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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	debug_utils-inl.h	Lines:	75	80	93.8 %
Date:	2022-09-07 04:19:57	Branches:	205	265	77.4 %


#ifndef SRC_DEBUG_UTILS_INL_H_
#define SRC_DEBUG_UTILS_INL_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "debug_utils.h"
#include "env.h"

#include <type_traits>

namespace node {

struct ToStringHelper {
  template <typename T>
  static std::string Convert(
      const T& value,
      std::string(T::* to_string)() const = &T::ToString) {
    return (value.*to_string)();
  }
  template <typename T,
            typename test_for_number = typename std::
                enable_if<std::is_arithmetic<T>::value, bool>::type,
            typename dummy = bool>
  static std::string Convert(const T& value) { return std::to_string(value); }
  static std::string Convert(const char* value) {
    return value != nullptr ? value : "(null)";
  }
  static std::string Convert(const std::string& value) { return value; }
  static std::string Convert(bool value) { return value ? "true" : "false"; }
  template <unsigned BASE_BITS,
            typename T,
            typename = std::enable_if_t<std::is_integral_v<T>>>
  static std::string BaseConvert(const T& value) {
    auto v = static_cast<uint64_t>(value);
    char ret[3 * sizeof(T)];
    char* ptr = ret + 3 * sizeof(T) - 1;
    *ptr = '\0';
    const char* digits = "0123456789abcdef";
    do {
      unsigned digit = v & ((1 << BASE_BITS) - 1);
      *--ptr =
          (BASE_BITS < 4 ? static_cast<char>('0' + digit) : digits[digit]);
    } while ((v >>= BASE_BITS) != 0);
    return ptr;
  }
  template <unsigned BASE_BITS,
            typename T,
            typename = std::enable_if_t<!std::is_integral_v<T>>>
  static std::string BaseConvert(T value) {
    return Convert(std::forward<T>(value));
  }
};

template <typename T>
std::string ToString(const T& value) {
  return ToStringHelper::Convert(value);
}

template <unsigned BASE_BITS, typename T>
std::string ToBaseString(const T& value) {
  return ToStringHelper::BaseConvert<BASE_BITS>(value);
}

inline std::string SPrintFImpl(const char* format) {
  const char* p = strchr(format, '%');
  if (LIKELY(p == nullptr)) return format;
  CHECK_EQ(p[1], '%');  // Only '%%' allowed when there are no arguments.

  return std::string(format, p + 1) + SPrintFImpl(p + 2);
}

template <typename Arg, typename... Args>
std::string COLD_NOINLINE SPrintFImpl(  // NOLINT(runtime/string)
    const char* format, Arg&& arg, Args&&... args) {
  const char* p = strchr(format, '%');
  CHECK_NOT_NULL(p);  // If you hit this, you passed in too many arguments.
  std::string ret(format, p);
  // Ignore long / size_t modifiers
  while (strchr("lz", *++p) != nullptr) {}
  switch (*p) {
    case '%': {
      return ret + '%' + SPrintFImpl(p + 1,
                                     std::forward<Arg>(arg),
                                     std::forward<Args>(args)...);
    }
    default: {
      return ret + '%' + SPrintFImpl(p,
                                     std::forward<Arg>(arg),
                                     std::forward<Args>(args)...);
    }
    case 'd':
    case 'i':
    case 'u':
    case 's':
      ret += ToString(arg);
      break;
    case 'o':
      ret += ToBaseString<3>(arg);
      break;
    case 'x':
      ret += ToBaseString<4>(arg);
      break;
    case 'X':
      ret += node::ToUpper(ToBaseString<4>(arg));
      break;
    case 'p': {
      CHECK(std::is_pointer<typename std::remove_reference<Arg>::type>::value);
      char out[20];
      int n = snprintf(out,
                       sizeof(out),
                       "%p",
                       *reinterpret_cast<const void* const*>(&arg));
      CHECK_GE(n, 0);
      ret += out;
      break;
    }
  }
  return ret + SPrintFImpl(p + 1, std::forward<Args>(args)...);
}

template <typename... Args>
std::string COLD_NOINLINE SPrintF(  // NOLINT(runtime/string)
    const char* format, Args&&... args) {
  return SPrintFImpl(format, std::forward<Args>(args)...);
}

template <typename... Args>
void COLD_NOINLINE FPrintF(FILE* file, const char* format, Args&&... args) {
  FWrite(file, SPrintF(format, std::forward<Args>(args)...));
}

template <typename... Args>
inline void FORCE_INLINE Debug(EnabledDebugList* list,
                               DebugCategory cat,
                               const char* format,
                               Args&&... args) {
  if (!UNLIKELY(list->enabled(cat))) return;
  FPrintF(stderr, format, std::forward<Args>(args)...);
}

inline void FORCE_INLINE Debug(EnabledDebugList* list,
                               DebugCategory cat,
                               const char* message) {
  if (!UNLIKELY(list->enabled(cat))) return;
  FPrintF(stderr, "%s", message);
}

template <typename... Args>
inline void FORCE_INLINE
Debug(Environment* env, DebugCategory cat, const char* format, Args&&... args) {
  Debug(env->enabled_debug_list(), cat, format, std::forward<Args>(args)...);
}

inline void FORCE_INLINE Debug(Environment* env,
                               DebugCategory cat,
                               const char* message) {
  Debug(env->enabled_debug_list(), cat, message);
}

template <typename... Args>
inline void Debug(Environment* env,
                  DebugCategory cat,
                  const std::string& format,
                  Args&&... args) {
  Debug(env->enabled_debug_list(),
        cat,
        format.c_str(),
        std::forward<Args>(args)...);
}

// Used internally by the 'real' Debug(AsyncWrap*, ...) functions below, so that
// the FORCE_INLINE flag on them doesn't apply to the contents of this function
// as well.
// We apply COLD_NOINLINE to tell the compiler that it's not worth optimizing
// this function for speed and it should rather focus on keeping it out of
// hot code paths. In particular, we want to keep the string concatenating code
// out of the function containing the original `Debug()` call.
template <typename... Args>
void COLD_NOINLINE UnconditionalAsyncWrapDebug(AsyncWrap* async_wrap,
                                               const char* format,
                                               Args&&... args) {
  Debug(async_wrap->env(),
        static_cast<DebugCategory>(async_wrap->provider_type()),
        async_wrap->diagnostic_name() + " " + format + "\n",
        std::forward<Args>(args)...);
}

template <typename... Args>
inline void FORCE_INLINE Debug(AsyncWrap* async_wrap,
                               const char* format,
                               Args&&... args) {
  DCHECK_NOT_NULL(async_wrap);
  DebugCategory cat = static_cast<DebugCategory>(async_wrap->provider_type());
  if (!UNLIKELY(async_wrap->env()->enabled_debug_list()->enabled(cat))) return;
  UnconditionalAsyncWrapDebug(async_wrap, format, std::forward<Args>(args)...);
}

template <typename... Args>
inline void FORCE_INLINE Debug(AsyncWrap* async_wrap,
                               const std::string& format,
                               Args&&... args) {
  Debug(async_wrap, format.c_str(), std::forward<Args>(args)...);
}

namespace per_process {

template <typename... Args>
inline void FORCE_INLINE Debug(DebugCategory cat,
                               const char* format,
                               Args&&... args) {
  Debug(&enabled_debug_list, cat, format, std::forward<Args>(args)...);
}

inline void FORCE_INLINE Debug(DebugCategory cat, const char* message) {
  Debug(&enabled_debug_list, cat, message);
}

}  // namespace per_process
}  // namespace node

#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#endif  // SRC_DEBUG_UTILS_INL_H_


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			#ifndef SRC_DEBUG_UTILS_INL_H_
2			#define SRC_DEBUG_UTILS_INL_H_
3
4			#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
5
6			#include "debug_utils.h"
7			#include "env.h"
8
9			#include <type_traits>
10
11			namespace node {
12
13			struct ToStringHelper {
14			template <typename T>
15		962	static std::string Convert(
16			const T& value,
17			std::string(T::* to_string)() const = &T::ToString) {
18	✗✓	962	return (value.*to_string)();
19			}
20			template <typename T,
21			typename test_for_number = typename std::
22			enable_if<std::is_arithmetic<T>::value, bool>::type,
23			typename dummy = bool>
24		52996	static std::string Convert(const T& value) { return std::to_string(value); }
25		2840	static std::string Convert(const char* value) {
26	✓✓	2840	return value != nullptr ? value : "(null)";
27			}
28		6121	static std::string Convert(const std::string& value) { return value; }
29	✓✓	53	static std::string Convert(bool value) { return value ? "true" : "false"; }
30			template <unsigned BASE_BITS,
31			typename T,
32			typename = std::enable_if_t<std::is_integral_v<T>>>
33		12	static std::string BaseConvert(const T& value) {
34		12	auto v = static_cast<uint64_t>(value);
35			char ret[3 * sizeof(T)];
36		12	char* ptr = ret + 3 * sizeof(T) - 1;
37		12	*ptr = '\0';
38		12	const char* digits = "0123456789abcdef";
39		6	do {
40		18	unsigned digit = v & ((1 << BASE_BITS) - 1);
41		18	*--ptr =
42		6	(BASE_BITS < 4 ? static_cast<char>('0' + digit) : digits[digit]);
43	✓✓	18	} while ((v >>= BASE_BITS) != 0);
44		12	return ptr;
45			}
46			template <unsigned BASE_BITS,
47			typename T,
48			typename = std::enable_if_t<!std::is_integral_v<T>>>
49			static std::string BaseConvert(T value) {
50			return Convert(std::forward<T>(value));
51			}
52			};
53
54			template <typename T>
55		64539	std::string ToString(const T& value) {
56		64539	return ToStringHelper::Convert(value);
57			}
58
59			template <unsigned BASE_BITS, typename T>
60		12	std::string ToBaseString(const T& value) {
61		12	return ToStringHelper::BaseConvert<BASE_BITS>(value);
62			}
63
64		16501	inline std::string SPrintFImpl(const char* format) {
65		16501	const char* p = strchr(format, '%');
66	✓✓	16501	if (LIKELY(p == nullptr)) return format;
67	✗✓	1	CHECK_EQ(p[1], '%'); // Only '%%' allowed when there are no arguments.
68
69		1	return std::string(format, p + 1) + SPrintFImpl(p + 2);
70			}
71
72			template <typename Arg, typename... Args>
73		71425	std::string COLD_NOINLINE SPrintFImpl( // NOLINT(runtime/string)
74			const char* format, Arg&& arg, Args&&... args) {
75		71425	const char* p = strchr(format, '%');
76	✗✓	71425	CHECK_NOT_NULL(p); // If you hit this, you passed in too many arguments.
77		214275	std::string ret(format, p);
78			// Ignore long / size_t modifiers
79	✓✓	71547	while (strchr("lz", *++p) != nullptr) {}
80	✓✗✓✓ ✓✓✓	71425	switch (*p) {
81		2	case '%': {
82			return ret + '%' + SPrintFImpl(p + 1,
83			std::forward<Arg>(arg),
84		2	std::forward<Args>(args)...);
85			}
86			default: {
87			return ret + '%' + SPrintFImpl(p,
88			std::forward<Arg>(arg),
89			std::forward<Args>(args)...);
90			}
91		71407	case 'd':
92			case 'i':
93			case 'u':
94			case 's':
95		71407	ret += ToString(arg);
96		71407	break;
97		4	case 'o':
98		4	ret += ToBaseString<3>(arg);
99		4	break;
100		4	case 'x':
101		4	ret += ToBaseString<4>(arg);
102		4	break;
103		4	case 'X':
104		4	ret += node::ToUpper(ToBaseString<4>(arg));
105		4	break;
106		4	case 'p': {
107			CHECK(std::is_pointer<typename std::remove_reference<Arg>::type>::value);
108			char out[20];
109		4	int n = snprintf(out,
110			sizeof(out),
111			"%p",
112			reinterpret_cast<const void const*>(&arg));
113	✗✓	4	CHECK_GE(n, 0);
114		4	ret += out;
115		4	break;
116			}
117			}
118		71423	return ret + SPrintFImpl(p + 1, std::forward<Args>(args)...);
119			}
120
121			template <typename... Args>
122		25763	std::string COLD_NOINLINE SPrintF( // NOLINT(runtime/string)
123			const char* format, Args&&... args) {
124		25763	return SPrintFImpl(format, std::forward<Args>(args)...);
125			}
126
127			template <typename... Args>
128		5083	void COLD_NOINLINE FPrintF(FILE* file, const char* format, Args&&... args) {
129		5083	FWrite(file, SPrintF(format, std::forward<Args>(args)...));
130		5083	}
131
132			template <typename... Args>
133			inline void FORCE_INLINE Debug(EnabledDebugList* list,
134			DebugCategory cat,
135			const char* format,
136			Args&&... args) {
137	✓✓✓✓ ✓✓✓✓ ✓✓✓✓ ✓✓✓✓ ✓✓✓✓ ✓✓✓✓ ✗✓✗✓ ✓✓✓✓ ✓✓✓✓ ✓✓✓✓ ✓✓✓✓ ✓✗✓✓ ✓✗✓✓ ✓✓✗✓ ✓✗✗✗ ✗✗✗✓ ✗✗✗✗ ✓✓✗✓ ✗✓✓✓ ✓✓✗✓	970465	if (!UNLIKELY(list->enabled(cat))) return;
138		945	FPrintF(stderr, format, std::forward<Args>(args)...);
139			}
140
141			inline void FORCE_INLINE Debug(EnabledDebugList* list,
142			DebugCategory cat,
143			const char* message) {
144	✓✓✓✓ ✓✓✓✗ ✓✗✓✗ ✓✗	7006	if (!UNLIKELY(list->enabled(cat))) return;
145		74	FPrintF(stderr, "%s", message);
146			}
147
148			template <typename... Args>
149			inline void FORCE_INLINE
150			Debug(Environment* env, DebugCategory cat, const char* format, Args&&... args) {
151		81174	Debug(env->enabled_debug_list(), cat, format, std::forward<Args>(args)...);
152			}
153
154			inline void FORCE_INLINE Debug(Environment* env,
155			DebugCategory cat,
156			const char* message) {
157		12456	Debug(env->enabled_debug_list(), cat, message);
158			}
159
160			template <typename... Args>
161		234	inline void Debug(Environment* env,
162			DebugCategory cat,
163			const std::string& format,
164			Args&&... args) {
165		234	Debug(env->enabled_debug_list(),
166			cat,
167			format.c_str(),
168			std::forward<Args>(args)...);
169			}
170
171			// Used internally by the 'real' Debug(AsyncWrap*, ...) functions below, so that
172			// the FORCE_INLINE flag on them doesn't apply to the contents of this function
173			// as well.
174			// We apply COLD_NOINLINE to tell the compiler that it's not worth optimizing
175			// this function for speed and it should rather focus on keeping it out of
176			// hot code paths. In particular, we want to keep the string concatenating code
177			// out of the function containing the original `Debug()` call.
178			template <typename... Args>
179		234	void COLD_NOINLINE UnconditionalAsyncWrapDebug(AsyncWrap* async_wrap,
180			const char* format,
181			Args&&... args) {
182		618	Debug(async_wrap->env(),
183		234	static_cast<DebugCategory>(async_wrap->provider_type()),
184		234	async_wrap->diagnostic_name() + " " + format + "\n",
185			std::forward<Args>(args)...);
186			}
187
188			template <typename... Args>
189			inline void FORCE_INLINE Debug(AsyncWrap* async_wrap,
190			const char* format,
191			Args&&... args) {
192			DCHECK_NOT_NULL(async_wrap);
193		1295939	DebugCategory cat = static_cast<DebugCategory>(async_wrap->provider_type());
194	✓✗✓✓ ✓✗✓✗ ✓✗✓✗ ✓✗✓✓ ✓✓✓✗ ✓✓✓✓ ✓✗✓✓ ✓✓✓✓ ✓✗✓✗ ✓✗✓✗ ✓✓✓✓ ✓✓✓✓ ✓✓✓✓ ✓✗✓✓ ✓✗✓✗ ✓✗✓✗ ✓✗✓✓ ✓✓✓✓ ✓✓✓✓ ✓✓✓✗ ✓✓✓✓ ✓✓✓✓ ✓✓✓✓ ✓✓✓✓ ✓✗✓✗ ✓✗✓✓ ✓✓✓✗ ✓✗✓✓ ✓✗✓✓ ✓✗✓✓ ✓✗✓✗ ✓✗✓✓ ✓✓✓✓ ✓✗✗✗ ✓✗✓✓ ✓✓✓✓ ✓✓	2591878	if (!UNLIKELY(async_wrap->env()->enabled_debug_list()->enabled(cat))) return;
195		117	UnconditionalAsyncWrapDebug(async_wrap, format, std::forward<Args>(args)...);
196			}
197
198			template <typename... Args>
199			inline void FORCE_INLINE Debug(AsyncWrap* async_wrap,
200			const std::string& format,
201			Args&&... args) {
202			Debug(async_wrap, format.c_str(), std::forward<Args>(args)...);
203			}
204
205			namespace per_process {
206
207			template <typename... Args>
208			inline void FORCE_INLINE Debug(DebugCategory cat,
209			const char* format,
210			Args&&... args) {
211		889212	Debug(&enabled_debug_list, cat, format, std::forward<Args>(args)...);
212			}
213
214			inline void FORCE_INLINE Debug(DebugCategory cat, const char* message) {
215		12	Debug(&enabled_debug_list, cat, message);
216			}
217
218			} // namespace per_process
219			} // namespace node
220
221			#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
222
223			#endif // SRC_DEBUG_UTILS_INL_H_