Brainstorming for sequence handling split based on element criteria

Test.class.php

<?php
use util\data\Sequence;

class Types extends \lang\Enum {
  public static $OPEN, $CLOSED;
}

class Wall extends \lang\Object {
  private $name, $type;

  public function __construct($name, Types $type) {
    $this->name= $name;
    $this->type= $type;
  }

  public function name() { return $this->name; }
  public function type() { return $this->type; }
}

class Test extends \lang\Object {

  static function __static() { Types::__static(); }

  public static function main($args) {
    Sequence::of([new Wall('My Team', Types::$CLOSED), new Wall('Developers', Types::$OPEN)])
      ->map(function($wall) {
        if (Types::$OPEN === $wall->type()) {
          return 'Open walls like '.$wall->name().' are great';
        } else {
          return 'Closed walls make sense sometimes, e.g. for '.$wall->name();
        }
      })
      ->each('util.cmd.Console::writeLine')
    ;
  }
}

See https://github.com/xp-forge/match for the API itself and the performance figures