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<?php
declare (strict_types=1);
namespace Rector\PhpParser\NodeFinder;
use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\ArrayDimFetch;
use PhpParser\Node\Expr\Assign;
use PhpParser\Node\Expr\FuncCall;
use PhpParser\Node\Expr\MethodCall;
use PhpParser\Node\Expr\NullsafePropertyFetch;
use PhpParser\Node\Expr\PropertyFetch;
use PhpParser\Node\Expr\StaticCall;
use PhpParser\Node\Expr\StaticPropertyFetch;
use PhpParser\Node\Param;
use PhpParser\Node\Stmt;
use PhpParser\Node\Stmt\Class_;
use PhpParser\Node\Stmt\Property;
use PhpParser\Node\Stmt\Trait_;
use PHPStan\Analyser\Scope;
use PHPStan\Reflection\ClassReflection;
use PHPStan\Type\ObjectType;
use PHPStan\Type\StaticType;
use PHPStan\Type\TypeWithClassName;
use Rector\NodeAnalyzer\PropertyFetchAnalyzer;
use Rector\NodeNameResolver\NodeNameResolver;
use Rector\NodeTypeResolver\Node\AttributeKey;
use Rector\NodeTypeResolver\NodeTypeResolver;
use Rector\NodeTypeResolver\PHPStan\ParametersAcceptorSelectorVariantsWrapper;
use Rector\PhpDocParser\NodeTraverser\SimpleCallableNodeTraverser;
use Rector\PhpParser\AstResolver;
use Rector\PhpParser\Node\BetterNodeFinder;
use Rector\Reflection\ReflectionResolver;
final class PropertyFetchFinder
{
/**
* @readonly
* @var \Rector\PhpParser\Node\BetterNodeFinder
*/
private $betterNodeFinder;
/**
* @readonly
* @var \Rector\NodeNameResolver\NodeNameResolver
*/
private $nodeNameResolver;
/**
* @readonly
* @var \Rector\Reflection\ReflectionResolver
*/
private $reflectionResolver;
/**
* @readonly
* @var \Rector\PhpParser\AstResolver
*/
private $astResolver;
/**
* @readonly
* @var \Rector\NodeTypeResolver\NodeTypeResolver
*/
private $nodeTypeResolver;
/**
* @readonly
* @var \Rector\NodeAnalyzer\PropertyFetchAnalyzer
*/
private $propertyFetchAnalyzer;
/**
* @readonly
* @var \Rector\PhpDocParser\NodeTraverser\SimpleCallableNodeTraverser
*/
private $simpleCallableNodeTraverser;
public function __construct(BetterNodeFinder $betterNodeFinder, NodeNameResolver $nodeNameResolver, ReflectionResolver $reflectionResolver, AstResolver $astResolver, NodeTypeResolver $nodeTypeResolver, PropertyFetchAnalyzer $propertyFetchAnalyzer, SimpleCallableNodeTraverser $simpleCallableNodeTraverser)
{
$this->betterNodeFinder = $betterNodeFinder;
$this->nodeNameResolver = $nodeNameResolver;
$this->reflectionResolver = $reflectionResolver;
$this->astResolver = $astResolver;
$this->nodeTypeResolver = $nodeTypeResolver;
$this->propertyFetchAnalyzer = $propertyFetchAnalyzer;
$this->simpleCallableNodeTraverser = $simpleCallableNodeTraverser;
}
/**
* @return array<PropertyFetch|StaticPropertyFetch>
* @param \PhpParser\Node\Stmt\Property|\PhpParser\Node\Param $propertyOrPromotedParam
*/
public function findPrivatePropertyFetches(Class_ $class, $propertyOrPromotedParam, Scope $scope) : array
{
$propertyName = $this->resolvePropertyName($propertyOrPromotedParam);
if ($propertyName === null) {
return [];
}
$classReflection = $this->reflectionResolver->resolveClassAndAnonymousClass($class);
$nodes = [$class];
$nodesTrait = $this->astResolver->parseClassReflectionTraits($classReflection);
$hasTrait = $nodesTrait !== [];
$nodes = \array_merge($nodes, $nodesTrait);
return $this->findPropertyFetchesInClassLike($class, $nodes, $propertyName, $hasTrait, $scope);
}
/**
* @return PropertyFetch[]|StaticPropertyFetch[]|NullsafePropertyFetch[]
*/
public function findLocalPropertyFetchesByName(Class_ $class, string $paramName) : array
{
/** @var PropertyFetch[]|StaticPropertyFetch[]|NullsafePropertyFetch[] $foundPropertyFetches */
$foundPropertyFetches = $this->betterNodeFinder->find($class->getMethods(), function (Node $subNode) use($paramName) : bool {
if ($subNode instanceof PropertyFetch) {
return $this->propertyFetchAnalyzer->isLocalPropertyFetchName($subNode, $paramName);
}
if ($subNode instanceof NullsafePropertyFetch) {
return $this->propertyFetchAnalyzer->isLocalPropertyFetchName($subNode, $paramName);
}
if ($subNode instanceof StaticPropertyFetch) {
return $this->propertyFetchAnalyzer->isLocalPropertyFetchName($subNode, $paramName);
}
return \false;
});
return $foundPropertyFetches;
}
/**
* @return ArrayDimFetch[]
*/
public function findLocalPropertyArrayDimFetchesAssignsByName(Class_ $class, Property $property) : array
{
$propertyName = $this->nodeNameResolver->getName($property);
/** @var ArrayDimFetch[] $propertyArrayDimFetches */
$propertyArrayDimFetches = [];
$this->simpleCallableNodeTraverser->traverseNodesWithCallable($class->getMethods(), function (Node $subNode) use(&$propertyArrayDimFetches, $propertyName) {
if (!$subNode instanceof Assign) {
return null;
}
if (!$subNode->var instanceof ArrayDimFetch) {
return null;
}
$dimFetchVar = $subNode->var;
if (!$dimFetchVar->var instanceof PropertyFetch && !$dimFetchVar->var instanceof StaticPropertyFetch) {
return null;
}
if (!$this->propertyFetchAnalyzer->isLocalPropertyFetchName($dimFetchVar->var, $propertyName)) {
return null;
}
$propertyArrayDimFetches[] = $dimFetchVar;
return null;
});
return $propertyArrayDimFetches;
}
/**
* @param \PhpParser\Node\Stmt\Class_|\PhpParser\Node\Stmt\Trait_ $class
*/
public function isLocalPropertyFetchByName(Expr $expr, $class, string $propertyName) : bool
{
if (!$expr instanceof PropertyFetch) {
return \false;
}
if (!$this->nodeNameResolver->isName($expr->name, $propertyName)) {
return \false;
}
if ($this->nodeNameResolver->isName($expr->var, 'this')) {
return \true;
}
$type = $this->nodeTypeResolver->getType($expr->var);
if ($type instanceof ObjectType || $type instanceof StaticType) {
return $this->nodeNameResolver->isName($class, $type->getClassName());
}
return \false;
}
/**
* @param Stmt[] $stmts
* @return PropertyFetch[]|StaticPropertyFetch[]
* @param \PhpParser\Node\Stmt\Class_|\PhpParser\Node\Stmt\Trait_ $class
*/
private function findPropertyFetchesInClassLike($class, array $stmts, string $propertyName, bool $hasTrait, Scope $scope) : array
{
/** @var PropertyFetch[]|StaticPropertyFetch[] $propertyFetches */
$propertyFetches = $this->betterNodeFinder->find($stmts, function (Node $subNode) use($class, $hasTrait, $propertyName, $scope) : bool {
if ($subNode instanceof MethodCall || $subNode instanceof StaticCall || $subNode instanceof FuncCall) {
$this->decoratePropertyFetch($subNode, $scope);
return \false;
}
if ($subNode instanceof PropertyFetch) {
if ($this->isInAnonymous($subNode, $class, $hasTrait)) {
return \false;
}
return $this->isNamePropertyNameEquals($subNode, $propertyName, $class);
}
if ($subNode instanceof StaticPropertyFetch) {
return $this->nodeNameResolver->isName($subNode->name, $propertyName);
}
return \false;
});
return $propertyFetches;
}
private function decoratePropertyFetch(Node $node, Scope $scope) : void
{
if (!$node instanceof MethodCall && !$node instanceof StaticCall && !$node instanceof FuncCall) {
return;
}
if ($node->isFirstClassCallable()) {
return;
}
foreach ($node->getArgs() as $key => $arg) {
if (!$arg->value instanceof PropertyFetch && !$arg->value instanceof StaticPropertyFetch) {
continue;
}
if (!$this->isFoundByRefParam($node, $key, $scope)) {
continue;
}
$arg->value->setAttribute(AttributeKey::IS_USED_AS_ARG_BY_REF_VALUE, \true);
}
}
/**
* @param \PhpParser\Node\Expr\MethodCall|\PhpParser\Node\Expr\StaticCall|\PhpParser\Node\Expr\FuncCall $node
*/
private function isFoundByRefParam($node, int $key, Scope $scope) : bool
{
$functionLikeReflection = $this->reflectionResolver->resolveFunctionLikeReflectionFromCall($node);
if ($functionLikeReflection === null) {
return \false;
}
$parametersAcceptor = ParametersAcceptorSelectorVariantsWrapper::select($functionLikeReflection, $node, $scope);
$parameters = $parametersAcceptor->getParameters();
if (!isset($parameters[$key])) {
return \false;
}
return $parameters[$key]->passedByReference()->yes();
}
/**
* @param \PhpParser\Node\Stmt\Class_|\PhpParser\Node\Stmt\Trait_ $class
*/
private function isInAnonymous(PropertyFetch $propertyFetch, $class, bool $hasTrait) : bool
{
$classReflection = $this->reflectionResolver->resolveClassReflection($propertyFetch);
if (!$classReflection instanceof ClassReflection || !$classReflection->isClass()) {
return \false;
}
if ($classReflection->getName() === $this->nodeNameResolver->getName($class)) {
return \false;
}
return !$hasTrait;
}
/**
* @param \PhpParser\Node\Stmt\Class_|\PhpParser\Node\Stmt\Trait_ $class
*/
private function isNamePropertyNameEquals(PropertyFetch $propertyFetch, string $propertyName, $class) : bool
{
// early check if property fetch name is not equals with property name
// so next check is check var name and var type only
if (!$this->isLocalPropertyFetchByName($propertyFetch, $class, $propertyName)) {
return \false;
}
$propertyFetchVarType = $this->nodeTypeResolver->getType($propertyFetch->var);
if (!$propertyFetchVarType instanceof TypeWithClassName) {
return \false;
}
$propertyFetchVarTypeClassName = $propertyFetchVarType->getClassName();
$classLikeName = $this->nodeNameResolver->getName($class);
return $propertyFetchVarTypeClassName === $classLikeName;
}
/**
* @param \PhpParser\Node\Stmt\Property|\PhpParser\Node\Param $propertyOrPromotedParam
*/
private function resolvePropertyName($propertyOrPromotedParam) : ?string
{
if ($propertyOrPromotedParam instanceof Property) {
return $this->nodeNameResolver->getName($propertyOrPromotedParam->props[0]);
}
return $this->nodeNameResolver->getName($propertyOrPromotedParam->var);
}
}
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