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<?php
declare(strict_types=1);
namespace Roave\BetterReflection\Reflection;
use InvalidArgumentException;
use OutOfBoundsException;
use PhpParser\Node;
use PhpParser\Node\Stmt\Class_ as ClassNode;
use PhpParser\Node\Stmt\ClassConst as ConstNode;
use PhpParser\Node\Stmt\ClassLike as ClassLikeNode;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\Node\Stmt\Interface_ as InterfaceNode;
use PhpParser\Node\Stmt\Namespace_ as NamespaceNode;
use PhpParser\Node\Stmt\Namespace_;
use PhpParser\Node\Stmt\Property as PropertyNode;
use PhpParser\Node\Stmt\Trait_ as TraitNode;
use PhpParser\Node\Stmt\TraitUse;
use ReflectionClass as CoreReflectionClass;
use ReflectionException;
use ReflectionProperty as CoreReflectionProperty;
use Roave\BetterReflection\BetterReflection;
use Roave\BetterReflection\Reflection\Exception\ClassDoesNotExist;
use Roave\BetterReflection\Reflection\Exception\NoObjectProvided;
use Roave\BetterReflection\Reflection\Exception\NotAClassReflection;
use Roave\BetterReflection\Reflection\Exception\NotAnInterfaceReflection;
use Roave\BetterReflection\Reflection\Exception\NotAnObject;
use Roave\BetterReflection\Reflection\Exception\ObjectNotInstanceOfClass;
use Roave\BetterReflection\Reflection\Exception\PropertyDoesNotExist;
use Roave\BetterReflection\Reflection\Exception\Uncloneable;
use Roave\BetterReflection\Reflection\StringCast\ReflectionClassStringCast;
use Roave\BetterReflection\Reflector\Exception\IdentifierNotFound;
use Roave\BetterReflection\Reflector\Reflector;
use Roave\BetterReflection\SourceLocator\Located\LocatedSource;
use Roave\BetterReflection\Util\CalculateReflectionColum;
use Roave\BetterReflection\Util\GetFirstDocComment;
use Traversable;
use function array_combine;
use function array_filter;
use function array_key_exists;
use function array_map;
use function array_merge;
use function array_reverse;
use function array_slice;
use function array_values;
use function assert;
use function implode;
use function in_array;
use function is_object;
use function ltrim;
use function sha1;
use function sprintf;
use function strtolower;
class ReflectionClass implements Reflection
{
public const ANONYMOUS_CLASS_NAME_PREFIX = 'class@anonymous';
/** @var Reflector */
private $reflector;
/** @var NamespaceNode|null */
private $declaringNamespace;
/** @var LocatedSource */
private $locatedSource;
/** @var ClassLikeNode */
private $node;
/** @var array<string, ReflectionClassConstant>|null indexed by name, when present */
private $cachedReflectionConstants;
/** @var array<string, ReflectionProperty>|null */
private $cachedImmediateProperties;
/** @var array<string, ReflectionProperty>|null */
private $cachedProperties;
/** @var array<lowercase-string, ReflectionMethod>|null */
private $cachedMethods;
/** @var array<string, string>|null */
private $cachedTraitAliases;
/** @var array<string, string>|null */
private $cachedTraitPrecedences;
private function __construct()
{
}
public function __toString() : string
{
return ReflectionClassStringCast::toString($this);
}
/**
* Create a ReflectionClass by name, using default reflectors etc.
*
* @throws IdentifierNotFound
*/
public static function createFromName(string $className) : self
{
return (new BetterReflection())->classReflector()->reflect($className);
}
/**
* Create a ReflectionClass from an instance, using default reflectors etc.
*
* This is simply a helper method that calls ReflectionObject::createFromInstance().
*
* @see ReflectionObject::createFromInstance
*
* @param object $instance
*
* @throws IdentifierNotFound
* @throws ReflectionException
* @throws InvalidArgumentException
*
* @psalm-suppress DocblockTypeContradiction
*/
public static function createFromInstance($instance) : self
{
if (! is_object($instance)) {
throw new InvalidArgumentException('Instance must be an instance of an object');
}
return ReflectionObject::createFromInstance($instance);
}
/**
* Create from a Class Node.
*
* @internal
*
* @param ClassLikeNode $node Node has to be processed by the PhpParser\NodeVisitor\NameResolver
* @param NamespaceNode|null $namespace optional - if omitted, we assume it is global namespaced class
*/
public static function createFromNode(
Reflector $reflector,
ClassLikeNode $node,
LocatedSource $locatedSource,
?NamespaceNode $namespace = null
) : self {
$class = new self();
$class->reflector = $reflector;
$class->locatedSource = $locatedSource;
$class->node = $node;
if ($namespace !== null) {
$class->declaringNamespace = $namespace;
}
return $class;
}
/**
* Get the "short" name of the class (e.g. for A\B\Foo, this will return
* "Foo").
*/
public function getShortName() : string
{
if (! $this->isAnonymous()) {
assert($this->node->name instanceof Node\Identifier);
return $this->node->name->name;
}
$fileName = $this->getFileName();
if ($fileName === null) {
$fileName = sha1($this->locatedSource->getSource());
}
return sprintf('%s%c%s(%d)', self::ANONYMOUS_CLASS_NAME_PREFIX, "\0", $fileName, $this->getStartLine());
}
/**
* Get the "full" name of the class (e.g. for A\B\Foo, this will return
* "A\B\Foo").
*
* @return class-string
*/
public function getName() : string
{
if (! $this->inNamespace()) {
return $this->getShortName();
}
return $this->node->namespacedName->toString();
}
/**
* Get the "namespace" name of the class (e.g. for A\B\Foo, this will
* return "A\B").
*
* @psalm-suppress PossiblyNullPropertyFetch
*/
public function getNamespaceName() : string
{
if (! $this->inNamespace()) {
return '';
}
return implode('\\', $this->declaringNamespace->name->parts);
}
/**
* Decide if this class is part of a namespace. Returns false if the class
* is in the global namespace or does not have a specified namespace.
*/
public function inNamespace() : bool
{
return $this->declaringNamespace !== null
&& $this->declaringNamespace->name !== null;
}
public function getExtensionName() : ?string
{
return $this->locatedSource->getExtensionName();
}
/**
* Construct a flat list of all methods from current class, traits,
* parent classes and interfaces in this precise order.
*
* @return ReflectionMethod[]
*/
private function getAllMethods() : array
{
return array_merge(
[],
array_map(
function (ClassMethod $methodNode) : ReflectionMethod {
return ReflectionMethod::createFromNode(
$this->reflector,
$methodNode,
$this->declaringNamespace,
$this,
$this
);
},
$this->node->getMethods()
),
...array_map(
function (ReflectionClass $trait) : array {
return array_merge(
[],
...array_map(
function (ReflectionMethod $method) : array {
return $this->createMethodsFromTrait($method);
},
$trait->getMethods()
)
);
},
$this->getTraits()
),
...array_map(
static function (ReflectionClass $ancestor) : array {
return $ancestor->getMethods();
},
array_values(array_merge(
array_filter([$this->getParentClass()]),
$this->getInterfaces()
))
)
);
}
/**
* @return ReflectionMethod[]
*/
private function createMethodsFromTrait(ReflectionMethod $method) : array
{
$traitAliases = $this->getTraitAliases();
$traitPrecedences = $this->getTraitPrecedences();
$methodAst = $method->getAst();
assert($methodAst instanceof ClassMethod);
$methodHash = $this->methodHash($method->getDeclaringClass()->getName(), $method->getName());
$aliases = [];
foreach ($traitAliases as $aliasMethodName => $traitAliasDefinition) {
if ($methodHash !== $traitAliasDefinition) {
continue;
}
$aliases[] = ReflectionMethod::createFromNode(
$this->reflector,
$methodAst,
$method->getDeclaringClass()->getDeclaringNamespaceAst(),
$method->getDeclaringClass(),
$this,
$aliasMethodName
);
}
if ($aliases !== []) {
return $aliases;
}
if (array_key_exists($methodHash, $traitPrecedences)) {
return [];
}
$newMethod = ReflectionMethod::createFromNode(
$this->reflector,
$methodAst,
$method->getDeclaringClass()->getDeclaringNamespaceAst(),
$method->getDeclaringClass(),
$this,
$method->getAliasName()
);
return [$newMethod];
}
/**
* Construct a flat list of methods that are available. This will search up
* all parent classes/traits/interfaces/current scope for methods.
*
* Methods are not merged via their name as array index, since internal PHP method
* sorting does not follow `\array_merge()` semantics.
*
* @return array<lowercase-string, ReflectionMethod> indexed by method name
*/
private function getMethodsIndexedByName() : array
{
if ($this->cachedMethods !== null) {
return $this->cachedMethods;
}
$cachedMethods = [];
foreach ($this->getAllMethods() as $method) {
$methodName = strtolower($method->getName());
if (isset($cachedMethods[$methodName])) {
continue;
}
$cachedMethods[$methodName] = $method;
}
$this->cachedMethods = $cachedMethods;
return $this->cachedMethods;
}
/**
* Fetch an array of all methods for this class.
*
* Filter the results to include only methods with certain attributes. Defaults
* to no filtering.
* Any combination of \ReflectionMethod::IS_STATIC,
* \ReflectionMethod::IS_PUBLIC,
* \ReflectionMethod::IS_PROTECTED,
* \ReflectionMethod::IS_PRIVATE,
* \ReflectionMethod::IS_ABSTRACT,
* \ReflectionMethod::IS_FINAL.
* For example if $filter = \ReflectionMethod::IS_PUBLIC | \ReflectionMethod::IS_FINAL
* the only the final public methods will be returned
*
* @return list<ReflectionMethod>
*/
public function getMethods(?int $filter = null) : array
{
if ($filter === null) {
return array_values($this->getMethodsIndexedByName());
}
return array_values(
array_filter(
$this->getMethodsIndexedByName(),
static function (ReflectionMethod $method) use ($filter) : bool {
return (bool) ($filter & $method->getModifiers());
}
)
);
}
/**
* Get only the methods that this class implements (i.e. do not search
* up parent classes etc.)
*
* @see ReflectionClass::getMethods for the usage of $filter
*
* @return ReflectionMethod[]
*/
public function getImmediateMethods(?int $filter = null) : array
{
/** @var ReflectionMethod[] $methods */
$methods = array_map(
function (ClassMethod $methodNode) : ReflectionMethod {
return ReflectionMethod::createFromNode(
$this->reflector,
$methodNode,
$this->declaringNamespace,
$this,
$this
);
},
$this->node->getMethods()
);
$methodsByName = [];
foreach ($methods as $method) {
if ($filter !== null && ! ($filter & $method->getModifiers())) {
continue;
}
$methodsByName[$method->getName()] = $method;
}
return $methodsByName;
}
/**
* Get a single method with the name $methodName.
*
* @throws OutOfBoundsException
*/
public function getMethod(string $methodName) : ReflectionMethod
{
$lowercaseMethodName = strtolower($methodName);
$methods = $this->getMethodsIndexedByName();
if (! isset($methods[$lowercaseMethodName])) {
throw new OutOfBoundsException('Could not find method: ' . $methodName);
}
return $methods[$lowercaseMethodName];
}
/**
* Does the class have the specified method method?
*/
public function hasMethod(string $methodName) : bool
{
try {
$this->getMethod($methodName);
return true;
} catch (OutOfBoundsException $exception) {
return false;
}
}
/**
* Get an associative array of only the constants for this specific class (i.e. do not search
* up parent classes etc.), with keys as constant names and values as constant values.
*
* @return array<string, scalar|array<scalar>|null>
*/
public function getImmediateConstants() : array
{
return array_map(static function (ReflectionClassConstant $classConstant) {
return $classConstant->getValue();
}, $this->getImmediateReflectionConstants());
}
/**
* Get an associative array of the defined constants in this class,
* with keys as constant names and values as constant values.
*
* @return array<string, scalar|array<scalar>|null>
*/
public function getConstants() : array
{
return array_map(static function (ReflectionClassConstant $classConstant) {
return $classConstant->getValue();
}, $this->getReflectionConstants());
}
/**
* Get the value of the specified class constant.
*
* Returns null if not specified.
*
* @return scalar|array<scalar>|null
*/
public function getConstant(string $name)
{
$reflectionConstant = $this->getReflectionConstant($name);
if (! $reflectionConstant) {
return null;
}
return $reflectionConstant->getValue();
}
/**
* Does this class have the specified constant?
*/
public function hasConstant(string $name) : bool
{
return $this->getReflectionConstant($name) !== null;
}
/**
* Get the reflection object of the specified class constant.
*
* Returns null if not specified.
*/
public function getReflectionConstant(string $name) : ?ReflectionClassConstant
{
return $this->getReflectionConstants()[$name] ?? null;
}
/**
* Get an associative array of only the constants for this specific class (i.e. do not search
* up parent classes etc.), with keys as constant names and values as {@see ReflectionClassConstant} objects.
*
* @return array<string, ReflectionClassConstant> indexed by name
*/
public function getImmediateReflectionConstants() : array
{
if ($this->cachedReflectionConstants !== null) {
return $this->cachedReflectionConstants;
}
$constants = array_merge(
[],
...array_map(
function (ConstNode $constNode) : array {
$constants = [];
foreach ($constNode->consts as $constantPositionInNode => $constantNode) {
$constants[] = ReflectionClassConstant::createFromNode($this->reflector, $constNode, $constantPositionInNode, $this);
}
return $constants;
},
array_filter(
$this->node->stmts,
static function (Node\Stmt $stmt) : bool {
return $stmt instanceof ConstNode;
}
)
)
);
return $this->cachedReflectionConstants = array_combine(
array_map(
static function (ReflectionClassConstant $constant) : string {
return $constant->getName();
},
$constants
),
$constants
);
}
/**
* Get an associative array of the defined constants in this class,
* with keys as constant names and values as {@see ReflectionClassConstant} objects.
*
* @return array<string, ReflectionClassConstant> indexed by name
*/
public function getReflectionConstants() : array
{
// Note: constants are not merged via their name as array index, since internal PHP constant
// sorting does not follow `\array_merge()` semantics
/** @var ReflectionClassConstant[] $allReflectionConstants */
$allReflectionConstants = array_merge(
array_values($this->getImmediateReflectionConstants()),
...array_map(
static function (ReflectionClass $ancestor) : array {
return array_filter(
array_values($ancestor->getReflectionConstants()),
static function (ReflectionClassConstant $classConstant) : bool {
return ! $classConstant->isPrivate();
}
);
},
array_filter([$this->getParentClass()])
),
...array_map(
static function (ReflectionClass $interface) : array {
return array_values($interface->getReflectionConstants());
},
array_values($this->getInterfaces())
)
);
$reflectionConstants = [];
foreach ($allReflectionConstants as $constant) {
$constantName = $constant->getName();
if (isset($reflectionConstants[$constantName])) {
continue;
}
$reflectionConstants[$constantName] = $constant;
}
return $reflectionConstants;
}
/**
* Get the constructor method for this class.
*
* @throws OutOfBoundsException
*/
public function getConstructor() : ReflectionMethod
{
$constructors = array_values(array_filter($this->getMethods(), static function (ReflectionMethod $method) : bool {
return $method->isConstructor();
}));
if (! isset($constructors[0])) {
throw new OutOfBoundsException('Could not find method: __construct');
}
return $constructors[0];
}
/**
* Get only the properties for this specific class (i.e. do not search
* up parent classes etc.)
*
* @see ReflectionClass::getProperties() for the usage of filter
*
* @return array<string, ReflectionProperty>
*/
public function getImmediateProperties(?int $filter = null) : array
{
if ($this->cachedImmediateProperties === null) {
$properties = [];
foreach ($this->node->stmts as $stmt) {
if (! ($stmt instanceof PropertyNode)) {
continue;
}
foreach ($stmt->props as $propertyPositionInNode => $propertyNode) {
$prop = ReflectionProperty::createFromNode(
$this->reflector,
$stmt,
$propertyPositionInNode,
$this->declaringNamespace,
$this,
$this
);
$properties[$prop->getName()] = $prop;
}
}
$this->cachedImmediateProperties = $properties;
}
if ($filter === null) {
return $this->cachedImmediateProperties;
}
return array_filter(
$this->cachedImmediateProperties,
static function (ReflectionProperty $property) use ($filter) : bool {
return (bool) ($filter & $property->getModifiers());
}
);
}
/**
* Get the properties for this class.
*
* Filter the results to include only properties with certain attributes. Defaults
* to no filtering.
* Any combination of \ReflectionProperty::IS_STATIC,
* \ReflectionProperty::IS_PUBLIC,
* \ReflectionProperty::IS_PROTECTED,
* \ReflectionProperty::IS_PRIVATE.
* For example if $filter = \ReflectionProperty::IS_STATIC | \ReflectionProperty::IS_PUBLIC
* only the static public properties will be returned
*
* @return array<string, ReflectionProperty>
*/
public function getProperties(?int $filter = null) : array
{
if ($this->cachedProperties === null) {
// merging together properties from parent class, traits, current class (in this precise order)
$this->cachedProperties = array_merge(
array_merge(
[],
...array_map(
static function (ReflectionClass $ancestor) use ($filter) : array {
return array_filter(
$ancestor->getProperties($filter),
static function (ReflectionProperty $property) : bool {
return ! $property->isPrivate();
}
);
},
array_filter([$this->getParentClass()])
),
...array_map(
function (ReflectionClass $trait) use ($filter) {
return array_map(function (ReflectionProperty $property) use ($trait) : ReflectionProperty {
return ReflectionProperty::createFromNode(
$this->reflector,
$property->getAst(),
$property->getPositionInAst(),
$trait->declaringNamespace,
$property->getDeclaringClass(),
$this
);
}, $trait->getProperties($filter));
},
$this->getTraits()
)
),
$this->getImmediateProperties()
);
}
if ($filter === null) {
return $this->cachedProperties;
}
return array_filter(
$this->cachedProperties,
static function (ReflectionProperty $property) use ($filter) : bool {
return (bool) ($filter & $property->getModifiers());
}
);
}
/**
* Get the property called $name.
*
* Returns null if property does not exist.
*/
public function getProperty(string $name) : ?ReflectionProperty
{
$properties = $this->getProperties();
if (! isset($properties[$name])) {
return null;
}
return $properties[$name];
}
/**
* Does this class have the specified property?
*/
public function hasProperty(string $name) : bool
{
return $this->getProperty($name) !== null;
}
/**
* @return array<string, scalar|array<scalar>|null>
*/
public function getDefaultProperties() : array
{
return array_map(
static function (ReflectionProperty $property) {
return $property->getDefaultValue();
},
array_filter($this->getProperties(), static function (ReflectionProperty $property) : bool {
return $property->isDefault();
})
);
}
public function getFileName() : ?string
{
return $this->locatedSource->getFileName();
}
public function getLocatedSource() : LocatedSource
{
return $this->locatedSource;
}
/**
* Get the line number that this class starts on.
*/
public function getStartLine() : int
{
return $this->node->getStartLine();
}
/**
* Get the line number that this class ends on.
*/
public function getEndLine() : int
{
return $this->node->getEndLine();
}
public function getStartColumn() : int
{
return CalculateReflectionColum::getStartColumn($this->locatedSource->getSource(), $this->node);
}
public function getEndColumn() : int
{
return CalculateReflectionColum::getEndColumn($this->locatedSource->getSource(), $this->node);
}
/**
* Get the parent class, if it is defined. If this class does not have a
* specified parent class, this will throw an exception.
*
* @throws NotAClassReflection
*/
public function getParentClass() : ?ReflectionClass
{
if (! ($this->node instanceof ClassNode) || $this->node->extends === null) {
return null;
}
$parent = $this->reflector->reflect($this->node->extends->toString());
// @TODO use actual `ClassReflector` or `FunctionReflector`?
assert($parent instanceof self);
if ($parent->isInterface() || $parent->isTrait()) {
throw NotAClassReflection::fromReflectionClass($parent);
}
return $parent;
}
/**
* Gets the parent class names.
*
* @return list<class-string> A numerical array with parent class names as the values.
*/
public function getParentClassNames() : array
{
return array_map(static function (self $parentClass) : string {
return $parentClass->getName();
}, array_slice(array_reverse($this->getInheritanceClassHierarchy()), 1));
}
public function getDocComment() : string
{
return GetFirstDocComment::forNode($this->node);
}
public function isAnonymous() : bool
{
return $this->node->name === null;
}
/**
* Is this an internal class?
*/
public function isInternal() : bool
{
return $this->locatedSource->isInternal();
}
/**
* Is this a user-defined function (will always return the opposite of
* whatever isInternal returns).
*/
public function isUserDefined() : bool
{
return ! $this->isInternal();
}
/**
* Is this class an abstract class.
*/
public function isAbstract() : bool
{
return $this->node instanceof ClassNode && $this->node->isAbstract();
}
/**
* Is this class a final class.
*/
public function isFinal() : bool
{
return $this->node instanceof ClassNode && $this->node->isFinal();
}
/**
* Get the core-reflection-compatible modifier values.
*/
public function getModifiers() : int
{
$val = 0;
$val += $this->isAbstract() ? CoreReflectionClass::IS_EXPLICIT_ABSTRACT : 0;
$val += $this->isFinal() ? CoreReflectionClass::IS_FINAL : 0;
return $val;
}
/**
* Is this reflection a trait?
*/
public function isTrait() : bool
{
return $this->node instanceof TraitNode;
}
/**
* Is this reflection an interface?
*/
public function isInterface() : bool
{
return $this->node instanceof InterfaceNode;
}
/**
* Get the traits used, if any are defined. If this class does not have any
* defined traits, this will return an empty array.
*
* @return list<ReflectionClass>
*/
public function getTraits() : array
{
return array_map(
function (Node\Name $importedTrait) : ReflectionClass {
return $this->reflectClassForNamedNode($importedTrait);
},
array_merge(
[],
...array_map(
static function (TraitUse $traitUse) : array {
return $traitUse->traits;
},
array_filter($this->node->stmts, static function (Node $node) : bool {
return $node instanceof TraitUse;
})
)
)
);
}
/**
* Given an AST Node\Name, create a new ReflectionClass for the element.
*/
private function reflectClassForNamedNode(Node\Name $node) : self
{
// @TODO use actual `ClassReflector` or `FunctionReflector`?
if ($this->isAnonymous()) {
$class = (new BetterReflection())->classReflector()->reflect($node->toString());
} else {
$class = $this->reflector->reflect($node->toString());
assert($class instanceof self);
}
return $class;
}
/**
* Get the names of the traits used as an array of strings, if any are
* defined. If this class does not have any defined traits, this will
* return an empty array.
*
* @return string[]
*/
public function getTraitNames() : array
{
return array_map(
static function (ReflectionClass $trait) : string {
return $trait->getName();
},
$this->getTraits()
);
}
/**
* Return a list of the aliases used when importing traits for this class.
* The returned array is in key/value pair in this format:.
*
* 'aliasedMethodName' => 'ActualClass::actualMethod'
*
* @return array<string, string>
*
* @example
* // When reflecting a class such as:
* class Foo
* {
* use MyTrait {
* myTraitMethod as myAliasedMethod;
* }
* }
* // This method would return
* // ['myAliasedMethod' => 'MyTrait::myTraitMethod']
*/
public function getTraitAliases() : array
{
$this->parseTraitUsages();
/** @return array<string, string> */
return $this->cachedTraitAliases;
}
/**
* Return a list of the precedences used when importing traits for this class.
* The returned array is in key/value pair in this format:.
*
* 'Class::method' => 'Class::method'
*
* @return array<string, string>
*
* @example
* // When reflecting a class such as:
* class Foo
* {
* use MyTrait, MyTrait2 {
* MyTrait2::foo insteadof MyTrait1;
* }
* }
* // This method would return
* // ['MyTrait1::foo' => 'MyTrait2::foo']
*/
private function getTraitPrecedences() : array
{
$this->parseTraitUsages();
/** @return array<string, string> */
return $this->cachedTraitPrecedences;
}
private function parseTraitUsages() : void
{
if ($this->cachedTraitAliases !== null && $this->cachedTraitPrecedences !== null) {
return;
}
/** @var Node\Stmt\TraitUse[] $traitUsages */
$traitUsages = array_filter($this->node->stmts, static function (Node $node) : bool {
return $node instanceof TraitUse;
});
$this->cachedTraitAliases = [];
$this->cachedTraitPrecedences = [];
foreach ($traitUsages as $traitUsage) {
$traitNames = $traitUsage->traits;
$adaptations = $traitUsage->adaptations;
foreach ($adaptations as $adaptation) {
$usedTrait = $adaptation->trait;
if ($usedTrait === null) {
$usedTrait = $traitNames[0];
}
if ($adaptation instanceof Node\Stmt\TraitUseAdaptation\Alias && $adaptation->newName) {
$this->cachedTraitAliases[$adaptation->newName->name] = $this->methodHash($usedTrait->toString(), $adaptation->method->toString());
continue;
}
if (! $adaptation instanceof Node\Stmt\TraitUseAdaptation\Precedence || ! $adaptation->insteadof) {
continue;
}
foreach ($adaptation->insteadof as $insteadof) {
$adaptationNameHash = $this->methodHash($insteadof->toString(), $adaptation->method->toString());
$originalNameHash = $this->methodHash($usedTrait->toString(), $adaptation->method->toString());
$this->cachedTraitPrecedences[$adaptationNameHash] = $originalNameHash;
}
}
}
}
/**
* @psalm-pure
*/
private function methodHash(string $className, string $methodName) : string
{
return sprintf(
'%s::%s',
$className,
$methodName
);
}
/**
* Gets the interfaces.
*
* @link https://php.net/manual/en/reflectionclass.getinterfaces.php
*
* @return array<string, ReflectionClass> An associative array of interfaces, with keys as interface names and the array
* values as {@see ReflectionClass} objects.
*/
public function getInterfaces() : array
{
return array_merge(...array_map(
static function (self $reflectionClass) : array {
return $reflectionClass->getCurrentClassImplementedInterfacesIndexedByName();
},
$this->getInheritanceClassHierarchy()
));
}
/**
* Get only the interfaces that this class implements (i.e. do not search
* up parent classes etc.)
*
* @return array<string, ReflectionClass>
*/
public function getImmediateInterfaces() : array
{
return $this->getCurrentClassImplementedInterfacesIndexedByName();
}
/**
* Gets the interface names.
*
* @link https://php.net/manual/en/reflectionclass.getinterfacenames.php
*
* @return list<string> A numerical array with interface names as the values.
*/
public function getInterfaceNames() : array
{
return array_values(array_map(
static function (self $interface) : string {
return $interface->getName();
},
$this->getInterfaces()
));
}
/**
* Checks whether the given object is an instance.
*
* @link https://php.net/manual/en/reflectionclass.isinstance.php
*
* @param object $object
*
* @throws NotAnObject
*
* @psalm-suppress DocblockTypeContradiction
*/
public function isInstance($object) : bool
{
if (! is_object($object)) {
throw NotAnObject::fromNonObject($object);
}
$className = $this->getName();
// note: since $object was loaded, we can safely assume that $className is available in the current
// php script execution context
return $object instanceof $className;
}
/**
* Checks whether the given class string is a subclass of this class.
*
* @link https://php.net/manual/en/reflectionclass.isinstance.php
*/
public function isSubclassOf(string $className) : bool
{
return in_array(
ltrim($className, '\\'),
array_map(
static function (self $reflectionClass) : string {
return $reflectionClass->getName();
},
array_slice(array_reverse($this->getInheritanceClassHierarchy()), 1)
),
true
);
}
/**
* Checks whether this class implements the given interface.
*
* @link https://php.net/manual/en/reflectionclass.implementsinterface.php
*/
public function implementsInterface(string $interfaceName) : bool
{
return in_array(ltrim($interfaceName, '\\'), $this->getInterfaceNames(), true);
}
/**
* Checks whether this reflection is an instantiable class
*
* @link https://php.net/manual/en/reflectionclass.isinstantiable.php
*/
public function isInstantiable() : bool
{
// @TODO doesn't consider internal non-instantiable classes yet.
if ($this->isAbstract()) {
return false;
}
if ($this->isInterface()) {
return false;
}
if ($this->isTrait()) {
return false;
}
try {
return $this->getConstructor()->isPublic();
} catch (OutOfBoundsException $e) {
return true;
}
}
/**
* Checks whether this is a reflection of a class that supports the clone operator
*
* @link https://php.net/manual/en/reflectionclass.iscloneable.php
*/
public function isCloneable() : bool
{
if (! $this->isInstantiable()) {
return false;
}
if (! $this->hasMethod('__clone')) {
return true;
}
return $this->getMethod('__clone')->isPublic();
}
/**
* Checks if iterateable
*
* @link https://php.net/manual/en/reflectionclass.isiterateable.php
*/
public function isIterateable() : bool
{
return $this->isInstantiable() && $this->implementsInterface(Traversable::class);
}
/**
* @return array<string, ReflectionClass>
*/
private function getCurrentClassImplementedInterfacesIndexedByName() : array
{
$node = $this->node;
if ($node instanceof ClassNode) {
return array_merge(
[],
...array_map(
function (Node\Name $interfaceName) : array {
return $this
->reflectClassForNamedNode($interfaceName)
->getInterfacesHierarchy();
},
$node->implements
)
);
}
// assumption: first key is the current interface
return $this->isInterface()
? array_slice($this->getInterfacesHierarchy(), 1)
: [];
}
/**
* @return ReflectionClass[] ordered from inheritance root to leaf (this class)
*/
private function getInheritanceClassHierarchy() : array
{
$parentClass = $this->getParentClass();
return $parentClass
? array_merge($parentClass->getInheritanceClassHierarchy(), [$this])
: [$this];
}
/**
* This method allows us to retrieve all interfaces parent of the this interface. Do not use on class nodes!
*
* @return array<string, ReflectionClass> parent interfaces of this interface
*
* @throws NotAnInterfaceReflection
*/
private function getInterfacesHierarchy() : array
{
if (! $this->isInterface()) {
throw NotAnInterfaceReflection::fromReflectionClass($this);
}
$node = $this->node;
assert($node instanceof InterfaceNode);
return array_merge(
[$this->getName() => $this],
...array_map(
function (Node\Name $interfaceName) : array {
return $this
->reflectClassForNamedNode($interfaceName)
->getInterfacesHierarchy();
},
$node->extends
)
);
}
/**
* @throws Uncloneable
*/
public function __clone()
{
throw Uncloneable::fromClass(static::class);
}
/**
* Get the value of a static property, if it exists. Throws a
* PropertyDoesNotExist exception if it does not exist or is not static.
* (note, differs very slightly from internal reflection behaviour)
*
* @return mixed
*
* @throws ClassDoesNotExist
* @throws NoObjectProvided
* @throws NotAnObject
* @throws ObjectNotInstanceOfClass
*/
public function getStaticPropertyValue(string $propertyName)
{
$property = $this->getProperty($propertyName);
if (! $property || ! $property->isStatic()) {
throw PropertyDoesNotExist::fromName($propertyName);
}
return $property->getValue();
}
/**
* Set the value of a static property
*
* @param mixed $value
*
* @throws ClassDoesNotExist
* @throws NoObjectProvided
* @throws NotAnObject
* @throws ObjectNotInstanceOfClass
*/
public function setStaticPropertyValue(string $propertyName, $value) : void
{
$property = $this->getProperty($propertyName);
if (! $property || ! $property->isStatic()) {
throw PropertyDoesNotExist::fromName($propertyName);
}
$property->setValue($value);
}
/**
* @return array<string, mixed>
*/
public function getStaticProperties() : array
{
$staticProperties = [];
foreach ($this->getProperties() as $property) {
if (! $property->isStatic()) {
continue;
}
$staticProperties[$property->getName()] = $property->getValue();
}
return $staticProperties;
}
/**
* Retrieve the AST node for this class
*/
public function getAst() : ClassLikeNode
{
return $this->node;
}
public function getDeclaringNamespaceAst() : ?Namespace_
{
return $this->declaringNamespace;
}
/**
* Set whether this class is final or not
*
* @throws NotAClassReflection
*/
public function setFinal(bool $isFinal) : void
{
if (! $this->node instanceof ClassNode) {
throw NotAClassReflection::fromReflectionClass($this);
}
if ($isFinal === true) {
$this->node->flags |= ClassNode::MODIFIER_FINAL;
return;
}
$this->node->flags &= ~ClassNode::MODIFIER_FINAL;
}
/**
* Remove the named method from the class.
*
* Returns true if method was successfully removed.
* Returns false if method was not found, or could not be removed.
*/
public function removeMethod(string $methodName) : bool
{
$lowerName = strtolower($methodName);
foreach ($this->node->stmts as $key => $stmt) {
if ($stmt instanceof ClassMethod && $lowerName === $stmt->name->toLowerString()) {
unset($this->node->stmts[$key]);
$this->cachedMethods = null;
return true;
}
}
return false;
}
/**
* Add a new method to the class.
*/
public function addMethod(string $methodName) : void
{
$this->node->stmts[] = new ClassMethod($methodName);
$this->cachedMethods = null;
}
/**
* Add a new property to the class.
*
* Visibility defaults to \ReflectionProperty::IS_PUBLIC, or can be ::IS_PROTECTED or ::IS_PRIVATE.
*/
public function addProperty(
string $propertyName,
int $visibility = CoreReflectionProperty::IS_PUBLIC,
bool $static = false
) : void {
$type = 0;
switch ($visibility) {
case CoreReflectionProperty::IS_PRIVATE:
$type |= ClassNode::MODIFIER_PRIVATE;
break;
case CoreReflectionProperty::IS_PROTECTED:
$type |= ClassNode::MODIFIER_PROTECTED;
break;
default:
$type |= ClassNode::MODIFIER_PUBLIC;
break;
}
if ($static) {
$type |= ClassNode::MODIFIER_STATIC;
}
$this->node->stmts[] = new PropertyNode($type, [new Node\Stmt\PropertyProperty($propertyName)]);
$this->cachedProperties = null;
$this->cachedImmediateProperties = null;
}
/**
* Remove a property from the class.
*/
public function removeProperty(string $propertyName) : bool
{
$lowerName = strtolower($propertyName);
foreach ($this->node->stmts as $key => $stmt) {
if (! ($stmt instanceof PropertyNode)) {
continue;
}
$propertyNames = array_map(static function (Node\Stmt\PropertyProperty $propertyProperty) : string {
return $propertyProperty->name->toLowerString();
}, $stmt->props);
if (in_array($lowerName, $propertyNames, true)) {
$this->cachedProperties = null;
$this->cachedImmediateProperties = null;
unset($this->node->stmts[$key]);
return true;
}
}
return false;
}
}
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