From 6246cc6c0ebbb95eb74ffdbc2004b7d0f83c74da Mon Sep 17 00:00:00 2001
From: Alex Lorenz <arphaman@gmail.com>
Date: Wed, 26 Apr 2017 12:46:27 +0000
Subject: [AST] Look through attribute type locs when searching for function
 type loc

Prior to this commit -Wdocumentation crashed when checking the @returns command
for declarations whose function/block pointer type included an attribute like
_Nullable.

rdar://31818195

llvm-svn: 301400
---
 clang/lib/AST/Comment.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'clang/lib/AST/Comment.cpp')

diff --git a/clang/lib/AST/Comment.cpp b/clang/lib/AST/Comment.cpp
index 20ff2430df2..dfa2a1665d4 100644
--- a/clang/lib/AST/Comment.cpp
+++ b/clang/lib/AST/Comment.cpp
@@ -116,6 +116,9 @@ bool ParagraphComment::isWhitespaceNoCache() const {
 static TypeLoc lookThroughTypedefOrTypeAliasLocs(TypeLoc &SrcTL) {
   TypeLoc TL = SrcTL.IgnoreParens();
 
+  // Look through attribute types.
+  if (AttributedTypeLoc AttributeTL = TL.getAs<AttributedTypeLoc>())
+    return AttributeTL.getModifiedLoc();
   // Look through qualified types.
   if (QualifiedTypeLoc QualifiedTL = TL.getAs<QualifiedTypeLoc>())
     return QualifiedTL.getUnqualifiedLoc();
-- 
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