clang/test/PCH/pr18806.cpp

   1 // RUN: %clang_cc1 -std=c++11 -emit-pch -o %t %s
   2 // RUN: %clang_cc1 -std=c++11 -include-pch %t -verify %s
   3
   4 // RUN: %clang_cc1 -std=c++11 -emit-pch -fpch-instantiate-templates -o %t %s
   5 // RUN: %clang_cc1 -std=c++11 -include-pch %t -verify %s
   6
   7 // expected-no-diagnostics
   8
   9 // Before the patch, this test triggered an assert violation in
  10 // ASTContext::getSubstTemplateTypeParmType.
  11
  12 #ifndef HEADER_INCLUDED
  13 #define HEADER_INCLUDED
  14
  15 template <typename T>
  16 using Id = T;
  17
  18 template <typename X>
  19 struct Class1 {
  20   template <typename Y, typename = decltype(Y())>
  21   struct Nested1;
  22 };
  23
  24 template <typename A>
  25 struct Class2 {
  26   template <typename B, typename = Id<decltype(B())>>
  27   struct Nested2;
  28 };
  29
  30 #else
  31
  32 Class2<char> test;
  33
  34 #endif