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ton/crypto/vm/cells/VirtualizationParameters.h
2019-09-07 14:33:36 +04:00

73 lines
2.2 KiB
C++

/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2019 Telegram Systems LLP
*/
#pragma once
#include "td/utils/int_types.h"
#include "td/utils/logging.h"
#include <limits>
namespace vm {
namespace detail {
class VirtualizationParameters {
public:
static constexpr td::uint8 max_level() {
return std::numeric_limits<td::uint8>::max();
}
VirtualizationParameters() = default;
VirtualizationParameters(td::uint8 level, td::uint8 virtualization) : level_(level), virtualization_(virtualization) {
CHECK(virtualization_ != 0 || empty());
}
bool empty() const {
return level_ == max_level() && virtualization_ == 0;
}
VirtualizationParameters apply(VirtualizationParameters outer) const {
if (outer.level_ >= level_) {
return *this;
}
CHECK(virtualization_ <= outer.virtualization_);
return {outer.level_, outer.virtualization_};
}
td::uint8 get_level() const {
return level_;
}
td::uint8 get_virtualization() const {
return virtualization_;
}
bool operator==(const VirtualizationParameters &other) const {
return level_ == other.level_ && virtualization_ == other.virtualization_;
}
private:
td::uint8 level_ = max_level();
td::uint8 virtualization_ = 0;
};
inline td::StringBuilder &operator<<(td::StringBuilder &sb, const VirtualizationParameters &virt) {
return sb << "{level: " << virt.get_level() << ", virtualization: " << virt.get_virtualization() << "}";
}
} // namespace detail
} // namespace vm