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Use intrinsics for source location if available (#5449) 

Sometimes the compiler supports the intrinsic even if the C++ runtime
doesnt yet.
This commit is contained in:
Paul Fultz II 2023-09-15 10:18:08 -05:00 committed by GitHub
parent 50ba5061c7
commit df4457e895
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 35 additions and 3 deletions
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38
lib/sourcelocation.h
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@ -19,10 +19,20 @@
#ifndef sourcelocationH
#define sourcelocationH
#ifndef __has_builtin
#define __has_builtin(x) 0 // Compatibility with non-clang compilers.
#endif
#ifndef __has_include
#define __has_include(x) 0 // Compatibility with non-clang compilers.
#endif
#ifdef __CPPCHECK__
#define CPPCHECK_HAS_SOURCE_LOCATION 0
#define CPPCHECK_HAS_SOURCE_LOCATION_TS 0
#elif defined(__has_include)
#define CPPCHECK_HAS_SOURCE_LOCATION_INTRINSICS 0
#else
#if __has_include(<source_location>) && __cplusplus >= 202003L
#define CPPCHECK_HAS_SOURCE_LOCATION 1
#else
@ -33,9 +43,16 @@
#else
#define CPPCHECK_HAS_SOURCE_LOCATION_TS 0
#endif
#if __has_builtin(__builtin_FILE)
#define CPPCHECK_HAS_SOURCE_LOCATION_INTRINSICS 1
#if !__has_builtin(__builtin_COLUMN)
#define __builtin_COLUMN() 0
#endif
#else
#define CPPCHECK_HAS_SOURCE_LOCATION 0
#define CPPCHECK_HAS_SOURCE_LOCATION_TS 0
#define CPPCHECK_HAS_SOURCE_LOCATION_INTRINSICS 0
#endif
#endif
#if CPPCHECK_HAS_SOURCE_LOCATION
@ -47,9 +64,24 @@ using SourceLocation = std::experimental::source_location;
#else
#include <cstdint>
struct SourceLocation {
#if CPPCHECK_HAS_SOURCE_LOCATION_INTRINSICS
static SourceLocation current(std::uint_least32_t line = __builtin_LINE(),
std::uint_least32_t column = __builtin_COLUMN(),
const char* file_name = __builtin_FILE(),
const char* function_name = __builtin_FUNCTION())
{
SourceLocation result{};
result.m_line = line;
result.m_column = column;
result.m_file_name = file_name;
result.m_function_name = function_name;
return result;
}
#else
static SourceLocation current() {
return SourceLocation();
}
#endif
std::uint_least32_t m_line = 0;
std::uint_least32_t m_column = 0;
const char* m_file_name = "";