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ObjectType.php
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<?php declare(strict_types = 1);
namespace PHPStan\Type;
use ArrayAccess;
use ArrayObject;
use Closure;
use Countable;
use DateTimeInterface;
use Iterator;
use IteratorAggregate;
use PHPStan\Analyser\OutOfClassScope;
use PHPStan\Broker\ClassNotFoundException;
use PHPStan\Php\PhpVersion;
use PHPStan\PhpDocParser\Ast\Type\IdentifierTypeNode;
use PHPStan\PhpDocParser\Ast\Type\TypeNode;
use PHPStan\Reflection\Callables\CallableParametersAcceptor;
use PHPStan\Reflection\Callables\FunctionCallableVariant;
use PHPStan\Reflection\ClassConstantReflection;
use PHPStan\Reflection\ClassMemberAccessAnswerer;
use PHPStan\Reflection\ClassReflection;
use PHPStan\Reflection\ExtendedMethodReflection;
use PHPStan\Reflection\ExtendedPropertyReflection;
use PHPStan\Reflection\Php\UniversalObjectCratesClassReflectionExtension;
use PHPStan\Reflection\PropertyReflection;
use PHPStan\Reflection\ReflectionProviderStaticAccessor;
use PHPStan\Reflection\TrivialParametersAcceptor;
use PHPStan\Reflection\Type\CalledOnTypeUnresolvedMethodPrototypeReflection;
use PHPStan\Reflection\Type\CalledOnTypeUnresolvedPropertyPrototypeReflection;
use PHPStan\Reflection\Type\UnionTypeUnresolvedPropertyPrototypeReflection;
use PHPStan\Reflection\Type\UnresolvedMethodPrototypeReflection;
use PHPStan\Reflection\Type\UnresolvedPropertyPrototypeReflection;
use PHPStan\ShouldNotHappenException;
use PHPStan\TrinaryLogic;
use PHPStan\Type\Accessory\AccessoryNonEmptyStringType;
use PHPStan\Type\Accessory\AccessoryNumericStringType;
use PHPStan\Type\Constant\ConstantArrayType;
use PHPStan\Type\Constant\ConstantBooleanType;
use PHPStan\Type\Constant\ConstantStringType;
use PHPStan\Type\Enum\EnumCaseObjectType;
use PHPStan\Type\Generic\GenericObjectType;
use PHPStan\Type\Generic\TemplateTypeHelper;
use PHPStan\Type\Traits\MaybeIterableTypeTrait;
use PHPStan\Type\Traits\NonArrayTypeTrait;
use PHPStan\Type\Traits\NonGeneralizableTypeTrait;
use PHPStan\Type\Traits\NonGenericTypeTrait;
use PHPStan\Type\Traits\UndecidedComparisonTypeTrait;
use Stringable;
use Throwable;
use Traversable;
use function array_key_exists;
use function array_map;
use function array_values;
use function count;
use function implode;
use function in_array;
use function sprintf;
use function strtolower;
/** @api */
class ObjectType implements TypeWithClassName, SubtractableType
{
use MaybeIterableTypeTrait;
use NonArrayTypeTrait;
use NonGenericTypeTrait;
use UndecidedComparisonTypeTrait;
use NonGeneralizableTypeTrait;
private const EXTRA_OFFSET_CLASSES = [
'DOMNamedNodeMap', // Only read and existence
'Dom\NamedNodeMap', // Only read and existence
'DOMNodeList', // Only read and existence
'Dom\NodeList', // Only read and existence
'Dom\HTMLCollection', // Only read and existence
'Dom\DtdNamedNodeMap', // Only read and existence
'PDORow', // Only read and existence
'ResourceBundle', // Only read
'FFI\CData', // Very funky and weird
'SimpleXMLElement',
'Threaded',
];
private ?Type $subtractedType;
/** @var array<string, array<string, IsSuperTypeOfResult>> */
private static array $superTypes = [];
private ?self $cachedParent = null;
/** @var self[]|null */
private ?array $cachedInterfaces = null;
/** @var array<string, array<string, array<string, UnresolvedMethodPrototypeReflection>>> */
private static array $methods = [];
/** @var array<string, array<string, array<string, UnresolvedPropertyPrototypeReflection>>> */
private static array $properties = [];
/** @var array<string, array<string, self|null>> */
private static array $ancestors = [];
/** @var array<string, self|null> */
private array $currentAncestors = [];
private ?string $cachedDescription = null;
/** @var array<string, list<EnumCaseObjectType>> */
private static array $enumCases = [];
/** @api */
public function __construct(
private string $className,
?Type $subtractedType = null,
private ?ClassReflection $classReflection = null,
)
{
if ($subtractedType instanceof NeverType) {
$subtractedType = null;
}
$this->subtractedType = $subtractedType;
}
public static function resetCaches(): void
{
self::$superTypes = [];
self::$methods = [];
self::$properties = [];
self::$ancestors = [];
self::$enumCases = [];
}
private static function createFromReflection(ClassReflection $reflection): self
{
if (!$reflection->isGeneric()) {
return new ObjectType($reflection->getName());
}
return new GenericObjectType(
$reflection->getName(),
$reflection->typeMapToList($reflection->getActiveTemplateTypeMap()),
null,
null,
$reflection->varianceMapToList($reflection->getCallSiteVarianceMap()),
);
}
public function getClassName(): string
{
return $this->className;
}
public function hasProperty(string $propertyName): TrinaryLogic
{
$classReflection = $this->getClassReflection();
if ($classReflection === null) {
return TrinaryLogic::createMaybe();
}
if ($classReflection->hasProperty($propertyName)) {
return TrinaryLogic::createYes();
}
if ($classReflection->allowsDynamicProperties()) {
return TrinaryLogic::createMaybe();
}
if (!$classReflection->isFinal()) {
return TrinaryLogic::createMaybe();
}
return TrinaryLogic::createNo();
}
public function getProperty(string $propertyName, ClassMemberAccessAnswerer $scope): ExtendedPropertyReflection
{
return $this->getUnresolvedPropertyPrototype($propertyName, $scope)->getTransformedProperty();
}
public function getUnresolvedPropertyPrototype(string $propertyName, ClassMemberAccessAnswerer $scope): UnresolvedPropertyPrototypeReflection
{
if (!$scope->isInClass()) {
$canAccessProperty = 'no';
} else {
$canAccessProperty = $scope->getClassReflection()->getName();
}
$description = $this->describeCache();
if (isset(self::$properties[$description][$propertyName][$canAccessProperty])) {
return self::$properties[$description][$propertyName][$canAccessProperty];
}
$nakedClassReflection = $this->getNakedClassReflection();
if ($nakedClassReflection === null) {
throw new ClassNotFoundException($this->className);
}
if ($nakedClassReflection->isEnum()) {
if (
$propertyName === 'name'
|| ($propertyName === 'value' && $nakedClassReflection->isBackedEnum())
) {
$properties = [];
foreach ($this->getEnumCases() as $enumCase) {
$properties[] = $enumCase->getUnresolvedPropertyPrototype($propertyName, $scope);
}
if (count($properties) > 0) {
if (count($properties) === 1) {
return $properties[0];
}
return new UnionTypeUnresolvedPropertyPrototypeReflection($propertyName, $properties);
}
}
}
if (!$nakedClassReflection->hasNativeProperty($propertyName)) {
$nakedClassReflection = $this->getClassReflection();
}
if ($nakedClassReflection === null) {
throw new ClassNotFoundException($this->className);
}
$property = $nakedClassReflection->getProperty($propertyName, $scope);
$ancestor = $this->getAncestorWithClassName($property->getDeclaringClass()->getName());
$resolvedClassReflection = null;
if ($ancestor !== null && $ancestor->hasProperty($propertyName)->yes()) {
$resolvedClassReflection = $ancestor->getClassReflection();
if ($ancestor !== $this) {
$property = $ancestor->getUnresolvedPropertyPrototype($propertyName, $scope)->getNakedProperty();
}
}
if ($resolvedClassReflection === null) {
$resolvedClassReflection = $property->getDeclaringClass();
}
return self::$properties[$description][$propertyName][$canAccessProperty] = new CalledOnTypeUnresolvedPropertyPrototypeReflection(
$property,
$resolvedClassReflection,
true,
$this,
);
}
public function getPropertyWithoutTransformingStatic(string $propertyName, ClassMemberAccessAnswerer $scope): PropertyReflection
{
$classReflection = $this->getNakedClassReflection();
if ($classReflection === null) {
throw new ClassNotFoundException($this->className);
}
if (!$classReflection->hasProperty($propertyName)) {
$classReflection = $this->getClassReflection();
}
if ($classReflection === null) {
throw new ClassNotFoundException($this->className);
}
return $classReflection->getProperty($propertyName, $scope);
}
public function getReferencedClasses(): array
{
return [$this->className];
}
public function getObjectClassNames(): array
{
if ($this->className === '') {
return [];
}
return [$this->className];
}
public function getObjectClassReflections(): array
{
$classReflection = $this->getClassReflection();
if ($classReflection === null) {
return [];
}
return [$classReflection];
}
public function accepts(Type $type, bool $strictTypes): AcceptsResult
{
if ($type instanceof StaticType) {
return $this->checkSubclassAcceptability($type->getClassName());
}
if ($type instanceof CompoundType) {
return $type->isAcceptedBy($this, $strictTypes);
}
if ($type instanceof ClosureType) {
return new AcceptsResult($this->isInstanceOf(Closure::class), []);
}
if ($type instanceof ObjectWithoutClassType) {
return AcceptsResult::createMaybe();
}
$thatClassNames = $type->getObjectClassNames();
if (count($thatClassNames) > 1) {
throw new ShouldNotHappenException();
}
if ($thatClassNames === []) {
return AcceptsResult::createNo();
}
return $this->checkSubclassAcceptability($thatClassNames[0]);
}
public function isSuperTypeOf(Type $type): IsSuperTypeOfResult
{
$thatClassNames = $type->getObjectClassNames();
if (!$type instanceof CompoundType && $thatClassNames === [] && !$type instanceof ObjectWithoutClassType) {
return IsSuperTypeOfResult::createNo();
}
$thisDescription = $this->describeCache();
if ($type instanceof self) {
$description = $type->describeCache();
} else {
$description = $type->describe(VerbosityLevel::cache());
}
if (isset(self::$superTypes[$thisDescription][$description])) {
return self::$superTypes[$thisDescription][$description];
}
if ($type instanceof CompoundType) {
return self::$superTypes[$thisDescription][$description] = $type->isSubTypeOf($this);
}
if ($type instanceof ClosureType) {
return self::$superTypes[$thisDescription][$description] = new IsSuperTypeOfResult($this->isInstanceOf(Closure::class), []);
}
if ($type instanceof ObjectWithoutClassType) {
if ($type->getSubtractedType() !== null) {
$isSuperType = $type->getSubtractedType()->isSuperTypeOf($this);
if ($isSuperType->yes()) {
return self::$superTypes[$thisDescription][$description] = IsSuperTypeOfResult::createNo();
}
}
return self::$superTypes[$thisDescription][$description] = IsSuperTypeOfResult::createMaybe();
}
$transformResult = static fn (IsSuperTypeOfResult $result) => $result;
if ($this->subtractedType !== null) {
$isSuperType = $this->subtractedType->isSuperTypeOf($type);
if ($isSuperType->yes()) {
return self::$superTypes[$thisDescription][$description] = IsSuperTypeOfResult::createNo();
}
if ($isSuperType->maybe()) {
$transformResult = static fn (IsSuperTypeOfResult $result) => $result->and(IsSuperTypeOfResult::createMaybe());
}
}
if (
$type instanceof SubtractableType
&& $type->getSubtractedType() !== null
) {
$isSuperType = $type->getSubtractedType()->isSuperTypeOf($this);
if ($isSuperType->yes()) {
return self::$superTypes[$thisDescription][$description] = IsSuperTypeOfResult::createNo();
}
}
$thisClassName = $this->className;
if (count($thatClassNames) > 1) {
throw new ShouldNotHappenException();
}
$thisClassReflection = $this->getClassReflection();
$thatClassReflections = $type->getObjectClassReflections();
if (count($thatClassReflections) === 1) {
$thatClassReflection = $thatClassReflections[0];
} else {
$thatClassReflection = null;
}
if ($thisClassReflection === null || $thatClassReflection === null) {
if ($thatClassNames[0] === $thisClassName) {
return self::$superTypes[$thisDescription][$description] = $transformResult(IsSuperTypeOfResult::createYes());
}
return self::$superTypes[$thisDescription][$description] = IsSuperTypeOfResult::createMaybe();
}
if ($thatClassNames[0] === $thisClassName) {
if ($thisClassReflection->getNativeReflection()->isFinal()) {
return self::$superTypes[$thisDescription][$description] = $transformResult(IsSuperTypeOfResult::createYes());
}
if ($thisClassReflection->hasFinalByKeywordOverride()) {
if (!$thatClassReflection->hasFinalByKeywordOverride()) {
return self::$superTypes[$thisDescription][$description] = $transformResult(IsSuperTypeOfResult::createMaybe());
}
}
return self::$superTypes[$thisDescription][$description] = $transformResult(IsSuperTypeOfResult::createYes());
}
if ($thisClassReflection->isTrait() || $thatClassReflection->isTrait()) {
return self::$superTypes[$thisDescription][$description] = IsSuperTypeOfResult::createNo();
}
if ($thisClassReflection->getName() === $thatClassReflection->getName()) {
return self::$superTypes[$thisDescription][$description] = $transformResult(IsSuperTypeOfResult::createYes());
}
if ($thatClassReflection->isSubclassOfClass($thisClassReflection)) {
return self::$superTypes[$thisDescription][$description] = $transformResult(IsSuperTypeOfResult::createYes());
}
if ($thisClassReflection->isSubclassOfClass($thatClassReflection)) {
return self::$superTypes[$thisDescription][$description] = IsSuperTypeOfResult::createMaybe();
}
if ($thisClassReflection->isInterface() && !$thatClassReflection->isFinalByKeyword()) {
return self::$superTypes[$thisDescription][$description] = IsSuperTypeOfResult::createMaybe();
}
if ($thatClassReflection->isInterface() && !$thisClassReflection->isFinalByKeyword()) {
return self::$superTypes[$thisDescription][$description] = IsSuperTypeOfResult::createMaybe();
}
return self::$superTypes[$thisDescription][$description] = IsSuperTypeOfResult::createNo();
}
public function equals(Type $type): bool
{
if (!$type instanceof self) {
return false;
}
if ($type instanceof EnumCaseObjectType) {
return false;
}
if ($this->className !== $type->className) {
return false;
}
if ($this->subtractedType === null) {
return $type->subtractedType === null;
}
if ($type->subtractedType === null) {
return false;
}
return $this->subtractedType->equals($type->subtractedType);
}
private function checkSubclassAcceptability(string $thatClass): AcceptsResult
{
if ($this->className === $thatClass) {
return AcceptsResult::createYes();
}
$reflectionProvider = ReflectionProviderStaticAccessor::getInstance();
if ($this->getClassReflection() === null || !$reflectionProvider->hasClass($thatClass)) {
return AcceptsResult::createNo();
}
$thisReflection = $this->getClassReflection();
$thatReflection = $reflectionProvider->getClass($thatClass);
if ($thisReflection->getName() === $thatReflection->getName()) {
// class alias
return AcceptsResult::createYes();
}
if ($thisReflection->isInterface() && $thatReflection->isInterface()) {
return AcceptsResult::createFromBoolean(
$thatReflection->implementsInterface($thisReflection->getName()),
);
}
return AcceptsResult::createFromBoolean(
$thatReflection->isSubclassOfClass($thisReflection),
);
}
public function describe(VerbosityLevel $level): string
{
$preciseNameCallback = function (): string {
$reflectionProvider = ReflectionProviderStaticAccessor::getInstance();
if (!$reflectionProvider->hasClass($this->className)) {
return $this->className;
}
return $reflectionProvider->getClassName($this->className);
};
$preciseWithSubtracted = function () use ($level): string {
$description = $this->className;
if ($this->subtractedType !== null) {
$description .= $this->subtractedType instanceof UnionType
? sprintf('~(%s)', $this->subtractedType->describe($level))
: sprintf('~%s', $this->subtractedType->describe($level));
}
return $description;
};
return $level->handle(
$preciseNameCallback,
$preciseNameCallback,
$preciseWithSubtracted,
function () use ($preciseWithSubtracted): string {
$reflection = $this->classReflection;
$line = '';
if ($reflection !== null) {
$line .= '-';
$line .= (string) $reflection->getNativeReflection()->getStartLine();
$line .= '-';
}
return $preciseWithSubtracted() . '-' . static::class . '-' . $line . $this->describeAdditionalCacheKey();
},
);
}
protected function describeAdditionalCacheKey(): string
{
return '';
}
private function describeCache(): string
{
if ($this->cachedDescription !== null) {
return $this->cachedDescription;
}
if (static::class !== self::class) {
return $this->cachedDescription = $this->describe(VerbosityLevel::cache());
}
$description = $this->className;
if ($this instanceof GenericObjectType) {
$description .= '<';
$typeDescriptions = [];
foreach ($this->getTypes() as $type) {
$typeDescriptions[] = $type->describe(VerbosityLevel::cache());
}
$description .= '<' . implode(', ', $typeDescriptions) . '>';
}
if ($this->subtractedType !== null) {
$description .= $this->subtractedType instanceof UnionType
? sprintf('~(%s)', $this->subtractedType->describe(VerbosityLevel::cache()))
: sprintf('~%s', $this->subtractedType->describe(VerbosityLevel::cache()));
}
$reflection = $this->classReflection;
if ($reflection !== null) {
$description .= '-';
$description .= (string) $reflection->getNativeReflection()->getStartLine();
$description .= '-';
if ($reflection->hasFinalByKeywordOverride()) {
$description .= 'f=' . ($reflection->isFinalByKeyword() ? 't' : 'f');
}
}
return $this->cachedDescription = $description;
}
public function toNumber(): Type
{
if ($this->isInstanceOf('SimpleXMLElement')->yes()) {
return new UnionType([
new FloatType(),
new IntegerType(),
]);
}
return new ErrorType();
}
public function toAbsoluteNumber(): Type
{
return $this->toNumber()->toAbsoluteNumber();
}
public function toInteger(): Type
{
if ($this->isInstanceOf('SimpleXMLElement')->yes()) {
return new IntegerType();
}
if (in_array($this->getClassName(), ['CurlHandle', 'CurlMultiHandle'], true)) {
return new IntegerType();
}
return new ErrorType();
}
public function toFloat(): Type
{
if ($this->isInstanceOf('SimpleXMLElement')->yes()) {
return new FloatType();
}
return new ErrorType();
}
public function toString(): Type
{
if ($this->isInstanceOf('BcMath\Number')->yes()) {
return new IntersectionType([
new StringType(),
new AccessoryNumericStringType(),
new AccessoryNonEmptyStringType(),
]);
}
$classReflection = $this->getClassReflection();
if ($classReflection === null) {
return new ErrorType();
}
if ($classReflection->hasNativeMethod('__toString')) {
return $this->getMethod('__toString', new OutOfClassScope())->getOnlyVariant()->getReturnType();
}
return new ErrorType();
}
public function toArray(): Type
{
$classReflection = $this->getClassReflection();
if ($classReflection === null) {
return new ArrayType(new MixedType(), new MixedType());
}
$reflectionProvider = ReflectionProviderStaticAccessor::getInstance();
if (
!$classReflection->getNativeReflection()->isUserDefined()
|| $classReflection->is(ArrayObject::class)
|| UniversalObjectCratesClassReflectionExtension::isUniversalObjectCrate(
$reflectionProvider,
$classReflection,
)
) {
return new ArrayType(new MixedType(), new MixedType());
}
$arrayKeys = [];
$arrayValues = [];
$isFinal = $classReflection->isFinal();
do {
foreach ($classReflection->getNativeReflection()->getProperties() as $nativeProperty) {
if ($nativeProperty->isStatic()) {
continue;
}
$declaringClass = $reflectionProvider->getClass($nativeProperty->getDeclaringClass()->getName());
$property = $declaringClass->getNativeProperty($nativeProperty->getName());
$keyName = $nativeProperty->getName();
if ($nativeProperty->isPrivate()) {
$keyName = sprintf(
"\0%s\0%s",
$declaringClass->getName(),
$keyName,
);
} elseif ($nativeProperty->isProtected()) {
$keyName = sprintf(
"\0*\0%s",
$keyName,
);
}
$arrayKeys[] = new ConstantStringType($keyName);
$arrayValues[] = $property->getReadableType();
}
$classReflection = $classReflection->getParentClass();
} while ($classReflection !== null);
if (!$isFinal && count($arrayKeys) === 0) {
return new ArrayType(new MixedType(), new MixedType());
}
return new ConstantArrayType($arrayKeys, $arrayValues);
}
public function toArrayKey(): Type
{
return $this->toString();
}
public function toCoercedArgumentType(bool $strictTypes): Type
{
return $this;
}
public function toBoolean(): BooleanType
{
if (
$this->isInstanceOf('SimpleXMLElement')->yes()
|| $this->isInstanceOf('BcMath\Number')->yes()
) {
return new BooleanType();
}
return new ConstantBooleanType(true);
}
public function isObject(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function isEnum(): TrinaryLogic
{
$classReflection = $this->getClassReflection();
if ($classReflection === null) {
return TrinaryLogic::createMaybe();
}
if (
$classReflection->isEnum()
|| $classReflection->is('UnitEnum')
) {
return TrinaryLogic::createYes();
}
if (
$classReflection->isInterface()
&& !$classReflection->is(Stringable::class) // enums cannot have __toString
&& !$classReflection->is(Throwable::class) // enums cannot extend Exception/Error
&& !$classReflection->is(DateTimeInterface::class) // userland classes cannot extend DateTimeInterface
) {
return TrinaryLogic::createMaybe();
}
return TrinaryLogic::createNo();
}
public function canAccessProperties(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function canCallMethods(): TrinaryLogic
{
if (strtolower($this->className) === 'stdclass') {
return TrinaryLogic::createNo();
}
return TrinaryLogic::createYes();
}
public function hasMethod(string $methodName): TrinaryLogic
{
$classReflection = $this->getClassReflection();
if ($classReflection === null) {
return TrinaryLogic::createMaybe();
}
if ($classReflection->hasMethod($methodName)) {
return TrinaryLogic::createYes();
}
if ($classReflection->isFinal()) {
return TrinaryLogic::createNo();
}
return TrinaryLogic::createMaybe();
}
public function getMethod(string $methodName, ClassMemberAccessAnswerer $scope): ExtendedMethodReflection
{
return $this->getUnresolvedMethodPrototype($methodName, $scope)->getTransformedMethod();
}
public function getUnresolvedMethodPrototype(string $methodName, ClassMemberAccessAnswerer $scope): UnresolvedMethodPrototypeReflection
{
if (!$scope->isInClass()) {
$canCallMethod = 'no';
} else {
$canCallMethod = $scope->getClassReflection()->getName();
}
$description = $this->describeCache();
if (isset(self::$methods[$description][$methodName][$canCallMethod])) {
return self::$methods[$description][$methodName][$canCallMethod];
}
$nakedClassReflection = $this->getNakedClassReflection();
if ($nakedClassReflection === null) {
throw new ClassNotFoundException($this->className);
}
if (!$nakedClassReflection->hasNativeMethod($methodName)) {
$nakedClassReflection = $this->getClassReflection();
}
if ($nakedClassReflection === null) {
throw new ClassNotFoundException($this->className);
}
$method = $nakedClassReflection->getMethod($methodName, $scope);
$ancestor = $this->getAncestorWithClassName($method->getDeclaringClass()->getName());
$resolvedClassReflection = null;
if ($ancestor !== null) {
$resolvedClassReflection = $ancestor->getClassReflection();
if ($ancestor !== $this) {
$method = $ancestor->getUnresolvedMethodPrototype($methodName, $scope)->getNakedMethod();
}
}
if ($resolvedClassReflection === null) {
$resolvedClassReflection = $method->getDeclaringClass();
}
return self::$methods[$description][$methodName][$canCallMethod] = new CalledOnTypeUnresolvedMethodPrototypeReflection(
$method,
$resolvedClassReflection,
true,
$this,
);
}
public function canAccessConstants(): TrinaryLogic
{
return TrinaryLogic::createYes();
}
public function hasConstant(string $constantName): TrinaryLogic
{
$class = $this->getClassReflection();
if ($class === null) {
return TrinaryLogic::createNo();
}
return TrinaryLogic::createFromBoolean(
$class->hasConstant($constantName),
);
}
public function getConstant(string $constantName): ClassConstantReflection
{
$class = $this->getClassReflection();
if ($class === null) {
throw new ClassNotFoundException($this->className);
}
return $class->getConstant($constantName);
}
public function getTemplateType(string $ancestorClassName, string $templateTypeName): Type
{
$classReflection = $this->getClassReflection();
if ($classReflection === null) {
return new ErrorType();
}
$ancestorClassReflection = $classReflection->getAncestorWithClassName($ancestorClassName);
if ($ancestorClassReflection === null) {
return new ErrorType();
}
$activeTemplateTypeMap = $ancestorClassReflection->getPossiblyIncompleteActiveTemplateTypeMap();
$type = $activeTemplateTypeMap->getType($templateTypeName);
if ($type === null) {
return new ErrorType();
}
if ($type instanceof ErrorType) {
$templateTypeMap = $ancestorClassReflection->getTemplateTypeMap();
$templateType = $templateTypeMap->getType($templateTypeName);
if ($templateType === null) {
return $type;
}
$bound = TemplateTypeHelper::resolveToBounds($templateType);
if ($bound instanceof MixedType && $bound->isExplicitMixed()) {
return new MixedType(false);
}
return TemplateTypeHelper::resolveToDefaults($templateType);
}
return $type;
}
public function getConstantStrings(): array
{
return [];
}
public function isIterable(): TrinaryLogic
{
return $this->isInstanceOf(Traversable::class);
}
public function isIterableAtLeastOnce(): TrinaryLogic
{
return $this->isInstanceOf(Traversable::class)
->and(TrinaryLogic::createMaybe());
}
public function getArraySize(): Type
{
if ($this->isInstanceOf(Countable::class)->no()) {
return new ErrorType();
}
return IntegerRangeType::fromInterval(0, null);
}
public function getIterableKeyType(): Type
{
$isTraversable = false;
if ($this->isInstanceOf(IteratorAggregate::class)->yes()) {
$keyType = RecursionGuard::run($this, fn (): Type => $this->getMethod('getIterator', new OutOfClassScope())->getOnlyVariant()->getReturnType()->getIterableKeyType());
$isTraversable = true;
if (!$keyType instanceof MixedType || $keyType->isExplicitMixed()) {
return $keyType;
}
}
$extraOffsetAccessible = $this->isExtraOffsetAccessibleClass()->yes();
if (!$extraOffsetAccessible && $this->isInstanceOf(Traversable::class)->yes()) {
$isTraversable = true;
$tKey = $this->getTemplateType(Traversable::class, 'TKey');
if (!$tKey instanceof ErrorType) {
if (!$tKey instanceof MixedType || $tKey->isExplicitMixed()) {
return $tKey;
}
}
}
if ($this->isInstanceOf(Iterator::class)->yes()) {
return RecursionGuard::run($this, fn (): Type => $this->getMethod('key', new OutOfClassScope())->getOnlyVariant()->getReturnType());
}
if ($extraOffsetAccessible) {
return new MixedType(true);
}
if ($isTraversable) {
return new MixedType();
}
return new ErrorType();
}
public function getFirstIterableKeyType(): Type
{
return $this->getIterableKeyType();
}
public function getLastIterableKeyType(): Type
{
return $this->getIterableKeyType();
}
public function getIterableValueType(): Type
{
$isTraversable = false;
if ($this->isInstanceOf(IteratorAggregate::class)->yes()) {
$valueType = RecursionGuard::run($this, fn (): Type => $this->getMethod('getIterator', new OutOfClassScope())->getOnlyVariant()->getReturnType()->getIterableValueType());
$isTraversable = true;
if (!$valueType instanceof MixedType || $valueType->isExplicitMixed()) {
return $valueType;
}
}
$extraOffsetAccessible = $this->isExtraOffsetAccessibleClass()->yes();
if (!$extraOffsetAccessible && $this->isInstanceOf(Traversable::class)->yes()) {
$isTraversable = true;
$tValue = $this->getTemplateType(Traversable::class, 'TValue');
if (!$tValue instanceof ErrorType) {
if (!$tValue instanceof MixedType || $tValue->isExplicitMixed()) {
return $tValue;
}
}
}
if ($this->isInstanceOf(Iterator::class)->yes()) {
return RecursionGuard::run($this, fn (): Type => $this->getMethod('current', new OutOfClassScope())->getOnlyVariant()->getReturnType());
}
if ($extraOffsetAccessible) {
return new MixedType(true);