94 lines
2.4 KiB
PHP
94 lines
2.4 KiB
PHP
<?php
|
|
/*
|
|
* This file is part of Object Enumerator.
|
|
*
|
|
* (c) Sebastian Bergmann <sebastian@phpunit.de>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace SebastianBergmann\ObjectEnumerator;
|
|
|
|
use SebastianBergmann\RecursionContext\Context;
|
|
|
|
/**
|
|
* Traverses array structures and object graphs
|
|
* to enumerate all referenced objects.
|
|
*/
|
|
class Enumerator
|
|
{
|
|
/**
|
|
* Returns an array of all objects referenced either
|
|
* directly or indirectly by a variable.
|
|
*
|
|
* @param array|object $variable
|
|
*
|
|
* @return object[]
|
|
*/
|
|
public function enumerate($variable)
|
|
{
|
|
if (!is_array($variable) && !is_object($variable)) {
|
|
throw new InvalidArgumentException;
|
|
}
|
|
|
|
if (isset(func_get_args()[1])) {
|
|
if (!func_get_args()[1] instanceof Context) {
|
|
throw new InvalidArgumentException;
|
|
}
|
|
|
|
$processed = func_get_args()[1];
|
|
} else {
|
|
$processed = new Context;
|
|
}
|
|
|
|
$objects = [];
|
|
|
|
if ($processed->contains($variable)) {
|
|
return $objects;
|
|
}
|
|
|
|
$array = $variable;
|
|
$processed->add($variable);
|
|
|
|
if (is_array($variable)) {
|
|
foreach ($array as $element) {
|
|
if (!is_array($element) && !is_object($element)) {
|
|
continue;
|
|
}
|
|
|
|
$objects = array_merge(
|
|
$objects,
|
|
$this->enumerate($element, $processed)
|
|
);
|
|
}
|
|
} else {
|
|
$objects[] = $variable;
|
|
$reflector = new \ReflectionObject($variable);
|
|
|
|
foreach ($reflector->getProperties() as $attribute) {
|
|
$attribute->setAccessible(true);
|
|
|
|
try {
|
|
$value = $attribute->getValue($variable);
|
|
} catch (\Throwable $e) {
|
|
continue;
|
|
} catch (\Exception $e) {
|
|
continue;
|
|
}
|
|
|
|
if (!is_array($value) && !is_object($value)) {
|
|
continue;
|
|
}
|
|
|
|
$objects = array_merge(
|
|
$objects,
|
|
$this->enumerate($value, $processed)
|
|
);
|
|
}
|
|
}
|
|
|
|
return $objects;
|
|
}
|
|
}
|