/* This file is part of cpp-ethereum. cpp-ethereum is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. cpp-ethereum is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>. */ /** @file Exceptions.h * @author Gav Wood <i@gavwood.com> * @date 2014 */ #pragma once #include <exception> #include <string> #include <boost/exception/exception.hpp> #include <boost/exception/info.hpp> #include <boost/exception/info_tuple.hpp> #include <boost/exception/diagnostic_information.hpp> #include <boost/throw_exception.hpp> #include <boost/tuple/tuple.hpp> #include "CommonData.h" #include "FixedHash.h" namespace dev { /// Base class for all exceptions. struct Exception: virtual std::exception, virtual boost::exception { Exception(std::string _message = std::string()): m_message(std::move(_message)) {} const char* what() const noexcept override { return m_message.empty() ? std::exception::what() : m_message.c_str(); } private: std::string m_message; }; #define DEV_SIMPLE_EXCEPTION(X) struct X: virtual Exception { const char* what() const noexcept override { return #X; } } /// Base class for all RLP exceptions. struct RLPException: virtual Exception { RLPException(std::string _message = std::string()): Exception(_message) {} }; #define DEV_SIMPLE_EXCEPTION_RLP(X) struct X: virtual RLPException { const char* what() const noexcept override { return #X; } } DEV_SIMPLE_EXCEPTION_RLP(BadCast); DEV_SIMPLE_EXCEPTION_RLP(BadRLP); DEV_SIMPLE_EXCEPTION_RLP(OversizeRLP); DEV_SIMPLE_EXCEPTION_RLP(UndersizeRLP); DEV_SIMPLE_EXCEPTION(BadHexCharacter); DEV_SIMPLE_EXCEPTION(NoNetworking); DEV_SIMPLE_EXCEPTION(NoUPnPDevice); DEV_SIMPLE_EXCEPTION(RootNotFound); struct BadRoot: virtual Exception { public: BadRoot(h256 const& _root): Exception("BadRoot " + _root.hex()), root(_root) {} h256 root; }; DEV_SIMPLE_EXCEPTION(FileError); DEV_SIMPLE_EXCEPTION(Overflow); DEV_SIMPLE_EXCEPTION(FailedInvariant); DEV_SIMPLE_EXCEPTION(ValueTooLarge); struct InterfaceNotSupported: virtual Exception { public: InterfaceNotSupported(std::string _f): Exception("Interface " + _f + " not supported.") {} }; struct ExternalFunctionFailure: virtual Exception { public: ExternalFunctionFailure(std::string _f): Exception("Function " + _f + "() failed.") {} }; // error information to be added to exceptions using errinfo_invalidSymbol = boost::error_info<struct tag_invalidSymbol, char>; using errinfo_wrongAddress = boost::error_info<struct tag_address, std::string>; using errinfo_comment = boost::error_info<struct tag_comment, std::string>; using errinfo_required = boost::error_info<struct tag_required, bigint>; using errinfo_got = boost::error_info<struct tag_got, bigint>; using errinfo_min = boost::error_info<struct tag_min, bigint>; using errinfo_max = boost::error_info<struct tag_max, bigint>; using RequirementError = boost::tuple<errinfo_required, errinfo_got>; using errinfo_hash256 = boost::error_info<struct tag_hash, h256>; using errinfo_required_h256 = boost::error_info<struct tag_required_h256, h256>; using errinfo_got_h256 = boost::error_info<struct tag_get_h256, h256>; using Hash256RequirementError = boost::tuple<errinfo_required_h256, errinfo_got_h256>; using errinfo_extraData = boost::error_info<struct tag_extraData, bytes>; }