From ac67414618df9fdc24754b05cf438f8f7568f04a Mon Sep 17 00:00:00 2001
From: Owen Pan <owenpiano@gmail.com>
Date: Fri, 16 Aug 2019 21:49:17 +0000
Subject: [PATCH] [clang-format] Fix the bug that joins template closer and >
 or >>

Also fixes a buggy test case.

See PR42404

Differential Revision: https://reviews.llvm.org/D66332

llvm-svn: 369157
---
 clang/lib/Format/TokenAnnotator.cpp   | 2 ++
 clang/unittests/Format/FormatTest.cpp | 5 ++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index c0533bbcbdca..62f7130dc899 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -919,6 +919,8 @@ private:
     case tok::greater:
       if (Style.Language != FormatStyle::LK_TextProto)
         Tok->Type = TT_BinaryOperator;
+      if (Tok->Previous && Tok->Previous->is(TT_TemplateCloser))
+        Tok->SpacesRequiredBefore = 1;
       break;
     case tok::kw_operator:
       if (Style.Language == FormatStyle::LK_TextProto ||
diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index 3fe75ec233c9..0aeecc0e1221 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -6618,7 +6618,10 @@ TEST_F(FormatTest, UnderstandsTemplateParameters) {
   EXPECT_EQ("auto x = [] { A<A<A<A>>> a; };",
             format("auto x=[]{A<A<A<A> >> a;};", getGoogleStyle()));
 
-  verifyFormat("A<A>> a;", getChromiumStyle(FormatStyle::LK_Cpp));
+  verifyFormat("A<A<int>> a;", getChromiumStyle(FormatStyle::LK_Cpp));
+
+  verifyFormat("int i = a<1> >> 1;");
+  verifyFormat("bool b = a<1> > 1;");
 
   verifyFormat("test >> a >> b;");
   verifyFormat("test << a >> b;");