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<?php
declare (strict_types=1);
namespace Rector\Core\Php\Regex;
use RectorPrefix202304\Nette\Utils\Strings;
use PhpParser\Node;
use PhpParser\Node\Arg;
use PhpParser\Node\Const_;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\Assign;
use PhpParser\Node\Expr\ClassConstFetch;
use PhpParser\Node\Expr\FuncCall;
use PhpParser\Node\Expr\StaticCall;
use PhpParser\Node\Expr\Variable;
use PhpParser\Node\Scalar\String_;
use PhpParser\Node\Stmt\ClassMethod;
use PHPStan\Type\ObjectType;
use Rector\Core\PhpParser\Comparing\NodeComparator;
use Rector\Core\PhpParser\Node\BetterNodeFinder;
use Rector\Core\PhpParser\NodeFinder\LocalConstantFinder;
use Rector\NodeNameResolver\NodeNameResolver;
use Rector\NodeTypeResolver\NodeTypeResolver;
final class RegexPatternArgumentManipulator
{
/**
* @var array<string, int>
*/
private const FUNCTIONS_WITH_PATTERNS_TO_ARGUMENT_POSITION = ['preg_match' => 0, 'preg_replace_callback_array' => 0, 'preg_replace_callback' => 0, 'preg_replace' => 0, 'preg_match_all' => 0, 'preg_split' => 0, 'preg_grep' => 0];
/**
* @var array<string, array<string, int>>
*/
private const STATIC_METHODS_WITH_PATTERNS_TO_ARGUMENT_POSITION = [Strings::class => ['match' => 1, 'matchAll' => 1, 'replace' => 1, 'split' => 1]];
/**
* @readonly
* @var \Rector\Core\PhpParser\Node\BetterNodeFinder
*/
private $betterNodeFinder;
/**
* @readonly
* @var \Rector\NodeNameResolver\NodeNameResolver
*/
private $nodeNameResolver;
/**
* @readonly
* @var \Rector\NodeTypeResolver\NodeTypeResolver
*/
private $nodeTypeResolver;
/**
* @readonly
* @var \Rector\Core\PhpParser\NodeFinder\LocalConstantFinder
*/
private $localConstantFinder;
/**
* @readonly
* @var \Rector\Core\PhpParser\Comparing\NodeComparator
*/
private $nodeComparator;
public function __construct(BetterNodeFinder $betterNodeFinder, NodeNameResolver $nodeNameResolver, NodeTypeResolver $nodeTypeResolver, LocalConstantFinder $localConstantFinder, NodeComparator $nodeComparator)
{
$this->betterNodeFinder = $betterNodeFinder;
$this->nodeNameResolver = $nodeNameResolver;
$this->nodeTypeResolver = $nodeTypeResolver;
$this->localConstantFinder = $localConstantFinder;
$this->nodeComparator = $nodeComparator;
}
/**
* @return String_[]
* @param \PhpParser\Node\Expr\FuncCall|\PhpParser\Node\Expr\StaticCall $call
*/
public function matchCallArgumentWithRegexPattern($call) : array
{
if ($call instanceof FuncCall) {
return $this->processFuncCall($call);
}
return $this->processStaticCall($call);
}
/**
* @return String_[]
*/
private function processFuncCall(FuncCall $funcCall) : array
{
foreach (self::FUNCTIONS_WITH_PATTERNS_TO_ARGUMENT_POSITION as $functionName => $argumentPosition) {
if (!$this->nodeNameResolver->isName($funcCall, $functionName)) {
continue;
}
if (!isset($funcCall->args[$argumentPosition])) {
return [];
}
if (!$funcCall->args[$argumentPosition] instanceof Arg) {
return [];
}
return $this->resolveArgumentValues($funcCall->args[$argumentPosition]->value);
}
return [];
}
/**
* @return String_[]
*/
private function processStaticCall(StaticCall $staticCall) : array
{
foreach (self::STATIC_METHODS_WITH_PATTERNS_TO_ARGUMENT_POSITION as $type => $methodNamesToArgumentPosition) {
if (!$this->nodeTypeResolver->isObjectType($staticCall->class, new ObjectType($type))) {
continue;
}
foreach ($methodNamesToArgumentPosition as $methodName => $argumentPosition) {
if (!$this->nodeNameResolver->isName($staticCall->name, $methodName)) {
continue;
}
if (!isset($staticCall->args[$argumentPosition])) {
return [];
}
if (!$staticCall->args[$argumentPosition] instanceof Arg) {
return [];
}
return $this->resolveArgumentValues($staticCall->args[$argumentPosition]->value);
}
}
return [];
}
/**
* @return String_[]
*/
private function resolveArgumentValues(Expr $expr) : array
{
if ($expr instanceof String_) {
return [$expr];
}
if ($expr instanceof Variable) {
$strings = [];
$assignNodes = $this->findAssignerForVariable($expr);
foreach ($assignNodes as $assignNode) {
if ($assignNode->expr instanceof String_) {
$strings[] = $assignNode->expr;
}
}
return $strings;
}
if ($expr instanceof ClassConstFetch) {
return $this->matchClassConstFetchStringValue($expr);
}
return [];
}
/**
* @return Assign[]
*/
private function findAssignerForVariable(Variable $variable) : array
{
$classMethod = $this->betterNodeFinder->findParentType($variable, ClassMethod::class);
if (!$classMethod instanceof ClassMethod) {
return [];
}
return $this->betterNodeFinder->find([$classMethod], function (Node $node) use($variable) : bool {
if (!$node instanceof Assign) {
return \false;
}
return $this->nodeComparator->areNodesEqual($node->var, $variable);
});
}
/**
* @return String_[]
*/
private function matchClassConstFetchStringValue(ClassConstFetch $classConstFetch) : array
{
$classConst = $this->localConstantFinder->match($classConstFetch);
if (!$classConst instanceof Const_) {
return [];
}
if ($classConst->value instanceof String_) {
return [$classConst->value];
}
return [];
}
}