#ifndef LLVM_ADT_MAPVECTOR_H
#define LLVM_ADT_MAPVECTOR_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include <vector>
namespace llvm {
template<typename KeyT, typename ValueT>
class MapVector {
typedef llvm::DenseMap<KeyT, unsigned> MapType;
typedef std::vector<std::pair<KeyT, ValueT> > VectorType;
typedef typename VectorType::size_type SizeType;
MapType Map;
VectorType Vector;
public:
typedef typename VectorType::iterator iterator;
typedef typename VectorType::const_iterator const_iterator;
SizeType size() const {
return Vector.size();
}
iterator begin() {
return Vector.begin();
}
const_iterator begin() const {
return Vector.begin();
}
iterator end() {
return Vector.end();
}
const_iterator end() const {
return Vector.end();
}
bool empty() const {
return Vector.empty();
}
ValueT &operator[](const KeyT &Key) {
std::pair<KeyT, unsigned> Pair = std::make_pair(Key, 0);
std::pair<typename MapType::iterator, bool> Result = Map.insert(Pair);
unsigned &I = Result.first->second;
if (Result.second) {
Vector.push_back(std::make_pair(Key, ValueT()));
I = Vector.size() - 1;
}
return Vector[I].second;
}
};
}
#endif