diff options
author | vitalyisaev <vitalyisaev@yandex-team.com> | 2023-06-29 10:00:50 +0300 |
---|---|---|
committer | vitalyisaev <vitalyisaev@yandex-team.com> | 2023-06-29 10:00:50 +0300 |
commit | 6ffe9e53658409f212834330e13564e4952558f6 (patch) | |
tree | 85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm14/include/llvm/ADT/DenseSet.h | |
parent | 726057070f9c5a91fc10fde0d5024913d10f1ab9 (diff) | |
download | ydb-6ffe9e53658409f212834330e13564e4952558f6.tar.gz |
YQ Connector: support managed ClickHouse
Со стороны dqrun можно обратиться к инстансу коннектора, который работает на streaming стенде, и извлечь данные из облачного CH.
Diffstat (limited to 'contrib/libs/llvm14/include/llvm/ADT/DenseSet.h')
-rw-r--r-- | contrib/libs/llvm14/include/llvm/ADT/DenseSet.h | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/contrib/libs/llvm14/include/llvm/ADT/DenseSet.h b/contrib/libs/llvm14/include/llvm/ADT/DenseSet.h new file mode 100644 index 0000000000..823535ec14 --- /dev/null +++ b/contrib/libs/llvm14/include/llvm/ADT/DenseSet.h @@ -0,0 +1,313 @@ +#pragma once + +#ifdef __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wunused-parameter" +#endif + +//===- llvm/ADT/DenseSet.h - Dense probed hash table ------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +/// +/// \file +/// This file defines the DenseSet and SmallDenseSet classes. +/// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_ADT_DENSESET_H +#define LLVM_ADT_DENSESET_H + +#include "llvm/ADT/DenseMap.h" +#include "llvm/ADT/DenseMapInfo.h" +#include "llvm/Support/MathExtras.h" +#include "llvm/Support/type_traits.h" +#include <cstddef> +#include <initializer_list> +#include <iterator> +#include <utility> + +namespace llvm { + +namespace detail { + +struct DenseSetEmpty {}; + +// Use the empty base class trick so we can create a DenseMap where the buckets +// contain only a single item. +template <typename KeyT> class DenseSetPair : public DenseSetEmpty { + KeyT key; + +public: + KeyT &getFirst() { return key; } + const KeyT &getFirst() const { return key; } + DenseSetEmpty &getSecond() { return *this; } + const DenseSetEmpty &getSecond() const { return *this; } +}; + +/// Base class for DenseSet and DenseSmallSet. +/// +/// MapTy should be either +/// +/// DenseMap<ValueT, detail::DenseSetEmpty, ValueInfoT, +/// detail::DenseSetPair<ValueT>> +/// +/// or the equivalent SmallDenseMap type. ValueInfoT must implement the +/// DenseMapInfo "concept". +template <typename ValueT, typename MapTy, typename ValueInfoT> +class DenseSetImpl { + static_assert(sizeof(typename MapTy::value_type) == sizeof(ValueT), + "DenseMap buckets unexpectedly large!"); + MapTy TheMap; + + template <typename T> + using const_arg_type_t = typename const_pointer_or_const_ref<T>::type; + +public: + using key_type = ValueT; + using value_type = ValueT; + using size_type = unsigned; + + explicit DenseSetImpl(unsigned InitialReserve = 0) : TheMap(InitialReserve) {} + + template <typename InputIt> + DenseSetImpl(const InputIt &I, const InputIt &E) + : DenseSetImpl(PowerOf2Ceil(std::distance(I, E))) { + insert(I, E); + } + + DenseSetImpl(std::initializer_list<ValueT> Elems) + : DenseSetImpl(PowerOf2Ceil(Elems.size())) { + insert(Elems.begin(), Elems.end()); + } + + bool empty() const { return TheMap.empty(); } + size_type size() const { return TheMap.size(); } + size_t getMemorySize() const { return TheMap.getMemorySize(); } + + /// Grow the DenseSet so that it has at least Size buckets. Will not shrink + /// the Size of the set. + void resize(size_t Size) { TheMap.resize(Size); } + + /// Grow the DenseSet so that it can contain at least \p NumEntries items + /// before resizing again. + void reserve(size_t Size) { TheMap.reserve(Size); } + + void clear() { + TheMap.clear(); + } + + /// Return 1 if the specified key is in the set, 0 otherwise. + size_type count(const_arg_type_t<ValueT> V) const { + return TheMap.count(V); + } + + bool erase(const ValueT &V) { + return TheMap.erase(V); + } + + void swap(DenseSetImpl &RHS) { TheMap.swap(RHS.TheMap); } + + // Iterators. + + class ConstIterator; + + class Iterator { + typename MapTy::iterator I; + friend class DenseSetImpl; + friend class ConstIterator; + + public: + using difference_type = typename MapTy::iterator::difference_type; + using value_type = ValueT; + using pointer = value_type *; + using reference = value_type &; + using iterator_category = std::forward_iterator_tag; + + Iterator() = default; + Iterator(const typename MapTy::iterator &i) : I(i) {} + + ValueT &operator*() { return I->getFirst(); } + const ValueT &operator*() const { return I->getFirst(); } + ValueT *operator->() { return &I->getFirst(); } + const ValueT *operator->() const { return &I->getFirst(); } + + Iterator& operator++() { ++I; return *this; } + Iterator operator++(int) { auto T = *this; ++I; return T; } + friend bool operator==(const Iterator &X, const Iterator &Y) { + return X.I == Y.I; + } + friend bool operator!=(const Iterator &X, const Iterator &Y) { + return X.I != Y.I; + } + }; + + class ConstIterator { + typename MapTy::const_iterator I; + friend class DenseSetImpl; + friend class Iterator; + + public: + using difference_type = typename MapTy::const_iterator::difference_type; + using value_type = ValueT; + using pointer = const value_type *; + using reference = const value_type &; + using iterator_category = std::forward_iterator_tag; + + ConstIterator() = default; + ConstIterator(const Iterator &B) : I(B.I) {} + ConstIterator(const typename MapTy::const_iterator &i) : I(i) {} + + const ValueT &operator*() const { return I->getFirst(); } + const ValueT *operator->() const { return &I->getFirst(); } + + ConstIterator& operator++() { ++I; return *this; } + ConstIterator operator++(int) { auto T = *this; ++I; return T; } + friend bool operator==(const ConstIterator &X, const ConstIterator &Y) { + return X.I == Y.I; + } + friend bool operator!=(const ConstIterator &X, const ConstIterator &Y) { + return X.I != Y.I; + } + }; + + using iterator = Iterator; + using const_iterator = ConstIterator; + + iterator begin() { return Iterator(TheMap.begin()); } + iterator end() { return Iterator(TheMap.end()); } + + const_iterator begin() const { return ConstIterator(TheMap.begin()); } + const_iterator end() const { return ConstIterator(TheMap.end()); } + + iterator find(const_arg_type_t<ValueT> V) { return Iterator(TheMap.find(V)); } + const_iterator find(const_arg_type_t<ValueT> V) const { + return ConstIterator(TheMap.find(V)); + } + + /// Check if the set contains the given element. + bool contains(const_arg_type_t<ValueT> V) const { + return TheMap.find(V) != TheMap.end(); + } + + /// Alternative version of find() which allows a different, and possibly less + /// expensive, key type. + /// The DenseMapInfo is responsible for supplying methods + /// getHashValue(LookupKeyT) and isEqual(LookupKeyT, KeyT) for each key type + /// used. + template <class LookupKeyT> + iterator find_as(const LookupKeyT &Val) { + return Iterator(TheMap.find_as(Val)); + } + template <class LookupKeyT> + const_iterator find_as(const LookupKeyT &Val) const { + return ConstIterator(TheMap.find_as(Val)); + } + + void erase(Iterator I) { return TheMap.erase(I.I); } + void erase(ConstIterator CI) { return TheMap.erase(CI.I); } + + std::pair<iterator, bool> insert(const ValueT &V) { + detail::DenseSetEmpty Empty; + return TheMap.try_emplace(V, Empty); + } + + std::pair<iterator, bool> insert(ValueT &&V) { + detail::DenseSetEmpty Empty; + return TheMap.try_emplace(std::move(V), Empty); + } + + /// Alternative version of insert that uses a different (and possibly less + /// expensive) key type. + template <typename LookupKeyT> + std::pair<iterator, bool> insert_as(const ValueT &V, + const LookupKeyT &LookupKey) { + return TheMap.insert_as({V, detail::DenseSetEmpty()}, LookupKey); + } + template <typename LookupKeyT> + std::pair<iterator, bool> insert_as(ValueT &&V, const LookupKeyT &LookupKey) { + return TheMap.insert_as({std::move(V), detail::DenseSetEmpty()}, LookupKey); + } + + // Range insertion of values. + template<typename InputIt> + void insert(InputIt I, InputIt E) { + for (; I != E; ++I) + insert(*I); + } +}; + +/// Equality comparison for DenseSet. +/// +/// Iterates over elements of LHS confirming that each element is also a member +/// of RHS, and that RHS contains no additional values. +/// Equivalent to N calls to RHS.count. Amortized complexity is linear, worst +/// case is O(N^2) (if every hash collides). +template <typename ValueT, typename MapTy, typename ValueInfoT> +bool operator==(const DenseSetImpl<ValueT, MapTy, ValueInfoT> &LHS, + const DenseSetImpl<ValueT, MapTy, ValueInfoT> &RHS) { + if (LHS.size() != RHS.size()) + return false; + + for (auto &E : LHS) + if (!RHS.count(E)) + return false; + + return true; +} + +/// Inequality comparison for DenseSet. +/// +/// Equivalent to !(LHS == RHS). See operator== for performance notes. +template <typename ValueT, typename MapTy, typename ValueInfoT> +bool operator!=(const DenseSetImpl<ValueT, MapTy, ValueInfoT> &LHS, + const DenseSetImpl<ValueT, MapTy, ValueInfoT> &RHS) { + return !(LHS == RHS); +} + +} // end namespace detail + +/// Implements a dense probed hash-table based set. +template <typename ValueT, typename ValueInfoT = DenseMapInfo<ValueT>> +class DenseSet : public detail::DenseSetImpl< + ValueT, DenseMap<ValueT, detail::DenseSetEmpty, ValueInfoT, + detail::DenseSetPair<ValueT>>, + ValueInfoT> { + using BaseT = + detail::DenseSetImpl<ValueT, + DenseMap<ValueT, detail::DenseSetEmpty, ValueInfoT, + detail::DenseSetPair<ValueT>>, + ValueInfoT>; + +public: + using BaseT::BaseT; +}; + +/// Implements a dense probed hash-table based set with some number of buckets +/// stored inline. +template <typename ValueT, unsigned InlineBuckets = 4, + typename ValueInfoT = DenseMapInfo<ValueT>> +class SmallDenseSet + : public detail::DenseSetImpl< + ValueT, SmallDenseMap<ValueT, detail::DenseSetEmpty, InlineBuckets, + ValueInfoT, detail::DenseSetPair<ValueT>>, + ValueInfoT> { + using BaseT = detail::DenseSetImpl< + ValueT, SmallDenseMap<ValueT, detail::DenseSetEmpty, InlineBuckets, + ValueInfoT, detail::DenseSetPair<ValueT>>, + ValueInfoT>; + +public: + using BaseT::BaseT; +}; + +} // end namespace llvm + +#endif // LLVM_ADT_DENSESET_H + +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif |