Move attrs query to hir_def

crates/ra_hir/src/code_model/attrs.rs

@@ -1,91 +0,0 @@
-//! FIXME: write short doc here
-
-use crate::{
-    db::{AstDatabase, DefDatabase, HirDatabase},
-    Adt, Const, Enum, EnumVariant, FieldSource, Function, HasSource, MacroDef, Module, Static,
-    Struct, StructField, Trait, TypeAlias, Union,
-};
-use hir_def::attr::{Attr, Attrs};
-use hir_expand::hygiene::Hygiene;
-use ra_syntax::ast;
-
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
-pub enum AttrDef {
-    Module(Module),
-    StructField(StructField),
-    Adt(Adt),
-    Function(Function),
-    EnumVariant(EnumVariant),
-    Static(Static),
-    Const(Const),
-    Trait(Trait),
-    TypeAlias(TypeAlias),
-    MacroDef(MacroDef),
-}
-
-impl_froms!(
-    AttrDef: Module,
-    StructField,
-    Adt(Struct, Enum, Union),
-    EnumVariant,
-    Static,
-    Const,
-    Function,
-    Trait,
-    TypeAlias,
-    MacroDef
-);
-
-pub trait HasAttrs {
-    fn attrs(&self, db: &impl HirDatabase) -> Attrs;
-}
-
-pub(crate) fn attributes_query(db: &(impl DefDatabase + AstDatabase), def: AttrDef) -> Attrs {
-    match def {
-        AttrDef::Module(it) => {
-            let src = match it.declaration_source(db) {
-                Some(it) => it,
-                None => return Attrs::default(),
-            };
-            let hygiene = Hygiene::new(db, src.file_id);
-            Attr::from_attrs_owner(&src.value, &hygiene)
-        }
-        AttrDef::StructField(it) => match it.source(db).value {
-            FieldSource::Named(named) => {
-                let src = it.source(db);
-                let hygiene = Hygiene::new(db, src.file_id);
-                Attr::from_attrs_owner(&named, &hygiene)
-            }
-            FieldSource::Pos(..) => Attrs::default(),
-        },
-        AttrDef::Adt(it) => match it {
-            Adt::Struct(it) => attrs_from_ast(it, db),
-            Adt::Enum(it) => attrs_from_ast(it, db),
-            Adt::Union(it) => attrs_from_ast(it, db),
-        },
-        AttrDef::EnumVariant(it) => attrs_from_ast(it, db),
-        AttrDef::Static(it) => attrs_from_ast(it, db),
-        AttrDef::Const(it) => attrs_from_ast(it, db),
-        AttrDef::Function(it) => attrs_from_ast(it, db),
-        AttrDef::Trait(it) => attrs_from_ast(it, db),
-        AttrDef::TypeAlias(it) => attrs_from_ast(it, db),
-        AttrDef::MacroDef(it) => attrs_from_ast(it, db),
-    }
-}
-
-fn attrs_from_ast<T, D>(node: T, db: &D) -> Attrs
-where
-    T: HasSource,
-    T::Ast: ast::AttrsOwner,
-    D: DefDatabase + AstDatabase,
-{
-    let src = node.source(db);
-    let hygiene = Hygiene::new(db, src.file_id);
-    Attr::from_attrs_owner(&src.value, &hygiene)
-}
-
-impl<T: Into<AttrDef> + Copy> HasAttrs for T {
-    fn attrs(&self, db: &impl HirDatabase) -> Attrs {
-        db.attrs((*self).into())
-    }
-}

crates/ra_hir/src/code_model/src.rs

@@ -1,13 +1,14 @@
 //! FIXME: write short doc here
 
 use hir_def::{HasChildSource, HasSource as _, Lookup, VariantId};
+use hir_expand::either::Either;
 use ra_syntax::ast::{self, AstNode};
 
 use crate::{
     db::{AstDatabase, DefDatabase, HirDatabase},
     ids::AstItemDef,
-    Const, Either, Enum, EnumVariant, FieldSource, Function, HasBody, HirFileId, MacroDef, Module,
-    ModuleSource, Static, Struct, StructField, Trait, TypeAlias, Union,
+    Const, Enum, EnumVariant, FieldSource, Function, HasBody, MacroDef, Module, ModuleSource,
+    Static, Struct, StructField, Trait, TypeAlias, Union,
 };
 
 pub use hir_expand::Source;
@@ -23,11 +24,11 @@ impl Module {
     /// Returns a node which defines this module. That is, a file or a `mod foo {}` with items.
     pub fn definition_source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ModuleSource> {
         let def_map = db.crate_def_map(self.id.krate);
-        let decl_id = def_map[self.id.module_id].declaration;
-        let file_id = def_map[self.id.module_id].definition;
-        let value = ModuleSource::new(db, file_id, decl_id);
-        let file_id = file_id.map(HirFileId::from).unwrap_or_else(|| decl_id.unwrap().file_id());
-        Source { file_id, value }
+        let src = def_map[self.id.module_id].definition_source(db);
+        src.map(|it| match it {
+            Either::A(it) => ModuleSource::SourceFile(it),
+            Either::B(it) => ModuleSource::Module(it),
+        })
     }
 
     /// Returns a node which declares this module, either a `mod foo;` or a `mod foo {}`.
@@ -37,9 +38,7 @@ impl Module {
         db: &(impl DefDatabase + AstDatabase),
     ) -> Option<Source<ast::Module>> {
         let def_map = db.crate_def_map(self.id.krate);
-        let decl = def_map[self.id.module_id].declaration?;
-        let value = decl.to_node(db);
-        Some(Source { file_id: decl.file_id(), value })
+        def_map[self.id.module_id].declaration_source(db)
     }
 }