hirak

<?php
abstract class Enum
{
    private $scalar;

    function __construct($value)
    {
        $ref = new ReflectionObject($this);
        $consts = $ref->getConstants();
        if (! in_array($value, $consts, true)) {

hirak

class Hoge {
  static function foo() {
    echo 'Hoge::foo';
  }
}

$hoge = new Hoge;
$hoge->foo(); //一切エラーは発生しない

hirak

/*
hogehoge();
fugafuga();
//*/

hirak

<?php
// intだけに制限する
class IntArray extends ArrayObject
{
  function offsetSet($offset, $value) {
    if (is_int($value)) {
      return parent::offsetSet($offset, $value);
    }
    throw new InvalidArgumentException;
  }

hirak

function Klass(){}
Klass.prototype.foo = 'foo';

var o = new Klass;
console.log(o.constructor.name); //Klass

hirak

<?php
class A {
}

$classname = 'A';

$a = new A; //Aオブジェクト1
$b = new $classname; //Aオブジェクト2
$c = new $a; //Aオブジェクト3

hirak

function Class(c) {
    if (c == null) {
        c = function(){};
    }
    c.extend = _extends;
    c.mixin = _mixin;
    c.statics = _static;
    return c;
}
function _extends(uber) {

hirak

var global = this;

hirak

function namespace(str) {
  var names=str.split(".")
    , i, l, cur = Function("return this")()
    ;
  for (i=0,l=names.length; i<l; i++) {
    cur[names[i]] = cur[names[i]] || {};
    cur = cur[names[i]];
  }
  return cur;
}

hirak

var a = "global";
with ({a:"local"}) {
  console.log(a); //"local"
  with ({a:"local2"}) {  /* 入れ子にできる */
    console.log(a); //"local2"
  }
  console.log(a); //"local"
}
console.log(a); //"global"