pub trait HirDatabase: Database + HasQueryGroup<HirDatabaseStorage> + DefDatabase + Upcast<dyn DefDatabase> {
Show methods
fn infer(&self, key0: DefWithBodyId) -> Arc<InferenceResult>;
fn infer_query(&self, key0: DefWithBodyId) -> Arc<InferenceResult>;
fn ty(&self, key0: TyDefId) -> Binders<Ty>;
fn value_ty(&self, key0: ValueTyDefId) -> Binders<Ty>;
fn impl_self_ty(&self, key0: ImplId) -> Binders<Ty>;
fn const_param_ty(&self, key0: ConstParamId) -> Ty;
fn impl_trait(&self, key0: ImplId) -> Option<Binders<TraitRef>>;
fn field_types(
&self,
key0: VariantId
) -> Arc<ArenaMap<LocalFieldId, Binders<Ty>>>;
fn callable_item_signature(&self, key0: CallableDefId) -> PolyFnSig;
fn return_type_impl_traits(
&self,
key0: FunctionId
) -> Option<Arc<Binders<ReturnTypeImplTraits>>>;
fn generic_predicates_for_param(
&self,
key0: TypeParamId
) -> Arc<[Binders<QuantifiedWhereClause>]>;
fn generic_predicates(
&self,
key0: GenericDefId
) -> Arc<[Binders<QuantifiedWhereClause>]>;
fn trait_environment(&self, key0: GenericDefId) -> Arc<TraitEnvironment>;
fn generic_defaults(&self, key0: GenericDefId) -> Arc<[Binders<Ty>]>;
fn inherent_impls_in_crate(&self, key0: CrateId) -> Arc<InherentImpls>;
fn trait_impls_in_crate(&self, key0: CrateId) -> Arc<TraitImpls>;
fn trait_impls_in_block(&self, key0: BlockId) -> Option<Arc<TraitImpls>>;
fn trait_impls_in_deps(&self, key0: CrateId) -> Arc<TraitImpls>;
fn intern_callable_def(&self, key0: CallableDefId) -> InternedCallableDefId;
fn lookup_intern_callable_def(
&self,
key0: InternedCallableDefId
) -> CallableDefId;
fn intern_type_param_id(&self, key0: TypeParamId) -> InternedTypeParamId;
fn lookup_intern_type_param_id(
&self,
key0: InternedTypeParamId
) -> TypeParamId;
fn intern_lifetime_param_id(
&self,
key0: LifetimeParamId
) -> InternedLifetimeParamId;
fn lookup_intern_lifetime_param_id(
&self,
key0: InternedLifetimeParamId
) -> LifetimeParamId;
fn intern_const_param_id(&self, key0: ConstParamId) -> InternedConstParamId;
fn lookup_intern_const_param_id(
&self,
key0: InternedConstParamId
) -> ConstParamId;
fn intern_impl_trait_id(&self, key0: ImplTraitId) -> InternedOpaqueTyId;
fn lookup_intern_impl_trait_id(
&self,
key0: InternedOpaqueTyId
) -> ImplTraitId;
fn intern_closure(&self, key0: (DefWithBodyId, ExprId)) -> InternedClosureId;
fn lookup_intern_closure(
&self,
key0: InternedClosureId
) -> (DefWithBodyId, ExprId);
fn associated_ty_data(
&self,
key0: AssocTypeId<Interner>
) -> Arc<AssociatedTyDatum<Interner>>;
fn trait_datum(
&self,
key0: CrateId,
key1: TraitId<Interner>
) -> Arc<TraitDatum<Interner>>;
fn struct_datum(
&self,
key0: CrateId,
key1: AdtId<Interner>
) -> Arc<AdtDatum<Interner>>;
fn impl_datum(
&self,
key0: CrateId,
key1: ImplId<Interner>
) -> Arc<ImplDatum<Interner>>;
fn fn_def_datum(
&self,
key0: CrateId,
key1: FnDefId
) -> Arc<FnDefDatum<Interner>>;
fn fn_def_variance(&self, key0: FnDefId) -> Variances<Interner>;
fn adt_variance(&self, key0: AdtId<Interner>) -> Variances<Interner>;
fn associated_ty_value(
&self,
key0: CrateId,
key1: AssociatedTyValueId<Interner>
) -> Arc<AssociatedTyValue<Interner>>;
fn trait_solve(
&self,
key0: CrateId,
key1: Canonical<InEnvironment<Goal>>
) -> Option<Solution>;
fn trait_solve_query(
&self,
key0: CrateId,
key1: Canonical<InEnvironment<Goal>>
) -> Option<Solution>;
fn program_clauses_for_chalk_env(
&self,
key0: CrateId,
key1: Environment<Interner>
) -> ProgramClauses<Interner>;
}
Gets the variances for the substitution of a fn def
Gets the variances for the substitution of a adt