/**
* @param callable $callback
*
* @return Optional
*/
public function ensure(callable $callback) : Optional
{
if ($callback($this->value)) {
return $this;
}
return None::Instance();
}
/**
* @param $value
* @param null $reject
* @return Option
*/
public static function wrap($value, $reject = null)
{
if ($value === $reject) {
return None::instance();
}
return new Some($value);
}
function filter($callable)
{
if (is_callable($callable)) {
return $callable($this->get()) ? $this : None::instance();
} elseif (is_array($callable)) {
return in_array($this->get(), $callable) ? $this : None::instance();
}
throw new \InvalidArgumentException("Expected only callable or array type of argument.");
}
/**
* Creates a lazy-option with the given callback.
*
* This is also a helper constructor for lazy-consuming existing APIs where
* the return value is not yet an option. By default, we treat ``null`` as
* None case, and everything else as Some.
*
* @param callable $callback The callback to evaluate.
* @param array $arguments
* @param mixed $noneValue The value which should be considered "None"; null
* by default.
*
* @return Option
*/
public static function fromReturn($callback, array $arguments = array(), $noneValue = null)
{
return new LazyOption(function () use($callback, $arguments, $noneValue) {
$return = call_user_func_array($callback, $arguments);
if ($return === $noneValue) {
return None::create();
}
return new Some($return);
});
}
protected final function dataTypeCheck($value, $variableName, $soft)
{
if (!is_numeric($value) || static::$strictNumberCheck && is_string($value)) {
return static::handleTypeError($this->getTypeString(), $value, $variableName, $soft);
}
if (!$this->checkRange($value, $variableName, $soft)) {
return None::getInstance();
}
return $this->subTypeCheck($value, $variableName, $soft);
}
protected final function dataTypeCheck($value, $variableName, $soft)
{
if (!is_string($value)) {
return static::handleTypeError($this->getTypeString(), $value, $variableName, $soft);
}
if ($this->validatorRegex) {
if (!preg_match($this->validatorRegex, $value)) {
if ($soft) {
return None::getInstance();
}
throw new TypeError("Value named: {$variableName} with data: \"{$value}\" does not conform to regex: {$this->validatorRegex}");
}
}
return $this->additionalCheck($value, $variableName, $soft);
}
/**
* append() をテストします.
* 以下を確認します.
*
* - 任意のスカラー値および Node が追加できること
* - null および None を指定した場合, 変化がない (追加されない) こと
* - コンテナを追加した場合, 自身ではなくその子ノードが追加されること
*
* @covers Peach\Markup\Container::append
*/
public function testAppend()
{
$nList = new NodeList();
$nList->append("foo");
$nList->append("bar");
$nList->append("baz");
$test = $this->test;
$obj = $this->object;
$obj->append(null);
$obj->append("TEXT");
// (count: 1)
$obj->append(new EmptyElement("test"));
// (count: 2)
$obj->append(None::getInstance());
// added nothing (count: 2)
$obj->append($nList);
// added 3 nodes (count: 5)
$obj->append(array("A", "B", array("C", "D")));
// added 4 nodes (count: 9)
$test->assertSame(9, count($obj->getChildNodes()));
}
protected function dataTypeCheck($value, $variableName, $soft)
{
$isObject = is_object($value);
$isArray = is_array($value);
if (!($isObject || $isArray)) {
if ($soft) {
return None::getInstance();
}
throw new TypeError("Type must be object, type of value named: {$variableName} given: " . gettype($value) . " with data: " . static::safePrint($value));
}
//Set missing fields to null, let the child type check if it accepts it.
foreach ($this->childrenType as $key => $element) {
if ($isArray && !array_key_exists($key, $value)) {
$value[$key] = null;
} else {
if ($isObject && !property_exists($value, $key)) {
$value->{$key} = null;
}
}
//throw new TypeError("Required property: $key is missing from object: $variableName");
}
if ($this->childrenType !== null) {
foreach ($value as $key => $element) {
if (!isset($this->childrenType[$key])) {
throw new TypeError("Property {$key} in array: {$variableName} does not have a validator Type");
}
//$actualValue = $this->childrenType[$key]->check($element, "{$variableName}:{{$key}}");
$actualValue = $this->childrenType[$key]->check($element, "{$variableName}:{$key}");
if ($isArray) {
$value[$key] = $actualValue;
} else {
$value->{$key} = $actualValue;
}
}
}
return $value;
}
public function reject($value)
{
if ($this->value === $value) {
return None::create();
}
return $this;
}
/**
* @param $method
* @param $args
* @return $this
*/
public function call($method, ...$args)
{
return is_object($this->get()) && method_exists($this->get(), $method) ? Option::Some($this->get()->{$method}(...$args)) : None::instance();
}
/**
* Create a new file cache store instance.
*
* @param array $options
* @return void
*/
public function __construct(array $options = array())
{
parent::__construct($options);
}
/**
* @inheritdoc
*/
public function find(callable $hof)
{
return $hof($this->value, 0, $this) ? new Some($this->value) : None::getInstance();
}
/**
* @return None
*/
function None()
{
return None::getInstance();
}
public function testTryingAgain()
{
$backoff = new None();
$this->assertFalse($backoff->shouldWeTryAgain(), 'Never try again with this strategy');
}
/**
* @inheritdoc
* @return None
*/
public function left()
{
return None::getInstance();
}
/**
* @return None
*/
function none() : None
{
return None::Instance();
}
/**
* Context の handleNone() が呼び出されることを確認します.
*
* @covers Peach\Markup\None::accept
*/
public function testAccept()
{
$context = new TestContext();
$this->object->accept($context);
$this->assertSame("handleNone", $context->getResult());
}
/**
* @inheritdoc
* @return Some|None
*/
public function filterNot(callable $hof)
{
return !call_user_func($hof, $this->x, 0, $this) ? $this : None::getInstance();
}
/**
* @param $filePath
* @return Option
*/
public static function ofFile($filePath)
{
return file_exists($filePath) ? new Some($filePath) : None::getInstance();
}
public function selectInstance($object)
{
return $this->get() instanceof $object ? $this : None::instance();
}
/**
* handleNone() のテストです.
*
* @covers Peach\Markup\DebugContext::handleNone
* @covers Peach\Markup\DebugContext::append
*/
public function testHandleNone()
{
$expected = "None\r\n";
$context = $this->object;
$none = None::getInstance();
$this->expectOutputString($expected);
$context->handleNone($none);
$this->assertSame($expected, $context->getResult());
}
/**
* @dataProvider serializerProvider
*/
public function testIsSerialized($var)
{
$formatter = new None();
$this->assertFalse($formatter->isSerialized($var));
}
/**
* @inheritdoc
* @see QueryInterface::find
* This is an constant on perceived nothings
* @return None
*/
public final function find(callable $hof)
{
return None::getInstance();
}
/**
* @return Option
*/
public static function None()
{
return None::instance();
}
/**
* 結果に何も追加されないことを確認します。
*
* @covers Peach\Markup\DefaultContext::handleNone
*/
public function testHandleNone()
{
$none = None::getInstance();
$obj = $this->object;
$obj->handle($none);
$this->assertSame("", $obj->getResult());
}
/**
* @inheritdoc
* @return None
*/
public function right()
{
return None::getInstance();
}