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<?php |
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/** |
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* PHP: Nelson Martell Library file |
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* |
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* Content: |
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* - Class definition: [NelsonMartell] Object |
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* |
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* Copyright © 2014-2017 Nelson Martell (http://nelson6e65.github.io) |
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* |
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* Licensed under The MIT License (MIT) |
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* For full copyright and license information, please see the LICENSE |
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* Redistributions of files must retain the above copyright notice. |
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* |
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* @copyright 2014-2017 Nelson Martell |
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* @link http://nelson6e65.github.io/php_nml/ |
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* @since 0.1.1 |
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License (MIT) |
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* */ |
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namespace NelsonMartell; |
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/** |
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* Base class that encapsulates strict properties and other basic features. |
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* |
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* |
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* @author Nelson Martell <[email protected]> |
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* @since 0.1.1 |
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* @see PropertiesHandler |
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* */ |
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class StrictObject implements IComparer, IStrictPropertiesContainer, IConvertibleToString |
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{ |
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use PropertiesHandler; |
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/** |
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* Constructor. |
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*/ |
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public function __construct() |
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{ |
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} |
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/** |
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* Convierte esta instancia en su representación de cadena. |
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* Para modificar el funcionamiento de esta función, debe reemplazarse |
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* la función ObjectClass::toString() |
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* |
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* @return string |
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* @see StrictObject::toString() |
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* */ |
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final public function __toString() |
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{ |
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//$args = null; |
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//list($args) = func_get_args(); |
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return $this->toString(); |
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} |
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/** |
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* Convierte la instancia actual en su representación de cadena. |
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* |
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* @return string |
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* */ |
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public function toString() |
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{ |
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$type = typeof($this); |
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if (defined('CODE_ANALYSIS')) { |
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if ($type->Name != 'NelsonMartell\StrictObject') { |
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$args = [ |
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'access' => 'public', |
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'base_class' => __CLASS__, |
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'class' => $type->Name, |
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'function' => __FUNCTION__, |
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]; |
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$msg = msg('Using default "{base_class}::{function}" ({access}) method.', $args); |
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$msg .= msg( |
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' You can replace (override) its behavior by creating "{class}::{function}" ({access}) method.', |
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$args |
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); |
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trigger_error($msg, E_USER_NOTICE); |
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} |
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} |
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return '{ '.$type.' }'; |
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} |
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/** |
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* Indica si el objeto especificado es igual a la instancia actual. |
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* |
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* Note: This methods must to be overriden. |
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* |
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* @param mixed $other Another object to compare equality. |
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* |
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* @return bool |
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* */ |
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public function equals($other) |
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{ |
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if (defined('CODE_ANALYSIS')) { |
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if ($this instanceof IEquatable) { |
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$type = typeof($this); |
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$args = [ |
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'access' => 'public', |
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'base_class' => __CLASS__, |
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'class' => $type->Name, |
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'function' => __FUNCTION__, |
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]; |
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$msg = msg( |
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'You implemented IEquatable, but using default "{base_class}::{function}" ({access}) method.', |
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$args |
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); |
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$msg .= msg( |
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' You can replace (override) its behavior by creating "{class}::{function}" ({access}) method.', |
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$args |
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); |
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trigger_error($msg, E_USER_NOTICE); |
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} |
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} |
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return $this == $other; |
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} |
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/** |
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* Determina la posición relativa del objeto de la izquierda con respecto al de la derecha. |
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* |
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* Compatible with, strings, integers, boolean, arrays and classes implementing ``IComparable`` interface. |
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* |
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* Puede usarse como segundo argumento en la función de ordenamiento de |
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* arrays 'usort'. |
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* |
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* Notes: |
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* - Comparison is made in natural way if they are of the same type. If not, is used the PHP standard |
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* comparison. |
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* - If ``$left`` and ``$right`` are arrays, comparison is made by first by 'key' (as strings) and then by |
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* 'values' (using this method recursively). |
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* |
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* # Override |
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* You can override this method to implement a contextual sorting behaviour for ``usort()`` function. |
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* If you only need to compare instances of your class with other objects, implement |
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* ``NelsonMartell\IComparable`` instead. |
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* |
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* @param mixed $left Left object. |
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* @param mixed $right Right object. |
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* |
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* @return int|null |
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* Returns: |
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* - ``= 0`` if $left is considered equivalent to $other; |
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* - ``> 0`` if $left is considered greater than $other; |
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* - ``< 0`` if $left is considered less than $other; |
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* - ``null`` if $left can't be compared to $other . |
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* @see IComparer::compare() |
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* @see IComparable::compareTo() |
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* @see \strnatcmp() |
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* @see \usort() |
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* */ |
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public static function compare($left, $right) |
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{ |
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$r = null; |
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if ($left instanceof IComparable) { |
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$r = $left->compareTo($right); |
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} elseif ($right instanceof IComparable) { |
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$r = $right->compareTo($left); |
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if ($r !== null) { |
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$r *= -1; // Invert result |
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} |
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} else { |
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$ltype = typeof($left); |
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$rtype = typeof($right); |
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// If they are of the same type. |
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if ($ltype->Name === $rtype->Name) { |
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switch ($ltype->Name) { |
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case 'string': |
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$r = strnatcmp($left, $right); |
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break; |
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case 'boolean': |
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$r = (int) $left - (int) $right; |
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break; |
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case 'integer': |
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$r = $left - $right; |
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break; |
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case 'float': |
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case 'double': |
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$r = (int) ceil($left - $right); |
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break; |
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case 'array': |
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$r = count($left) - count($right); |
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if ($r === 0) { |
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reset($left); |
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reset($right); |
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do { |
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$lKey = key($left); |
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$lValue = current($left); |
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$rKey = key($right); |
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$rValue = current($right); |
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$r = static::compare((string) $lKey, (string) $rKey); |
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if ($r === 0) { |
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// Recursive call to compare values |
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$r = static::compare($lValue, $rValue); |
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} |
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next($left); |
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next($right); |
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} while (key($left) !== null && key($right) !== null && $r === 0); |
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} |
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break; |
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default: |
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if ($left == $right) { |
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$r = 0; |
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} else { |
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$r = ($left > $right) ? +1 : -1; |
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} |
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} |
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} else { |
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if ($left == $right) { |
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$r = 0; |
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} elseif ($left > $right) { |
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$r = 1; |
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} elseif ($left < $right) { |
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$r = -1; |
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} else { |
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// If can't determinate, retuns null |
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$r = null; |
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} |
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} |
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} |
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return $r; |
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} |
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} |
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This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.
To visualize
will produce issues in the first and second line, while this second example
will produce no issues.