From 54a38bd5cf243310290f34b43fc940a498a00f90 Mon Sep 17 00:00:00 2001
From: Alexander Kornienko <alexfh@google.com>
Date: Wed, 20 Mar 2013 16:41:56 +0000
Subject: [PATCH] Support for pointers-to-members usage via .*

Summary: Added support for pointers-to-members usage via .* and a few tests.

Reviewers: djasper

Reviewed By: djasper

CC: cfe-commits, klimek

Differential Revision: http://llvm-reviews.chandlerc.com/D556

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177537 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Format/TokenAnnotator.cpp   |  6 ++++--
 unittests/Format/FormatTest.cpp | 13 ++++++++++++-
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/lib/Format/TokenAnnotator.cpp b/lib/Format/TokenAnnotator.cpp
index 7c4797978f..3578162c3f 100644
--- a/lib/Format/TokenAnnotator.cpp
+++ b/lib/Format/TokenAnnotator.cpp
@@ -1058,7 +1058,8 @@ bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line,
   if (Tok.is(tok::l_paren) && !Tok.Children.empty() &&
       Tok.Children[0].Type == TT_PointerOrReference &&
       !Tok.Children[0].Children.empty() &&
-      Tok.Children[0].Children[0].isNot(tok::r_paren))
+      Tok.Children[0].Children[0].isNot(tok::r_paren) &&
+      Tok.Parent->isNot(tok::l_paren))
     return true;
   if (Tok.Parent->Type == TT_UnaryOperator || Tok.Parent->Type == TT_CastRParen)
     return false;
@@ -1071,7 +1072,8 @@ bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line,
            Tok.Parent->Type == TT_TemplateCloser &&
            Style.Standard != FormatStyle::LS_Cpp11;
   }
-  if (Tok.is(tok::arrowstar) || Tok.Parent->is(tok::arrowstar))
+  if (Tok.isOneOf(tok::arrowstar, tok::periodstar) ||
+      Tok.Parent->isOneOf(tok::arrowstar, tok::periodstar))
     return false;
   if (Tok.Type == TT_BinaryOperator || Tok.Parent->Type == TT_BinaryOperator)
     return true;
diff --git a/unittests/Format/FormatTest.cpp b/unittests/Format/FormatTest.cpp
index 0edb19166d..4caffd911b 100644
--- a/unittests/Format/FormatTest.cpp
+++ b/unittests/Format/FormatTest.cpp
@@ -2000,7 +2000,18 @@ TEST_F(FormatTest, UnderstandsTemplateParameters) {
 
 TEST_F(FormatTest, UnderstandsBinaryOperators) {
   verifyFormat("COMPARE(a, ==, b);");
-  verifyFormat("(a->*f)()");
+}
+
+TEST_F(FormatTest, UnderstandsPointersToMembers) {
+  verifyFormat("int A::*x;");
+  // FIXME: Recognize pointers to member functions.
+  //verifyFormat("int (S::*func)(void *);");
+  verifyFormat("int(S::*func)(void *);");
+  verifyFormat("(a->*f)();");
+  verifyFormat("a->*x;");
+  verifyFormat("(a.*f)();");
+  verifyFormat("((*a).*f)();");
+  verifyFormat("a.*x;");
 }
 
 TEST_F(FormatTest, UnderstandsUnaryOperators) {