[PATCH] D15643: Don't allow newline after uppercase Obj-C block return types

[Kent Sutherland via cfe-commits]

ksuther created this revision.
ksuther added a reviewer: djasper.
ksuther added a subscriber: cfe-commits.
Herald added a subscriber: klimek.

Fixes the following:

BOOL (^aaa)(void) = ^BOOL {
};

The first BOOL's token was getting set to TT_FunctionAnnotationRParen incorrectly, which was causing an unexpected newline after (^aaa). This was introduced in r245846.

http://reviews.llvm.org/D15643

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

Index: unittests/Format/FormatTest.cpp
===================================================================
--- unittests/Format/FormatTest.cpp
+++ unittests/Format/FormatTest.cpp
@@ -10608,6 +10608,9 @@
                "});");
   verifyFormat("Block b = ^int *(A *a, B *b) {}");
 
+  verifyFormat("BOOL (^aaa)(void) = ^BOOL {\n"
+               "};");
+
   FormatStyle FourIndent = getLLVMStyle();
   FourIndent.ObjCBlockIndentWidth = 4;
   verifyFormat("[operation setCompletionBlock:^{\n"
Index: lib/Format/TokenAnnotator.cpp
===================================================================
--- lib/Format/TokenAnnotator.cpp
+++ lib/Format/TokenAnnotator.cpp
@@ -955,12 +955,17 @@
       if (Current.MatchingParen && Current.Next &&
           !Current.Next->isBinaryOperator() &&
           !Current.Next->isOneOf(tok::semi, tok::colon, tok::l_brace))
-        if (FormatToken *BeforeParen = Current.MatchingParen->Previous)
-          if (BeforeParen->is(tok::identifier) &&
-              BeforeParen->TokenText == BeforeParen->TokenText.upper() &&
-              (!BeforeParen->Previous ||
-               BeforeParen->Previous->ClosesTemplateDeclaration))
-            Current.Type = TT_FunctionAnnotationRParen;
+        if (FormatToken *AfterParen = Current.MatchingParen->Next) {
+          // Make sure this isn't the return type of an Obj-C block declaration
+          if (AfterParen->Tok.isNot(tok::caret)) {
+            if (FormatToken *BeforeParen = Current.MatchingParen->Previous)
+              if (BeforeParen->is(tok::identifier) &&
+                  BeforeParen->TokenText == BeforeParen->TokenText.upper() &&
+                  (!BeforeParen->Previous ||
+                   BeforeParen->Previous->ClosesTemplateDeclaration))
+                Current.Type = TT_FunctionAnnotationRParen;
+          }
+        }
     } else if (Current.is(tok::at) && Current.Next) {
       if (Current.Next->isStringLiteral()) {
         Current.Type = TT_ObjCStringLiteral;


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