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<?php namespace Tarsana\Functional; |
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/** |
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* Useful functions to handle objects (associative arrays are considered objects). |
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* @file |
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*/ |
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/** |
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* Returns a deep copy of the given value. |
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* |
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* `Callable`s are not copied but returned by reference. |
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* ```php |
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* $data = (object) [ |
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* 'content' => (object) ['name' => 'foo'], |
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* 'other' => 'value' |
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* ]; |
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* |
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* $clonedData = F\clone_($data); |
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* $clonedData->content->name = 'bar'; |
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* |
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* $clonedData; //=> (object) ['content' => (object) ['name' => 'bar'], 'other' => 'value'] |
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* $data; //=> (object) ['content' => (object) ['name' => 'foo'], 'other' => 'value'] |
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* ``` |
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* |
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* @signature a -> a |
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* @param mixed $value |
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* @return mixed |
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*/ |
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function clone_() { |
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static $clone = false; |
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$clone = $clone ?: curry(function($value) use(&$clone) { |
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switch (type($value)) { |
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case 'Null': |
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case 'Boolean': |
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case 'String': |
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case 'Function': |
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case 'Resource': |
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case 'Number': |
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return $value; |
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case 'ArrayObject': |
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case 'Array': |
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case 'List': |
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return array_map($clone, $value); |
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case 'Error': |
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case 'Stream': |
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case 'Object': |
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$result = clone $value; |
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foreach (keys($value) as $key) { |
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$result->{$key} = $clone($result->{$key}); |
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} |
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return $result; |
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} |
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return $value; |
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}); |
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return _apply($clone, func_get_args()); |
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} |
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/** |
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* Converts an object to an associative array containing public non-static attributes. |
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* |
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* If `$object` is not an object, it is returned unchanged. |
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* |
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* ```php |
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* class AttributesTestClass { |
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* private $a; |
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* public $b = 1; |
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* public $c; |
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* private $d; |
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* static $e; |
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* } |
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* |
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* $test = new AttributesTestClass; |
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* F\attributes($test); //=> ['b' => 1, 'c' => null] |
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* ``` |
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* |
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* @stream |
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* @signature {k: v} -> {k: v} |
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* @param object|array $object |
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* @return array |
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*/ |
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function attributes() { |
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static $attrs = false; |
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$attrs = $attrs ?: curry(function($object) { |
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if (is_object($object)) |
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return get_object_vars($object); |
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return $object; |
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}); |
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return _apply($attrs, func_get_args()); |
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} |
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/** |
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* Returns a list of array's keys or object's public attributes names. |
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* |
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* ```php |
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* F\keys([1, 2, 3]); //=> [0, 1, 2] |
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* F\keys(['name' => 'foo', 'age' => 11]); //=> ['name', 'age'] |
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* F\keys((object)['name' => 'foo', 'age' => 11]); //=> ['name', 'age'] |
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* ``` |
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* |
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* @stream |
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* @signature [*] -> [Number] |
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* @signature {k: v} -> [k] |
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* @param object|array $object |
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* @return array |
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*/ |
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View Code Duplication |
function keys() { |
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static $keys = false; |
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$keys = $keys ?: curry(function($object) { |
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return is_object($object) |
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? array_keys(get_object_vars($object)) |
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: array_keys($object); |
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}); |
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return _apply($keys, func_get_args()); |
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} |
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/** |
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* Returns a list of array's values or object's public attributes values. |
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* |
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* ```php |
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* F\values([1, 2, 3]); //=> [1, 2, 3] |
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* F\values(['name' => 'foo', 'age' => 11]); //=> ['foo', 11] |
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* F\values((object)['name' => 'foo', 'age' => 11]); //=> ['foo', 11] |
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* ``` |
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* |
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* @stream |
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* @signature [a] -> [a] |
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* @signature {k: v} -> [v] |
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* @param object|array $object |
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* @return array |
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*/ |
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View Code Duplication |
function values() { |
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static $values = false; |
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$values = $values ?: curry(function($object) { |
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return is_object($object) |
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? array_values(get_object_vars($object)) |
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: array_values($object); |
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}); |
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return _apply($values, func_get_args()); |
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} |
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/** |
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* Checks if the given array or object has a specific key or public attribute. |
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* |
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* ```php |
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* class HasTestClass { |
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* public $a = 1; |
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* private $b = 2; |
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* protected $c = 3; |
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* public $d; |
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* } |
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* $array = [ |
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* 'type' => 'Array', |
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* 'length' => 78 |
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* ]; |
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* $array[3] = 'three'; |
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* $object = (object) ['name' => 'ok']; |
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* |
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* $hasName = F\has('name'); |
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* |
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* F\has('type', $array); //=> true |
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* F\has(3, $array); //=> true |
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* $hasName($array); //=> false |
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* $hasName($object); //=> true |
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* F\has('length', $object); //=> false |
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* F\has('a', new HasTestClass); //=> true |
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* F\has('b', new HasTestClass); //=> false |
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* ``` |
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* |
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* @stream |
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* @signature k -> {k: v} -> Boolean |
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* @param string|int $name |
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* @param mixed $object |
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* @return bool |
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*/ |
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function has() { |
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static $has = false; |
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$has = $has ?: curry(function($name, $object){ |
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if (is_object($object)) return isset($object->{$name}); |
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if (is_array($object)) return isset($object[$name]); |
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return false; |
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}); |
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return _apply($has, func_get_args()); |
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} |
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/** |
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* Gets the value of a key from an array or the |
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* value of an public attribute from an object. |
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* |
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* If the key/attribute is missing, `null` is returned. |
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* ```php |
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* $data = [ |
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* ['name' => 'foo', 'type' => 'test'], |
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* ['name' => 'bar', 'type' => 'test'], |
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* (object) ['name' => 'baz'], |
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* [1, 2, 3] |
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* ]; |
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* $nameOf = F\get('name'); |
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* F\get(0, $data); //=> ['name' => 'foo', 'type' => 'test'] |
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* $nameOf($data[1]); //=> 'bar' |
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* $nameOf($data[2]); //=> 'baz' |
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* $nameOf($data[3]); //=> null |
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* ``` |
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* |
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* @stream |
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* @signature k -> {k: v} -> Maybe(v) |
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* @param string $name |
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* @param array $object |
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* @return mixed |
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*/ |
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function get() { |
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static $get = false; |
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$get = $get ?: curry(function($name, $object){ |
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return is_object($object) |
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? (isset($object->{$name}) ? $object->{$name} : null) |
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: (isset($object[$name]) ? $object[$name] : null); |
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}); |
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return _apply($get, func_get_args()); |
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} |
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/** |
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* Gets a value from an array/object using a path of keys/attributes. |
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* |
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* ```php |
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* $data = [ |
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* ['name' => 'foo', 'type' => 'test'], |
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* ['name' => 'bar', 'type' => 'test'], |
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* (object) ['name' => 'baz', 'scores' => [1, 2, 3]] |
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* ]; |
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* $nameOfFirst = F\getPath([0, 'name']); |
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* $nameOfFirst($data); //=> 'foo' |
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* F\getPath([2, 'scores', 1], $data); //=> 2 |
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* F\getPath([2, 'foo', 1], $data); //=> null |
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* ``` |
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* |
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* @stream |
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* @signature [k] -> {k: v} -> v |
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* @param array $path |
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* @param mixed $object |
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* @return mixed |
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*/ |
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View Code Duplication |
function getPath() { |
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static $getPath = false; |
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$getPath = $getPath ?: curry(function($path, $object) { |
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$result = $object; |
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foreach ($path as &$attr) { |
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$result = get($attr, $result); |
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} |
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return $result; |
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}); |
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return _apply($getPath, func_get_args()); |
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} |
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/** |
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* Returns a new array or object with the value of a key or a public attribute set |
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* to a specific value. |
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* |
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* if the key/attribute is missing and `$object` is an `array` |
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* or `stdClass`; the key/attribute is added. Otherwise `null` is returned. |
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* ```php |
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* $task = ['name' => 'test', 'complete' => false]; |
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* $done = F\set('complete', true); |
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* $done($task); //=> ['name' => 'test', 'complete' => true] |
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* $done((object) $task); //=> (object) ['name' => 'test', 'complete' => true] |
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* F\set('description', 'Some text here', $task); //=> ['name' => 'test', 'complete' => false, 'description' => 'Some text here'] |
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* ``` |
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* |
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* @stream |
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* @signature k -> v -> {k: v} -> {k: v} |
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* @param string|int $name |
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* @param mixed $value |
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* @param mixed $object |
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* @return mixed |
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*/ |
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function set() { |
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static $set = false; |
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$set = $set ?: curry(function($name, $value, $object) { |
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if (is_object($object)) { |
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$object = clone_($object); |
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$object->{$name} = $value; |
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} else |
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$object[$name] = $value; |
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return $object; |
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}); |
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return _apply($set, func_get_args()); |
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} |
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/** |
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* Updates the value of a key or public attribute using a callable. |
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* |
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* ```php |
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* $person = [ |
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* 'name' => 'foo', |
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* 'age' => 11 |
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* ]; |
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* $growUp = F\update('age', F\plus(1)); |
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* $growUp($person); //=> ['name' => 'foo', 'age' => 12] |
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* // updating a missing attribute has no effect |
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* F\update('wow', F\plus(1), $person); //=> ['name' => 'foo', 'age' => 11] |
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* ``` |
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* |
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* @stream |
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* @signature k -> (v -> v) -> {k: v} -> {k: v} |
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* @param string|int $name |
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* @param callable $fn |
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* @param mixed $object |
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* @return mixed |
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*/ |
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View Code Duplication |
function update() { |
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308
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static $update = false; |
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309
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$update = $update ?: curry(function($name, $fn, $object) { |
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310
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$value = get($name, $object); |
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311
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return (null === $value) ? $object : set($name, $fn($value), $object); |
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312
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}); |
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return _apply($update, func_get_args()); |
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314
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} |
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315
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316
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/** |
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317
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* Checks if an attribute/value of an object/array passes the given predicate. |
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318
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* |
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319
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* ```php |
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320
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* $foo = ['name' => 'foo', 'age' => 11]; |
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321
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* $isAdult = F\satisfies(F\lte(18), 'age'); |
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322
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* F\satisfies(F\startsWith('f'), 'name', $foo); //=> true |
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323
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* F\satisfies(F\startsWith('g'), 'name', $foo); //=> false |
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324
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* F\satisfies(F\startsWith('g'), 'friends', $foo); //=> false |
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325
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* $isAdult($foo); //=> false |
|
326
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* ``` |
|
327
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* |
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328
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* @stream |
|
329
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* @signature (a -> Boolean) -> k -> {k : a} -> Boolean |
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330
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* @param callable $predicate |
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331
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* @param string|int $key |
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332
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* @param mixed $object |
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333
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* @return bool |
|
334
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*/ |
|
335
|
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function satisfies() { |
|
336
|
|
|
static $satisfies = false; |
|
337
|
|
|
$satisfies = $satisfies ?: curry(function($predicate, $key, $object) { |
|
338
|
|
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return has($key, $object) && $predicate(get($key, $object)); |
|
339
|
|
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}); |
|
340
|
|
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return _apply($satisfies, func_get_args()); |
|
341
|
|
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} |
|
342
|
|
|
|
|
343
|
|
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/** |
|
344
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|
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* Checks if a list of attribute/value of an object/array passes all the given predicates. |
|
345
|
|
|
* |
|
346
|
|
|
* ```php |
|
347
|
|
|
* $persons = [ |
|
348
|
|
|
* ['name' => 'foo', 'age' => 11], |
|
349
|
|
|
* ['name' => 'bar', 'age' => 9], |
|
350
|
|
|
* ['name' => 'baz', 'age' => 16], |
|
351
|
|
|
* ['name' => 'zeta', 'age' => 33], |
|
352
|
|
|
* ['name' => 'beta', 'age' => 25] |
|
353
|
|
|
* ]; |
|
354
|
|
|
* |
|
355
|
|
|
* $isValid = F\satisfiesAll([ |
|
356
|
|
|
* 'name' => F\startsWith('b'), |
|
357
|
|
|
* 'age' => F\lte(15) |
|
358
|
|
|
* ]); |
|
359
|
|
|
* |
|
360
|
|
|
* F\filter($isValid, $persons); //=> [['name' => 'baz', 'age' => 16], ['name' => 'beta', 'age' => 25]] |
|
361
|
|
|
* ``` |
|
362
|
|
|
* |
|
363
|
|
|
* @stream |
|
364
|
|
|
* @signature {String: (a -> Boolean)} -> {k : a} -> Boolean |
|
365
|
|
|
* @param array $predicates |
|
|
|
|
|
|
366
|
|
|
* @param mixed $object |
|
|
|
|
|
|
367
|
|
|
* @return bool |
|
368
|
|
|
*/ |
|
369
|
|
View Code Duplication |
function satisfiesAll() { |
|
|
|
|
|
|
370
|
|
|
static $satisfiesAll = false; |
|
371
|
|
|
$satisfiesAll = $satisfiesAll ?: curry(function($predicates, $object) { |
|
372
|
|
|
foreach ($predicates as $key => $predicate) { |
|
373
|
|
|
if (!satisfies($predicate, $key, $object)) |
|
374
|
|
|
return false; |
|
375
|
|
|
} |
|
376
|
|
|
return true; |
|
377
|
|
|
}); |
|
378
|
|
|
return _apply($satisfiesAll, func_get_args()); |
|
379
|
|
|
} |
|
380
|
|
|
|
|
381
|
|
|
/** |
|
382
|
|
|
* Checks if a list of attribute/value of an object/array passes any of the given predicates. |
|
383
|
|
|
* |
|
384
|
|
|
* ```php |
|
385
|
|
|
* $persons = [ |
|
386
|
|
|
* ['name' => 'foo', 'age' => 11], |
|
387
|
|
|
* ['name' => 'bar', 'age' => 9], |
|
388
|
|
|
* ['name' => 'baz', 'age' => 16], |
|
389
|
|
|
* ['name' => 'zeta', 'age' => 33], |
|
390
|
|
|
* ['name' => 'beta', 'age' => 25] |
|
391
|
|
|
* ]; |
|
392
|
|
|
* |
|
393
|
|
|
* $isValid = F\satisfiesAny([ |
|
394
|
|
|
* 'name' => F\startsWith('b'), |
|
395
|
|
|
* 'age' => F\lte(15) |
|
396
|
|
|
* ]); |
|
397
|
|
|
* |
|
398
|
|
|
* F\filter($isValid, $persons); //=> [['name' => 'bar', 'age' => 9], ['name' => 'baz', 'age' => 16], ['name' => 'zeta', 'age' => 33], ['name' => 'beta', 'age' => 25]] |
|
399
|
|
|
* ``` |
|
400
|
|
|
* |
|
401
|
|
|
* @stream |
|
402
|
|
|
* @signature {String: (a -> Boolean)} -> {k : a} -> Boolean |
|
403
|
|
|
* @param array $predicates |
|
|
|
|
|
|
404
|
|
|
* @param mixed $object |
|
|
|
|
|
|
405
|
|
|
* @return bool |
|
406
|
|
|
*/ |
|
407
|
|
View Code Duplication |
function satisfiesAny() { |
|
|
|
|
|
|
408
|
|
|
static $satisfiesAny = false; |
|
409
|
|
|
$satisfiesAny = $satisfiesAny ?: curry(function($predicates, $object) { |
|
410
|
|
|
foreach ($predicates as $key => $predicate) { |
|
411
|
|
|
if (satisfies($predicate, $key, $object)) |
|
412
|
|
|
return true; |
|
413
|
|
|
} |
|
414
|
|
|
return false; |
|
415
|
|
|
}); |
|
416
|
|
|
return _apply($satisfiesAny, func_get_args()); |
|
417
|
|
|
} |
|
418
|
|
|
|
|
419
|
|
|
/** |
|
420
|
|
|
* Converts an object or associative array to an array of [key, value] pairs. |
|
421
|
|
|
* |
|
422
|
|
|
* ```php |
|
423
|
|
|
* $list = ['key' => 'value', 'number' => 53, 'foo', 'bar']; |
|
424
|
|
|
* F\toPairs($list); //=> [['key', 'value'], ['number', 53], [0, 'foo'], [1, 'bar']] |
|
425
|
|
|
* ``` |
|
426
|
|
|
* |
|
427
|
|
|
* @stream |
|
428
|
|
|
* @signature {k: v} -> [(k,v)] |
|
429
|
|
|
* @signature [v] -> [(Number,v)] |
|
430
|
|
|
* @param array $object |
|
|
|
|
|
|
431
|
|
|
* @return array |
|
432
|
|
|
*/ |
|
433
|
|
|
function toPairs() { |
|
434
|
|
|
static $toPairs = false; |
|
435
|
|
|
$toPairs = $toPairs ?: curry(function($object) { |
|
436
|
|
|
if (is_object($object)) |
|
437
|
|
|
$object = get_object_vars($object); |
|
438
|
|
|
$result = []; |
|
439
|
|
|
foreach ($object as $key => $value) { |
|
440
|
|
|
$result[] = [$key, $value]; |
|
441
|
|
|
} |
|
442
|
|
|
return $result; |
|
443
|
|
|
}); |
|
444
|
|
|
return _apply($toPairs, func_get_args()); |
|
445
|
|
|
} |
|
446
|
|
|
|
tarsana /
functional
Loading history...
This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italyis not defined by the methodfinale(...).The most likely cause is that the parameter was removed, but the annotation was not.