clang-format: Support Qt's slot access specifiers.

This fixes llvm.org/PR17241.

llvm-svn: 195555

clang/lib/Format/UnwrappedLineParser.cpp

@@ -1086,6 +1086,9 @@ void UnwrappedLineParser::parseSwitch() {
 
 void UnwrappedLineParser::parseAccessSpecifier() {
   nextToken();
+  // Understand Qt's slots.
+  if (FormatTok->is(tok::identifier) && FormatTok->TokenText == "slots")
+    nextToken();
   // Otherwise, we don't know what it is, and we'd better keep the next token.
   if (FormatTok->Tok.is(tok::colon))
     nextToken();

clang/unittests/Format/FormatTest.cpp

@@ -1537,6 +1537,10 @@ TEST_F(FormatTest, UnderstandsAccessSpecifiers) {
                      " private:\n"
                      "  void f() {}\n"
                      "};");
+  verifyFormat("class A {\n"
+               "public slots:\n"
+               "  void f() {}\n"
+               "};");
 }
 
 TEST_F(FormatTest, SeparatesLogicalBlocks) {