| 1 | 2 | simandl | <?php |
| 2 | | | |
| 3 | | | namespace Phem\Core; |
| 4 | | | |
| 5 | | | /** |
| 6 | | | * Description of ObjectMixin |
| 7 | | | * |
| 8 | | | * @author Vejvis |
| 9 | | | */ |
| 10 | | | final class ObjectMixin |
| 11 | | | { |
| 12 | | | |
| 13 | | | /** @var array */ |
| 14 | | | private static $methods; |
| 15 | | | |
| 16 | | | /** |
| 17 | | | * Returns property value. |
| 18 | | | * @param object |
| 19 | | | * @param string property name |
| 20 | | | * @return mixed property value |
| 21 | | | * @throws MemberAccessException if the property is not defined. |
| 22 | | | */ |
| 23 | | | public static function & get($_this, $name) |
| 24 | | | { |
| 25 | | | $class = get_class($_this); |
| 26 | | | |
| 27 | | | if ($name === '') |
| 28 | | | { |
| 29 | | | throw new MemberAccessException("Cannot read a class '$class' property without name."); |
| 30 | | | } |
| 31 | | | |
| 32 | | | if (!isset(self::$methods[$class])) |
| 33 | | | { |
| 34 | | | // get_class_methods returns ONLY PUBLIC methods of objects |
| 35 | | | // but returns static methods too (nothing doing...) |
| 36 | | | // and is much faster than reflection |
| 37 | | | // (works good since 5.0.4) |
| 38 | | | self::$methods[$class] = array_flip(get_class_methods($class)); |
| 39 | | | } |
| 40 | | | |
| 41 | | | // public method as closure getter |
| 42 | | | if (isset(self::$methods[$class][$name])) |
| 43 | | | { |
| 44 | | | $val = function() use ($_this, $name) |
| 45 | | | { |
| 46 | | | return call_user_func_array(array($_this, $name), func_get_args()); |
| 47 | | | }; |
| 48 | | | return $val; |
| 49 | | | } |
| 50 | | | |
| 51 | | | // property getter support |
| 52 | | | $name[0] = $name[0] & "\xDF"; // case-sensitive checking, capitalize first character |
| 53 | | | $m = 'get' . $name; |
| 54 | | | if (isset(self::$methods[$class][$m])) |
| 55 | | | { |
| 56 | | | // ampersands: |
| 57 | | | // - uses &__get() because declaration should be forward compatible |
| 58 | | | // - doesn't call &$_this->$m because user could bypass property setter by: $x = & $obj->property; $x = 'new value'; |
| 59 | | | $val = $_this->$m(); |
| 60 | | | return $val; |
| 61 | | | } |
| 62 | | | |
| 63 | | | $m = 'is' . $name; |
| 64 | | | if (isset(self::$methods[$class][$m])) |
| 65 | | | { |
| 66 | | | $val = $_this->$m(); |
| 67 | | | return $val; |
| 68 | | | } |
| 69 | | | |
| 70 | | | $type = isset(self::$methods[$class]['set' . $name]) ? 'a write-only' : 'an undeclared'; |
| 71 | | | $name = func_get_arg(1); |
| 72 | | | throw new MemberAccessException("Cannot read $type property $class::\$$name."); |
| 73 | | | } |
| 74 | | | |
| 75 | | | /** |
| 76 | | | * Sets value of a property. |
| 77 | | | * @param object |
| 78 | | | * @param string property name |
| 79 | | | * @param mixed property value |
| 80 | | | * @return void |
| 81 | | | * @throws MemberAccessException if the property is not defined or is read-only |
| 82 | | | */ |
| 83 | | | public static function set($_this, $name, $value) |
| 84 | | | { |
| 85 | | | $class = get_class($_this); |
| 86 | | | |
| 87 | | | if ($name === '') |
| 88 | | | { |
| 89 | | | throw new MemberAccessException("Cannot write to a class '$class' property without name."); |
| 90 | | | } |
| 91 | | | |
| 92 | | | if (!isset(self::$methods[$class])) |
| 93 | | | { |
| 94 | | | self::$methods[$class] = array_flip(get_class_methods($class)); |
| 95 | | | } |
| 96 | | | |
| 97 | | | // property setter support |
| 98 | | | $name[0] = $name[0] & "\xDF"; // case-sensitive checking, capitalize first character |
| 99 | | | |
| 100 | | | $m = 'set' . $name; |
| 101 | | | if (isset(self::$methods[$class][$m])) |
| 102 | | | { |
| 103 | | | $_this->$m($value); |
| 104 | | | return; |
| 105 | | | } |
| 106 | | | |
| 107 | | | $type = isset(self::$methods[$class]['get' . $name]) || isset(self::$methods[$class]['is' . $name]) ? 'a read-only' : 'an undeclared'; |
| 108 | | | $name = func_get_arg(1); |
| 109 | | | throw new MemberAccessException("Cannot write to $type property $class::\$$name."); |
| 110 | | | } |
| 111 | | | |
| 112 | | | } |
