fuzz.h

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// Copyright (c) 2009-2021 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_TEST_FUZZ_FUZZ_H
#define BITCOIN_TEST_FUZZ_FUZZ_H
 
#include <cstdint>
#include <functional>
#include <span>
#include <string_view>
 
#define LIMITED_WHILE(condition, limit) \
    for (unsigned _count{limit}; (condition) && _count; --_count)
 
using FuzzBufferType = std::span<const uint8_t>;
 
using TypeTestOneInput = std::function<void(FuzzBufferType)>;
struct FuzzTargetOptions {
    std::function<void()> init{[] {}};
    bool hidden{false};
};
 
void FuzzFrameworkRegisterTarget(std::string_view name, TypeTestOneInput target, FuzzTargetOptions opts);
 
#define FUZZ_TARGET(...) DETAIL_FUZZ(__VA_ARGS__)
 
#define DETAIL_FUZZ(name, ...)                                                        \
    void name##_fuzz_target(FuzzBufferType);                                          \
    struct name##_Before_Main {                                                       \
        name##_Before_Main()                                                          \
        {                                                                             \
            FuzzFrameworkRegisterTarget(#name, name##_fuzz_target, {__VA_ARGS__});    \
        }                                                                             \
    } const static g_##name##_before_main;                                            \
    void name##_fuzz_target(FuzzBufferType buffer)
 
#endif // BITCOIN_TEST_FUZZ_FUZZ_H