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51 lines
2.1 KiB
C++
51 lines
2.1 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 "vm/cells/Cell.h"
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#include "vm/cells/CellSlice.h"
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#include "vm/cells/CellBuilder.h"
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#include "td/utils/Status.h"
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#include <utility>
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namespace vm {
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class MerkleUpdate {
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public:
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// from + update == to
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static Ref<Cell> generate(Ref<Cell> from, Ref<Cell> to, CellUsageTree *usage_tree);
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// Returns empty Ref<Cell> if something go wrong. If validate(from).is_ok() and may_apply(from, to).is_ok(), then it
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// must not fail.
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static Ref<Cell> apply(Ref<Cell> from, Ref<Cell> update);
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// check if update is valid
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static TD_WARN_UNUSED_RESULT td::Status validate(Ref<Cell> update);
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// check that hash in from is same as hash stored in update. Do not validate update
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static TD_WARN_UNUSED_RESULT td::Status may_apply(Ref<Cell> from, Ref<Cell> update);
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static Ref<Cell> apply_raw(Ref<Cell> from, Ref<Cell> update_from, Ref<Cell> update_to, td::uint32 from_level,
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td::uint32 to_level);
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static std::pair<Ref<Cell>, Ref<Cell>> generate_raw(Ref<Cell> from, Ref<Cell> to, CellUsageTree *usage_tree);
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static td::Status validate_raw(Ref<Cell> update_from, Ref<Cell> update_to, td::uint32 from_level,
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td::uint32 to_level);
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static Ref<Cell> combine(Ref<Cell> ab, Ref<Cell> bc);
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};
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} // namespace vm
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