doc. parsing. HeaderDoc documentaton allows use of

@class command on an @interface declaration. Turn off
the warning for this case. // rdar://13927330

llvm-svn: 182334

2 files changed, 11 insertions, 0 deletions

diff --git a/clang/lib/AST/CommentSema.cpp b/clang/lib/AST/CommentSema.cpp
index e0138d5f3f2..c242eb0f606 100644
--- a/clang/lib/AST/CommentSema.cpp
+++ b/clang/lib/AST/CommentSema.cpp
@@ -132,6 +132,11 @@ void Sema::checkContainerDeclVerbatimLine(const BlockCommandComment *Comment) {
   switch (Comment->getCommandID()) {
     case CommandTraits::KCI_class:
       DiagSelect = !isClassOrStructDecl() ? 1 : 0;
+      // Allow @class command on @interface declarations.
+      // FIXME. Currently, \class and @class are indistinguishable. So,
+      // \class is also allowed on an @interface declaration
+      if (DiagSelect && Comment->getCommandMarker() && isObjCInterfaceDecl())
+        DiagSelect = 0;
       break;
     case CommandTraits::KCI_interface:
       DiagSelect = !isObjCInterfaceDecl() ? 2 : 0;
diff --git a/clang/test/Sema/warn-documentation.m b/clang/test/Sema/warn-documentation.m
index 27204805096..1d3114617eb 100644
--- a/clang/test/Sema/warn-documentation.m
+++ b/clang/test/Sema/warn-documentation.m
@@ -197,3 +197,9 @@ int FooBar();
 {
 }
 @end
+
+// rdar://13927330
+/// @class Asset  <- '@class' may be used in a comment attached to a an interface declaration
+@interface Asset : NSObject
+@end
+