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90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2019 Telegram Systems LLP
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*/
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#pragma once
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#include "common/refcnt.hpp"
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#include "common/bitstring.h"
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#include "vm/cells/CellHash.h"
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#include "vm/cells/CellTraits.h"
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#include "vm/cells/CellUsageTree.h"
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#include "vm/cells/LevelMask.h"
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#include "vm/cells/VirtualizationParameters.h"
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#include "td/utils/Status.h"
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#include <iostream>
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namespace vm {
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using td::Ref;
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class DataCell;
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class Cell : public CellTraits {
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public:
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using LevelMask = detail::LevelMask;
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using VirtualizationParameters = detail::VirtualizationParameters;
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struct LoadedCell {
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Ref<DataCell> data_cell;
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VirtualizationParameters virt;
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CellUsageTree::NodePtr tree_node; // TODO: inline_vector?
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};
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using Hash = CellHash;
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static_assert(std::is_standard_layout<Hash>::value, "Cell::Hash is not a standard layout type");
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static_assert(sizeof(Hash) == hash_bytes, "Cell::Hash size is not equal to hash_bytes");
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//typedef td::BitArray<hash_bits> hash_t;
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Cell* make_copy() const final {
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throw WriteError();
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}
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// load interface
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virtual td::Result<LoadedCell> load_cell() const = 0;
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virtual Ref<Cell> virtualize(VirtualizationParameters virt) const;
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virtual td::uint32 get_virtualization() const = 0;
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virtual CellUsageTree::NodePtr get_tree_node() const = 0;
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virtual bool is_loaded() const = 0;
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// hash and level
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virtual LevelMask get_level_mask() const = 0;
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// level helper function
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td::uint32 get_level() const {
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return get_level_mask().get_level();
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}
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// hash helper functions
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const Hash get_hash(int level = max_level) const {
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return do_get_hash(level);
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}
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// depth helper function
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td::uint16 get_depth(int level = max_level) const {
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return do_get_depth(level);
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}
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td::Status check_equals_unloaded(const Ref<Cell>& other) const;
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private:
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virtual td::uint16 do_get_depth(td::uint32 level) const = 0;
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virtual const Hash do_get_hash(td::uint32 level) const = 0;
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};
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std::ostream& operator<<(std::ostream& os, const Cell& c);
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} // namespace vm
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