1 // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++14 2 3 namespace access_control { 4 class Private { 5 void check(int *) __attribute__((enable_if(false, ""))); 6 void check(double *) __attribute__((enable_if(true, ""))); 7 8 static void checkStatic(int *) __attribute__((enable_if(false, ""))); 9 static void checkStatic(double *) __attribute__((enable_if(true, ""))); 10 }; 11 12 auto Priv = reinterpret_cast<void (Private::*)(char *)>(&Private::check); // expected-error{{'check' is a private member of 'access_control::Private'}} expected-note@6{{implicitly declared private here}} 13 14 auto PrivStatic = reinterpret_cast<void (*)(char *)>(&Private::checkStatic); // expected-error{{'checkStatic' is a private member of 'access_control::Private'}} expected-note@9{{implicitly declared private here}} 15 16 class Protected { 17 protected: 18 void check(int *) __attribute__((enable_if(false, ""))); 19 void check(double *) __attribute__((enable_if(true, ""))); 20 21 static void checkStatic(int *) __attribute__((enable_if(false, ""))); 22 static void checkStatic(double *) __attribute__((enable_if(true, ""))); 23 }; 24 25 auto Prot = reinterpret_cast<void (Protected::*)(char *)>(&Protected::check); // expected-error{{'check' is a protected member of 'access_control::Protected'}} expected-note@19{{declared protected here}} 26 27 auto ProtStatic = reinterpret_cast<void (*)(char *)>(&Protected::checkStatic); // expected-error{{'checkStatic' is a protected member of 'access_control::Protected'}} expected-note@22{{declared protected here}} 28 } 29 30 namespace unavailable { 31 // Ensure that we check that the function can be called 32 void foo() __attribute__((unavailable("don't call this"))); 33 void foo(int) __attribute__((enable_if(false, ""))); 34 35 void *Ptr = reinterpret_cast<void*>(foo); // expected-error{{'foo' is unavailable: don't call this}} expected-note@-3{{explicitly marked unavailable here}} 36 } 37 38 namespace template_deduction { 39 void foo() __attribute__((enable_if(false, ""))); 40 41 void bar() __attribute__((enable_if(true, ""))); 42 void bar() __attribute__((enable_if(false, ""))); 43 44 void baz(int a) __attribute__((enable_if(true, ""))); 45 void baz(int a) __attribute__((enable_if(a, ""))); 46 void baz(int a) __attribute__((enable_if(false, ""))); 47 48 void qux(int a) __attribute__((enable_if(1, ""))); 49 void qux(int a) __attribute__((enable_if(true, ""))); 50 void qux(int a) __attribute__((enable_if(a, ""))); 51 void qux(int a) __attribute__((enable_if(false, ""))); 52 53 template <typename Fn, typename... Args> void call(Fn F, Args... As) { 54 F(As...); 55 } 56 57 void test() { 58 call(foo); // expected-error{{cannot take address of function 'foo'}} 59 call(bar); 60 call(baz, 0); 61 call(qux, 0); // expected-error{{no matching function for call to 'call'}} expected-note@53{{candidate template ignored: couldn't infer template argument 'Fn'}} 62 63 auto Ptr1 = foo; // expected-error{{cannot take address of function 'foo'}} 64 auto Ptr2 = bar; 65 auto Ptr3 = baz; 66 auto Ptr4 = qux; // expected-error{{variable 'Ptr4' with type 'auto' has incompatible initializer of type '<overloaded function type>'}} 67 } 68 69 template <typename Fn, typename T, typename... Args> 70 void callMem(Fn F, T t, Args... As) { 71 (t.*F)(As...); 72 } 73 74 class Foo { 75 void bar() __attribute__((enable_if(true, ""))); 76 void bar() __attribute__((enable_if(false, ""))); 77 78 static void staticBar() __attribute__((enable_if(true, ""))); 79 static void staticBar() __attribute__((enable_if(false, ""))); 80 }; 81 82 void testAccess() { 83 callMem(&Foo::bar, Foo()); // expected-error{{'bar' is a private member of 'template_deduction::Foo'}} expected-note@-8{{implicitly declared private here}} 84 call(&Foo::staticBar); // expected-error{{'staticBar' is a private member of 'template_deduction::Foo'}} expected-note@-6{{implicitly declared private here}} 85 } 86 } 87 88 namespace template_template_deduction { 89 void foo() __attribute__((enable_if(false, ""))); 90 template <typename T> 91 T foo() __attribute__((enable_if(true, ""))); 92 93 template <typename Fn, typename... Args> auto call(Fn F, Args... As) { 94 return F(As...); 95 } 96 97 auto Ok = call(&foo<int>); 98 auto Fail = call(&foo); // expected-error{{no matching function for call to 'call'}} expected-note@-5{{candidate template ignored: couldn't infer template argument 'Fn'}} 99 100 auto PtrOk = &foo<int>; 101 auto PtrFail = &foo; // expected-error{{variable 'PtrFail' with type 'auto' has incompatible initializer of type '<overloaded function type>'}} 102 } 103 104 namespace pointer_equality { 105 using FnTy = void (*)(); 106 107 void bothEnableIf() __attribute__((enable_if(false, ""))); 108 void bothEnableIf() __attribute__((enable_if(true, ""))); 109 110 void oneEnableIf() __attribute__((enable_if(false, ""))); 111 void oneEnableIf(); 112 113 void test() { 114 FnTy Fn; 115 (void)(Fn == bothEnableIf); 116 (void)(Fn == &bothEnableIf); 117 (void)(Fn == oneEnableIf); 118 (void)(Fn == &oneEnableIf); 119 } 120 121 void unavailableEnableIf() __attribute__((enable_if(false, ""))); 122 void unavailableEnableIf() __attribute__((unavailable("noooo"))); // expected-note 2{{marked unavailable here}} 123 124 void testUnavailable() { 125 FnTy Fn; 126 (void)(Fn == unavailableEnableIf); // expected-error{{is unavailable}} 127 (void)(Fn == &unavailableEnableIf); // expected-error{{is unavailable}} 128 } 129 130 class Foo { 131 static void staticAccessEnableIf(); // expected-note 2{{declared private here}} 132 void accessEnableIf(); // expected-note{{declared private here}} 133 134 public: 135 static void staticAccessEnableIf() __attribute__((enable_if(false, ""))); 136 void accessEnableIf() __attribute__((enable_if(false, ""))); 137 }; 138 139 void testAccess() { 140 FnTy Fn; 141 (void)(Fn == Foo::staticAccessEnableIf); // expected-error{{is a private member}} 142 (void)(Fn == &Foo::staticAccessEnableIf); // expected-error{{is a private member}} 143 144 void (Foo::*MemFn)(); 145 (void)(MemFn == &Foo::accessEnableIf); // expected-error{{is a private member}} 146 } 147 } 148
