From 862c99d0d5ef7c791a9319fa76c436762d88460c Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Mon, 31 Dec 2018 19:06:00 +0300
Subject: generalize highlighting to work with nodes

---
 crates/ra_analysis/src/syntax_highlighting.rs | 4 ++--
 crates/ra_editor/src/lib.rs                   | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/crates/ra_analysis/src/syntax_highlighting.rs b/crates/ra_analysis/src/syntax_highlighting.rs
index 38219da71..7e9139a74 100644
--- a/crates/ra_analysis/src/syntax_highlighting.rs
+++ b/crates/ra_analysis/src/syntax_highlighting.rs
@@ -9,14 +9,14 @@ use crate::{
 
 pub(crate) fn highlight(db: &RootDatabase, file_id: FileId) -> Cancelable<Vec<HighlightedRange>> {
     let source_file = db.source_file(file_id);
-    let mut res = ra_editor::highlight(&source_file);
+    let mut res = ra_editor::highlight(source_file.syntax());
     for macro_call in source_file
         .syntax()
         .descendants()
         .filter_map(ast::MacroCall::cast)
     {
         if let Some(exp) = crate::macros::expand(db, file_id, macro_call) {
-            let mapped_ranges = ra_editor::highlight(exp.source_file())
+            let mapped_ranges = ra_editor::highlight(exp.source_file().syntax())
                 .into_iter()
                 .filter_map(|r| {
                     let mapped_range = exp.map_range_back(r.range)?;
diff --git a/crates/ra_editor/src/lib.rs b/crates/ra_editor/src/lib.rs
index a65637d52..a293fec34 100644
--- a/crates/ra_editor/src/lib.rs
+++ b/crates/ra_editor/src/lib.rs
@@ -79,11 +79,11 @@ pub fn matching_brace(file: &SourceFileNode, offset: TextUnit) -> Option<TextUni
     Some(matching_node.range().start())
 }
 
-pub fn highlight(file: &SourceFileNode) -> Vec<HighlightedRange> {
+pub fn highlight(root: SyntaxNodeRef) -> Vec<HighlightedRange> {
     // Visited nodes to handle highlighting priorities
     let mut highlighted = FxHashSet::default();
     let mut res = Vec::new();
-    for node in file.syntax().descendants() {
+    for node in root.descendants() {
         if highlighted.contains(&node) {
             continue;
         }
@@ -178,7 +178,7 @@ fn main() {}
     println!("Hello, {}!", 92);
 "#,
         );
-        let hls = highlight(&file);
+        let hls = highlight(file.syntax());
         assert_eq_dbg(
             r#"[HighlightedRange { range: [1; 11), tag: "comment" },
                 HighlightedRange { range: [12; 14), tag: "keyword" },
-- 
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