6739a10cec
declared before it is used. Because we don't use normal name lookup to find these, the normal code to filter out non-visible names from name lookup results does not apply. llvm-svn: 268585
259 lines
13 KiB
C++
259 lines
13 KiB
C++
// RUN: rm -rf %t
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// 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 | FileCheck %s --check-prefix=CHECK-GLOBAL
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// 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 | FileCheck %s --check-prefix=CHECK-NAMESPACE-N
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// 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 | FileCheck %s --check-prefix=CHECK-DUMP
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// 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
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// 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
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#ifdef EARLY_IMPORT
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#include "cxx-templates-textual.h"
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#endif
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@import cxx_templates_a;
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@import cxx_templates_b;
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@import cxx_templates_c;
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@import cxx_templates_d;
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@import cxx_templates_common;
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template<typename, char> struct Tmpl_T_C {};
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template<typename, int, int> struct Tmpl_T_I_I {};
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template<typename A, typename B, A> struct Tmpl_T_T_A {};
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template<typename A, typename B, B> struct Tmpl_T_T_B {};
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template<int> struct UseInt {};
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void g() {
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f(0);
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f<double>(1.0);
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f<int>();
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f(); // expected-error {{no matching function}}
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// expected-note@Inputs/cxx-templates-a.h:3 {{couldn't infer template argument}}
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// expected-note@Inputs/cxx-templates-a.h:4 {{requires 1 argument}}
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N::f(0);
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N::f<double>(1.0);
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N::f<int>();
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N::f(); // expected-error {{no matching function}}
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// expected-note@Inputs/cxx-templates-b.h:6 {{couldn't infer template argument}}
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// expected-note@Inputs/cxx-templates-b.h:7 {{requires single argument}}
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template_param_kinds_1<0>(); // ok, from cxx-templates-a.h
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template_param_kinds_1<int>(); // ok, from cxx-templates-b.h
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template_param_kinds_2<Tmpl_T_C>(); // expected-error {{no matching function}}
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// expected-note@Inputs/cxx-templates-a.h:11 {{invalid explicitly-specified argument}}
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// expected-note@Inputs/cxx-templates-b.h:11 {{invalid explicitly-specified argument}}
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template_param_kinds_2<Tmpl_T_I_I>(); // expected-error {{ambiguous}}
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// expected-note@Inputs/cxx-templates-a.h:11 {{candidate}}
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// expected-note@Inputs/cxx-templates-b.h:11 {{candidate}}
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// FIXME: This should be valid, but we incorrectly match the template template
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// argument against both template template parameters.
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template_param_kinds_3<Tmpl_T_T_A>(); // expected-error {{ambiguous}}
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// expected-note@Inputs/cxx-templates-a.h:12 {{candidate}}
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// expected-note@Inputs/cxx-templates-b.h:12 {{candidate}}
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template_param_kinds_3<Tmpl_T_T_B>(); // expected-error {{ambiguous}}
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// expected-note@Inputs/cxx-templates-a.h:12 {{candidate}}
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// expected-note@Inputs/cxx-templates-b.h:12 {{candidate}}
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// Trigger the instantiation of a template in 'a' that uses a type defined in
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// 'common'. That type is not visible here.
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PerformDelayedLookup(defined_in_common);
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// Likewise, but via a default argument.
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PerformDelayedLookupInDefaultArgument(defined_in_common);
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// Trigger the instantiation of a template in 'b' that uses a type defined in
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// 'b_impl'. That type is not visible here.
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UseDefinedInBImpl<int>();
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// Trigger the instantiation of a template in 'a' that uses a type defined in
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// 'b_impl', via a template defined in 'b'. Since the type is visible from
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// within 'b', the instantiation succeeds.
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UseDefinedInBImplIndirectly(defined_in_b_impl);
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// Trigger the instantiation of a template in 'a' that uses a type defined in
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// 'b_impl'. That type is not visible here, nor in 'a'. This fails; there is
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// no reason why DefinedInBImpl should be visible here.
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//
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// We turn off error recovery for modules in this test (so we don't get an
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// implicit import of cxx_templates_b_impl), and that results in us producing
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// a big spew of errors here.
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//
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// expected-error@Inputs/cxx-templates-a.h:19 {{definition of 'DefinedInBImpl' must be imported}}
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// expected-note@Inputs/cxx-templates-b-impl.h:1 +{{definition is here}}
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// expected-error@Inputs/cxx-templates-a.h:19 +{{}}
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// expected-error@Inputs/cxx-templates-a.h:20 +{{}}
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PerformDelayedLookup(defined_in_b_impl); // expected-note {{in instantiation of}}
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merge_templates_a = merge_templates_b; // ok, same type
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using T = decltype(enum_a_from_a);
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using T = decltype(enum_b_from_b);
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T e = true ? enum_a_from_a : enum_b_from_b;
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UseRedeclaredEnum<int>(UseInt<1>());
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// FIXME: Reintroduce this once we merge function template specializations.
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//static_assert(UseRedeclaredEnumA == UseRedeclaredEnumB, "");
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//static_assert(UseRedeclaredEnumA == UseRedeclaredEnum<int>, "");
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//static_assert(UseRedeclaredEnumB == UseRedeclaredEnum<int>, "");
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static_assert(enum_c_from_a == enum_c_from_b, "");
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CommonTemplate<int> cti;
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CommonTemplate<int>::E eee = CommonTemplate<int>::c;
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TemplateInstantiationVisibility<char[1]> tiv1;
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TemplateInstantiationVisibility<char[2]> tiv2;
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TemplateInstantiationVisibility<char[3]> tiv3; // expected-error 5{{must be imported from module 'cxx_templates_b_impl'}}
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// expected-note@cxx-templates-b-impl.h:10 3{{explicit specialization declared here}}
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// expected-note@cxx-templates-b-impl.h:10 2{{previous definition is here}}
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TemplateInstantiationVisibility<char[4]> tiv4;
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int &p = WithPartialSpecializationUse().f();
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int &q = WithExplicitSpecializationUse().inner_template<int>();
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int *r = PartiallyInstantiatePartialSpec<int*>::bar();
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(void)&WithImplicitSpecialMembers<int>::n;
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MergeClassTemplateSpecializations_string s;
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extern TestInjectedClassName::A *use_a;
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extern TestInjectedClassName::C *use_c;
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TestInjectedClassName::UseD();
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}
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static_assert(Outer<int>::Inner<int>::f() == 1, "");
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static_assert(Outer<int>::Inner<int>::g() == 2, "");
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static_assert(MergeTemplateDefinitions<int>::f() == 1, "");
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static_assert(MergeTemplateDefinitions<int>::g() == 2, "");
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RedeclaredAsFriend<int> raf1;
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RedeclareTemplateAsFriend<double> rtaf;
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RedeclaredAsFriend<double> raf2;
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MergeSpecializations<int*>::partially_specialized_in_a spec_in_a_1;
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MergeSpecializations<int&>::partially_specialized_in_b spec_in_b_1;
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MergeSpecializations<int[]>::partially_specialized_in_c spec_in_c_1;
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MergeSpecializations<char>::explicitly_specialized_in_a spec_in_a_2;
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MergeSpecializations<double>::explicitly_specialized_in_b spec_in_b_2;
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MergeSpecializations<bool>::explicitly_specialized_in_c spec_in_c_2;
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MergeAnonUnionMember<> maum_main;
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typedef DontWalkPreviousDeclAfterMerging<int> dwpdam_typedef_2;
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dwpdam_typedef::type dwpdam_typedef_use;
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DontWalkPreviousDeclAfterMerging<int>::Inner::type dwpdam;
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using AliasTemplateMergingTest = WithAliasTemplate<int>::X<char>;
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int AnonymousDeclsMergingTest(WithAnonymousDecls<int> WAD, WithAnonymousDecls<char> WADC) {
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return InstantiateWithAnonymousDeclsA(WAD) +
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InstantiateWithAnonymousDeclsB(WAD) +
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InstantiateWithAnonymousDeclsB2(WADC) +
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InstantiateWithAnonymousDeclsD(WADC);
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}
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@import cxx_templates_common;
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typedef SomeTemplate<int*> SomeTemplateIntPtr;
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typedef SomeTemplate<int&> SomeTemplateIntRef;
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SomeTemplate<char*> some_template_char_ptr;
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SomeTemplate<char&> some_template_char_ref;
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void testImplicitSpecialMembers(SomeTemplate<char[1]> &a,
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const SomeTemplate<char[1]> &b,
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SomeTemplate<char[2]> &c,
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const SomeTemplate<char[2]> &d) {
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a = b;
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c = d;
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}
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bool testFriendInClassTemplate(Std::WithFriend<int> wfi) {
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return wfi != wfi;
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}
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namespace hidden_specializations {
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// expected-note@cxx-templates-unimported.h:* 1+{{here}}
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void test() {
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// For functions, uses that would trigger instantiations of definitions are
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// not allowed.
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fn<void>(); // ok
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fn<char>(); // ok
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fn<int>(); // expected-error 1+{{explicit specialization of 'fn<int>' must be imported}}
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cls<void>::nested_fn(); // expected-error 1+{{explicit specialization of 'nested_fn' must be imported}}
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cls<void>::nested_fn_t<int>(); // expected-error 1+{{explicit specialization of 'nested_fn_t' must be imported}}
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cls<void>::nested_fn_t<char>(); // expected-error 1+{{explicit specialization of 'nested_fn_t' must be imported}}
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// For classes, uses that would trigger instantiations of definitions are
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// not allowed.
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cls<void> *k0; // ok
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cls<char> *k1; // ok
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cls<int> *k2; // ok
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cls<int*> *k3; // ok
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cls<void>::nested_cls *nk1; // ok
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cls<void>::nested_cls_t<int> *nk2; // ok
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cls<void>::nested_cls_t<char> *nk3; // ok
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cls<int> uk1; // expected-error 1+{{explicit specialization of 'cls<int>' must be imported}} expected-error 1+{{definition of}}
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cls<int*> uk3; // expected-error 1+{{partial specialization of 'cls<type-parameter-0-0 *>' must be imported}} expected-error 1+{{definition of}}
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cls<char*> uk4; // expected-error 1+{{partial specialization of 'cls<type-parameter-0-0 *>' must be imported}} expected-error 1+{{definition of}}
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cls<void>::nested_cls unk1; // expected-error 1+{{explicit specialization of 'nested_cls' must be imported}} expected-error 1+{{definition of}}
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cls<void>::nested_cls_t<int> unk2; // expected-error 1+{{explicit specialization of 'nested_cls_t' must be imported}} expected-error 1+{{definition of}}
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cls<void>::nested_cls_t<char> unk3; // expected-error 1+{{explicit specialization of 'nested_cls_t' must be imported}}
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// For enums, uses that would trigger instantiations of definitions are not
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// allowed.
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cls<void>::nested_enum e; // ok
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(void)cls<void>::nested_enum::e; // expected-error 1+{{definition of 'nested_enum' must be imported}} expected-error 1+{{declaration of 'e'}}
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// For variable template specializations, no uses are allowed because
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// specializations can change the type.
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(void)sizeof(var<void>); // ok
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(void)sizeof(var<char>); // ok
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(void)sizeof(var<int>); // expected-error 1+{{explicit specialization of 'var<int>' must be imported}}
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(void)sizeof(var<int*>); // expected-error 1+{{partial specialization of 'var<type-parameter-0-0 *>' must be imported}}
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(void)sizeof(var<char*>); // expected-error 1+{{partial specialization of 'var<type-parameter-0-0 *>' must be imported}}
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(void)sizeof(cls<void>::nested_var); // ok
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(void)cls<void>::nested_var; // expected-error 1+{{explicit specialization of 'nested_var' must be imported}}
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(void)sizeof(cls<void>::nested_var_t<int>); // expected-error 1+{{explicit specialization of 'nested_var_t' must be imported}}
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(void)sizeof(cls<void>::nested_var_t<char>); // expected-error 1+{{explicit specialization of 'nested_var_t' must be imported}}
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}
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void cls<int>::nested_fn() {} // expected-error 1+{{explicit specialization of 'cls<int>' must be imported}} expected-error 1+{{definition of}}
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struct cls<int>::nested_cls {}; // expected-error 1+{{explicit specialization of 'cls<int>' must be imported}} expected-error 1+{{definition of}}
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int cls<int>::nested_var; // expected-error 1+{{explicit specialization of 'cls<int>' must be imported}} expected-error 1+{{definition of}}
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enum cls<int>::nested_enum : int {}; // expected-error 1+{{explicit specialization of 'cls<int>' must be imported}} expected-error 1+{{definition of}}
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template<typename T> void cls<T*>::nested_fn() {} // expected-error 1+{{partial specialization of 'cls<type-parameter-0-0 *>' must be imported}}
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template<typename T> struct cls<T*>::nested_cls {}; // expected-error 1+{{partial specialization of 'cls<type-parameter-0-0 *>' must be imported}}
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template<typename T> int cls<T*>::nested_var; // expected-error 1+{{partial specialization of 'cls<type-parameter-0-0 *>' must be imported}}
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template<typename T> enum cls<T*>::nested_enum : int {}; // expected-error 1+{{partial specialization of 'cls<type-parameter-0-0 *>' must be imported}}
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}
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namespace Std {
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void g(); // expected-error {{functions that differ only in their return type cannot be overloaded}}
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// expected-note@cxx-templates-common.h:21 {{previous}}
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}
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// CHECK-GLOBAL: DeclarationName 'f'
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// CHECK-GLOBAL-NEXT: |-FunctionTemplate {{.*}} 'f'
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// CHECK-GLOBAL-NEXT: |-FunctionTemplate {{.*}} 'f'
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// CHECK-GLOBAL-NEXT: |-FunctionTemplate {{.*}} 'f'
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// CHECK-GLOBAL-NEXT: `-FunctionTemplate {{.*}} 'f'
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// CHECK-NAMESPACE-N: DeclarationName 'f'
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// CHECK-NAMESPACE-N-NEXT: |-FunctionTemplate {{.*}} 'f'
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// CHECK-NAMESPACE-N-NEXT: |-FunctionTemplate {{.*}} 'f'
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// CHECK-NAMESPACE-N-NEXT: |-FunctionTemplate {{.*}} 'f'
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// CHECK-NAMESPACE-N-NEXT: `-FunctionTemplate {{.*}} 'f'
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// CHECK-DUMP: ClassTemplateDecl {{.*}} <{{.*[/\\]}}cxx-templates-common.h:1:1, {{.*}}> col:{{.*}} in cxx_templates_common SomeTemplate
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// CHECK-DUMP: ClassTemplateSpecializationDecl {{.*}} prev {{.*}} SomeTemplate
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// CHECK-DUMP-NEXT: TemplateArgument type 'char [1]'
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// CHECK-DUMP: ClassTemplateSpecializationDecl {{.*}} SomeTemplate definition
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// CHECK-DUMP-NEXT: TemplateArgument type 'char [1]'
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// CHECK-DUMP: ClassTemplateSpecializationDecl {{.*}} prev {{.*}} SomeTemplate
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// CHECK-DUMP-NEXT: TemplateArgument type 'char [2]'
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// CHECK-DUMP: ClassTemplateSpecializationDecl {{.*}} SomeTemplate definition
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// CHECK-DUMP-NEXT: TemplateArgument type 'char [2]'
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