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<?php
declare (strict_types=1);
namespace Rector\Core\NodeManipulator;
use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\ArrayDimFetch;
use PhpParser\Node\Expr\Assign;
use PhpParser\Node\Expr\AssignOp;
use PhpParser\Node\Expr\FuncCall;
use PhpParser\Node\Expr\List_;
use PhpParser\Node\Expr\PostDec;
use PhpParser\Node\Expr\PostInc;
use PhpParser\Node\Expr\PreDec;
use PhpParser\Node\Expr\PreInc;
use PhpParser\Node\Expr\PropertyFetch;
use PhpParser\Node\Expr\StaticPropertyFetch;
use PhpParser\Node\FunctionLike;
use PhpParser\Node\Stmt\Expression;
use Rector\Core\NodeAnalyzer\PropertyFetchAnalyzer;
use Rector\Core\PhpParser\Comparing\NodeComparator;
use Rector\Core\PhpParser\Node\BetterNodeFinder;
use Rector\NodeNameResolver\NodeNameResolver;
use Rector\NodeTypeResolver\Node\AttributeKey;
use RectorPrefix20211231\Symplify\PackageBuilder\Php\TypeChecker;
final class AssignManipulator
{
/**
* @var array<class-string<Expr>>
*/
private const MODIFYING_NODE_TYPES = [\PhpParser\Node\Expr\AssignOp::class, \PhpParser\Node\Expr\PreDec::class, \PhpParser\Node\Expr\PostDec::class, \PhpParser\Node\Expr\PreInc::class, \PhpParser\Node\Expr\PostInc::class];
/**
* @readonly
* @var \Rector\NodeNameResolver\NodeNameResolver
*/
private $nodeNameResolver;
/**
* @readonly
* @var \Rector\Core\PhpParser\Comparing\NodeComparator
*/
private $nodeComparator;
/**
* @readonly
* @var \Rector\Core\PhpParser\Node\BetterNodeFinder
*/
private $betterNodeFinder;
/**
* @readonly
* @var \Rector\Core\NodeAnalyzer\PropertyFetchAnalyzer
*/
private $propertyFetchAnalyzer;
/**
* @readonly
* @var \Symplify\PackageBuilder\Php\TypeChecker
*/
private $typeChecker;
public function __construct(\Rector\NodeNameResolver\NodeNameResolver $nodeNameResolver, \Rector\Core\PhpParser\Comparing\NodeComparator $nodeComparator, \Rector\Core\PhpParser\Node\BetterNodeFinder $betterNodeFinder, \Rector\Core\NodeAnalyzer\PropertyFetchAnalyzer $propertyFetchAnalyzer, \RectorPrefix20211231\Symplify\PackageBuilder\Php\TypeChecker $typeChecker)
{
$this->nodeNameResolver = $nodeNameResolver;
$this->nodeComparator = $nodeComparator;
$this->betterNodeFinder = $betterNodeFinder;
$this->propertyFetchAnalyzer = $propertyFetchAnalyzer;
$this->typeChecker = $typeChecker;
}
/**
* Matches:
* each() = [1, 2];
*/
public function isListToEachAssign(\PhpParser\Node\Expr\Assign $assign) : bool
{
if (!$assign->expr instanceof \PhpParser\Node\Expr\FuncCall) {
return \false;
}
if (!$assign->var instanceof \PhpParser\Node\Expr\List_) {
return \false;
}
return $this->nodeNameResolver->isName($assign->expr, 'each');
}
public function isLeftPartOfAssign(\PhpParser\Node $node) : bool
{
$parent = $node->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::PARENT_NODE);
if ($parent instanceof \PhpParser\Node\Expr\Assign && $this->nodeComparator->areNodesEqual($parent->var, $node)) {
return \true;
}
if ($parent !== null && $this->typeChecker->isInstanceOf($parent, self::MODIFYING_NODE_TYPES)) {
return \true;
}
// traverse up to array dim fetches
if ($parent instanceof \PhpParser\Node\Expr\ArrayDimFetch) {
$previousParent = $parent;
while ($parent instanceof \PhpParser\Node\Expr\ArrayDimFetch) {
$previousParent = $parent;
$parent = $parent->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::PARENT_NODE);
}
if ($parent instanceof \PhpParser\Node\Expr\Assign) {
return $parent->var === $previousParent;
}
}
return \false;
}
public function isNodePartOfAssign(\PhpParser\Node $node) : bool
{
$previousNode = $node;
$parentNode = $node->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::PARENT_NODE);
while ($parentNode !== null && !$parentNode instanceof \PhpParser\Node\Stmt\Expression) {
if ($parentNode instanceof \PhpParser\Node\Expr\Assign && $this->nodeComparator->areNodesEqual($parentNode->var, $previousNode)) {
return \true;
}
$previousNode = $parentNode;
$parentNode = $parentNode->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::PARENT_NODE);
}
return \false;
}
/**
* @return array<PropertyFetch|StaticPropertyFetch>
*/
public function resolveAssignsToLocalPropertyFetches(\PhpParser\Node\FunctionLike $functionLike) : array
{
return $this->betterNodeFinder->find((array) $functionLike->getStmts(), function (\PhpParser\Node $node) : bool {
if (!$this->propertyFetchAnalyzer->isLocalPropertyFetch($node)) {
return \false;
}
return $this->isLeftPartOfAssign($node);
});
}
}
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