clang/test/Index/Core/index-instantiated-source.cpp

// RUN: c-index-test core -print-source-symbols -- %s -std=c++14 -target x86_64-apple-macosx10.7 | FileCheck %s
// References to declarations in instantiations should be canonicalized:

template<typename T>
class BaseTemplate {
public:
  T baseTemplateFunction();
// CHECK: [[@LINE-1]]:5 | instance-method/C++ | baseTemplateFunction | c:@ST>1#T@BaseTemplate@F@baseTemplateFunction#

  T baseTemplateField;
// CHECK: [[@LINE-1]]:5 | field/C++ | baseTemplateField | c:@ST>1#T@BaseTemplate@FI@baseTemplateField

  struct NestedBaseType { };
// CHECK: [[@LINE-1]]:10 | struct/C | NestedBaseType | c:@ST>1#T@BaseTemplate@S@NestedBaseType |
};

template<typename T, typename S>
class TemplateClass: public BaseTemplate<T> {
public:
  T function() { return T(); }
// CHECK: [[@LINE-1]]:5 | instance-method/C++ | function | c:@ST>2#T#T@TemplateClass@F@function#

  static void staticFunction() { }
// CHECK: [[@LINE-1]]:15 | static-method/C++ | staticFunction | c:@ST>2#T#T@TemplateClass@F@staticFunction#S

  T field;
// CHECK: [[@LINE-1]]:5 | field/C++ | field | c:@ST>2#T#T@TemplateClass@FI@field

  struct NestedType {
// CHECK: [[@LINE-1]]:10 | struct/C++ | NestedType | c:@ST>2#T#T@TemplateClass@S@NestedType |

    T nestedField;
// CHECK: [[@LINE-1]]:7 | field/C++ | nestedField | c:@ST>2#T#T@TemplateClass@S@NestedType@FI@nestedField |

    class SubNestedType {
// CHECK: [[@LINE-1]]:11 | class/C++ | SubNestedType | c:@ST>2#T#T@TemplateClass@S@NestedType@S@SubNestedType |
    public:
      SubNestedType(int);
    };
    using TypeAlias = T;
// CHECK: [[@LINE-1]]:11 | type-alias/C++ | TypeAlias | c:@ST>2#T#T@TemplateClass@S@NestedType@TypeAlias |

    typedef int Typedef;
// CHECK: [[@LINE-1]]:17 | type-alias/C | Typedef | c:{{.*}}index-instantiated-source.cpp@ST>2#T#T@TemplateClass@S@NestedType@T@Typedef |

    enum Enum {
// CHECK: [[@LINE-1]]:10 | enum/C | Enum | c:@ST>2#T#T@TemplateClass@S@NestedType@E@Enum |
      EnumCase
// CHECK: [[@LINE-1]]:7 | enumerator/C | EnumCase | c:@ST>2#T#T@TemplateClass@S@NestedType@E@Enum@EnumCase |
    };
  };
};

void canonicalizeInstaniationReferences(TemplateClass<int, float> &object) {
  (void)object.function();
// CHECK: [[@LINE-1]]:16 | instance-method/C++ | function | c:@ST>2#T#T@TemplateClass@F@function# | <no-cgname>
  (void)object.field;
// CHECK: [[@LINE-1]]:16 | field/C++ | field | c:@ST>2#T#T@TemplateClass@FI@field | <no-cgname> | Ref,RelCont | rel: 1
  (void)object.baseTemplateFunction();
// CHECK: [[@LINE-1]]:16 | instance-method/C++ | baseTemplateFunction | c:@ST>1#T@BaseTemplate@F@baseTemplateFunction# | <no-cgname>
  (void)object.baseTemplateField;
// CHECK: [[@LINE-1]]:16 | field/C++ | baseTemplateField | c:@ST>1#T@BaseTemplate@FI@baseTemplateField | <no-cgname> | Ref,RelCont | rel: 1

  TemplateClass<int, float>::staticFunction();
// CHECK: [[@LINE-1]]:30 | static-method/C++ | staticFunction | c:@ST>2#T#T@TemplateClass@F@staticFunction#S | <no-cgname

  TemplateClass<int, float>::NestedBaseType nestedBaseType;
// CHECK: [[@LINE-1]]:30 | struct/C | NestedBaseType | c:@ST>1#T@BaseTemplate@S@NestedBaseType |
  TemplateClass<int, float>::NestedType nestedSubType;
// CHECK: [[@LINE-1]]:30 | struct/C++ | NestedType | c:@ST>2#T#T@TemplateClass@S@NestedType |
  (void)nestedSubType.nestedField;
// CHECK: [[@LINE-1]]:23 | field/C++ | nestedField | c:@ST>2#T#T@TemplateClass@S@NestedType@FI@nestedField |

  typedef TemplateClass<int, float> TT;
  TT::NestedType::SubNestedType subNestedType(0);
// CHECK: [[@LINE-1]]:7 | struct/C++ | NestedType | c:@ST>2#T#T@TemplateClass@S@NestedType |
// CHECK: [[@LINE-2]]:19 | class/C++ | SubNestedType | c:@ST>2#T#T@TemplateClass@S@NestedType@S@SubNestedType |

  TT::NestedType::TypeAlias nestedTypeAlias;
// CHECK: [[@LINE-1]]:19 | type-alias/C++ | TypeAlias | c:@ST>2#T#T@TemplateClass@S@NestedType@TypeAlias |
  TT::NestedType::Typedef nestedTypedef;
// CHECK: [[@LINE-1]]:19 | type-alias/C | Typedef | c:{{.*}}index-instantiated-source.cpp@ST>2#T#T@TemplateClass@S@NestedType@T@Typedef |

  TT::NestedType::Enum nestedEnum;
// CHECK: [[@LINE-1]]:19 | enum/C | Enum | c:@ST>2#T#T@TemplateClass@S@NestedType@E@Enum |
  (void)TT::NestedType::Enum::EnumCase;
// CHECK: [[@LINE-1]]:31 | enumerator/C | EnumCase | c:@ST>2#T#T@TemplateClass@S@NestedType@E@Enum@EnumCase |
}

namespace index_specialization {
template <typename T>
class Foo {};

// if there are no explicit template specializations provided, report the
// primary templates.
Foo<int> *t1; // incomplete instantiation.
// CHECK: [[@LINE-1]]:1 | class(Gen)/C++ | Foo | c:@N@index_specialization@ST>1#T@Foo | <no-cgname> | Ref,RelCont | rel: 1

Foo<double> t2;
// CHECK: [[@LINE-1]]:1 | class(Gen)/C++ | Foo | c:@N@index_specialization@ST>1#T@Foo | <no-cgname> | Ref,RelCont | rel: 1

// explicit instantiations.
template class Foo<float>;
Foo<float> t3;
// CHECK: [[@LINE-1]]:1 | class(Gen)/C++ | Foo | c:@N@index_specialization@ST>1#T@Foo | <no-cgname> | Ref,RelCont | rel: 1


template <typename T>
class Bar {};

// explicit template specialization definition!
template <>class Bar<int> {};
// report the explicit template specialization if it exists.
Bar<int> *b1;
// CHECK: [[@LINE-1]]:1 | class(Gen,TS)/C++ | Bar | c:@N@index_specialization@S@Bar>#I | <no-cgname> | Ref,RelCont | rel: 1

// explicit template declaration, not a definition!
template <> class Bar <float>;
Bar<float> *b2;
// CHECK: [[@LINE-1]]:1 | class(Gen,TS)/C++ | Bar | c:@N@index_specialization@S@Bar>#f | <no-cgname> | Ref,RelCont | rel: 1

} // namespace index_specialization