14 files changed, 123 insertions, 79 deletions

diff --git a/crates/ra_hir/src/code_model.rs b/crates/ra_hir/src/code_model.rs
index 8588aa5a3..c705d1630 100644
--- a/crates/ra_hir/src/code_model.rs
+++ b/crates/ra_hir/src/code_model.rs
@@ -11,7 +11,7 @@ use hir_def::{
     per_ns::PerNs,
     resolver::HasResolver,
     type_ref::{Mutability, TypeRef},
-    AdtId, AstItemDef, ConstId, ContainerId, DefWithBodyId, EnumId, FunctionId, HasModule, ImplId,
+    AdtId, ConstId, ContainerId, DefWithBodyId, EnumId, FunctionId, HasModule, ImplId,
     LocalEnumVariantId, LocalImportId, LocalModuleId, LocalStructFieldId, Lookup, ModuleId,
     StaticId, StructId, TraitId, TypeAliasId, TypeParamId, UnionId,
 };
@@ -309,11 +309,11 @@ impl Union {
     }
 
     pub fn module(self, db: &impl DefDatabase) -> Module {
-        Module { id: self.id.module(db) }
+        Module { id: self.id.lookup(db).container }
     }
 
     pub fn ty(self, db: &impl HirDatabase) -> Type {
-        Type::from_def(db, self.id.module(db).krate, self.id)
+        Type::from_def(db, self.id.lookup(db).container.krate, self.id)
     }
 
     pub fn fields(self, db: &impl HirDatabase) -> Vec<StructField> {
@@ -337,7 +337,7 @@ pub struct Enum {
 
 impl Enum {
     pub fn module(self, db: &impl DefDatabase) -> Module {
-        Module { id: self.id.module(db) }
+        Module { id: self.id.lookup(db).container }
     }
 
     pub fn krate(self, db: &impl DefDatabase) -> Option<Crate> {
@@ -357,7 +357,7 @@ impl Enum {
     }
 
     pub fn ty(self, db: &impl HirDatabase) -> Type {
-        Type::from_def(db, self.id.module(db).krate, self.id)
+        Type::from_def(db, self.id.lookup(db).container.krate, self.id)
     }
 }
 
diff --git a/crates/ra_hir/src/from_source.rs b/crates/ra_hir/src/from_source.rs
index 978326c74..f7411c5cf 100644
--- a/crates/ra_hir/src/from_source.rs
+++ b/crates/ra_hir/src/from_source.rs
@@ -1,7 +1,7 @@
 //! FIXME: write short doc here
 use hir_def::{
-    child_by_source::ChildBySource, dyn_map::DynMap, keys, nameres::ModuleSource, AstItemDef,
-    EnumVariantId, GenericDefId, LocationCtx, ModuleId, VariantId,
+    child_by_source::ChildBySource, dyn_map::DynMap, keys, nameres::ModuleSource, EnumVariantId,
+    GenericDefId, ModuleId, VariantId,
 };
 use hir_expand::{name::AsName, AstId, MacroDefId, MacroDefKind};
 use ra_syntax::{
@@ -32,15 +32,19 @@ impl FromSource for Struct {
 impl FromSource for Union {
     type Ast = ast::UnionDef;
     fn from_source(db: &(impl DefDatabase + AstDatabase), src: InFile<Self::Ast>) -> Option<Self> {
-        let id = from_source(db, src)?;
-        Some(Union { id })
+        analyze_container(db, src.as_ref().map(|it| it.syntax()))[keys::UNION]
+            .get(&src)
+            .copied()
+            .map(Union::from)
     }
 }
 impl FromSource for Enum {
     type Ast = ast::EnumDef;
     fn from_source(db: &(impl DefDatabase + AstDatabase), src: InFile<Self::Ast>) -> Option<Self> {
-        let id = from_source(db, src)?;
-        Some(Enum { id })
+        analyze_container(db, src.as_ref().map(|it| it.syntax()))[keys::ENUM]
+            .get(&src)
+            .copied()
+            .map(Enum::from)
     }
 }
 impl FromSource for Trait {
@@ -250,19 +254,6 @@ impl Module {
     }
 }
 
-fn from_source<N, DEF>(db: &(impl DefDatabase + AstDatabase), src: InFile<N>) -> Option<DEF>
-where
-    N: AstNode,
-    DEF: AstItemDef<N>,
-{
-    let module_src = ModuleSource::from_child_node(db, src.as_ref().map(|it| it.syntax()));
-    let module = Module::from_definition(db, InFile::new(src.file_id, module_src))?;
-    let ctx = LocationCtx::new(db, module.id, src.file_id);
-    let items = db.ast_id_map(src.file_id);
-    let item_id = items.ast_id(&src.value);
-    Some(DEF::from_ast_id(ctx, item_id))
-}
-
 fn analyze_container(db: &impl DefDatabase, src: InFile<&SyntaxNode>) -> DynMap {
     _analyze_container(db, src).unwrap_or_default()
 }
diff --git a/crates/ra_hir/src/has_source.rs b/crates/ra_hir/src/has_source.rs
index 8f35a3fbb..72afecf26 100644
--- a/crates/ra_hir/src/has_source.rs
+++ b/crates/ra_hir/src/has_source.rs
@@ -4,7 +4,7 @@ use either::Either;
 use hir_def::{
     nameres::ModuleSource,
     src::{HasChildSource, HasSource as _},
-    AstItemDef, Lookup, VariantId,
+    Lookup, VariantId,
 };
 use ra_syntax::ast;
 
@@ -57,13 +57,13 @@ impl HasSource for Struct {
 impl HasSource for Union {
     type Ast = ast::UnionDef;
     fn source(self, db: &impl DefDatabase) -> InFile<ast::UnionDef> {
-        self.id.source(db)
+        self.id.lookup(db).source(db)
     }
 }
 impl HasSource for Enum {
     type Ast = ast::EnumDef;
     fn source(self, db: &impl DefDatabase) -> InFile<ast::EnumDef> {
-        self.id.source(db)
+        self.id.lookup(db).source(db)
     }
 }
 impl HasSource for EnumVariant {
diff --git a/crates/ra_hir_def/src/adt.rs b/crates/ra_hir_def/src/adt.rs
index ef2b20f1e..ec3d57d1a 100644
--- a/crates/ra_hir_def/src/adt.rs
+++ b/crates/ra_hir_def/src/adt.rs
@@ -11,9 +11,8 @@ use ra_arena::{map::ArenaMap, Arena};
 use ra_syntax::ast::{self, NameOwner, TypeAscriptionOwner};
 
 use crate::{
-    db::DefDatabase, src::HasChildSource, src::HasSource, trace::Trace, type_ref::TypeRef,
-    AstItemDef, EnumId, LocalEnumVariantId, LocalStructFieldId, Lookup, StructId, UnionId,
-    VariantId,
+    db::DefDatabase, src::HasChildSource, src::HasSource, trace::Trace, type_ref::TypeRef, EnumId,
+    LocalEnumVariantId, LocalStructFieldId, Lookup, StructId, UnionId, VariantId,
 };
 
 /// Note that we use `StructData` for unions as well!
@@ -58,7 +57,7 @@ impl StructData {
         Arc::new(StructData { name, variant_data })
     }
     pub(crate) fn union_data_query(db: &impl DefDatabase, id: UnionId) -> Arc<StructData> {
-        let src = id.source(db);
+        let src = id.lookup(db).source(db);
         let name = src.value.name().map_or_else(Name::missing, |n| n.as_name());
         let variant_data = VariantData::new(
             src.value
@@ -73,7 +72,7 @@ impl StructData {
 
 impl EnumData {
     pub(crate) fn enum_data_query(db: &impl DefDatabase, e: EnumId) -> Arc<EnumData> {
-        let src = e.source(db);
+        let src = e.lookup(db).source(db);
         let name = src.value.name().map_or_else(Name::missing, |n| n.as_name());
         let mut trace = Trace::new_for_arena();
         lower_enum(&mut trace, &src.value);
@@ -90,7 +89,7 @@ impl HasChildSource for EnumId {
     type ChildId = LocalEnumVariantId;
     type Value = ast::EnumVariant;
     fn child_source(&self, db: &impl DefDatabase) -> InFile<ArenaMap<Self::ChildId, Self::Value>> {
-        let src = self.source(db);
+        let src = self.lookup(db).source(db);
         let mut trace = Trace::new_for_map();
         lower_enum(&mut trace, &src.value);
         src.with_value(trace.into_map())
@@ -155,7 +154,7 @@ impl HasChildSource for VariantId {
                 src.map(|map| map[it.local_id].kind())
             }
             VariantId::StructId(it) => it.lookup(db).source(db).map(|it| it.kind()),
-            VariantId::UnionId(it) => it.source(db).map(|it| {
+            VariantId::UnionId(it) => it.lookup(db).source(db).map(|it| {
                 it.record_field_def_list()
                     .map(ast::StructKind::Record)
                     .unwrap_or(ast::StructKind::Unit)
diff --git a/crates/ra_hir_def/src/attr.rs b/crates/ra_hir_def/src/attr.rs
index d2aa5ce8f..5bf82e191 100644
--- a/crates/ra_hir_def/src/attr.rs
+++ b/crates/ra_hir_def/src/attr.rs
@@ -12,8 +12,7 @@ use ra_syntax::{
 use tt::Subtree;
 
 use crate::{
-    db::DefDatabase, path::Path, src::HasChildSource, src::HasSource, AdtId, AstItemDef, AttrDefId,
-    Lookup,
+    db::DefDatabase, path::Path, src::HasChildSource, src::HasSource, AdtId, AttrDefId, Lookup,
 };
 
 #[derive(Default, Debug, Clone, PartialEq, Eq)]
@@ -57,8 +56,8 @@ impl Attrs {
             }
             AttrDefId::AdtId(it) => match it {
                 AdtId::StructId(it) => attrs_from_loc(it.lookup(db), db),
-                AdtId::EnumId(it) => attrs_from_ast(it.lookup_intern(db).ast_id, db),
-                AdtId::UnionId(it) => attrs_from_ast(it.lookup_intern(db).ast_id, db),
+                AdtId::EnumId(it) => attrs_from_loc(it.lookup(db), db),
+                AdtId::UnionId(it) => attrs_from_loc(it.lookup(db), db),
             },
             AttrDefId::TraitId(it) => attrs_from_loc(it.lookup(db), db),
             AttrDefId::MacroDefId(it) => {
diff --git a/crates/ra_hir_def/src/child_by_source.rs b/crates/ra_hir_def/src/child_by_source.rs
index eba361578..3c9379b15 100644
--- a/crates/ra_hir_def/src/child_by_source.rs
+++ b/crates/ra_hir_def/src/child_by_source.rs
@@ -103,8 +103,14 @@ impl ChildBySource for ModuleId {
                         let src = strukt.lookup(db).source(db);
                         res[keys::STRUCT].insert(src, strukt)
                     }
-                    AdtId::UnionId(_) => (),
-                    AdtId::EnumId(_) => (),
+                    AdtId::UnionId(union_) => {
+                        let src = union_.lookup(db).source(db);
+                        res[keys::UNION].insert(src, union_)
+                    }
+                    AdtId::EnumId(enum_) => {
+                        let src = enum_.lookup(db).source(db);
+                        res[keys::ENUM].insert(src, enum_)
+                    }
                 },
                 _ => (),
             }
diff --git a/crates/ra_hir_def/src/db.rs b/crates/ra_hir_def/src/db.rs
index e120c7768..98bff6cb7 100644
--- a/crates/ra_hir_def/src/db.rs
+++ b/crates/ra_hir_def/src/db.rs
@@ -3,7 +3,7 @@ use std::sync::Arc;
 
 use hir_expand::{db::AstDatabase, HirFileId};
 use ra_db::{salsa, CrateId, SourceDatabase};
-use ra_syntax::{ast, SmolStr};
+use ra_syntax::SmolStr;
 
 use crate::{
     adt::{EnumData, StructData},
@@ -17,9 +17,9 @@ use crate::{
         raw::{ImportSourceMap, RawItems},
         CrateDefMap,
     },
-    AttrDefId, ConstId, ConstLoc, DefWithBodyId, EnumId, FunctionId, FunctionLoc, GenericDefId,
-    ImplId, ImplLoc, ItemLoc, ModuleId, StaticId, StaticLoc, StructId, StructLoc, TraitId,
-    TraitLoc, TypeAliasId, TypeAliasLoc, UnionId,
+    AttrDefId, ConstId, ConstLoc, DefWithBodyId, EnumId, EnumLoc, FunctionId, FunctionLoc,
+    GenericDefId, ImplId, ImplLoc, ModuleId, StaticId, StaticLoc, StructId, StructLoc, TraitId,
+    TraitLoc, TypeAliasId, TypeAliasLoc, UnionId, UnionLoc,
 };
 
 #[salsa::query_group(InternDatabaseStorage)]
@@ -29,9 +29,9 @@ pub trait InternDatabase: SourceDatabase {
     #[salsa::interned]
     fn intern_struct(&self, loc: StructLoc) -> StructId;
     #[salsa::interned]
-    fn intern_union(&self, loc: ItemLoc<ast::UnionDef>) -> UnionId;
+    fn intern_union(&self, loc: UnionLoc) -> UnionId;
     #[salsa::interned]
-    fn intern_enum(&self, loc: ItemLoc<ast::EnumDef>) -> EnumId;
+    fn intern_enum(&self, loc: EnumLoc) -> EnumId;
     #[salsa::interned]
     fn intern_const(&self, loc: ConstLoc) -> ConstId;
     #[salsa::interned]
diff --git a/crates/ra_hir_def/src/docs.rs b/crates/ra_hir_def/src/docs.rs
index 58143b894..b29f142e3 100644
--- a/crates/ra_hir_def/src/docs.rs
+++ b/crates/ra_hir_def/src/docs.rs
@@ -11,7 +11,7 @@ use ra_syntax::ast;
 use crate::{
     db::DefDatabase,
     src::{HasChildSource, HasSource},
-    AdtId, AstItemDef, AttrDefId, Lookup,
+    AdtId, AttrDefId, Lookup,
 };
 
 /// Holds documentation
@@ -52,8 +52,8 @@ impl Documentation {
             }
             AttrDefId::AdtId(it) => match it {
                 AdtId::StructId(it) => docs_from_ast(&it.lookup(db).source(db).value),
-                AdtId::EnumId(it) => docs_from_ast(&it.source(db).value),
-                AdtId::UnionId(it) => docs_from_ast(&it.source(db).value),
+                AdtId::EnumId(it) => docs_from_ast(&it.lookup(db).source(db).value),
+                AdtId::UnionId(it) => docs_from_ast(&it.lookup(db).source(db).value),
             },
             AttrDefId::EnumVariantId(it) => {
                 let src = it.parent.child_source(db);
diff --git a/crates/ra_hir_def/src/generics.rs b/crates/ra_hir_def/src/generics.rs
index f1ce8d59a..e502dd798 100644
--- a/crates/ra_hir_def/src/generics.rs
+++ b/crates/ra_hir_def/src/generics.rs
@@ -21,7 +21,7 @@ use crate::{
     src::HasChildSource,
     src::HasSource,
     type_ref::{TypeBound, TypeRef},
-    AdtId, AstItemDef, GenericDefId, LocalTypeParamId, Lookup, TypeParamId,
+    AdtId, GenericDefId, LocalTypeParamId, Lookup, TypeParamId,
 };
 
 /// Data about a generic parameter (to a function, struct, impl, ...).
@@ -76,12 +76,12 @@ impl GenericParams {
                 src.file_id
             }
             GenericDefId::AdtId(AdtId::UnionId(it)) => {
-                let src = it.source(db);
+                let src = it.lookup(db).source(db);
                 generics.fill(&mut sm, &src.value);
                 src.file_id
             }
             GenericDefId::AdtId(AdtId::EnumId(it)) => {
-                let src = it.source(db);
+                let src = it.lookup(db).source(db);
                 generics.fill(&mut sm, &src.value);
                 src.file_id
             }
diff --git a/crates/ra_hir_def/src/keys.rs b/crates/ra_hir_def/src/keys.rs
index 758cf8097..ada145379 100644
--- a/crates/ra_hir_def/src/keys.rs
+++ b/crates/ra_hir_def/src/keys.rs
@@ -9,7 +9,7 @@ use rustc_hash::FxHashMap;
 use crate::{
     dyn_map::{DynMap, Policy},
     ConstId, EnumVariantId, FunctionId, ImplId, StaticId, StructFieldId, StructId, TraitId,
-    TypeAliasId, TypeParamId,
+    TypeAliasId, TypeParamId, EnumId, UnionId,
 };
 
 type Key<K, V> = crate::dyn_map::Key<InFile<K>, V, AstPtrPolicy<K, V>>;
@@ -21,6 +21,8 @@ pub const TYPE_ALIAS: Key<ast::TypeAliasDef, TypeAliasId> = Key::new();
 pub const IMPL: Key<ast::ImplBlock, ImplId> = Key::new();
 pub const TRAIT: Key<ast::TraitDef, TraitId> = Key::new();
 pub const STRUCT: Key<ast::StructDef, StructId> = Key::new();
+pub const UNION: Key<ast::UnionDef, UnionId> = Key::new();
+pub const ENUM: Key<ast::EnumDef, EnumId> = Key::new();
 
 pub const ENUM_VARIANT: Key<ast::EnumVariant, EnumVariantId> = Key::new();
 pub const TUPLE_FIELD: Key<ast::TupleFieldDef, StructFieldId> = Key::new();
diff --git a/crates/ra_hir_def/src/lib.rs b/crates/ra_hir_def/src/lib.rs
index 1a599706a..c9e4e6a0f 100644
--- a/crates/ra_hir_def/src/lib.rs
+++ b/crates/ra_hir_def/src/lib.rs
@@ -173,24 +173,48 @@ impl Lookup for StructId {
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct UnionId(salsa::InternId);
 impl_intern_key!(UnionId);
-impl AstItemDef<ast::UnionDef> for UnionId {
-    fn intern(db: &impl InternDatabase, loc: ItemLoc<ast::UnionDef>) -> Self {
-        db.intern_union(loc)
+
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+pub struct UnionLoc {
+    pub container: ModuleId,
+    pub ast_id: AstId<ast::UnionDef>,
+}
+
+impl Intern for UnionLoc {
+    type ID = UnionId;
+    fn intern(self, db: &impl db::DefDatabase) -> UnionId {
+        db.intern_union(self)
     }
-    fn lookup_intern(self, db: &impl InternDatabase) -> ItemLoc<ast::UnionDef> {
-        db.lookup_intern_union(self)
+}
+
+impl Lookup for UnionId {
+    type Data = UnionLoc;
+    fn lookup(&self, db: &impl db::DefDatabase) -> UnionLoc {
+        db.lookup_intern_union(*self)
     }
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct EnumId(salsa::InternId);
 impl_intern_key!(EnumId);
-impl AstItemDef<ast::EnumDef> for EnumId {
-    fn intern(db: &impl InternDatabase, loc: ItemLoc<ast::EnumDef>) -> Self {
-        db.intern_enum(loc)
+
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+pub struct EnumLoc {
+    pub container: ModuleId,
+    pub ast_id: AstId<ast::EnumDef>,
+}
+
+impl Intern for EnumLoc {
+    type ID = EnumId;
+    fn intern(self, db: &impl db::DefDatabase) -> EnumId {
+        db.intern_enum(self)
     }
-    fn lookup_intern(self, db: &impl InternDatabase) -> ItemLoc<ast::EnumDef> {
-        db.lookup_intern_enum(self)
+}
+
+impl Lookup for EnumId {
+    type Data = EnumLoc;
+    fn lookup(&self, db: &impl db::DefDatabase) -> EnumLoc {
+        db.lookup_intern_enum(*self)
     }
 }
 
@@ -545,8 +569,8 @@ impl HasModule for AdtId {
     fn module(&self, db: &impl db::DefDatabase) -> ModuleId {
         match self {
             AdtId::StructId(it) => it.lookup(db).container,
-            AdtId::UnionId(it) => it.module(db),
-            AdtId::EnumId(it) => it.module(db),
+            AdtId::UnionId(it) => it.lookup(db).container,
+            AdtId::EnumId(it) => it.lookup(db).container,
         }
     }
 }
@@ -569,7 +593,7 @@ impl HasModule for GenericDefId {
             GenericDefId::TraitId(it) => it.lookup(db).container,
             GenericDefId::TypeAliasId(it) => it.lookup(db).module(db),
             GenericDefId::ImplId(it) => it.lookup(db).container,
-            GenericDefId::EnumVariantId(it) => it.parent.module(db),
+            GenericDefId::EnumVariantId(it) => it.parent.lookup(db).container,
             GenericDefId::ConstId(it) => it.lookup(db).module(db),
         }
     }
diff --git a/crates/ra_hir_def/src/nameres/collector.rs b/crates/ra_hir_def/src/nameres/collector.rs
index 602ec0911..04aadead1 100644
--- a/crates/ra_hir_def/src/nameres/collector.rs
+++ b/crates/ra_hir_def/src/nameres/collector.rs
@@ -24,9 +24,9 @@ use crate::{
     },
     path::{Path, PathKind},
     per_ns::PerNs,
-    AdtId, AstId, AstItemDef, ConstLoc, ContainerId, EnumId, EnumVariantId, FunctionLoc, ImplLoc,
-    Intern, LocalImportId, LocalModuleId, LocationCtx, ModuleDefId, ModuleId, StaticLoc, StructLoc,
-    TraitLoc, TypeAliasLoc, UnionId,
+    AdtId, AstId, ConstLoc, ContainerId, EnumLoc, EnumVariantId, FunctionLoc, ImplLoc, Intern,
+    LocalImportId, LocalModuleId, ModuleDefId, ModuleId, StaticLoc, StructLoc, TraitLoc,
+    TypeAliasLoc, UnionLoc,
 };
 
 pub(super) fn collect_defs(db: &impl DefDatabase, mut def_map: CrateDefMap) -> CrateDefMap {
@@ -753,8 +753,6 @@ where
 
     fn define_def(&mut self, def: &raw::DefData, attrs: &Attrs) {
         let module = ModuleId { krate: self.def_collector.def_map.krate, local_id: self.module_id };
-        let ctx = LocationCtx::new(self.def_collector.db, module, self.file_id);
-
         // FIXME: check attrs to see if this is an attribute macro invocation;
         // in which case we don't add the invocation, just a single attribute
         // macro invocation
@@ -778,10 +776,15 @@ where
                 PerNs::both(def.into(), def.into())
             }
             raw::DefKind::Union(ast_id) => {
-                let id = UnionId::from_ast_id(ctx, ast_id).into();
-                PerNs::both(id, id)
+                let def = UnionLoc { container: module, ast_id: AstId::new(self.file_id, ast_id) }
+                    .intern(self.def_collector.db);
+                PerNs::both(def.into(), def.into())
+            }
+            raw::DefKind::Enum(ast_id) => {
+                let def = EnumLoc { container: module, ast_id: AstId::new(self.file_id, ast_id) }
+                    .intern(self.def_collector.db);
+                PerNs::types(def.into())
             }
-            raw::DefKind::Enum(ast_id) => PerNs::types(EnumId::from_ast_id(ctx, ast_id).into()),
             raw::DefKind::Const(ast_id) => {
                 let def = ConstLoc {
                     container: ContainerId::ModuleId(module),
diff --git a/crates/ra_hir_def/src/src.rs b/crates/ra_hir_def/src/src.rs
index 7e212adb1..20200d1db 100644
--- a/crates/ra_hir_def/src/src.rs
+++ b/crates/ra_hir_def/src/src.rs
@@ -5,7 +5,8 @@ use ra_arena::map::ArenaMap;
 use ra_syntax::ast;
 
 use crate::{
-    db::DefDatabase, ConstLoc, FunctionLoc, ImplLoc, StaticLoc, StructLoc, TraitLoc, TypeAliasLoc,
+    db::DefDatabase, ConstLoc, EnumLoc, FunctionLoc, ImplLoc, StaticLoc, StructLoc, TraitLoc,
+    TypeAliasLoc, UnionLoc,
 };
 
 pub trait HasSource {
@@ -76,6 +77,24 @@ impl HasSource for StructLoc {
     }
 }
 
+impl HasSource for UnionLoc {
+    type Value = ast::UnionDef;
+
+    fn source(&self, db: &impl DefDatabase) -> InFile<ast::UnionDef> {
+        let node = self.ast_id.to_node(db);
+        InFile::new(self.ast_id.file_id, node)
+    }
+}
+
+impl HasSource for EnumLoc {
+    type Value = ast::EnumDef;
+
+    fn source(&self, db: &impl DefDatabase) -> InFile<ast::EnumDef> {
+        let node = self.ast_id.to_node(db);
+        InFile::new(self.ast_id.file_id, node)
+    }
+}
+
 pub trait HasChildSource {
     type ChildId;
     type Value;
diff --git a/crates/ra_hir_ty/src/lower.rs b/crates/ra_hir_ty/src/lower.rs
index 6af5bf50a..5f795bc02 100644
--- a/crates/ra_hir_ty/src/lower.rs
+++ b/crates/ra_hir_ty/src/lower.rs
@@ -14,7 +14,7 @@ use hir_def::{
     path::{GenericArg, Path, PathKind, PathSegment},
     resolver::{HasResolver, Resolver, TypeNs},
     type_ref::{TypeBound, TypeRef},
-    AdtId, AstItemDef, ConstId, EnumId, EnumVariantId, FunctionId, GenericDefId, HasModule, ImplId,
+    AdtId, ConstId, EnumId, EnumVariantId, FunctionId, GenericDefId, HasModule, ImplId,
     LocalStructFieldId, Lookup, StaticId, StructId, TraitId, TypeAliasId, UnionId, VariantId,
 };
 use ra_arena::map::ArenaMap;
@@ -698,10 +698,11 @@ impl_froms!(CallableDef: FunctionId, StructId, EnumVariantId);
 impl CallableDef {
     pub fn krate(self, db: &impl HirDatabase) -> CrateId {
         match self {
-            CallableDef::FunctionId(f) => f.lookup(db).module(db).krate,
-            CallableDef::StructId(s) => s.lookup(db).container.krate,
-            CallableDef::EnumVariantId(e) => e.parent.module(db).krate,
+            CallableDef::FunctionId(f) => f.lookup(db).module(db),
+            CallableDef::StructId(s) => s.lookup(db).container,
+            CallableDef::EnumVariantId(e) => e.parent.lookup(db).container,
         }
+        .krate
     }
 }