#include "angelscript.h"
#include <string>
#include <iostream>

void Construct(std::string* ptr) { new (ptr) std::string(); }
void CopyConstruct(const std::string& rhs, std::string* ptr) { new (ptr) std::string(rhs); }
void Destroy(std::string* ptr) { ptr->~basic_string(); } 
std::string& Assign(const std::string& rhs, std::string* ptr) { return (*ptr) = rhs; }
	
int main(int argc, char* argv[])
{
	asIScriptEngine* engine = asCreateScriptEngine(ANGELSCRIPT_VERSION);
	int error_code = 0;

	std::cout << "Registering string type. ";
	error_code = engine->RegisterObjectType("string",sizeof(std::string),asOBJ_CLASS_CDA);
	if (error_code < 0) std::cout << "Error: " << error_code;

	std::cout << "\nRegistering constructor. ";
	error_code = engine->RegisterObjectBehaviour("string",
		asBEHAVE_CONSTRUCT,
		"void constructor()",
		asFUNCTION(Construct),
		asCALL_CDECL_OBJLAST);	
	if (error_code < 0) std::cout << "Error: " << error_code;

	std::cout << "\nRegistering destructor. ";	
	error_code = engine->RegisterObjectBehaviour("string",
		asBEHAVE_DESTRUCT,
		"void destructor()",
		asFUNCTION(Destroy),
		asCALL_CDECL_OBJLAST);	
	if (error_code < 0) std::cout << "Error: " << error_code;

	//Returns error code -10: asINVALID_DECLARATION
	std::cout << "\nRegistering operator=. ";
	error_code = engine->RegisterObjectBehaviour("string",
		asBEHAVE_ASSIGNMENT,
		"string& op_assign(const string&)",
		asFUNCTION(Assign),
		asCALL_CDECL_OBJLAST);	
	if (error_code < 0) std::cout << "Error: " << error_code;

	std::cout << "\nRegistering copy constructor. ";
	error_code = engine->RegisterObjectBehaviour("string",
		asBEHAVE_CONSTRUCT,
		"void constructor(const string&)",
		asFUNCTION(CopyConstruct),
		asCALL_CDECL_OBJLAST);					
	if (error_code < 0) std::cout << "Error: " << error_code;

	//Returns error code -10: asINVALID_DECLARATION
	std::cout << "\nRegistering operator+=. ";	
	error_code = engine->RegisterObjectBehaviour("string",
		asBEHAVE_ADD_ASSIGN,
		"string& op_addassign(const string&)",
		asMETHODPR(std::string,operator+=,(const std::string&),std::string&),
		asCALL_THISCALL);
	if (error_code < 0) std::cout << "Error: " << error_code;
}