>
*/
public function getNodeTypes() : array
{
return [FuncCall::class];
}
/**
* @param FuncCall $node
*/
public function refactor(Node $node) : ?Node
{
$this->nestingLevel = 0;
if (!$this->isName($node, self::DIRNAME)) {
return null;
}
$activeFuncCallNode = $node;
$lastFuncCallNode = $node;
while (($activeFuncCallNode = $this->matchNestedDirnameFuncCall($activeFuncCallNode)) instanceof FuncCall) {
$lastFuncCallNode = $activeFuncCallNode;
}
// nothing to improve
if ($this->shouldSkip()) {
return null;
}
$node->args[0] = $lastFuncCallNode->args[0];
$node->args[1] = new Arg(new LNumber($this->nestingLevel));
return $node;
}
public function provideMinPhpVersion() : int
{
return PhpVersionFeature::DIRNAME_LEVELS;
}
private function shouldSkip() : bool
{
return $this->nestingLevel < 2;
}
private function matchNestedDirnameFuncCall(FuncCall $funcCall) : ?FuncCall
{
if (!$this->isName($funcCall, self::DIRNAME)) {
return null;
}
if ($funcCall->isFirstClassCallable()) {
return null;
}
$args = $funcCall->getArgs();
if (\count($args) >= 3) {
return null;
}
// dirname($path, );
if (\count($args) === 2) {
if (!$args[1]->value instanceof LNumber) {
return null;
}
/** @var LNumber $levelNumber */
$levelNumber = $args[1]->value;
$this->nestingLevel += $levelNumber->value;
} else {
++$this->nestingLevel;
}
$nestedFuncCallNode = $args[0]->value;
if (!$nestedFuncCallNode instanceof FuncCall) {
return null;
}
if ($this->isName($nestedFuncCallNode, self::DIRNAME)) {
return $nestedFuncCallNode;
}
return null;
}
}