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<?php
declare (strict_types=1);
namespace Rector\PhpParser\Node;
use PhpParser\Node;
use PhpParser\Node\Expr\Closure;
use PhpParser\Node\Expr\Variable;
use PhpParser\Node\Expr\Yield_;
use PhpParser\Node\Expr\YieldFrom;
use PhpParser\Node\FunctionLike;
use PhpParser\Node\Stmt;
use PhpParser\Node\Stmt\Class_;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\Node\Stmt\Function_;
use PhpParser\Node\Stmt\Return_;
use PhpParser\NodeFinder;
use PhpParser\NodeTraverser;
use Rector\NodeAnalyzer\ClassAnalyzer;
use Rector\NodeNameResolver\NodeNameResolver;
use Rector\PhpDocParser\NodeTraverser\SimpleCallableNodeTraverser;
use RectorPrefix202410\Webmozart\Assert\Assert;
/**
* @see \Rector\Tests\PhpParser\Node\BetterNodeFinder\BetterNodeFinderTest
*/
final class BetterNodeFinder
{
/**
* @readonly
* @var \PhpParser\NodeFinder
*/
private $nodeFinder;
/**
* @readonly
* @var \Rector\NodeNameResolver\NodeNameResolver
*/
private $nodeNameResolver;
/**
* @readonly
* @var \Rector\NodeAnalyzer\ClassAnalyzer
*/
private $classAnalyzer;
/**
* @readonly
* @var \Rector\PhpDocParser\NodeTraverser\SimpleCallableNodeTraverser
*/
private $simpleCallableNodeTraverser;
public function __construct(NodeFinder $nodeFinder, NodeNameResolver $nodeNameResolver, ClassAnalyzer $classAnalyzer, SimpleCallableNodeTraverser $simpleCallableNodeTraverser)
{
$this->nodeFinder = $nodeFinder;
$this->nodeNameResolver = $nodeNameResolver;
$this->classAnalyzer = $classAnalyzer;
$this->simpleCallableNodeTraverser = $simpleCallableNodeTraverser;
}
/**
* @template T of Node
* @param array<class-string<T>> $types
* @param Node|Node[]|Stmt[] $nodes
* @return T[]
*/
public function findInstancesOf($nodes, array $types) : array
{
$foundInstances = [];
foreach ($types as $type) {
$currentFoundInstances = $this->findInstanceOf($nodes, $type);
$foundInstances = \array_merge($foundInstances, $currentFoundInstances);
}
return $foundInstances;
}
/**
* @template T of Node
* @param class-string<T> $type
* @param Node|Node[]|Stmt[] $nodes
* @return T[]
*/
public function findInstanceOf($nodes, string $type) : array
{
return $this->nodeFinder->findInstanceOf($nodes, $type);
}
/**
* @template T of Node
* @param class-string<T> $type
* @param Node|Node[] $nodes
*
* @return T|null
*/
public function findFirstInstanceOf($nodes, string $type) : ?Node
{
Assert::isAOf($type, Node::class);
return $this->nodeFinder->findFirstInstanceOf($nodes, $type);
}
/**
* @param class-string<Node> $type
* @param Node[] $nodes
*/
public function hasInstanceOfName(array $nodes, string $type, string $name) : bool
{
Assert::isAOf($type, Node::class);
return (bool) $this->findInstanceOfName($nodes, $type, $name);
}
/**
* @param Node[] $nodes
*/
public function hasVariableOfName(array $nodes, string $name) : bool
{
return $this->findVariableOfName($nodes, $name) instanceof Node;
}
/**
* @api
* @param Node|Node[] $nodes
* @return Variable|null
*/
public function findVariableOfName($nodes, string $name) : ?Node
{
return $this->findInstanceOfName($nodes, Variable::class, $name);
}
/**
* @param Node|Node[] $nodes
* @param array<class-string<Node>> $types
*/
public function hasInstancesOf($nodes, array $types) : bool
{
Assert::allIsAOf($types, Node::class);
foreach ($types as $type) {
$foundNode = $this->nodeFinder->findFirstInstanceOf($nodes, $type);
if (!$foundNode instanceof Node) {
continue;
}
return \true;
}
return \false;
}
/**
* @param Node|Node[] $nodes
* @param callable(Node $node): bool $filter
* @return Node[]
*/
public function find($nodes, callable $filter) : array
{
return $this->nodeFinder->find($nodes, $filter);
}
/**
* @api symfony
* @param Node[] $nodes
* @return Class_|null
*/
public function findFirstNonAnonymousClass(array $nodes) : ?Node
{
// skip anonymous classes
return $this->findFirst($nodes, function (Node $node) : bool {
return $node instanceof Class_ && !$this->classAnalyzer->isAnonymousClass($node);
});
}
/**
* @param Node|Node[] $nodes
* @param callable(Node $filter): bool $filter
*/
public function findFirst($nodes, callable $filter) : ?Node
{
return $this->nodeFinder->findFirst($nodes, $filter);
}
/**
* @template T of Node
* @param array<class-string<T>>|class-string<T> $types
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure $functionLike
*/
public function hasInstancesOfInFunctionLikeScoped($functionLike, $types) : bool
{
if (\is_string($types)) {
$types = [$types];
}
$isFoundNode = \false;
$this->simpleCallableNodeTraverser->traverseNodesWithCallable((array) $functionLike->stmts, static function (Node $subNode) use($types, &$isFoundNode) : ?int {
if ($subNode instanceof Class_ || $subNode instanceof FunctionLike) {
return NodeTraverser::DONT_TRAVERSE_CURRENT_AND_CHILDREN;
}
foreach ($types as $type) {
if ($subNode instanceof $type) {
$isFoundNode = \true;
return NodeTraverser::STOP_TRAVERSAL;
}
}
return null;
});
return $isFoundNode;
}
/**
* @return Return_[]
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure $functionLike
*/
public function findReturnsScoped($functionLike) : array
{
$returns = [];
$this->simpleCallableNodeTraverser->traverseNodesWithCallable((array) $functionLike->stmts, function (Node $subNode) use(&$returns) : ?int {
if ($subNode instanceof Class_ || $subNode instanceof FunctionLike) {
return NodeTraverser::DONT_TRAVERSE_CURRENT_AND_CHILDREN;
}
if ($subNode instanceof Yield_ || $subNode instanceof YieldFrom) {
$returns = [];
return NodeTraverser::STOP_TRAVERSAL;
}
if ($subNode instanceof Return_) {
$returns[] = $subNode;
}
return null;
});
Assert::allIsInstanceOf($returns, Return_::class);
return $returns;
}
/**
* @api to be used
*
* @template T of Node
* @param Node[] $nodes
* @param class-string<T>|array<class-string<T>> $types
* @return T[]
*/
public function findInstancesOfScoped(array $nodes, $types) : array
{
// here verify only pass single nodes as FunctionLike
if (\count($nodes) === 1 && $nodes[0] instanceof FunctionLike) {
$nodes = (array) $nodes[0]->getStmts();
}
if (\is_string($types)) {
$types = [$types];
}
/** @var T[] $foundNodes */
$foundNodes = [];
$this->simpleCallableNodeTraverser->traverseNodesWithCallable($nodes, static function (Node $subNode) use($types, &$foundNodes) : ?int {
if ($subNode instanceof Class_ || $subNode instanceof FunctionLike) {
return NodeTraverser::DONT_TRAVERSE_CURRENT_AND_CHILDREN;
}
foreach ($types as $type) {
if ($subNode instanceof $type) {
$foundNodes[] = $subNode;
return null;
}
}
return null;
});
return $foundNodes;
}
/**
* @template T of Node
* @param array<class-string<T>>|class-string<T> $types
* @return array<T>
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure $functionLike
*/
public function findInstancesOfInFunctionLikeScoped($functionLike, $types) : array
{
return $this->findInstancesOfScoped([$functionLike], $types);
}
/**
* @param callable(Node $node): bool $filter
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure $functionLike
*/
public function findFirstInFunctionLikeScoped($functionLike, callable $filter) : ?Node
{
if ($functionLike->stmts === null) {
return null;
}
$foundNode = $this->findFirst($functionLike->stmts, $filter);
if (!$foundNode instanceof Node) {
return null;
}
if (!$this->hasInstancesOf($functionLike->stmts, [Class_::class, FunctionLike::class])) {
return $foundNode;
}
$scopedNode = null;
$this->simpleCallableNodeTraverser->traverseNodesWithCallable($functionLike->stmts, function (Node $subNode) use(&$scopedNode, $foundNode, $filter) : ?int {
if ($subNode instanceof Class_ || $subNode instanceof FunctionLike) {
if ($foundNode instanceof $subNode && $subNode === $foundNode) {
$scopedNode = $subNode;
return NodeTraverser::STOP_TRAVERSAL;
}
return NodeTraverser::DONT_TRAVERSE_CURRENT_AND_CHILDREN;
}
if (!$foundNode instanceof $subNode) {
return null;
}
// handle after Closure
// @see https://github.com/rectorphp/rector-src/pull/4931
$scopedFoundNode = $this->findFirst($subNode, $filter);
if ($scopedFoundNode === $subNode) {
$scopedNode = $subNode;
return NodeTraverser::STOP_TRAVERSAL;
}
return null;
});
return $scopedNode;
}
/**
* @template T of Node
* @param Node|Node[] $nodes
* @param class-string<T> $type
*/
private function findInstanceOfName($nodes, string $type, string $name) : ?Node
{
Assert::isAOf($type, Node::class);
return $this->nodeFinder->findFirst($nodes, function (Node $node) use($type, $name) : bool {
return $node instanceof $type && $this->nodeNameResolver->isName($node, $name);
});
}
}