protected function makeKeyCompatible(&$key, &$maxKey, IOrderedMap $incompatibleKeyMap)
{
if (is_int($key) || is_string($key)) {
//Integer strings like "123" get auto cast to integers when set as array keys
$intKey = (int) $key;
if ((string) $intKey === (string) $key && $intKey >= $maxKey) {
$maxKey = $intKey + 1;
}
} elseif ($incompatibleKeyMap->contains($key)) {
$key = $incompatibleKeyMap->get($key);
} else {
$originalKey = $key;
$key = $maxKey++;
$incompatibleKeyMap->set($originalKey, $key);
}
}
/**
* @dataProvider orderedMaps
*/
public function testThatOrderedMapUsesArrayIdentity(IOrderedMap $orderedMap)
{
$keys = ['ints' => [1, 2, 3], 'reversedInts' => [3, 2, 1], 'intsWithArray' => [1, 2, [3]], 'intsWithString' => [1, '2', 3], 'instance1' => [1, 2, new \stdClass()], 'instance2' => [1, 2, new \stdClass()], 'resource1' => [fopen('php://memory', 'r+'), 2, 3], 'resource2' => [fopen('php://memory', 'r+'), 2, 3]];
foreach ($keys as $name => $key) {
$orderedMap->set($key, $name);
}
foreach ($keys as $name => $key) {
$this->assertSame($name, $orderedMap->get($key));
}
$array = $this->orderedMapKeyValues();
$identicalArray = $array;
$originalInstance = $array['instance'];
$nonIdenticalArray = $array;
$nonIdenticalArray['instance'] = new \stdClass();
$anotherIdenticalArray = $nonIdenticalArray;
$anotherIdenticalArray['instance'] = $originalInstance;
$instance = new \stdClass();
$orderedMap->set($array, $instance);
$this->assertTrue($orderedMap->contains($identicalArray));
$this->assertSame($instance, $orderedMap->get($identicalArray));
$this->assertFalse($orderedMap->contains($nonIdenticalArray));
$this->assertNull($orderedMap->get($nonIdenticalArray));
$this->assertTrue($orderedMap->contains($anotherIdenticalArray));
$this->assertSame($instance, $orderedMap->get($anotherIdenticalArray));
}