[Lexer] Ensure that the token is not an annotation token when

retrieving the identifer info for an Objective-C keyword

This commit fixes an assertion that's triggered in getIdentifier when the token
is an annotation token.

rdar://32225463


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@303246 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/Lex/Lexer.cpp b/lib/Lex/Lexer.cpp
index 3d6fe91115..92942fd09a 100644
--- a/lib/Lex/Lexer.cpp
+++ b/lib/Lex/Lexer.cpp
@@ -43,6 +43,8 @@ using namespace clang;
 
 /// isObjCAtKeyword - Return true if we have an ObjC keyword identifier.
 bool Token::isObjCAtKeyword(tok::ObjCKeywordKind objcKey) const {
+  if (isAnnotation())
+    return false;
   if (IdentifierInfo *II = getIdentifierInfo())
     return II->getObjCKeywordID() == objcKey;
   return false;
@@ -50,6 +52,8 @@ bool Token::isObjCAtKeyword(tok::ObjCKeywordKind objcKey) const {
 
 /// getObjCKeywordID - Return the ObjC keyword kind.
 tok::ObjCKeywordKind Token::getObjCKeywordID() const {
+  if (isAnnotation())
+    return tok::objc_not_keyword;
   IdentifierInfo *specId = getIdentifierInfo();
   return specId ? specId->getObjCKeywordID() : tok::objc_not_keyword;
 }