Don't require nullability on template parameters in typedefs.

Previously the following code would warn on the use of "T":

  template <typename T>
  struct X {
    typedef T *type;
  };

...because nullability is /allowed/ on template parameters (because
they could be pointers). (Actually putting nullability on this use of
'T' will of course break if the argument is a non-pointer type.)

This fix doesn't handle the case where a template parameter is used
/outside/ of a typedef. That seems trickier, especially in parameter
position.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@285856 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/test/SemaObjCXX/Inputs/nullability-consistency-1.h b/test/SemaObjCXX/Inputs/nullability-consistency-1.h
index 6ab48fe0cd..a99f091e0f 100644
--- a/test/SemaObjCXX/Inputs/nullability-consistency-1.h
+++ b/test/SemaObjCXX/Inputs/nullability-consistency-1.h
@@ -13,5 +13,13 @@ class X {
   int X:: *memptr; // expected-warning{{member pointer is missing a nullability type specifier}}
 };
 
+template <typename T>
+struct Typedefs {
+  typedef T *Base; // no-warning
+  typedef Base *type; // expected-warning{{pointer is missing a nullability type specifier}}
+};
+
+Typedefs<int> xx;
+Typedefs<void *> yy;