// RUN: rm -rf %t
// RUN: not %clang_cc1 -x objective-c++ -fmodules -fimplicit-module-maps -fno-modules-error-recovery -fmodules-cache-path=%t -I %S/Inputs %s -std=c++14 -ast-dump-lookups 2>/dev/null | FileCheck %s --check-prefix=CHECK-GLOBAL
// RUN: not %clang_cc1 -x objective-c++ -fmodules -fimplicit-module-maps -fno-modules-error-recovery -fmodules-cache-path=%t -I %S/Inputs %s -std=c++14 -ast-dump-lookups -ast-dump-filter N 2>/dev/null | FileCheck %s --check-prefix=CHECK-NAMESPACE-N
// RUN: not %clang_cc1 -x objective-c++ -fmodules -fimplicit-module-maps -fno-modules-error-recovery -fmodules-cache-path=%t -I %S/Inputs %s -std=c++14 -ast-dump -ast-dump-filter SomeTemplate 2>/dev/null | FileCheck %s --check-prefix=CHECK-DUMP
// RUN: %clang_cc1 -x objective-c++ -fmodules -fimplicit-module-maps -fno-modules-error-recovery -fmodules-cache-path=%t -I %S/Inputs %s -verify -std=c++14
// RUN: %clang_cc1 -x objective-c++ -fmodules -fimplicit-module-maps -fno-modules-error-recovery -fmodules-cache-path=%t -I %S/Inputs %s -verify -std=c++14 -DEARLY_IMPORT
#ifdef EARLY_IMPORT
#include "cxx-templates-textual.h"
#endif
@import cxx_templates_a;
@import cxx_templates_b;
@import cxx_templates_c;
@import cxx_templates_d;
@import cxx_templates_common;
template<typename, char> struct Tmpl_T_C {};
template<typename, int, int> struct Tmpl_T_I_I {};
template<typename A, typename B, A> struct Tmpl_T_T_A {};
template<typename A, typename B, B> struct Tmpl_T_T_B {};
template<int> struct UseInt {};
void g() {
f(0);
f<double>(1.0);
f<int>();
f(); // expected-error {{no matching function}}
// expected-note@Inputs/cxx-templates-a.h:3 {{couldn't infer template argument}}
// expected-note@Inputs/cxx-templates-a.h:4 {{requires 1 argument}}
N::f(0);
N::f<double>(1.0);
N::f<int>();
N::f(); // expected-error {{no matching function}}
// expected-note@Inputs/cxx-templates-b.h:6 {{couldn't infer template argument}}
// expected-note@Inputs/cxx-templates-b.h:7 {{requires single argument}}
template_param_kinds_1<0>(); // ok, from cxx-templates-a.h
template_param_kinds_1<int>(); // ok, from cxx-templates-b.h
template_param_kinds_2<Tmpl_T_C>(); // ok, from cxx-templates-b.h
template_param_kinds_2<Tmpl_T_I_I>(); // expected-error {{ambiguous}}
// expected-note@Inputs/cxx-templates-a.h:11 {{candidate}}
// expected-note@Inputs/cxx-templates-b.h:11 {{candidate}}
template_param_kinds_3<Tmpl_T_T_A>();
template_param_kinds_3<Tmpl_T_T_B>();
// Trigger the instantiation of a template in 'a' that uses a type defined in
// 'common'. That type is not visible here.
PerformDelayedLookup(defined_in_common);
// Likewise, but via a default argument.
PerformDelayedLookupInDefaultArgument(defined_in_common);
// Trigger the instantiation of a template in 'b' that uses a type defined in
// 'b_impl'. That type is not visible here.
UseDefinedInBImpl<int>();
// Trigger the instantiation of a template in 'a' that uses a type defined in
// 'b_impl', via a template defined in 'b'. Since the type is visible from
// within 'b', the instantiation succeeds.
UseDefinedInBImplIndirectly(defined_in_b_impl);
// Trigger the instantiation of a template in 'a' that uses a type defined in
// 'b_impl'. That type is not visible here, nor in 'a'. This fails; there is
// no reason why DefinedInBImpl should be visible here.
//
// We turn off error recovery for modules in this test (so we don't get an
// implicit import of cxx_templates_b_impl), and that results in us producing
// a big spew of errors here.
//
// expected-error@Inputs/cxx-templates-a.h:19 {{definition of 'DefinedInBImpl' must be imported}}
// expected-note@Inputs/cxx-templates-b-impl.h:1 +{{definition here is not reachable}}
// expected-error@Inputs/cxx-templates-a.h:19 +{{}}
// expected-error@Inputs/cxx-templates-a.h:20 +{{}}
PerformDelayedLookup(defined_in_b_impl); // expected-note {{in instantiation of}}
merge_templates_a = merge_templates_b; // ok, same type
using T = decltype(enum_a_from_a);
using T = decltype(enum_b_from_b);
T e = true ? enum_a_from_a : enum_b_from_b;
UseRedeclaredEnum<int>(UseInt<1>());
// FIXME: Reintroduce this once we merge function template specializations.
//static_assert(UseRedeclaredEnumA == UseRedeclaredEnumB, "");
//static_assert(UseRedeclaredEnumA == UseRedeclaredEnum<int>, "");
//static_assert(UseRedeclaredEnumB == UseRedeclaredEnum<int>, "");
static_assert(enum_c_from_a == enum_c_from_b, "");
CommonTemplate<int> cti;
CommonTemplate<int>::E eee = CommonTemplate<int>::c;
TemplateInstantiationVisibility<char[1]> tiv1;
TemplateInstantiationVisibility<char[2]> tiv2;
TemplateInstantiationVisibility<char[3]> tiv3; // expected-error 5{{must be imported from module 'cxx_templates_b_impl'}}
// [email protected]:10 3{{explicit specialization declared here is not reachable}}
// [email protected]:10 2{{definition here is not reachable}}
TemplateInstantiationVisibility<char[4]> tiv4;
int &p = WithPartialSpecializationUse().f();
int &q = WithExplicitSpecializationUse().inner_template<int>();
int *r = PartiallyInstantiatePartialSpec<int*>::bar();
(void)&WithImplicitSpecialMembers<int>::n;
MergeClassTemplateSpecializations_string s;
extern TestInjectedClassName::A *use_a;
extern TestInjectedClassName::C *use_c;
TestInjectedClassName::UseD();
}
static_assert(Outer<int>::Inner<int>::f() == 1, "");
static_assert(Outer<int>::Inner<int>::g() == 2, "");
static_assert(MergeTemplateDefinitions<int>::f() == 1, "");
static_assert(MergeTemplateDefinitions<int>::g() == 2, "");
RedeclaredAsFriend<int> raf1;
RedeclareTemplateAsFriend<double> rtaf;
RedeclaredAsFriend<double> raf2;
MergeSpecializations<int*>::partially_specialized_in_a spec_in_a_1;
MergeSpecializations<int&>::partially_specialized_in_b spec_in_b_1;
MergeSpecializations<int[]>::partially_specialized_in_c spec_in_c_1;
MergeSpecializations<char>::explicitly_specialized_in_a spec_in_a_2;
MergeSpecializations<double>::explicitly_specialized_in_b spec_in_b_2;
MergeSpecializations<bool>::explicitly_specialized_in_c spec_in_c_2;
MergeAnonUnionMember<> maum_main;
typedef DontWalkPreviousDeclAfterMerging<int> dwpdam_typedef_2;
dwpdam_typedef::type dwpdam_typedef_use;
DontWalkPreviousDeclAfterMerging<int>::Inner::type dwpdam;
using AliasTemplateMergingTest = WithAliasTemplate<int>::X<char>;
int AnonymousDeclsMergingTest(WithAnonymousDecls<int> WAD, WithAnonymousDecls<char> WADC) {
return InstantiateWithAnonymousDeclsA(WAD) +
InstantiateWithAnonymousDeclsB(WAD) +
InstantiateWithAnonymousDeclsB2(WADC) +
InstantiateWithAnonymousDeclsD(WADC);
}
@import cxx_templates_common;
typedef SomeTemplate<int*> SomeTemplateIntPtr;
typedef SomeTemplate<int&> SomeTemplateIntRef;
SomeTemplate<char*> some_template_char_ptr;
SomeTemplate<char&> some_template_char_ref;
void testImplicitSpecialMembers(SomeTemplate<char[1]> &a,
const SomeTemplate<char[1]> &b,
SomeTemplate<char[2]> &c,
const SomeTemplate<char[2]> &d) {
a = b;
c = d;
}
bool testFriendInClassTemplate(Std::WithFriend<int> wfi) {
return wfi != wfi;
}
namespace hidden_specializations {
// [email protected]:* 1+{{here}}
void test() {
// For functions, uses that would trigger instantiations of definitions are
// not allowed.
fn<void>(); // ok
fn<char>(); // ok
fn<int>(); // expected-error 1+{{explicit specialization of 'fn<int>' must be imported}}
cls<void>::nested_fn(); // expected-error 1+{{explicit specialization of 'nested_fn' must be imported}}
cls<void>::nested_fn_t<int>(); // expected-error 1+{{explicit specialization of 'nested_fn_t' must be imported}}
cls<void>::nested_fn_t<char>(); // expected-error 1+{{explicit specialization of 'nested_fn_t' must be imported}}
// For classes, uses that would trigger instantiations of definitions are
// not allowed.
cls<void> *k0; // ok
cls<char> *k1; // ok
cls<int> *k2; // ok
cls<int*> *k3; // ok
cls<void>::nested_cls *nk1; // ok
cls<void>::nested_cls_t<int> *nk2; // ok
cls<void>::nested_cls_t<char> *nk3; // ok
cls<int> uk1; // expected-error 1+{{explicit specialization of 'cls<int>' must be imported}} expected-error 1+{{definition of}}
cls<int*> uk3; // expected-error 1+{{partial specialization of 'cls<T *>' must be imported}} expected-error 1+{{definition of}}
cls<char*> uk4; // expected-error 1+{{partial specialization of 'cls<T *>' must be imported}} expected-error 1+{{definition of}}
cls<void>::nested_cls unk1; // expected-error 1+{{explicit specialization of 'nested_cls' must be imported}} expected-error 1+{{definition of}}
cls<void>::nested_cls_t<int> unk2; // expected-error 1+{{explicit specialization of 'nested_cls_t' must be imported}} expected-error 1+{{definition of}}
// [email protected]:29 {{explicit specialization of 'nested_cls_t' must be imported}}
// expected-note@-2 {{in evaluation of exception specification}}
cls<void>::nested_cls_t<char> unk3; // expected-error 1+{{explicit specialization of 'nested_cls_t' must be imported}}
// For enums, uses that would trigger instantiations of definitions are not
// allowed.
cls<void>::nested_enum e; // ok
(void)cls<void>::nested_enum::e; // expected-error 1+{{definition of 'nested_enum' must be imported}} expected-error 1+{{declaration of 'e'}}
// For variable template specializations, no uses are allowed because
// specializations can change the type.
(void)sizeof(var<void>); // ok
(void)sizeof(var<char>); // ok
(void)sizeof(var<int>); // expected-error 1+{{explicit specialization of 'var<int>' must be imported}}
(void)sizeof(var<int*>); // expected-error 1+{{partial specialization of 'var<T *>' must be imported}}
(void)sizeof(var<char*>); // expected-error 1+{{partial specialization of 'var<T *>' must be imported}}
(void)sizeof(cls<void>::nested_var); // ok
(void)cls<void>::nested_var; // expected-error 1+{{explicit specialization of 'nested_var' must be imported}}
(void)sizeof(cls<void>::nested_var_t<int>); // expected-error 1+{{explicit specialization of 'nested_var_t' must be imported}}
(void)sizeof(cls<void>::nested_var_t<char>); // expected-error 1+{{explicit specialization of 'nested_var_t' must be imported}}
}
void cls<int>::nested_fn() {} // expected-error 1+{{explicit specialization of 'cls<int>' must be imported}} expected-error 1+{{definition of}}
struct cls<int>::nested_cls {}; // expected-error 1+{{explicit specialization of 'cls<int>' must be imported}} expected-error 1+{{definition of}}
int cls<int>::nested_var; // expected-error 1+{{explicit specialization of 'cls<int>' must be imported}} expected-error 1+{{definition of}}
enum cls<int>::nested_enum : int {}; // expected-error 1+{{explicit specialization of 'cls<int>' must be imported}} expected-error 1+{{definition of}}
template<typename T> void cls<T*>::nested_fn() {} // expected-error 1+{{partial specialization of 'cls<T *>' must be imported}}
template<typename T> struct cls<T*>::nested_cls {}; // expected-error 1+{{partial specialization of 'cls<T *>' must be imported}}
template<typename T> int cls<T*>::nested_var; // expected-error 1+{{partial specialization of 'cls<T *>' must be imported}}
template<typename T> enum cls<T*>::nested_enum : int {}; // expected-error 1+{{partial specialization of 'cls<T *>' must be imported}}
}
namespace Std {
void g(); // expected-error {{functions that differ only in their return type cannot be overloaded}}
// [email protected]:21 {{previous}}
}
// CHECK-GLOBAL: DeclarationName 'f'
// CHECK-GLOBAL-NEXT: |-FunctionTemplate {{.*}} 'f'
// CHECK-GLOBAL-NEXT: |-FunctionTemplate {{.*}} 'f'
// CHECK-GLOBAL-NEXT: |-FunctionTemplate {{.*}} 'f'
// CHECK-GLOBAL-NEXT: `-FunctionTemplate {{.*}} 'f'
// CHECK-NAMESPACE-N: DeclarationName 'f'
// CHECK-NAMESPACE-N-NEXT: |-FunctionTemplate {{.*}} 'f'
// CHECK-NAMESPACE-N-NEXT: |-FunctionTemplate {{.*}} 'f'
// CHECK-NAMESPACE-N-NEXT: |-FunctionTemplate {{.*}} 'f'
// CHECK-NAMESPACE-N-NEXT: `-FunctionTemplate {{.*}} 'f'
// CHECK-DUMP: ClassTemplateDecl {{.*}} <{{.*[/\\]}}cxx-templates-common.h:1:1, {{.*}}> col:{{.*}} in cxx_templates_common SomeTemplate
// CHECK-DUMP: ClassTemplateSpecializationDecl {{.*}} prev {{.*}} SomeTemplate
// CHECK-DUMP-NEXT: TemplateArgument type 'char[2]'
// CHECK-DUMP: ClassTemplateSpecializationDecl {{.*}} SomeTemplate definition
// CHECK-DUMP-NEXT: DefinitionData
// CHECK-DUMP-NEXT: DefaultConstructor
// CHECK-DUMP-NEXT: CopyConstructor
// CHECK-DUMP-NEXT: MoveConstructor
// CHECK-DUMP-NEXT: CopyAssignment
// CHECK-DUMP-NEXT: MoveAssignment
// CHECK-DUMP-NEXT: Destructor
// CHECK-DUMP-NEXT: TemplateArgument type 'char[2]'
// CHECK-DUMP: ClassTemplateSpecializationDecl {{.*}} prev {{.*}} SomeTemplate
// CHECK-DUMP-NEXT: TemplateArgument type 'char[1]'
// CHECK-DUMP: ClassTemplateSpecializationDecl {{.*}} SomeTemplate definition
// CHECK-DUMP-NEXT: DefinitionData
// CHECK-DUMP-NEXT: DefaultConstructor
// CHECK-DUMP-NEXT: CopyConstructor
// CHECK-DUMP-NEXT: MoveConstructor
// CHECK-DUMP-NEXT: CopyAssignment
// CHECK-DUMP-NEXT: MoveAssignment
// CHECK-DUMP-NEXT: Destructor
// CHECK-DUMP-NEXT: TemplateArgument type 'char[1]'
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