/
VoidType.php
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/
VoidType.php
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<?php declare(strict_types = 1);
namespace PHPStan\Type;
use PHPStan\TrinaryLogic;
use PHPStan\Type\Traits\FalseyBooleanTypeTrait;
use PHPStan\Type\Traits\NonArrayTypeTrait;
use PHPStan\Type\Traits\NonCallableTypeTrait;
use PHPStan\Type\Traits\NonGeneralizableTypeTrait;
use PHPStan\Type\Traits\NonGenericTypeTrait;
use PHPStan\Type\Traits\NonIterableTypeTrait;
use PHPStan\Type\Traits\NonObjectTypeTrait;
use PHPStan\Type\Traits\NonOffsetAccessibleTypeTrait;
use PHPStan\Type\Traits\NonRemoveableTypeTrait;
use PHPStan\Type\Traits\UndecidedComparisonTypeTrait;
/** @api */
class VoidType implements Type
{
use NonArrayTypeTrait;
use NonCallableTypeTrait;
use NonIterableTypeTrait;
use NonObjectTypeTrait;
use NonOffsetAccessibleTypeTrait;
use FalseyBooleanTypeTrait;
use NonGenericTypeTrait;
use UndecidedComparisonTypeTrait;
use NonRemoveableTypeTrait;
use NonGeneralizableTypeTrait;
/** @api */
public function __construct()
{
}
/**
* @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);
}
public function isSuperTypeOf(Type $type): TrinaryLogic
{
if ($type instanceof self) {
return TrinaryLogic::createYes();
}
if ($type instanceof CompoundType) {
return $type->isSubTypeOf($this);
}
return TrinaryLogic::createNo();
}
public function equals(Type $type): bool
{
return $type instanceof self;
}
public function describe(VerbosityLevel $level): string
{
return 'void';
}
public function toNumber(): Type
{
return new ErrorType();
}
public function toString(): Type
{
return new ErrorType();
}
public function toInteger(): Type
{
return new ErrorType();
}
public function toFloat(): Type
{
return new ErrorType();
}
public function toArray(): Type
{
return new ErrorType();
}
public function toArrayKey(): Type
{
return new ErrorType();
}
public function isNull(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isTrue(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isFalse(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isBoolean(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isFloat(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isInteger(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isString(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isNumericString(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isNonEmptyString(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isNonFalsyString(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isLiteralString(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isClassStringType(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function isVoid(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function isScalar(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function traverse(callable $cb): Type
{
return $this;
}
/**
* @param mixed[] $properties
*/
public static function __set_state(array $properties): Type
{
return new self();
}
}