Add clang support for new Objective-C literal syntax for NSDictionary, NSArray,

NSNumber, and boolean literals.  This includes both Sema and Codegen support.
Included is also support for new Objective-C container subscripting.

My apologies for the large patch.  It was very difficult to break apart.
The patch introduces changes to the driver as well to cause clang to link
in additional runtime support when needed to support the new language features.

Docs are forthcoming to document the implementation and behavior of these features.

llvm-svn: 152137

1 files changed, 13 insertions, 0 deletions

diff --git a/clang/lib/Parse/ParseExpr.cpp b/clang/lib/Parse/ParseExpr.cpp
index 21a2e573c7e..a1c3b050301 100644
--- a/clang/lib/Parse/ParseExpr.cpp
+++ b/clang/lib/Parse/ParseExpr.cpp
@@ -707,6 +707,10 @@ ExprResult Parser::ParseCastExpression(bool isUnaryExpression,
   case tok::kw_true:
   case tok::kw_false:
     return ParseCXXBoolLiteral();
+  
+  case tok::kw___objc_yes:
+  case tok::kw___objc_no:
+      return ParseObjCBoolLiteral();
 
   case tok::kw_nullptr:
     Diag(Tok, diag::warn_cxx98_compat_nullptr);
@@ -2403,3 +2407,12 @@ ExprResult Parser::ParseBlockLiteralExpression() {
     Actions.ActOnBlockError(CaretLoc, getCurScope());
   return move(Result);
 }
+
+/// ParseObjCBoolLiteral - This handles the objective-c Boolean literals.
+///
+///         '__objc_yes'
+///         '__objc_no'
+ExprResult Parser::ParseObjCBoolLiteral() {
+  tok::TokenKind Kind = Tok.getKind();
+  return Actions.ActOnObjCBoolLiteral(ConsumeToken(), Kind);
+}