From bf7a0f43d0e5bd9875f56013edba2e9ce6c40e33 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Sat, 26 Jan 2019 16:26:30 +0300
Subject: minor cleanups

---
 crates/ra_ide_api_light/src/folding_ranges.rs | 27 +++++----------------------
 1 file changed, 5 insertions(+), 22 deletions(-)

diff --git a/crates/ra_ide_api_light/src/folding_ranges.rs b/crates/ra_ide_api_light/src/folding_ranges.rs
index 87feb9bd8..c73637323 100644
--- a/crates/ra_ide_api_light/src/folding_ranges.rs
+++ b/crates/ra_ide_api_light/src/folding_ranges.rs
@@ -1,8 +1,9 @@
 use rustc_hash::FxHashSet;
 
 use ra_syntax::{
-    ast, AstNode, Direction, SourceFile, SyntaxNode, TextRange,
+    AstNode, Direction, SourceFile, SyntaxNode, TextRange,
     SyntaxKind::{self, *},
+    ast::{self, VisibilityOwner},
 };
 
 #[derive(Debug, PartialEq, Eq)]
@@ -28,7 +29,7 @@ pub fn folding_ranges(file: &SourceFile) -> Vec<Fold> {
     for node in file.syntax().descendants() {
         // Fold items that span multiple lines
         if let Some(kind) = fold_kind(node.kind()) {
-            if has_newline(node) {
+            if node.text().contains('\n') {
                 res.push(Fold {
                     range: node.range(),
                     kind,
@@ -83,27 +84,9 @@ fn fold_kind(kind: SyntaxKind) -> Option<FoldKind> {
 }
 
 fn has_visibility(node: &SyntaxNode) -> bool {
-    use ast::VisibilityOwner;
-
-    return ast::Module::cast(node)
+    ast::Module::cast(node)
         .and_then(|m| m.visibility())
-        .is_some();
-}
-
-fn has_newline(node: &SyntaxNode) -> bool {
-    for descendant in node.descendants() {
-        if let Some(ws) = ast::Whitespace::cast(descendant) {
-            if ws.has_newlines() {
-                return true;
-            }
-        } else if let Some(comment) = ast::Comment::cast(descendant) {
-            if comment.has_newlines() {
-                return true;
-            }
-        }
-    }
-
-    false
+        .is_some()
 }
 
 fn contiguous_range_for_group<'a>(
-- 
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