| 1: | <?php declare(strict_types = 1); |
| 2: | |
| 3: | namespace PHPStan\Type; |
| 4: | |
| 5: | use PHPStan\PhpDocParser\Ast\Type\GenericTypeNode; |
| 6: | use PHPStan\PhpDocParser\Ast\Type\IdentifierTypeNode; |
| 7: | use PHPStan\PhpDocParser\Ast\Type\TypeNode; |
| 8: | use PHPStan\Type\Generic\TemplateTypeVariance; |
| 9: | use PHPStan\Type\Traits\LateResolvableTypeTrait; |
| 10: | use PHPStan\Type\Traits\NonGeneralizableTypeTrait; |
| 11: | use function sprintf; |
| 12: | |
| 13: | |
| 14: | class KeyOfType implements CompoundType, LateResolvableType |
| 15: | { |
| 16: | |
| 17: | use LateResolvableTypeTrait; |
| 18: | use NonGeneralizableTypeTrait; |
| 19: | |
| 20: | public function __construct(private Type $type) |
| 21: | { |
| 22: | } |
| 23: | |
| 24: | public function getType(): Type |
| 25: | { |
| 26: | return $this->type; |
| 27: | } |
| 28: | |
| 29: | public function getReferencedClasses(): array |
| 30: | { |
| 31: | return $this->type->getReferencedClasses(); |
| 32: | } |
| 33: | |
| 34: | public function getReferencedTemplateTypes(TemplateTypeVariance $positionVariance): array |
| 35: | { |
| 36: | return $this->type->getReferencedTemplateTypes($positionVariance); |
| 37: | } |
| 38: | |
| 39: | public function equals(Type $type): bool |
| 40: | { |
| 41: | return $type instanceof self |
| 42: | && $this->type->equals($type->type); |
| 43: | } |
| 44: | |
| 45: | public function describe(VerbosityLevel $level): string |
| 46: | { |
| 47: | return sprintf('key-of<%s>', $this->type->describe($level)); |
| 48: | } |
| 49: | |
| 50: | public function isResolvable(): bool |
| 51: | { |
| 52: | return !TypeUtils::containsTemplateType($this->type); |
| 53: | } |
| 54: | |
| 55: | protected function getResult(): Type |
| 56: | { |
| 57: | return $this->type->getIterableKeyType(); |
| 58: | } |
| 59: | |
| 60: | |
| 61: | |
| 62: | |
| 63: | public function traverse(callable $cb): Type |
| 64: | { |
| 65: | $type = $cb($this->type); |
| 66: | |
| 67: | if ($this->type === $type) { |
| 68: | return $this; |
| 69: | } |
| 70: | |
| 71: | return new self($type); |
| 72: | } |
| 73: | |
| 74: | public function traverseSimultaneously(Type $right, callable $cb): Type |
| 75: | { |
| 76: | if (!$right instanceof self) { |
| 77: | return $this; |
| 78: | } |
| 79: | |
| 80: | $type = $cb($this->type, $right->type); |
| 81: | |
| 82: | if ($this->type === $type) { |
| 83: | return $this; |
| 84: | } |
| 85: | |
| 86: | return new self($type); |
| 87: | } |
| 88: | |
| 89: | public function toPhpDocNode(): TypeNode |
| 90: | { |
| 91: | return new GenericTypeNode(new IdentifierTypeNode('key-of'), [$this->type->toPhpDocNode()]); |
| 92: | } |
| 93: | |
| 94: | } |
| 95: | |