%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
declare (strict_types=1);
namespace Rector\Core\NodeAnalyzer;
use PhpParser\Node;
use PhpParser\Node\Expr\Assign;
use PhpParser\Node\Expr\MethodCall;
use PhpParser\Node\Expr\PropertyFetch;
use PhpParser\Node\Expr\StaticCall;
use PhpParser\Node\Expr\StaticPropertyFetch;
use PhpParser\Node\Expr\Variable;
use PhpParser\Node\Name;
use PhpParser\Node\Stmt\Class_;
use PhpParser\Node\Stmt\ClassLike;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\Node\Stmt\Expression;
use PhpParser\Node\Stmt\Trait_;
use PHPStan\Type\ObjectType;
use Rector\Core\Enum\ObjectReference;
use Rector\Core\PhpParser\AstResolver;
use Rector\Core\PhpParser\Node\BetterNodeFinder;
use Rector\Core\ValueObject\MethodName;
use Rector\NodeNameResolver\NodeNameResolver;
use Rector\PhpDocParser\NodeTraverser\SimpleCallableNodeTraverser;
final class PropertyFetchAnalyzer
{
/**
* @var string
*/
private const THIS = 'this';
/**
* @readonly
* @var \Rector\NodeNameResolver\NodeNameResolver
*/
private $nodeNameResolver;
/**
* @readonly
* @var \Rector\Core\PhpParser\Node\BetterNodeFinder
*/
private $betterNodeFinder;
/**
* @readonly
* @var \Rector\Core\PhpParser\AstResolver
*/
private $astResolver;
/**
* @readonly
* @var \Rector\PhpDocParser\NodeTraverser\SimpleCallableNodeTraverser
*/
private $simpleCallableNodeTraverser;
public function __construct(NodeNameResolver $nodeNameResolver, BetterNodeFinder $betterNodeFinder, AstResolver $astResolver, SimpleCallableNodeTraverser $simpleCallableNodeTraverser)
{
$this->nodeNameResolver = $nodeNameResolver;
$this->betterNodeFinder = $betterNodeFinder;
$this->astResolver = $astResolver;
$this->simpleCallableNodeTraverser = $simpleCallableNodeTraverser;
}
public function isLocalPropertyFetch(Node $node) : bool
{
if ($node instanceof PropertyFetch) {
if (!$node->var instanceof Variable) {
return \false;
}
return $this->nodeNameResolver->isName($node->var, self::THIS);
}
if ($node instanceof StaticPropertyFetch) {
if (!$node->class instanceof Name) {
return \false;
}
return $this->nodeNameResolver->isNames($node->class, [ObjectReference::SELF, ObjectReference::STATIC]);
}
return \false;
}
public function isLocalPropertyFetchName(Node $node, string $desiredPropertyName) : bool
{
if (!$this->isLocalPropertyFetch($node)) {
return \false;
}
/** @var PropertyFetch|StaticPropertyFetch $node */
return $this->nodeNameResolver->isName($node->name, $desiredPropertyName);
}
public function countLocalPropertyFetchName(Class_ $class, string $propertyName) : int
{
$total = 0;
$this->simpleCallableNodeTraverser->traverseNodesWithCallable($class->stmts, function (Node $subNode) use($class, $propertyName, &$total) : ?Node {
if (!$this->isLocalPropertyFetchName($subNode, $propertyName)) {
return null;
}
$parentClassLike = $this->betterNodeFinder->findParentType($subNode, ClassLike::class);
// property fetch in Trait cannot get parent ClassLike
if (!$parentClassLike instanceof ClassLike) {
++$total;
}
if ($parentClassLike === $class) {
++$total;
}
return $subNode;
});
return $total;
}
public function containsLocalPropertyFetchName(Trait_ $trait, string $propertyName) : bool
{
return (bool) $this->betterNodeFinder->findFirst($trait, function (Node $node) use($propertyName) : bool {
return $this->isLocalPropertyFetchName($node, $propertyName);
});
}
public function isPropertyToSelf(PropertyFetch $propertyFetch) : bool
{
if (!$this->nodeNameResolver->isName($propertyFetch->var, self::THIS)) {
return \false;
}
$class = $this->betterNodeFinder->findParentType($propertyFetch, Class_::class);
if (!$class instanceof Class_) {
return \false;
}
foreach ($class->getProperties() as $property) {
if (!$this->nodeNameResolver->areNamesEqual($property->props[0], $propertyFetch)) {
continue;
}
return \true;
}
return \false;
}
public function isPropertyFetch(Node $node) : bool
{
if ($node instanceof PropertyFetch) {
return \true;
}
return $node instanceof StaticPropertyFetch;
}
/**
* Matches:
* "$this->someValue = $<variableName>;"
*/
public function isVariableAssignToThisPropertyFetch(Assign $assign, string $variableName) : bool
{
if (!$assign->expr instanceof Variable) {
return \false;
}
if (!$this->nodeNameResolver->isName($assign->expr, $variableName)) {
return \false;
}
return $this->isLocalPropertyFetch($assign->var);
}
public function isFilledViaMethodCallInConstructStmts(ClassLike $classLike, string $propertyName) : bool
{
$classMethod = $classLike->getMethod(MethodName::CONSTRUCT);
if (!$classMethod instanceof ClassMethod) {
return \false;
}
$className = (string) $this->nodeNameResolver->getName($classLike);
$stmts = (array) $classMethod->stmts;
foreach ($stmts as $stmt) {
if (!$stmt instanceof Expression) {
continue;
}
if (!$stmt->expr instanceof MethodCall && !$stmt->expr instanceof StaticCall) {
continue;
}
$callerClassMethod = $this->astResolver->resolveClassMethodFromCall($stmt->expr);
if (!$callerClassMethod instanceof ClassMethod) {
continue;
}
$callerClass = $this->betterNodeFinder->findParentType($callerClassMethod, Class_::class);
if (!$callerClass instanceof Class_) {
continue;
}
$callerClassName = (string) $this->nodeNameResolver->getName($callerClass);
$isFound = $this->isPropertyAssignFoundInClassMethod($classLike, $className, $callerClassName, $callerClassMethod, $propertyName);
if ($isFound) {
return \true;
}
}
return \false;
}
/**
* @param string[] $propertyNames
*/
public function isLocalPropertyOfNames(Node $node, array $propertyNames) : bool
{
if (!$this->isLocalPropertyFetch($node)) {
return \false;
}
/** @var PropertyFetch $node */
return $this->nodeNameResolver->isNames($node->name, $propertyNames);
}
private function isPropertyAssignFoundInClassMethod(ClassLike $classLike, string $className, string $callerClassName, ClassMethod $classMethod, string $propertyName) : bool
{
if ($className !== $callerClassName && !$classLike instanceof Trait_) {
$objectType = new ObjectType($className);
$callerObjectType = new ObjectType($callerClassName);
if (!$callerObjectType->isSuperTypeOf($objectType)->yes()) {
return \false;
}
}
foreach ((array) $classMethod->stmts as $stmt) {
if (!$stmt instanceof Expression) {
continue;
}
if (!$stmt->expr instanceof Assign) {
continue;
}
if ($this->isLocalPropertyFetchName($stmt->expr->var, $propertyName)) {
return \true;
}
}
return \false;
}
}
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