public function parseMultipart($onPart = null, $onData = null, $onEndPart = null)
 {
     $_g = $this;
     if (!$this->isMultipart()) {
         return ufront_core_SurpriseTools::success();
     }
     if ($this->_parsed) {
         throw new HException(ufront_web_HttpError::internalServerError("parseMultipart() has been called more than once.", null, _hx_anonymous(array("fileName" => "HttpRequest.hx", "lineNumber" => 93, "className" => "sys.ufront.web.context.HttpRequest", "methodName" => "parseMultipart"))));
     }
     $this->_parsed = true;
     if ($onPart === null) {
         $onPart = array(new _hx_lambda(array(&$_g, &$onData, &$onEndPart, &$onPart), "sys_ufront_web_context_HttpRequest_0"), 'execute');
     }
     if ($onData === null) {
         $onData = array(new _hx_lambda(array(&$_g, &$onData, &$onEndPart, &$onPart), "sys_ufront_web_context_HttpRequest_1"), 'execute');
     }
     if ($onEndPart === null) {
         $onEndPart = array(new _hx_lambda(array(&$_g, &$onData, &$onEndPart, &$onPart), "sys_ufront_web_context_HttpRequest_2"), 'execute');
     }
     $this->post = new haxe_ds_StringMap();
     $noParts = true;
     $isFile = false;
     $partName = null;
     $fileName = null;
     $currentContent = null;
     $callbackFutures = new _hx_array(array());
     $errors = new _hx_array(array());
     $processCallbackResult = array(new _hx_lambda(array(&$_g, &$callbackFutures, &$currentContent, &$errors, &$fileName, &$isFile, &$noParts, &$onData, &$onEndPart, &$onPart, &$partName), "sys_ufront_web_context_HttpRequest_3"), 'execute');
     $doEndOfPart = array(new _hx_lambda(array(&$_g, &$callbackFutures, &$currentContent, &$errors, &$fileName, &$isFile, &$noParts, &$onData, &$onEndPart, &$onPart, &$partName, &$processCallbackResult), "sys_ufront_web_context_HttpRequest_4"), 'execute');
     $doPart = array(new _hx_lambda(array(&$_g, &$callbackFutures, &$currentContent, &$doEndOfPart, &$errors, &$fileName, &$isFile, &$noParts, &$onData, &$onEndPart, &$onPart, &$partName, &$processCallbackResult), "sys_ufront_web_context_HttpRequest_5"), 'execute');
     $doData = array(new _hx_lambda(array(&$_g, &$callbackFutures, &$currentContent, &$doEndOfPart, &$doPart, &$errors, &$fileName, &$isFile, &$noParts, &$onData, &$onEndPart, &$onPart, &$partName, &$processCallbackResult), "sys_ufront_web_context_HttpRequest_6"), 'execute');
     try {
         sys_ufront_web_context__HttpRequest_WebOverride::parseMultipart($doPart, $doData);
     } catch (Exception $__hx__e) {
         $_ex_ = $__hx__e instanceof HException ? $__hx__e->e : $__hx__e;
         $e = $_ex_;
         $stack = haxe_CallStack::toString(haxe_CallStack::exceptionStack());
         $err1 = "Failed to parse multipart data: " . Std::string($e) . "\n" . _hx_string_or_null($stack);
         $errors->push($err1);
     }
     if ($noParts === false) {
         call_user_func($doEndOfPart);
     }
     if ($callbackFutures->length > 0) {
         return tink_core__Future_Future_Impl_::flatMap(tink_core__Future_Future_Impl_::ofMany($callbackFutures, null), array(new _hx_lambda(array(&$_g, &$callbackFutures, &$currentContent, &$doData, &$doEndOfPart, &$doPart, &$e, &$errors, &$fileName, &$isFile, &$noParts, &$onData, &$onEndPart, &$onPart, &$partName, &$processCallbackResult), "sys_ufront_web_context_HttpRequest_7"), 'execute'), null);
     } else {
         $data5 = tink_core_Outcome::Success(tink_core_Noise::$Noise);
         return tink_core__Future_Future_Impl_::sync($data5);
     }
 }
 static function _flatMap($f, $map)
 {
     return tink_core__Future_Future_Impl_::flatMap($f, $map, null);
 }