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Added libfmt formatters for stacktrace.

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Patrick 2023-11-16 23:39:33 +01:00
parent 55486b49dc
commit a92148aac1
1 changed files with 55 additions and 0 deletions
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55
source/mijin/debug/stacktrace.hpp
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@ -7,6 +7,9 @@
#include <cmath>
#include <iomanip>
#include <vector>
#if __has_include(<fmt/format.h>)
# include <fmt/format.h>
#endif
#include "./symbol_info.hpp"
#include "../types/result.hpp"
#include "../util/iterators.hpp"
@ -82,4 +85,56 @@ TStream& operator<<(TStream& stream, const Stacktrace& stacktrace)
} // namespace mijin
#if __has_include(<fmt/format.h>)
template<>
struct fmt::formatter<mijin::Stackframe>
{
constexpr auto parse(format_parse_context& ctx) -> decltype(ctx.begin())
{
auto it = ctx.begin();
auto end = ctx.end();
if (it != end && *it != '}') throw format_error("invalid format");
return it;
}
template<typename TContext>
auto format(const mijin::Stackframe& stackframe, TContext& ctx) const -> decltype(ctx.out())
{
auto it = ctx.out();
it = fmt::format_to(it, "[{}] {}:{} in {}", stackframe.address, stackframe.filename,
stackframe.lineNumber, mijin::demangleCPPIdentifier(stackframe.function.c_str()));
return it;
}
};
template<>
struct fmt::formatter<mijin::Stacktrace>
{
constexpr auto parse(format_parse_context& ctx) -> decltype(ctx.begin())
{
auto it = ctx.begin();
auto end = ctx.end();
if (it != end && *it != '}') throw format_error("invalid format");
return it;
}
template<typename TContext>
auto format(const mijin::Stacktrace& stacktrace, TContext& ctx) const -> decltype(ctx.out())
{
const int numDigits = static_cast<int>(std::ceil(std::log10(stacktrace.getFrames().size())));
auto it = ctx.out();
it = fmt::format_to(it, "[{} frames]", stacktrace.getFrames().size());
for (const auto& [idx, frame] : mijin::enumerate(stacktrace.getFrames()))
{
it = fmt::format_to(it, "\n #{:<{}} at {}", idx, numDigits, frame);
}
return it;
}
};
#endif // __has_include(<fmt/format.h>)
#endif // !defined(MIJIN_DEBUG_STACKTRACE_HPP_INCLUDED)