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📄 APFloat.h(48.83 KB)
📄 APInt.h(74.48 KB)
📄 APSInt.h(11.75 KB)
📄 AllocatorList.h(7.53 KB)
📄 Any.h(5.05 KB)
📄 ArrayRef.h(17.92 KB)
📄 BitVector.h(29.74 KB)
📄 Bitfields.h(11.65 KB)
📄 BitmaskEnum.h(5.53 KB)
📄 BreadthFirstIterator.h(4.82 KB)
📄 CachedHashString.h(5.9 KB)
📄 CoalescingBitVector.h(14.91 KB)
📄 DAGDeltaAlgorithm.h(3.13 KB)
📄 DeltaAlgorithm.h(3.54 KB)
📄 DenseMap.h(43.14 KB)
📄 DenseMapInfo.h(11.4 KB)
📄 DenseSet.h(9.33 KB)
📄 DepthFirstIterator.h(10.37 KB)
📄 DirectedGraph.h(9.56 KB)
📄 EnumeratedArray.h(1.6 KB)
📄 EpochTracker.h(3.2 KB)
📄 EquivalenceClasses.h(10.52 KB)
📄 FloatingPointMode.h(5.62 KB)
📄 FoldingSet.h(30.16 KB)
📄 FunctionExtras.h(14.55 KB)
📄 GraphTraits.h(5.71 KB)
📄 Hashing.h(25.12 KB)
📄 ImmutableList.h(7.57 KB)
📄 ImmutableMap.h(10.84 KB)
📄 ImmutableSet.h(37.52 KB)
📄 IndexedMap.h(2.5 KB)
📄 IntEqClasses.h(2.87 KB)
📄 IntervalMap.h(72.88 KB)
📄 IntrusiveRefCntPtr.h(8.1 KB)
📄 MapVector.h(7.79 KB)
📄 None.h(983 B)
📄 Optional.h(10.82 KB)
📄 PackedVector.h(4.17 KB)
📄 PointerEmbeddedInt.h(4.05 KB)
📄 PointerIntPair.h(8.72 KB)
📄 PointerSumType.h(11.61 KB)
📄 PointerUnion.h(10.17 KB)
📄 PostOrderIterator.h(11.05 KB)
📄 PriorityQueue.h(2.69 KB)
📄 PriorityWorklist.h(8.11 KB)
📄 SCCIterator.h(8.02 KB)
📄 STLExtras.h(70.56 KB)
📄 ScopeExit.h(1.83 KB)
📄 ScopedHashTable.h(8.27 KB)
📄 Sequence.h(2.59 KB)
📄 SetOperations.h(2.58 KB)
📄 SetVector.h(9.39 KB)
📄 SmallBitVector.h(20.36 KB)
📄 SmallPtrSet.h(16.93 KB)
📄 SmallSet.h(8.37 KB)
📄 SmallString.h(8.55 KB)
📄 SmallVector.h(32.33 KB)
📄 SparseBitVector.h(26.2 KB)
📄 SparseMultiSet.h(17.83 KB)
📄 SparseSet.h(11.41 KB)
📄 Statistic.h(7.01 KB)
📄 StringExtras.h(13.25 KB)
📄 StringMap.h(15.7 KB)
📄 StringMapEntry.h(4.83 KB)
📄 StringRef.h(31.68 KB)
📄 StringSet.h(1.51 KB)
📄 StringSwitch.h(6.25 KB)
📄 TinyPtrVector.h(10.19 KB)
📄 Triple.h(27.4 KB)
📄 Twine.h(17.48 KB)
📄 TypeSwitch.h(5.82 KB)
📄 UniqueVector.h(3.09 KB)
📄 Waymarking.h(11.96 KB)
📄 bit.h(2.26 KB)
📄 edit_distance.h(3.57 KB)
📄 fallible_iterator.h(8.31 KB)
📄 ilist.h(13.68 KB)
📄 ilist_base.h(2.72 KB)
📄 ilist_iterator.h(7.21 KB)
📄 ilist_node.h(9.84 KB)
📄 ilist_node_base.h(1.7 KB)
📄 ilist_node_options.h(5.07 KB)
📄 iterator.h(13.46 KB)
📄 iterator_range.h(2.22 KB)
📄 simple_ilist.h(10.78 KB)

Editing: ImmutableMap.h

//===--- ImmutableMap.h - Immutable (functional) map interface --*- 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
//
//===----------------------------------------------------------------------===//
//
// This file defines the ImmutableMap class.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_ADT_IMMUTABLEMAP_H
#define LLVM_ADT_IMMUTABLEMAP_H

#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/ImmutableSet.h"
#include "llvm/Support/Allocator.h"
#include <utility>

namespace llvm {

/// ImutKeyValueInfo -Traits class used by ImmutableMap.  While both the first
/// and second elements in a pair are used to generate profile information,
/// only the first element (the key) is used by isEqual and isLess.
template <typename T, typename S>
struct ImutKeyValueInfo {
  using value_type = const std::pair<T,S>;
  using value_type_ref = const value_type&;
  using key_type = const T;
  using key_type_ref = const T&;
  using data_type = const S;
  using data_type_ref = const S&;

static inline key_type_ref KeyOfValue(value_type_ref V) {
    return V.first;
  }

static inline data_type_ref DataOfValue(value_type_ref V) {
    return V.second;
  }

static inline bool isEqual(key_type_ref L, key_type_ref R) {
    return ImutContainerInfo<T>::isEqual(L,R);
  }
  static inline bool isLess(key_type_ref L, key_type_ref R) {
    return ImutContainerInfo<T>::isLess(L,R);
  }

static inline bool isDataEqual(data_type_ref L, data_type_ref R) {
    return ImutContainerInfo<S>::isEqual(L,R);
  }

static inline void Profile(FoldingSetNodeID& ID, value_type_ref V) {
    ImutContainerInfo<T>::Profile(ID, V.first);
    ImutContainerInfo<S>::Profile(ID, V.second);
  }
};

template <typename KeyT, typename ValT,
          typename ValInfo = ImutKeyValueInfo<KeyT,ValT>>
class ImmutableMap {
public:
  using value_type = typename ValInfo::value_type;
  using value_type_ref = typename ValInfo::value_type_ref;
  using key_type = typename ValInfo::key_type;
  using key_type_ref = typename ValInfo::key_type_ref;
  using data_type = typename ValInfo::data_type;
  using data_type_ref = typename ValInfo::data_type_ref;
  using TreeTy = ImutAVLTree<ValInfo>;

protected:
  IntrusiveRefCntPtr<TreeTy> Root;

public:
  /// Constructs a map from a pointer to a tree root.  In general one
  /// should use a Factory object to create maps instead of directly
  /// invoking the constructor, but there are cases where make this
  /// constructor public is useful.
  explicit ImmutableMap(const TreeTy *R) : Root(const_cast<TreeTy *>(R)) {}

class Factory {
    typename TreeTy::Factory F;
    const bool Canonicalize;

public:
    Factory(bool canonicalize = true) : Canonicalize(canonicalize) {}

Factory(BumpPtrAllocator &Alloc, bool canonicalize = true)
        : F(Alloc), Canonicalize(canonicalize) {}

Factory(const Factory &) = delete;
    Factory &operator=(const Factory &) = delete;

ImmutableMap getEmptyMap() { return ImmutableMap(F.getEmptyTree()); }

LLVM_NODISCARD ImmutableMap add(ImmutableMap Old, key_type_ref K,
                                    data_type_ref D) {
      TreeTy *T = F.add(Old.Root.get(), std::pair<key_type, data_type>(K, D));
      return ImmutableMap(Canonicalize ? F.getCanonicalTree(T): T);
    }

LLVM_NODISCARD ImmutableMap remove(ImmutableMap Old, key_type_ref K) {
      TreeTy *T = F.remove(Old.Root.get(), K);
      return ImmutableMap(Canonicalize ? F.getCanonicalTree(T): T);
    }

typename TreeTy::Factory *getTreeFactory() const {
      return const_cast<typename TreeTy::Factory *>(&F);
    }
  };

bool contains(key_type_ref K) const {
    return Root ? Root->contains(K) : false;
  }

bool operator==(const ImmutableMap &RHS) const {
    return Root && RHS.Root ? Root->isEqual(*RHS.Root.get()) : Root == RHS.Root;
  }

bool operator!=(const ImmutableMap &RHS) const {
    return Root && RHS.Root ? Root->isNotEqual(*RHS.Root.get())
                            : Root != RHS.Root;
  }

TreeTy *getRoot() const {
    if (Root) { Root->retain(); }
    return Root.get();
  }

TreeTy *getRootWithoutRetain() const { return Root.get(); }

void manualRetain() {
    if (Root) Root->retain();
  }

void manualRelease() {
    if (Root) Root->release();
  }

bool isEmpty() const { return !Root; }

//===--------------------------------------------------===//
  // Foreach - A limited form of map iteration.
  //===--------------------------------------------------===//

private:
  template <typename Callback>
  struct CBWrapper {
    Callback C;

void operator()(value_type_ref V) { C(V.first,V.second); }
  };

template <typename Callback>
  struct CBWrapperRef {
    Callback &C;

CBWrapperRef(Callback& c) : C(c) {}

void operator()(value_type_ref V) { C(V.first,V.second); }
  };

public:
  template <typename Callback>
  void foreach(Callback& C) {
    if (Root) {
      CBWrapperRef<Callback> CB(C);
      Root->foreach(CB);
    }
  }

template <typename Callback>
  void foreach() {
    if (Root) {
      CBWrapper<Callback> CB;
      Root->foreach(CB);
    }
  }

//===--------------------------------------------------===//
  // For testing.
  //===--------------------------------------------------===//

void verify() const { if (Root) Root->verify(); }

//===--------------------------------------------------===//
  // Iterators.
  //===--------------------------------------------------===//

class iterator : public ImutAVLValueIterator<ImmutableMap> {
    friend class ImmutableMap;

iterator() = default;
    explicit iterator(TreeTy *Tree) : iterator::ImutAVLValueIterator(Tree) {}

public:
    key_type_ref getKey() const { return (*this)->first; }
    data_type_ref getData() const { return (*this)->second; }
  };

iterator begin() const { return iterator(Root.get()); }
  iterator end() const { return iterator(); }

data_type* lookup(key_type_ref K) const {
    if (Root) {
      TreeTy* T = Root->find(K);
      if (T) return &T->getValue().second;
    }

return nullptr;
  }

/// getMaxElement - Returns the <key,value> pair in the ImmutableMap for
  ///  which key is the highest in the ordering of keys in the map.  This
  ///  method returns NULL if the map is empty.
  value_type* getMaxElement() const {
    return Root ? &(Root->getMaxElement()->getValue()) : nullptr;
  }

//===--------------------------------------------------===//
  // Utility methods.
  //===--------------------------------------------------===//

unsigned getHeight() const { return Root ? Root->getHeight() : 0; }

static inline void Profile(FoldingSetNodeID& ID, const ImmutableMap& M) {
    ID.AddPointer(M.Root.get());
  }

inline void Profile(FoldingSetNodeID& ID) const {
    return Profile(ID,*this);
  }
};

// NOTE: This will possibly become the new implementation of ImmutableMap some day.
template <typename KeyT, typename ValT,
typename ValInfo = ImutKeyValueInfo<KeyT,ValT>>
class ImmutableMapRef {
public:
  using value_type = typename ValInfo::value_type;
  using value_type_ref = typename ValInfo::value_type_ref;
  using key_type = typename ValInfo::key_type;
  using key_type_ref = typename ValInfo::key_type_ref;
  using data_type = typename ValInfo::data_type;
  using data_type_ref = typename ValInfo::data_type_ref;
  using TreeTy = ImutAVLTree<ValInfo>;
  using FactoryTy = typename TreeTy::Factory;

protected:
  IntrusiveRefCntPtr<TreeTy> Root;
  FactoryTy *Factory;

public:
  /// Constructs a map from a pointer to a tree root.  In general one
  /// should use a Factory object to create maps instead of directly
  /// invoking the constructor, but there are cases where make this
  /// constructor public is useful.
  ImmutableMapRef(const TreeTy *R, FactoryTy *F)
      : Root(const_cast<TreeTy *>(R)), Factory(F) {}

ImmutableMapRef(const ImmutableMap<KeyT, ValT> &X,
                  typename ImmutableMap<KeyT, ValT>::Factory &F)
      : Root(X.getRootWithoutRetain()), Factory(F.getTreeFactory()) {}

static inline ImmutableMapRef getEmptyMap(FactoryTy *F) {
    return ImmutableMapRef(0, F);
  }

void manualRetain() {
    if (Root) Root->retain();
  }

void manualRelease() {
    if (Root) Root->release();
  }

ImmutableMapRef add(key_type_ref K, data_type_ref D) const {
    TreeTy *NewT =
        Factory->add(Root.get(), std::pair<key_type, data_type>(K, D));
    return ImmutableMapRef(NewT, Factory);
  }

ImmutableMapRef remove(key_type_ref K) const {
    TreeTy *NewT = Factory->remove(Root.get(), K);
    return ImmutableMapRef(NewT, Factory);
  }

bool contains(key_type_ref K) const {
    return Root ? Root->contains(K) : false;
  }

ImmutableMap<KeyT, ValT> asImmutableMap() const {
    return ImmutableMap<KeyT, ValT>(Factory->getCanonicalTree(Root.get()));
  }

bool operator==(const ImmutableMapRef &RHS) const {
    return Root && RHS.Root ? Root->isEqual(*RHS.Root.get()) : Root == RHS.Root;
  }

bool operator!=(const ImmutableMapRef &RHS) const {
    return Root && RHS.Root ? Root->isNotEqual(*RHS.Root.get())
                            : Root != RHS.Root;
  }

bool isEmpty() const { return !Root; }

//===--------------------------------------------------===//
  // For testing.
  //===--------------------------------------------------===//

void verify() const {
    if (Root)
      Root->verify();
  }

//===--------------------------------------------------===//
  // Iterators.
  //===--------------------------------------------------===//

class iterator : public ImutAVLValueIterator<ImmutableMapRef> {
    friend class ImmutableMapRef;

iterator() = default;
    explicit iterator(TreeTy *Tree) : iterator::ImutAVLValueIterator(Tree) {}

public:
    key_type_ref getKey() const { return (*this)->first; }
    data_type_ref getData() const { return (*this)->second; }
  };

iterator begin() const { return iterator(Root.get()); }
  iterator end() const { return iterator(); }

data_type *lookup(key_type_ref K) const {
    if (Root) {
      TreeTy* T = Root->find(K);
      if (T) return &T->getValue().second;
    }

return nullptr;
  }

//===--------------------------------------------------===//
  // Utility methods.
  //===--------------------------------------------------===//

unsigned getHeight() const { return Root ? Root->getHeight() : 0; }

static inline void Profile(FoldingSetNodeID &ID, const ImmutableMapRef &M) {
    ID.AddPointer(M.Root.get());
  }

inline void Profile(FoldingSetNodeID &ID) const { return Profile(ID, *this); }
};

} // end namespace llvm

#endif // LLVM_ADT_IMMUTABLEMAP_H

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