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//
// immer: immutable data structures for C++
// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
//
// This software is distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
//
#include "fuzzer_input.hpp"
#include <immer/vector.hpp>
#include <array>
using st_memory = immer::memory_policy<immer::heap_policy<immer::cpp_heap>,
immer::unsafe_refcount_policy,
immer::no_lock_policy,
immer::no_transience_policy,
false>;
extern "C" int LLVMFuzzerTestOneInput(const std::uint8_t* data,
std::size_t size)
{
constexpr auto var_count = 4;
constexpr auto bits = 2;
using vector_t = immer::vector<int, st_memory, bits, bits>;
using size_t = std::uint8_t;
auto vars = std::array<vector_t, var_count>{};
auto is_valid_var = [&](auto idx) { return idx >= 0 && idx < var_count; };
auto is_valid_index = [](auto& v) {
return [&](auto idx) { return idx >= 0 && idx < v.size(); };
};
auto is_valid_size = [](auto& v) {
return [&](auto idx) { return idx >= 0 && idx <= v.size(); };
};
return fuzzer_input{data, size}.run([&](auto& in) {
enum ops
{
op_push_back,
op_update,
op_take,
op_push_back_move,
op_update_move,
op_take_move,
};
auto src = read<char>(in, is_valid_var);
auto dst = read<char>(in, is_valid_var);
switch (read<char>(in)) {
case op_push_back: {
vars[dst] = vars[src].push_back(42);
break;
}
case op_update: {
auto idx = read<size_t>(in, is_valid_index(vars[src]));
vars[dst] = vars[src].update(idx, [](auto x) { return x + 1; });
break;
}
case op_take: {
auto idx = read<size_t>(in, is_valid_size(vars[src]));
vars[dst] = vars[src].take(idx);
break;
}
case op_push_back_move: {
vars[dst] = std::move(vars[src]).push_back(12);
break;
}
case op_update_move: {
auto idx = read<size_t>(in, is_valid_index(vars[src]));
vars[dst] =
std::move(vars[src]).update(idx, [](auto x) { return x + 1; });
break;
}
case op_take_move: {
auto idx = read<size_t>(in, is_valid_size(vars[src]));
vars[dst] = std::move(vars[src]).take(idx);
break;
}
default:
break;
};
return true;
});
}
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