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93 lines
2.7 KiB
C++
93 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 "vm/cells/CellTraits.h"
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#include "common/bitstring.h"
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#include "td/utils/as.h"
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#include <array>
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namespace td {
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class StringBuilder;
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}
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namespace vm {
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struct CellHash {
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public:
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td::Slice as_slice() const {
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return td::Slice(hash_.data(), hash_.size());
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}
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td::MutableSlice as_slice() {
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return td::MutableSlice(hash_.data(), hash_.size());
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}
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bool operator==(const CellHash& other) const {
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return hash_ == other.hash_;
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}
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bool operator<(const CellHash& other) const {
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return hash_ < other.hash_;
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}
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bool operator!=(const CellHash& other) const {
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return hash_ != other.hash_;
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}
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std::string to_hex() const {
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return td::ConstBitPtr{hash_.data()}.to_hex(hash_.size() * 8);
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}
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friend td::StringBuilder& operator<<(td::StringBuilder& sb, const CellHash& hash);
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td::ConstBitPtr bits() const {
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return td::ConstBitPtr{hash_.data()};
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}
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td::BitPtr bits() {
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return td::BitPtr{hash_.data()};
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}
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td::BitSlice as_bitslice() const {
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return td::BitSlice{hash_.data(), (unsigned int)hash_.size() * 8};
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}
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const std::array<td::uint8, CellTraits::hash_bytes>& as_array() const {
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return hash_;
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}
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static CellHash from_slice(td::Slice slice) {
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CellHash res;
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CHECK(slice.size() == res.hash_.size());
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td::MutableSlice(res.hash_.data(), res.hash_.size()).copy_from(slice);
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return res;
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}
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private:
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std::array<td::uint8, CellTraits::hash_bytes> hash_;
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};
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} // namespace vm
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namespace std {
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template <>
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struct hash<vm::CellHash> {
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typedef vm::CellHash argument_type;
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typedef std::size_t result_type;
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result_type operator()(argument_type const& s) const noexcept {
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return td::as<size_t>(s.as_slice().ubegin());
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}
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};
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} // namespace std
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namespace vm {
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template <class H>
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H AbslHashValue(H h, const CellHash& cell_hash) {
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return H::combine(std::move(h), std::hash<vm::CellHash>()(cell_hash));
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}
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} // namespace vm
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