[PATCH] Support for pointers-to-members usage via .*

[Alexander Kornienko]

Hi djasper,

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

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

Files:
  lib/Format/TokenAnnotator.cpp
  unittests/Format/FormatTest.cpp

Index: lib/Format/TokenAnnotator.cpp
===================================================================
--- lib/Format/TokenAnnotator.cpp
+++ lib/Format/TokenAnnotator.cpp
@@ -1058,7 +1058,8 @@
   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 @@
            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;
Index: unittests/Format/FormatTest.cpp
===================================================================
--- unittests/Format/FormatTest.cpp
+++ unittests/Format/FormatTest.cpp
@@ -2000,7 +2000,18 @@
 
 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) {

Index: lib/Format/TokenAnnotator.cpp
===================================================================
--- lib/Format/TokenAnnotator.cpp
+++ lib/Format/TokenAnnotator.cpp
@@ -1058,7 +1058,8 @@
   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 @@
            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;
Index: unittests/Format/FormatTest.cpp
===================================================================
--- unittests/Format/FormatTest.cpp
+++ unittests/Format/FormatTest.cpp
@@ -2000,7 +2000,18 @@
 
 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) {

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