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<?php
declare (strict_types=1);
namespace Rector\Core\Reflection;
use PhpParser\Node;
use PhpParser\Node\Expr\FuncCall;
use PhpParser\Node\Expr\MethodCall;
use PhpParser\Node\Expr\New_;
use PhpParser\Node\Expr\PropertyFetch;
use PhpParser\Node\Expr\StaticCall;
use PhpParser\Node\Expr\StaticPropertyFetch;
use PhpParser\Node\Name;
use PhpParser\Node\Stmt\Class_;
use PhpParser\Node\Stmt\ClassLike;
use PhpParser\Node\Stmt\ClassMethod;
use PHPStan\Analyser\Scope;
use PHPStan\Reflection\ClassReflection;
use PHPStan\Reflection\FunctionReflection;
use PHPStan\Reflection\MethodReflection;
use PHPStan\Reflection\Php\PhpPropertyReflection;
use PHPStan\Reflection\ReflectionProvider;
use PHPStan\Type\TypeUtils;
use PHPStan\Type\TypeWithClassName;
use Rector\Core\Exception\ShouldNotHappenException;
use Rector\Core\NodeAnalyzer\ClassAnalyzer;
use Rector\Core\PhpParser\AstResolver;
use Rector\Core\PHPStan\Reflection\TypeToCallReflectionResolver\TypeToCallReflectionResolverRegistry;
use Rector\Core\ValueObject\MethodName;
use Rector\NodeNameResolver\NodeNameResolver;
use Rector\NodeTypeResolver\Node\AttributeKey;
use Rector\NodeTypeResolver\NodeTypeResolver;
use Rector\StaticTypeMapper\ValueObject\Type\ShortenedObjectType;
final class ReflectionResolver
{
/**
* @readonly
* @var \PHPStan\Reflection\ReflectionProvider
*/
private $reflectionProvider;
/**
* @readonly
* @var \Rector\NodeTypeResolver\NodeTypeResolver
*/
private $nodeTypeResolver;
/**
* @readonly
* @var \Rector\NodeNameResolver\NodeNameResolver
*/
private $nodeNameResolver;
/**
* @readonly
* @var \Rector\Core\PHPStan\Reflection\TypeToCallReflectionResolver\TypeToCallReflectionResolverRegistry
*/
private $typeToCallReflectionResolverRegistry;
/**
* @readonly
* @var \Rector\Core\NodeAnalyzer\ClassAnalyzer
*/
private $classAnalyzer;
/**
* @readonly
* @var \Rector\Core\Reflection\MethodReflectionResolver
*/
private $methodReflectionResolver;
/**
* @readonly
* @var \Rector\Core\PhpParser\AstResolver
*/
private $astResolver;
public function __construct(ReflectionProvider $reflectionProvider, NodeTypeResolver $nodeTypeResolver, NodeNameResolver $nodeNameResolver, TypeToCallReflectionResolverRegistry $typeToCallReflectionResolverRegistry, ClassAnalyzer $classAnalyzer, \Rector\Core\Reflection\MethodReflectionResolver $methodReflectionResolver, AstResolver $astResolver)
{
$this->reflectionProvider = $reflectionProvider;
$this->nodeTypeResolver = $nodeTypeResolver;
$this->nodeNameResolver = $nodeNameResolver;
$this->typeToCallReflectionResolverRegistry = $typeToCallReflectionResolverRegistry;
$this->classAnalyzer = $classAnalyzer;
$this->methodReflectionResolver = $methodReflectionResolver;
$this->astResolver = $astResolver;
}
/**
* @api
*/
public function resolveClassAndAnonymousClass(ClassLike $classLike) : ClassReflection
{
if ($classLike instanceof Class_ && $this->classAnalyzer->isAnonymousClass($classLike)) {
$classLikeScope = $classLike->getAttribute(AttributeKey::SCOPE);
if (!$classLikeScope instanceof Scope) {
throw new ShouldNotHappenException();
}
return $this->reflectionProvider->getAnonymousClassReflection($classLike, $classLikeScope);
}
$className = (string) $this->nodeNameResolver->getName($classLike);
return $this->reflectionProvider->getClass($className);
}
public function resolveClassReflection(?Node $node) : ?ClassReflection
{
if (!$node instanceof Node) {
return null;
}
$scope = $node->getAttribute(AttributeKey::SCOPE);
if (!$scope instanceof Scope) {
return null;
}
return $scope->getClassReflection();
}
/**
* @param \PhpParser\Node\Expr\MethodCall|\PhpParser\Node\Expr\StaticCall|\PhpParser\Node\Expr\PropertyFetch|\PhpParser\Node\Expr\StaticPropertyFetch $node
*/
public function resolveClassReflectionSourceObject($node) : ?ClassReflection
{
if ($node instanceof PropertyFetch || $node instanceof StaticPropertyFetch) {
$objectType = $node instanceof PropertyFetch ? $this->nodeTypeResolver->getType($node->var) : $this->nodeTypeResolver->getType($node->class);
if (!$objectType instanceof TypeWithClassName) {
return null;
}
$className = $objectType->getClassName();
if (!$this->reflectionProvider->hasClass($className)) {
return null;
}
return $this->reflectionProvider->getClass($className);
}
$classMethod = $this->astResolver->resolveClassMethodFromCall($node);
return $this->resolveClassReflection($classMethod);
}
/**
* @param class-string $className
*/
public function resolveMethodReflection(string $className, string $methodName, ?Scope $scope) : ?MethodReflection
{
return $this->methodReflectionResolver->resolveMethodReflection($className, $methodName, $scope);
}
public function resolveMethodReflectionFromStaticCall(StaticCall $staticCall) : ?MethodReflection
{
$objectType = $this->nodeTypeResolver->getType($staticCall->class);
if ($objectType instanceof ShortenedObjectType) {
/** @var array<class-string> $classNames */
$classNames = [$objectType->getFullyQualifiedName()];
} else {
/** @var array<class-string> $classNames */
$classNames = TypeUtils::getDirectClassNames($objectType);
}
$methodName = $this->nodeNameResolver->getName($staticCall->name);
if ($methodName === null) {
return null;
}
$scope = $staticCall->getAttribute(AttributeKey::SCOPE);
foreach ($classNames as $className) {
$methodReflection = $this->resolveMethodReflection($className, $methodName, $scope);
if ($methodReflection instanceof MethodReflection) {
return $methodReflection;
}
}
return null;
}
public function resolveMethodReflectionFromMethodCall(MethodCall $methodCall) : ?MethodReflection
{
$callerType = $this->nodeTypeResolver->getType($methodCall->var);
if (!$callerType instanceof TypeWithClassName) {
return null;
}
$methodName = $this->nodeNameResolver->getName($methodCall->name);
if ($methodName === null) {
return null;
}
$scope = $methodCall->getAttribute(AttributeKey::SCOPE);
return $this->resolveMethodReflection($callerType->getClassName(), $methodName, $scope);
}
/**
* @param \PhpParser\Node\Expr\MethodCall|\PhpParser\Node\Expr\FuncCall|\PhpParser\Node\Expr\StaticCall $call
* @return \PHPStan\Reflection\MethodReflection|\PHPStan\Reflection\FunctionReflection|null
*/
public function resolveFunctionLikeReflectionFromCall($call)
{
if ($call instanceof MethodCall) {
return $this->resolveMethodReflectionFromMethodCall($call);
}
if ($call instanceof StaticCall) {
return $this->resolveMethodReflectionFromStaticCall($call);
}
return $this->resolveFunctionReflectionFromFuncCall($call);
}
public function resolveMethodReflectionFromClassMethod(ClassMethod $classMethod, Scope $scope) : ?MethodReflection
{
$classReflection = $scope->getClassReflection();
if (!$classReflection instanceof ClassReflection) {
return null;
}
$className = $classReflection->getName();
$methodName = $this->nodeNameResolver->getName($classMethod);
return $this->resolveMethodReflection($className, $methodName, $scope);
}
public function resolveMethodReflectionFromNew(New_ $new) : ?MethodReflection
{
$newClassType = $this->nodeTypeResolver->getType($new->class);
if (!$newClassType instanceof TypeWithClassName) {
return null;
}
$scope = $new->getAttribute(AttributeKey::SCOPE);
return $this->resolveMethodReflection($newClassType->getClassName(), MethodName::CONSTRUCT, $scope);
}
/**
* @param \PhpParser\Node\Expr\PropertyFetch|\PhpParser\Node\Expr\StaticPropertyFetch $propertyFetch
*/
public function resolvePropertyReflectionFromPropertyFetch($propertyFetch) : ?PhpPropertyReflection
{
$propertyName = $this->nodeNameResolver->getName($propertyFetch->name);
if ($propertyName === null) {
return null;
}
$fetcheeType = $propertyFetch instanceof PropertyFetch ? $this->nodeTypeResolver->getType($propertyFetch->var) : $this->nodeTypeResolver->getType($propertyFetch->class);
if (!$fetcheeType instanceof TypeWithClassName) {
return null;
}
if (!$this->reflectionProvider->hasClass($fetcheeType->getClassName())) {
return null;
}
$classReflection = $this->reflectionProvider->getClass($fetcheeType->getClassName());
if (!$classReflection->hasProperty($propertyName)) {
return null;
}
$scope = $propertyFetch->getAttribute(AttributeKey::SCOPE);
if ($scope instanceof Scope) {
$propertyReflection = $classReflection->getProperty($propertyName, $scope);
if ($propertyReflection instanceof PhpPropertyReflection) {
return $propertyReflection;
}
return null;
}
return $classReflection->getNativeProperty($propertyName);
}
/**
* @return \PHPStan\Reflection\FunctionReflection|\PHPStan\Reflection\MethodReflection|null
*/
private function resolveFunctionReflectionFromFuncCall(FuncCall $funcCall)
{
$scope = $funcCall->getAttribute(AttributeKey::SCOPE);
if ($funcCall->name instanceof Name) {
if ($this->reflectionProvider->hasFunction($funcCall->name, $scope)) {
return $this->reflectionProvider->getFunction($funcCall->name, $scope);
}
return null;
}
if (!$scope instanceof Scope) {
return null;
}
// fallback to callable
$funcCallNameType = $scope->getType($funcCall->name);
return $this->typeToCallReflectionResolverRegistry->resolve($funcCallNameType, $scope);
}
}