43 files changed, 226 insertions, 214 deletions

diff --git a/crates/ra_assists/src/assists/add_missing_impl_members.rs b/crates/ra_assists/src/assists/add_missing_impl_members.rs
index 91af161ee..cef669cb5 100644
--- a/crates/ra_assists/src/assists/add_missing_impl_members.rs
+++ b/crates/ra_assists/src/assists/add_missing_impl_members.rs
@@ -174,7 +174,7 @@ fn resolve_target_trait_def(
         .path()?;
 
     match analyzer.resolve_path(db, &ast_path) {
-        Some(hir::PathResolution::Def(hir::ModuleDef::Trait(def))) => Some(def.source(db).ast),
+        Some(hir::PathResolution::Def(hir::ModuleDef::Trait(def))) => Some(def.source(db).value),
         _ => None,
     }
 }
diff --git a/crates/ra_assists/src/assists/add_new.rs b/crates/ra_assists/src/assists/add_new.rs
index 2038afdc6..b5f8afb4e 100644
--- a/crates/ra_assists/src/assists/add_new.rs
+++ b/crates/ra_assists/src/assists/add_new.rs
@@ -141,7 +141,7 @@ fn find_struct_impl(
     })?;
 
     let struct_ty = {
-        let src = hir::Source { file_id: ctx.frange.file_id.into(), ast: strukt.clone() };
+        let src = hir::Source { file_id: ctx.frange.file_id.into(), value: strukt.clone() };
         hir::Struct::from_source(db, src).unwrap().ty(db)
     };
 
@@ -152,7 +152,7 @@ fn find_struct_impl(
             return false;
         }
 
-        let src = hir::Source { file_id: ctx.frange.file_id.into(), ast: impl_blk.clone() };
+        let src = hir::Source { file_id: ctx.frange.file_id.into(), value: impl_blk.clone() };
         let blk = hir::ImplBlock::from_source(db, src).unwrap();
 
         let same_ty = blk.target_ty(db) == struct_ty;
diff --git a/crates/ra_assists/src/assists/fill_match_arms.rs b/crates/ra_assists/src/assists/fill_match_arms.rs
index b851c2082..9354466d9 100644
--- a/crates/ra_assists/src/assists/fill_match_arms.rs
+++ b/crates/ra_assists/src/assists/fill_match_arms.rs
@@ -84,7 +84,7 @@ fn resolve_enum_def(
     let expr_ty = analyzer.type_of(db, &expr)?;
 
     analyzer.autoderef(db, expr_ty).find_map(|ty| match ty.as_adt() {
-        Some((Adt::Enum(e), _)) => Some(e.source(db).ast),
+        Some((Adt::Enum(e), _)) => Some(e.source(db).value),
         _ => None,
     })
 }
diff --git a/crates/ra_cli/src/analysis_stats.rs b/crates/ra_cli/src/analysis_stats.rs
index 3429a3c49..9cd21e4b6 100644
--- a/crates/ra_cli/src/analysis_stats.rs
+++ b/crates/ra_cli/src/analysis_stats.rs
@@ -98,7 +98,7 @@ pub fn run(
             let src = f.source(db);
             let original_file = src.file_id.original_file(db);
             let path = db.file_relative_path(original_file);
-            let syntax_range = src.ast.syntax().text_range();
+            let syntax_range = src.value.syntax().text_range();
             write!(msg, " ({:?} {})", path, syntax_range).unwrap();
         }
         bar.set_message(&msg);
@@ -135,7 +135,7 @@ pub fn run(
                         let path = db.file_relative_path(original_file);
                         let line_index = host.analysis().file_line_index(original_file).unwrap();
                         let text_range = src
-                            .ast
+                            .value
                             .either(|it| it.syntax().text_range(), |it| it.syntax().text_range());
                         let (start, end) = (
                             line_index.line_col(text_range.start()),
diff --git a/crates/ra_hir/src/code_model.rs b/crates/ra_hir/src/code_model.rs
index 731cc1fff..cb990f4e2 100644
--- a/crates/ra_hir/src/code_model.rs
+++ b/crates/ra_hir/src/code_model.rs
@@ -139,7 +139,7 @@ impl Module {
     ) -> Either<ast::UseTree, ast::ExternCrateItem> {
         let src = self.definition_source(db);
         let (_, source_map) = db.raw_items_with_source_map(src.file_id);
-        source_map.get(&src.ast, import)
+        source_map.get(&src.value, import)
     }
 
     /// Returns the crate this module is part of.
@@ -206,7 +206,7 @@ impl Module {
                 crate::ModuleDef::Function(f) => f.diagnostics(db, sink),
                 crate::ModuleDef::Module(m) => {
                     // Only add diagnostics from inline modules
-                    if let ModuleSource::Module(_) = m.definition_source(db).ast {
+                    if let ModuleSource::Module(_) = m.definition_source(db).value {
                         m.diagnostics(db, sink)
                     }
                 }
@@ -598,10 +598,10 @@ impl FnData {
         func: Function,
     ) -> Arc<FnData> {
         let src = func.source(db);
-        let name = src.ast.name().map(|n| n.as_name()).unwrap_or_else(Name::missing);
+        let name = src.value.name().map(|n| n.as_name()).unwrap_or_else(Name::missing);
         let mut params = Vec::new();
         let mut has_self_param = false;
-        if let Some(param_list) = src.ast.param_list() {
+        if let Some(param_list) = src.value.param_list() {
             if let Some(self_param) = param_list.self_param() {
                 let self_type = if let Some(type_ref) = self_param.ascribed_type() {
                     TypeRef::from_ast(type_ref)
@@ -625,7 +625,7 @@ impl FnData {
                 params.push(type_ref);
             }
         }
-        let ret_type = if let Some(type_ref) = src.ast.ret_type().and_then(|rt| rt.type_ref()) {
+        let ret_type = if let Some(type_ref) = src.value.ret_type().and_then(|rt| rt.type_ref()) {
             TypeRef::from_ast(type_ref)
         } else {
             TypeRef::unit()
@@ -801,7 +801,7 @@ impl ConstData {
         db: &(impl DefDatabase + AstDatabase),
         konst: Const,
     ) -> Arc<ConstData> {
-        let node = konst.source(db).ast;
+        let node = konst.source(db).value;
         const_data_for(&node)
     }
 
@@ -809,7 +809,7 @@ impl ConstData {
         db: &(impl DefDatabase + AstDatabase),
         konst: Static,
     ) -> Arc<ConstData> {
-        let node = konst.source(db).ast;
+        let node = konst.source(db).value;
         const_data_for(&node)
     }
 }
diff --git a/crates/ra_hir/src/code_model/attrs.rs b/crates/ra_hir/src/code_model/attrs.rs
index f7db36b66..9e304217c 100644
--- a/crates/ra_hir/src/code_model/attrs.rs
+++ b/crates/ra_hir/src/code_model/attrs.rs
@@ -49,9 +49,9 @@ pub(crate) fn attributes_query(
         AttrDef::Module(it) => {
             let src = it.declaration_source(db)?;
             let hygiene = Hygiene::new(db, src.file_id);
-            Attr::from_attrs_owner(&src.ast, &hygiene)
+            Attr::from_attrs_owner(&src.value, &hygiene)
         }
-        AttrDef::StructField(it) => match it.source(db).ast {
+        AttrDef::StructField(it) => match it.source(db).value {
             FieldSource::Named(named) => {
                 let src = it.source(db);
                 let hygiene = Hygiene::new(db, src.file_id);
@@ -82,7 +82,7 @@ where
 {
     let src = node.source(db);
     let hygiene = Hygiene::new(db, src.file_id);
-    Attr::from_attrs_owner(&src.ast, &hygiene)
+    Attr::from_attrs_owner(&src.value, &hygiene)
 }
 
 impl<T: Into<AttrDef> + Copy> Attrs for T {
diff --git a/crates/ra_hir/src/code_model/docs.rs b/crates/ra_hir/src/code_model/docs.rs
index 8533b4f5e..e40efef34 100644
--- a/crates/ra_hir/src/code_model/docs.rs
+++ b/crates/ra_hir/src/code_model/docs.rs
@@ -70,23 +70,23 @@ pub(crate) fn documentation_query(
     def: DocDef,
 ) -> Option<Documentation> {
     match def {
-        DocDef::Module(it) => docs_from_ast(&it.declaration_source(db)?.ast),
-        DocDef::StructField(it) => match it.source(db).ast {
+        DocDef::Module(it) => docs_from_ast(&it.declaration_source(db)?.value),
+        DocDef::StructField(it) => match it.source(db).value {
             FieldSource::Named(named) => docs_from_ast(&named),
             FieldSource::Pos(..) => None,
         },
         DocDef::Adt(it) => match it {
-            Adt::Struct(it) => docs_from_ast(&it.source(db).ast),
-            Adt::Enum(it) => docs_from_ast(&it.source(db).ast),
-            Adt::Union(it) => docs_from_ast(&it.source(db).ast),
+            Adt::Struct(it) => docs_from_ast(&it.source(db).value),
+            Adt::Enum(it) => docs_from_ast(&it.source(db).value),
+            Adt::Union(it) => docs_from_ast(&it.source(db).value),
         },
-        DocDef::EnumVariant(it) => docs_from_ast(&it.source(db).ast),
-        DocDef::Static(it) => docs_from_ast(&it.source(db).ast),
-        DocDef::Const(it) => docs_from_ast(&it.source(db).ast),
-        DocDef::Function(it) => docs_from_ast(&it.source(db).ast),
-        DocDef::Trait(it) => docs_from_ast(&it.source(db).ast),
-        DocDef::TypeAlias(it) => docs_from_ast(&it.source(db).ast),
-        DocDef::MacroDef(it) => docs_from_ast(&it.source(db).ast),
+        DocDef::EnumVariant(it) => docs_from_ast(&it.source(db).value),
+        DocDef::Static(it) => docs_from_ast(&it.source(db).value),
+        DocDef::Const(it) => docs_from_ast(&it.source(db).value),
+        DocDef::Function(it) => docs_from_ast(&it.source(db).value),
+        DocDef::Trait(it) => docs_from_ast(&it.source(db).value),
+        DocDef::TypeAlias(it) => docs_from_ast(&it.source(db).value),
+        DocDef::MacroDef(it) => docs_from_ast(&it.source(db).value),
     }
 }
 
diff --git a/crates/ra_hir/src/code_model/src.rs b/crates/ra_hir/src/code_model/src.rs
index 247ae3e55..556417b0f 100644
--- a/crates/ra_hir/src/code_model/src.rs
+++ b/crates/ra_hir/src/code_model/src.rs
@@ -25,9 +25,9 @@ impl Module {
         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 ast = ModuleSource::new(db, file_id, decl_id);
+        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, ast }
+        Source { file_id, value }
     }
 
     /// Returns a node which declares this module, either a `mod foo;` or a `mod foo {}`.
@@ -38,8 +38,8 @@ impl Module {
     ) -> Option<Source<ast::Module>> {
         let def_map = db.crate_def_map(self.id.krate);
         let decl = def_map[self.id.module_id].declaration?;
-        let ast = decl.to_node(db);
-        Some(Source { file_id: decl.file_id(), ast })
+        let value = decl.to_node(db);
+        Some(Source { file_id: decl.file_id(), value })
     }
 }
 
@@ -53,11 +53,11 @@ impl HasSource for StructField {
         let (file_id, struct_kind) = match self.parent {
             VariantDef::Struct(s) => {
                 ss = s.source(db);
-                (ss.file_id, ss.ast.kind())
+                (ss.file_id, ss.value.kind())
             }
             VariantDef::EnumVariant(e) => {
                 es = e.source(db);
-                (es.file_id, es.ast.kind())
+                (es.file_id, es.value.kind())
             }
         };
 
@@ -66,13 +66,13 @@ impl HasSource for StructField {
             ast::StructKind::Named(fl) => fl.fields().map(|it| FieldSource::Named(it)).collect(),
             ast::StructKind::Unit => Vec::new(),
         };
-        let ast = field_sources
+        let value = field_sources
             .into_iter()
             .zip(fields.iter())
             .find(|(_syntax, (id, _))| *id == self.id)
             .unwrap()
             .0;
-        Source { file_id, ast }
+        Source { file_id, value }
     }
 }
 impl HasSource for Struct {
@@ -98,8 +98,8 @@ impl HasSource for EnumVariant {
     fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::EnumVariant> {
         let enum_data = db.enum_data(self.parent.id);
         let src = self.parent.id.source(db);
-        let ast = src
-            .ast
+        let value = src
+            .value
             .variant_list()
             .into_iter()
             .flat_map(|it| it.variants())
@@ -107,7 +107,7 @@ impl HasSource for EnumVariant {
             .find(|(_syntax, (id, _))| *id == self.id)
             .unwrap()
             .0;
-        Source { file_id: src.file_id, ast }
+        Source { file_id: src.file_id, value }
     }
 }
 impl HasSource for Function {
@@ -143,7 +143,7 @@ impl HasSource for TypeAlias {
 impl HasSource for MacroDef {
     type Ast = ast::MacroCall;
     fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<ast::MacroCall> {
-        Source { file_id: self.id.ast_id.file_id(), ast: self.id.ast_id.to_node(db) }
+        Source { file_id: self.id.ast_id.file_id(), value: self.id.ast_id.to_node(db) }
     }
 }
 
diff --git a/crates/ra_hir/src/diagnostics.rs b/crates/ra_hir/src/diagnostics.rs
index 1751e7be3..7d1b64858 100644
--- a/crates/ra_hir/src/diagnostics.rs
+++ b/crates/ra_hir/src/diagnostics.rs
@@ -21,7 +21,7 @@ impl Diagnostic for NoSuchField {
     }
 
     fn source(&self) -> Source<SyntaxNodePtr> {
-        Source { file_id: self.file, ast: self.field.into() }
+        Source { file_id: self.file, value: self.field.into() }
     }
 
     fn as_any(&self) -> &(dyn Any + Send + 'static) {
@@ -41,7 +41,7 @@ impl Diagnostic for MissingFields {
         "fill structure fields".to_string()
     }
     fn source(&self) -> Source<SyntaxNodePtr> {
-        Source { file_id: self.file, ast: self.field_list.into() }
+        Source { file_id: self.file, value: self.field_list.into() }
     }
     fn as_any(&self) -> &(dyn Any + Send + 'static) {
         self
@@ -53,7 +53,7 @@ impl AstDiagnostic for MissingFields {
 
     fn ast(&self, db: &impl AstDatabase) -> Self::AST {
         let root = db.parse_or_expand(self.source().file_id).unwrap();
-        let node = self.source().ast.to_node(&root);
+        let node = self.source().value.to_node(&root);
         ast::RecordFieldList::cast(node).unwrap()
     }
 }
@@ -69,7 +69,7 @@ impl Diagnostic for MissingOkInTailExpr {
         "wrap return expression in Ok".to_string()
     }
     fn source(&self) -> Source<SyntaxNodePtr> {
-        Source { file_id: self.file, ast: self.expr.into() }
+        Source { file_id: self.file, value: self.expr.into() }
     }
     fn as_any(&self) -> &(dyn Any + Send + 'static) {
         self
@@ -81,7 +81,7 @@ impl AstDiagnostic for MissingOkInTailExpr {
 
     fn ast(&self, db: &impl AstDatabase) -> Self::AST {
         let root = db.parse_or_expand(self.file).unwrap();
-        let node = self.source().ast.to_node(&root);
+        let node = self.source().value.to_node(&root);
         ast::Expr::cast(node).unwrap()
     }
 }
diff --git a/crates/ra_hir/src/expr.rs b/crates/ra_hir/src/expr.rs
index e3733779e..8bfdda45e 100644
--- a/crates/ra_hir/src/expr.rs
+++ b/crates/ra_hir/src/expr.rs
@@ -116,7 +116,7 @@ impl<'a, 'b> ExprValidator<'a, 'b> {
         let source_map = self.func.body_source_map(db);
 
         if let Some(source_ptr) = source_map.expr_syntax(id) {
-            if let Some(expr) = source_ptr.ast.a() {
+            if let Some(expr) = source_ptr.value.a() {
                 let root = source_ptr.file_syntax(db);
                 if let ast::Expr::RecordLit(record_lit) = expr.to_node(&root) {
                     if let Some(field_list) = record_lit.record_field_list() {
@@ -161,7 +161,7 @@ impl<'a, 'b> ExprValidator<'a, 'b> {
             let source_map = self.func.body_source_map(db);
 
             if let Some(source_ptr) = source_map.expr_syntax(id) {
-                if let Some(expr) = source_ptr.ast.a() {
+                if let Some(expr) = source_ptr.value.a() {
                     self.sink.push(MissingOkInTailExpr { file: source_ptr.file_id, expr });
                 }
             }
diff --git a/crates/ra_hir/src/from_source.rs b/crates/ra_hir/src/from_source.rs
index 1c26756c9..f4dca25cb 100644
--- a/crates/ra_hir/src/from_source.rs
+++ b/crates/ra_hir/src/from_source.rs
@@ -87,7 +87,7 @@ impl FromSource for MacroDef {
         let module = Module::from_definition(db, Source::new(src.file_id, module_src))?;
         let krate = module.krate().crate_id();
 
-        let ast_id = AstId::new(src.file_id, db.ast_id_map(src.file_id).ast_id(&src.ast));
+        let ast_id = AstId::new(src.file_id, db.ast_id_map(src.file_id).ast_id(&src.value));
 
         let id: MacroDefId = MacroDefId { krate, ast_id, kind };
         Some(MacroDef { id })
@@ -105,8 +105,8 @@ impl FromSource for ImplBlock {
 impl FromSource for EnumVariant {
     type Ast = ast::EnumVariant;
     fn from_source(db: &(impl DefDatabase + AstDatabase), src: Source<Self::Ast>) -> Option<Self> {
-        let parent_enum = src.ast.parent_enum();
-        let src_enum = Source { file_id: src.file_id, ast: parent_enum };
+        let parent_enum = src.value.parent_enum();
+        let src_enum = Source { file_id: src.file_id, value: parent_enum };
         let variants = Enum::from_source(db, src_enum)?.variants(db);
         variants.into_iter().find(|v| v.source(db) == src)
     }
@@ -115,16 +115,16 @@ impl FromSource for EnumVariant {
 impl FromSource for StructField {
     type Ast = FieldSource;
     fn from_source(db: &(impl DefDatabase + AstDatabase), src: Source<Self::Ast>) -> Option<Self> {
-        let variant_def: VariantDef = match src.ast {
+        let variant_def: VariantDef = match src.value {
             FieldSource::Named(ref field) => {
-                let ast = field.syntax().ancestors().find_map(ast::StructDef::cast)?;
-                let src = Source { file_id: src.file_id, ast };
+                let value = field.syntax().ancestors().find_map(ast::StructDef::cast)?;
+                let src = Source { file_id: src.file_id, value };
                 let def = Struct::from_source(db, src)?;
                 VariantDef::from(def)
             }
             FieldSource::Pos(ref field) => {
-                let ast = field.syntax().ancestors().find_map(ast::EnumVariant::cast)?;
-                let src = Source { file_id: src.file_id, ast };
+                let value = field.syntax().ancestors().find_map(ast::EnumVariant::cast)?;
+                let src = Source { file_id: src.file_id, value };
                 let def = EnumVariant::from_source(db, src)?;
                 VariantDef::from(def)
             }
@@ -142,12 +142,12 @@ impl FromSource for StructField {
 impl Local {
     pub fn from_source(db: &impl HirDatabase, src: Source<ast::BindPat>) -> Option<Self> {
         let file_id = src.file_id;
-        let parent: DefWithBody = src.ast.syntax().ancestors().find_map(|it| {
+        let parent: DefWithBody = src.value.syntax().ancestors().find_map(|it| {
             let res = match_ast! {
                 match it {
-                    ast::ConstDef(ast) => { Const::from_source(db, Source { ast, file_id})?.into() },
-                    ast::StaticDef(ast) => { Static::from_source(db, Source { ast, file_id})?.into() },
-                    ast::FnDef(ast) => { Function::from_source(db, Source { ast, file_id})?.into() },
+                    ast::ConstDef(value) => { Const::from_source(db, Source { value, file_id})?.into() },
+                    ast::StaticDef(value) => { Static::from_source(db, Source { value, file_id})?.into() },
+                    ast::FnDef(value) => { Function::from_source(db, Source { value, file_id})?.into() },
                     _ => return None,
                 }
             };
@@ -162,33 +162,33 @@ impl Local {
 
 impl Module {
     pub fn from_declaration(db: &impl DefDatabase, src: Source<ast::Module>) -> Option<Self> {
-        let parent_declaration = src.ast.syntax().ancestors().skip(1).find_map(ast::Module::cast);
+        let parent_declaration = src.value.syntax().ancestors().skip(1).find_map(ast::Module::cast);
 
         let parent_module = match parent_declaration {
             Some(parent_declaration) => {
-                let src_parent = Source { file_id: src.file_id, ast: parent_declaration };
+                let src_parent = Source { file_id: src.file_id, value: parent_declaration };
                 Module::from_declaration(db, src_parent)
             }
             _ => {
                 let src_parent = Source {
                     file_id: src.file_id,
-                    ast: ModuleSource::new(db, Some(src.file_id.original_file(db)), None),
+                    value: ModuleSource::new(db, Some(src.file_id.original_file(db)), None),
                 };
                 Module::from_definition(db, src_parent)
             }
         }?;
 
-        let child_name = src.ast.name()?;
+        let child_name = src.value.name()?;
         parent_module.child(db, &child_name.as_name())
     }
 
     pub fn from_definition(db: &impl DefDatabase, src: Source<ModuleSource>) -> Option<Self> {
-        match src.ast {
+        match src.value {
             ModuleSource::Module(ref module) => {
                 assert!(!module.has_semi());
                 return Module::from_declaration(
                     db,
-                    Source { file_id: src.file_id, ast: module.clone() },
+                    Source { file_id: src.file_id, value: module.clone() },
                 );
             }
             ModuleSource::SourceFile(_) => (),
@@ -214,5 +214,5 @@ where
     let module_src = ModuleSource::from_child_node(db, src.as_ref().map(|it| it.syntax()));
     let module = Module::from_definition(db, Source::new(src.file_id, module_src))?;
     let ctx = LocationCtx::new(db, module.id, src.file_id);
-    Some(DEF::from_ast(ctx, &src.ast))
+    Some(DEF::from_ast(ctx, &src.value))
 }
diff --git a/crates/ra_hir/src/generics.rs b/crates/ra_hir/src/generics.rs
index c35482ae8..8925ba3a9 100644
--- a/crates/ra_hir/src/generics.rs
+++ b/crates/ra_hir/src/generics.rs
@@ -91,10 +91,10 @@ impl GenericParams {
         let start = generics.parent_params.as_ref().map(|p| p.params.len()).unwrap_or(0) as u32;
         // FIXME: add `: Sized` bound for everything except for `Self` in traits
         match def {
-            GenericDef::Function(it) => generics.fill(&it.source(db).ast, start),
-            GenericDef::Adt(Adt::Struct(it)) => generics.fill(&it.source(db).ast, start),
-            GenericDef::Adt(Adt::Union(it)) => generics.fill(&it.source(db).ast, start),
-            GenericDef::Adt(Adt::Enum(it)) => generics.fill(&it.source(db).ast, start),
+            GenericDef::Function(it) => generics.fill(&it.source(db).value, start),
+            GenericDef::Adt(Adt::Struct(it)) => generics.fill(&it.source(db).value, start),
+            GenericDef::Adt(Adt::Union(it)) => generics.fill(&it.source(db).value, start),
+            GenericDef::Adt(Adt::Enum(it)) => generics.fill(&it.source(db).value, start),
             GenericDef::Trait(it) => {
                 // traits get the Self type as an implicit first type parameter
                 generics.params.push(GenericParam {
@@ -102,17 +102,17 @@ impl GenericParams {
                     name: name::SELF_TYPE,
                     default: None,
                 });
-                generics.fill(&it.source(db).ast, start + 1);
+                generics.fill(&it.source(db).value, start + 1);
                 // add super traits as bounds on Self
                 // i.e., trait Foo: Bar is equivalent to trait Foo where Self: Bar
                 let self_param = TypeRef::Path(name::SELF_TYPE.into());
-                generics.fill_bounds(&it.source(db).ast, self_param);
+                generics.fill_bounds(&it.source(db).value, self_param);
             }
-            GenericDef::TypeAlias(it) => generics.fill(&it.source(db).ast, start),
+            GenericDef::TypeAlias(it) => generics.fill(&it.source(db).value, start),
             // Note that we don't add `Self` here: in `impl`s, `Self` is not a
             // type-parameter, but rather is a type-alias for impl's target
             // type, so this is handled by the resolver.
-            GenericDef::ImplBlock(it) => generics.fill(&it.source(db).ast, start),
+            GenericDef::ImplBlock(it) => generics.fill(&it.source(db).value, start),
             GenericDef::EnumVariant(_) | GenericDef::Const(_) => {}
         }
 
diff --git a/crates/ra_hir/src/lang_item.rs b/crates/ra_hir/src/lang_item.rs
index fa2ef8a17..89fd85f59 100644
--- a/crates/ra_hir/src/lang_item.rs
+++ b/crates/ra_hir/src/lang_item.rs
@@ -97,7 +97,7 @@ impl LangItems {
         // Look for impl targets
         for impl_block in module.impl_blocks(db) {
             let src = impl_block.source(db);
-            if let Some(lang_item_name) = lang_item_name(&src.ast) {
+            if let Some(lang_item_name) = lang_item_name(&src.value) {
                 self.items
                     .entry(lang_item_name)
                     .or_insert_with(|| LangItemTarget::ImplBlock(impl_block));
@@ -144,7 +144,7 @@ impl LangItems {
         T: Copy + HasSource<Ast = N>,
         N: AttrsOwner,
     {
-        let node = item.source(db).ast;
+        let node = item.source(db).value;
         if let Some(lang_item_name) = lang_item_name(&node) {
             self.items.entry(lang_item_name).or_insert_with(|| constructor(item));
         }
diff --git a/crates/ra_hir/src/source_binder.rs b/crates/ra_hir/src/source_binder.rs
index 5d3196c2a..471b0b089 100644
--- a/crates/ra_hir/src/source_binder.rs
+++ b/crates/ra_hir/src/source_binder.rs
@@ -31,7 +31,7 @@ use crate::{
 
 fn try_get_resolver_for_node(db: &impl HirDatabase, node: Source<&SyntaxNode>) -> Option<Resolver> {
     match_ast! {
-        match (node.ast) {
+        match (node.value) {
             ast::Module(it) => {
                 let src = node.with_ast(it);
                 Some(crate::Module::from_declaration(db, src)?.resolver(db))
@@ -48,7 +48,7 @@ fn try_get_resolver_for_node(db: &impl HirDatabase, node: Source<&SyntaxNode>) -
                 let src = node.with_ast(it);
                 Some(Enum::from_source(db, src)?.resolver(db))
             },
-            _ => match node.ast.kind() {
+            _ => match node.value.kind() {
                 FN_DEF | CONST_DEF | STATIC_DEF => {
                     Some(def_with_body_from_child_node(db, node)?.resolver(db))
                 }
@@ -67,7 +67,7 @@ fn def_with_body_from_child_node(
     let module = Module::from_definition(db, Source::new(child.file_id, module_source))?;
     let ctx = LocationCtx::new(db, module.id, child.file_id);
 
-    child.ast.ancestors().find_map(|node| {
+    child.value.ancestors().find_map(|node| {
         match_ast! {
             match node {
                 ast::FnDef(def)  => { Some(Function {id: ctx.to_def(&def) }.into()) },
@@ -171,7 +171,7 @@ impl SourceAnalyzer {
         } else {
             SourceAnalyzer {
                 resolver: node
-                    .ast
+                    .value
                     .ancestors()
                     .find_map(|it| try_get_resolver_for_node(db, node.with_ast(&it)))
                     .unwrap_or_default(),
@@ -185,12 +185,12 @@ impl SourceAnalyzer {
     }
 
     fn expr_id(&self, expr: &ast::Expr) -> Option<ExprId> {
-        let src = Source { file_id: self.file_id, ast: expr };
+        let src = Source { file_id: self.file_id, value: expr };
         self.body_source_map.as_ref()?.node_expr(src)
     }
 
     fn pat_id(&self, pat: &ast::Pat) -> Option<PatId> {
-        let src = Source { file_id: self.file_id, ast: pat };
+        let src = Source { file_id: self.file_id, value: pat };
         self.body_source_map.as_ref()?.node_pat(src)
     }
 
@@ -302,7 +302,7 @@ impl SourceAnalyzer {
         let entry = scopes.resolve_name_in_scope(scope, &name)?;
         Some(ScopeEntryWithSyntax {
             name: entry.name().clone(),
-            ptr: source_map.pat_syntax(entry.pat())?.ast,
+            ptr: source_map.pat_syntax(entry.pat())?.value,
         })
     }
 
@@ -428,7 +428,7 @@ fn scope_for(
     source_map: &BodySourceMap,
     node: Source<&SyntaxNode>,
 ) -> Option<ScopeId> {
-    node.ast
+    node.value
         .ancestors()
         .filter_map(ast::Expr::cast)
         .filter_map(|it| source_map.node_expr(Source::new(node.file_id, &it)))
@@ -450,18 +450,18 @@ fn scope_for_offset(
                 return None;
             }
             let syntax_node_ptr =
-                source.ast.either(|it| it.syntax_node_ptr(), |it| it.syntax_node_ptr());
+                source.value.either(|it| it.syntax_node_ptr(), |it| it.syntax_node_ptr());
             Some((syntax_node_ptr, scope))
         })
         // find containing scope
         .min_by_key(|(ptr, _scope)| {
             (
-                !(ptr.range().start() <= offset.ast && offset.ast <= ptr.range().end()),
+                !(ptr.range().start() <= offset.value && offset.value <= ptr.range().end()),
                 ptr.range().len(),
             )
         })
         .map(|(ptr, scope)| {
-            adjust(scopes, source_map, ptr, offset.file_id, offset.ast).unwrap_or(*scope)
+            adjust(scopes, source_map, ptr, offset.file_id, offset.value).unwrap_or(*scope)
         })
 }
 
@@ -485,7 +485,7 @@ fn adjust(
                 return None;
             }
             let syntax_node_ptr =
-                source.ast.either(|it| it.syntax_node_ptr(), |it| it.syntax_node_ptr());
+                source.value.either(|it| it.syntax_node_ptr(), |it| it.syntax_node_ptr());
             Some((syntax_node_ptr, scope))
         })
         .map(|(ptr, scope)| (ptr.range(), scope))
diff --git a/crates/ra_hir/src/traits.rs b/crates/ra_hir/src/traits.rs
index 1a45dacba..858972c6f 100644
--- a/crates/ra_hir/src/traits.rs
+++ b/crates/ra_hir/src/traits.rs
@@ -26,11 +26,11 @@ impl TraitData {
         tr: Trait,
     ) -> Arc<TraitData> {
         let src = tr.source(db);
-        let name = src.ast.name().map(|n| n.as_name());
+        let name = src.value.name().map(|n| n.as_name());
         let module = tr.module(db);
         let ctx = LocationCtx::new(db, module.id, src.file_id);
-        let auto = src.ast.is_auto();
-        let items = if let Some(item_list) = src.ast.item_list() {
+        let auto = src.value.is_auto();
+        let items = if let Some(item_list) = src.value.item_list() {
             item_list
                 .impl_items()
                 .map(|item_node| match item_node {
diff --git a/crates/ra_hir/src/ty/tests.rs b/crates/ra_hir/src/ty/tests.rs
index ca1693679..c1024d03c 100644
--- a/crates/ra_hir/src/ty/tests.rs
+++ b/crates/ra_hir/src/ty/tests.rs
@@ -4694,14 +4694,16 @@ fn infer(content: &str) -> String {
         }
 
         // sort ranges for consistency
-        types.sort_by_key(|(src_ptr, _)| (src_ptr.ast.range().start(), src_ptr.ast.range().end()));
+        types.sort_by_key(|(src_ptr, _)| {
+            (src_ptr.value.range().start(), src_ptr.value.range().end())
+        });
         for (src_ptr, ty) in &types {
-            let node = src_ptr.ast.to_node(&src_ptr.file_syntax(&db));
+            let node = src_ptr.value.to_node(&src_ptr.file_syntax(&db));
 
             let (range, text) = if let Some(self_param) = ast::SelfParam::cast(node.clone()) {
                 (self_param.self_kw_token().text_range(), "self".to_string())
             } else {
-                (src_ptr.ast.range(), node.text().to_string().replace("\n", " "))
+                (src_ptr.value.range(), node.text().to_string().replace("\n", " "))
             };
             let macro_prefix = if src_ptr.file_id != file_id.into() { "!" } else { "" };
             write!(
diff --git a/crates/ra_hir/src/type_alias.rs b/crates/ra_hir/src/type_alias.rs
index 078e6295e..392f244cf 100644
--- a/crates/ra_hir/src/type_alias.rs
+++ b/crates/ra_hir/src/type_alias.rs
@@ -23,7 +23,7 @@ impl TypeAliasData {
         db: &(impl DefDatabase + AstDatabase),
         typ: TypeAlias,
     ) -> Arc<TypeAliasData> {
-        let node = typ.source(db).ast;
+        let node = typ.source(db).value;
         let name = node.name().map_or_else(Name::missing, |n| n.as_name());
         let type_ref = node.type_ref().map(TypeRef::from_ast);
         Arc::new(TypeAliasData { name, type_ref })
diff --git a/crates/ra_hir_def/src/adt.rs b/crates/ra_hir_def/src/adt.rs
index a29c4d41e..d04f54e15 100644
--- a/crates/ra_hir_def/src/adt.rs
+++ b/crates/ra_hir_def/src/adt.rs
@@ -54,8 +54,8 @@ impl StructData {
         id: StructOrUnionId,
     ) -> Arc<StructData> {
         let src = id.source(db);
-        let name = src.ast.name().map(|n| n.as_name());
-        let variant_data = VariantData::new(src.ast.kind());
+        let name = src.value.name().map(|n| n.as_name());
+        let variant_data = VariantData::new(src.value.kind());
         let variant_data = Arc::new(variant_data);
         Arc::new(StructData { name, variant_data })
     }
@@ -64,9 +64,9 @@ impl StructData {
 impl EnumData {
     pub(crate) fn enum_data_query(db: &impl DefDatabase2, e: EnumId) -> Arc<EnumData> {
         let src = e.source(db);
-        let name = src.ast.name().map(|n| n.as_name());
+        let name = src.value.name().map(|n| n.as_name());
         let variants = src
-            .ast
+            .value
             .variant_list()
             .into_iter()
             .flat_map(|it| it.variants())
diff --git a/crates/ra_hir_def/src/body.rs b/crates/ra_hir_def/src/body.rs
index 85dc4feb0..3804b65c7 100644
--- a/crates/ra_hir_def/src/body.rs
+++ b/crates/ra_hir_def/src/body.rs
@@ -73,8 +73,8 @@ impl Expander {
         std::mem::forget(mark);
     }
 
-    fn to_source<T>(&self, ast: T) -> Source<T> {
-        Source { file_id: self.current_file_id, ast }
+    fn to_source<T>(&self, value: T) -> Source<T> {
+        Source { file_id: self.current_file_id, value }
     }
 
     fn parse_path(&mut self, path: ast::Path) -> Option<Path> {
@@ -150,16 +150,16 @@ impl Body {
         let (file_id, module, body) = match def {
             DefWithBodyId::FunctionId(f) => {
                 let src = f.source(db);
-                params = src.ast.param_list();
-                (src.file_id, f.module(db), src.ast.body().map(ast::Expr::from))
+                params = src.value.param_list();
+                (src.file_id, f.module(db), src.value.body().map(ast::Expr::from))
             }
             DefWithBodyId::ConstId(c) => {
                 let src = c.source(db);
-                (src.file_id, c.module(db), src.ast.body())
+                (src.file_id, c.module(db), src.value.body())
             }
             DefWithBodyId::StaticId(s) => {
                 let src = s.source(db);
-                (src.file_id, s.module(db), src.ast.body())
+                (src.file_id, s.module(db), src.value.body())
             }
         };
         let expander = Expander::new(db, file_id, module);
diff --git a/crates/ra_hir_def/src/body/scope.rs b/crates/ra_hir_def/src/body/scope.rs
index 10cb87d37..aeb71ff22 100644
--- a/crates/ra_hir_def/src/body/scope.rs
+++ b/crates/ra_hir_def/src/body/scope.rs
@@ -210,8 +210,9 @@ mod tests {
         let scopes = db.expr_scopes(function.into());
         let (_body, source_map) = db.body_with_source_map(function.into());
 
-        let expr_id =
-            source_map.node_expr(Source { file_id: file_id.into(), ast: &marker.into() }).unwrap();
+        let expr_id = source_map
+            .node_expr(Source { file_id: file_id.into(), value: &marker.into() })
+            .unwrap();
         let scope = scopes.scope_for(expr_id);
 
         let actual = scopes
@@ -317,14 +318,14 @@ mod tests {
         let expr_scope = {
             let expr_ast = name_ref.syntax().ancestors().find_map(ast::Expr::cast).unwrap();
             let expr_id =
-                source_map.node_expr(Source { file_id: file_id.into(), ast: &expr_ast }).unwrap();
+                source_map.node_expr(Source { file_id: file_id.into(), value: &expr_ast }).unwrap();
             scopes.scope_for(expr_id).unwrap()
         };
 
         let resolved = scopes.resolve_name_in_scope(expr_scope, &name_ref.as_name()).unwrap();
         let pat_src = source_map.pat_syntax(resolved.pat()).unwrap();
 
-        let local_name = pat_src.ast.either(|it| it.syntax_node_ptr(), |it| it.syntax_node_ptr());
+        let local_name = pat_src.value.either(|it| it.syntax_node_ptr(), |it| it.syntax_node_ptr());
         assert_eq!(local_name.range(), expected_name.syntax().text_range());
     }
 
diff --git a/crates/ra_hir_def/src/diagnostics.rs b/crates/ra_hir_def/src/diagnostics.rs
index 9843009a5..eda9b2269 100644
--- a/crates/ra_hir_def/src/diagnostics.rs
+++ b/crates/ra_hir_def/src/diagnostics.rs
@@ -20,7 +20,7 @@ impl Diagnostic for UnresolvedModule {
         "unresolved module".to_string()
     }
     fn source(&self) -> Source<SyntaxNodePtr> {
-        Source { file_id: self.file, ast: self.decl.into() }
+        Source { file_id: self.file, value: self.decl.into() }
     }
     fn as_any(&self) -> &(dyn Any + Send + 'static) {
         self
diff --git a/crates/ra_hir_def/src/imp.rs b/crates/ra_hir_def/src/imp.rs
index 717991c40..4323dfcb6 100644
--- a/crates/ra_hir_def/src/imp.rs
+++ b/crates/ra_hir_def/src/imp.rs
@@ -25,11 +25,11 @@ impl ImplData {
         let src = id.source(db);
         let items = db.ast_id_map(src.file_id);
 
-        let target_trait = src.ast.target_trait().map(TypeRef::from_ast);
-        let target_type = TypeRef::from_ast_opt(src.ast.target_type());
-        let negative = src.ast.is_negative();
+        let target_trait = src.value.target_trait().map(TypeRef::from_ast);
+        let target_type = TypeRef::from_ast_opt(src.value.target_type());
+        let negative = src.value.is_negative();
 
-        let items = if let Some(item_list) = src.ast.item_list() {
+        let items = if let Some(item_list) = src.value.item_list() {
             let ctx = LocationCtx::new(db, id.module(db), src.file_id);
             item_list
                 .impl_items()
diff --git a/crates/ra_hir_def/src/lib.rs b/crates/ra_hir_def/src/lib.rs
index a240a10b8..50caf4f83 100644
--- a/crates/ra_hir_def/src/lib.rs
+++ b/crates/ra_hir_def/src/lib.rs
@@ -80,7 +80,7 @@ impl ModuleSource {
 
     pub fn from_child_node(db: &impl db::DefDatabase2, child: Source<&SyntaxNode>) -> ModuleSource {
         if let Some(m) =
-            child.ast.ancestors().filter_map(ast::Module::cast).find(|it| !it.has_semi())
+            child.value.ancestors().filter_map(ast::Module::cast).find(|it| !it.has_semi())
         {
             ModuleSource::Module(m)
         } else {
@@ -184,8 +184,8 @@ pub trait AstItemDef<N: AstNode>: salsa::InternKey + Clone {
     }
     fn source(self, db: &(impl AstDatabase + InternDatabase)) -> Source<N> {
         let loc = self.lookup_intern(db);
-        let ast = loc.ast_id.to_node(db);
-        Source { file_id: loc.ast_id.file_id(), ast }
+        let value = loc.ast_id.to_node(db);
+        Source { file_id: loc.ast_id.file_id(), value }
     }
     fn module(self, db: &impl InternDatabase) -> ModuleId {
         let loc = self.lookup_intern(db);
diff --git a/crates/ra_hir_def/src/nameres/raw.rs b/crates/ra_hir_def/src/nameres/raw.rs
index a0a2c7273..7c68fd638 100644
--- a/crates/ra_hir_def/src/nameres/raw.rs
+++ b/crates/ra_hir_def/src/nameres/raw.rs
@@ -327,7 +327,7 @@ impl RawItemsCollector {
 
         let mut buf = Vec::new();
         Path::expand_use_item(
-            Source { ast: use_item, file_id: self.file_id },
+            Source { value: use_item, file_id: self.file_id },
             &self.hygiene,
             |path, use_tree, is_glob, alias| {
                 let import_data = ImportData {
diff --git a/crates/ra_hir_def/src/path.rs b/crates/ra_hir_def/src/path.rs
index 04039376f..626ebffdc 100644
--- a/crates/ra_hir_def/src/path.rs
+++ b/crates/ra_hir_def/src/path.rs
@@ -71,7 +71,7 @@ impl Path {
         hygiene: &Hygiene,
         mut cb: impl FnMut(Path, &ast::UseTree, bool, Option<Name>),
     ) {
-        if let Some(tree) = item_src.ast.use_tree() {
+        if let Some(tree) = item_src.value.use_tree() {
             expand_use_tree(None, tree, hygiene, &mut cb);
         }
     }
diff --git a/crates/ra_hir_expand/src/diagnostics.rs b/crates/ra_hir_expand/src/diagnostics.rs
index 201884b95..3d37e9335 100644
--- a/crates/ra_hir_expand/src/diagnostics.rs
+++ b/crates/ra_hir_expand/src/diagnostics.rs
@@ -24,7 +24,7 @@ pub trait Diagnostic: Any + Send + Sync + fmt::Debug + 'static {
     fn message(&self) -> String;
     fn source(&self) -> Source<SyntaxNodePtr>;
     fn highlight_range(&self) -> TextRange {
-        self.source().ast.range()
+        self.source().value.range()
     }
     fn as_any(&self) -> &(dyn Any + Send + 'static);
 }
@@ -37,7 +37,7 @@ pub trait AstDiagnostic {
 impl dyn Diagnostic {
     pub fn syntax_node(&self, db: &impl AstDatabase) -> SyntaxNode {
         let node = db.parse_or_expand(self.source().file_id).unwrap();
-        self.source().ast.to_node(&node)
+        self.source().value.to_node(&node)
     }
 
     pub fn downcast_ref<D: Diagnostic>(&self) -> Option<&D> {
diff --git a/crates/ra_hir_expand/src/lib.rs b/crates/ra_hir_expand/src/lib.rs
index cfe7e6d15..6ca4bc7a3 100644
--- a/crates/ra_hir_expand/src/lib.rs
+++ b/crates/ra_hir_expand/src/lib.rs
@@ -166,19 +166,19 @@ impl ExpansionInfo {
     pub fn map_token_down(&self, token: Source<&SyntaxToken>) -> Option<Source<SyntaxToken>> {
         assert_eq!(token.file_id, self.arg.file_id);
         let range =
-            token.ast.text_range().checked_sub(self.arg.ast.syntax().text_range().start())?;
+            token.value.text_range().checked_sub(self.arg.value.syntax().text_range().start())?;
         let token_id = self.macro_arg.1.token_by_range(range)?;
         let token_id = self.macro_def.0.map_id_down(token_id);
 
         let range = self.exp_map.range_by_token(token_id)?;
 
-        let token = algo::find_covering_element(&self.expanded.ast, range).into_token()?;
+        let token = algo::find_covering_element(&self.expanded.value, range).into_token()?;
 
         Some(self.expanded.with_ast(token))
     }
 
     pub fn map_token_up(&self, token: Source<&SyntaxToken>) -> Option<Source<SyntaxToken>> {
-        let token_id = self.exp_map.token_by_range(token.ast.text_range())?;
+        let token_id = self.exp_map.token_by_range(token.value.text_range())?;
 
         let (token_id, origin) = self.macro_def.0.map_id_up(token_id);
         let (token_map, tt) = match origin {
@@ -188,8 +188,8 @@ impl ExpansionInfo {
 
         let range = token_map.range_by_token(token_id)?;
         let token = algo::find_covering_element(
-            tt.ast.syntax(),
-            range + tt.ast.syntax().text_range().start(),
+            tt.value.syntax(),
+            range + tt.value.syntax().text_range().start(),
         )
         .into_token()?;
         Some(tt.with_ast(token))
@@ -240,30 +240,34 @@ impl<N: AstNode> AstId<N> {
     }
 }
 
-/// FIXME: https://github.com/matklad/with ?
+/// `Source<T>` stores a value of `T` inside a particular file/syntax tree.
+///
+/// Typical usages are:
+///
+/// * `Source<SyntaxNode>` -- syntax node in a file
+/// * `Source<ast::FnDef>` -- ast node in a file
+/// * `Source<TextUnit>` -- offset in a file
 #[derive(Debug, PartialEq, Eq, Clone, Copy, Hash)]
 pub struct Source<T> {
     pub file_id: HirFileId,
-    // FIXME: this stores all kind of things, not only `ast`.
-    // There should be a better name...
-    pub ast: T,
+    pub value: T,
 }
 
 impl<T> Source<T> {
-    pub fn new(file_id: HirFileId, ast: T) -> Source<T> {
-        Source { file_id, ast }
+    pub fn new(file_id: HirFileId, value: T) -> Source<T> {
+        Source { file_id, value }
     }
 
     // Similarly, naming here is stupid...
-    pub fn with_ast<U>(&self, ast: U) -> Source<U> {
-        Source::new(self.file_id, ast)
+    pub fn with_ast<U>(&self, value: U) -> Source<U> {
+        Source::new(self.file_id, value)
     }
 
     pub fn map<F: FnOnce(T) -> U, U>(self, f: F) -> Source<U> {
-        Source::new(self.file_id, f(self.ast))
+        Source::new(self.file_id, f(self.value))
     }
     pub fn as_ref(&self) -> Source<&T> {
-        self.with_ast(&self.ast)
+        self.with_ast(&self.value)
     }
     pub fn file_syntax(&self, db: &impl db::AstDatabase) -> SyntaxNode {
         db.parse_or_expand(self.file_id).expect("source created from invalid file")
diff --git a/crates/ra_ide_api/src/completion/completion_context.rs b/crates/ra_ide_api/src/completion/completion_context.rs
index 0906a4e1b..b8345c91d 100644
--- a/crates/ra_ide_api/src/completion/completion_context.rs
+++ b/crates/ra_ide_api/src/completion/completion_context.rs
@@ -54,7 +54,7 @@ impl<'a> CompletionContext<'a> {
         let src = hir::ModuleSource::from_position(db, position);
         let module = hir::Module::from_definition(
             db,
-            hir::Source { file_id: position.file_id.into(), ast: src },
+            hir::Source { file_id: position.file_id.into(), value: src },
         );
         let token =
             original_parse.tree().syntax().token_at_offset(position.offset).left_biased()?;
diff --git a/crates/ra_ide_api/src/completion/presentation.rs b/crates/ra_ide_api/src/completion/presentation.rs
index 501b7da4e..b20329459 100644
--- a/crates/ra_ide_api/src/completion/presentation.rs
+++ b/crates/ra_ide_api/src/completion/presentation.rs
@@ -169,7 +169,7 @@ impl Completions {
             None => return,
         };
 
-        let ast_node = macro_.source(ctx.db).ast;
+        let ast_node = macro_.source(ctx.db).value;
         let detail = macro_label(&ast_node);
 
         let docs = macro_.docs(ctx.db);
@@ -201,7 +201,7 @@ impl Completions {
     ) {
         let data = func.data(ctx.db);
         let name = name.unwrap_or_else(|| data.name().to_string());
-        let ast_node = func.source(ctx.db).ast;
+        let ast_node = func.source(ctx.db).value;
         let detail = function_label(&ast_node);
 
         let mut builder =
@@ -234,7 +234,7 @@ impl Completions {
     }
 
     pub(crate) fn add_const(&mut self, ctx: &CompletionContext, constant: hir::Const) {
-        let ast_node = constant.source(ctx.db).ast;
+        let ast_node = constant.source(ctx.db).value;
         let name = match ast_node.name() {
             Some(name) => name,
             _ => return,
@@ -250,7 +250,7 @@ impl Completions {
     }
 
     pub(crate) fn add_type_alias(&mut self, ctx: &CompletionContext, type_alias: hir::TypeAlias) {
-        let type_def = type_alias.source(ctx.db).ast;
+        let type_def = type_alias.source(ctx.db).value;
         let name = match type_def.name() {
             Some(name) => name,
             _ => return,
diff --git a/crates/ra_ide_api/src/diagnostics.rs b/crates/ra_ide_api/src/diagnostics.rs
index e52ffefb3..cc1ccab4b 100644
--- a/crates/ra_ide_api/src/diagnostics.rs
+++ b/crates/ra_ide_api/src/diagnostics.rs
@@ -96,7 +96,7 @@ pub(crate) fn diagnostics(db: &RootDatabase, file_id: FileId) -> Vec<Diagnostic>
     });
     let source_file = db.parse(file_id).tree();
     let src =
-        hir::Source { file_id: file_id.into(), ast: hir::ModuleSource::SourceFile(source_file) };
+        hir::Source { file_id: file_id.into(), value: hir::ModuleSource::SourceFile(source_file) };
     if let Some(m) = hir::Module::from_definition(db, src) {
         m.diagnostics(db, &mut sink);
     };
diff --git a/crates/ra_ide_api/src/display/function_signature.rs b/crates/ra_ide_api/src/display/function_signature.rs
index 9075ca443..f42dffc87 100644
--- a/crates/ra_ide_api/src/display/function_signature.rs
+++ b/crates/ra_ide_api/src/display/function_signature.rs
@@ -48,12 +48,12 @@ impl FunctionSignature {
 
     pub(crate) fn from_hir(db: &db::RootDatabase, function: hir::Function) -> Self {
         let doc = function.docs(db);
-        let ast_node = function.source(db).ast;
+        let ast_node = function.source(db).value;
         FunctionSignature::from(&ast_node).with_doc_opt(doc)
     }
 
     pub(crate) fn from_struct(db: &db::RootDatabase, st: hir::Struct) -> Option<Self> {
-        let node: ast::StructDef = st.source(db).ast;
+        let node: ast::StructDef = st.source(db).value;
         match node.kind() {
             ast::StructKind::Named(_) => return None,
             _ => (),
@@ -87,7 +87,7 @@ impl FunctionSignature {
         db: &db::RootDatabase,
         variant: hir::EnumVariant,
     ) -> Option<Self> {
-        let node: ast::EnumVariant = variant.source(db).ast;
+        let node: ast::EnumVariant = variant.source(db).value;
         match node.kind() {
             ast::StructKind::Named(_) | ast::StructKind::Unit => return None,
             _ => (),
@@ -126,7 +126,7 @@ impl FunctionSignature {
     }
 
     pub(crate) fn from_macro(db: &db::RootDatabase, macro_def: hir::MacroDef) -> Option<Self> {
-        let node: ast::MacroCall = macro_def.source(db).ast;
+        let node: ast::MacroCall = macro_def.source(db).value;
 
         let params = vec![];
 
diff --git a/crates/ra_ide_api/src/display/navigation_target.rs b/crates/ra_ide_api/src/display/navigation_target.rs
index b30ef8e05..50accafd0 100644
--- a/crates/ra_ide_api/src/display/navigation_target.rs
+++ b/crates/ra_ide_api/src/display/navigation_target.rs
@@ -86,9 +86,9 @@ impl NavigationTarget {
                 name,
                 None,
                 frange.range,
-                src.ast.syntax().kind(),
-                src.ast.doc_comment_text(),
-                src.ast.short_label(),
+                src.value.syntax().kind(),
+                src.value.doc_comment_text(),
+                src.value.short_label(),
             );
         }
         module.to_nav(db)
@@ -146,9 +146,9 @@ impl NavigationTarget {
         description: Option<String>,
     ) -> NavigationTarget {
         //FIXME: use `_` instead of empty string
-        let name = node.ast.name().map(|it| it.text().clone()).unwrap_or_default();
+        let name = node.value.name().map(|it| it.text().clone()).unwrap_or_default();
         let focus_range =
-            node.ast.name().map(|it| original_range(db, node.with_ast(it.syntax())).range);
+            node.value.name().map(|it| original_range(db, node.with_ast(it.syntax())).range);
         let frange = original_range(db, node.map(|it| it.syntax()));
 
         NavigationTarget::from_syntax(
@@ -156,7 +156,7 @@ impl NavigationTarget {
             name,
             focus_range,
             frange.range,
-            node.ast.syntax().kind(),
+            node.value.syntax().kind(),
             docs,
             description,
         )
@@ -220,8 +220,8 @@ where
         NavigationTarget::from_named(
             db,
             src.as_ref().map(|it| it as &dyn ast::NameOwner),
-            src.ast.doc_comment_text(),
-            src.ast.short_label(),
+            src.value.doc_comment_text(),
+            src.value.short_label(),
         )
     }
 }
@@ -230,7 +230,7 @@ impl ToNav for hir::Module {
     fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
         let src = self.definition_source(db);
         let name = self.name(db).map(|it| it.to_string().into()).unwrap_or_default();
-        match &src.ast {
+        match &src.value {
             ModuleSource::SourceFile(node) => {
                 let frange = original_range(db, src.with_ast(node.syntax()));
 
@@ -271,7 +271,7 @@ impl ToNav for hir::ImplBlock {
             "impl".into(),
             None,
             frange.range,
-            src.ast.syntax().kind(),
+            src.value.syntax().kind(),
             None,
             None,
         )
@@ -282,7 +282,7 @@ impl ToNav for hir::StructField {
     fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
         let src = self.source(db);
 
-        match &src.ast {
+        match &src.value {
             FieldSource::Named(it) => NavigationTarget::from_named(
                 db,
                 src.with_ast(it),
@@ -308,11 +308,11 @@ impl ToNav for hir::StructField {
 impl ToNav for hir::MacroDef {
     fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
         let src = self.source(db);
-        log::debug!("nav target {:#?}", src.ast.syntax());
+        log::debug!("nav target {:#?}", src.value.syntax());
         NavigationTarget::from_named(
             db,
             src.as_ref().map(|it| it as &dyn ast::NameOwner),
-            src.ast.doc_comment_text(),
+            src.value.doc_comment_text(),
             None,
         )
     }
@@ -341,7 +341,7 @@ impl ToNav for hir::AssocItem {
 impl ToNav for hir::Local {
     fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
         let src = self.source(db);
-        let (full_range, focus_range) = match src.ast {
+        let (full_range, focus_range) = match src.value {
             Either::A(it) => {
                 (it.syntax().text_range(), it.name().map(|it| it.syntax().text_range()))
             }
diff --git a/crates/ra_ide_api/src/expand.rs b/crates/ra_ide_api/src/expand.rs
index 7f59e46d2..0228bced9 100644
--- a/crates/ra_ide_api/src/expand.rs
+++ b/crates/ra_ide_api/src/expand.rs
@@ -12,7 +12,7 @@ pub(crate) fn original_range(db: &RootDatabase, node: Source<&SyntaxNode>) -> Fi
         None => {
             return FileRange {
                 file_id: node.file_id.original_file(db),
-                range: node.ast.text_range(),
+                range: node.value.text_range(),
             }
         }
         Some(it) => it,
@@ -25,14 +25,18 @@ pub(crate) fn original_range(db: &RootDatabase, node: Source<&SyntaxNode>) -> Fi
     // *Second*, we should handle recurside macro expansions
 
     let token = node
-        .ast
+        .value
         .descendants_with_tokens()
         .filter_map(|it| it.into_token())
         .find_map(|it| expansion.map_token_up(node.with_ast(&it)));
 
     match token {
-        Some(it) => FileRange { file_id: it.file_id.original_file(db), range: it.ast.text_range() },
-        None => FileRange { file_id: node.file_id.original_file(db), range: node.ast.text_range() },
+        Some(it) => {
+            FileRange { file_id: it.file_id.original_file(db), range: it.value.text_range() }
+        }
+        None => {
+            FileRange { file_id: node.file_id.original_file(db), range: node.value.text_range() }
+        }
     }
 }
 
@@ -44,13 +48,13 @@ pub(crate) fn descend_into_macros(
     let src = Source::new(file_id.into(), token);
 
     successors(Some(src), |token| {
-        let macro_call = token.ast.ancestors().find_map(ast::MacroCall::cast)?;
+        let macro_call = token.value.ancestors().find_map(ast::MacroCall::cast)?;
         let tt = macro_call.token_tree()?;
-        if !token.ast.text_range().is_subrange(&tt.syntax().text_range()) {
+        if !token.value.text_range().is_subrange(&tt.syntax().text_range()) {
             return None;
         }
         let source_analyzer =
-            hir::SourceAnalyzer::new(db, token.with_ast(token.ast.parent()).as_ref(), None);
+            hir::SourceAnalyzer::new(db, token.with_ast(token.value.parent()).as_ref(), None);
         let exp = source_analyzer.expand(db, &macro_call)?;
         exp.map_token_down(db, token.as_ref())
     })
diff --git a/crates/ra_ide_api/src/expand_macro.rs b/crates/ra_ide_api/src/expand_macro.rs
index e9eb2a7fb..2d478ec09 100644
--- a/crates/ra_ide_api/src/expand_macro.rs
+++ b/crates/ra_ide_api/src/expand_macro.rs
@@ -46,7 +46,7 @@ fn expand_macro_recur(
     let mut replaces = FxHashMap::default();
 
     for child in children.into_iter() {
-        let source = hir::Source::new(macro_file_id, source.ast);
+        let source = hir::Source::new(macro_file_id, source.value);
         let new_node = expand_macro_recur(db, source, &child)?;
 
         replaces.insert(child.syntax().clone().into(), new_node.into());
@@ -139,7 +139,7 @@ mod tests {
         }
         macro_rules! baz {
             () => { foo!(); }
-        }        
+        }
         f<|>oo!();
         "#,
         );
@@ -156,7 +156,7 @@ fn b(){}
             r#"
         //- /lib.rs
         macro_rules! foo {
-            () => { 
+            () => {
                 fn some_thing() -> u32 {
                     let a = 0;
                     a + 10
@@ -172,7 +172,7 @@ fn b(){}
 fn some_thing() -> u32 {
   let a = 0;
   a+10
-}        
+}
 "###);
     }
 }
diff --git a/crates/ra_ide_api/src/goto_definition.rs b/crates/ra_ide_api/src/goto_definition.rs
index 3f16e9566..ed9d99a7f 100644
--- a/crates/ra_ide_api/src/goto_definition.rs
+++ b/crates/ra_ide_api/src/goto_definition.rs
@@ -23,7 +23,7 @@ pub(crate) fn goto_definition(
     let token = descend_into_macros(db, position.file_id, token);
 
     let res = match_ast! {
-        match (token.ast.parent()) {
+        match (token.value.parent()) {
             ast::NameRef(name_ref) => {
                 let navs = reference_definition(db, token.with_ast(&name_ref)).to_vec();
                 RangeInfo::new(name_ref.syntax().text_range(), navs.to_vec())
@@ -84,7 +84,7 @@ pub(crate) fn reference_definition(
     };
 
     // Fallback index based approach:
-    let navs = crate::symbol_index::index_resolve(db, name_ref.ast)
+    let navs = crate::symbol_index::index_resolve(db, name_ref.value)
         .into_iter()
         .map(|s| s.to_nav(db))
         .collect();
@@ -95,7 +95,7 @@ pub(crate) fn name_definition(
     db: &RootDatabase,
     name: Source<&ast::Name>,
 ) -> Option<Vec<NavigationTarget>> {
-    let parent = name.ast.syntax().parent()?;
+    let parent = name.value.syntax().parent()?;
 
     if let Some(module) = ast::Module::cast(parent.clone()) {
         if module.has_semi() {
@@ -116,7 +116,7 @@ pub(crate) fn name_definition(
 
 fn named_target(db: &RootDatabase, node: Source<&SyntaxNode>) -> Option<NavigationTarget> {
     match_ast! {
-        match (node.ast) {
+        match (node.value) {
             ast::StructDef(it) => {
                 Some(NavigationTarget::from_named(
                     db,
diff --git a/crates/ra_ide_api/src/goto_type_definition.rs b/crates/ra_ide_api/src/goto_type_definition.rs
index 7d694e1f6..6aeeefa1f 100644
--- a/crates/ra_ide_api/src/goto_type_definition.rs
+++ b/crates/ra_ide_api/src/goto_type_definition.rs
@@ -16,7 +16,7 @@ pub(crate) fn goto_type_definition(
     let token = file.token_at_offset(position.offset).filter(|it| !it.kind().is_trivia()).next()?;
     let token = descend_into_macros(db, position.file_id, token);
 
-    let node = token.ast.ancestors().find_map(|token| {
+    let node = token.value.ancestors().find_map(|token| {
         token
             .ancestors()
             .find(|n| ast::Expr::cast(n.clone()).is_some() || ast::Pat::cast(n.clone()).is_some())
diff --git a/crates/ra_ide_api/src/hover.rs b/crates/ra_ide_api/src/hover.rs
index 787b714b3..e8a340ba4 100644
--- a/crates/ra_ide_api/src/hover.rs
+++ b/crates/ra_ide_api/src/hover.rs
@@ -101,11 +101,11 @@ fn hover_text_from_name_kind(
     return match name_kind {
         Macro(it) => {
             let src = it.source(db);
-            hover_text(src.ast.doc_comment_text(), Some(macro_label(&src.ast)))
+            hover_text(src.value.doc_comment_text(), Some(macro_label(&src.value)))
         }
         Field(it) => {
             let src = it.source(db);
-            match src.ast {
+            match src.value {
                 hir::FieldSource::Named(it) => hover_text(it.doc_comment_text(), it.short_label()),
                 _ => None,
             }
@@ -116,7 +116,7 @@ fn hover_text_from_name_kind(
             hir::AssocItem::TypeAlias(it) => from_def_source(db, it),
         },
         Def(it) => match it {
-            hir::ModuleDef::Module(it) => match it.definition_source(db).ast {
+            hir::ModuleDef::Module(it) => match it.definition_source(db).value {
                 hir::ModuleSource::Module(it) => {
                     hover_text(it.doc_comment_text(), it.short_label())
                 }
@@ -158,7 +158,7 @@ fn hover_text_from_name_kind(
         A: ast::DocCommentsOwner + ast::NameOwner + ShortLabel,
     {
         let src = def.source(db);
-        hover_text(src.ast.doc_comment_text(), src.ast.short_label())
+        hover_text(src.value.doc_comment_text(), src.value.short_label())
     }
 }
 
@@ -170,7 +170,7 @@ pub(crate) fn hover(db: &RootDatabase, position: FilePosition) -> Option<RangeIn
     let mut res = HoverResult::new();
 
     let mut range = match_ast! {
-        match (token.ast.parent()) {
+        match (token.value.parent()) {
             ast::NameRef(name_ref) => {
                 let mut no_fallback = false;
                 if let Some(name_kind) =
@@ -211,7 +211,7 @@ pub(crate) fn hover(db: &RootDatabase, position: FilePosition) -> Option<RangeIn
     };
 
     if range.is_none() {
-        let node = token.ast.ancestors().find(|n| {
+        let node = token.value.ancestors().find(|n| {
             ast::Expr::cast(n.clone()).is_some() || ast::Pat::cast(n.clone()).is_some()
         })?;
         let frange = FileRange { file_id: position.file_id, range: node.text_range() };
diff --git a/crates/ra_ide_api/src/impls.rs b/crates/ra_ide_api/src/impls.rs
index bc9b66550..3e3012559 100644
--- a/crates/ra_ide_api/src/impls.rs
+++ b/crates/ra_ide_api/src/impls.rs
@@ -16,7 +16,7 @@ pub(crate) fn goto_implementation(
     let src = hir::ModuleSource::from_position(db, position);
     let module = hir::Module::from_definition(
         db,
-        hir::Source { file_id: position.file_id.into(), ast: src },
+        hir::Source { file_id: position.file_id.into(), value: src },
     )?;
 
     if let Some(nominal_def) = find_node_at_offset::<ast::NominalDef>(&syntax, position.offset) {
@@ -42,11 +42,11 @@ fn impls_for_def(
 ) -> Option<Vec<NavigationTarget>> {
     let ty = match node {
         ast::NominalDef::StructDef(def) => {
-            let src = hir::Source { file_id: position.file_id.into(), ast: def.clone() };
+            let src = hir::Source { file_id: position.file_id.into(), value: def.clone() };
             hir::Struct::from_source(db, src)?.ty(db)
         }
         ast::NominalDef::EnumDef(def) => {
-            let src = hir::Source { file_id: position.file_id.into(), ast: def.clone() };
+            let src = hir::Source { file_id: position.file_id.into(), value: def.clone() };
             hir::Enum::from_source(db, src)?.ty(db)
         }
     };
@@ -69,7 +69,7 @@ fn impls_for_trait(
     node: &ast::TraitDef,
     module: hir::Module,
 ) -> Option<Vec<NavigationTarget>> {
-    let src = hir::Source { file_id: position.file_id.into(), ast: node.clone() };
+    let src = hir::Source { file_id: position.file_id.into(), value: node.clone() };
     let tr = hir::Trait::from_source(db, src)?;
 
     let krate = module.krate();
diff --git a/crates/ra_ide_api/src/parent_module.rs b/crates/ra_ide_api/src/parent_module.rs
index 4c57566e2..fa232a379 100644
--- a/crates/ra_ide_api/src/parent_module.rs
+++ b/crates/ra_ide_api/src/parent_module.rs
@@ -10,7 +10,7 @@ pub(crate) fn parent_module(db: &RootDatabase, position: FilePosition) -> Vec<Na
     let src = hir::ModuleSource::from_position(db, position);
     let module = match hir::Module::from_definition(
         db,
-        hir::Source { file_id: position.file_id.into(), ast: src },
+        hir::Source { file_id: position.file_id.into(), value: src },
     ) {
         None => return Vec::new(),
         Some(it) => it,
@@ -23,7 +23,8 @@ pub(crate) fn parent_module(db: &RootDatabase, position: FilePosition) -> Vec<Na
 pub(crate) fn crate_for(db: &RootDatabase, file_id: FileId) -> Vec<CrateId> {
     let src = hir::ModuleSource::from_file_id(db, file_id);
     let module =
-        match hir::Module::from_definition(db, hir::Source { file_id: file_id.into(), ast: src }) {
+        match hir::Module::from_definition(db, hir::Source { file_id: file_id.into(), value: src })
+        {
             Some(it) => it,
             None => return Vec::new(),
         };
diff --git a/crates/ra_ide_api/src/references/classify.rs b/crates/ra_ide_api/src/references/classify.rs
index ea9d20e71..333264540 100644
--- a/crates/ra_ide_api/src/references/classify.rs
+++ b/crates/ra_ide_api/src/references/classify.rs
@@ -13,7 +13,7 @@ use crate::db::RootDatabase;
 
 pub(crate) fn classify_name(db: &RootDatabase, name: Source<&ast::Name>) -> Option<NameDefinition> {
     let _p = profile("classify_name");
-    let parent = name.ast.syntax().parent()?;
+    let parent = name.value.syntax().parent()?;
 
     match_ast! {
         match parent {
@@ -121,7 +121,7 @@ pub(crate) fn classify_name_ref(
 ) -> Option<NameDefinition> {
     let _p = profile("classify_name_ref");
 
-    let parent = name_ref.ast.syntax().parent()?;
+    let parent = name_ref.value.syntax().parent()?;
     let analyzer = SourceAnalyzer::new(db, name_ref.map(|it| it.syntax()), None);
 
     if let Some(method_call) = ast::MethodCallExpr::cast(parent.clone()) {
@@ -142,7 +142,7 @@ pub(crate) fn classify_name_ref(
         tested_by!(goto_definition_works_for_record_fields);
         if let Some(record_lit) = record_field.syntax().ancestors().find_map(ast::RecordLit::cast) {
             let variant_def = analyzer.resolve_record_literal(&record_lit)?;
-            let hir_path = Path::from_name_ref(name_ref.ast);
+            let hir_path = Path::from_name_ref(name_ref.value);
             let hir_name = hir_path.as_ident()?;
             let field = variant_def.field(db, hir_name)?;
             return Some(from_struct_field(db, field));
@@ -162,7 +162,7 @@ pub(crate) fn classify_name_ref(
         }
     }
 
-    let path = name_ref.ast.syntax().ancestors().find_map(ast::Path::cast)?;
+    let path = name_ref.value.syntax().ancestors().find_map(ast::Path::cast)?;
     let resolved = analyzer.resolve_path(db, &path)?;
     match resolved {
         PathResolution::Def(def) => Some(from_module_def(db, def, Some(container))),
diff --git a/crates/ra_ide_api/src/references/name_definition.rs b/crates/ra_ide_api/src/references/name_definition.rs
index ccd75278a..aca23f79e 100644
--- a/crates/ra_ide_api/src/references/name_definition.rs
+++ b/crates/ra_ide_api/src/references/name_definition.rs
@@ -32,9 +32,9 @@ pub(crate) struct NameDefinition {
 pub(super) fn from_assoc_item(db: &RootDatabase, item: AssocItem) -> NameDefinition {
     let container = item.module(db);
     let visibility = match item {
-        AssocItem::Function(f) => f.source(db).ast.visibility(),
-        AssocItem::Const(c) => c.source(db).ast.visibility(),
-        AssocItem::TypeAlias(a) => a.source(db).ast.visibility(),
+        AssocItem::Function(f) => f.source(db).value.visibility(),
+        AssocItem::Const(c) => c.source(db).value.visibility(),
+        AssocItem::TypeAlias(a) => a.source(db).value.visibility(),
     };
     let kind = NameKind::AssocItem(item);
     NameDefinition { kind, container, visibility }
@@ -45,8 +45,8 @@ pub(super) fn from_struct_field(db: &RootDatabase, field: StructField) -> NameDe
     let parent = field.parent_def(db);
     let container = parent.module(db);
     let visibility = match parent {
-        VariantDef::Struct(s) => s.source(db).ast.visibility(),
-        VariantDef::EnumVariant(e) => e.source(db).ast.parent_enum().visibility(),
+        VariantDef::Struct(s) => s.source(db).value.visibility(),
+        VariantDef::EnumVariant(e) => e.source(db).value.parent_enum().visibility(),
     };
     NameDefinition { kind, container, visibility }
 }
@@ -60,22 +60,22 @@ pub(super) fn from_module_def(
     let (container, visibility) = match def {
         ModuleDef::Module(it) => {
             let container = it.parent(db).or_else(|| Some(it)).unwrap();
-            let visibility = it.declaration_source(db).and_then(|s| s.ast.visibility());
+            let visibility = it.declaration_source(db).and_then(|s| s.value.visibility());
             (container, visibility)
         }
         ModuleDef::EnumVariant(it) => {
             let container = it.module(db);
-            let visibility = it.source(db).ast.parent_enum().visibility();
+            let visibility = it.source(db).value.parent_enum().visibility();
             (container, visibility)
         }
-        ModuleDef::Function(it) => (it.module(db), it.source(db).ast.visibility()),
-        ModuleDef::Const(it) => (it.module(db), it.source(db).ast.visibility()),
-        ModuleDef::Static(it) => (it.module(db), it.source(db).ast.visibility()),
-        ModuleDef::Trait(it) => (it.module(db), it.source(db).ast.visibility()),
-        ModuleDef::TypeAlias(it) => (it.module(db), it.source(db).ast.visibility()),
-        ModuleDef::Adt(Adt::Struct(it)) => (it.module(db), it.source(db).ast.visibility()),
-        ModuleDef::Adt(Adt::Union(it)) => (it.module(db), it.source(db).ast.visibility()),
-        ModuleDef::Adt(Adt::Enum(it)) => (it.module(db), it.source(db).ast.visibility()),
+        ModuleDef::Function(it) => (it.module(db), it.source(db).value.visibility()),
+        ModuleDef::Const(it) => (it.module(db), it.source(db).value.visibility()),
+        ModuleDef::Static(it) => (it.module(db), it.source(db).value.visibility()),
+        ModuleDef::Trait(it) => (it.module(db), it.source(db).value.visibility()),
+        ModuleDef::TypeAlias(it) => (it.module(db), it.source(db).value.visibility()),
+        ModuleDef::Adt(Adt::Struct(it)) => (it.module(db), it.source(db).value.visibility()),
+        ModuleDef::Adt(Adt::Union(it)) => (it.module(db), it.source(db).value.visibility()),
+        ModuleDef::Adt(Adt::Enum(it)) => (it.module(db), it.source(db).value.visibility()),
         ModuleDef::BuiltinType(..) => (module.unwrap(), None),
     };
     NameDefinition { kind, container, visibility }
diff --git a/crates/ra_ide_api/src/references/rename.rs b/crates/ra_ide_api/src/references/rename.rs
index 11f81cbb3..4ea372e6f 100644
--- a/crates/ra_ide_api/src/references/rename.rs
+++ b/crates/ra_ide_api/src/references/rename.rs
@@ -55,11 +55,11 @@ fn rename_mod(
 ) -> Option<SourceChange> {
     let mut source_file_edits = Vec::new();
     let mut file_system_edits = Vec::new();
-    let module_src = hir::Source { file_id: position.file_id.into(), ast: ast_module.clone() };
+    let module_src = hir::Source { file_id: position.file_id.into(), value: ast_module.clone() };
     if let Some(module) = hir::Module::from_declaration(db, module_src) {
         let src = module.definition_source(db);
         let file_id = src.file_id.original_file(db);
-        match src.ast {
+        match src.value {
             ModuleSource::SourceFile(..) => {
                 let mod_path: RelativePathBuf = db.file_relative_path(file_id);
                 // mod is defined in path/to/dir/mod.rs
diff --git a/crates/ra_ide_api/src/references/search_scope.rs b/crates/ra_ide_api/src/references/search_scope.rs
index 2907787c2..f5c9589f4 100644
--- a/crates/ra_ide_api/src/references/search_scope.rs
+++ b/crates/ra_ide_api/src/references/search_scope.rs
@@ -73,9 +73,9 @@ impl NameDefinition {
 
         if let NameKind::Local(var) = self.kind {
             let range = match var.parent(db) {
-                DefWithBody::Function(f) => f.source(db).ast.syntax().text_range(),
-                DefWithBody::Const(c) => c.source(db).ast.syntax().text_range(),
-                DefWithBody::Static(s) => s.source(db).ast.syntax().text_range(),
+                DefWithBody::Function(f) => f.source(db).value.syntax().text_range(),
+                DefWithBody::Const(c) => c.source(db).value.syntax().text_range(),
+                DefWithBody::Static(s) => s.source(db).value.syntax().text_range(),
             };
             let mut res = FxHashMap::default();
             res.insert(file_id, Some(range));
@@ -91,7 +91,7 @@ impl NameDefinition {
                 let parent_src = parent_module.definition_source(db);
                 let file_id = parent_src.file_id.original_file(db);
 
-                match parent_src.ast {
+                match parent_src.value {
                     ModuleSource::Module(m) => {
                         let range = Some(m.syntax().text_range());
                         res.insert(file_id, range);
@@ -135,7 +135,7 @@ impl NameDefinition {
         }
 
         let mut res = FxHashMap::default();
-        let range = match module_src.ast {
+        let range = match module_src.value {
             ModuleSource::Module(m) => Some(m.syntax().text_range()),
             ModuleSource::SourceFile(_) => None,
         };