148 lines
		
	
	
		
			5.7 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			148 lines
		
	
	
		
			5.7 KiB
		
	
	
	
		
			C++
		
	
	
	
| // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++14
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| 
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| namespace access_control {
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| class Private {
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|   void check(int *) __attribute__((enable_if(false, "")));
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|   void check(double *) __attribute__((enable_if(true, "")));
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| 
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|   static void checkStatic(int *) __attribute__((enable_if(false, "")));
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|   static void checkStatic(double *) __attribute__((enable_if(true, "")));
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| };
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| 
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| 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}}
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| 
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| 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}}
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| 
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| class Protected {
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| protected:
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|   void check(int *) __attribute__((enable_if(false, "")));
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|   void check(double *) __attribute__((enable_if(true, "")));
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| 
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|   static void checkStatic(int *) __attribute__((enable_if(false, "")));
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|   static void checkStatic(double *) __attribute__((enable_if(true, "")));
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| };
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| 
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| 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}}
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| 
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| 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}}
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| }
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| 
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| namespace unavailable {
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| // Ensure that we check that the function can be called
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| void foo() __attribute__((unavailable("don't call this")));
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| void foo(int) __attribute__((enable_if(false, "")));
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| 
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| void *Ptr = reinterpret_cast<void*>(foo); // expected-error{{'foo' is unavailable: don't call this}} expected-note@-3{{explicitly marked unavailable here}}
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| }
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| 
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| namespace template_deduction {
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| void foo() __attribute__((enable_if(false, "")));
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| 
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| void bar() __attribute__((enable_if(true, "")));
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| void bar() __attribute__((enable_if(false, "")));
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| 
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| void baz(int a) __attribute__((enable_if(true, "")));
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| void baz(int a) __attribute__((enable_if(a, "")));
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| void baz(int a) __attribute__((enable_if(false, "")));
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| 
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| void qux(int a) __attribute__((enable_if(1, "")));
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| void qux(int a) __attribute__((enable_if(true, "")));
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| void qux(int a) __attribute__((enable_if(a, "")));
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| void qux(int a) __attribute__((enable_if(false, "")));
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| 
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| template <typename Fn, typename... Args> void call(Fn F, Args... As) {
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|   F(As...);
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| }
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| 
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| void test() {
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|   call(foo); // expected-error{{cannot take address of function 'foo'}}
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|   call(bar);
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|   call(baz, 0);
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|   call(qux, 0); // expected-error{{no matching function for call to 'call'}} expected-note@53{{candidate template ignored: couldn't infer template argument 'Fn'}}
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| 
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|   auto Ptr1 = foo; // expected-error{{cannot take address of function 'foo'}}
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|   auto Ptr2 = bar;
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|   auto Ptr3 = baz;
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|   auto Ptr4 = qux; // expected-error{{variable 'Ptr4' with type 'auto' has incompatible initializer of type '<overloaded function type>'}}
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| }
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| 
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| template <typename Fn, typename T, typename... Args>
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| void callMem(Fn F, T t, Args... As) {
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|   (t.*F)(As...);
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| }
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| 
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| class Foo {
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|   void bar() __attribute__((enable_if(true, "")));
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|   void bar() __attribute__((enable_if(false, "")));
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| 
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|   static void staticBar() __attribute__((enable_if(true, "")));
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|   static void staticBar() __attribute__((enable_if(false, "")));
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| };
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| 
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| void testAccess() {
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|   callMem(&Foo::bar, Foo()); // expected-error{{'bar' is a private member of 'template_deduction::Foo'}} expected-note@-8{{implicitly declared private here}}
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|   call(&Foo::staticBar); // expected-error{{'staticBar' is a private member of 'template_deduction::Foo'}} expected-note@-6{{implicitly declared private here}}
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| }
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| }
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| 
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| namespace template_template_deduction {
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| void foo() __attribute__((enable_if(false, "")));
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| template <typename T>
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| T foo() __attribute__((enable_if(true, "")));
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| 
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| template <typename Fn, typename... Args> auto call(Fn F, Args... As) {
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|   return F(As...);
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| }
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| 
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| auto Ok = call(&foo<int>);
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| 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'}}
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| 
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| auto PtrOk = &foo<int>;
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| auto PtrFail = &foo; // expected-error{{variable 'PtrFail' with type 'auto' has incompatible initializer of type '<overloaded function type>'}}
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| }
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| 
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| namespace pointer_equality {
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|   using FnTy = void (*)();
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| 
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|   void bothEnableIf() __attribute__((enable_if(false, "")));
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|   void bothEnableIf() __attribute__((enable_if(true, "")));
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| 
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|   void oneEnableIf() __attribute__((enable_if(false, "")));
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|   void oneEnableIf();
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| 
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|   void test() {
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|     FnTy Fn;
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|     (void)(Fn == bothEnableIf);
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|     (void)(Fn == &bothEnableIf);
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|     (void)(Fn == oneEnableIf);
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|     (void)(Fn == &oneEnableIf);
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|   }
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| 
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|   void unavailableEnableIf() __attribute__((enable_if(false, "")));
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|   void unavailableEnableIf() __attribute__((unavailable("noooo"))); // expected-note 2{{marked unavailable here}}
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| 
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|   void testUnavailable() {
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|     FnTy Fn;
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|     (void)(Fn == unavailableEnableIf); // expected-error{{is unavailable}}
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|     (void)(Fn == &unavailableEnableIf); // expected-error{{is unavailable}}
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|   }
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| 
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|   class Foo {
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|     static void staticAccessEnableIf(); // expected-note 2{{declared private here}}
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|     void accessEnableIf(); // expected-note{{declared private here}}
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| 
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|   public:
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|     static void staticAccessEnableIf() __attribute__((enable_if(false, "")));
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|     void accessEnableIf() __attribute__((enable_if(false, "")));
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|   };
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| 
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|   void testAccess() {
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|     FnTy Fn;
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|     (void)(Fn == Foo::staticAccessEnableIf); // expected-error{{is a private member}}
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|     (void)(Fn == &Foo::staticAccessEnableIf); // expected-error{{is a private member}}
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| 
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|     void (Foo::*MemFn)();
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|     (void)(MemFn == &Foo::accessEnableIf); // expected-error{{is a private member}}
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|   }
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| }
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