/**
* Initializes a new instance of that class.
*
* @param string $path The path of the file.
* @param string $mode The mode
*
* @throws IOException File could not be opened.
*/
public function __construct($path, $mode = 'r+')
{
$path = ClrString::asString($path);
$res = \fopen((string) $path, ClrString::valueToString($mode, false));
if (false === $res) {
$this->throwIOException('Could not open file!');
}
$this->_file = $path;
parent::__construct($res, true);
}
/**
* {@inheritDoc}
*/
public final function joinToStringCallback($separatorFactory = null, $defValue = '')
{
if (null === $separatorFactory) {
$separatorFactory = function () {
return '';
};
}
$separatorFactory = static::asCallable($separatorFactory);
$result = $this->iterateWithItemContext(function ($x, IEachItemContext $ctx) use(&$hasItems, $separatorFactory) {
$hasItems = true;
$str = $ctx->result();
if (!$ctx->isFirst()) {
$str .= $separatorFactory($x, $ctx);
} else {
$str = '';
}
$str .= ClrString::valueToString($x);
$ctx->result($str);
}, $defValue);
return ClrString::asString($result, false);
}
