From a4ea08420cde12ea0943cafb1505e512c5820f70 Mon Sep 17 00:00:00 2001
From: Manish Goregaokar <manishsmail@gmail.com>
Date: Fri, 8 Mar 2019 21:12:12 -0800
Subject: [PATCH] Avoid some common false positives in intra doc link checking

---
 src/librustdoc/passes/collect_intra_doc_links.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/librustdoc/passes/collect_intra_doc_links.rs b/src/librustdoc/passes/collect_intra_doc_links.rs
index c346714ab485a..c3d2e63319a95 100644
--- a/src/librustdoc/passes/collect_intra_doc_links.rs
+++ b/src/librustdoc/passes/collect_intra_doc_links.rs
@@ -291,6 +291,12 @@ impl<'a, 'tcx, 'rcx> DocFolder for LinkCollector<'a, 'tcx, 'rcx> {
             if ori_link.contains('/') {
                 continue;
             }
+
+            // [] is mostly likely not supposed to be a link
+            if ori_link.is_empty() {
+                continue;
+            }
+
             let link = ori_link.replace("`", "");
             let (def, fragment) = {
                 let mut kind = PathKind::Unknown;