// update I2 to the current memory size. update global offset.
	Type id_type =$1.type;
	if( id_type == INT8)
	{

		offset=offset+1;
	}

	else if( id_type == INT16 )
	{
		if((globalCurrentScopeOffset+2)%2 != 0 )
		{
			offset = 2 - globalCurrentScopeOffset%2 + 2;
		}
		else offset=offset+2;

	}
	else if( id_type == INT32 )
	{
		if((globalCurrentScopeOffset+4)%4 != 0 )
		{
			offset = 4 - globalCurrentScopeOffset%4 + 4;
		}
		else offset=offset+4;

	}