| 1: | <?php declare(strict_types = 1); |
| 2: | |
| 3: | namespace PHPStan\Analyser; |
| 4: | |
| 5: | /** |
| 6: | * Object of this class is one of the parameters of `NodeScopeResolver::processStmtNodes()`. |
| 7: | * |
| 8: | * It determines whether loops will be analysed once or multiple times |
| 9: | * until the types "stabilize". |
| 10: | * |
| 11: | * When in doubt, use `StatementContext::createTopLevel()`. |
| 12: | */ |
| 13: | final class StatementContext |
| 14: | { |
| 15: | |
| 16: | private function __construct( |
| 17: | private bool $isTopLevel, |
| 18: | ) |
| 19: | { |
| 20: | } |
| 21: | |
| 22: | /** |
| 23: | * @api |
| 24: | */ |
| 25: | public static function createTopLevel(): self |
| 26: | { |
| 27: | return new self(true); |
| 28: | } |
| 29: | |
| 30: | /** |
| 31: | * @api |
| 32: | */ |
| 33: | public static function createDeep(): self |
| 34: | { |
| 35: | return new self(false); |
| 36: | } |
| 37: | |
| 38: | public function isTopLevel(): bool |
| 39: | { |
| 40: | return $this->isTopLevel; |
| 41: | } |
| 42: | |
| 43: | public function enterDeep(): self |
| 44: | { |
| 45: | if ($this->isTopLevel) { |
| 46: | return self::createDeep(); |
| 47: | } |
| 48: | |
| 49: | return $this; |
| 50: | } |
| 51: | |
| 52: | } |
| 53: |