$stmts * @return array a list of return types */ public static function getReturnTypes(array $stmts, $collapse_types = false) { $return_types = []; foreach ($stmts as $stmt) { if ($stmt instanceof PhpParser\Node\Stmt\Return_) { $return_types = array_merge( isset($stmt->inferredType) ? $stmt->inferredType->types : [Type::getMixed(false)], $return_types ); break; } elseif ($stmt instanceof PhpParser\Node\Stmt\If_) { $return_types = array_merge($return_types, self::getReturnTypes($stmt->stmts)); foreach ($stmt->elseifs as $elseif) { $return_types = array_merge($return_types, self::getReturnTypes($elseif->stmts)); } if ($stmt->else) { $return_types = array_merge($return_types, self::getReturnTypes($stmt->else->stmts)); } } elseif ($stmt instanceof PhpParser\Node\Stmt\TryCatch) { $return_types = array_merge($return_types, self::getReturnTypes($stmt->stmts)); foreach ($stmt->catches as $catch) { $return_types = array_merge($return_types, self::getReturnTypes($catch->stmts)); } if ($stmt->finallyStmts) { $return_types = array_merge($return_types, self::getReturnTypes($stmt->finallyStmts)); } } elseif ($stmt instanceof PhpParser\Node\Stmt\For_) { $return_types = array_merge($return_types, self::getReturnTypes($stmt->stmts)); } elseif ($stmt instanceof PhpParser\Node\Stmt\Foreach_) { $return_types = array_merge($return_types, self::getReturnTypes($stmt->stmts)); } elseif ($stmt instanceof PhpParser\Node\Stmt\While_) { $return_types = array_merge($return_types, self::getReturnTypes($stmt->stmts)); } elseif ($stmt instanceof PhpParser\Node\Stmt\Do_) { $return_types = array_merge($return_types, self::getReturnTypes($stmt->stmts)); } elseif ($stmt instanceof PhpParser\Node\Stmt\Switch_) { foreach ($stmt->cases as $case) { $return_types = array_merge($return_types, self::getReturnTypes($case->stmts)); } } } return $return_types; } }