clang/test/Modules/Inputs/cxx-templates-b.h

   1 @import cxx_templates_common;
   2
   3 template<typename T> T f();
   4 template<typename T> T f(T t) { return t; }
   5 namespace N {
   6   template<typename T> T f();
   7   template<typename T> T f(T t) { return t; }
   8 }
   9
  10 template<typename> int template_param_kinds_1();
  11 template<template<typename, int, int...> class> int template_param_kinds_2();
  12 template<template<typename T, typename U, U> class> int template_param_kinds_3();
  13
  14 template<typename T> struct SomeTemplate<T&> {};
  15 template<typename T> struct SomeTemplate<T&>;
  16 typedef SomeTemplate<int&> SomeTemplateIntRef;
  17
  18 extern DefinedInCommon &defined_in_common;
  19
  20 template<int> struct MergeTemplates;
  21 MergeTemplates<0> *merge_templates_b;
  22
  23 template<typename T> template<typename U>
  24 constexpr int Outer<T>::Inner<U>::g() { return 2; }
  25 static_assert(Outer<int>::Inner<int>::g() == 2, "");
  26
  27 namespace TestInjectedClassName {
  28   template<typename T> struct X { X(); };
  29   typedef X<char[2]> B;
  30 }
  31
  32 @import cxx_templates_b_impl;
  33
  34 template<typename T, typename> struct Identity { typedef T type; };
  35 template<typename T> void UseDefinedInBImpl() {
  36   typename Identity<DefinedInBImpl, T>::type dependent;
  37   FoundByADL(dependent);
  38   typename Identity<DefinedInBImpl, T>::type::Inner inner;
  39   dependent.f();
  40 }
  41
  42 extern DefinedInBImpl &defined_in_b_impl;
  43
  44 template<typename T>
  45 struct RedeclareTemplateAsFriend {
  46   template<typename U>
  47   friend struct RedeclaredAsFriend;
  48 };
  49
  50 void use_some_template_b() {
  51   SomeTemplate<char[1]> a;
  52   SomeTemplate<char[2]> b, c;
  53   b = c;
  54
  55   WithImplicitSpecialMembers<int> wism1, wism2(wism1);
  56 }
  57
  58 auto enum_b_from_b = CommonTemplate<int>::b;
  59 const auto enum_c_from_b = CommonTemplate<int>::c;
  60
  61 template<int> struct UseInt;
  62 template<typename T> void UseRedeclaredEnum(UseInt<T() + CommonTemplate<char>::a>);
  63 constexpr void (*UseRedeclaredEnumB)(UseInt<1>) = UseRedeclaredEnum<int>;
  64
  65 typedef WithPartialSpecialization<void(int)>::type WithPartialSpecializationInstantiate3;
  66
  67 template<typename> struct MergeSpecializations;
  68 template<typename T> struct MergeSpecializations<T&> {
  69   typedef int partially_specialized_in_b;
  70 };
  71 template<> struct MergeSpecializations<double> {
  72   typedef int explicitly_specialized_in_b;
  73 };
  74
  75 template<typename U> using AliasTemplate = U;
  76
  77 void InstantiateWithAliasTemplate(WithAliasTemplate<int>::X<char>);
  78 inline int InstantiateWithAnonymousDeclsB(WithAnonymousDecls<int> x) {
  79   return (x.k ? x.a : x.b) + (x.k ? x.s.c : x.s.d) + x.e;
  80 }
  81 inline int InstantiateWithAnonymousDeclsB2(WithAnonymousDecls<char> x) {
  82   return (x.k ? x.a : x.b) + (x.k ? x.s.c : x.s.d) + x.e;
  83 }
  84
  85 @import cxx_templates_a;
  86 template<typename T> void UseDefinedInBImplIndirectly(T &v) {
  87   PerformDelayedLookup(v);
  88 }
  89
  90 void TriggerInstantiation() {
  91   UseDefinedInBImpl<void>();
  92   Std::f<int>();
  93   PartiallyInstantiatePartialSpec<int*>::foo();
  94   WithPartialSpecialization<void(int)>::type x;
  95 }