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#ifndef CPPTRACE_EXCEPTIONS_HPP
#define CPPTRACE_EXCEPTIONS_HPP
#include <cpptrace/basic.hpp>
#include <cpptrace/exceptions_macros.hpp>
#include <exception>
#include <system_error>
#ifdef _MSC_VER
#pragma warning(push)
// warning C4251: using non-dll-exported type in dll-exported type, firing on std::vector<frame_ptr> and others for some
// reason
// 4275 is the same thing but for base classes
#pragma warning(disable: 4251; disable: 4275)
#endif
CPPTRACE_BEGIN_NAMESPACE
// tracing exceptions:
namespace detail {
// This is a helper utility, if the library weren't C++11 an std::variant would be used
class CPPTRACE_EXPORT lazy_trace_holder {
bool resolved;
union {
raw_trace trace;
stacktrace resolved_trace;
};
public:
// constructors
lazy_trace_holder() : resolved(false), trace() {}
explicit lazy_trace_holder(raw_trace&& _trace) : resolved(false), trace(std::move(_trace)) {}
explicit lazy_trace_holder(stacktrace&& _resolved_trace) : resolved(true), resolved_trace(std::move(_resolved_trace)) {}
// logistics
lazy_trace_holder(const lazy_trace_holder& other);
lazy_trace_holder(lazy_trace_holder&& other) noexcept;
lazy_trace_holder& operator=(const lazy_trace_holder& other);
lazy_trace_holder& operator=(lazy_trace_holder&& other) noexcept;
~lazy_trace_holder();
// access
const raw_trace& get_raw_trace() const;
stacktrace& get_resolved_trace();
const stacktrace& get_resolved_trace() const;
bool is_resolved() const;
private:
void clear();
};
CPPTRACE_EXPORT raw_trace get_raw_trace_and_absorb(std::size_t skip, std::size_t max_depth);
CPPTRACE_EXPORT raw_trace get_raw_trace_and_absorb(std::size_t skip = 0);
}
// Interface for a traced exception object
class CPPTRACE_EXPORT exception : public std::exception {
public:
const char* what() const noexcept override = 0;
virtual const char* message() const noexcept = 0;
virtual const stacktrace& trace() const noexcept = 0;
};
// Cpptrace traced exception object
// I hate to have to expose anything about implementation detail but the idea here is that
class CPPTRACE_EXPORT lazy_exception : public exception {
mutable detail::lazy_trace_holder trace_holder;
mutable std::string what_string;
public:
explicit lazy_exception(
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) : trace_holder(std::move(trace)) {}
// std::exception
const char* what() const noexcept override;
// cpptrace::exception
const char* message() const noexcept override;
const stacktrace& trace() const noexcept override;
};
class CPPTRACE_EXPORT exception_with_message : public lazy_exception {
mutable std::string user_message;
public:
explicit exception_with_message(
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept : lazy_exception(std::move(trace)), user_message(std::move(message_arg)) {}
const char* message() const noexcept override;
};
class CPPTRACE_EXPORT logic_error : public exception_with_message {
public:
explicit logic_error(
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept
: exception_with_message(std::move(message_arg), std::move(trace)) {}
};
class CPPTRACE_EXPORT domain_error : public exception_with_message {
public:
explicit domain_error(
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept
: exception_with_message(std::move(message_arg), std::move(trace)) {}
};
class CPPTRACE_EXPORT invalid_argument : public exception_with_message {
public:
explicit invalid_argument(
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept
: exception_with_message(std::move(message_arg), std::move(trace)) {}
};
class CPPTRACE_EXPORT length_error : public exception_with_message {
public:
explicit length_error(
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept
: exception_with_message(std::move(message_arg), std::move(trace)) {}
};
class CPPTRACE_EXPORT out_of_range : public exception_with_message {
public:
explicit out_of_range(
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept
: exception_with_message(std::move(message_arg), std::move(trace)) {}
};
class CPPTRACE_EXPORT runtime_error : public exception_with_message {
public:
explicit runtime_error(
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept
: exception_with_message(std::move(message_arg), std::move(trace)) {}
};
class CPPTRACE_EXPORT range_error : public exception_with_message {
public:
explicit range_error(
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept
: exception_with_message(std::move(message_arg), std::move(trace)) {}
};
class CPPTRACE_EXPORT overflow_error : public exception_with_message {
public:
explicit overflow_error(
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept
: exception_with_message(std::move(message_arg), std::move(trace)) {}
};
class CPPTRACE_EXPORT underflow_error : public exception_with_message {
public:
explicit underflow_error(
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept
: exception_with_message(std::move(message_arg), std::move(trace)) {}
};
class CPPTRACE_EXPORT nested_exception : public lazy_exception {
std::exception_ptr ptr;
mutable std::string message_value;
public:
explicit nested_exception(
const std::exception_ptr& exception_ptr,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept
: lazy_exception(std::move(trace)), ptr(exception_ptr) {}
const char* message() const noexcept override;
std::exception_ptr nested_ptr() const noexcept;
};
class CPPTRACE_EXPORT system_error : public runtime_error {
std::error_code ec;
public:
explicit system_error(
int error_code,
std::string&& message_arg,
raw_trace&& trace = detail::get_raw_trace_and_absorb()
) noexcept;
const std::error_code& code() const noexcept;
};
// [[noreturn]] must come first due to old clang
[[noreturn]] CPPTRACE_EXPORT void rethrow_and_wrap_if_needed(std::size_t skip = 0);
CPPTRACE_END_NAMESPACE
#ifdef _MSC_VER
#pragma warning(pop)
#endif
#endif