test/SemaCXX/no_destroy.cpp

   1 // RUN: %clang_cc1 -DNO_DTORS -fno-c++-static-destructors -verify %s
   2 // RUN: %clang_cc1 -verify %s
   3
   4 struct SecretDestructor {
   5 #ifndef NO_DTORS
   6   // expected-note@+2 4 {{private}}
   7 #endif
   8 private: ~SecretDestructor(); // expected-note 2 {{private}}
   9 };
  10
  11 SecretDestructor sd1;
  12 thread_local SecretDestructor sd2;
  13 void locals() {
  14   static SecretDestructor sd3;
  15   thread_local SecretDestructor sd4;
  16 }
  17
  18 #ifndef NO_DTORS
  19 // SecretDestructor sd1;                  // expected-error@-8 {{private}}
  20 // thread_local SecretDestructor sd2;     // expected-error@-8 {{private}}
  21 // void locals() {
  22 //   static SecretDestructor sd3;         // expected-error@-8 {{private}}
  23 //   thread_local SecretDestructor sd4;   // expected-error@-8 {{private}}
  24 // }
  25 #endif
  26
  27 [[clang::always_destroy]] SecretDestructor sd6; // expected-error{{private}}
  28 [[clang::always_destroy]] thread_local SecretDestructor sd7; // expected-error{{private}}
  29
  30 [[clang::no_destroy]] SecretDestructor sd8;
  31
  32 int main() {
  33   [[clang::no_destroy]] int p; // expected-error{{no_destroy attribute can only be applied to a variable with static or thread storage duration}}
  34   [[clang::always_destroy]] int p2; // expected-error{{always_destroy attribute can only be applied to a variable with static or thread storage duration}}
  35   [[clang::no_destroy]] static int p3;
  36   [[clang::always_destroy]] static int p4;
  37 }
  38
  39 [[clang::always_destroy]] [[clang::no_destroy]] int p; // expected-error{{'no_destroy' and 'always_destroy' attributes are not compatible}} // expected-note{{here}}
  40 [[clang::no_destroy]] [[clang::always_destroy]] int p2; // expected-error{{'always_destroy' and 'no_destroy' attributes are not compatible}} // expected-note{{here}}
  41
  42 [[clang::always_destroy]] void f() {} // expected-warning{{'always_destroy' attribute only applies to variables}}
  43 struct [[clang::no_destroy]] DoesntApply {};  // expected-warning{{'no_destroy' attribute only applies to variables}}
  44
  45 [[clang::no_destroy(0)]] int no_args; // expected-error{{'no_destroy' attribute takes no arguments}}
  46 [[clang::always_destroy(0)]] int no_args2; // expected-error{{'always_destroy' attribute takes no arguments}}