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author | Vincent Ambo <mail@tazj.in> | 2020-07-15T07·20+0100 |
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committer | Vincent Ambo <mail@tazj.in> | 2020-07-15T07·23+0100 |
commit | 1213b086a1015a662ab7ebd658f784534fd3116a (patch) | |
tree | d3bc8f3b7f40b8b60f0ef6fbd649cf765f4fdfb6 /third_party/immer/extra/fuzzer/array.cpp | |
parent | 1390827b9ea1e04bc9863e48930bfd16db3b716e (diff) | |
parent | 7f19d641647ac4ef313ed88d6b5c140983ce5436 (diff) |
merge(3p/immer): Subtree merge at 'ad3e3556d' as 'third_party/immer' r/1299
Change-Id: I9636a41ad44b4218293833fd3e9456d9b07c731b
Diffstat (limited to 'third_party/immer/extra/fuzzer/array.cpp')
-rw-r--r-- | third_party/immer/extra/fuzzer/array.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/third_party/immer/extra/fuzzer/array.cpp b/third_party/immer/extra/fuzzer/array.cpp new file mode 100644 index 000000000000..094d97b7f425 --- /dev/null +++ b/third_party/immer/extra/fuzzer/array.cpp @@ -0,0 +1,80 @@ +// +// 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/array.hpp> + +#include <array> + +extern "C" int LLVMFuzzerTestOneInput(const std::uint8_t* data, + std::size_t size) +{ + constexpr auto var_count = 4; + + using array_t = immer::array<int, immer::default_memory_policy>; + using size_t = std::uint8_t; + + auto vars = std::array<array_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; + }); +} |