Self::DefId,
    ) -> EarlyBinder<Self, impl IntoIterator<Item = Self::Clause>>;
    fn own_predicates_of(
        self,
        def_id: Self::DefId,
    ) -> EarlyBinder<Self, impl IntoIterator<Item = Self::Clause>>;
    fn super_predicates_of(
        self,
        def_id: Self::DefId,
    ) -> EarlyBinder<Self, impl IntoIterator<Item = Self::Clause>>;
    fn has_target_features(self, def_id: Self::DefId) -> bool;
    fn require_lang_item(self, lang_item: TraitSolverLangItem) -> Self::DefId;
    fn is_lang_item(
        self,
        def_id: Self::DefId,
        lang_item: TraitSolverLangItem,
    ) -> bool;
    fn associated_type_def_ids(
        self,
        def_id: Self::DefId,
    ) -> impl IntoIterator<Item = Self::DefId>;
    fn args_may_unify_deep(
        self,
        obligation_args: Self::GenericArgs,
        impl_args: Self::GenericArgs,
    ) -> bool;
    fn for_each_relevant_impl(
        self,
        trait_def_id: Self::DefId,
        self_ty: Self::Ty,
        f: impl FnMut(Self::DefId),
    );
    fn has_item_definition(self, def_id: Self::DefId) -> bool;
    fn impl_is_default(self, impl_def_id: Self::DefId) -> bool;
    fn impl_trait_ref(
        self,
        impl_def_id: Self::DefId,
    ) -> EarlyBinder<Self, TraitRef<Self>>;
    fn impl_polarity(self, impl_def_id: Self::DefId) -> ImplPolarity;
    fn trait_is_auto(self, trait_def_id: Self::DefId) -> bool;
    fn trait_is_alias(self, trait_def_id: Self::DefId) -> bool;
    fn trait_is_object_safe(self, trait_def_id: Self::DefId) -> bool;
    fn trait_may_be_implemented_via_object(
        self,
        trait_def_id: Self::DefId,
    ) -> bool;
    fn fn_trait_kind_from_def_id(
        self,
        trait_def_id: Self::DefId,
    ) -> Option<ClosureKind>;
    fn async_fn_trait_kind_from_def_id(
        self,
        trait_def_id: Self::DefId,
    ) -> Option<ClosureKind>;
    fn supertrait_def_ids(
        self,
        trait_def_id: Self::DefId,
    ) -> impl IntoIterator<Item = Self::DefId>;
    fn delay_bug(self, msg: impl ToString) -> Self::ErrorGuaranteed;
    fn is_general_coroutine(self, coroutine_def_id: Self::DefId) -> bool;
    fn coroutine_is_async(self, coroutine_def_id: Self::DefId) -> bool;
    fn coroutine_is_gen(self, coroutine_def_id: Self::DefId) -> bool;
    fn coroutine_is_async_gen(self, coroutine_def_id: Self::DefId) -> bool;
    fn layout_is_pointer_like(
        self,
        param_env: Self::ParamEnv,
        ty: Self::Ty,
    ) -> bool;
    fn unsizing_params_for_adt(
        self,
        adt_def_id: Self::DefId,
    ) -> Self::UnsizingParams;
    fn find_const_ty_from_env(
        self,
        param_env: Self::ParamEnv,
        placeholder: Self::PlaceholderConst,
    ) -> Self::Ty;
}