// ============================================================================
// Project: Bracket-matching example of stack usage             File: token.hpp
// Author:  Michael and Alice Fischer                   Copyright: January 2009
// Modified February 2016
// Modified September 2016 by Michael Fischer
// ============================================================================
#ifndef TOKEN_HPP
#define TOKEN_HPP

#include "tools.hpp"

enum BracketType {
	BKT_SQ, BKT_RND, BKT_CURLY, BKT_ANGLE, BKT_NONE
};
enum TokenSense {
	SENSE_LEFT, SENSE_RIGHT
};

class Token {
public:
	static int nextID;
private:
	int id = nextID++;
	BracketType type = BKT_NONE;
	TokenSense sense = SENSE_LEFT;
	char ch = '\0';
	void classify(char ch);
	int* dynarray = nullptr;
	void protectFromDeletion() {
		dynarray = nullptr;
	}

public:
	Token(char ch);	// additional constructor
	Token() {
		cerr << "Default constructor for token " << id << " called\n";
		dynarray = nullptr;
	}	// default constructor
	Token(const Token& rhs) = delete;	// default copy constructor
	Token(Token&& rhs) {
		type = rhs.type;
		sense = rhs.sense;
		ch = rhs.ch;
		dynarray = rhs.dynarray;
		cerr << "Move constructor for token " << id << " called\n";
		rhs.protectFromDeletion();
	}
	Token& operator=(const Token&) = delete;	// default copy assignment
	Token& operator=(Token&& rhs) {		// redefined move assignment
		type = rhs.type;
		sense = rhs.sense;
		ch = rhs.ch;
		if (dynarray != nullptr) {
			delete[] dynarray;
		}
		dynarray = rhs.dynarray;
		cerr << "Move assignment for token " << id << " called\n";
		rhs.protectFromDeletion();
		return *this;
	}

	// Token() : type(), sense(), ch() {}
	~Token() {
		cerr << "Destructor for token " << id << " called\n";
		delete[] dynarray;
	}
	ostream& print(ostream& out) const {
		return out << "token " << id << " " << ch;
	}
	BracketType getType() const {
		return type;
	}
	TokenSense getSense() const {
		return sense;
	}
};

inline ostream& operator<<(ostream& out, const Token& t) {
	return t.print(out);
}
#endif // TOKEN_HPP