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llvm-project/clang/test/SemaCXX/dllimport.cpp
Hans Wennborg dd96db2c03 Allow adding dll attributes on certain redecls with a warning if the decl hasn't been used yet (PR20746) 
This shouldn't really be allowed, but it comes up in real code (see PR). As
long as the decl hasn't been used there's no technical difficulty in supporting
it, so downgrade the error to a warning.

Differential Revision: http://reviews.llvm.org/D5087

llvm-svn: 216619
2014-08-27 21:27:40 +00:00

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// RUN: %clang_cc1 -triple i686-win32 -fsyntax-only -verify -std=c++11 -Wunsupported-dll-base-class-template -DMS %s
// RUN: %clang_cc1 -triple x86_64-win32 -fsyntax-only -verify -std=c++1y -Wunsupported-dll-base-class-template -DMS %s
// RUN: %clang_cc1 -triple i686-mingw32 -fsyntax-only -verify -std=c++1y -Wunsupported-dll-base-class-template %s
// RUN: %clang_cc1 -triple x86_64-mingw32 -fsyntax-only -verify -std=c++11 -Wunsupported-dll-base-class-template %s
// Helper structs to make templates more expressive.
struct ImplicitInst_Imported {};
struct ExplicitDecl_Imported {};
struct ExplicitInst_Imported {};
struct ExplicitSpec_Imported {};
struct ExplicitSpec_Def_Imported {};
struct ExplicitSpec_InlineDef_Imported {};
struct ExplicitSpec_NotImported {};
namespace { struct Internal {}; }
// Invalid usage.
__declspec(dllimport) typedef int typedef1; // expected-warning{{'dllimport' attribute only applies to variables, functions and classes}}
typedef __declspec(dllimport) int typedef2; // expected-warning{{'dllimport' attribute only applies to variables, functions and classes}}
typedef int __declspec(dllimport) typedef3; // expected-warning{{'dllimport' attribute only applies to variables, functions and classes}}
typedef __declspec(dllimport) void (*FunTy)(); // expected-warning{{'dllimport' attribute only applies to variables, functions and classes}}
enum __declspec(dllimport) Enum {}; // expected-warning{{'dllimport' attribute only applies to variables, functions and classes}}
#if __has_feature(cxx_strong_enums)
enum class __declspec(dllimport) EnumClass {}; // expected-warning{{'dllimport' attribute only applies to variables, functions and classes}}
#endif
//===----------------------------------------------------------------------===//
// Globals
//===----------------------------------------------------------------------===//
// Import declaration.
__declspec(dllimport) extern int ExternGlobalDecl;
// dllimport implies a declaration.
__declspec(dllimport) int GlobalDecl;
int **__attribute__((dllimport))* GlobalDeclChunkAttr;
int GlobalDeclAttr __attribute__((dllimport));
// Not allowed on definitions.
__declspec(dllimport) extern int ExternGlobalInit = 1; // expected-error{{definition of dllimport data}}
__declspec(dllimport) int GlobalInit1 = 1; // expected-error{{definition of dllimport data}}
int __declspec(dllimport) GlobalInit2 = 1; // expected-error{{definition of dllimport data}}
// Declare, then reject definition.
__declspec(dllimport) extern int ExternGlobalDeclInit; // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
int ExternGlobalDeclInit = 1; // expected-warning{{'ExternGlobalDeclInit' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
__declspec(dllimport) int GlobalDeclInit; // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
int GlobalDeclInit = 1; // expected-warning{{'GlobalDeclInit' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
int *__attribute__((dllimport)) GlobalDeclChunkAttrInit; // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
int *GlobalDeclChunkAttrInit = 0; // expected-warning{{'GlobalDeclChunkAttrInit' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
int GlobalDeclAttrInit __attribute__((dllimport)); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
int GlobalDeclAttrInit = 1; // expected-warning{{'GlobalDeclAttrInit' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
// Redeclarations
__declspec(dllimport) extern int GlobalRedecl1;
__declspec(dllimport) extern int GlobalRedecl1;
__declspec(dllimport) int GlobalRedecl2a;
__declspec(dllimport) int GlobalRedecl2a;
int *__attribute__((dllimport)) GlobalRedecl2b;
int *__attribute__((dllimport)) GlobalRedecl2b;
int GlobalRedecl2c __attribute__((dllimport));
int GlobalRedecl2c __attribute__((dllimport));
// NB: MSVC issues a warning and makes GlobalRedecl3 dllexport. We follow GCC
// and drop the dllimport with a warning.
__declspec(dllimport) extern int GlobalRedecl3; // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
extern int GlobalRedecl3; // expected-warning{{'GlobalRedecl3' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
extern int GlobalRedecl4; // expected-note{{previous declaration is here}}
__declspec(dllimport) extern int GlobalRedecl4; // expected-warning{{redeclaration of 'GlobalRedecl4' should not add 'dllimport' attribute}}
// External linkage is required.
__declspec(dllimport) static int StaticGlobal; // expected-error{{'StaticGlobal' must have external linkage when declared 'dllimport'}}
__declspec(dllimport) Internal InternalTypeGlobal; // expected-error{{'InternalTypeGlobal' must have external linkage when declared 'dllimport'}}
namespace { __declspec(dllimport) int InternalGlobal; } // expected-error{{'(anonymous namespace)::InternalGlobal' must have external linkage when declared 'dllimport'}}
namespace ns { __declspec(dllimport) int ExternalGlobal; }
__declspec(dllimport) auto InternalAutoTypeGlobal = Internal(); // expected-error{{'InternalAutoTypeGlobal' must have external linkage when declared 'dllimport'}}
// expected-error@-1{{definition of dllimport data}}
// Import in local scope.
__declspec(dllimport) float LocalRedecl1; // expected-note{{previous definition is here}}
__declspec(dllimport) float LocalRedecl2; // expected-note{{previous definition is here}}
__declspec(dllimport) float LocalRedecl3; // expected-note{{previous definition is here}}
void functionScope() {
__declspec(dllimport) int LocalRedecl1; // expected-error{{redefinition of 'LocalRedecl1' with a different type: 'int' vs 'float'}}
int *__attribute__((dllimport)) LocalRedecl2; // expected-error{{redefinition of 'LocalRedecl2' with a different type: 'int *' vs 'float'}}
int LocalRedecl3 __attribute__((dllimport)); // expected-error{{redefinition of 'LocalRedecl3' with a different type: 'int' vs 'float'}}
__declspec(dllimport) int LocalVarDecl;
__declspec(dllimport) int LocalVarDef = 1; // expected-error{{definition of dllimport data}}
__declspec(dllimport) extern int ExternLocalVarDecl;
__declspec(dllimport) extern int ExternLocalVarDef = 1; // expected-error{{definition of dllimport data}}
__declspec(dllimport) static int StaticLocalVar; // expected-error{{'StaticLocalVar' must have external linkage when declared 'dllimport'}}
}
//===----------------------------------------------------------------------===//
// Variable templates
//===----------------------------------------------------------------------===//
#if __has_feature(cxx_variable_templates)
// Import declaration.
template<typename T> __declspec(dllimport) extern int ExternVarTmplDecl;
// dllimport implies a declaration.
template<typename T> __declspec(dllimport) int VarTmplDecl;
// Not allowed on definitions.
template<typename T> __declspec(dllimport) extern int ExternVarTmplInit = 1; // expected-error{{definition of dllimport data}}
template<typename T> __declspec(dllimport) int VarTmplInit1 = 1; // expected-error{{definition of dllimport data}}
template<typename T> int __declspec(dllimport) VarTmplInit2 = 1; // expected-error{{definition of dllimport data}}
// Declare, then reject definition.
template<typename T> __declspec(dllimport) extern int ExternVarTmplDeclInit; // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename T> int ExternVarTmplDeclInit = 1; // expected-warning{{'ExternVarTmplDeclInit' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> __declspec(dllimport) int VarTmplDeclInit; // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename T> int VarTmplDeclInit = 1; // expected-warning{{'VarTmplDeclInit' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
// Redeclarations
template<typename T> __declspec(dllimport) extern int VarTmplRedecl1;
template<typename T> __declspec(dllimport) extern int VarTmplRedecl1;
template<typename T> __declspec(dllimport) int VarTmplRedecl2;
template<typename T> __declspec(dllimport) int VarTmplRedecl2;
template<typename T> __declspec(dllimport) extern int VarTmplRedecl3; // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename T> extern int VarTmplRedecl3; // expected-warning{{'VarTmplRedecl3' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> extern int VarTmplRedecl4; // expected-note{{previous declaration is here}}
template<typename T> __declspec(dllimport) extern int VarTmplRedecl4; // expected-error{{redeclaration of 'VarTmplRedecl4' cannot add 'dllimport' attribute}}
// External linkage is required.
template<typename T> __declspec(dllimport) static int StaticVarTmpl; // expected-error{{'StaticVarTmpl' must have external linkage when declared 'dllimport'}}
template<typename T> __declspec(dllimport) Internal InternalTypeVarTmpl; // expected-error{{'InternalTypeVarTmpl' must have external linkage when declared 'dllimport'}}
namespace { template<typename T> __declspec(dllimport) int InternalVarTmpl; } // expected-error{{'(anonymous namespace)::InternalVarTmpl' must have external linkage when declared 'dllimport'}}
namespace ns { template<typename T> __declspec(dllimport) int ExternalVarTmpl; }
template<typename T> __declspec(dllimport) auto InternalAutoTypeVarTmpl = Internal(); // expected-error{{definition of dllimport data}} // expected-error{{'InternalAutoTypeVarTmpl' must have external linkage when declared 'dllimport'}}
template<typename T> int VarTmpl;
template<typename T> __declspec(dllimport) int ImportedVarTmpl;
// Import implicit instantiation of an imported variable template.
int useVarTmpl() { return ImportedVarTmpl<ImplicitInst_Imported>; }
// Import explicit instantiation declaration of an imported variable template.
extern template int ImportedVarTmpl<ExplicitDecl_Imported>;
// An explicit instantiation definition of an imported variable template cannot
// be imported because the template must be defined which is illegal.
// Import specialization of an imported variable template.
template<> __declspec(dllimport) int ImportedVarTmpl<ExplicitSpec_Imported>;
template<> __declspec(dllimport) int ImportedVarTmpl<ExplicitSpec_Def_Imported> = 1; // expected-error{{definition of dllimport data}}
// Not importing specialization of an imported variable template without
// explicit dllimport.
template<> int ImportedVarTmpl<ExplicitSpec_NotImported>;
// Import explicit instantiation declaration of a non-imported variable template.
extern template __declspec(dllimport) int VarTmpl<ExplicitDecl_Imported>;
// Import explicit instantiation definition of a non-imported variable template.
template __declspec(dllimport) int VarTmpl<ExplicitInst_Imported>;
// Import specialization of a non-imported variable template.
template<> __declspec(dllimport) int VarTmpl<ExplicitSpec_Imported>;
template<> __declspec(dllimport) int VarTmpl<ExplicitSpec_Def_Imported> = 1; // expected-error{{definition of dllimport data}}
#endif // __has_feature(cxx_variable_templates)
//===----------------------------------------------------------------------===//
// Functions
//===----------------------------------------------------------------------===//
// Import function declaration. Check different placements.
__attribute__((dllimport)) void decl1A(); // Sanity check with __attribute__
__declspec(dllimport) void decl1B();
void __attribute__((dllimport)) decl2A();
void __declspec(dllimport) decl2B();
// Not allowed on function definitions.
__declspec(dllimport) void def() {} // expected-error{{dllimport cannot be applied to non-inline function definition}}
// extern "C"
extern "C" __declspec(dllimport) void externC();
// Import inline function.
__declspec(dllimport) inline void inlineFunc1() {}
inline void __attribute__((dllimport)) inlineFunc2() {}
__declspec(dllimport) inline void inlineDecl();
void inlineDecl() {}
__declspec(dllimport) void inlineDef();
inline void inlineDef() {}
// Redeclarations
__declspec(dllimport) void redecl1();
__declspec(dllimport) void redecl1();
// NB: MSVC issues a warning and makes redecl2/redecl3 dllexport. We follow GCC
// and drop the dllimport with a warning.
__declspec(dllimport) void redecl2(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
void redecl2(); // expected-warning{{'redecl2' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
__declspec(dllimport) void redecl3(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
void redecl3() {} // expected-warning{{'redecl3' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
void redecl4(); // expected-note{{previous declaration is here}}
__declspec(dllimport) void redecl4(); // expected-warning{{redeclaration of 'redecl4' should not add 'dllimport' attribute}}
void redecl5(); // expected-note{{previous declaration is here}}
__declspec(dllimport) inline void redecl5() {} // expected-warning{{redeclaration of 'redecl5' should not add 'dllimport' attribute}}
// Friend functions
struct FuncFriend {
friend __declspec(dllimport) void friend1();
friend __declspec(dllimport) void friend2(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
friend __declspec(dllimport) void friend3(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
friend void friend4(); // expected-note{{previous declaration is here}}
friend void friend5(); // expected-note{{previous declaration is here}}
};
__declspec(dllimport) void friend1();
void friend2(); // expected-warning{{'friend2' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
void friend3() {} // expected-warning{{'friend3' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
__declspec(dllimport) void friend4(); // expected-warning{{redeclaration of 'friend4' should not add 'dllimport' attribute}}
__declspec(dllimport) inline void friend5() {} // expected-warning{{redeclaration of 'friend5' should not add 'dllimport' attribute}}
void __declspec(dllimport) friend6(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
void __declspec(dllimport) friend7();
struct FuncFriend2 {
friend void friend6(); // expected-warning{{'friend6' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
friend void ::friend7();
};
// Implicit declarations can be redeclared with dllimport.
__declspec(dllimport) void* operator new(__SIZE_TYPE__ n);
// External linkage is required.
__declspec(dllimport) static int staticFunc(); // expected-error{{'staticFunc' must have external linkage when declared 'dllimport'}}
__declspec(dllimport) Internal internalRetFunc(); // expected-error{{'internalRetFunc' must have external linkage when declared 'dllimport'}}
namespace { __declspec(dllimport) void internalFunc(); } // expected-error{{'(anonymous namespace)::internalFunc' must have external linkage when declared 'dllimport'}}
namespace ns { __declspec(dllimport) void externalFunc(); }
// Import deleted functions.
// FIXME: Deleted functions are definitions so a missing inline is diagnosed
// here which is irrelevant. But because the delete keyword is parsed later
// there is currently no straight-forward way to avoid this diagnostic.
__declspec(dllimport) void deletedFunc() = delete; // expected-error{{attribute 'dllimport' cannot be applied to a deleted function}} expected-error{{dllimport cannot be applied to non-inline function definition}}
__declspec(dllimport) inline void deletedInlineFunc() = delete; // expected-error{{attribute 'dllimport' cannot be applied to a deleted function}}
//===----------------------------------------------------------------------===//
// Function templates
//===----------------------------------------------------------------------===//
// Import function template declaration. Check different placements.
template<typename T> __declspec(dllimport) void funcTmplDecl1();
template<typename T> void __declspec(dllimport) funcTmplDecl2();
// Import function template definition.
template<typename T> __declspec(dllimport) void funcTmplDef() {} // expected-error{{dllimport cannot be applied to non-inline function definition}}
// Import inline function template.
template<typename T> __declspec(dllimport) inline void inlineFuncTmpl1() {}
template<typename T> inline void __attribute__((dllimport)) inlineFuncTmpl2() {}
template<typename T> __declspec(dllimport) inline void inlineFuncTmplDecl();
template<typename T> void inlineFuncTmplDecl() {}
template<typename T> __declspec(dllimport) void inlineFuncTmplDef();
template<typename T> inline void inlineFuncTmplDef() {}
// Redeclarations
template<typename T> __declspec(dllimport) void funcTmplRedecl1();
template<typename T> __declspec(dllimport) void funcTmplRedecl1();
template<typename T> __declspec(dllimport) void funcTmplRedecl2(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename T> void funcTmplRedecl2(); // expected-warning{{'funcTmplRedecl2' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> __declspec(dllimport) void funcTmplRedecl3(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename T> void funcTmplRedecl3() {} // expected-warning{{'funcTmplRedecl3' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> void funcTmplRedecl4(); // expected-note{{previous declaration is here}}
template<typename T> __declspec(dllimport) void funcTmplRedecl4(); // expected-error{{redeclaration of 'funcTmplRedecl4' cannot add 'dllimport' attribute}}
template<typename T> void funcTmplRedecl5(); // expected-note{{previous declaration is here}}
template<typename T> __declspec(dllimport) inline void funcTmplRedecl5() {} // expected-error{{redeclaration of 'funcTmplRedecl5' cannot add 'dllimport' attribute}}
// Function template friends
struct FuncTmplFriend {
template<typename T> friend __declspec(dllimport) void funcTmplFriend1();
template<typename T> friend __declspec(dllimport) void funcTmplFriend2(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename T> friend __declspec(dllimport) void funcTmplFriend3(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename T> friend void funcTmplFriend4(); // expected-note{{previous declaration is here}}
template<typename T> friend __declspec(dllimport) inline void funcTmplFriend5();
};
template<typename T> __declspec(dllimport) void funcTmplFriend1();
template<typename T> void funcTmplFriend2(); // expected-warning{{'funcTmplFriend2' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> void funcTmplFriend3() {} // expected-warning{{'funcTmplFriend3' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> __declspec(dllimport) void funcTmplFriend4(); // expected-error{{redeclaration of 'funcTmplFriend4' cannot add 'dllimport' attribute}}
template<typename T> inline void funcTmplFriend5() {}
// External linkage is required.
template<typename T> __declspec(dllimport) static int staticFuncTmpl(); // expected-error{{'staticFuncTmpl' must have external linkage when declared 'dllimport'}}
template<typename T> __declspec(dllimport) Internal internalRetFuncTmpl(); // expected-error{{'internalRetFuncTmpl' must have external linkage when declared 'dllimport'}}
namespace { template<typename T> __declspec(dllimport) void internalFuncTmpl(); } // expected-error{{'(anonymous namespace)::internalFuncTmpl' must have external linkage when declared 'dllimport'}}
namespace ns { template<typename T> __declspec(dllimport) void externalFuncTmpl(); }
template<typename T> void funcTmpl() {}
template<typename T> inline void inlineFuncTmpl() {}
template<typename T> __declspec(dllimport) void importedFuncTmplDecl();
template<typename T> __declspec(dllimport) inline void importedFuncTmpl() {}
// Import implicit instantiation of an imported function template.
void useFunTmplDecl() { importedFuncTmplDecl<ImplicitInst_Imported>(); }
void useFunTmplDef() { importedFuncTmpl<ImplicitInst_Imported>(); }
// Import explicit instantiation declaration of an imported function template.
extern template void importedFuncTmpl<ExplicitDecl_Imported>();
// Import explicit instantiation definition of an imported function template.
// NB: MSVC fails this instantiation without explicit dllimport which is most
// likely a bug because an implicit instantiation is accepted.
template void importedFuncTmpl<ExplicitInst_Imported>();
// Import specialization of an imported function template. A definition must be
// declared inline.
template<> __declspec(dllimport) void importedFuncTmpl<ExplicitSpec_Imported>();
template<> __declspec(dllimport) void importedFuncTmpl<ExplicitSpec_Def_Imported>() {} // expected-error{{dllimport cannot be applied to non-inline function definition}}
template<> __declspec(dllimport) inline void importedFuncTmpl<ExplicitSpec_InlineDef_Imported>() {}
// Not importing specialization of an imported function template without
// explicit dllimport.
template<> void importedFuncTmpl<ExplicitSpec_NotImported>() {}
// Import explicit instantiation declaration of a non-imported function template.
extern template __declspec(dllimport) void funcTmpl<ExplicitDecl_Imported>();
extern template __declspec(dllimport) void inlineFuncTmpl<ExplicitDecl_Imported>();
// Import explicit instantiation definition of a non-imported function template.
template __declspec(dllimport) void funcTmpl<ExplicitInst_Imported>();
template __declspec(dllimport) void inlineFuncTmpl<ExplicitInst_Imported>();
// Import specialization of a non-imported function template. A definition must
// be declared inline.
template<> __declspec(dllimport) void funcTmpl<ExplicitSpec_Imported>();
template<> __declspec(dllimport) void funcTmpl<ExplicitSpec_Def_Imported>() {} // expected-error{{dllimport cannot be applied to non-inline function definition}}
template<> __declspec(dllimport) inline void funcTmpl<ExplicitSpec_InlineDef_Imported>() {}
//===----------------------------------------------------------------------===//
// Class members
//===----------------------------------------------------------------------===//
// Import individual members of a class.
struct ImportMembers {
struct Nested {
__declspec(dllimport) void normalDecl();
__declspec(dllimport) void normalDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
};
__declspec(dllimport) void normalDecl();
__declspec(dllimport) void normalDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
__declspec(dllimport) void normalInclass() {}
__declspec(dllimport) void normalInlineDef();
__declspec(dllimport) inline void normalInlineDecl();
__declspec(dllimport) virtual void virtualDecl();
__declspec(dllimport) virtual void virtualDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
__declspec(dllimport) virtual void virtualInclass() {}
__declspec(dllimport) virtual void virtualInlineDef();
__declspec(dllimport) virtual inline void virtualInlineDecl();
__declspec(dllimport) static void staticDecl();
__declspec(dllimport) static void staticDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
__declspec(dllimport) static void staticInclass() {}
__declspec(dllimport) static void staticInlineDef();
__declspec(dllimport) static inline void staticInlineDecl();
protected:
__declspec(dllimport) void protectedDecl();
private:
__declspec(dllimport) void privateDecl();
public:
__declspec(dllimport) int Field; // expected-warning{{'dllimport' attribute only applies to variables, functions and classes}}
__declspec(dllimport) static int StaticField;
__declspec(dllimport) static int StaticFieldDef; // expected-note{{attribute is here}}
__declspec(dllimport) static const int StaticConstField;
__declspec(dllimport) static const int StaticConstFieldDef; // expected-note{{attribute is here}}
__declspec(dllimport) static const int StaticConstFieldEqualInit = 1;
__declspec(dllimport) static const int StaticConstFieldBraceInit{1};
__declspec(dllimport) constexpr static int ConstexprField = 1;
__declspec(dllimport) constexpr static int ConstexprFieldDef = 1; // expected-note{{attribute is here}}
};
void ImportMembers::Nested::normalDef() {} // expected-warning{{'ImportMembers::Nested::normalDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
void ImportMembers::normalDef() {} // expected-warning{{'ImportMembers::normalDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
inline void ImportMembers::normalInlineDef() {}
void ImportMembers::normalInlineDecl() {}
void ImportMembers::virtualDef() {} // expected-warning{{'ImportMembers::virtualDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
inline void ImportMembers::virtualInlineDef() {}
void ImportMembers::virtualInlineDecl() {}
void ImportMembers::staticDef() {} // expected-warning{{'ImportMembers::staticDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
inline void ImportMembers::staticInlineDef() {}
void ImportMembers::staticInlineDecl() {}
int ImportMembers::StaticFieldDef; // expected-error{{definition of dllimport static field not allowed}}
const int ImportMembers::StaticConstFieldDef = 1; // expected-error{{definition of dllimport static field not allowed}}
constexpr int ImportMembers::ConstexprFieldDef; // expected-error{{definition of dllimport static field not allowed}}
// Import on member definitions.
struct ImportMemberDefs {
__declspec(dllimport) void normalDef();
__declspec(dllimport) void normalInlineDef();
__declspec(dllimport) inline void normalInlineDecl();
__declspec(dllimport) virtual void virtualDef();
__declspec(dllimport) virtual void virtualInlineDef();
__declspec(dllimport) virtual inline void virtualInlineDecl();
__declspec(dllimport) static void staticDef();
__declspec(dllimport) static void staticInlineDef();
__declspec(dllimport) static inline void staticInlineDecl();
__declspec(dllimport) static int StaticField;
__declspec(dllimport) static const int StaticConstField;
__declspec(dllimport) constexpr static int ConstexprField = 1;
};
__declspec(dllimport) void ImportMemberDefs::normalDef() {} // expected-error{{dllimport cannot be applied to non-inline function definition}}
__declspec(dllimport) inline void ImportMemberDefs::normalInlineDef() {}
__declspec(dllimport) void ImportMemberDefs::normalInlineDecl() {}
__declspec(dllimport) void ImportMemberDefs::virtualDef() {} // expected-error{{dllimport cannot be applied to non-inline function definition}}
__declspec(dllimport) inline void ImportMemberDefs::virtualInlineDef() {}
__declspec(dllimport) void ImportMemberDefs::virtualInlineDecl() {}
__declspec(dllimport) void ImportMemberDefs::staticDef() {} // expected-error{{dllimport cannot be applied to non-inline function definition}}
__declspec(dllimport) inline void ImportMemberDefs::staticInlineDef() {}
__declspec(dllimport) void ImportMemberDefs::staticInlineDecl() {}
__declspec(dllimport) int ImportMemberDefs::StaticField; // expected-error{{definition of dllimport static field not allowed}} expected-note{{attribute is here}}
__declspec(dllimport) const int ImportMemberDefs::StaticConstField = 1; // expected-error{{definition of dllimport static field not allowed}} expected-note{{attribute is here}}
__declspec(dllimport) constexpr int ImportMemberDefs::ConstexprField; // expected-error{{definition of dllimport static field not allowed}} expected-note{{attribute is here}}
// Import special member functions.
struct ImportSpecials {
__declspec(dllimport) ImportSpecials();
__declspec(dllimport) ~ImportSpecials();
__declspec(dllimport) ImportSpecials(const ImportSpecials&);
__declspec(dllimport) ImportSpecials& operator=(const ImportSpecials&);
__declspec(dllimport) ImportSpecials(ImportSpecials&&);
__declspec(dllimport) ImportSpecials& operator=(ImportSpecials&&);
};
// Import deleted member functions.
struct ImportDeleted {
__declspec(dllimport) ImportDeleted() = delete; // expected-error{{attribute 'dllimport' cannot be applied to a deleted function}}
__declspec(dllimport) ~ImportDeleted() = delete; // expected-error{{attribute 'dllimport' cannot be applied to a deleted function}}
__declspec(dllimport) ImportDeleted(const ImportDeleted&) = delete; // expected-error{{attribute 'dllimport' cannot be applied to a deleted function}}
__declspec(dllimport) ImportDeleted& operator=(const ImportDeleted&) = delete; // expected-error{{attribute 'dllimport' cannot be applied to a deleted function}}
__declspec(dllimport) ImportDeleted(ImportDeleted&&) = delete; // expected-error{{attribute 'dllimport' cannot be applied to a deleted function}}
__declspec(dllimport) ImportDeleted& operator=(ImportDeleted&&) = delete; // expected-error{{attribute 'dllimport' cannot be applied to a deleted function}}
__declspec(dllimport) void deleted() = delete; // expected-error{{attribute 'dllimport' cannot be applied to a deleted function}}
};
// Import allocation functions.
struct ImportAlloc {
__declspec(dllimport) void* operator new(__SIZE_TYPE__);
__declspec(dllimport) void* operator new[](__SIZE_TYPE__);
__declspec(dllimport) void operator delete(void*);
__declspec(dllimport) void operator delete[](void*);
};
// Import defaulted member functions.
struct ImportDefaulted {
__declspec(dllimport) ImportDefaulted() = default;
__declspec(dllimport) ~ImportDefaulted() = default;
__declspec(dllimport) ImportDefaulted(const ImportDefaulted&) = default;
__declspec(dllimport) ImportDefaulted& operator=(const ImportDefaulted&) = default;
__declspec(dllimport) ImportDefaulted(ImportDefaulted&&) = default;
__declspec(dllimport) ImportDefaulted& operator=(ImportDefaulted&&) = default;
};
// Import defaulted member function definitions.
struct ImportDefaultedDefs {
__declspec(dllimport) ImportDefaultedDefs();
__declspec(dllimport) ~ImportDefaultedDefs(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
__declspec(dllimport) inline ImportDefaultedDefs(const ImportDefaultedDefs&);
__declspec(dllimport) ImportDefaultedDefs& operator=(const ImportDefaultedDefs&);
__declspec(dllimport) ImportDefaultedDefs(ImportDefaultedDefs&&);
__declspec(dllimport) ImportDefaultedDefs& operator=(ImportDefaultedDefs&&); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
};
// Not allowed on definitions.
__declspec(dllimport) ImportDefaultedDefs::ImportDefaultedDefs() = default; // expected-error{{dllimport cannot be applied to non-inline function definition}}
// dllimport cannot be dropped.
ImportDefaultedDefs::~ImportDefaultedDefs() = default; // expected-warning{{'ImportDefaultedDefs::~ImportDefaultedDefs' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
// Import inline declaration and definition.
__declspec(dllimport) ImportDefaultedDefs::ImportDefaultedDefs(const ImportDefaultedDefs&) = default;
inline ImportDefaultedDefs& ImportDefaultedDefs::operator=(const ImportDefaultedDefs&) = default;
__declspec(dllimport) ImportDefaultedDefs::ImportDefaultedDefs(ImportDefaultedDefs&&) = default; // expected-error{{dllimport cannot be applied to non-inline function definition}}
ImportDefaultedDefs& ImportDefaultedDefs::operator=(ImportDefaultedDefs&&) = default; // expected-warning{{'ImportDefaultedDefs::operator=' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
// Redeclarations cannot add dllimport.
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{{previous declaration is here}}
};
__declspec(dllimport) void MemberRedecl::normalDef() {} // expected-error{{redeclaration of 'MemberRedecl::normalDef' cannot add 'dllimport' attribute}}
// expected-error@-1{{dllimport cannot be applied to non-inline function definition}}
__declspec(dllimport) inline void MemberRedecl::normalInlineDef() {} // expected-error{{redeclaration of 'MemberRedecl::normalInlineDef' cannot add 'dllimport' attribute}}
__declspec(dllimport) void MemberRedecl::normalInlineDecl() {} // expected-error{{redeclaration of 'MemberRedecl::normalInlineDecl' cannot add 'dllimport' attribute}}
__declspec(dllimport) void MemberRedecl::virtualDef() {} // expected-error{{redeclaration of 'MemberRedecl::virtualDef' cannot add 'dllimport' attribute}}
// expected-error@-1{{dllimport cannot be applied to non-inline function definition}}
__declspec(dllimport) inline void MemberRedecl::virtualInlineDef() {} // expected-error{{redeclaration of 'MemberRedecl::virtualInlineDef' cannot add 'dllimport' attribute}}
__declspec(dllimport) void MemberRedecl::virtualInlineDecl() {} // expected-error{{redeclaration of 'MemberRedecl::virtualInlineDecl' cannot add 'dllimport' attribute}}
__declspec(dllimport) void MemberRedecl::staticDef() {} // expected-error{{redeclaration of 'MemberRedecl::staticDef' cannot add 'dllimport' attribute}}
// expected-error@-1{{dllimport cannot be applied to non-inline function definition}}
__declspec(dllimport) inline void MemberRedecl::staticInlineDef() {} // expected-error{{redeclaration of 'MemberRedecl::staticInlineDef' cannot add 'dllimport' attribute}}
__declspec(dllimport) void MemberRedecl::staticInlineDecl() {} // expected-error{{redeclaration of 'MemberRedecl::staticInlineDecl' cannot add 'dllimport' attribute}}
__declspec(dllimport) int MemberRedecl::StaticField = 1; // expected-error{{redeclaration of 'MemberRedecl::StaticField' cannot add 'dllimport' attribute}}
// expected-error@-1{{definition of dllimport static field not allowed}}
// expected-note@-2{{attribute is here}}
__declspec(dllimport) const int MemberRedecl::StaticConstField = 1; // expected-error{{redeclaration of 'MemberRedecl::StaticConstField' cannot add 'dllimport' attribute}}
// expected-error@-1{{definition of dllimport static field not allowed}}
// expected-note@-2{{attribute is here}}
__declspec(dllimport) constexpr int MemberRedecl::ConstexprField; // expected-error{{redeclaration of 'MemberRedecl::ConstexprField' cannot add 'dllimport' attribute}}
// expected-error@-1{{definition of dllimport static field not allowed}}
// expected-note@-2{{attribute is here}}
//===----------------------------------------------------------------------===//
// Class member templates
//===----------------------------------------------------------------------===//
struct ImportMemberTmpl {
template<typename T> __declspec(dllimport) void normalDecl();
template<typename T> __declspec(dllimport) void normalDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename T> __declspec(dllimport) void normalInclass() {}
template<typename T> __declspec(dllimport) void normalInlineDef();
template<typename T> __declspec(dllimport) inline void normalInlineDecl();
template<typename T> __declspec(dllimport) static void staticDecl();
template<typename T> __declspec(dllimport) static void staticDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename T> __declspec(dllimport) static void staticInclass() {}
template<typename T> __declspec(dllimport) static void staticInlineDef();
template<typename T> __declspec(dllimport) static inline void staticInlineDecl();
#if __has_feature(cxx_variable_templates)
template<typename T> __declspec(dllimport) static int StaticField;
template<typename T> __declspec(dllimport) static int StaticFieldDef; // expected-note{{attribute is here}}
template<typename T> __declspec(dllimport) static const int StaticConstField;
template<typename T> __declspec(dllimport) static const int StaticConstFieldDef; // expected-note{{attribute is here}}
template<typename T> __declspec(dllimport) static const int StaticConstFieldEqualInit = 1;
template<typename T> __declspec(dllimport) static const int StaticConstFieldBraceInit{1};
template<typename T> __declspec(dllimport) constexpr static int ConstexprField = 1;
template<typename T> __declspec(dllimport) constexpr static int ConstexprFieldDef = 1; // expected-note{{attribute is here}}
#endif // __has_feature(cxx_variable_templates)
};
template<typename T> void ImportMemberTmpl::normalDef() {} // expected-warning{{'ImportMemberTmpl::normalDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> inline void ImportMemberTmpl::normalInlineDef() {}
template<typename T> void ImportMemberTmpl::normalInlineDecl() {}
template<typename T> void ImportMemberTmpl::staticDef() {} // expected-warning{{'ImportMemberTmpl::staticDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> inline void ImportMemberTmpl::staticInlineDef() {}
template<typename T> void ImportMemberTmpl::staticInlineDecl() {}
#if __has_feature(cxx_variable_templates)
template<typename T> int ImportMemberTmpl::StaticFieldDef; // expected-error{{definition of dllimport static field not allowed}}
template<typename T> const int ImportMemberTmpl::StaticConstFieldDef = 1; // expected-error{{definition of dllimport static field not allowed}}
template<typename T> constexpr int ImportMemberTmpl::ConstexprFieldDef; // expected-error{{definition of dllimport static field not allowed}}
#endif // __has_feature(cxx_variable_templates)
// Redeclarations cannot add dllimport.
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{{previous declaration is here}}
#endif // __has_feature(cxx_variable_templates)
};
template<typename T> __declspec(dllimport) void MemTmplRedecl::normalDef() {} // expected-error{{redeclaration of 'MemTmplRedecl::normalDef' cannot add 'dllimport' attribute}}
// expected-error@-1{{dllimport cannot be applied to non-inline function definition}}
template<typename T> __declspec(dllimport) inline void MemTmplRedecl::normalInlineDef() {} // expected-error{{redeclaration of 'MemTmplRedecl::normalInlineDef' cannot add 'dllimport' attribute}}
template<typename T> __declspec(dllimport) void MemTmplRedecl::normalInlineDecl() {} // expected-error{{redeclaration of 'MemTmplRedecl::normalInlineDecl' cannot add 'dllimport' attribute}}
template<typename T> __declspec(dllimport) void MemTmplRedecl::staticDef() {} // expected-error{{redeclaration of 'MemTmplRedecl::staticDef' cannot add 'dllimport' attribute}}
// expected-error@-1{{dllimport cannot be applied to non-inline function definition}}
template<typename T> __declspec(dllimport) inline void MemTmplRedecl::staticInlineDef() {} // expected-error{{redeclaration of 'MemTmplRedecl::staticInlineDef' cannot add 'dllimport' attribute}}
template<typename T> __declspec(dllimport) void MemTmplRedecl::staticInlineDecl() {} // expected-error{{redeclaration of 'MemTmplRedecl::staticInlineDecl' cannot add 'dllimport' attribute}}
#if __has_feature(cxx_variable_templates)
template<typename T> __declspec(dllimport) int MemTmplRedecl::StaticField = 1; // expected-error{{redeclaration of 'MemTmplRedecl::StaticField' cannot add 'dllimport' attribute}}
// expected-error@-1{{definition of dllimport static field not allowed}}
// expected-note@-2{{attribute is here}}
template<typename T> __declspec(dllimport) const int MemTmplRedecl::StaticConstField = 1; // expected-error{{redeclaration of 'MemTmplRedecl::StaticConstField' cannot add 'dllimport' attribute}}
// expected-error@-1{{definition of dllimport static field not allowed}}
// expected-note@-2{{attribute is here}}
template<typename T> __declspec(dllimport) constexpr int MemTmplRedecl::ConstexprField; // expected-error{{redeclaration of 'MemTmplRedecl::ConstexprField' cannot add 'dllimport' attribute}}
// expected-error@-1{{definition of dllimport static field not allowed}}
// expected-note@-2{{attribute is here}}
#endif // __has_feature(cxx_variable_templates)
struct MemFunTmpl {
template<typename T> void normalDef() {}
template<typename T> __declspec(dllimport) void importedNormal() {}
template<typename T> static void staticDef() {}
template<typename T> __declspec(dllimport) static void importedStatic() {}
};
// Import implicit instantiation of an imported member function template.
void useMemFunTmpl() {
MemFunTmpl().importedNormal<ImplicitInst_Imported>();
MemFunTmpl().importedStatic<ImplicitInst_Imported>();
}
// Import explicit instantiation declaration of an imported member function
// template.
extern template void MemFunTmpl::importedNormal<ExplicitDecl_Imported>();
extern template void MemFunTmpl::importedStatic<ExplicitDecl_Imported>();
// Import explicit instantiation definition of an imported member function
// template.
// NB: MSVC fails this instantiation without explicit dllimport.
template void MemFunTmpl::importedNormal<ExplicitInst_Imported>();
template void MemFunTmpl::importedStatic<ExplicitInst_Imported>();
// Import specialization of an imported member function template.
template<> __declspec(dllimport) void MemFunTmpl::importedNormal<ExplicitSpec_Imported>();
template<> __declspec(dllimport) void MemFunTmpl::importedNormal<ExplicitSpec_Def_Imported>() {} // error on mingw
template<> __declspec(dllimport) inline void MemFunTmpl::importedNormal<ExplicitSpec_InlineDef_Imported>() {}
#ifndef MSABI
// expected-error@-3{{dllimport cannot be applied to non-inline function definition}}
#endif
template<> __declspec(dllimport) void MemFunTmpl::importedStatic<ExplicitSpec_Imported>();
template<> __declspec(dllimport) void MemFunTmpl::importedStatic<ExplicitSpec_Def_Imported>() {} // error on mingw
template<> __declspec(dllimport) inline void MemFunTmpl::importedStatic<ExplicitSpec_InlineDef_Imported>() {}
#ifndef MSABI
// expected-error@-3{{dllimport cannot be applied to non-inline function definition}}
#endif
// Not importing specialization of an imported member function template without
// explicit dllimport.
template<> void MemFunTmpl::importedNormal<ExplicitSpec_NotImported>() {}
template<> void MemFunTmpl::importedStatic<ExplicitSpec_NotImported>() {}
// Import explicit instantiation declaration of a non-imported member function
// template.
extern template __declspec(dllimport) void MemFunTmpl::normalDef<ExplicitDecl_Imported>();
extern template __declspec(dllimport) void MemFunTmpl::staticDef<ExplicitDecl_Imported>();
// Import explicit instantiation definition of a non-imported member function
// template.
template __declspec(dllimport) void MemFunTmpl::normalDef<ExplicitInst_Imported>();
template __declspec(dllimport) void MemFunTmpl::staticDef<ExplicitInst_Imported>();
// Import specialization of a non-imported member function template.
template<> __declspec(dllimport) void MemFunTmpl::normalDef<ExplicitSpec_Imported>();
template<> __declspec(dllimport) void MemFunTmpl::normalDef<ExplicitSpec_Def_Imported>() {} // error on mingw
template<> __declspec(dllimport) inline void MemFunTmpl::normalDef<ExplicitSpec_InlineDef_Imported>() {}
#ifndef MSABI
// expected-error@-3{{dllimport cannot be applied to non-inline function definition}}
#endif
template<> __declspec(dllimport) void MemFunTmpl::staticDef<ExplicitSpec_Imported>();
template<> __declspec(dllimport) void MemFunTmpl::staticDef<ExplicitSpec_Def_Imported>() {} // error on mingw
template<> __declspec(dllimport) inline void MemFunTmpl::staticDef<ExplicitSpec_InlineDef_Imported>() {}
#ifndef MSABI
// expected-error@-3{{dllimport cannot be applied to non-inline function definition}}
#endif
#if __has_feature(cxx_variable_templates)
struct MemVarTmpl {
template<typename T> static const int StaticVar = 1;
template<typename T> __declspec(dllimport) static const int ImportedStaticVar = 1;
};
// Import implicit instantiation of an imported member variable template.
int useMemVarTmpl() { return MemVarTmpl::ImportedStaticVar<ImplicitInst_Imported>; }
// Import explicit instantiation declaration of an imported member variable
// template.
extern template const int MemVarTmpl::ImportedStaticVar<ExplicitDecl_Imported>;
// An explicit instantiation definition of an imported member variable template
// cannot be imported because the template must be defined which is illegal. The
// in-class initializer does not count.
// Import specialization of an imported member variable template.
template<> __declspec(dllimport) const int MemVarTmpl::ImportedStaticVar<ExplicitSpec_Imported>;
template<> __declspec(dllimport) const int MemVarTmpl::ImportedStaticVar<ExplicitSpec_Def_Imported> = 1;
// expected-error@-1{{definition of dllimport static field not allowed}}
// expected-note@-2{{attribute is here}}
// Not importing specialization of a member variable template without explicit
// dllimport.
template<> const int MemVarTmpl::ImportedStaticVar<ExplicitSpec_NotImported>;
// Import explicit instantiation declaration of a non-imported member variable
// template.
extern template __declspec(dllimport) const int MemVarTmpl::StaticVar<ExplicitDecl_Imported>;
// An explicit instantiation definition of a non-imported member variable template
// cannot be imported because the template must be defined which is illegal. The
// in-class initializer does not count.
// Import specialization of a non-imported member variable template.
template<> __declspec(dllimport) const int MemVarTmpl::StaticVar<ExplicitSpec_Imported>;
template<> __declspec(dllimport) const int MemVarTmpl::StaticVar<ExplicitSpec_Def_Imported> = 1;
// expected-error@-1{{definition of dllimport static field not allowed}}
// expected-note@-2{{attribute is here}}
#endif // __has_feature(cxx_variable_templates)
//===----------------------------------------------------------------------===//
// Class template members
//===----------------------------------------------------------------------===//
// Import individual members of a class template.
template<typename T>
struct ImportClassTmplMembers {
__declspec(dllimport) void normalDecl();
__declspec(dllimport) void normalDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
__declspec(dllimport) void normalInclass() {}
__declspec(dllimport) void normalInlineDef();
__declspec(dllimport) inline void normalInlineDecl();
__declspec(dllimport) virtual void virtualDecl();
__declspec(dllimport) virtual void virtualDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
__declspec(dllimport) virtual void virtualInclass() {}
__declspec(dllimport) virtual void virtualInlineDef();
__declspec(dllimport) virtual inline void virtualInlineDecl();
__declspec(dllimport) static void staticDecl();
__declspec(dllimport) static void staticDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
__declspec(dllimport) static void staticInclass() {}
__declspec(dllimport) static void staticInlineDef();
__declspec(dllimport) static inline void staticInlineDecl();
protected:
__declspec(dllimport) void protectedDecl();
private:
__declspec(dllimport) void privateDecl();
public:
__declspec(dllimport) int Field; // expected-warning{{'dllimport' attribute only applies to variables, functions and classes}}
__declspec(dllimport) static int StaticField;
__declspec(dllimport) static int StaticFieldDef; // expected-note{{attribute is here}}
__declspec(dllimport) static const int StaticConstField;
__declspec(dllimport) static const int StaticConstFieldDef; // expected-note{{attribute is here}}
__declspec(dllimport) static const int StaticConstFieldEqualInit = 1;
__declspec(dllimport) static const int StaticConstFieldBraceInit{1};
__declspec(dllimport) constexpr static int ConstexprField = 1;
__declspec(dllimport) constexpr static int ConstexprFieldDef = 1; // expected-note{{attribute is here}}
};
// NB: MSVC is inconsistent here and disallows *InlineDef on class templates,
// but allows it on classes. We allow both.
template<typename T> void ImportClassTmplMembers<T>::normalDef() {} // expected-warning{{'ImportClassTmplMembers::normalDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> inline void ImportClassTmplMembers<T>::normalInlineDef() {}
template<typename T> void ImportClassTmplMembers<T>::normalInlineDecl() {}
template<typename T> void ImportClassTmplMembers<T>::virtualDef() {} // expected-warning{{'ImportClassTmplMembers::virtualDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> inline void ImportClassTmplMembers<T>::virtualInlineDef() {}
template<typename T> void ImportClassTmplMembers<T>::virtualInlineDecl() {}
template<typename T> void ImportClassTmplMembers<T>::staticDef() {} // expected-warning{{'ImportClassTmplMembers::staticDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> inline void ImportClassTmplMembers<T>::staticInlineDef() {}
template<typename T> void ImportClassTmplMembers<T>::staticInlineDecl() {}
template<typename T> int ImportClassTmplMembers<T>::StaticFieldDef; // expected-warning{{definition of dllimport static field}}
template<typename T> const int ImportClassTmplMembers<T>::StaticConstFieldDef = 1; // expected-warning{{definition of dllimport static field}}
template<typename T> constexpr int ImportClassTmplMembers<T>::ConstexprFieldDef; // expected-warning{{definition of dllimport static field}}
// Redeclarations cannot add dllimport.
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{{previous declaration is here}}
};
template<typename T> __declspec(dllimport) void CTMR<T>::normalDef() {} // expected-error{{redeclaration of 'CTMR::normalDef' cannot add 'dllimport' attribute}}
// expected-error@-1{{dllimport cannot be applied to non-inline function definition}}
template<typename T> __declspec(dllimport) inline void CTMR<T>::normalInlineDef() {} // expected-error{{redeclaration of 'CTMR::normalInlineDef' cannot add 'dllimport' attribute}}
template<typename T> __declspec(dllimport) void CTMR<T>::normalInlineDecl() {} // expected-error{{redeclaration of 'CTMR::normalInlineDecl' cannot add 'dllimport' attribute}}
template<typename T> __declspec(dllimport) void CTMR<T>::virtualDef() {} // expected-error{{redeclaration of 'CTMR::virtualDef' cannot add 'dllimport' attribute}}
// expected-error@-1{{dllimport cannot be applied to non-inline function definition}}
template<typename T> __declspec(dllimport) inline void CTMR<T>::virtualInlineDef() {} // expected-error{{redeclaration of 'CTMR::virtualInlineDef' cannot add 'dllimport' attribute}}
template<typename T> __declspec(dllimport) void CTMR<T>::virtualInlineDecl() {} // expected-error{{redeclaration of 'CTMR::virtualInlineDecl' cannot add 'dllimport' attribute}}
template<typename T> __declspec(dllimport) void CTMR<T>::staticDef() {} // expected-error{{redeclaration of 'CTMR::staticDef' cannot add 'dllimport' attribute}}
// expected-error@-1{{dllimport cannot be applied to non-inline function definition}}
template<typename T> __declspec(dllimport) inline void CTMR<T>::staticInlineDef() {} // expected-error{{redeclaration of 'CTMR::staticInlineDef' cannot add 'dllimport' attribute}}
template<typename T> __declspec(dllimport) void CTMR<T>::staticInlineDecl() {} // expected-error{{redeclaration of 'CTMR::staticInlineDecl' cannot add 'dllimport' attribute}}
template<typename T> __declspec(dllimport) int CTMR<T>::StaticField = 1; // expected-error{{redeclaration of 'CTMR::StaticField' cannot add 'dllimport' attribute}}
// expected-warning@-1{{definition of dllimport static field}}
// expected-note@-2{{attribute is here}}
template<typename T> __declspec(dllimport) const int CTMR<T>::StaticConstField = 1; // expected-error{{redeclaration of 'CTMR::StaticConstField' cannot add 'dllimport' attribute}}
// expected-warning@-1{{definition of dllimport static field}}
// expected-note@-2{{attribute is here}}
template<typename T> __declspec(dllimport) constexpr int CTMR<T>::ConstexprField; // expected-error{{redeclaration of 'CTMR::ConstexprField' cannot add 'dllimport' attribute}}
// expected-warning@-1{{definition of dllimport static field}}
// expected-note@-2{{attribute is here}}
//===----------------------------------------------------------------------===//
// Class template member templates
//===----------------------------------------------------------------------===//
template<typename T>
struct ImportClsTmplMemTmpl {
template<typename U> __declspec(dllimport) void normalDecl();
template<typename U> __declspec(dllimport) void normalDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename U> __declspec(dllimport) void normalInclass() {}
template<typename U> __declspec(dllimport) void normalInlineDef();
template<typename U> __declspec(dllimport) inline void normalInlineDecl();
template<typename U> __declspec(dllimport) static void staticDecl();
template<typename U> __declspec(dllimport) static void staticDef(); // expected-note{{previous declaration is here}} expected-note{{previous attribute is here}}
template<typename U> __declspec(dllimport) static void staticInclass() {}
template<typename U> __declspec(dllimport) static void staticInlineDef();
template<typename U> __declspec(dllimport) static inline void staticInlineDecl();
#if __has_feature(cxx_variable_templates)
template<typename U> __declspec(dllimport) static int StaticField;
template<typename U> __declspec(dllimport) static int StaticFieldDef; // expected-note{{attribute is here}}
template<typename U> __declspec(dllimport) static const int StaticConstField;
template<typename U> __declspec(dllimport) static const int StaticConstFieldDef; // expected-note{{attribute is here}}
template<typename U> __declspec(dllimport) static const int StaticConstFieldEqualInit = 1;
template<typename U> __declspec(dllimport) static const int StaticConstFieldBraceInit{1};
template<typename U> __declspec(dllimport) constexpr static int ConstexprField = 1;
template<typename U> __declspec(dllimport) constexpr static int ConstexprFieldDef = 1; // expected-note{{attribute is here}}
#endif // __has_feature(cxx_variable_templates)
};
template<typename T> template<typename U> void ImportClsTmplMemTmpl<T>::normalDef() {} // expected-warning{{'ImportClsTmplMemTmpl::normalDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> template<typename U> inline void ImportClsTmplMemTmpl<T>::normalInlineDef() {}
template<typename T> template<typename U> void ImportClsTmplMemTmpl<T>::normalInlineDecl() {}
template<typename T> template<typename U> void ImportClsTmplMemTmpl<T>::staticDef() {} // expected-warning{{'ImportClsTmplMemTmpl::staticDef' redeclared without 'dllimport' attribute: previous 'dllimport' ignored}}
template<typename T> template<typename U> inline void ImportClsTmplMemTmpl<T>::staticInlineDef() {}
template<typename T> template<typename U> void ImportClsTmplMemTmpl<T>::staticInlineDecl() {}
#if __has_feature(cxx_variable_templates)
template<typename T> template<typename U> int ImportClsTmplMemTmpl<T>::StaticFieldDef; // expected-warning{{definition of dllimport static field}}
template<typename T> template<typename U> const int ImportClsTmplMemTmpl<T>::StaticConstFieldDef = 1; // expected-warning{{definition of dllimport static field}}
template<typename T> template<typename U> constexpr int ImportClsTmplMemTmpl<T>::ConstexprFieldDef; // expected-warning{{definition of dllimport static field}}
#endif // __has_feature(cxx_variable_templates)
// Redeclarations cannot add dllimport.
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{{previous declaration is here}}
#endif // __has_feature(cxx_variable_templates)
};
template<typename T> template<typename U> __declspec(dllimport) void CTMTR<T>::normalDef() {} // expected-error{{redeclaration of 'CTMTR::normalDef' cannot add 'dllimport' attribute}}
// expected-error@-1{{dllimport cannot be applied to non-inline function definition}}
template<typename T> template<typename U> __declspec(dllimport) inline void CTMTR<T>::normalInlineDef() {} // expected-error{{redeclaration of 'CTMTR::normalInlineDef' cannot add 'dllimport' attribute}}
template<typename T> template<typename U> __declspec(dllimport) void CTMTR<T>::normalInlineDecl() {} // expected-error{{redeclaration of 'CTMTR::normalInlineDecl' cannot add 'dllimport' attribute}}
template<typename T> template<typename U> __declspec(dllimport) void CTMTR<T>::staticDef() {} // expected-error{{redeclaration of 'CTMTR::staticDef' cannot add 'dllimport' attribute}}
// expected-error@-1{{dllimport cannot be applied to non-inline function definition}}
template<typename T> template<typename U> __declspec(dllimport) inline void CTMTR<T>::staticInlineDef() {} // expected-error{{redeclaration of 'CTMTR::staticInlineDef' cannot add 'dllimport' attribute}}
template<typename T> template<typename U> __declspec(dllimport) void CTMTR<T>::staticInlineDecl() {} // expected-error{{redeclaration of 'CTMTR::staticInlineDecl' cannot add 'dllimport' attribute}}
#if __has_feature(cxx_variable_templates)
template<typename T> template<typename U> __declspec(dllimport) int CTMTR<T>::StaticField = 1; // expected-error{{redeclaration of 'CTMTR::StaticField' cannot add 'dllimport' attribute}}
// expected-warning@-1{{definition of dllimport static field}}
// expected-note@-2{{attribute is here}}
template<typename T> template<typename U> __declspec(dllimport) const int CTMTR<T>::StaticConstField = 1; // expected-error{{redeclaration of 'CTMTR::StaticConstField' cannot add 'dllimport' attribute}}
// expected-warning@-1{{definition of dllimport static field}}
// expected-note@-2{{attribute is here}}
template<typename T> template<typename U> __declspec(dllimport) constexpr int CTMTR<T>::ConstexprField; // expected-error{{redeclaration of 'CTMTR::ConstexprField' cannot add 'dllimport' attribute}}
// expected-warning@-1{{definition of dllimport static field}}
// expected-note@-2{{attribute is here}}
#endif // __has_feature(cxx_variable_templates)
//===----------------------------------------------------------------------===//
// Classes
//===----------------------------------------------------------------------===//
class __declspec(dllimport) ClassDecl;
class __declspec(dllimport) ClassDef { };
template <typename T> class ClassTemplate {};
#ifdef MS
// expected-note@+5{{previous attribute is here}}
// expected-note@+4{{previous attribute is here}}
// expected-error@+4{{attribute 'dllexport' cannot be applied to member of 'dllimport' class}}
// expected-error@+4{{attribute 'dllimport' cannot be applied to member of 'dllimport' class}}
#endif
class __declspec(dllimport) ImportClassWithDllMember {
void __declspec(dllexport) foo();
void __declspec(dllimport) bar();
};
#ifdef MS
// expected-note@+5{{previous attribute is here}}
// expected-note@+4{{previous attribute is here}}
// expected-error@+4{{attribute 'dllimport' cannot be applied to member of 'dllexport' class}}
// expected-error@+4{{attribute 'dllexport' cannot be applied to member of 'dllexport' class}}
#endif
template <typename T> class __declspec(dllexport) ExportClassWithDllMember {
void __declspec(dllimport) foo();
void __declspec(dllexport) bar();
};
namespace ImportedExplicitSpecialization {
template <typename T> struct S { static int x; };
template <typename T> int S<T>::x = sizeof(T);
template <> struct __declspec(dllimport) S<int> { static int x; }; // expected-note{{attribute is here}}
int S<int>::x = -1; // expected-error{{definition of dllimport static field not allowed}}
}
namespace PR19988 {
// Don't error about applying delete to dllimport member function when instantiating.
template <typename> struct __declspec(dllimport) S {
void foo() = delete;
};
S<int> s;
}
#ifdef MS
// expected-warning@+3{{'dllimport' attribute ignored}}
#endif
template <typename T> struct PartiallySpecializedClassTemplate {};
template <typename T> struct __declspec(dllimport) PartiallySpecializedClassTemplate<T*> { void f() {} };
template <typename T> struct ExpliciallySpecializedClassTemplate {};
template <> struct __declspec(dllimport) ExpliciallySpecializedClassTemplate<int> { void f() {} };
//===----------------------------------------------------------------------===//
// Classes with template base classes
//===----------------------------------------------------------------------===//
template <typename T> class __declspec(dllexport) ExportedClassTemplate {};
template <typename T> class __declspec(dllimport) ImportedClassTemplate {};
// ClassTemplate<int> gets imported.
class __declspec(dllimport) DerivedFromTemplate : public ClassTemplate<int> {};
// ClassTemplate<int> is already imported.
class __declspec(dllimport) DerivedFromTemplate2 : public ClassTemplate<int> {};
// ImportedClassTemplate is expliitly imported.
class __declspec(dllimport) DerivedFromImportedTemplate : public ImportedClassTemplate<int> {};
// ExportedClassTemplate is explicitly exported.
class __declspec(dllimport) DerivedFromExportedTemplate : public ExportedClassTemplate<int> {};
#ifdef MS
// expected-note@+4{{class template 'ClassTemplate<double>' was instantiated here}}
// expected-warning@+4{{propagating dll attribute to already instantiated base class template without dll attribute is not supported}}
// expected-note@+3{{attribute is here}}
#endif
class DerivedFromTemplateD : public ClassTemplate<double> {};
class __declspec(dllimport) DerivedFromTemplateD2 : public ClassTemplate<double> {};
#ifdef MS
// expected-note@+4{{class template 'ClassTemplate<bool>' was instantiated here}}
// expected-warning@+4{{propagating dll attribute to already instantiated base class template with different dll attribute is not supported}}
// expected-note@+3{{attribute is here}}
#endif
class __declspec(dllexport) DerivedFromTemplateB : public ClassTemplate<bool> {};
class __declspec(dllimport) DerivedFromTemplateB2 : public ClassTemplate<bool> {};
template <typename T> struct ExplicitlySpecializedTemplate { void func() {} };
#ifdef MS
// 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() {} };
#ifdef MS
// 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 ExplicitlyImportInstantiatedTemplate { void func() {} };
template struct __declspec(dllimport) ExplicitlyImportInstantiatedTemplate<int>;
#ifdef MS
// 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(dllimport) DerivedFromExplicitlySpecializedTemplate : public ExplicitlySpecializedTemplate<int> {};
// Base class already specialized with export attribute.
struct __declspec(dllimport) DerivedFromExplicitlyExportSpecializedTemplate : public ExplicitlyExportSpecializedTemplate<int> {};
// Base class already specialized with import attribute.
struct __declspec(dllimport) DerivedFromExplicitlyImportSpecializedTemplate : public ExplicitlyImportSpecializedTemplate<int> {};
#ifdef MS
// 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(dllimport) DerivedFromExplicitlyInstantiatedTemplate : public ExplicitlyInstantiatedTemplate<int> {};
// Base class already instantiated with export attribute.
struct __declspec(dllimport) DerivedFromExplicitlyExportInstantiatedTemplate : public ExplicitlyExportInstantiatedTemplate<int> {};
// Base class already instantiated with import attribute.
struct __declspec(dllimport) DerivedFromExplicitlyImportInstantiatedTemplate : public ExplicitlyImportInstantiatedTemplate<int> {};
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