git / moonbite-core / src/util/check.h · raw

// Copyright (c) 2019 The Bitcoin Core developers// Distributed under the MIT software license, see the accompanying// file COPYING or http://www.opensource.org/licenses/mit-license.php.#ifndef BITCOIN_UTIL_CHECK_H#define BITCOIN_UTIL_CHECK_H#if defined(HAVE_CONFIG_H)#include <config/bitcoin-config.h>#endif#include <tinyformat.h>#include <stdexcept>class NonFatalCheckError : public std::runtime_error{    using std::runtime_error::runtime_error;};/** * Throw a NonFatalCheckError when the condition evaluates to false * * This should only be used * - where the condition is assumed to be true, not for error handling or validating user input * - where a failure to fulfill the condition is recoverable and does not abort the program * * For example in RPC code, where it is undesirable to crash the whole program, this can be generally used to replace * asserts or recoverable logic errors. A NonFatalCheckError in RPC code is caught and passed as a string to the RPC * caller, which can then report the issue to the developers. */#define CHECK_NONFATAL(condition)                                 \    do {                                                          \        if (!(condition)) {                                       \            throw NonFatalCheckError(                             \                strprintf("%s:%d (%s)\n"                          \                          "Internal bug detected: '%s'\n"         \                          "You may report this issue here: %s\n", \                    __FILE__, __LINE__, __func__,                 \                    (#condition),                                 \                    PACKAGE_BUGREPORT));                          \        }                                                         \    } while (false)#if defined(NDEBUG)#error "Cannot compile without assertions!"#endif/** Helper for Assert(). TODO remove in C++14 and replace `decltype(get_pure_r_value(val))` with `T` (templated lambda) */template <typename T>T get_pure_r_value(T&& val){    return std::forward<T>(val);}/** Identity function. Abort if the value compares equal to zero */#define Assert(val) [&]() -> decltype(get_pure_r_value(val)) { auto&& check = (val); assert(#val && check); return std::forward<decltype(get_pure_r_value(val))>(check); }()#endif // BITCOIN_UTIL_CHECK_H