---

yaml
---
r: 189224
b: refs/heads/master
c: 4a6fb45
h: refs/heads/master
v: v3

Author: lifthrasiir

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 9e28156551c1a2af3c47a0937290176ccc457703
+refs/heads/master: 4a6fb45ee1c51a67d75d99244446868b36f22cc6
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 270a677d4d698916f5ad103f0afc3c070b8dbeb4
 refs/heads/try: 649d35e4d830b27806705dc5352c86ab6d6fd1a1

trunk/src/librustdoc/html/render.rs

@@ -2209,7 +2209,14 @@ impl<'a> fmt::Display for Sidebar<'a> {
         let it = self.item;
         let parentlen = cx.current.len() - if it.is_mod() {1} else {0};
 
-        // this is not rendered via JS, as that would hamper the accessibility
+        // the sidebar is designed to display sibling functions, modules and
+        // other miscellaneous informations. since there are lots of sibling
+        // items (and that causes quadratic growth in large modules),
+        // we refactor common parts into a shared JavaScript file per module.
+        // still, we don't move everything into JS because we want to preserve
+        // as much HTML as possible in order to allow non-JS-enabled browsers
+        // to navigate the documentation (though slightly inefficiently).
+
         try!(write!(fmt, "<p class='location'>"));
         for (i, name) in cx.current.iter().take(parentlen).enumerate() {
             if i > 0 {