Improve recovery when we fail to parse the operand of a C++ named cast. Fixes PR5210

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86234 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 12 insertions, 7 deletions

diff --git a/lib/Parse/ParseExprCXX.cpp b/lib/Parse/ParseExprCXX.cpp
index a00dfb0b4c..fa8e64dc12 100644
--- a/lib/Parse/ParseExprCXX.cpp
+++ b/lib/Parse/ParseExprCXX.cpp
@@ -381,13 +381,7 @@ Parser::OwningExprResult Parser::ParseCXXCasts() {
   OwningExprResult Result = ParseExpression();
 
   // Match the ')'.
-  if (Result.isInvalid())
-    SkipUntil(tok::r_paren);
-
-  if (Tok.is(tok::r_paren))
-    RParenLoc = ConsumeParen();
-  else
-    MatchRHSPunctuation(tok::r_paren, LParenLoc);
+  RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc);
 
   if (!Result.isInvalid() && !CastTy.isInvalid())
     Result = Actions.ActOnCXXNamedCast(OpLoc, Kind,
diff --git a/test/SemaCXX/cast-conversion.cpp b/test/SemaCXX/cast-conversion.cpp
index 936933d95d..3b6a9d6f8c 100644
--- a/test/SemaCXX/cast-conversion.cpp
+++ b/test/SemaCXX/cast-conversion.cpp
@@ -33,3 +33,14 @@ void test_X0() {
   const char array[2];
   make_X0(array);
 }
+
+// PR5210 recovery
+class C {
+protected:
+  template <int> float* &f0(); // expected-note{{candidate}}
+  template <unsigned> float* &f0(); // expected-note{{candidate}}
+
+  void f1() {
+    static_cast<float*>(f0<0>()); // expected-error{{ambiguous}}
+  }
+};