| 1: | <?php declare(strict_types = 1); | 
| 2: |  | 
| 3: | namespace PHPStan\PhpDocParser\Ast; | 
| 4: |  | 
| 5: | use function array_key_exists; | 
| 6: |  | 
| 7: | trait NodeAttributes | 
| 8: | { | 
| 9: |  | 
| 10: |  | 
| 11: | private array $attributes = []; | 
| 12: |  | 
| 13: |  | 
| 14: |  | 
| 15: |  | 
| 16: | public function setAttribute(string $key, $value): void | 
| 17: | { | 
| 18: | if ($value === null) { | 
| 19: | unset($this->attributes[$key]); | 
| 20: | return; | 
| 21: | } | 
| 22: | $this->attributes[$key] = $value; | 
| 23: | } | 
| 24: |  | 
| 25: | public function hasAttribute(string $key): bool | 
| 26: | { | 
| 27: | return array_key_exists($key, $this->attributes); | 
| 28: | } | 
| 29: |  | 
| 30: |  | 
| 31: |  | 
| 32: |  | 
| 33: | public function getAttribute(string $key) | 
| 34: | { | 
| 35: | if ($this->hasAttribute($key)) { | 
| 36: | return $this->attributes[$key]; | 
| 37: | } | 
| 38: |  | 
| 39: | return null; | 
| 40: | } | 
| 41: |  | 
| 42: | } | 
| 43: |  |