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178 lines (142 loc) · 3.63 KB
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<?php declare(strict_types = 1);
namespace PHPStan\Type;
use PHPStan\TrinaryLogic;
use PHPStan\Type\Traits\NonGeneralizableTypeTrait;
use PHPStan\Type\Traits\NonGenericTypeTrait;
use PHPStan\Type\Traits\ObjectTypeTrait;
use PHPStan\Type\Traits\UndecidedComparisonTypeTrait;
use function sprintf;
/** @api */
class ObjectWithoutClassType implements SubtractableType
{
use ObjectTypeTrait;
use NonGenericTypeTrait;
use UndecidedComparisonTypeTrait;
use NonGeneralizableTypeTrait;
private ?Type $subtractedType;
/** @api */
public function __construct(
?Type $subtractedType = null,
)
{
if ($subtractedType instanceof NeverType) {
$subtractedType = null;
}
$this->subtractedType = $subtractedType;
}
/**
* @return string[]
*/
public function getReferencedClasses(): array
{
return [];
}
public function accepts(Type $type, bool $strictTypes): TrinaryLogic
{
if ($type instanceof CompoundType) {
return $type->isAcceptedBy($this, $strictTypes);
}
return TrinaryLogic::createFromBoolean(
$type instanceof self || $type instanceof TypeWithClassName,
);
}
public function isSuperTypeOf(Type $type): TrinaryLogic
{
if ($type instanceof CompoundType) {
return $type->isSubTypeOf($this);
}
if ($type instanceof self) {
if ($this->subtractedType === null) {
return TrinaryLogic::createYes();
}
if ($type->subtractedType !== null) {
$isSuperType = $type->subtractedType->isSuperTypeOf($this->subtractedType);
if ($isSuperType->yes()) {
return TrinaryLogic::createYes();
}
}
return TrinaryLogic::createMaybe();
}
if ($type instanceof TypeWithClassName) {
if ($this->subtractedType === null) {
return TrinaryLogic::createYes();
}
return $this->subtractedType->isSuperTypeOf($type)->negate();
}
return TrinaryLogic::createNo();
}
public function equals(Type $type): bool
{
if (!$type instanceof self) {
return false;
}
if ($this->subtractedType === null) {
if ($type->subtractedType === null) {
return true;
}
return false;
}
if ($type->subtractedType === null) {
return false;
}
return $this->subtractedType->equals($type->subtractedType);
}
public function describe(VerbosityLevel $level): string
{
return $level->handle(
static fn (): string => 'object',
static fn (): string => 'object',
function () use ($level): string {
$description = 'object';
if ($this->subtractedType !== null) {
$description .= sprintf('~%s', $this->subtractedType->describe($level));
}
return $description;
},
);
}
public function subtract(Type $type): Type
{
if ($type instanceof self) {
return new NeverType();
}
if ($this->subtractedType !== null) {
$type = TypeCombinator::union($this->subtractedType, $type);
}
return new self($type);
}
public function getTypeWithoutSubtractedType(): Type
{
return new self();
}
public function changeSubtractedType(?Type $subtractedType): Type
{
return new self($subtractedType);
}
public function getSubtractedType(): ?Type
{
return $this->subtractedType;
}
public function traverse(callable $cb): Type
{
$subtractedType = $this->subtractedType !== null ? $cb($this->subtractedType) : null;
if ($subtractedType !== $this->subtractedType) {
return new self($subtractedType);
}
return $this;
}
public function tryRemove(Type $typeToRemove): ?Type
{
if ($this->isSuperTypeOf($typeToRemove)->yes()) {
return $this->subtract($typeToRemove);
}
return null;
}
/**
* @param mixed[] $properties
*/
public static function __set_state(array $properties): Type
{
return new self($properties['subtractedType'] ?? null);
}
}