From 072028e67996162f5a9da14cfd59ed64de5e8729 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Fri, 28 Dec 2018 13:27:30 +0300
Subject: add macro-call node

---
 crates/ra_analysis/src/syntax_highlighting.rs |  6 ++--
 crates/ra_syntax/src/ast/generated.rs         | 41 +++++++++++++++++++++++++++
 crates/ra_syntax/src/grammar.ron              |  1 +
 3 files changed, 46 insertions(+), 2 deletions(-)

diff --git a/crates/ra_analysis/src/syntax_highlighting.rs b/crates/ra_analysis/src/syntax_highlighting.rs
index 65409beb2..0bf19eea0 100644
--- a/crates/ra_analysis/src/syntax_highlighting.rs
+++ b/crates/ra_analysis/src/syntax_highlighting.rs
@@ -7,6 +7,8 @@ use crate::{
 };
 
 pub(crate) fn highlight(db: &RootDatabase, file_id: FileId) -> Cancelable<Vec<HighlightedRange>> {
-    let file = db.source_file(file_id);
-    Ok(ra_editor::highlight(&file))
+    let source_file = db.source_file(file_id);
+    let mut res = ra_editor::highlight(&source_file);
+    for node in source_file.syntax().descendants() {}
+    Ok(res)
 }
diff --git a/crates/ra_syntax/src/ast/generated.rs b/crates/ra_syntax/src/ast/generated.rs
index c22e026cf..b0d2c3e20 100644
--- a/crates/ra_syntax/src/ast/generated.rs
+++ b/crates/ra_syntax/src/ast/generated.rs
@@ -1838,6 +1838,47 @@ impl<R: TreeRoot<RaTypes>> LoopExprNode<R> {
 impl<'a> ast::LoopBodyOwner<'a> for LoopExpr<'a> {}
 impl<'a> LoopExpr<'a> {}
 
+// MacroCall
+#[derive(Debug, Clone, Copy,)]
+pub struct MacroCallNode<R: TreeRoot<RaTypes> = OwnedRoot> {
+    pub(crate) syntax: SyntaxNode<R>,
+}
+pub type MacroCall<'a> = MacroCallNode<RefRoot<'a>>;
+
+impl<R1: TreeRoot<RaTypes>, R2: TreeRoot<RaTypes>> PartialEq<MacroCallNode<R1>> for MacroCallNode<R2> {
+    fn eq(&self, other: &MacroCallNode<R1>) -> bool { self.syntax == other.syntax }
+}
+impl<R: TreeRoot<RaTypes>> Eq for MacroCallNode<R> {}
+impl<R: TreeRoot<RaTypes>> Hash for MacroCallNode<R> {
+    fn hash<H: Hasher>(&self, state: &mut H) { self.syntax.hash(state) }
+}
+
+impl<'a> AstNode<'a> for MacroCall<'a> {
+    fn cast(syntax: SyntaxNodeRef<'a>) -> Option<Self> {
+        match syntax.kind() {
+            MACRO_CALL => Some(MacroCall { syntax }),
+            _ => None,
+        }
+    }
+    fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
+}
+
+impl<R: TreeRoot<RaTypes>> MacroCallNode<R> {
+    pub fn borrowed(&self) -> MacroCall {
+        MacroCallNode { syntax: self.syntax.borrowed() }
+    }
+    pub fn owned(&self) -> MacroCallNode {
+        MacroCallNode { syntax: self.syntax.owned() }
+    }
+}
+
+
+impl<'a> MacroCall<'a> {
+    pub fn token_tree(self) -> Option<TokenTree<'a>> {
+        super::child_opt(self)
+    }
+}
+
 // MatchArm
 #[derive(Debug, Clone, Copy,)]
 pub struct MatchArmNode<R: TreeRoot<RaTypes> = OwnedRoot> {
diff --git a/crates/ra_syntax/src/grammar.ron b/crates/ra_syntax/src/grammar.ron
index 4bcff4e14..07b8433b2 100644
--- a/crates/ra_syntax/src/grammar.ron
+++ b/crates/ra_syntax/src/grammar.ron
@@ -484,6 +484,7 @@ Grammar(
 
         "Name": (),
         "NameRef": (),
+        "MacroCall": ( options: [ "TokenTree" ] ),
         "Attr": ( options: [ ["value", "TokenTree"] ] ),
         "TokenTree": (),
         "TypeParamList": (
-- 
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