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<?php |
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namespace Colada\X; |
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use ArrayAccess; |
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use BadMethodCallException; |
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/** |
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* Immutable value wrapper |
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* |
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* @author Alexey Shokov <[email protected]> |
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*/ |
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class Value implements ArrayAccess, ValueWrapper |
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{ |
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/** |
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* @var mixed |
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*/ |
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private $value; |
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/** |
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* @return \Closure |
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*/ |
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public static function getConstructorForValue() |
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{ |
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return function ($value) { |
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return new static($value); |
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}; |
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} |
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/** |
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* @param mixed $value |
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*/ |
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public function __construct($value = null) |
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{ |
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$this->value = $value; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function __getWrappedValue() |
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{ |
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return $this->value; |
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} |
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/** |
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* @param mixed $key |
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* |
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* @return static |
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*/ |
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View Code Duplication |
public function offsetGet($key) |
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{ |
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if (is_array_accessible($this->value)) { |
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return new static($this->value[$key]); |
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} |
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throw new BadMethodCallException('ArrayAccess unsupported for current value.'); |
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} |
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/** |
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* @param mixed $key |
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* |
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* @return void |
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*/ |
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public function offsetUnset($key) |
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{ |
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if (is_array_accessible($this->value)) { |
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unset($this->value[$key]); |
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return; |
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} |
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throw new BadMethodCallException('ArrayAccess unsupported for current value.'); |
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} |
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/** |
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* @param mixed $key |
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* |
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* @return bool |
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*/ |
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public function offsetExists($key) |
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{ |
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if (is_array_accessible($this->value)) { |
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return isset($this->value[$key]); |
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} |
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throw new BadMethodCallException('ArrayAccess unsupported for current value.'); |
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} |
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/** |
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* @param mixed $key |
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* @param mixed $value |
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* |
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* @return void |
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*/ |
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View Code Duplication |
public function offsetSet($key, $value) |
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{ |
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if (is_array_accessible($this->value)) { |
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$this->value[$key] = $value; |
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return; |
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} |
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throw new BadMethodCallException('ArrayAccess unsupported for current value.'); |
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} |
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/** |
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* @param string $field |
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* |
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* @return static |
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*/ |
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public function __get($field) |
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{ |
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if (is_object($this->value)) { |
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return new static($this->value->$field); |
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} |
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throw new BadMethodCallException('__get() is unsupported for current value.'); |
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} |
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/** |
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* @param string $field |
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* @param mixed $value |
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* |
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* @return void Result is always the assigned value. |
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*/ |
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public function __set($field, $value) |
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{ |
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if (is_object($this->value)) { |
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$this->value->$field = $value; |
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} |
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throw new BadMethodCallException('__set() is unsupported for current value.'); |
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} |
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public function __isset($field) |
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{ |
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if (is_object($this->value)) { |
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return isset($this->value->$field); |
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} |
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throw new BadMethodCallException('__isset() is unsupported for current value.'); |
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} |
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public function __unset($field) |
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{ |
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if (is_object($this->value)) { |
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unset($this->value->$field); |
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return; |
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} |
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throw new BadMethodCallException('__unset() is unsupported for current value.'); |
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} |
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/** |
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* @param string $name |
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* @param array $arguments |
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* |
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* @return static |
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*/ |
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public function __call($name, $arguments) |
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{ |
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if (is_object($this->value) && is_callable([$this->value, $name])) { |
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$method = [$this->value, $name]; |
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} else { |
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throw new BadMethodCallException('Unknown method "' . $name . '"'); |
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} |
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$result = call_user_func_array($method, $arguments); |
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return new static($result); |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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// For objects without __toString() an exception will be thrown. This is OK, because the same will happen if |
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// __toString() is called directly on them. |
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return (string) $this->value; |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.