Merge #2608

2608: Support for nested traits r=matklad a=matklad



Co-authored-by: Aleksey Kladov <[email protected]>

5 files changed, 96 insertions, 40 deletions

diff --git a/crates/ra_hir_def/src/body/lower.rs b/crates/ra_hir_def/src/body/lower.rs
index 17efa10e2..853e17bae 100644
--- a/crates/ra_hir_def/src/body/lower.rs
+++ b/crates/ra_hir_def/src/body/lower.rs
@@ -25,7 +25,8 @@ use crate::{
     path::GenericArgs,
     path::Path,
     type_ref::{Mutability, TypeRef},
-    ContainerId, DefWithBodyId, FunctionLoc, Intern,
+    ConstLoc, ContainerId, DefWithBodyId, EnumLoc, FunctionLoc, Intern, ModuleDefId, StaticLoc,
+    StructLoc, TraitLoc, TypeAliasLoc, UnionLoc,
 };
 
 pub(super) fn lower(
@@ -492,14 +493,45 @@ where
     fn collect_block_items(&mut self, block: &ast::Block) {
         let container = ContainerId::DefWithBodyId(self.def);
         for item in block.items() {
-            match item {
+            let def: ModuleDefId = match item {
                 ast::ModuleItem::FnDef(def) => {
                     let ast_id = self.expander.ast_id(&def);
-                    self.body.defs.push(FunctionLoc { container, ast_id }.intern(self.db).into())
+                    FunctionLoc { container: container.into(), ast_id }.intern(self.db).into()
                 }
-                // FIXME: handle other items
-                _ => (),
-            }
+                ast::ModuleItem::TypeAliasDef(def) => {
+                    let ast_id = self.expander.ast_id(&def);
+                    TypeAliasLoc { container: container.into(), ast_id }.intern(self.db).into()
+                }
+                ast::ModuleItem::ConstDef(def) => {
+                    let ast_id = self.expander.ast_id(&def);
+                    ConstLoc { container: container.into(), ast_id }.intern(self.db).into()
+                }
+                ast::ModuleItem::StaticDef(def) => {
+                    let ast_id = self.expander.ast_id(&def);
+                    StaticLoc { container, ast_id }.intern(self.db).into()
+                }
+                ast::ModuleItem::StructDef(def) => {
+                    let ast_id = self.expander.ast_id(&def);
+                    StructLoc { container, ast_id }.intern(self.db).into()
+                }
+                ast::ModuleItem::EnumDef(def) => {
+                    let ast_id = self.expander.ast_id(&def);
+                    EnumLoc { container, ast_id }.intern(self.db).into()
+                }
+                ast::ModuleItem::UnionDef(def) => {
+                    let ast_id = self.expander.ast_id(&def);
+                    UnionLoc { container, ast_id }.intern(self.db).into()
+                }
+                ast::ModuleItem::TraitDef(def) => {
+                    let ast_id = self.expander.ast_id(&def);
+                    TraitLoc { container, ast_id }.intern(self.db).into()
+                }
+                ast::ModuleItem::ImplBlock(_)
+                | ast::ModuleItem::UseItem(_)
+                | ast::ModuleItem::ExternCrateItem(_)
+                | ast::ModuleItem::Module(_) => continue,
+            };
+            self.body.defs.push(def)
         }
     }
 
diff --git a/crates/ra_hir_def/src/data.rs b/crates/ra_hir_def/src/data.rs
index 4f4ef57cc..14e86936b 100644
--- a/crates/ra_hir_def/src/data.rs
+++ b/crates/ra_hir_def/src/data.rs
@@ -12,8 +12,8 @@ use crate::{
     db::DefDatabase,
     src::HasSource,
     type_ref::{Mutability, TypeRef},
-    AssocItemId, ConstId, ConstLoc, ContainerId, FunctionId, FunctionLoc, ImplId, Intern, Lookup,
-    StaticId, TraitId, TypeAliasId, TypeAliasLoc,
+    AssocContainerId, AssocItemId, ConstId, ConstLoc, FunctionId, FunctionLoc, ImplId, Intern,
+    Lookup, StaticId, TraitId, TypeAliasId, TypeAliasLoc,
 };
 
 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -99,7 +99,7 @@ impl TraitData {
         let auto = src.value.is_auto();
         let ast_id_map = db.ast_id_map(src.file_id);
 
-        let container = ContainerId::TraitId(tr);
+        let container = AssocContainerId::TraitId(tr);
         let items = if let Some(item_list) = src.value.item_list() {
             item_list
                 .impl_items()
@@ -180,7 +180,7 @@ impl ImplData {
                 .map(|item_node| match item_node {
                     ast::ImplItem::FnDef(it) => {
                         let def = FunctionLoc {
-                            container: ContainerId::ImplId(id),
+                            container: AssocContainerId::ImplId(id),
                             ast_id: AstId::new(src.file_id, items.ast_id(&it)),
                         }
                         .intern(db);
@@ -188,7 +188,7 @@ impl ImplData {
                     }
                     ast::ImplItem::ConstDef(it) => {
                         let def = ConstLoc {
-                            container: ContainerId::ImplId(id),
+                            container: AssocContainerId::ImplId(id),
                             ast_id: AstId::new(src.file_id, items.ast_id(&it)),
                         }
                         .intern(db);
@@ -196,7 +196,7 @@ impl ImplData {
                     }
                     ast::ImplItem::TypeAliasDef(it) => {
                         let def = TypeAliasLoc {
-                            container: ContainerId::ImplId(id),
+                            container: AssocContainerId::ImplId(id),
                             ast_id: AstId::new(src.file_id, items.ast_id(&it)),
                         }
                         .intern(db);
diff --git a/crates/ra_hir_def/src/lib.rs b/crates/ra_hir_def/src/lib.rs
index 4fc3127c4..140eccf26 100644
--- a/crates/ra_hir_def/src/lib.rs
+++ b/crates/ra_hir_def/src/lib.rs
@@ -71,7 +71,7 @@ impl_intern_key!(FunctionId);
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct FunctionLoc {
-    pub container: ContainerId,
+    pub container: AssocContainerId,
     pub ast_id: AstId<ast::FnDef>,
 }
 
@@ -95,7 +95,7 @@ impl_intern_key!(StructId);
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct StructLoc {
-    pub container: ModuleId,
+    pub container: ContainerId,
     pub ast_id: AstId<ast::StructDef>,
 }
 
@@ -119,7 +119,7 @@ impl_intern_key!(UnionId);
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct UnionLoc {
-    pub container: ModuleId,
+    pub container: ContainerId,
     pub ast_id: AstId<ast::UnionDef>,
 }
 
@@ -143,7 +143,7 @@ impl_intern_key!(EnumId);
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct EnumLoc {
-    pub container: ModuleId,
+    pub container: ContainerId,
     pub ast_id: AstId<ast::EnumDef>,
 }
 
@@ -187,7 +187,7 @@ pub struct ConstId(salsa::InternId);
 impl_intern_key!(ConstId);
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct ConstLoc {
-    pub container: ContainerId,
+    pub container: AssocContainerId,
     pub ast_id: AstId<ast::ConstDef>,
 }
 
@@ -211,7 +211,7 @@ impl_intern_key!(StaticId);
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct StaticLoc {
-    pub container: ModuleId,
+    pub container: ContainerId,
     pub ast_id: AstId<ast::StaticDef>,
 }
 
@@ -235,7 +235,7 @@ impl_intern_key!(TraitId);
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct TraitLoc {
-    pub container: ModuleId,
+    pub container: ContainerId,
     pub ast_id: AstId<ast::TraitDef>,
 }
 
@@ -259,7 +259,7 @@ impl_intern_key!(TypeAliasId);
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct TypeAliasLoc {
-    pub container: ContainerId,
+    pub container: AssocContainerId,
     pub ast_id: AstId<ast::TypeAliasDef>,
 }
 
@@ -333,10 +333,16 @@ impl_arena_id!(LocalTypeParamId);
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub enum ContainerId {
     ModuleId(ModuleId),
+    DefWithBodyId(DefWithBodyId),
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum AssocContainerId {
+    ContainerId(ContainerId),
     ImplId(ImplId),
     TraitId(TraitId),
-    DefWithBodyId(DefWithBodyId),
 }
+impl_froms!(AssocContainerId: ContainerId);
 
 /// A Data Type
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
@@ -483,13 +489,21 @@ impl HasModule for ContainerId {
     fn module(&self, db: &impl db::DefDatabase) -> ModuleId {
         match *self {
             ContainerId::ModuleId(it) => it,
-            ContainerId::ImplId(it) => it.lookup(db).container,
-            ContainerId::TraitId(it) => it.lookup(db).container,
             ContainerId::DefWithBodyId(it) => it.module(db),
         }
     }
 }
 
+impl HasModule for AssocContainerId {
+    fn module(&self, db: &impl db::DefDatabase) -> ModuleId {
+        match *self {
+            AssocContainerId::ContainerId(it) => it.module(db),
+            AssocContainerId::ImplId(it) => it.lookup(db).container,
+            AssocContainerId::TraitId(it) => it.lookup(db).container.module(db),
+        }
+    }
+}
+
 impl HasModule for FunctionLoc {
     fn module(&self, db: &impl db::DefDatabase) -> ModuleId {
         self.container.module(db)
@@ -515,6 +529,7 @@ impl HasModule for AdtId {
             AdtId::UnionId(it) => it.lookup(db).container,
             AdtId::EnumId(it) => it.lookup(db).container,
         }
+        .module(db)
     }
 }
 
@@ -533,17 +548,17 @@ impl HasModule for GenericDefId {
         match self {
             GenericDefId::FunctionId(it) => it.lookup(db).module(db),
             GenericDefId::AdtId(it) => it.module(db),
-            GenericDefId::TraitId(it) => it.lookup(db).container,
+            GenericDefId::TraitId(it) => it.lookup(db).container.module(db),
             GenericDefId::TypeAliasId(it) => it.lookup(db).module(db),
             GenericDefId::ImplId(it) => it.lookup(db).container,
-            GenericDefId::EnumVariantId(it) => it.parent.lookup(db).container,
+            GenericDefId::EnumVariantId(it) => it.parent.lookup(db).container.module(db),
             GenericDefId::ConstId(it) => it.lookup(db).module(db),
         }
     }
 }
 
 impl HasModule for StaticLoc {
-    fn module(&self, _db: &impl db::DefDatabase) -> ModuleId {
-        self.container
+    fn module(&self, db: &impl db::DefDatabase) -> ModuleId {
+        self.container.module(db)
     }
 }
diff --git a/crates/ra_hir_def/src/nameres/collector.rs b/crates/ra_hir_def/src/nameres/collector.rs
index 8bbf7ffa2..a1ea130e0 100644
--- a/crates/ra_hir_def/src/nameres/collector.rs
+++ b/crates/ra_hir_def/src/nameres/collector.rs
@@ -760,10 +760,11 @@ where
         self.collect_derives(attrs, def);
 
         let name = def.name.clone();
+        let container = ContainerId::ModuleId(module);
         let def: PerNs = match def.kind {
             raw::DefKind::Function(ast_id) => {
                 let def = FunctionLoc {
-                    container: ContainerId::ModuleId(module),
+                    container: container.into(),
                     ast_id: AstId::new(self.file_id, ast_id),
                 }
                 .intern(self.def_collector.db);
@@ -771,23 +772,23 @@ where
                 PerNs::values(def.into())
             }
             raw::DefKind::Struct(ast_id) => {
-                let def = StructLoc { container: module, ast_id: AstId::new(self.file_id, ast_id) }
+                let def = StructLoc { container, ast_id: AstId::new(self.file_id, ast_id) }
                     .intern(self.def_collector.db);
                 PerNs::both(def.into(), def.into())
             }
             raw::DefKind::Union(ast_id) => {
-                let def = UnionLoc { container: module, ast_id: AstId::new(self.file_id, ast_id) }
+                let def = UnionLoc { container, 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) }
+                let def = EnumLoc { container, ast_id: AstId::new(self.file_id, ast_id) }
                     .intern(self.def_collector.db);
                 PerNs::types(def.into())
             }
             raw::DefKind::Const(ast_id) => {
                 let def = ConstLoc {
-                    container: ContainerId::ModuleId(module),
+                    container: container.into(),
                     ast_id: AstId::new(self.file_id, ast_id),
                 }
                 .intern(self.def_collector.db);
@@ -795,20 +796,20 @@ where
                 PerNs::values(def.into())
             }
             raw::DefKind::Static(ast_id) => {
-                let def = StaticLoc { container: module, ast_id: AstId::new(self.file_id, ast_id) }
+                let def = StaticLoc { container, ast_id: AstId::new(self.file_id, ast_id) }
                     .intern(self.def_collector.db);
 
                 PerNs::values(def.into())
             }
             raw::DefKind::Trait(ast_id) => {
-                let def = TraitLoc { container: module, ast_id: AstId::new(self.file_id, ast_id) }
+                let def = TraitLoc { container, ast_id: AstId::new(self.file_id, ast_id) }
                     .intern(self.def_collector.db);
 
                 PerNs::types(def.into())
             }
             raw::DefKind::TypeAlias(ast_id) => {
                 let def = TypeAliasLoc {
-                    container: ContainerId::ModuleId(module),
+                    container: container.into(),
                     ast_id: AstId::new(self.file_id, ast_id),
                 }
                 .intern(self.def_collector.db);
diff --git a/crates/ra_hir_def/src/resolver.rs b/crates/ra_hir_def/src/resolver.rs
index 250329271..af9d194f8 100644
--- a/crates/ra_hir_def/src/resolver.rs
+++ b/crates/ra_hir_def/src/resolver.rs
@@ -17,9 +17,9 @@ use crate::{
     nameres::{BuiltinShadowMode, CrateDefMap},
     path::{ModPath, PathKind},
     per_ns::PerNs,
-    AdtId, ConstId, ContainerId, DefWithBodyId, EnumId, EnumVariantId, FunctionId, GenericDefId,
-    HasModule, ImplId, LocalModuleId, Lookup, ModuleDefId, ModuleId, StaticId, StructId, TraitId,
-    TypeAliasId, TypeParamId, VariantId,
+    AdtId, AssocContainerId, ConstId, ContainerId, DefWithBodyId, EnumId, EnumVariantId,
+    FunctionId, GenericDefId, HasModule, ImplId, LocalModuleId, Lookup, ModuleDefId, ModuleId,
+    StaticId, StructId, TraitId, TypeAliasId, TypeParamId, VariantId,
 };
 
 #[derive(Debug, Clone, Default)]
@@ -583,14 +583,22 @@ impl HasResolver for DefWithBodyId {
 impl HasResolver for ContainerId {
     fn resolver(self, db: &impl DefDatabase) -> Resolver {
         match self {
-            ContainerId::TraitId(it) => it.resolver(db),
-            ContainerId::ImplId(it) => it.resolver(db),
             ContainerId::ModuleId(it) => it.resolver(db),
             ContainerId::DefWithBodyId(it) => it.resolver(db),
         }
     }
 }
 
+impl HasResolver for AssocContainerId {
+    fn resolver(self, db: &impl DefDatabase) -> Resolver {
+        match self {
+            AssocContainerId::ContainerId(it) => it.resolver(db),
+            AssocContainerId::TraitId(it) => it.resolver(db),
+            AssocContainerId::ImplId(it) => it.resolver(db),
+        }
+    }
+}
+
 impl HasResolver for GenericDefId {
     fn resolver(self, db: &impl DefDatabase) -> Resolver {
         match self {