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TheRock/compiler/amd-llvm/clang-tools-extra/test/clang-tidy/checkers/bugprone/reserved-identifier.cpp
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2026-09-02 16:34:47 -07:00

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// RUN: %check_clang_tidy %s bugprone-reserved-identifier %t -- \
// RUN: -header-filter='' -- \
// RUN: -I%S/Inputs/reserved-identifier \
// RUN: -isystem %S/Inputs/reserved-identifier/system
// no warnings expected with -header-filter=''
#include "user-header.h"
#include <system-header.h>
#define _MACRO(m) int m = 0
// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: declaration uses identifier '_MACRO', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: #define MACRO(m) int m = 0
namespace _Ns {
// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: declaration uses identifier '_Ns', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: namespace Ns {
class _Object {
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '_Object', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: class Object {
int _Member;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '_Member', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: int Member;
};
float _Global;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '_Global', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: float Global;
void _Function() {}
// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: declaration uses identifier '_Function', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: void Function() {}
using _Alias = int;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '_Alias', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: using Alias = int;
template <typename _TemplateParam>
// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: declaration uses identifier '_TemplateParam', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: template <typename TemplateParam>
struct S {};
} // namespace _Ns
//
#define __macro(m) int m = 0
// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: declaration uses identifier '__macro', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: #define _macro(m) int m = 0
namespace __ns {
// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: declaration uses identifier '__ns', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: namespace ns {
class __object {
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '__object', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: class _object {
int __member;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '__member', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: int _member;
};
float __global;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '__global', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: float _global;
void __function() {}
// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: declaration uses identifier '__function', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: void _function() {}
using __alias = int;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '__alias', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: using _alias = int;
template <typename __templateParam>
// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: declaration uses identifier '__templateParam', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: template <typename _templateParam>
struct S {};
} // namespace __ns
//
#define macro___m(m) int m = 0
// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: declaration uses identifier 'macro___m', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: #define macro_m(m) int m = 0
namespace ns___n {
// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: declaration uses identifier 'ns___n', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: namespace ns_n {
class object___o {
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier 'object___o', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: class object_o {
int member___m;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier 'member___m', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: int member_m;
};
float global___g;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier 'global___g', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: float global_g;
void function___f() {}
// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: declaration uses identifier 'function___f', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: void function_f() {}
using alias___a = int;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier 'alias___a', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: using alias_a = int;
template <typename templateParam___t>
// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: declaration uses identifier 'templateParam___t', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: template <typename templateParam_t>
struct S {};
} // namespace ns___n
//
// OK, this rule does not apply to macros:
// https://github.com/llvm/llvm-project/issues/64130#issuecomment-1655751676
#define _macro(m) int m = 0
namespace _ns {
// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: declaration uses identifier '_ns', which is reserved in the global namespace [bugprone-reserved-identifier]
// CHECK-FIXES: namespace ns {
int _i;
// no warning
} // namespace _ns
class _object {
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '_object', which is reserved in the global namespace [bugprone-reserved-identifier]
// CHECK-FIXES: class object {
int _member;
// no warning
};
float _global;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '_global', which is reserved in the global namespace [bugprone-reserved-identifier]
// CHECK-FIXES: float global;
void _function() {}
// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: declaration uses identifier '_function', which is reserved in the global namespace [bugprone-reserved-identifier]
// CHECK-FIXES: void function() {}
using _alias = int;
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: declaration uses identifier '_alias', which is reserved in the global namespace [bugprone-reserved-identifier]
// CHECK-FIXES: using alias = int;
template <typename _templateParam> // no warning, template params are not in the global namespace
struct S {};
void _float() {}
// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: declaration uses identifier '_float', which is reserved in the global namespace; cannot be fixed because 'float' would conflict with a keyword [bugprone-reserved-identifier]
// CHECK-FIXES: void _float() {}
#define SOME_MACRO
int SOME__MACRO;
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: declaration uses identifier 'SOME__MACRO', which is a reserved identifier; cannot be fixed because 'SOME_MACRO' would conflict with a macro definition [bugprone-reserved-identifier]
// CHECK-FIXES: int SOME__MACRO;
void _TWO__PROBLEMS() {}
// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: declaration uses identifier '_TWO__PROBLEMS', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: void TWO_PROBLEMS() {}
void _two__problems() {}
// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: declaration uses identifier '_two__problems', which is a reserved identifier [bugprone-reserved-identifier]
// CHECK-FIXES: void two_problems() {}
int __;
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: declaration uses identifier '__', which is a reserved identifier; cannot be fixed automatically [bugprone-reserved-identifier]
// CHECK-FIXES: int __;
int _________;
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: declaration uses identifier '_________', which is a reserved identifier; cannot be fixed automatically [bugprone-reserved-identifier]
// CHECK-FIXES: int _________;
int _;
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: declaration uses identifier '_', which is reserved in the global namespace; cannot be fixed automatically [bugprone-reserved-identifier]
// CHECK-FIXES: int _;
// This should not trigger a warning
// https://github.com/llvm/llvm-project/issues/52895
#define _5_kmph_rpm 459
// these should pass
#define MACRO(m) int m = 0
namespace Ns {
class Object {
int Member;
};
float Global;
void Function() {}
using Alias = int;
template <typename TemplateParam>
struct S {};
} // namespace Ns
namespace ns_ {
class object_ {
int member_;
};
float global_;
void function_() {}
using alias_ = int;
template <typename templateParam_>
struct S {};
} // namespace ns_
class object_ {
int member_;
};
float global_;
void function_() {}
using alias_ = int;
template <typename templateParam_>
struct S_ {};