Интерпретатор / _sources / MyLanguage / LookupTable

#ifndef LOOKUPTABLE_HPP_
#define LOOKUPTABLE_HPP_

#include <string>
#include <vector>
#include <map>
#include <utility>

namespace Parser_impl {
	
template <class T> class LookupTable {

private:
	
	typedef std::map<std::string, int> Map;
	typedef std::vector<T> Vector; 
		
	Vector items;	
	Map index;
	
public:

	void clearIndex()
	{
		index.clear();
	} 
	
	bool contains(const std::string& str)
	{
		Map::iterator pos = index.find(str);
		if (pos != index.end() )
			return true;
		return false;
	}
	
	int put(const std::string& str, const T& item)
	{		
		items.push_back(item);
		index.insert(std::make_pair(str, items.size() - 1 ));
		return items.size() - 1;			
	}
	
	int getPos(const std::string& str)
	{
		return index[str];
	}
	
	T& get(const std::string& str) 
	{
		return items[index[str]];
	}
	
	T& get(int i) 
	{
		return items[i];
	}
	
	int getSize() const 
	{
		return items.size();
	}
	
};

}

#endif /*LOOKUPTABLE_HPP_*/