[ARC] When casting from a pointer to an objective-c object with known ownership, if the
cast type has no ownership specified, implicitly "transfer" the ownership of the cast'ed type
to the cast type:
id x;
static_cast<NSString**>(&x); // Casting as (__strong NSString**).
This currently only works for C++ named casts, C casts to follow.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134273 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseExprCXX.cpp b/lib/Parse/ParseExprCXX.cpp
index 662a5ab..6324992 100644
--- a/lib/Parse/ParseExprCXX.cpp
+++ b/lib/Parse/ParseExprCXX.cpp
@@ -538,7 +538,14 @@
if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName))
return ExprError();
- TypeResult CastTy = ParseTypeName();
+ // Parse the common declaration-specifiers piece.
+ DeclSpec DS(AttrFactory);
+ ParseSpecifierQualifierList(DS);
+
+ // Parse the abstract-declarator, if present.
+ Declarator DeclaratorInfo(DS, Declarator::TypeNameContext);
+ ParseDeclarator(DeclaratorInfo);
+
SourceLocation RAngleBracketLoc = Tok.getLocation();
if (ExpectAndConsume(tok::greater, diag::err_expected_greater))
@@ -554,9 +561,9 @@
// Match the ')'.
RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc);
- if (!Result.isInvalid() && !CastTy.isInvalid())
+ if (!Result.isInvalid() && !DeclaratorInfo.isInvalidType())
Result = Actions.ActOnCXXNamedCast(OpLoc, Kind,
- LAngleBracketLoc, CastTy.get(),
+ LAngleBracketLoc, DeclaratorInfo,
RAngleBracketLoc,
LParenLoc, Result.take(), RParenLoc);