src/third_party/llvm-project/clang/test/Index/index-refs.cpp

namespace NS {
  extern int gx;
  typedef int MyInt;
}

enum {
  EnumVal = 1
};

NS::MyInt NS::gx = EnumVal;

void foo() {
  NS::MyInt x;
}

enum {
  SecondVal = EnumVal
};

struct S {
  S& operator++();
  int operator*();
  S& operator=(int x);
  S& operator!=(int x);
  S& operator()(int x);
};

void foo2(S &s) {
  (void)++s;
  (void)*s;
  s = 3;
  (void)(s != 3);
  s(3);
}

namespace NS {
  namespace Inn {}
  typedef int Foo;
}

using namespace NS;
using namespace NS::Inn;
using NS::Foo;

template <typename T1, typename T2>
struct TS { };

template <typename T>
struct TS<T, int> {
  typedef int MyInt;
};

void foo3() {
  TS<int, int> s;
}

const int array_size = 3;
typedef int some_arr[array_size];

const int default_param = 3;
void foo4(int p = default_param);

struct S2 {
  int x,y;
};

void foo5() {
  struct S2 s = { .y = 1, .x = 4};
  s.y = s.x + 1;
  (void)&foo3;
  foo4(s.y);
}

int ginitlist[] = {EnumVal};

// RUN: c-index-test -index-file %s | FileCheck %s
// CHECK:      [indexDeclaration]: kind: namespace | name: NS
// CHECK-NEXT: [indexDeclaration]: kind: variable | name: gx
// CHECK-NEXT: [indexDeclaration]: kind: typedef | name: MyInt
// CHECK-NEXT: [indexDeclaration]: kind: enum
// CHECK-NEXT: [indexDeclaration]: kind: enumerator | name: EnumVal
// CHECK-NEXT: [indexDeclaration]: kind: variable | name: gx
// CHECK-NEXT: [indexEntityReference]: kind: namespace | name: NS
// CHECK-NEXT: [indexEntityReference]: kind: typedef | name: MyInt
// CHECK-NEXT: [indexEntityReference]: kind: namespace | name: NS
// CHECK-NEXT: [indexEntityReference]: kind: enumerator | name: EnumVal
// CHECK-NEXT: [indexDeclaration]: kind: function | name: foo
// CHECK-NEXT: [indexEntityReference]: kind: namespace | name: NS
// CHECK-NEXT: [indexEntityReference]: kind: typedef | name: MyInt
// CHECK-NEXT: [indexDeclaration]: kind: enum
// CHECK-NEXT: [indexDeclaration]: kind: enumerator | name: SecondVal
// CHECK-NEXT: [indexEntityReference]: kind: enumerator | name: EnumVal

// CHECK:      [indexDeclaration]: kind: function | name: foo2
// CHECK:      [indexEntityReference]: kind: c++-instance-method | name: operator++
// CHECK-NEXT: [indexEntityReference]: kind: c++-instance-method | name: operator*
// CHECK-NEXT: [indexEntityReference]: kind: c++-instance-method | name: operator=
// CHECK-NEXT: [indexEntityReference]: kind: c++-instance-method | name: operator!=
// CHECK-NEXT: [indexEntityReference]: kind: c++-instance-method | name: operator()

// CHECK:      [indexEntityReference]: kind: namespace | name: NS | {{.*}} | loc: 42:17
// CHECK-NEXT: [indexEntityReference]: kind: namespace | name: NS | {{.*}} | loc: 43:17
// CHECK-NEXT: [indexEntityReference]: kind: namespace | name: Inn | {{.*}} | loc: 43:21
// CHECK-NEXT: [indexEntityReference]: kind: namespace | name: NS | {{.*}} | loc: 44:7
// CHECK-NEXT: [indexEntityReference]: kind: typedef | name: Foo | {{.*}} | loc: 44:11

// CHECK:      [indexDeclaration]: kind: c++-class-template | name: TS | {{.*}} | loc: 47:8
// CHECK-NEXT: [indexDeclaration]: kind: struct-template-partial-spec | name: TS | USR: c:@SP>1#T@TS>#t0.0#I | {{.*}} | loc: 50:8
// CHECK-NEXT: [indexDeclaration]: kind: typedef | name: MyInt | USR: c:index-refs.cpp@SP>1#T@TS>#t0.0#I@T@MyInt | {{.*}} | loc: 51:15 | semantic-container: [TS:50:8] | lexical-container: [TS:50:8]
// CHECK-NEXT: [indexEntityReference]: kind: c++-class-template | name: TS | USR: c:@ST>2#T#T@TS | lang: C++ | cursor: TemplateRef=TS:47:8 | loc: 50:8 | <parent>:: <<NULL>> | container: [TU] | refkind: direct | role: ref
/* when indexing implicit instantiations
  [indexDeclaration]: kind: struct-template-spec | name: TS | USR: c:@S@TS>#I | {{.*}} | loc: 50:8
  [indexDeclaration]: kind: typedef | name: MyInt | USR: c:index-refs.cpp@593@S@TS>#I@T@MyInt | {{.*}} | loc: 51:15 | semantic-container: [TS:50:8] | lexical-container: [TS:50:8]
 */
// CHECK-NEXT: [indexDeclaration]: kind: function | name: foo3
/* when indexing implicit instantiations
  [indexEntityReference]: kind: struct-template-spec | name: TS | USR: c:@S@TS>#I | {{.*}} | loc: 55:3
*/
// CHECK-NEXT: [indexEntityReference]: kind: c++-class-template | name: TS | USR: c:@ST>2#T#T@TS | {{.*}} | loc: 55:3

// CHECK:      [indexEntityReference]: kind: variable | name: array_size | {{.*}} | loc: 59:22
// CHECK:      [indexEntityReference]: kind: variable | name: default_param | {{.*}} | loc: 62:19 | {{.*}} | role: ref read
// CHECK-NOT:  [indexEntityReference]: kind: variable | name: default_param | {{.*}} | loc: 62:19

// CHECK:      [indexEntityReference]: kind: field | name: y | {{.*}} | loc: 69:20
// CHECK-NEXT: [indexEntityReference]: kind: field | name: x | {{.*}} | loc: 69:28
// CHECK-NOT:  [indexEntityReference]: kind: field | name: y | {{.*}} | loc: 69:20
// CHECK-NOT:  [indexEntityReference]: kind: field | name: x | {{.*}} | loc: 69:28

// CHECK:      [indexEntityReference]: kind: field | name: y | {{.*}} | loc: 70:5 | {{.*}} | role: ref write
// CHECK:      [indexEntityReference]: kind: field | name: x | {{.*}} | loc: 70:11 | {{.*}} | role: ref read
// CHECK:      [indexEntityReference]: kind: function | name: foo3 | {{.*}} | loc: 71:10 | {{.*}} | role: ref addr
// CHECK:      [indexEntityReference]: kind: function | name: foo4 | {{.*}} | loc: 72:3 | {{.*}} | role: ref call

// CHECK:      [indexDeclaration]: kind: variable | name: ginitlist |
// CHECK:      [indexEntityReference]: kind: enumerator | name: EnumVal | {{.*}} | loc: 75:20
// CHECK-NOT:  [indexEntityReference]: kind: enumerator | name: EnumVal | {{.*}} | loc: 75:20