6 files changed, 18 insertions, 19 deletions

diff --git a/crates/ra_hir/src/adt.rs b/crates/ra_hir/src/adt.rs
index 0436d20b7..945f236c2 100644
--- a/crates/ra_hir/src/adt.rs
+++ b/crates/ra_hir/src/adt.rs
@@ -12,7 +12,7 @@ use crate::{
 
 impl Struct {
     pub(crate) fn variant_data(self, db: &impl DefDatabase) -> Arc<VariantData> {
-        db.struct_data(self.id).variant_data.clone()
+        db.struct_data(self.id.into()).variant_data.clone()
     }
 }
 
diff --git a/crates/ra_hir/src/code_model.rs b/crates/ra_hir/src/code_model.rs
index 9d0db8024..e5bfad3ca 100644
--- a/crates/ra_hir/src/code_model.rs
+++ b/crates/ra_hir/src/code_model.rs
@@ -288,7 +288,7 @@ pub struct Struct {
 
 impl Struct {
     pub fn module(self, db: &impl DefDatabase) -> Module {
-        Module { id: self.id.module(db) }
+        Module { id: self.id.0.module(db) }
     }
 
     pub fn krate(self, db: &impl DefDatabase) -> Option<Crate> {
@@ -296,11 +296,11 @@ impl Struct {
     }
 
     pub fn name(self, db: &impl DefDatabase) -> Option<Name> {
-        db.struct_data(self.id).name.clone()
+        db.struct_data(self.id.into()).name.clone()
     }
 
     pub fn fields(self, db: &impl HirDatabase) -> Vec<StructField> {
-        db.struct_data(self.id)
+        db.struct_data(self.id.into())
             .variant_data
             .fields()
             .into_iter()
@@ -310,7 +310,7 @@ impl Struct {
     }
 
     pub fn field(self, db: &impl HirDatabase, name: &Name) -> Option<StructField> {
-        db.struct_data(self.id)
+        db.struct_data(self.id.into())
             .variant_data
             .fields()
             .into_iter()
@@ -346,11 +346,11 @@ pub struct Union {
 
 impl Union {
     pub fn name(self, db: &impl DefDatabase) -> Option<Name> {
-        db.union_data(self.id).name.clone()
+        db.struct_data(self.id.into()).name.clone()
     }
 
     pub fn module(self, db: &impl HirDatabase) -> Module {
-        Module { id: self.id.module(db) }
+        Module { id: self.id.0.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 6d116ee75..247ae3e55 100644
--- a/crates/ra_hir/src/code_model/src.rs
+++ b/crates/ra_hir/src/code_model/src.rs
@@ -78,13 +78,13 @@ impl HasSource for StructField {
 impl HasSource for Struct {
     type Ast = ast::StructDef;
     fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::StructDef> {
-        self.id.source(db)
+        self.id.0.source(db)
     }
 }
 impl HasSource for Union {
     type Ast = ast::StructDef;
     fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::StructDef> {
-        self.id.source(db)
+        self.id.0.source(db)
     }
 }
 impl HasSource for Enum {
diff --git a/crates/ra_hir/src/expr/scope.rs b/crates/ra_hir/src/expr/scope.rs
index c14c2ab66..5a1eade2c 100644
--- a/crates/ra_hir/src/expr/scope.rs
+++ b/crates/ra_hir/src/expr/scope.rs
@@ -67,10 +67,7 @@ impl ExprScopes {
         &self.scopes[scope].entries
     }
 
-    pub(crate) fn scope_chain<'a>(
-        &'a self,
-        scope: Option<ScopeId>,
-    ) -> impl Iterator<Item = ScopeId> + 'a {
+    pub(crate) fn scope_chain(&self, scope: Option<ScopeId>) -> impl Iterator<Item = ScopeId> + '_ {
         std::iter::successors(scope, move |&scope| self.scopes[scope].parent)
     }
 
diff --git a/crates/ra_hir/src/from_source.rs b/crates/ra_hir/src/from_source.rs
index 9899bdbbc..c95d2cdd0 100644
--- a/crates/ra_hir/src/from_source.rs
+++ b/crates/ra_hir/src/from_source.rs
@@ -1,5 +1,6 @@
 //! FIXME: write short doc here
 
+use hir_def::{StructId, StructOrUnionId, UnionId};
 use hir_expand::name::AsName;
 use ra_syntax::ast::{self, AstNode, NameOwner};
 
@@ -15,18 +16,19 @@ 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 = from_source(db, src)?;
-        Some(Struct { id })
+        let id: StructOrUnionId = from_source(db, src)?;
+        Some(Struct { id: StructId(id) })
     }
 }
 impl FromSource for Union {
     type Ast = ast::StructDef;
     fn from_source(db: &(impl DefDatabase + AstDatabase), src: Source<Self::Ast>) -> Option<Self> {
-        let id = from_source(db, src)?;
-        Some(Union { id })
+        let id: StructOrUnionId = from_source(db, src)?;
+        Some(Union { id: UnionId(id) })
     }
 }
 impl FromSource for Enum {
diff --git a/crates/ra_hir/src/ty/lower.rs b/crates/ra_hir/src/ty/lower.rs
index d26b16cb2..1fed5025e 100644
--- a/crates/ra_hir/src/ty/lower.rs
+++ b/crates/ra_hir/src/ty/lower.rs
@@ -665,7 +665,7 @@ fn type_for_builtin(def: BuiltinType) -> Ty {
 }
 
 fn fn_sig_for_struct_constructor(db: &impl HirDatabase, def: Struct) -> FnSig {
-    let struct_data = db.struct_data(def.id);
+    let struct_data = db.struct_data(def.id.into());
     let fields = match struct_data.variant_data.fields() {
         Some(fields) => fields,
         None => panic!("fn_sig_for_struct_constructor called on unit struct"),
@@ -681,7 +681,7 @@ fn fn_sig_for_struct_constructor(db: &impl HirDatabase, def: Struct) -> FnSig {
 
 /// Build the type of a tuple struct constructor.
 fn type_for_struct_constructor(db: &impl HirDatabase, def: Struct) -> Ty {
-    let struct_data = db.struct_data(def.id);
+    let struct_data = db.struct_data(def.id.into());
     if struct_data.variant_data.fields().is_none() {
         return type_for_adt(db, def); // Unit struct
     }