chromium/third_party/fuzztest/src/fuzztest/internal/domains/variant_of_impl.h

// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef FUZZTEST_FUZZTEST_INTERNAL_DOMAINS_VARIANT_OF_IMPL_H_
#define FUZZTEST_FUZZTEST_INTERNAL_DOMAINS_VARIANT_OF_IMPL_H_

#include <cstddef>
#include <optional>
#include <tuple>
#include <utility>
#include <variant>

#include "absl/random/bit_gen_ref.h"
#include "absl/random/distributions.h"
#include "absl/status/status.h"
#include "./fuzztest/internal/domains/domain_base.h"
#include "./fuzztest/internal/domains/serialization_helpers.h"
#include "./fuzztest/internal/meta.h"
#include "./fuzztest/internal/serialization.h"
#include "./fuzztest/internal/status.h"
#include "./fuzztest/internal/type_support.h"

namespace fuzztest::internal {

template <typename T, typename... Inner>
class VariantOfImpl : public domain_implementor::DomainBase<
                          VariantOfImpl<T, Inner...>, T,
                          // `T` might be a custom variant type. We use
                          // std::variant unconditionally to make it simpler.
                          std::variant<corpus_type_t<Inner>...>> { … };

}  // namespace fuzztest::internal

#endif  // FUZZTEST_FUZZTEST_INTERNAL_DOMAINS_VARIANT_OF_IMPL_H_