// RUN: %clang_cc1 -triple i686-win32 -fsyntax-only -fms-extensions -verify -std=c++11 -Wunsupported-dll-base-class-template -DMS %s
// RUN: %clang_cc1 -triple x86_64-win32 -fsyntax-only -fms-extensions -verify -std=c++1y -Wunsupported-dll-base-class-template -DMS %s
// RUN: %clang_cc1 -triple i686-mingw32 -fsyntax-only -fms-extensions -verify -std=c++1y -Wunsupported-dll-base-class-template -DGNU %s
// RUN: %clang_cc1 -triple x86_64-mingw32 -fsyntax-only -fms-extensions -verify -std=c++11 -Wunsupported-dll-base-class-template -DGNU %s
// RUN: %clang_cc1 -triple i686-windows-itanium -fsyntax-only -fms-extensions -verify -std=c++11 -Wunsupported-dll-base-class-template -DWI %s
// RUN: %clang_cc1 -triple x86_64-windows-itanium -fsyntax-only -fms-extensions -verify -std=c++1y -Wunsupported-dll-base-class-template -DWI %s
// RUN: %clang_cc1 -triple x86_64-scei-ps4 -fsyntax-only -fdeclspec -verify -std=c++11 -Wunsupported-dll-base-class-template -DPS %s
// RUN: %clang_cc1 -triple x86_64-sie-ps5 -fsyntax-only -fdeclspec -verify -std=c++1y -Wunsupported-dll-base-class-template -DPS %s
// Helper structs to make templates more expressive.
struct ImplicitInst_Exported {};
struct ExplicitDecl_Exported {};
struct ExplicitInst_Exported {};
struct ExplicitSpec_Exported {};
struct ExplicitSpec_Def_Exported {};
struct ExplicitSpec_InlineDef_Exported {};
struct ExplicitSpec_NotExported {};
namespace { struct Internal {}; }
struct External { int v; };
// Invalid usage.
__declspec(dllexport) typedef int typedef1;
// expected-warning@-1{{'dllexport' attribute only applies to functions, variables, classes, and Objective-C interfaces}}
typedef __declspec(dllexport) int typedef2;
// expected-warning@-1{{'dllexport' attribute only applies to}}
typedef int __declspec(dllexport) typedef3;
// expected-warning@-1{{'dllexport' attribute only applies to}}
typedef __declspec(dllexport) void (*FunTy)();
// expected-warning@-1{{'dllexport' attribute only applies to}}
enum __declspec(dllexport) Enum {};
// expected-warning@-1{{'dllexport' attribute only applies to}}
#if __has_feature(cxx_strong_enums)
enum class __declspec(dllexport) EnumClass {};
// expected-warning@-1{{'dllexport' attribute only applies to}}
#endif
//===----------------------------------------------------------------------===//
// Globals
//===----------------------------------------------------------------------===//
// Export declaration.
__declspec(dllexport) extern int ExternGlobalDecl;
// dllexport implies a definition.
__declspec(dllexport) int GlobalDef;
// Export definition.
__declspec(dllexport) int GlobalInit1 = 1;
int __declspec(dllexport) GlobalInit2 = 1;
// Declare, then export definition.
__declspec(dllexport) extern int GlobalDeclInit;
int GlobalDeclInit = 1;
// Redeclarations
__declspec(dllexport) extern int GlobalRedecl1;
__declspec(dllexport) int GlobalRedecl1;
__declspec(dllexport) extern int GlobalRedecl2;
int GlobalRedecl2;
extern int GlobalRedecl3; // expected-note{{previous declaration is here}}
__declspec(dllexport) extern int GlobalRedecl3; // expected-warning{{redeclaration of 'GlobalRedecl3' should not add 'dllexport' attribute}}
extern "C" {
extern int GlobalRedecl4; // expected-note{{previous declaration is here}}
__declspec(dllexport) extern int GlobalRedecl4; // expected-warning{{redeclaration of 'GlobalRedecl4' should not add 'dllexport' attribute}}
}
// External linkage is required.
__declspec(dllexport) static int StaticGlobal; // expected-error{{'StaticGlobal' must have external linkage when declared 'dllexport'}}
__declspec(dllexport) Internal InternalTypeGlobal; // expected-error{{'InternalTypeGlobal' must have external linkage when declared 'dllexport'}}
#ifndef MS
namespace { __declspec(dllexport) int InternalGlobal; } // expected-error{{'(anonymous namespace)::InternalGlobal' must have external linkage when declared 'dllexport'}}
#endif
namespace ns { __declspec(dllexport) int ExternalGlobal; }
__declspec(dllexport) auto InternalAutoTypeGlobal = Internal(); // expected-error{{'InternalAutoTypeGlobal' must have external linkage when declared 'dllexport'}}
__declspec(dllexport) auto ExternalAutoTypeGlobal = External();
// Thread local variables are invalid.
__declspec(dllexport) __thread int ThreadLocalGlobal; // expected-error{{'ThreadLocalGlobal' cannot be thread local when declared 'dllexport'}}
// But a static local TLS var in an export function is OK.
inline void __declspec(dllexport) ExportedInlineWithThreadLocal() {
static __thread int OK; // no-error
}
// Export in local scope.
void functionScope() {
__declspec(dllexport) int LocalVarDecl; // expected-error{{'LocalVarDecl' must have external linkage when declared 'dllexport'}}
__declspec(dllexport) int LocalVarDef = 1; // expected-error{{'LocalVarDef' must have external linkage when declared 'dllexport'}}
__declspec(dllexport) extern int ExternLocalVarDecl;
__declspec(dllexport) static int StaticLocalVar; // expected-error{{'StaticLocalVar' must have external linkage when declared 'dllexport'}}
}
//===----------------------------------------------------------------------===//
// Variable templates
//===----------------------------------------------------------------------===//
#if __has_feature(cxx_variable_templates)
// Export declaration.
template<typename T> __declspec(dllexport) extern int ExternVarTmplDecl;
// dllexport implies a definition.
template<typename T> __declspec(dllexport) int VarTmplDef;
// Export definition.
template<typename T> __declspec(dllexport) int VarTmplInit1 = 1;
template<typename T> int __declspec(dllexport) VarTmplInit2 = 1;
// Declare, then export definition.
template<typename T> __declspec(dllexport) extern int VarTmplDeclInit;
template<typename T> int VarTmplDeclInit = 1;
// Redeclarations
template<typename T> __declspec(dllexport) extern int VarTmplRedecl1;
template<typename T> __declspec(dllexport) int VarTmplRedecl1 = 1;
template<typename T> __declspec(dllexport) extern int VarTmplRedecl2;
template<typename T> int VarTmplRedecl2 = 1;
template<typename T> extern int VarTmplRedecl3; // expected-note{{previous declaration is here}}
template<typename T> __declspec(dllexport) extern int VarTmplRedecl3; // expected-error{{redeclaration of 'VarTmplRedecl3' cannot add 'dllexport' attribute}}
// External linkage is required.
template<typename T> __declspec(dllexport) static int StaticVarTmpl; // expected-error{{'StaticVarTmpl' must have external linkage when declared 'dllexport'}}
template<typename T> __declspec(dllexport) Internal InternalTypeVarTmpl; // expected-error{{'InternalTypeVarTmpl' must have external linkage when declared 'dllexport'}}
#ifndef MS
namespace { template<typename T> __declspec(dllexport) int InternalVarTmpl; } // expected-error{{'(anonymous namespace)::InternalVarTmpl' must have external linkage when declared 'dllexport'}}
#endif
namespace ns { template<typename T> __declspec(dllexport) int ExternalVarTmpl = 1; }
template<typename T> __declspec(dllexport) auto InternalAutoTypeVarTmpl = Internal(); // expected-error{{'InternalAutoTypeVarTmpl' must have external linkage when declared 'dllexport'}}
template<typename T> __declspec(dllexport) auto ExternalAutoTypeVarTmpl = External();
template External ExternalAutoTypeVarTmpl<ExplicitInst_Exported>;
template<typename T> int VarTmpl = 1;
template<typename T> __declspec(dllexport) int ExportedVarTmpl = 1;
// Export implicit instantiation of an exported variable template.
int useVarTmpl() { return ExportedVarTmpl<ImplicitInst_Exported>; }
// Export explicit instantiation declaration of an exported variable template.
extern template int ExportedVarTmpl<ExplicitDecl_Exported>;
template int ExportedVarTmpl<ExplicitDecl_Exported>;
// Export explicit instantiation definition of an exported variable template.
template __declspec(dllexport) int ExportedVarTmpl<ExplicitInst_Exported>;
// Export specialization of an exported variable template.
template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Exported>;
template<> __declspec(dllexport) int ExportedVarTmpl<ExplicitSpec_Def_Exported> = 1;
// Not exporting specialization of an exported variable template without
// explicit dllexport.
template<> int ExportedVarTmpl<ExplicitSpec_NotExported>;
// Export explicit instantiation declaration of a non-exported variable template.
extern template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>;
template __declspec(dllexport) int VarTmpl<ExplicitDecl_Exported>;
// Export explicit instantiation definition of a non-exported variable template.
template __declspec(dllexport) int VarTmpl<ExplicitInst_Exported>;
// Export specialization of a non-exported variable template.
template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Exported>;
template<> __declspec(dllexport) int VarTmpl<ExplicitSpec_Def_Exported> = 1;
#endif // __has_feature(cxx_variable_templates)
//===----------------------------------------------------------------------===//
// Functions
//===----------------------------------------------------------------------===//
// Export function declaration. Check different placements.
__attribute__((dllexport)) void decl1A(); // Correctness check with __attribute__
__declspec(dllexport) void decl1B();
void __attribute__((dllexport)) decl2A();
void __declspec(dllexport) decl2B();
// Export function definition.
__declspec(dllexport) void def() {}
// extern "C"
extern "C" __declspec(dllexport) void externC() {}
// Export inline function.
__declspec(dllexport) inline void inlineFunc1() {}
inline void __attribute__((dllexport)) inlineFunc2() {}
__declspec(dllexport) inline void inlineDecl();
void inlineDecl() {}
__declspec(dllexport) void inlineDef();
inline void inlineDef() {}
// Redeclarations
__declspec(dllexport) void redecl1();
__declspec(dllexport) void redecl1() {}
__declspec(dllexport) void redecl2();
void redecl2() {}
void redecl3(); // expected-note{{previous declaration is here}}
__declspec(dllexport) void redecl3(); // expected-warning{{redeclaration of 'redecl3' should not add 'dllexport' attribute}}
extern "C" {
void redecl4(); // expected-note{{previous declaration is here}}
__declspec(dllexport) void redecl4(); // expected-warning{{redeclaration of 'redecl4' should not add 'dllexport' attribute}}
}
void redecl5(); // expected-note{{previous declaration is here}}
__declspec(dllexport) inline void redecl5() {} // expected-warning{{redeclaration of 'redecl5' should not add 'dllexport' attribute}}
// Friend functions
struct FuncFriend {
friend __declspec(dllexport) void friend1();
friend __declspec(dllexport) void friend2();
friend void friend3(); // expected-note{{previous declaration is here}}
friend void friend4(); // expected-note{{previous declaration is here}}
};
__declspec(dllexport) void friend1() {}
void friend2() {}
__declspec(dllexport) void friend3() {} // expected-warning{{redeclaration of 'friend3' should not add 'dllexport' attribute}}
__declspec(dllexport) inline void friend4() {} // expected-warning{{redeclaration of 'friend4' should not add 'dllexport' attribute}}
// Implicit declarations can be redeclared with dllexport.
__declspec(dllexport) void* operator new(__SIZE_TYPE__ n);
// External linkage is required.
__declspec(dllexport) static int staticFunc(); // expected-error{{'staticFunc' must have external linkage when declared 'dllexport'}}
__declspec(dllexport) Internal internalRetFunc(); // expected-error{{'internalRetFunc' must have external linkage when declared 'dllexport'}}
namespace { __declspec(dllexport) void internalFunc() {} } // expected-error{{'(anonymous namespace)::internalFunc' must have external linkage when declared 'dllexport'}}
namespace ns { __declspec(dllexport) void externalFunc() {} }
// Export deleted function.
__declspec(dllexport) void deletedFunc() = delete; // expected-error{{attribute 'dllexport' cannot be applied to a deleted function}}
__declspec(dllexport) inline void deletedInlineFunc() = delete; // expected-error{{attribute 'dllexport' cannot be applied to a deleted function}}
//===----------------------------------------------------------------------===//
// Function templates
//===----------------------------------------------------------------------===//
// Export function template declaration. Check different placements.
template<typename T> __declspec(dllexport) void funcTmplDecl1();
template<typename T> void __declspec(dllexport) funcTmplDecl2();
// Export function template definition.
template<typename T> __declspec(dllexport) void funcTmplDef() {}
// Export inline function template.
template<typename T> __declspec(dllexport) inline void inlineFuncTmpl1() {}
template<typename T> inline void __attribute__((dllexport)) inlineFuncTmpl2() {}
template<typename T> __declspec(dllexport) inline void inlineFuncTmplDecl();
template<typename T> void inlineFuncTmplDecl() {}
template<typename T> __declspec(dllexport) void inlineFuncTmplDef();
template<typename T> inline void inlineFuncTmplDef() {}
// Redeclarations
template<typename T> __declspec(dllexport) void funcTmplRedecl1();
template<typename T> __declspec(dllexport) void funcTmplRedecl1() {}
template<typename T> __declspec(dllexport) void funcTmplRedecl2();
template<typename T> void funcTmplRedecl2() {}
template<typename T> void funcTmplRedecl3(); // expected-note{{previous declaration is here}}
template<typename T> __declspec(dllexport) void funcTmplRedecl3(); // expected-error{{redeclaration of 'funcTmplRedecl3' cannot add 'dllexport' attribute}}
template<typename T> void funcTmplRedecl4(); // expected-note{{previous declaration is here}}
template<typename T> __declspec(dllexport) inline void funcTmplRedecl4() {} // expected-error{{redeclaration of 'funcTmplRedecl4' cannot add 'dllexport' attribute}}
// Function template friends
struct FuncTmplFriend {
template<typename T> friend __declspec(dllexport) void funcTmplFriend1();
template<typename T> friend __declspec(dllexport) void funcTmplFriend2();
template<typename T> friend void funcTmplFriend3(); // expected-note{{previous declaration is here}}
template<typename T> friend void funcTmplFriend4(); // expected-note{{previous declaration is here}}
};
template<typename T> __declspec(dllexport) void funcTmplFriend1() {}
template<typename T> void funcTmplFriend2() {}
template<typename T> __declspec(dllexport) void funcTmplFriend3() {} // expected-error{{redeclaration of 'funcTmplFriend3' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) inline void funcTmplFriend4() {} // expected-error{{redeclaration of 'funcTmplFriend4' cannot add 'dllexport' attribute}}
// External linkage is required.
template<typename T> __declspec(dllexport) static int staticFuncTmpl(); // expected-error{{'staticFuncTmpl' must have external linkage when declared 'dllexport'}}
template<typename T> __declspec(dllexport) Internal internalRetFuncTmpl(); // expected-error{{'internalRetFuncTmpl' must have external linkage when declared 'dllexport'}}
namespace { template<typename T> __declspec(dllexport) void internalFuncTmpl(); } // expected-error{{'(anonymous namespace)::internalFuncTmpl' must have external linkage when declared 'dllexport'}}
namespace ns { template<typename T> __declspec(dllexport) void externalFuncTmpl(); }
template<typename T> void funcTmpl() {}
template<typename T> __declspec(dllexport) void exportedFuncTmplDecl();
template<typename T> __declspec(dllexport) void exportedFuncTmpl() {}
// Export implicit instantiation of an exported function template.
void useFunTmplDecl() { exportedFuncTmplDecl<ImplicitInst_Exported>(); }
void useFunTmplDef() { exportedFuncTmpl<ImplicitInst_Exported>(); }
// Export explicit instantiation declaration of an exported function template.
extern template void exportedFuncTmpl<ExplicitDecl_Exported>();
template void exportedFuncTmpl<ExplicitDecl_Exported>();
// Export explicit instantiation definition of an exported function template.
template void exportedFuncTmpl<ExplicitInst_Exported>();
// Export specialization of an exported function template.
template<> __declspec(dllexport) void exportedFuncTmpl<ExplicitSpec_Exported>();
template<> __declspec(dllexport) void exportedFuncTmpl<ExplicitSpec_Def_Exported>() {}
template<> __declspec(dllexport) inline void exportedFuncTmpl<ExplicitSpec_InlineDef_Exported>() {}
// Not exporting specialization of an exported function template without
// explicit dllexport.
template<> void exportedFuncTmpl<ExplicitSpec_NotExported>() {}
// Export explicit instantiation declaration of a non-exported function template.
extern template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>();
template __declspec(dllexport) void funcTmpl<ExplicitDecl_Exported>();
// Export explicit instantiation definition of a non-exported function template.
template __declspec(dllexport) void funcTmpl<ExplicitInst_Exported>();
// Export specialization of a non-exported function template.
template<> __declspec(dllexport) void funcTmpl<ExplicitSpec_Exported>();
template<> __declspec(dllexport) void funcTmpl<ExplicitSpec_Def_Exported>() {}
template<> __declspec(dllexport) inline void funcTmpl<ExplicitSpec_InlineDef_Exported>() {}
//===----------------------------------------------------------------------===//
// Classes
//===----------------------------------------------------------------------===//
namespace {
struct __declspec(dllexport) AnonymousClass {}; // expected-error{{(anonymous namespace)::AnonymousClass' must have external linkage when declared 'dllexport'}}
}
class __declspec(dllexport) ClassDecl;
class __declspec(dllexport) ClassDef {};
#if defined(MS) || defined (WI) || defined(PS)
// expected-warning@+3{{'dllexport' attribute ignored}}
#endif
template <typename T> struct PartiallySpecializedClassTemplate {};
template <typename T> struct __declspec(dllexport) PartiallySpecializedClassTemplate<T*> { void f() {} };
template <typename T> struct ExpliciallySpecializedClassTemplate {};
template <> struct __declspec(dllexport) ExpliciallySpecializedClassTemplate<int> { void f() {} };
// Don't instantiate class members of implicitly instantiated templates, even if they are exported.
struct IncompleteType;
template <typename T> struct __declspec(dllexport) ImplicitlyInstantiatedExportedTemplate {
int f() { return sizeof(T); } // no-error
};
ImplicitlyInstantiatedExportedTemplate<IncompleteType> implicitlyInstantiatedExportedTemplate;
// Don't instantiate class members of templates with explicit instantiation declarations, even if they are exported.
struct IncompleteType2;
#if defined(MS) || defined (WI) || defined(PS)
// expected-note@+2{{attribute is here}}
#endif
template <typename T> struct __declspec(dllexport) ExportedTemplateWithExplicitInstantiationDecl {
int f() { return sizeof(T); } // no-error
};
#if defined(MS) || defined (WI) || defined(PS)
// expected-warning@+2{{explicit instantiation declaration should not be 'dllexport'}}
#endif
extern template struct ExportedTemplateWithExplicitInstantiationDecl<IncompleteType2>;
// Instantiate class members for explicitly instantiated exported templates.
struct IncompleteType3; // expected-note{{forward declaration of 'IncompleteType3'}}
template <typename T> struct __declspec(dllexport) ExplicitlyInstantiatedExportedTemplate {
int f() { return sizeof(T); } // expected-error{{invalid application of 'sizeof' to an incomplete type 'IncompleteType3'}}
};
template struct ExplicitlyInstantiatedExportedTemplate<IncompleteType3>; // expected-note{{in instantiation of member function 'ExplicitlyInstantiatedExportedTemplate<IncompleteType3>::f' requested here}}
// In MS mode, instantiate members of class templates that are base classes of exported classes.
#if defined(MS) || defined(PS)
// expected-note@+3{{forward declaration of 'IncompleteType4'}}
// expected-note@+3{{in instantiation of member function 'BaseClassTemplateOfExportedClass<IncompleteType4>::f' requested here}}
#endif
struct IncompleteType4;
template <typename T> struct BaseClassTemplateOfExportedClass {
#if defined(MS) || defined(PS)
// expected-error@+2{{invalid application of 'sizeof' to an incomplete type 'IncompleteType4'}}
#endif
int f() { return sizeof(T); };
};
struct __declspec(dllexport) ExportedBaseClass : public BaseClassTemplateOfExportedClass<IncompleteType4> {};
// Don't instantiate members of explicitly exported class templates that are base classes of exported classes.
struct IncompleteType5;
template <typename T> struct __declspec(dllexport) ExportedBaseClassTemplateOfExportedClass {
int f() { return sizeof(T); }; // no-error
};
struct __declspec(dllexport) ExportedBaseClass2 : public ExportedBaseClassTemplateOfExportedClass<IncompleteType5> {};
// Warn about explicit instantiation declarations of dllexport classes.
template <typename T> struct ExplicitInstantiationDeclTemplate {};
#if defined(MS) || defined (WI) || defined(PS)
// expected-warning@+2{{explicit instantiation declaration should not be 'dllexport'}} expected-note@+2{{attribute is here}}
#endif
extern template struct __declspec(dllexport) ExplicitInstantiationDeclTemplate<int>;
template <typename T> struct __declspec(dllexport) ExplicitInstantiationDeclExportedTemplate {};
#if defined(MS) || defined (WI) || defined(PS)
// expected-note@-2{{attribute is here}}
// expected-warning@+2{{explicit instantiation declaration should not be 'dllexport'}}
#endif
extern template struct ExplicitInstantiationDeclExportedTemplate<int>;
namespace { struct InternalLinkageType {}; }
struct __declspec(dllexport) PR23308 {
void f(InternalLinkageType*);
};
void PR23308::f(InternalLinkageType*) {} // No error; we don't try to export f because it has internal linkage.
//===----------------------------------------------------------------------===//
// Classes with template base classes
//===----------------------------------------------------------------------===//
class __declspec(dllexport) ExportedClass {};
class __declspec(dllimport) ImportedClass {};
template <typename T> class ClassTemplate {};
#if not defined(MS) && not defined(PS)
// expected-error@+2{{'ExportedClassTemplate<LocalCRTP>' must have external linkage when declared 'dllexport'}}
#endif
template <typename T> class __declspec(dllexport) ExportedClassTemplate {};
template <typename T> class __declspec(dllimport) ImportedClassTemplate {};
template <typename T> struct ExplicitlySpecializedTemplate { void func() {} };
#if defined(MS) || defined(PS)
// expected-note@+2{{class template 'ExplicitlySpecializedTemplate<int>' was explicitly specialized here}}
#endif
template <> struct ExplicitlySpecializedTemplate<int> { void func() {} };
template <typename T> struct ExplicitlyExportSpecializedTemplate { void func() {} };
template <> struct __declspec(dllexport) ExplicitlyExportSpecializedTemplate<int> { void func() {} };
template <typename T> struct ExplicitlyImportSpecializedTemplate { void func() {} };
template <> struct __declspec(dllimport) ExplicitlyImportSpecializedTemplate<int> { void func() {} };
template <typename T> struct ExplicitlyInstantiatedTemplate { void func() {} };
#if defined(MS) || defined(PS)
// expected-note@+2{{class template 'ExplicitlyInstantiatedTemplate<int>' was instantiated here}}
#endif
template struct ExplicitlyInstantiatedTemplate<int>;
template <typename T> struct ExplicitlyExportInstantiatedTemplate { void func() {} };
template struct __declspec(dllexport) ExplicitlyExportInstantiatedTemplate<int>;
template <typename T> struct ExplicitlyExportDeclaredInstantiatedTemplate { void func() {} };
extern template struct ExplicitlyExportDeclaredInstantiatedTemplate<int>;
#if not defined(MS) && not defined (WI) && not defined(PS)
// expected-warning@+2{{'dllexport' attribute ignored on explicit instantiation definition}}
#endif
template struct __declspec(dllexport) ExplicitlyExportDeclaredInstantiatedTemplate<int>;
template <typename T> struct ExplicitlyImportInstantiatedTemplate { void func() {} };
template struct __declspec(dllimport) ExplicitlyImportInstantiatedTemplate<int>;
// ClassTemplate<int> gets exported.
class __declspec(dllexport) DerivedFromTemplate : public ClassTemplate<int> {};
// ClassTemplate<int> is already exported.
class __declspec(dllexport) DerivedFromTemplate2 : public ClassTemplate<int> {};
// ExportedTemplate is explicitly exported.
class __declspec(dllexport) DerivedFromExportedTemplate : public ExportedClassTemplate<int> {};
// ImportedTemplate is explicitly imported.
class __declspec(dllexport) DerivedFromImportedTemplate : public ImportedClassTemplate<int> {};
class DerivedFromTemplateD : public ClassTemplate<double> {};
// Base class previously implicitly instantiated without attribute; it will get propagated.
class __declspec(dllexport) DerivedFromTemplateD2 : public ClassTemplate<double> {};
// Base class has explicit instantiation declaration; the attribute will get propagated.
extern template class ClassTemplate<float>;
class __declspec(dllexport) DerivedFromTemplateF : public ClassTemplate<float> {};
class __declspec(dllexport) DerivedFromTemplateB : public ClassTemplate<bool> {};
// The second derived class doesn't change anything, the attribute that was propagated first wins.
class __declspec(dllimport) DerivedFromTemplateB2 : public ClassTemplate<bool> {};
#if defined(MS) || defined(PS)
// expected-warning@+3{{propagating dll attribute to explicitly specialized base class template without dll attribute is not supported}}
// expected-note@+2{{attribute is here}}
#endif
struct __declspec(dllexport) DerivedFromExplicitlySpecializedTemplate : public ExplicitlySpecializedTemplate<int> {};
// Base class alredy specialized with export attribute.
struct __declspec(dllexport) DerivedFromExplicitlyExportSpecializedTemplate : public ExplicitlyExportSpecializedTemplate<int> {};
// Base class already specialized with import attribute.
struct __declspec(dllexport) DerivedFromExplicitlyImportSpecializedTemplate : public ExplicitlyImportSpecializedTemplate<int> {};
#if defined(MS) || defined(PS)
// expected-warning@+3{{propagating dll attribute to already instantiated base class template without dll attribute is not supported}}
// expected-note@+2{{attribute is here}}
#endif
struct __declspec(dllexport) DerivedFromExplicitlyInstantiatedTemplate : public ExplicitlyInstantiatedTemplate<int> {};
// Base class already instantiated with export attribute.
struct __declspec(dllexport) DerivedFromExplicitlyExportInstantiatedTemplate : public ExplicitlyExportInstantiatedTemplate<int> {};
// Base class already instantiated with import attribute.
struct __declspec(dllexport) DerivedFromExplicitlyImportInstantiatedTemplate : public ExplicitlyImportInstantiatedTemplate<int> {};
template <typename T> struct ExplicitInstantiationDeclTemplateBase { void func() {} };
extern template struct ExplicitInstantiationDeclTemplateBase<int>;
struct __declspec(dllexport) DerivedFromExplicitInstantiationDeclTemplateBase : public ExplicitInstantiationDeclTemplateBase<int> {};
void func() {
// MSVC allows deriving from exported template classes in local contexts.
class LocalDerivedFromExportedClass : public ExportedClass {};
class LocalDerivedFromExportedTemplate : public ExportedClassTemplate<int> {};
#if not defined(MS) && not defined (PS)
// expected-note@+2{{in instantiation of template class 'ExportedClassTemplate<LocalCRTP>' requested here}}
#endif
class LocalCRTP : public ExportedClassTemplate<LocalCRTP> {};
}
//===----------------------------------------------------------------------===//
// Precedence
//===----------------------------------------------------------------------===//
// dllexport takes precedence over dllimport if both are specified.
__attribute__((dllimport, dllexport)) extern int PrecedenceExternGlobal1A; // expected-warning{{'dllimport' attribute ignored}}
__declspec(dllimport) __declspec(dllexport) extern int PrecedenceExternGlobal1B; // expected-warning{{'dllimport' attribute ignored}}
__attribute__((dllexport, dllimport)) extern int PrecedenceExternGlobal2A; // expected-warning{{'dllimport' attribute ignored}}
__declspec(dllexport) __declspec(dllimport) extern int PrecedenceExternGlobal2B; // expected-warning{{'dllimport' attribute ignored}}
__attribute__((dllimport, dllexport)) int PrecedenceGlobal1A; // expected-warning{{'dllimport' attribute ignored}}
__declspec(dllimport) __declspec(dllexport) int PrecedenceGlobal1B; // expected-warning{{'dllimport' attribute ignored}}
__attribute__((dllexport, dllimport)) int PrecedenceGlobal2A; // expected-warning{{'dllimport' attribute ignored}}
__declspec(dllexport) __declspec(dllimport) int PrecedenceGlobal2B; // expected-warning{{'dllimport' attribute ignored}}
__declspec(dllexport) extern int PrecedenceExternGlobalRedecl1;
__declspec(dllimport) extern int PrecedenceExternGlobalRedecl1; // expected-warning{{'dllimport' attribute ignored}}
__declspec(dllimport) extern int PrecedenceExternGlobalRedecl2; // expected-warning{{'dllimport' attribute ignored}}
__declspec(dllexport) extern int PrecedenceExternGlobalRedecl2;
__declspec(dllexport) extern int PrecedenceGlobalRedecl1;
__declspec(dllimport) int PrecedenceGlobalRedecl1; // expected-warning{{'dllimport' attribute ignored}}
__declspec(dllimport) extern int PrecedenceGlobalRedecl2; // expected-warning{{'dllimport' attribute ignored}}
__declspec(dllexport) int PrecedenceGlobalRedecl2;
void __attribute__((dllimport, dllexport)) precedence1A() {} // expected-warning{{'dllimport' attribute ignored}}
void __declspec(dllimport) __declspec(dllexport) precedence1B() {} // expected-warning{{'dllimport' attribute ignored}}
void __attribute__((dllexport, dllimport)) precedence2A() {} // expected-warning{{'dllimport' attribute ignored}}
void __declspec(dllexport) __declspec(dllimport) precedence2B() {} // expected-warning{{'dllimport' attribute ignored}}
void __declspec(dllimport) precedenceRedecl1(); // expected-warning{{'dllimport' attribute ignored}}
void __declspec(dllexport) precedenceRedecl1() {}
void __declspec(dllexport) precedenceRedecl2();
void __declspec(dllimport) precedenceRedecl2() {} // expected-warning{{'dllimport' attribute ignored}}
//===----------------------------------------------------------------------===//
// Class members
//===----------------------------------------------------------------------===//
// Export individual members of a class.
struct ExportMembers {
struct Nested {
__declspec(dllexport) void normalDef();
};
__declspec(dllexport) void normalDecl();
__declspec(dllexport) void normalDef();
__declspec(dllexport) void normalInclass() {}
__declspec(dllexport) void normalInlineDef();
__declspec(dllexport) inline void normalInlineDecl();
__declspec(dllexport) virtual void virtualDecl();
__declspec(dllexport) virtual void virtualDef();
__declspec(dllexport) virtual void virtualInclass() {}
__declspec(dllexport) virtual void virtualInlineDef();
__declspec(dllexport) virtual inline void virtualInlineDecl();
__declspec(dllexport) static void staticDecl();
__declspec(dllexport) static void staticDef();
__declspec(dllexport) static void staticInclass() {}
__declspec(dllexport) static void staticInlineDef();
__declspec(dllexport) static inline void staticInlineDecl();
protected:
__declspec(dllexport) void protectedDef();
private:
__declspec(dllexport) void privateDef();
public:
__declspec(dllexport) int Field; // expected-warning{{'dllexport' attribute only applies to}}
__declspec(dllexport) static int StaticField;
__declspec(dllexport) static int StaticFieldDef;
__declspec(dllexport) static const int StaticConstField;
__declspec(dllexport) static const int StaticConstFieldDef;
__declspec(dllexport) static const int StaticConstFieldEqualInit = 1;
__declspec(dllexport) static const int StaticConstFieldBraceInit{1};
__declspec(dllexport) constexpr static int ConstexprField = 1;
__declspec(dllexport) constexpr static int ConstexprFieldDef = 1;
};
void ExportMembers::Nested::normalDef() {}
void ExportMembers::normalDef() {}
inline void ExportMembers::normalInlineDef() {}
void ExportMembers::normalInlineDecl() {}
void ExportMembers::virtualDef() {}
inline void ExportMembers::virtualInlineDef() {}
void ExportMembers::virtualInlineDecl() {}
void ExportMembers::staticDef() {}
inline void ExportMembers::staticInlineDef() {}
void ExportMembers::staticInlineDecl() {}
void ExportMembers::protectedDef() {}
void ExportMembers::privateDef() {}
int ExportMembers::StaticFieldDef;
const int ExportMembers::StaticConstFieldDef = 1;
constexpr int ExportMembers::ConstexprFieldDef;
// Export on member definitions.
struct ExportMemberDefs {
__declspec(dllexport) void normalDef();
__declspec(dllexport) void normalInlineDef();
__declspec(dllexport) inline void normalInlineDecl();
__declspec(dllexport) virtual void virtualDef();
__declspec(dllexport) virtual void virtualInlineDef();
__declspec(dllexport) virtual inline void virtualInlineDecl();
__declspec(dllexport) static void staticDef();
__declspec(dllexport) static void staticInlineDef();
__declspec(dllexport) static inline void staticInlineDecl();
__declspec(dllexport) static int StaticField;
__declspec(dllexport) static const int StaticConstField;
__declspec(dllexport) constexpr static int ConstexprField = 1;
};
__declspec(dllexport) void ExportMemberDefs::normalDef() {}
__declspec(dllexport) inline void ExportMemberDefs::normalInlineDef() {}
__declspec(dllexport) void ExportMemberDefs::normalInlineDecl() {}
__declspec(dllexport) void ExportMemberDefs::virtualDef() {}
__declspec(dllexport) inline void ExportMemberDefs::virtualInlineDef() {}
__declspec(dllexport) void ExportMemberDefs::virtualInlineDecl() {}
__declspec(dllexport) void ExportMemberDefs::staticDef() {}
__declspec(dllexport) inline void ExportMemberDefs::staticInlineDef() {}
__declspec(dllexport) void ExportMemberDefs::staticInlineDecl() {}
__declspec(dllexport) int ExportMemberDefs::StaticField;
__declspec(dllexport) const int ExportMemberDefs::StaticConstField = 1;
__declspec(dllexport) constexpr int ExportMemberDefs::ConstexprField;
// Export special member functions.
struct ExportSpecials {
__declspec(dllexport) ExportSpecials() {}
__declspec(dllexport) ~ExportSpecials();
__declspec(dllexport) inline ExportSpecials(const ExportSpecials&);
__declspec(dllexport) ExportSpecials& operator=(const ExportSpecials&);
__declspec(dllexport) ExportSpecials(ExportSpecials&&);
__declspec(dllexport) ExportSpecials& operator=(ExportSpecials&&);
};
ExportSpecials::~ExportSpecials() {}
ExportSpecials::ExportSpecials(const ExportSpecials&) {}
inline ExportSpecials& ExportSpecials::operator=(const ExportSpecials&) { return *this; }
ExportSpecials::ExportSpecials(ExportSpecials&&) {}
ExportSpecials& ExportSpecials::operator=(ExportSpecials&&) { return *this; }
// Export allocation functions.
extern "C" void* malloc(__SIZE_TYPE__ size);
extern "C" void free(void* p);
struct ExportAlloc {
__declspec(dllexport) void* operator new(__SIZE_TYPE__);
__declspec(dllexport) void* operator new[](__SIZE_TYPE__);
__declspec(dllexport) void operator delete(void*);
__declspec(dllexport) void operator delete[](void*);
};
void* ExportAlloc::operator new(__SIZE_TYPE__ n) { return malloc(n); }
void* ExportAlloc::operator new[](__SIZE_TYPE__ n) { return malloc(n); }
void ExportAlloc::operator delete(void* p) { free(p); }
void ExportAlloc::operator delete[](void* p) { free(p); }
// Export deleted member functions.
struct ExportDeleted {
__declspec(dllexport) ExportDeleted() = delete; // expected-error{{attribute 'dllexport' cannot be applied to a deleted function}}
__declspec(dllexport) ~ExportDeleted() = delete; // expected-error{{attribute 'dllexport' cannot be applied to a deleted function}}
__declspec(dllexport) ExportDeleted(const ExportDeleted&) = delete; // expected-error{{attribute 'dllexport' cannot be applied to a deleted function}}
__declspec(dllexport) ExportDeleted& operator=(const ExportDeleted&) = delete; // expected-error{{attribute 'dllexport' cannot be applied to a deleted function}}
__declspec(dllexport) ExportDeleted(ExportDeleted&&) = delete; // expected-error{{attribute 'dllexport' cannot be applied to a deleted function}}
__declspec(dllexport) ExportDeleted& operator=(ExportDeleted&&) = delete; // expected-error{{attribute 'dllexport' cannot be applied to a deleted function}}
__declspec(dllexport) void deleted() = delete; // expected-error{{attribute 'dllexport' cannot be applied to a deleted function}}
};
// Export defaulted member functions.
struct ExportDefaulted {
__declspec(dllexport) ExportDefaulted() = default;
__declspec(dllexport) ~ExportDefaulted() = default;
__declspec(dllexport) ExportDefaulted(const ExportDefaulted&) = default;
__declspec(dllexport) ExportDefaulted& operator=(const ExportDefaulted&) = default;
__declspec(dllexport) ExportDefaulted(ExportDefaulted&&) = default;
__declspec(dllexport) ExportDefaulted& operator=(ExportDefaulted&&) = default;
};
// Export defaulted member function definitions.
struct ExportDefaultedDefs {
__declspec(dllexport) ExportDefaultedDefs();
__declspec(dllexport) ~ExportDefaultedDefs();
__declspec(dllexport) inline ExportDefaultedDefs(const ExportDefaultedDefs&);
__declspec(dllexport) ExportDefaultedDefs& operator=(const ExportDefaultedDefs&);
__declspec(dllexport) ExportDefaultedDefs(ExportDefaultedDefs&&);
__declspec(dllexport) ExportDefaultedDefs& operator=(ExportDefaultedDefs&&);
};
// Export definitions.
__declspec(dllexport) ExportDefaultedDefs::ExportDefaultedDefs() = default;
ExportDefaultedDefs::~ExportDefaultedDefs() = default;
// Export inline declaration and definition.
__declspec(dllexport) ExportDefaultedDefs::ExportDefaultedDefs(const ExportDefaultedDefs&) = default;
inline ExportDefaultedDefs& ExportDefaultedDefs::operator=(const ExportDefaultedDefs&) = default;
__declspec(dllexport) ExportDefaultedDefs::ExportDefaultedDefs(ExportDefaultedDefs&&) = default;
ExportDefaultedDefs& ExportDefaultedDefs::operator=(ExportDefaultedDefs&&) = default;
// Redeclarations cannot add dllexport.
struct MemberRedecl {
void normalDef(); // expected-note{{previous declaration is here}}
void normalInlineDef(); // expected-note{{previous declaration is here}}
inline void normalInlineDecl(); // expected-note{{previous declaration is here}}
virtual void virtualDef(); // expected-note{{previous declaration is here}}
virtual void virtualInlineDef(); // expected-note{{previous declaration is here}}
virtual inline void virtualInlineDecl(); // expected-note{{previous declaration is here}}
static void staticDef(); // expected-note{{previous declaration is here}}
static void staticInlineDef(); // expected-note{{previous declaration is here}}
static inline void staticInlineDecl(); // expected-note{{previous declaration is here}}
static int StaticField; // expected-note{{previous declaration is here}}
static const int StaticConstField; // expected-note{{previous declaration is here}}
constexpr static int ConstexprField = 1; // expected-note-re{{previous {{(declaration|definition)}} is here}}
};
__declspec(dllexport) void MemberRedecl::normalDef() {} // expected-error{{redeclaration of 'MemberRedecl::normalDef' cannot add 'dllexport' attribute}}
__declspec(dllexport) inline void MemberRedecl::normalInlineDef() {} // expected-error{{redeclaration of 'MemberRedecl::normalInlineDef' cannot add 'dllexport' attribute}}
__declspec(dllexport) void MemberRedecl::normalInlineDecl() {} // expected-error{{redeclaration of 'MemberRedecl::normalInlineDecl' cannot add 'dllexport' attribute}}
__declspec(dllexport) void MemberRedecl::virtualDef() {} // expected-error{{redeclaration of 'MemberRedecl::virtualDef' cannot add 'dllexport' attribute}}
__declspec(dllexport) inline void MemberRedecl::virtualInlineDef() {} // expected-error{{redeclaration of 'MemberRedecl::virtualInlineDef' cannot add 'dllexport' attribute}}
__declspec(dllexport) void MemberRedecl::virtualInlineDecl() {} // expected-error{{redeclaration of 'MemberRedecl::virtualInlineDecl' cannot add 'dllexport' attribute}}
__declspec(dllexport) void MemberRedecl::staticDef() {} // expected-error{{redeclaration of 'MemberRedecl::staticDef' cannot add 'dllexport' attribute}}
__declspec(dllexport) inline void MemberRedecl::staticInlineDef() {} // expected-error{{redeclaration of 'MemberRedecl::staticInlineDef' cannot add 'dllexport' attribute}}
__declspec(dllexport) void MemberRedecl::staticInlineDecl() {} // expected-error{{redeclaration of 'MemberRedecl::staticInlineDecl' cannot add 'dllexport' attribute}}
__declspec(dllexport) int MemberRedecl::StaticField = 1; // expected-error{{redeclaration of 'MemberRedecl::StaticField' cannot add 'dllexport' attribute}}
__declspec(dllexport) const int MemberRedecl::StaticConstField = 1; // expected-error{{redeclaration of 'MemberRedecl::StaticConstField' cannot add 'dllexport' attribute}}
#ifdef MS
// expected-warning@+4{{attribute declaration must precede definition}}
#else
// expected-error@+2{{redeclaration of 'MemberRedecl::ConstexprField' cannot add 'dllexport' attribute}}
#endif
__declspec(dllexport) constexpr int MemberRedecl::ConstexprField;
#ifdef MS
struct __declspec(dllexport) ClassWithMultipleDefaultCtors {
ClassWithMultipleDefaultCtors(int = 40) {} // expected-error{{'__declspec(dllexport)' cannot be applied to more than one default constructor}}
ClassWithMultipleDefaultCtors(int = 30, ...) {} // expected-note{{declared here}}
};
template <typename T>
struct ClassTemplateWithMultipleDefaultCtors {
__declspec(dllexport) ClassTemplateWithMultipleDefaultCtors(int = 40) {} // expected-error{{'__declspec(dllexport)' cannot be applied to more than one default constructor}}
__declspec(dllexport) ClassTemplateWithMultipleDefaultCtors(int = 30, ...) {} // expected-note{{declared here}}
};
template <typename T> struct HasDefaults {
HasDefaults(int x = sizeof(T)) {} // expected-error {{invalid application of 'sizeof'}}
};
template struct __declspec(dllexport) HasDefaults<char>;
template struct
__declspec(dllexport) // expected-note {{in instantiation of default function argument expression for 'HasDefaults<void>' required here}}
HasDefaults<void>; // expected-note {{in instantiation of member function 'HasDefaults<void>::HasDefaults' requested here}}
template <typename T> struct HasDefaults2 {
__declspec(dllexport) // expected-note {{in instantiation of default function argument expression for 'HasDefaults2<void>' required here}}
HasDefaults2(int x = sizeof(T)) {} // expected-error {{invalid application of 'sizeof'}}
};
template struct HasDefaults2<void>; // expected-note {{in instantiation of member function 'HasDefaults2<void>::HasDefaults2' requested here}}
template <typename T> struct __declspec(dllexport) HasDefaults3 { // expected-note{{in instantiation of default function argument expression for 'HasDefaults3<void>' required here}}
HasDefaults3(int x = sizeof(T)) {} // expected-error {{invalid application of 'sizeof'}}
};
template <> HasDefaults3<void>::HasDefaults3(int) {};
#endif
//===----------------------------------------------------------------------===//
// Class member templates
//===----------------------------------------------------------------------===//
struct ExportMemberTmpl {
template<typename T> __declspec(dllexport) void normalDecl();
template<typename T> __declspec(dllexport) void normalDef();
template<typename T> __declspec(dllexport) void normalInclass() {}
template<typename T> __declspec(dllexport) void normalInlineDef();
template<typename T> __declspec(dllexport) inline void normalInlineDecl();
template<typename T> __declspec(dllexport) static void staticDecl();
template<typename T> __declspec(dllexport) static void staticDef();
template<typename T> __declspec(dllexport) static void staticInclass() {}
template<typename T> __declspec(dllexport) static void staticInlineDef();
template<typename T> __declspec(dllexport) static inline void staticInlineDecl();
#if __has_feature(cxx_variable_templates)
template<typename T> __declspec(dllexport) static int StaticField;
template<typename T> __declspec(dllexport) static int StaticFieldDef;
template<typename T> __declspec(dllexport) static const int StaticConstField;
template<typename T> __declspec(dllexport) static const int StaticConstFieldDef;
template<typename T> __declspec(dllexport) static const int StaticConstFieldEqualInit = 1;
template<typename T> __declspec(dllexport) static const int StaticConstFieldBraceInit{1};
template<typename T> __declspec(dllexport) constexpr static int ConstexprField = 1;
template<typename T> __declspec(dllexport) constexpr static int ConstexprFieldDef = 1;
#endif // __has_feature(cxx_variable_templates)
};
template<typename T> void ExportMemberTmpl::normalDef() {}
template<typename T> inline void ExportMemberTmpl::normalInlineDef() {}
template<typename T> void ExportMemberTmpl::normalInlineDecl() {}
template<typename T> void ExportMemberTmpl::staticDef() {}
template<typename T> inline void ExportMemberTmpl::staticInlineDef() {}
template<typename T> void ExportMemberTmpl::staticInlineDecl() {}
#if __has_feature(cxx_variable_templates)
template<typename T> int ExportMemberTmpl::StaticFieldDef;
template<typename T> const int ExportMemberTmpl::StaticConstFieldDef = 1;
template<typename T> constexpr int ExportMemberTmpl::ConstexprFieldDef;
#endif // __has_feature(cxx_variable_templates)
// Redeclarations cannot add dllexport.
struct MemTmplRedecl {
template<typename T> void normalDef(); // expected-note{{previous declaration is here}}
template<typename T> void normalInlineDef(); // expected-note{{previous declaration is here}}
template<typename T> inline void normalInlineDecl(); // expected-note{{previous declaration is here}}
template<typename T> static void staticDef(); // expected-note{{previous declaration is here}}
template<typename T> static void staticInlineDef(); // expected-note{{previous declaration is here}}
template<typename T> static inline void staticInlineDecl(); // expected-note{{previous declaration is here}}
#if __has_feature(cxx_variable_templates)
template<typename T> static int StaticField; // expected-note{{previous declaration is here}}
template<typename T> static const int StaticConstField; // expected-note{{previous declaration is here}}
template<typename T> constexpr static int ConstexprField = 1; // expected-note-re{{previous {{(declaration|definition)}} is here}}
#endif // __has_feature(cxx_variable_templates)
};
template<typename T> __declspec(dllexport) void MemTmplRedecl::normalDef() {} // expected-error{{redeclaration of 'MemTmplRedecl::normalDef' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) inline void MemTmplRedecl::normalInlineDef() {} // expected-error{{redeclaration of 'MemTmplRedecl::normalInlineDef' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) void MemTmplRedecl::normalInlineDecl() {} // expected-error{{redeclaration of 'MemTmplRedecl::normalInlineDecl' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) void MemTmplRedecl::staticDef() {} // expected-error{{redeclaration of 'MemTmplRedecl::staticDef' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) inline void MemTmplRedecl::staticInlineDef() {} // expected-error{{redeclaration of 'MemTmplRedecl::staticInlineDef' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) void MemTmplRedecl::staticInlineDecl() {} // expected-error{{redeclaration of 'MemTmplRedecl::staticInlineDecl' cannot add 'dllexport' attribute}}
#if __has_feature(cxx_variable_templates)
template<typename T> __declspec(dllexport) int MemTmplRedecl::StaticField = 1; // expected-error{{redeclaration of 'MemTmplRedecl::StaticField' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) const int MemTmplRedecl::StaticConstField = 1; // expected-error{{redeclaration of 'MemTmplRedecl::StaticConstField' cannot add 'dllexport' attribute}}
#ifdef MS
// expected-warning@+4{{attribute declaration must precede definition}}
#else
// expected-error@+2{{redeclaration of 'MemTmplRedecl::ConstexprField' cannot add 'dllexport' attribute}}
#endif
template<typename T> __declspec(dllexport) constexpr int MemTmplRedecl::ConstexprField;
#endif // __has_feature(cxx_variable_templates)
struct MemFunTmpl {
template<typename T> void normalDef() {}
template<typename T> __declspec(dllexport) void exportedNormal() {}
template<typename T> static void staticDef() {}
template<typename T> __declspec(dllexport) static void exportedStatic() {}
};
// Export implicit instantiation of an exported member function template.
void useMemFunTmpl() {
MemFunTmpl().exportedNormal<ImplicitInst_Exported>();
MemFunTmpl().exportedStatic<ImplicitInst_Exported>();
}
// Export explicit instantiation declaration of an exported member function
// template.
extern template void MemFunTmpl::exportedNormal<ExplicitDecl_Exported>();
template void MemFunTmpl::exportedNormal<ExplicitDecl_Exported>();
extern template void MemFunTmpl::exportedStatic<ExplicitDecl_Exported>();
template void MemFunTmpl::exportedStatic<ExplicitDecl_Exported>();
// Export explicit instantiation definition of an exported member function
// template.
template void MemFunTmpl::exportedNormal<ExplicitInst_Exported>();
template void MemFunTmpl::exportedStatic<ExplicitInst_Exported>();
// Export specialization of an exported member function template.
template<> __declspec(dllexport) void MemFunTmpl::exportedNormal<ExplicitSpec_Exported>();
template<> __declspec(dllexport) void MemFunTmpl::exportedNormal<ExplicitSpec_Def_Exported>() {}
template<> __declspec(dllexport) inline void MemFunTmpl::exportedNormal<ExplicitSpec_InlineDef_Exported>() {}
template<> __declspec(dllexport) void MemFunTmpl::exportedStatic<ExplicitSpec_Exported>();
template<> __declspec(dllexport) void MemFunTmpl::exportedStatic<ExplicitSpec_Def_Exported>() {}
template<> __declspec(dllexport) inline void MemFunTmpl::exportedStatic<ExplicitSpec_InlineDef_Exported>() {}
// Not exporting specialization of an exported member function template without
// explicit dllexport.
template<> void MemFunTmpl::exportedNormal<ExplicitSpec_NotExported>() {}
template<> void MemFunTmpl::exportedStatic<ExplicitSpec_NotExported>() {}
// Export explicit instantiation declaration of a non-exported member function
// template.
extern template __declspec(dllexport) void MemFunTmpl::normalDef<ExplicitDecl_Exported>();
template __declspec(dllexport) void MemFunTmpl::normalDef<ExplicitDecl_Exported>();
extern template __declspec(dllexport) void MemFunTmpl::staticDef<ExplicitDecl_Exported>();
template __declspec(dllexport) void MemFunTmpl::staticDef<ExplicitDecl_Exported>();
// Export explicit instantiation definition of a non-exported member function
// template.
template __declspec(dllexport) void MemFunTmpl::normalDef<ExplicitInst_Exported>();
template __declspec(dllexport) void MemFunTmpl::staticDef<ExplicitInst_Exported>();
// Export specialization of a non-exported member function template.
template<> __declspec(dllexport) void MemFunTmpl::normalDef<ExplicitSpec_Exported>();
template<> __declspec(dllexport) void MemFunTmpl::normalDef<ExplicitSpec_Def_Exported>() {}
template<> __declspec(dllexport) inline void MemFunTmpl::normalDef<ExplicitSpec_InlineDef_Exported>() {}
template<> __declspec(dllexport) void MemFunTmpl::staticDef<ExplicitSpec_Exported>();
template<> __declspec(dllexport) void MemFunTmpl::staticDef<ExplicitSpec_Def_Exported>() {}
template<> __declspec(dllexport) inline void MemFunTmpl::staticDef<ExplicitSpec_InlineDef_Exported>() {}
#if __has_feature(cxx_variable_templates)
struct MemVarTmpl {
template<typename T> static const int StaticVar = 1;
template<typename T> __declspec(dllexport) static const int ExportedStaticVar = 1;
};
template<typename T> const int MemVarTmpl::StaticVar;
template<typename T> const int MemVarTmpl::ExportedStaticVar;
// Export implicit instantiation of an exported member variable template.
int useMemVarTmpl() { return MemVarTmpl::ExportedStaticVar<ImplicitInst_Exported>; }
// Export explicit instantiation declaration of an exported member variable
// template.
extern template const int MemVarTmpl::ExportedStaticVar<ExplicitDecl_Exported>;
template const int MemVarTmpl::ExportedStaticVar<ExplicitDecl_Exported>;
// Export explicit instantiation definition of an exported member variable
// template.
template const int MemVarTmpl::ExportedStaticVar<ExplicitInst_Exported>;
// Export specialization of an exported member variable template.
template<> __declspec(dllexport) const int MemVarTmpl::ExportedStaticVar<ExplicitSpec_Exported>;
template<> __declspec(dllexport) const int MemVarTmpl::ExportedStaticVar<ExplicitSpec_Def_Exported> = 1;
// Not exporting specialization of an exported member variable template without
// explicit dllexport.
template<> const int MemVarTmpl::ExportedStaticVar<ExplicitSpec_NotExported>;
// Export explicit instantiation declaration of a non-exported member variable
// template.
extern template __declspec(dllexport) const int MemVarTmpl::StaticVar<ExplicitDecl_Exported>;
template __declspec(dllexport) const int MemVarTmpl::StaticVar<ExplicitDecl_Exported>;
// Export explicit instantiation definition of a non-exported member variable
// template.
template __declspec(dllexport) const int MemVarTmpl::StaticVar<ExplicitInst_Exported>;
// Export specialization of a non-exported member variable template.
template<> __declspec(dllexport) const int MemVarTmpl::StaticVar<ExplicitSpec_Exported>;
template<> __declspec(dllexport) const int MemVarTmpl::StaticVar<ExplicitSpec_Def_Exported> = 1;
#endif // __has_feature(cxx_variable_templates)
//===----------------------------------------------------------------------===//
// Class template members
//===----------------------------------------------------------------------===//
// Export individual members of a class template.
template<typename T>
struct ExportClassTmplMembers {
__declspec(dllexport) void normalDecl();
__declspec(dllexport) void normalDef();
__declspec(dllexport) void normalInclass() {}
__declspec(dllexport) void normalInlineDef();
__declspec(dllexport) inline void normalInlineDecl();
__declspec(dllexport) virtual void virtualDecl();
__declspec(dllexport) virtual void virtualDef();
__declspec(dllexport) virtual void virtualInclass() {}
__declspec(dllexport) virtual void virtualInlineDef();
__declspec(dllexport) virtual inline void virtualInlineDecl();
__declspec(dllexport) static void staticDecl();
__declspec(dllexport) static void staticDef();
__declspec(dllexport) static void staticInclass() {}
__declspec(dllexport) static void staticInlineDef();
__declspec(dllexport) static inline void staticInlineDecl();
protected:
__declspec(dllexport) void protectedDef();
private:
__declspec(dllexport) void privateDef();
public:
__declspec(dllexport) int Field; // expected-warning{{'dllexport' attribute only applies to}}
__declspec(dllexport) static int StaticField;
__declspec(dllexport) static int StaticFieldDef;
__declspec(dllexport) static const int StaticConstField;
__declspec(dllexport) static const int StaticConstFieldDef;
__declspec(dllexport) static const int StaticConstFieldEqualInit = 1;
__declspec(dllexport) static const int StaticConstFieldBraceInit{1};
__declspec(dllexport) constexpr static int ConstexprField = 1;
__declspec(dllexport) constexpr static int ConstexprFieldDef = 1;
};
template<typename T> void ExportClassTmplMembers<T>::normalDef() {}
template<typename T> inline void ExportClassTmplMembers<T>::normalInlineDef() {}
template<typename T> void ExportClassTmplMembers<T>::normalInlineDecl() {}
template<typename T> void ExportClassTmplMembers<T>::virtualDef() {}
template<typename T> inline void ExportClassTmplMembers<T>::virtualInlineDef() {}
template<typename T> void ExportClassTmplMembers<T>::virtualInlineDecl() {}
template<typename T> void ExportClassTmplMembers<T>::staticDef() {}
template<typename T> inline void ExportClassTmplMembers<T>::staticInlineDef() {}
template<typename T> void ExportClassTmplMembers<T>::staticInlineDecl() {}
template<typename T> void ExportClassTmplMembers<T>::protectedDef() {}
template<typename T> void ExportClassTmplMembers<T>::privateDef() {}
template<typename T> int ExportClassTmplMembers<T>::StaticFieldDef;
template<typename T> const int ExportClassTmplMembers<T>::StaticConstFieldDef = 1;
template<typename T> constexpr int ExportClassTmplMembers<T>::ConstexprFieldDef;
template struct ExportClassTmplMembers<ImplicitInst_Exported>;
// Redeclarations cannot add dllexport.
template<typename T>
struct CTMR /*ClassTmplMemberRedecl*/ {
void normalDef(); // expected-note{{previous declaration is here}}
void normalInlineDef(); // expected-note{{previous declaration is here}}
inline void normalInlineDecl(); // expected-note{{previous declaration is here}}
virtual void virtualDef(); // expected-note{{previous declaration is here}}
virtual void virtualInlineDef(); // expected-note{{previous declaration is here}}
virtual inline void virtualInlineDecl(); // expected-note{{previous declaration is here}}
static void staticDef(); // expected-note{{previous declaration is here}}
static void staticInlineDef(); // expected-note{{previous declaration is here}}
static inline void staticInlineDecl(); // expected-note{{previous declaration is here}}
static int StaticField; // expected-note{{previous declaration is here}}
static const int StaticConstField; // expected-note{{previous declaration is here}}
constexpr static int ConstexprField = 1; // expected-note-re{{previous {{(definition|declaration)}} is here}}
};
template<typename T> __declspec(dllexport) void CTMR<T>::normalDef() {} // expected-error{{redeclaration of 'CTMR::normalDef' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) inline void CTMR<T>::normalInlineDef() {} // expected-error{{redeclaration of 'CTMR::normalInlineDef' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) void CTMR<T>::normalInlineDecl() {} // expected-error{{redeclaration of 'CTMR::normalInlineDecl' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) void CTMR<T>::virtualDef() {} // expected-error{{redeclaration of 'CTMR::virtualDef' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) inline void CTMR<T>::virtualInlineDef() {} // expected-error{{redeclaration of 'CTMR::virtualInlineDef' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) void CTMR<T>::virtualInlineDecl() {} // expected-error{{redeclaration of 'CTMR::virtualInlineDecl' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) void CTMR<T>::staticDef() {} // expected-error{{redeclaration of 'CTMR::staticDef' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) inline void CTMR<T>::staticInlineDef() {} // expected-error{{redeclaration of 'CTMR::staticInlineDef' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) void CTMR<T>::staticInlineDecl() {} // expected-error{{redeclaration of 'CTMR::staticInlineDecl' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) int CTMR<T>::StaticField = 1; // expected-error{{redeclaration of 'CTMR::StaticField' cannot add 'dllexport' attribute}}
template<typename T> __declspec(dllexport) const int CTMR<T>::StaticConstField = 1; // expected-error{{redeclaration of 'CTMR::StaticConstField' cannot add 'dllexport' attribute}}
#ifdef MS
// expected-warning@+4{{attribute declaration must precede definition}}
#else
// expected-error@+2{{redeclaration of 'CTMR::ConstexprField' cannot add 'dllexport' attribute}}
#endif
template<typename T> __declspec(dllexport) constexpr int CTMR<T>::ConstexprField;
// MSVC exports explicit specialization of exported class template member
// function, and errors on such definitions. MinGW does not treat them as
// dllexport.
#if !defined(GNU)
// expected-error@+2{{attribute 'dllexport' cannot be applied to a deleted function}}
#endif
template <> void ExportClassTmplMembers<int>::normalDecl() = delete;
//===----------------------------------------------------------------------===//
// Class template member templates
//===----------------------------------------------------------------------===//
template<typename T>
struct ExportClsTmplMemTmpl {
template<typename U> __declspec(dllexport) void normalDecl();
template<typename U> __declspec(dllexport) void normalDef();
template<typename U> __declspec(dllexport) void normalInclass() {}
template<typename U> __declspec(dllexport) void normalInlineDef();
template<typename U> __declspec(dllexport) inline void normalInlineDecl();
template<typename U> __declspec(dllexport) static void staticDecl();
template<typename U> __declspec(dllexport) static void staticDef();
template<typename U> __declspec(dllexport) static void staticInclass() {}
template<typename U> __declspec(dllexport) static void staticInlineDef();
template<typename U> __declspec(dllexport) static inline void staticInlineDecl();
#if __has_feature(cxx_variable_templates)
template<typename U> __declspec(dllexport) static int StaticField;
template<typename U> __declspec(dllexport) static int StaticFieldDef;
template<typename U> __declspec(dllexport) static const int StaticConstField;
template<typename U> __declspec(dllexport) static const int StaticConstFieldDef;
template<typename U> __declspec(dllexport) static const int StaticConstFieldEqualInit = 1;
template<typename U> __declspec(dllexport) static const int StaticConstFieldBraceInit{1};
template<typename U> __declspec(dllexport) constexpr static int ConstexprField = 1;
template<typename U> __declspec(dllexport) constexpr static int ConstexprFieldDef = 1;
#endif // __has_feature(cxx_variable_templates)
};
template<typename T> template<typename U> void ExportClsTmplMemTmpl<T>::normalDef() {}
template<typename T> template<typename U> inline void ExportClsTmplMemTmpl<T>::normalInlineDef() {}
template<typename T> template<typename U> void ExportClsTmplMemTmpl<T>::normalInlineDecl() {}
template<typename T> template<typename U> void ExportClsTmplMemTmpl<T>::staticDef() {}
template<typename T> template<typename U> inline void ExportClsTmplMemTmpl<T>::staticInlineDef() {}
template<typename T> template<typename U> void ExportClsTmplMemTmpl<T>::staticInlineDecl() {}
#if __has_feature(cxx_variable_templates)
template<typename T> template<typename U> int ExportClsTmplMemTmpl<T>::StaticFieldDef;
template<typename T> template<typename U> const int ExportClsTmplMemTmpl<T>::StaticConstFieldDef = 1;
template<typename T> template<typename U> constexpr int ExportClsTmplMemTmpl<T>::ConstexprFieldDef;
#endif // __has_feature(cxx_variable_templates)
// Redeclarations cannot add dllexport.
template<typename T>
struct CTMTR /*ClassTmplMemberTmplRedecl*/ {
template<typename U> void normalDef(); // expected-note{{previous declaration is here}}
template<typename U> void normalInlineDef(); // expected-note{{previous declaration is here}}
template<typename U> inline void normalInlineDecl(); // expected-note{{previous declaration is here}}
template<typename U> static void staticDef(); // expected-note{{previous declaration is here}}
template<typename U> static void staticInlineDef(); // expected-note{{previous declaration is here}}
template<typename U> static inline void staticInlineDecl(); // expected-note{{previous declaration is here}}
#if __has_feature(cxx_variable_templates)
template<typename U> static int StaticField; // expected-note{{previous declaration is here}}
template<typename U> static const int StaticConstField; // expected-note{{previous declaration is here}}
template<typename U> constexpr static int ConstexprField = 1; // expected-note-re{{previous {{(declaration|definition)}} is here}}
#endif // __has_feature(cxx_variable_templates)
};
template<typename T> template<typename U> __declspec(dllexport) void CTMTR<T>::normalDef() {} // expected-error{{redeclaration of 'CTMTR::normalDef' cannot add 'dllexport' attribute}}
template<typename T> template<typename U> __declspec(dllexport) inline void CTMTR<T>::normalInlineDef() {} // expected-error{{redeclaration of 'CTMTR::normalInlineDef' cannot add 'dllexport' attribute}}
template<typename T> template<typename U> __declspec(dllexport) void CTMTR<T>::normalInlineDecl() {} // expected-error{{redeclaration of 'CTMTR::normalInlineDecl' cannot add 'dllexport' attribute}}
template<typename T> template<typename U> __declspec(dllexport) void CTMTR<T>::staticDef() {} // expected-error{{redeclaration of 'CTMTR::staticDef' cannot add 'dllexport' attribute}}
template<typename T> template<typename U> __declspec(dllexport) inline void CTMTR<T>::staticInlineDef() {} // expected-error{{redeclaration of 'CTMTR::staticInlineDef' cannot add 'dllexport' attribute}}
template<typename T> template<typename U> __declspec(dllexport) void CTMTR<T>::staticInlineDecl() {} // expected-error{{redeclaration of 'CTMTR::staticInlineDecl' cannot add 'dllexport' attribute}}
#if __has_feature(cxx_variable_templates)
template<typename T> template<typename U> __declspec(dllexport) int CTMTR<T>::StaticField = 1; // expected-error{{redeclaration of 'CTMTR::StaticField' cannot add 'dllexport' attribute}}
template<typename T> template<typename U> __declspec(dllexport) const int CTMTR<T>::StaticConstField = 1; // expected-error{{redeclaration of 'CTMTR::StaticConstField' cannot add 'dllexport' attribute}}
#ifdef MS
// expected-warning@+4{{attribute declaration must precede definition}}
#else
// expected-error@+2{{redeclaration of 'CTMTR::ConstexprField' cannot add 'dllexport' attribute}}
#endif
template<typename T> template<typename U> __declspec(dllexport) constexpr int CTMTR<T>::ConstexprField;
#endif // __has_feature(cxx_variable_templates)
// FIXME: Precedence rules seem to be different for classes.
//===----------------------------------------------------------------------===//
// Lambdas
//===----------------------------------------------------------------------===//
// The MS ABI doesn't provide a stable mangling for lambdas, so they can't be imported or exported.
#if defined(MS) || defined (WI) || defined(PS)
// expected-error@+2{{lambda cannot be declared 'dllexport'}}
#endif
auto Lambda = []() __declspec(dllexport) -> bool { return true; };
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