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@ -3,6 +3,10 @@
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#include <csignal> // raise |
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#include <cstdint> // uint32_t |
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#include <cstdio> // fflush |
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#include <cstring> // strlen |
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#include <fstream> // ifstream |
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#include <string> |
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#include "inferno/core.h" |
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#include "inferno/io/log.h" |
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@ -15,50 +19,98 @@
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#ifdef NF_ENABLE_ASSERTS |
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// Check if SIGTRAP is available
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#ifdef SIGTRAP |
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#define ABORT_SIGNAL SIGTRAP |
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#define ABORT_SIGNAL SIGTRAP // POSIX
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#else |
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#define ABORT_SIGNAL SIGABRT |
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#define ABORT_SIGNAL SIGABRT // C99
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#endif |
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// Non-standard function macro
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#ifdef GCC |
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#define FUNCTION_MACRO __PRETTY_FUNCTION__ |
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#define FUNCTION_MACRO __PRETTY_FUNCTION__ // GCC extension
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#elif MSVC |
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#define FUNCTION_MACRO __FUNCSIG__ |
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#else |
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#define FUNCTION_MACRO __func__ |
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#define FUNCTION_MACRO __func__ // C99
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#endif |
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// ##__VA_ARGS__ is a non-standard GCC extension, C++20 introduces __VA_OPT__
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// https://stackoverflow.com/questions/52891546/what-does-va-args-mean
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#define ASSERT(expr, ...) static_cast<bool>(expr) ? (void)0 : Inferno::__assert_fail(#expr, __FILE__, __LINE__, FUNCTION_MACRO, ##__VA_ARGS__) |
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#define ASSERT(expr, ...) (static_cast<bool>(expr) ? (void)0 : Inferno::__assert_fail(#expr, __FILE__, __LINE__, FUNCTION_MACRO, ##__VA_ARGS__)) |
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#define ASSERT_NOT_REACHED() ASSERT(false) |
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#else |
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#define ASSERT(expr, ...) |
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#define ASSERT(expr, ...) (static_cast<void>(0)) |
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#define ASSERT_NOT_REACHED() CRASH() |
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#endif |
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#define CRASH() raise(SIGABRT) |
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#define CRASH() Inferno::__crash(); |
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// https://stackoverflow.com/questions/1440570/likely-unlikely-equivalent-for-msvc
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namespace Inferno { |
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inline void __crash() |
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{ |
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asm volatile("int $0x03"); |
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} |
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// FIXME: Doesnt print to stderr
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#ifdef NF_ENABLE_ASSERTS |
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template<typename... P> |
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inline void __assert_fail(const char* assertion, const char* file, uint32_t line, const char* function, P&&... parameters) |
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{ |
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dangerln(false, "ASSERTION `{}' FAILED.", assertion); |
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(void)function; |
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// Get the line that caused the error
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std::ifstream source(file); |
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std::string content; |
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if (source.is_open()) { |
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for (uint32_t i = 0; std::getline(source, content); ++i) { |
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if (i == line - 1) { |
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break; |
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} |
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} |
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} |
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// Replace tab indentation with spaces
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size_t tabs = content.find_first_not_of('\t'); |
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if (tabs > 0 && tabs < content.size()) { |
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content = std::string(tabs * 4, ' ') + content.substr(tabs); |
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} |
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// Find the assertion in the line
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size_t column = content.find_first_of(assertion); |
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size_t assertionLength = strlen(assertion); |
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if (column == std::string::npos) { |
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column = content.find_first_not_of(' '); |
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assertionLength = content.length() - column; |
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} |
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// Error message
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dbgln(false, "\033[0;1m{}:{}:{}: ", file, line, column + 1); |
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dangerln(false, "error: "); |
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dbgln(false, "assertion failed"); |
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if (sizeof...(P) > 0) { |
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dbg(false) << " "; |
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dbgln(Log::Danger, false, std::forward<P>(parameters)...); |
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dbgln(false, ": "); |
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dbgln(Log::None, false, std::forward<P>(parameters)...); |
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} |
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danger() << "\n " << file << ":" << line << " in " << function; |
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// Code line
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dbgln("\n {} | {}\033[31;1m{}\033[0m{}", line, |
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content.substr(0, column), // Whitespace at front
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content.substr(column, assertionLength), // Error portion
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content.substr(column + assertionLength)); // Rest of the line
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raise(ABORT_SIGNAL); |
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// Arrow pointer
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dbgln(" {} | {}\033[31;1m^{}\033[0m", |
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std::string(std::to_string(line).length(), ' '), // Line number spacing
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std::string(column, ' '), // Content spacing
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std::string(assertionLength - 1, '~')); // Arrow pointer
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fflush(stdout); // FIXME: stdout is buffered, strerr is not so wouldnt need this
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CRASH(); |
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} |
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#endif |
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} |
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#endif // ASSERT_H
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// https://github.com/scottt/debugbreak
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Riyyi
2 years ago
