> */ 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; } }