1: | <?php declare(strict_types=1); |
2: | |
3: | namespace Salient\Iterator\Concern; |
4: | |
5: | use Salient\Iterator\GraphIterator; |
6: | |
7: | /** |
8: | * Implements RecursiveIterator for GraphIterator subclasses |
9: | * |
10: | * @api |
11: | * |
12: | * @phpstan-require-extends GraphIterator |
13: | * @phpstan-require-implements \RecursiveIterator |
14: | */ |
15: | trait RecursiveGraphIteratorTrait |
16: | { |
17: | /** |
18: | * @inheritDoc |
19: | */ |
20: | public function hasChildren(): bool |
21: | { |
22: | /** @var GraphIterator $this */ |
23: | $current = $this->current(); |
24: | if ($current === false) { |
25: | // @codeCoverageIgnoreStart |
26: | return false; |
27: | // @codeCoverageIgnoreEnd |
28: | } |
29: | |
30: | return is_object($current) || is_array($current); |
31: | } |
32: | |
33: | /** |
34: | * @inheritDoc |
35: | */ |
36: | public function getChildren(): ?self |
37: | { |
38: | /** @var GraphIterator $this */ |
39: | $key = $this->key(); |
40: | if ($key === null) { |
41: | // @codeCoverageIgnoreStart |
42: | return null; |
43: | // @codeCoverageIgnoreEnd |
44: | } |
45: | |
46: | if ($this->IsObject) { |
47: | $current = &$this->Graph->{$key}; |
48: | } else { |
49: | // @phpstan-ignore-next-line |
50: | $current = &$this->Graph[$key]; |
51: | } |
52: | |
53: | if (is_object($current) || is_array($current)) { |
54: | return new self($current); |
55: | } |
56: | |
57: | // @codeCoverageIgnoreStart |
58: | return null; |
59: | // @codeCoverageIgnoreEnd |
60: | } |
61: | } |
62: |