clang/test/Modules/cxx17-exception-spec.cpp

   1 // RUN: %clang_cc1 -fmodules -fmodules-local-submodule-visibility -fno-modules-error-recovery -fno-spell-checking -verify -std=c++17 %s
   2
   3 #pragma clang module build a
   4 module a {}
   5 #pragma clang module contents
   6 #pragma clang module begin a
   7 constexpr bool return_true() { return true; }
   8 struct X {
   9   static void f() noexcept(return_true());
  10 };
  11 #pragma clang module end
  12 #pragma clang module endbuild
  13
  14 #pragma clang module build b
  15 module b {}
  16 #pragma clang module contents
  17 #pragma clang module begin b
  18 #pragma clang module import a
  19 using T = decltype(return_true() && noexcept(X::f()));
  20 #pragma clang module end
  21 #pragma clang module endbuild
  22
  23 #pragma clang module import a
  24 #pragma clang module import b
  25
  26 // Trigger import of return_true and then X::f in the same pass. This causes
  27 // the type of X::f to be loaded while we have a pending body for return_true,
  28 // which means evaluation of its exception specification at that point would
  29 // fail.
  30 T t;
  31
  32 static_assert(noexcept(X().f()));
  33
  34 // expected-no-diagnostics