3 files changed, 64 insertions, 4 deletions

diff --git a/crates/ra_syntax/src/ast.rs b/crates/ra_syntax/src/ast.rs
index 3e948800e..e968c9728 100644
--- a/crates/ra_syntax/src/ast.rs
+++ b/crates/ra_syntax/src/ast.rs
@@ -30,6 +30,12 @@ pub trait NameOwner<'a>: AstNode<'a> {
     }
 }
 
+pub trait VisibilityOwner<'a>: AstNode<'a> {
+    fn visibility(self) -> Option<Visibility<'a>> {
+        child_opt(self)
+    }
+}
+
 pub trait LoopBodyOwner<'a>: AstNode<'a> {
     fn loop_body(self) -> Option<Block<'a>> {
         child_opt(self)
diff --git a/crates/ra_syntax/src/ast/generated.rs b/crates/ra_syntax/src/ast/generated.rs
index c5ac90a62..c619fc130 100644
--- a/crates/ra_syntax/src/ast/generated.rs
+++ b/crates/ra_syntax/src/ast/generated.rs
@@ -695,6 +695,7 @@ impl<R: TreeRoot<RaTypes>> ConstDefNode<R> {
 }
 
 
+impl<'a> ast::VisibilityOwner<'a> for ConstDef<'a> {}
 impl<'a> ast::NameOwner<'a> for ConstDef<'a> {}
 impl<'a> ast::TypeParamsOwner<'a> for ConstDef<'a> {}
 impl<'a> ast::AttrsOwner<'a> for ConstDef<'a> {}
@@ -810,6 +811,7 @@ impl<R: TreeRoot<RaTypes>> EnumDefNode<R> {
 }
 
 
+impl<'a> ast::VisibilityOwner<'a> for EnumDef<'a> {}
 impl<'a> ast::NameOwner<'a> for EnumDef<'a> {}
 impl<'a> ast::TypeParamsOwner<'a> for EnumDef<'a> {}
 impl<'a> ast::AttrsOwner<'a> for EnumDef<'a> {}
@@ -1213,6 +1215,7 @@ impl<R: TreeRoot<RaTypes>> FnDefNode<R> {
 }
 
 
+impl<'a> ast::VisibilityOwner<'a> for FnDef<'a> {}
 impl<'a> ast::NameOwner<'a> for FnDef<'a> {}
 impl<'a> ast::TypeParamsOwner<'a> for FnDef<'a> {}
 impl<'a> ast::AttrsOwner<'a> for FnDef<'a> {}
@@ -2136,6 +2139,7 @@ impl<R: TreeRoot<RaTypes>> ModuleNode<R> {
 }
 
 
+impl<'a> ast::VisibilityOwner<'a> for Module<'a> {}
 impl<'a> ast::NameOwner<'a> for Module<'a> {}
 impl<'a> ast::AttrsOwner<'a> for Module<'a> {}
 impl<'a> ast::DocCommentsOwner<'a> for Module<'a> {}
@@ -2351,6 +2355,7 @@ impl<R: TreeRoot<RaTypes>> NamedFieldDefNode<R> {
 }
 
 
+impl<'a> ast::VisibilityOwner<'a> for NamedFieldDef<'a> {}
 impl<'a> ast::NameOwner<'a> for NamedFieldDef<'a> {}
 impl<'a> ast::AttrsOwner<'a> for NamedFieldDef<'a> {}
 impl<'a> NamedFieldDef<'a> {
@@ -3082,6 +3087,7 @@ impl<R: TreeRoot<RaTypes>> PosFieldNode<R> {
 }
 
 
+impl<'a> ast::VisibilityOwner<'a> for PosField<'a> {}
 impl<'a> ast::AttrsOwner<'a> for PosField<'a> {}
 impl<'a> PosField<'a> {
     pub fn type_ref(self) -> Option<TypeRef<'a>> {
@@ -3639,6 +3645,7 @@ impl<R: TreeRoot<RaTypes>> StaticDefNode<R> {
 }
 
 
+impl<'a> ast::VisibilityOwner<'a> for StaticDef<'a> {}
 impl<'a> ast::NameOwner<'a> for StaticDef<'a> {}
 impl<'a> ast::TypeParamsOwner<'a> for StaticDef<'a> {}
 impl<'a> ast::AttrsOwner<'a> for StaticDef<'a> {}
@@ -3742,6 +3749,7 @@ impl<R: TreeRoot<RaTypes>> StructDefNode<R> {
 }
 
 
+impl<'a> ast::VisibilityOwner<'a> for StructDef<'a> {}
 impl<'a> ast::NameOwner<'a> for StructDef<'a> {}
 impl<'a> ast::TypeParamsOwner<'a> for StructDef<'a> {}
 impl<'a> ast::AttrsOwner<'a> for StructDef<'a> {}
@@ -3902,6 +3910,7 @@ impl<R: TreeRoot<RaTypes>> TraitDefNode<R> {
 }
 
 
+impl<'a> ast::VisibilityOwner<'a> for TraitDef<'a> {}
 impl<'a> ast::NameOwner<'a> for TraitDef<'a> {}
 impl<'a> ast::AttrsOwner<'a> for TraitDef<'a> {}
 impl<'a> ast::DocCommentsOwner<'a> for TraitDef<'a> {}
@@ -4135,6 +4144,7 @@ impl<R: TreeRoot<RaTypes>> TypeDefNode<R> {
 }
 
 
+impl<'a> ast::VisibilityOwner<'a> for TypeDef<'a> {}
 impl<'a> ast::NameOwner<'a> for TypeDef<'a> {}
 impl<'a> ast::TypeParamsOwner<'a> for TypeDef<'a> {}
 impl<'a> ast::AttrsOwner<'a> for TypeDef<'a> {}
@@ -4409,6 +4419,43 @@ impl<'a> UseTreeList<'a> {
     }
 }
 
+// Visibility
+#[derive(Debug, Clone, Copy,)]
+pub struct VisibilityNode<R: TreeRoot<RaTypes> = OwnedRoot> {
+    pub(crate) syntax: SyntaxNode<R>,
+}
+pub type Visibility<'a> = VisibilityNode<RefRoot<'a>>;
+
+impl<R1: TreeRoot<RaTypes>, R2: TreeRoot<RaTypes>> PartialEq<VisibilityNode<R1>> for VisibilityNode<R2> {
+    fn eq(&self, other: &VisibilityNode<R1>) -> bool { self.syntax == other.syntax }
+}
+impl<R: TreeRoot<RaTypes>> Eq for VisibilityNode<R> {}
+impl<R: TreeRoot<RaTypes>> Hash for VisibilityNode<R> {
+    fn hash<H: Hasher>(&self, state: &mut H) { self.syntax.hash(state) }
+}
+
+impl<'a> AstNode<'a> for Visibility<'a> {
+    fn cast(syntax: SyntaxNodeRef<'a>) -> Option<Self> {
+        match syntax.kind() {
+            VISIBILITY => Some(Visibility { syntax }),
+            _ => None,
+        }
+    }
+    fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
+}
+
+impl<R: TreeRoot<RaTypes>> VisibilityNode<R> {
+    pub fn borrowed(&self) -> Visibility {
+        VisibilityNode { syntax: self.syntax.borrowed() }
+    }
+    pub fn owned(&self) -> VisibilityNode {
+        VisibilityNode { syntax: self.syntax.owned() }
+    }
+}
+
+
+impl<'a> Visibility<'a> {}
+
 // WhereClause
 #[derive(Debug, Clone, Copy,)]
 pub struct WhereClauseNode<R: TreeRoot<RaTypes> = OwnedRoot> {
diff --git a/crates/ra_syntax/src/grammar.ron b/crates/ra_syntax/src/grammar.ron
index aab4839a9..2abb9da61 100644
--- a/crates/ra_syntax/src/grammar.ron
+++ b/crates/ra_syntax/src/grammar.ron
@@ -247,6 +247,7 @@ Grammar(
         ),
         "FnDef": (
             traits: [
+                "VisibilityOwner",
                 "NameOwner",
                 "TypeParamsOwner",
                 "AttrsOwner",
@@ -257,6 +258,7 @@ Grammar(
         "RetType": (options: ["TypeRef"]),
         "StructDef": (
             traits: [
+                "VisibilityOwner",
                 "NameOwner",
                 "TypeParamsOwner",
                 "AttrsOwner",
@@ -264,10 +266,11 @@ Grammar(
             ]
         ),
         "NamedFieldDefList": (collections: [["fields", "NamedFieldDef"]]),
-        "NamedFieldDef": ( traits: ["NameOwner", "AttrsOwner"], options: ["TypeRef"] ),
+        "NamedFieldDef": ( traits: ["VisibilityOwner", "NameOwner", "AttrsOwner"], options: ["TypeRef"] ),
         "PosFieldList": (collections: [["fields", "PosField"]]),
-        "PosField": ( traits: ["AttrsOwner"], options: ["TypeRef"]),
+        "PosField": ( traits: ["VisibilityOwner", "AttrsOwner"], options: ["TypeRef"]),
         "EnumDef": ( traits: [
+            "VisibilityOwner",
             "NameOwner",
             "TypeParamsOwner",
             "AttrsOwner",
@@ -275,27 +278,30 @@ Grammar(
         ], options: [["variant_list", "EnumVariantList"]] ),
         "EnumVariantList": ( collections: [["variants", "EnumVariant"]] ),
         "EnumVariant": ( traits: ["NameOwner"], options: ["Expr"] ),
-        "TraitDef": ( traits: ["NameOwner", "AttrsOwner", "DocCommentsOwner"] ),
+        "TraitDef": ( traits: ["VisibilityOwner", "NameOwner", "AttrsOwner", "DocCommentsOwner"] ),
         "Module": (
-            traits: ["NameOwner", "AttrsOwner", "DocCommentsOwner" ],
+            traits: ["VisibilityOwner", "NameOwner", "AttrsOwner", "DocCommentsOwner" ],
             options: [ "ItemList" ]
         ),
         "ItemList": (
             traits: [ "FnDefOwner", "ModuleItemOwner" ],
         ),
         "ConstDef": ( traits: [
+            "VisibilityOwner",
             "NameOwner",
             "TypeParamsOwner",
             "AttrsOwner",
             "DocCommentsOwner"
         ] ),
         "StaticDef": ( traits: [
+            "VisibilityOwner",
             "NameOwner",
             "TypeParamsOwner",
             "AttrsOwner",
             "DocCommentsOwner"
         ] ),
         "TypeDef": ( traits: [
+            "VisibilityOwner",
             "NameOwner",
             "TypeParamsOwner",
             "AttrsOwner",
@@ -482,6 +488,7 @@ Grammar(
             ],
         ),
 
+        "Visibility": (),
         "Name": (),
         "NameRef": (),
         "MacroCall": ( options: [ "TokenTree", "Path" ] ),