7 files changed, 20 insertions, 18 deletions

diff --git a/crates/ra_hir/src/code_model.rs b/crates/ra_hir/src/code_model.rs
index 534f1f8e9..ae730beb5 100644
--- a/crates/ra_hir/src/code_model.rs
+++ b/crates/ra_hir/src/code_model.rs
@@ -320,7 +320,7 @@ pub struct Struct {
 
 impl Struct {
     pub fn module(self, db: &impl DefDatabase) -> Module {
-        Module { id: self.id.0.module(db) }
+        Module { id: self.id.module(db) }
     }
 
     pub fn krate(self, db: &impl DefDatabase) -> Option<Crate> {
@@ -369,11 +369,11 @@ pub struct Union {
 
 impl Union {
     pub fn name(self, db: &impl DefDatabase) -> Option<Name> {
-        db.struct_data(self.id.into()).name.clone()
+        db.union_data(self.id).name.clone()
     }
 
     pub fn module(self, db: &impl DefDatabase) -> Module {
-        Module { id: self.id.0.module(db) }
+        Module { id: self.id.module(db) }
     }
 
     pub fn ty(self, db: &impl HirDatabase) -> Ty {
diff --git a/crates/ra_hir/src/code_model/src.rs b/crates/ra_hir/src/code_model/src.rs
index a4e317c20..076d86f2b 100644
--- a/crates/ra_hir/src/code_model/src.rs
+++ b/crates/ra_hir/src/code_model/src.rs
@@ -51,13 +51,13 @@ impl HasSource for StructField {
 impl HasSource for Struct {
     type Ast = ast::StructDef;
     fn source(self, db: &impl DefDatabase) -> Source<ast::StructDef> {
-        self.id.0.source(db)
+        self.id.source(db)
     }
 }
 impl HasSource for Union {
-    type Ast = ast::StructDef;
-    fn source(self, db: &impl DefDatabase) -> Source<ast::StructDef> {
-        self.id.0.source(db)
+    type Ast = ast::UnionDef;
+    fn source(self, db: &impl DefDatabase) -> Source<ast::UnionDef> {
+        self.id.source(db)
     }
 }
 impl HasSource for Enum {
diff --git a/crates/ra_hir/src/from_source.rs b/crates/ra_hir/src/from_source.rs
index 1e7c22774..95db7161b 100644
--- a/crates/ra_hir/src/from_source.rs
+++ b/crates/ra_hir/src/from_source.rs
@@ -1,6 +1,6 @@
 //! FIXME: write short doc here
 
-use hir_def::{AstItemDef, LocationCtx, ModuleId, StructId, StructOrUnionId, UnionId};
+use hir_def::{AstItemDef, LocationCtx, ModuleId};
 use hir_expand::{name::AsName, AstId, MacroDefId, MacroDefKind};
 use ra_syntax::{
     ast::{self, AstNode, NameOwner},
@@ -19,19 +19,18 @@ pub trait FromSource: Sized {
     fn from_source(db: &(impl DefDatabase + AstDatabase), src: Source<Self::Ast>) -> Option<Self>;
 }
 
-// FIXIME: these two impls are wrong, `ast::StructDef` might produce either a struct or a union
 impl FromSource for Struct {
     type Ast = ast::StructDef;
     fn from_source(db: &(impl DefDatabase + AstDatabase), src: Source<Self::Ast>) -> Option<Self> {
-        let id: StructOrUnionId = from_source(db, src)?;
-        Some(Struct { id: StructId(id) })
+        let id = from_source(db, src)?;
+        Some(Struct { id })
     }
 }
 impl FromSource for Union {
-    type Ast = ast::StructDef;
+    type Ast = ast::UnionDef;
     fn from_source(db: &(impl DefDatabase + AstDatabase), src: Source<Self::Ast>) -> Option<Self> {
-        let id: StructOrUnionId = from_source(db, src)?;
-        Some(Union { id: UnionId(id) })
+        let id = from_source(db, src)?;
+        Some(Union { id })
     }
 }
 impl FromSource for Enum {
diff --git a/crates/ra_hir/src/ty.rs b/crates/ra_hir/src/ty.rs
index 8c045aaef..3cbcbd1d0 100644
--- a/crates/ra_hir/src/ty.rs
+++ b/crates/ra_hir/src/ty.rs
@@ -858,7 +858,7 @@ impl HirDisplay for ApplicationTy {
                 let name = match def {
                     CallableDef::FunctionId(ff) => f.db.function_data(ff).name.clone(),
                     CallableDef::StructId(s) => {
-                        f.db.struct_data(s.0).name.clone().unwrap_or_else(Name::missing)
+                        f.db.struct_data(s).name.clone().unwrap_or_else(Name::missing)
                     }
                     CallableDef::EnumVariantId(e) => {
                         let enum_data = f.db.enum_data(e.parent);
diff --git a/crates/ra_hir/src/ty/infer/coerce.rs b/crates/ra_hir/src/ty/infer/coerce.rs
index 4b53bba73..bb9a2e427 100644
--- a/crates/ra_hir/src/ty/infer/coerce.rs
+++ b/crates/ra_hir/src/ty/infer/coerce.rs
@@ -246,7 +246,7 @@ impl<'a, D: HirDatabase> InferenceContext<'a, D> {
                 ty_app!(TypeCtor::Adt(Adt::Struct(struct2)), st2),
             ) if struct1 == struct2 => {
                 let field_tys = self.db.field_types(struct1.id.into());
-                let struct_data = self.db.struct_data(struct1.id.0);
+                let struct_data = self.db.struct_data(struct1.id);
 
                 let mut fields = struct_data.variant_data.fields().iter();
                 let (last_field_id, _data) = fields.next_back()?;
diff --git a/crates/ra_hir/src/ty/infer/expr.rs b/crates/ra_hir/src/ty/infer/expr.rs
index 1d6df2b7a..994a6d7e9 100644
--- a/crates/ra_hir/src/ty/infer/expr.rs
+++ b/crates/ra_hir/src/ty/infer/expr.rs
@@ -263,6 +263,8 @@ impl<'a, D: HirDatabase> InferenceContext<'a, D> {
                                 .clone()
                                 .subst(&a_ty.parameters)
                         }),
+                        // FIXME:
+                        TypeCtor::Adt(Adt::Union(_)) => None,
                         _ => None,
                     },
                     _ => None,
diff --git a/crates/ra_hir/src/ty/lower.rs b/crates/ra_hir/src/ty/lower.rs
index 27cfe00c1..eb51d31bd 100644
--- a/crates/ra_hir/src/ty/lower.rs
+++ b/crates/ra_hir/src/ty/lower.rs
@@ -560,7 +560,8 @@ pub(crate) fn field_types_query(
     variant_id: VariantId,
 ) -> Arc<ArenaMap<LocalStructFieldId, Ty>> {
     let (resolver, var_data) = match variant_id {
-        VariantId::StructId(it) => (it.resolver(db), db.struct_data(it.0).variant_data.clone()),
+        VariantId::StructId(it) => (it.resolver(db), db.struct_data(it).variant_data.clone()),
+        VariantId::UnionId(it) => (it.resolver(db), db.union_data(it).variant_data.clone()),
         VariantId::EnumVariantId(it) => (
             it.parent.resolver(db),
             db.enum_data(it.parent).variants[it.local_id].variant_data.clone(),
@@ -818,7 +819,7 @@ 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.0.module(db).krate,
+            CallableDef::StructId(s) => s.module(db).krate,
             CallableDef::EnumVariantId(e) => e.parent.module(db).krate,
         }
     }