//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_ADT_IMMAP_H
-#define LLVM_ADT_IMMAP_H
+#ifndef LLVM_ADT_IMMUTABLEMAP_H
+#define LLVM_ADT_IMMUTABLEMAP_H
#include "llvm/ADT/ImmutableSet.h"
}
};
-
template <typename KeyT, typename ValT,
typename ValInfo = ImutKeyValueInfo<KeyT,ValT> >
class ImmutableMap {
explicit ImmutableMap(const TreeTy* R) : Root(const_cast<TreeTy*>(R)) {
if (Root) { Root->retain(); }
}
+
ImmutableMap(const ImmutableMap &X) : Root(X.Root) {
if (Root) { Root->retain(); }
}
+
ImmutableMap &operator=(const ImmutableMap &X) {
if (Root != X.Root) {
if (X.Root) { X.Root->retain(); }
}
return *this;
}
+
~ImmutableMap() {
if (Root) { Root->release(); }
}
const bool Canonicalize;
public:
- Factory(bool canonicalize = true)
- : Canonicalize(canonicalize) {}
-
- Factory(BumpPtrAllocator& Alloc, bool canonicalize = true)
- : F(Alloc), Canonicalize(canonicalize) {}
+ Factory(bool canonicalize = true) : Canonicalize(canonicalize) {}
+
+ Factory(BumpPtrAllocator &Alloc, bool canonicalize = true)
+ : F(Alloc), Canonicalize(canonicalize) {}
ImmutableMap getEmptyMap() { return ImmutableMap(F.getEmptyTree()); }
return ImmutableMap(Canonicalize ? F.getCanonicalTree(T): T);
}
+ typename TreeTy::Factory *getTreeFactory() const {
+ return const_cast<typename TreeTy::Factory *>(&F);
+ }
+
private:
- Factory(const Factory& RHS); // DO NOT IMPLEMENT
- void operator=(const Factory& RHS); // DO NOT IMPLEMENT
+ Factory(const Factory& RHS) = delete;
+ void operator=(const Factory& RHS) = delete;
};
bool contains(key_type_ref K) const {
return Root;
}
- TreeTy *getRootWithoutRetain() const {
- return Root;
- }
-
+ TreeTy *getRootWithoutRetain() const { return Root; }
+
void manualRetain() {
if (Root) Root->retain();
}
-
+
void manualRelease() {
if (Root) Root->release();
}
// Iterators.
//===--------------------------------------------------===//
- class iterator {
- typename TreeTy::iterator itr;
-
- iterator() {}
- iterator(TreeTy* t) : itr(t) {}
+ class iterator : public ImutAVLValueIterator<ImmutableMap> {
+ iterator() = default;
+ explicit iterator(TreeTy *Tree) : iterator::ImutAVLValueIterator(Tree) {}
friend class ImmutableMap;
public:
- value_type_ref operator*() const { return itr->getValue(); }
- value_type* operator->() const { return &itr->getValue(); }
-
- key_type_ref getKey() const { return itr->getValue().first; }
- data_type_ref getData() const { return itr->getValue().second; }
-
-
- iterator& operator++() { ++itr; return *this; }
- iterator operator++(int) { iterator tmp(*this); ++itr; return tmp; }
- iterator& operator--() { --itr; return *this; }
- iterator operator--(int) { iterator tmp(*this); --itr; return tmp; }
- bool operator==(const iterator& RHS) const { return RHS.itr == itr; }
- bool operator!=(const iterator& RHS) const { return RHS.itr != itr; }
+ key_type_ref getKey() const { return (*this)->first; }
+ data_type_ref getData() const { return (*this)->second; }
};
iterator begin() const { return iterator(Root); }
if (T) return &T->getValue().second;
}
- return 0;
+ 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()) : 0;
+ return Root ? &(Root->getMaxElement()->getValue()) : nullptr;
}
//===--------------------------------------------------===//
typedef typename ValInfo::data_type_ref data_type_ref;
typedef ImutAVLTree<ValInfo> TreeTy;
typedef typename TreeTy::Factory FactoryTy;
-
+
protected:
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.
- explicit ImmutableMapRef(const TreeTy* R, FactoryTy *F)
- : Root(const_cast<TreeTy*>(R)),
- Factory(F) {
- if (Root) { Root->retain(); }
+ explicit ImmutableMapRef(const TreeTy *R, FactoryTy *F)
+ : Root(const_cast<TreeTy *>(R)), Factory(F) {
+ if (Root) {
+ Root->retain();
+ }
}
-
- ImmutableMapRef(const ImmutableMapRef &X)
- : Root(X.Root),
- Factory(X.Factory) {
+
+ explicit ImmutableMapRef(const ImmutableMap<KeyT, ValT> &X,
+ typename ImmutableMap<KeyT, ValT>::Factory &F)
+ : Root(X.getRootWithoutRetain()),
+ Factory(F.getTreeFactory()) {
if (Root) { Root->retain(); }
}
+ ImmutableMapRef(const ImmutableMapRef &X) : Root(X.Root), Factory(X.Factory) {
+ if (Root) {
+ Root->retain();
+ }
+ }
+
ImmutableMapRef &operator=(const ImmutableMapRef &X) {
if (Root != X.Root) {
if (X.Root)
X.Root->retain();
-
+
if (Root)
Root->release();
-
+
Root = X.Root;
Factory = X.Factory;
}
if (Root)
Root->release();
}
-
+
static inline ImmutableMapRef getEmptyMap(FactoryTy *F) {
return ImmutableMapRef(0, F);
}
- ImmutableMapRef add(key_type_ref K, data_type_ref D) {
+ 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, std::pair<key_type, data_type>(K, D));
return ImmutableMapRef(NewT, Factory);
}
- ImmutableMapRef remove(key_type_ref K) {
+ ImmutableMapRef remove(key_type_ref K) const {
TreeTy *NewT = Factory->remove(Root, 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));
}
-
+
bool operator==(const ImmutableMapRef &RHS) const {
return Root && RHS.Root ? Root->isEqual(*RHS.Root) : Root == RHS.Root;
}
-
+
bool operator!=(const ImmutableMapRef &RHS) const {
return Root && RHS.Root ? Root->isNotEqual(*RHS.Root) : Root != RHS.Root;
}
-
+
bool isEmpty() const { return !Root; }
-
+
//===--------------------------------------------------===//
// For testing.
//===--------------------------------------------------===//
-
- void verify() const { if (Root) Root->verify(); }
-
+
+ void verify() const {
+ if (Root)
+ Root->verify();
+ }
+
//===--------------------------------------------------===//
// Iterators.
//===--------------------------------------------------===//
-
- class iterator {
- typename TreeTy::iterator itr;
-
- iterator() {}
- iterator(TreeTy* t) : itr(t) {}
+
+ class iterator : public ImutAVLValueIterator<ImmutableMapRef> {
+ iterator() = default;
+ explicit iterator(TreeTy *Tree) : iterator::ImutAVLValueIterator(Tree) {}
friend class ImmutableMapRef;
-
+
public:
- value_type_ref operator*() const { return itr->getValue(); }
- value_type* operator->() const { return &itr->getValue(); }
-
- key_type_ref getKey() const { return itr->getValue().first; }
- data_type_ref getData() const { return itr->getValue().second; }
-
-
- iterator& operator++() { ++itr; return *this; }
- iterator operator++(int) { iterator tmp(*this); ++itr; return tmp; }
- iterator& operator--() { --itr; return *this; }
- iterator operator--(int) { iterator tmp(*this); --itr; return tmp; }
- bool operator==(const iterator& RHS) const { return RHS.itr == itr; }
- bool operator!=(const iterator& RHS) const { return RHS.itr != itr; }
+ key_type_ref getKey() const { return (*this)->first; }
+ data_type_ref getData() const { return (*this)->second; }
};
-
+
iterator begin() const { return iterator(Root); }
iterator end() const { return iterator(); }
-
- data_type* lookup(key_type_ref K) const {
+
+ data_type *lookup(key_type_ref K) const {
if (Root) {
TreeTy* T = Root->find(K);
if (T) return &T->getValue().second;
}
-
- return 0;
+
+ 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()) : 0;
}
-
+
//===--------------------------------------------------===//
// Utility methods.
//===--------------------------------------------------===//
-
+
unsigned getHeight() const { return Root ? Root->getHeight() : 0; }
-
- static inline void Profile(FoldingSetNodeID& ID, const ImmutableMapRef &M) {
+
+ static inline void Profile(FoldingSetNodeID &ID, const ImmutableMapRef &M) {
ID.AddPointer(M.Root);
}
-
- inline void Profile(FoldingSetNodeID& ID) const {
- return Profile(ID, *this);
- }
+
+ inline void Profile(FoldingSetNodeID &ID) const { return Profile(ID, *this); }
};
-
+
} // end namespace llvm
-#endif
+#endif // LLVM_ADT_IMMUTABLEMAP_H
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