object-introspection/oi/EnumBitset.h
Jake Hillion 4c6f232766 containers: add required features (#374)
Summary:
Adds the option for required features to container definitions. These cause the container not to be passed to `DrgnParser` if that feature is not enabled during code generation. The thrift isset type does not currently work with `tree-builder-v2` and only provides benefit with `capture-thrift-isset`. This change makes sure the container is ignored if it won't be useful, allowing code generation under `tree-builder-v2`.


Test Plan: - CI

Differential Revision: D49960512

Pulled By: JakeHillion
2023-10-09 17:50:39 -04:00

73 lines
1.8 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* 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.
*/
#pragma once
#include <bitset>
template <typename T, size_t N>
class EnumBitset {
private:
using BitsetType = std::bitset<N>;
public:
EnumBitset() = default;
EnumBitset(std::initializer_list<T> values) {
for (auto v : values) {
(*this)[v] = true;
}
}
constexpr bool operator[](T v) const {
return bitset[static_cast<size_t>(v)];
}
typename BitsetType::reference operator[](T v) {
return bitset[static_cast<size_t>(v)];
}
bool all() const noexcept {
return bitset.all();
}
bool any() const noexcept {
return bitset.any();
}
bool none() const noexcept {
return bitset.none();
}
bool operator==(const EnumBitset<T, N>& that) const {
return bitset == that.bitset;
}
EnumBitset<T, N>& operator|=(const EnumBitset<T, N>& that) {
bitset |= that.bitset;
return *this;
}
EnumBitset<T, N>& operator&=(const EnumBitset<T, N>& that) {
bitset &= that.bitset;
return *this;
}
private:
BitsetType bitset;
};
template <typename T, size_t N>
EnumBitset<T, N> operator&(const EnumBitset<T, N>& lhs,
const EnumBitset<T, N>& rhs) {
auto out = lhs;
out &= rhs;
return out;
}