| 1: | <?php declare(strict_types = 1); |
| 2: | |
| 3: | namespace PHPStan\Reflection; |
| 4: | |
| 5: | use PHPStan\PhpDoc\ResolvedPhpDocBlock; |
| 6: | use PHPStan\PhpDoc\Tag\AssertTag; |
| 7: | use PHPStan\Type\Type; |
| 8: | use function array_filter; |
| 9: | use function array_map; |
| 10: | use function array_merge; |
| 11: | use function count; |
| 12: | |
| 13: | |
| 14: | |
| 15: | |
| 16: | final class Assertions |
| 17: | { |
| 18: | |
| 19: | private static ?self $empty = null; |
| 20: | |
| 21: | |
| 22: | |
| 23: | |
| 24: | private function __construct(private array $asserts) |
| 25: | { |
| 26: | } |
| 27: | |
| 28: | |
| 29: | |
| 30: | |
| 31: | public function getAll(): array |
| 32: | { |
| 33: | return $this->asserts; |
| 34: | } |
| 35: | |
| 36: | |
| 37: | |
| 38: | |
| 39: | public function getAsserts(): array |
| 40: | { |
| 41: | return array_filter($this->asserts, static fn (AssertTag $assert) => $assert->getIf() === AssertTag::NULL); |
| 42: | } |
| 43: | |
| 44: | |
| 45: | |
| 46: | |
| 47: | public function getAssertsIfTrue(): array |
| 48: | { |
| 49: | return array_merge( |
| 50: | array_filter($this->asserts, static fn (AssertTag $assert) => $assert->getIf() === AssertTag::IF_TRUE), |
| 51: | array_map( |
| 52: | static fn (AssertTag $assert) => $assert->negate(), |
| 53: | array_filter($this->asserts, static fn (AssertTag $assert) => $assert->getIf() === AssertTag::IF_FALSE && !$assert->isEquality()), |
| 54: | ), |
| 55: | ); |
| 56: | } |
| 57: | |
| 58: | |
| 59: | |
| 60: | |
| 61: | public function getAssertsIfFalse(): array |
| 62: | { |
| 63: | return array_merge( |
| 64: | array_filter($this->asserts, static fn (AssertTag $assert) => $assert->getIf() === AssertTag::IF_FALSE), |
| 65: | array_map( |
| 66: | static fn (AssertTag $assert) => $assert->negate(), |
| 67: | array_filter($this->asserts, static fn (AssertTag $assert) => $assert->getIf() === AssertTag::IF_TRUE && !$assert->isEquality()), |
| 68: | ), |
| 69: | ); |
| 70: | } |
| 71: | |
| 72: | |
| 73: | |
| 74: | |
| 75: | public function mapTypes(callable $callable): self |
| 76: | { |
| 77: | $assertTagsCallback = static fn (AssertTag $tag): AssertTag => $tag->withType($callable($tag->getType())); |
| 78: | |
| 79: | return new self(array_map($assertTagsCallback, $this->asserts)); |
| 80: | } |
| 81: | |
| 82: | public function intersectWith(Assertions $other): self |
| 83: | { |
| 84: | return new self(array_merge($this->getAll(), $other->getAll())); |
| 85: | } |
| 86: | |
| 87: | public static function createEmpty(): self |
| 88: | { |
| 89: | $empty = self::$empty; |
| 90: | |
| 91: | if ($empty !== null) { |
| 92: | return $empty; |
| 93: | } |
| 94: | |
| 95: | $empty = new self([]); |
| 96: | self::$empty = $empty; |
| 97: | |
| 98: | return $empty; |
| 99: | } |
| 100: | |
| 101: | public static function createFromResolvedPhpDocBlock(ResolvedPhpDocBlock $phpDocBlock): self |
| 102: | { |
| 103: | $tags = $phpDocBlock->getAssertTags(); |
| 104: | if (count($tags) === 0) { |
| 105: | return self::createEmpty(); |
| 106: | } |
| 107: | |
| 108: | return new self($tags); |
| 109: | } |
| 110: | |
| 111: | } |
| 112: | |