Revert most of r172140.

r172140 changed the formatter to produce "-(id) foo" instead of "- (id)foo"
in google style, with a link to
http://google-styleguide.googlecode.com/svn/trunk/objcguide.xml#Method_Declarations_and_Definitions
as reference.  But now that I look at that link again, it seems I didn't
read it very carefully the first time round.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172703 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Format/Format.h

@@ -71,10 +71,6 @@ struct FormatStyle {
   /// \brief Add a space in front of an Objective-C protocol list, i.e. use
   /// Foo <Protocol> instead of Foo<Protocol>.
   bool ObjCSpaceBeforeProtocolList;
-
-  /// \brief Add a space in front method return types, i.e. use
-  /// + (id)init instead of +(id) init
-  bool ObjCSpaceBeforeReturnType;
 };
 
 /// \brief Returns a format style complying with the LLVM coding standards:

lib/Format/Format.cpp

@@ -46,7 +46,6 @@ enum TokenType {
   TT_ObjCDecl,
   TT_ObjCMethodSpecifier,
   TT_ObjCMethodExpr,
-  TT_ObjCSelectorStart,
   TT_ObjCProperty,
   TT_OverloadedOperator,
   TT_PointerOrReference,
@@ -152,7 +151,6 @@ FormatStyle getLLVMStyle() {
   LLVMStyle.ConstructorInitializerAllOnOneLineOrOnePerLine = false;
   LLVMStyle.AllowShortIfStatementsOnASingleLine = false;
   LLVMStyle.ObjCSpaceBeforeProtocolList = true;
-  LLVMStyle.ObjCSpaceBeforeReturnType = true;
   return LLVMStyle;
 }
 
@@ -169,7 +167,6 @@ FormatStyle getGoogleStyle() {
   GoogleStyle.ConstructorInitializerAllOnOneLineOrOnePerLine = true;
   GoogleStyle.AllowShortIfStatementsOnASingleLine = false;
   GoogleStyle.ObjCSpaceBeforeProtocolList = false;
-  GoogleStyle.ObjCSpaceBeforeReturnType = false;
   return GoogleStyle;
 }
 
@@ -892,14 +889,8 @@ public:
           Tok->Type = TT_ObjCMethodExpr;
         break;
       case tok::l_paren: {
-        bool ParensWereObjCReturnType = Tok->Parent && Tok->Parent->Type ==
-                                        TT_ObjCMethodSpecifier;
         if (!parseParens())
           return false;
-        if (CurrentToken != NULL && ParensWereObjCReturnType) {
-          CurrentToken->Type = TT_ObjCSelectorStart;
-          next();
-        }
       } break;
       case tok::l_square:
         if (!parseSquare())
@@ -1308,9 +1299,7 @@ private:
       if (Tok.is(tok::colon))
         return false;
       if (Tok.Parent->Type == TT_ObjCMethodSpecifier)
-        return Style.ObjCSpaceBeforeReturnType || Tok.isNot(tok::l_paren);
-      if (Tok.Type == TT_ObjCSelectorStart)
-        return !Style.ObjCSpaceBeforeReturnType;
+        return true;
       if (Tok.Parent->is(tok::r_paren) && Tok.is(tok::identifier))
         // Don't space between ')' and <id>
         return false;

unittests/Format/FormatTest.cpp

@@ -1473,13 +1473,13 @@ TEST_F(FormatTest, FormatForObjectiveCMethodDecls) {
           "outRange8:(NSRange) out_range8  outRange9:(NSRange) out_range9;"));
 
   verifyFormat("- (int)sum:(vector<int>)numbers;");
-  verifyGoogleFormat("-(void) setDelegate:(id<Protocol>)delegate;");
+  verifyGoogleFormat("- (void)setDelegate:(id<Protocol>)delegate;");
   // FIXME: In LLVM style, there should be a space in front of a '<' for ObjC
   // protocol lists (but not for template classes):
   //verifyFormat("- (void)setDelegate:(id <Protocol>)delegate;");
 
   verifyFormat("- (int(*)())foo:(int(*)())f;");
-  verifyGoogleFormat("-(int(*)()) foo:(int(*)())foo;");
+  verifyGoogleFormat("- (int(*)())foo:(int(*)())foo;");
 
   // If there's no return type (very rare in practice!), LLVM and Google style
   // agree.
@@ -1517,7 +1517,7 @@ TEST_F(FormatTest, FormatObjCInterface) {
                      " @package\n"
                      "  int field4;\n"
                      "}\n"
-                     "+(id) init;\n"
+                     "+ (id)init;\n"
                      "@end");
 
   verifyFormat("@interface Foo\n"
@@ -1540,7 +1540,7 @@ TEST_F(FormatTest, FormatObjCInterface) {
                "@end");
 
   verifyGoogleFormat("@interface Foo : Bar<Baz, Quux>\n"
-                     "+(id) init;\n"
+                     "+ (id)init;\n"
                      "@end");
 
   verifyFormat("@interface Foo (HackStuff)\n"
@@ -1556,7 +1556,7 @@ TEST_F(FormatTest, FormatObjCInterface) {
                "@end");
 
   verifyGoogleFormat("@interface Foo (HackStuff)<MyProtocol>\n"
-                     "+(id) init;\n"
+                     "+ (id)init;\n"
                      "@end");
 
   verifyFormat("@interface Foo {\n"
@@ -1620,7 +1620,7 @@ TEST_F(FormatTest, FormatObjCImplementation) {
                      " @package\n"
                      "  int field4;\n"
                      "}\n"
-                     "+(id) init {}\n"
+                     "+ (id)init {}\n"
                      "@end");
 
   verifyFormat("@implementation Foo\n"
@@ -1675,7 +1675,7 @@ TEST_F(FormatTest, FormatObjCProtocol) {
                "@end");
 
   verifyGoogleFormat("@protocol MyProtocol<NSObject>\n"
-                     "-(NSUInteger) numberOfThings;\n"
+                     "- (NSUInteger)numberOfThings;\n"
                      "@end");
 
   verifyFormat("@protocol Foo;\n"