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NeverType.php
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NeverType.php
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<?php declare(strict_types = 1);
namespace PHPStan\Type;
use PHPStan\Reflection\ClassMemberAccessAnswerer;
use PHPStan\Reflection\ConstantReflection;
use PHPStan\Reflection\MethodReflection;
use PHPStan\Reflection\ParametersAcceptor;
use PHPStan\Reflection\PropertyReflection;
use PHPStan\Reflection\TrivialParametersAcceptor;
use PHPStan\Reflection\Type\UnresolvedMethodPrototypeReflection;
use PHPStan\Reflection\Type\UnresolvedPropertyPrototypeReflection;
use PHPStan\ShouldNotHappenException;
use PHPStan\TrinaryLogic;
use PHPStan\Type\Traits\NonGeneralizableTypeTrait;
use PHPStan\Type\Traits\NonGenericTypeTrait;
use PHPStan\Type\Traits\NonRemoveableTypeTrait;
use PHPStan\Type\Traits\UndecidedBooleanTypeTrait;
use PHPStan\Type\Traits\UndecidedComparisonCompoundTypeTrait;
/** @api */
class NeverType implements CompoundType
{
use UndecidedBooleanTypeTrait;
use NonGenericTypeTrait;
use UndecidedComparisonCompoundTypeTrait;
use NonRemoveableTypeTrait;
use NonGeneralizableTypeTrait;
/** @api */
public function __construct(private bool $isExplicit = false)
{
}
public function isExplicit(): bool
{
return $this->isExplicit;
}
/**
* @return string[]
*/
public function getReferencedClasses(): array
{
return [];
}
public function accepts(Type $type, bool $strictTypes): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function isSuperTypeOf(Type $type): TrinaryLogic
{
if ($type instanceof self) {
return TrinaryLogic::createYes();
}
return TrinaryLogic::createNo();
}
public function equals(Type $type): bool
{
return $type instanceof self;
}
public function isSubTypeOf(Type $otherType): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function isAcceptedBy(Type $acceptingType, bool $strictTypes): TrinaryLogic
{
return $this->isSubTypeOf($acceptingType);
}
public function describe(VerbosityLevel $level): string
{
return '*NEVER*';
}
public function canAccessProperties(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function hasProperty(string $propertyName): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function getProperty(string $propertyName, ClassMemberAccessAnswerer $scope): PropertyReflection
{
throw new ShouldNotHappenException();
}
public function getUnresolvedPropertyPrototype(string $propertyName, ClassMemberAccessAnswerer $scope): UnresolvedPropertyPrototypeReflection
{
throw new ShouldNotHappenException();
}
public function canCallMethods(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function hasMethod(string $methodName): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function getMethod(string $methodName, ClassMemberAccessAnswerer $scope): MethodReflection
{
throw new ShouldNotHappenException();
}
public function getUnresolvedMethodPrototype(string $methodName, ClassMemberAccessAnswerer $scope): UnresolvedMethodPrototypeReflection
{
throw new ShouldNotHappenException();
}
public function canAccessConstants(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function hasConstant(string $constantName): TrinaryLogic
{
return TrinaryLogic::createNo();
}
public function getConstant(string $constantName): ConstantReflection
{
throw new ShouldNotHappenException();
}
public function isIterable(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function isIterableAtLeastOnce(): TrinaryLogic
{
return TrinaryLogic::createMaybe();
}
public function getIterableKeyType(): Type
{
return new NeverType();
}
public function getIterableValueType(): Type
{
return new NeverType();
}
public function isOffsetAccessible(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function hasOffsetValueType(Type $offsetType): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function getOffsetValueType(Type $offsetType): Type
{
return new NeverType();
}
public function setOffsetValueType(?Type $offsetType, Type $valueType, bool $unionValues = true): Type
{
return new NeverType();
}
public function unsetOffset(Type $offsetType): Type
{
return new NeverType();
}
public function isCallable(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
/**
* @return ParametersAcceptor[]
*/
public function getCallableParametersAcceptors(ClassMemberAccessAnswerer $scope): array
{
return [new TrivialParametersAcceptor()];
}
public function isCloneable(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function toNumber(): Type
{
return $this;
}
public function toString(): Type
{
return $this;
}
public function toInteger(): Type
{
return $this;
}
public function toFloat(): Type
{
return $this;
}
public function toArray(): Type
{
return $this;
}
public function traverse(callable $cb): Type
{
return $this;
}
public function isArray(): 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 isLiteralString(): TrinaryLogic
{
return TrinaryLogic::createNo();
}
/**
* @param mixed[] $properties
*/
public static function __set_state(array $properties): Type
{
return new self($properties['isExplicit']);
}
}