Performance profiling for xp-framework/collections#1

Collections.class.php

<?php

use util\collections\{HashTable, HashSet, Queue, Stack};

class Collections extends \util\profiling\Measurable {

  #[@measure]
  public function hashTable() {
    $h= new HashTable();
    $h->put('key',  'value');
    $h->put('color',  'green');
    if ($h->containsKey('color')) {
      $h->remove('color');
    }
    return $h->get('key', 'value');
  }

  #[@measure]
  public function hashSet() {
    $h= new HashSet();
    $h->add('key');
    $h->add('color');
    if ($h->contains('color')) {
      $h->remove('color');
    }
    return $h->size();
  }

  #[@measure]
  public function queue() {
    $q= new Queue();
    $q->put('value');
    $q->put('green');
    if ($element= $q->peek()) {
      $q->remove($element);
    }
    return $q->get();
  }

  #[@measure]
  public function stack() {
    $q= new Stack();
    $q->push('value');
    $q->push('green');
    return $q->pop();
  }
}