From 28014abf13ca64031b8b84dcf585ec4569881ab0 Mon Sep 17 00:00:00 2001 From: Stefan Radomski Date: Sat, 30 Mar 2013 17:08:37 +0100 Subject: Various bug fixes - Removed scxml-test-framework related file - Array operator with V8NodeList - _event.data as DOM if content is XML --- apps/mmi-browser.cpp | 4 +- contrib/dom/idl/NodeList.idl | 4 +- src/bindings/swig/php/uscxml.i | 1 + src/uscxml/Interpreter.cpp | 125 +++++++++---- src/uscxml/Interpreter.h | 12 +- src/uscxml/Message.cpp | 2 +- src/uscxml/Message.h | 200 ++++++++++++++------ src/uscxml/interpreter/InterpreterDraft6.cpp | 28 +-- src/uscxml/interpreter/InterpreterDraft6.h | 6 +- src/uscxml/interpreter/InterpreterDraft7.cpp | 100 +++++----- src/uscxml/interpreter/InterpreterDraft7.h | 16 +- .../datamodel/ecmascript/v8/V8DataModel.cpp | 126 ++++++++----- .../plugins/datamodel/ecmascript/v8/V8DataModel.h | 2 + .../datamodel/ecmascript/v8/dom/V8NodeList.h | 2 + .../ecmascript/v8/dom/V8NodeListCustom.cpp | 52 ++++++ test/run-scxml-test-framework.sh | 14 +- test/samples/w3c/txml/test144.txml | 27 --- test/samples/w3c/txml/test147.txml | 34 ---- test/samples/w3c/txml/test148.txml | 35 ---- test/samples/w3c/txml/test149.txml | 28 --- test/samples/w3c/txml/test150.txml | 45 ----- test/samples/w3c/txml/test151.txml | 45 ----- test/samples/w3c/txml/test152.txml | 52 ------ test/samples/w3c/txml/test153.txml | 39 ---- test/samples/w3c/txml/test155.txml | 30 --- test/samples/w3c/txml/test156.txml | 32 ---- test/samples/w3c/txml/test158.txml | 27 --- test/samples/w3c/txml/test159.txml | 24 --- test/samples/w3c/txml/test172.txml | 23 --- test/samples/w3c/txml/test173.txml | 24 --- test/samples/w3c/txml/test174.txml | 24 --- test/samples/w3c/txml/test175.txml | 30 --- test/samples/w3c/txml/test176.txml | 33 ---- test/samples/w3c/txml/test178.txml | 31 ---- test/samples/w3c/txml/test179.txml | 21 --- test/samples/w3c/txml/test183.txml | 24 --- test/samples/w3c/txml/test185.txml | 26 --- 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+57,7 @@ int main(int argc, char** argv) { } bool verbose = false; - + #ifndef _WIN32 opterr = 0; #endif @@ -95,7 +95,7 @@ int main(int argc, char** argv) { VerboseMonitor* vm = new VerboseMonitor(); interpreter->addMonitor(vm); } - + interpreter->start(); while(interpreter->runOnMainThread(25)); delete interpreter; diff --git a/contrib/dom/idl/NodeList.idl b/contrib/dom/idl/NodeList.idl index 9d1aa2c..cef2f90 100644 --- a/contrib/dom/idl/NodeList.idl +++ b/contrib/dom/idl/NodeList.idl @@ -1,4 +1,6 @@ -interface NodeList { +[ + CustomIndexedGetter +] interface NodeList { Node item(in unsigned long index); readonly attribute unsigned long length; }; diff --git a/src/bindings/swig/php/uscxml.i b/src/bindings/swig/php/uscxml.i index 6180d05..ba58678 100644 --- a/src/bindings/swig/php/uscxml.i +++ b/src/bindings/swig/php/uscxml.i @@ -31,6 +31,7 @@ void*** tsrm_ls; %feature("director") uscxml::InterpreterMonitor; %ignore uscxml::NumAttr; +%ignore uscxml::SCXMLParser; //*********************************************** // Parse the header file to generate wrappers diff --git a/src/uscxml/Interpreter.cpp b/src/uscxml/Interpreter.cpp index e59ef5f..089406d 100644 --- a/src/uscxml/Interpreter.cpp +++ b/src/uscxml/Interpreter.cpp @@ -108,7 +108,7 @@ Interpreter* Interpreter::fromURI(const std::string& uri) { Interpreter* Interpreter::fromInputSource(Arabica::SAX::InputSource& source) { Interpreter* interpreter = new InterpreterDraft6(); - + SCXMLParser* parser = new SCXMLParser(interpreter); if(!parser->parse(source) || !parser->getDocument().hasChildNodes()) { if(parser->_errorHandler.errorsReported()) { @@ -260,24 +260,24 @@ void Interpreter::init() { NodeList scxmls = _document.getElementsByTagNameNS(_nsURL, "scxml"); if (scxmls.getLength() > 0) { _scxml = (Arabica::DOM::Element)scxmls.item(0); - + // setup xpath and check that it works _xpath.setNamespaceContext(_nsContext); Arabica::XPath::NodeSet scxmls = _xpath.evaluate("/" + _xpathPrefix + "scxml", _document).asNodeSet(); assert(scxmls.size() > 0); assert(scxmls[0] == _scxml); - + if (_name.length() == 0) _name = (HAS_ATTR(_scxml, "name") ? ATTR(_scxml, "name") : getUUID()); - + normalize(_document); - + if (_capabilities & CAN_GENERIC_HTTP) _httpServlet = new InterpreterServlet(this); - + _sendQueue = new DelayedEventQueue(); _sendQueue->start(); - + } else { LOG(ERROR) << "Cannot find SCXML element" << std::endl; } @@ -552,6 +552,7 @@ void Interpreter::send(const Arabica::DOM::Node& element) { if (contents.size() > 0) { if (HAS_ATTR(contents[0], "expr")) { if (_dataModel) { + /// this is out of spec std::string contentValue = _dataModel.evalAsString(ATTR(contents[0], "expr")); sendReq.content = contentValue; // sendReq.data.atom = contentValue; @@ -560,9 +561,50 @@ void Interpreter::send(const Arabica::DOM::Node& element) { LOG(ERROR) << "content element has expr attribute but no datamodel is specified."; } } else if (contents[0].hasChildNodes()) { - sendReq.content = contents[0].getFirstChild().getNodeValue(); -// sendReq.data.atom = sendReq.content; -// sendReq.data.type = Data::VERBATIM; + bool presentAsDOM = false; + NodeList contentChilds = contents[0].getChildNodes(); + for (int i = 0; i < contentChilds.getLength(); i++) { + if (contentChilds.item(i).getNodeType() == Node_base::ELEMENT_NODE) { + presentAsDOM = true; + break; + } + } + if (presentAsDOM) { + // use the whole dom + Arabica::DOM::DOMImplementation domFactory = Arabica::SimpleDOM::DOMImplementation::getDOMImplementation(); + sendReq.dom = domFactory.createDocument(contents[0].getNamespaceURI(), "", 0); + for (int i = 0; i < contentChilds.getLength(); i++) { + try { + Node newNode = sendReq.dom.importNode(contentChilds.item(i), true); + sendReq.dom.appendChild(newNode); + } catch (...) { + + } + } + std::cout << sendReq.dom << std::endl; + } else { + Node textChild = contents[0].getFirstChild(); + while(textChild && textChild.getNodeType() != Node_base::TEXT_NODE) { + textChild = textChild.getNextSibling(); + } + if (textChild && textChild.getNodeType() == Node_base::TEXT_NODE) { + /// create space normalized string + std::istringstream iss(contents[0].getFirstChild().getNodeValue()); + std::stringstream content; + std::string seperator; + do { + std::string token; + iss >> token; + if (token.length() > 0) { + content << seperator << token; + seperator = " "; + } + } while (iss); + sendReq.content = content.str(); + } else { + LOG(ERROR) << "content element has neither text nor element children."; + } + } } else { LOG(ERROR) << "content element does not specify any content."; } @@ -587,6 +629,7 @@ void Interpreter::delayedSend(void* userdata, std::string eventName) { Interpreter* INSTANCE = data->first; SendRequest sendReq = data->second; + // see http://www.w3.org/TR/scxml/#SendTargets if (boost::iequals(sendReq.target, "#_parent")) { // send to parent scxml session if (INSTANCE->_parentQueue != NULL) { @@ -611,7 +654,12 @@ void Interpreter::delayedSend(void* userdata, std::string eventName) { LOG(ERROR) << "Can not send to invoked component '" << invokeId << "', no such invokeId" << std::endl; } } else if (sendReq.target.length() == 0) { - INSTANCE->receive(sendReq); + /** + * If neither the 'target' nor the 'targetexpr' attribute is specified, the + * SCXML Processor must add the event will be added to the external event + * queue of the sending session. + */ + INSTANCE->_externalQueue.push(sendReq); } else { IOProcessor ioProc = INSTANCE->getIOProcessor(sendReq.type); if (ioProc) { @@ -628,7 +676,11 @@ void Interpreter::delayedSend(void* userdata, std::string eventName) { void Interpreter::invoke(const Arabica::DOM::Node& element) { InvokeRequest invokeReq; - invokeReq.dom = element; + + Arabica::DOM::DOMImplementation domFactory = Arabica::SimpleDOM::DOMImplementation::getDOMImplementation(); + invokeReq.dom = domFactory.createDocument(element.getNamespaceURI(), "", 0); + Node newNode = invokeReq.dom.importNode(element, true); + invokeReq.dom.appendChild(newNode); try { // type @@ -891,7 +943,7 @@ void Interpreter::executeContent(const Arabica::DOM::Node& content) if (childs.item(i).getNodeType() != Node_base::ELEMENT_NODE) continue; if (boost::iequals(TAGNAME(childs.item(i)), _xmlNSPrefix + "elseif") || - boost::iequals(TAGNAME(childs.item(i)), _xmlNSPrefix + "else")) { + boost::iequals(TAGNAME(childs.item(i)), _xmlNSPrefix + "else")) { if (blockIsTrue) { // last block was true, break here break; @@ -917,25 +969,34 @@ void Interpreter::executeContent(const Arabica::DOM::Node& content) std::string array = ATTR(content, "array"); std::string item = ATTR(content, "item"); std::string index = (HAS_ATTR(content, "index") ? ATTR(content, "index") : ""); - uint32_t iterations = _dataModel.getLength(array); - _dataModel.pushContext(); // copy old and enter new context - for (uint32_t iteration = 0; iteration < iterations; iteration++) { - { - // assign array element to item - std::stringstream ss; - ss << array << "[" << iteration << "]"; - _dataModel.assign(item, ss.str()); - } - if (index.length() > 0) { - // assign iteration element to index - std::stringstream ss; - ss << iteration; - _dataModel.assign(index,ss.str()); + uint32_t iterations = 0; + try { + iterations = _dataModel.getLength(array); + try { + _dataModel.pushContext(); // copy old and enter new context + for (uint32_t iteration = 0; iteration < iterations; iteration++) { + { + // assign array element to item + std::stringstream ss; + ss << array << "[" << iteration << "]"; + _dataModel.assign(item, ss.str()); + } + if (index.length() > 0) { + // assign iteration element to index + std::stringstream ss; + ss << iteration; + _dataModel.assign(index,ss.str()); + } + if (content.hasChildNodes()) + executeContent(content.getChildNodes()); + } + _dataModel.popContext(); // leave stacked context + } catch (Event e) { + LOG(ERROR) << "Syntax error in foreach element:" << std::endl << e << std::endl; } - if (content.hasChildNodes()) - executeContent(content.getChildNodes()); + } catch (Event e) { + LOG(ERROR) << "Syntax error in array attribute of foreach element:" << std::endl << e << std::endl; } - _dataModel.popContext(); // leave stacked context } else { LOG(ERROR) << "Expected array and item attributes with foreach element!" << std::endl; } @@ -1225,7 +1286,7 @@ Arabica::XPath::NodeSet Interpreter::getInitialStates(Arabica::DOM: assert(isCompound(state) || isParallel(state)); Arabica::XPath::NodeSet initialStates; - + // initial attribute at element Arabica::DOM::Element stateElem = (Arabica::DOM::Element)state; if (stateElem.hasAttribute("initial")) { @@ -1233,7 +1294,7 @@ Arabica::XPath::NodeSet Interpreter::getInitialStates(Arabica::DOM: } Arabica::XPath::NodeSet initStates; - + // initial element as child - but not the implicit generated one NodeSet initElems = filterChildElements(_xmlNSPrefix + "initial", state); if(initElems.size() == 1 && !boost::iequals(ATTR(initElems[0], "generated"), "true")) { diff --git a/src/uscxml/Interpreter.h b/src/uscxml/Interpreter.h index 353233d..5d45e4c 100644 --- a/src/uscxml/Interpreter.h +++ b/src/uscxml/Interpreter.h @@ -77,7 +77,7 @@ public: Arabica::SAX::CatchErrorHandler _errorHandler; Interpreter* _interpreter; }; - + class Interpreter { public: enum Binding { @@ -176,10 +176,10 @@ public: void setConfiguration(const std::vector& states) { _userDefinedStartConfiguration = states; } - + Arabica::DOM::Node getState(const std::string& stateId); Arabica::XPath::NodeSet getStates(const std::vector& stateIds); - + Arabica::DOM::Document& getDocument() { return _document; } @@ -213,7 +213,7 @@ public: static bool isParallel(const Arabica::DOM::Node& state); static bool isCompound(const Arabica::DOM::Node& state); static bool isDescendant(const Arabica::DOM::Node& s1, const Arabica::DOM::Node& s2); - + static std::vector tokenizeIdRefs(const std::string& idRefs); bool isInitial(const Arabica::DOM::Node& state); @@ -256,7 +256,7 @@ protected: Arabica::XPath::NodeSet _configuration; Arabica::XPath::NodeSet _statesToInvoke; std::vector _userDefinedStartConfiguration; - + DataModel _dataModel; std::map > _historyValue; @@ -309,7 +309,7 @@ protected: /// TODO: We need to remember to adapt them when the DOM is operated upon std::map > _cachedStates; std::map _cachedURLs; - + friend class SCXMLParser; }; diff --git a/src/uscxml/Message.cpp b/src/uscxml/Message.cpp index 845118b..3ada20c 100644 --- a/src/uscxml/Message.cpp +++ b/src/uscxml/Message.cpp @@ -182,7 +182,7 @@ Data Data::fromJSON(const std::string& jsonString) { if (jsonString.length() == 0) return data; - + jsmn_parser p; jsmntok_t* t = NULL; diff --git a/src/uscxml/Message.h b/src/uscxml/Message.h index 2a49264..176ae86 100644 --- a/src/uscxml/Message.h +++ b/src/uscxml/Message.h @@ -40,19 +40,35 @@ public: return ss.str(); } - std::map getCompund() { return compound; } - void setCompound(const std::map& compound) { this->compound = compound; } + std::map getCompund() { + return compound; + } + void setCompound(const std::map& compound) { + this->compound = compound; + } - std::list getArray() { return array; } - void setArray(const std::list& array) { this->array = array; } + std::list getArray() { + return array; + } + void setArray(const std::list& array) { + this->array = array; + } + + std::string getAtom() { + return atom; + } + void setAtom(const std::string& atom) { + this->atom = atom; + } - std::string getAtom() { return atom; } - void setAtom(const std::string& atom) { this->atom = atom; } + Type getType() { + return type; + } + void setType(const Type type) { + this->type = type; + } - Type getType() { return type; } - void setType(const Type type) { this->type = type; } - #ifdef SWIGIMPORTED protected: #endif @@ -84,29 +100,68 @@ public: return this < &other; } - std::string getName() { return name; } - void setName(const std::string& name) { this->name = name; } + std::string getName() { + return name; + } + void setName(const std::string& name) { + this->name = name; + } + + Type getType() { + return type; + } + void setType(const Type type) { + this->type = type; + } - Type getType() { return type; } - void setType(const Type type) { this->type = type; } + std::string getOrigin() { + return origin; + } + void setOrigin(const std::string& origin) { + this->origin = origin; + } - std::string getOrigin() { return origin; } - void setOrigin(const std::string& origin) { this->origin = origin; } + std::string getOriginType() { + return origintype; + } + void setOriginType(const std::string& originType) { + this->origintype = originType; + } - std::string getOriginType() { return origintype; } - void setOriginType(const std::string& originType) { this->origintype = originType; } + Arabica::DOM::Document getDOM() { + return dom; + } + void setDOM(const Arabica::DOM::Document& dom) { + this->dom = dom; + } - Arabica::DOM::Node getDOM() { return dom; } - void setDOM(const Arabica::DOM::Node& dom) { this->dom = dom; } + std::string getContent() { + return content; + } + void setContent(const std::string& content) { + this->content = content; + } - std::string getSendId() { return sendid; } - void setSendId(const std::string& sendId) { this->sendid = sendId; } + std::string getSendId() { + return sendid; + } + void setSendId(const std::string& sendId) { + this->sendid = sendId; + } - std::string getInvokeId() { return invokeid; } - void setInvokeId(const std::string& invokeId) { this->invokeid = invokeId; } + std::string getInvokeId() { + return invokeid; + } + void setInvokeId(const std::string& invokeId) { + this->invokeid = invokeId; + } - Data getData() { return data; } - void setData(const Data& invokeId) { this->data = data; } + Data getData() { + return data; + } + void setData(const Data& invokeId) { + this->data = data; + } static Event fromXML(const std::string& xmlString); Arabica::DOM::Document toDocument(); @@ -124,10 +179,11 @@ protected: Type type; std::string origin; std::string origintype; - Arabica::DOM::Node dom; + Arabica::DOM::Document dom; std::string sendid; std::string invokeid; Data data; + std::string content; #ifndef SWIG friend std::ostream& operator<< (std::ostream& os, const Event& event); @@ -138,22 +194,33 @@ class InvokeRequest : public Event { public: InvokeRequest(Event event) : Event(event) {} InvokeRequest() {} - - std::string getType() { return type; } - void setType(const std::string& type) { this->type = type; } - std::string getSource() { return src; } - void setSource(const std::string& src) { this->src = src; } + std::string getType() { + return type; + } + void setType(const std::string& type) { + this->type = type; + } - std::string getContent() { return content; } - void setContent(const std::string& content) { this->content = content; } - - bool isAutoForwarded() { return autoForward; } - void setAutoForwarded(bool autoForward) { this->autoForward = autoForward; } + std::string getSource() { + return src; + } + void setSource(const std::string& src) { + this->src = src; + } + + bool isAutoForwarded() { + return autoForward; + } + void setAutoForwarded(bool autoForward) { + this->autoForward = autoForward; + } #ifdef SWIG /// TODO: Do we want to set namelist and params as well? - std::map getNameList() { return namelist; } + std::map getNameList() { + return namelist; + } const std::vector getNameListKeys() { std::set keys; @@ -175,7 +242,7 @@ public: } return paramsMap; } - + const std::vector getParamKeys() { std::set keys; params_t::iterator paramIter = params.begin(); @@ -185,10 +252,14 @@ public: } return std::vector(keys.begin(), keys.end()); } - + #else - std::map& getNameList() { return namelist; } - std::multimap& getParams() { return params; } + std::map& getNameList() { + return namelist; + } + std::multimap& getParams() { + return params; + } #endif static InvokeRequest fromXML(const std::string& xmlString); @@ -204,7 +275,6 @@ protected: #endif std::string type; std::string src; - std::string content; bool autoForward; std::map namelist; std::multimap params; @@ -223,21 +293,32 @@ public: SendRequest() {} SendRequest(Event event) : Event(event) {} - std::string getTarget() { return target; } - void setTarget(const std::string& target) { this->target = target; } + std::string getTarget() { + return target; + } + void setTarget(const std::string& target) { + this->target = target; + } - std::string getType() { return type; } - void setType(const std::string& type) { this->type = type; } + std::string getType() { + return type; + } + void setType(const std::string& type) { + this->type = type; + } - uint32_t getDelayMs() { return delayMs; } - void setDelayMs(uint32_t delayMs) { this->delayMs = delayMs; } - - std::string getContent() { return content; } - void setContent(const std::string& content) { this->content = content; } + uint32_t getDelayMs() { + return delayMs; + } + void setDelayMs(uint32_t delayMs) { + this->delayMs = delayMs; + } #ifdef SWIG /// TODO: Do we want to set namelist and params as well? - std::map getNameList() { return namelist; } + std::map getNameList() { + return namelist; + } const std::vector getNameListKeys() { std::set keys; @@ -259,7 +340,7 @@ public: } return paramsMap; } - + const std::vector getParamKeys() { std::set keys; params_t::iterator paramIter = params.begin(); @@ -269,10 +350,14 @@ public: } return std::vector(keys.begin(), keys.end()); } - + #else - std::map& getNameList() { return namelist; } - std::multimap& getParams() { return params; } + std::map& getNameList() { + return namelist; + } + std::multimap& getParams() { + return params; + } #endif static SendRequest fromXML(const std::string& xmlString); @@ -290,11 +375,10 @@ protected: std::string target; std::string type; uint32_t delayMs; - std::string content; std::map namelist; std::multimap params; - + typedef std::map namelist_t; typedef std::multimap params_t; diff --git a/src/uscxml/interpreter/InterpreterDraft6.cpp b/src/uscxml/interpreter/InterpreterDraft6.cpp index d95ae4c..18a42fd 100644 --- a/src/uscxml/interpreter/InterpreterDraft6.cpp +++ b/src/uscxml/interpreter/InterpreterDraft6.cpp @@ -67,12 +67,12 @@ void InterpreterDraft6::interpret() { } NodeSet initialTransitions; - + if (_userDefinedStartConfiguration.size() == 0) { // try to get initial transition form initial element - initialTransitions = _xpath.evaluate("/" + _xpathPrefix + "scxml/" + _xpathPrefix + "initial/" + _xpathPrefix + "transition", _document).asNodeSet(); + initialTransitions = _xpath.evaluate("/" + _xpathPrefix + "scxml/" + _xpathPrefix + "initial/" + _xpathPrefix + "transition", _document).asNodeSet(); } - + if (initialTransitions.size() == 0) { Arabica::XPath::NodeSet initialStates; if (_userDefinedStartConfiguration.size() > 0) { @@ -82,7 +82,7 @@ void InterpreterDraft6::interpret() { // or fetch per draft initialStates = getInitialStates(); } - + assert(initialStates.size() > 0); for (int i = 0; i < initialStates.size(); i++) { Arabica::DOM::Element initialElem = _document.createElementNS(_nsURL, "initial"); @@ -94,18 +94,18 @@ void InterpreterDraft6::interpret() { initialTransitions.push_back(transitionElem); } } - + assert(initialTransitions.size() > 0); enterStates(initialTransitions); - - assert(hasLegalConfiguration()); + +// assert(hasLegalConfiguration()); mainEventLoop(); if (_parentQueue) { - // send one final event to unblock eventual listeners - Event quit; - quit.name = "done.state.scxml"; - _parentQueue->push(quit); + // send one final event to unblock eventual listeners + Event quit; + quit.name = "done.state.scxml"; + _parentQueue->push(quit); } // set datamodel to null from this thread @@ -234,7 +234,7 @@ void InterpreterDraft6::mainEventLoop() { continue; // assume that we have a legal configuration as soon as the internal queue is empty - assert(hasLegalConfiguration()); + assert(hasLegalConfiguration()); monIter = _monitors.begin(); // if (!_sendQueue || _sendQueue->isEmpty()) { @@ -844,8 +844,8 @@ void InterpreterDraft6::enterStates(const Arabica::XPath::NodeSet& } void InterpreterDraft6::addStatesToEnter(const Arabica::DOM::Node& state, - Arabica::XPath::NodeSet& statesToEnter, - Arabica::XPath::NodeSet& statesForDefaultEntry) { + Arabica::XPath::NodeSet& statesToEnter, + Arabica::XPath::NodeSet& statesForDefaultEntry) { std::string stateId = ((Arabica::DOM::Element)state).getAttribute("id"); #if VERBOSE diff --git a/src/uscxml/interpreter/InterpreterDraft6.h b/src/uscxml/interpreter/InterpreterDraft6.h index 10ff10a..476da05 100644 --- a/src/uscxml/interpreter/InterpreterDraft6.h +++ b/src/uscxml/interpreter/InterpreterDraft6.h @@ -8,17 +8,17 @@ namespace uscxml { class InterpreterDraft6 : public Interpreter { void interpret(); void mainEventLoop(); - + void initializeData(const Arabica::DOM::Node& data); void microstep(const Arabica::XPath::NodeSet& enabledTransitions); void enterStates(const Arabica::XPath::NodeSet& enabledTransitions); void addStatesToEnter(const Arabica::DOM::Node& state, Arabica::XPath::NodeSet& statesToEnter, Arabica::XPath::NodeSet& statesForDefaultEntry); - + void exitStates(const Arabica::XPath::NodeSet& enabledTransitions); void exitInterpreter(); - + Arabica::XPath::NodeSet selectEventlessTransitions(); Arabica::XPath::NodeSet selectTransitions(const std::string& event); Arabica::XPath::NodeSet filterPreempted(const Arabica::XPath::NodeSet& enabledTransitions); diff --git a/src/uscxml/interpreter/InterpreterDraft7.cpp b/src/uscxml/interpreter/InterpreterDraft7.cpp index 9542146..7af2d39 100644 --- a/src/uscxml/interpreter/InterpreterDraft7.cpp +++ b/src/uscxml/interpreter/InterpreterDraft7.cpp @@ -27,12 +27,12 @@ procedure interpret(doc): void InterpreterDraft7::interpret() { if (!_isInitialized) init(); - + if (!_scxml) return; - + _sessionId = getUUID(); - + std::string datamodelName; if (datamodelName.length() == 0 && HAS_ATTR(_scxml, "datamodel")) datamodelName = ATTR(_scxml, "datamodel"); @@ -43,7 +43,7 @@ void InterpreterDraft7::interpret() { if(datamodelName.length() > 0 && !_dataModel) { LOG(ERROR) << "No datamodel for " << datamodelName << " registered"; } - + if (_dataModel) { _dataModel.assign("_x.args", _cmdLineOptions); if (_httpServlet) { @@ -52,14 +52,14 @@ void InterpreterDraft7::interpret() { _dataModel.assign("_ioprocessors['http']", data); } } - + setupIOProcessors(); - + _running = true; _binding = (HAS_ATTR(_scxml, "binding") && boost::iequals(ATTR(_scxml, "binding"), "late") ? LATE : EARLY); - + // @TODO: Reread http://www.w3.org/TR/scxml/#DataBinding - + if (_dataModel && _binding == EARLY) { // initialize all data elements NodeSet dataElems = _xpath.evaluate("//" + _xpathPrefix + "data", _document).asNodeSet(); @@ -73,14 +73,14 @@ void InterpreterDraft7::interpret() { initializeData(topDataElems[i]); } } - + // executeGlobalScriptElements NodeSet globalScriptElems = _xpath.evaluate("/" + _xpathPrefix + "scxml/" + _xpathPrefix + "script", _document).asNodeSet(); for (unsigned int i = 0; i < globalScriptElems.size(); i++) { if (_dataModel) executeContent(globalScriptElems[i]); } - + // initial transition might be implict NodeSet initialTransitions = _xpath.evaluate("/" + _xpathPrefix + "scxml/" + _xpathPrefix + "initial/" + _xpathPrefix + "transition", _document).asNodeSet(); if (initialTransitions.size() == 0) { @@ -97,21 +97,21 @@ void InterpreterDraft7::interpret() { } } enterStates(initialTransitions); - + // assert(hasLegalConfiguration()); mainEventLoop(); - + if (_parentQueue) { // send one final event to unblock eventual listeners Event quit; quit.name = "done.state.scxml"; _parentQueue->push(quit); } - + // set datamodel to null from this thread if(_dataModel) _dataModel = DataModel(); - + } /** @@ -127,7 +127,7 @@ void InterpreterDraft7::initializeData(const Arabica::DOM::Node& da LOG(ERROR) << "Data element has no id!"; return; } - + if (HAS_ATTR(data, "expr")) { std::string value = ATTR(data, "expr"); _dataModel.assign(ATTR(data, "id"), value); @@ -135,7 +135,7 @@ void InterpreterDraft7::initializeData(const Arabica::DOM::Node& da URL srcURL(ATTR(data, "src")); if (!srcURL.isAbsolute()) toAbsoluteURI(srcURL); - + std::stringstream ss; if (_cachedURLs.find(srcURL.asString()) != _cachedURLs.end()) { ss << _cachedURLs[srcURL.asString()]; @@ -144,7 +144,7 @@ void InterpreterDraft7::initializeData(const Arabica::DOM::Node& da _cachedURLs[srcURL.asString()] = srcURL; } _dataModel.assign(ATTR(data, "id"), ss.str()); - + } else if (data.hasChildNodes()) { // search for the text node with the actual script NodeList dataChilds = data.getChildNodes(); @@ -156,7 +156,7 @@ void InterpreterDraft7::initializeData(const Arabica::DOM::Node& da } } } - + } catch (Event e) { LOG(ERROR) << "Syntax error in data element:" << std::endl << e << std::endl; } @@ -167,12 +167,12 @@ procedure mainEventLoop(): while running: enabledTransitions = null macrostepDone = false - # Here we handle eventless transitions and transitions + # Here we handle eventless transitions and transitions # triggered by internal events until macrostep is complete while running and not macrostepDone: enabledTransitions = selectEventlessTransitions() if enabledTransitions.isEmpty(): - if internalQueue.isEmpty(): + if internalQueue.isEmpty(): macrostepDone = true else: internalEvent = internalQueue.dequeue() @@ -180,7 +180,7 @@ procedure mainEventLoop(): enabledTransitions = selectTransitions(internalEvent) if not enabledTransitions.isEmpty(): microstep(enabledTransitions.toList()) - # either we're in a final state, and we break out of the loop + # either we're in a final state, and we break out of the loop if not running: break; # or we've completed a macrostep, so we start a new macrostep by waiting for an external event @@ -189,7 +189,7 @@ procedure mainEventLoop(): for inv in state.invoke: invoke(inv) statesToInvoke.clear() - # Invoking may have raised internal error events and we iterate to handle them + # Invoking may have raised internal error events and we iterate to handle them if not internalQueue.isEmpty(): continue # A blocking wait for an external event. Alternatively, if we have been invoked @@ -205,12 +205,12 @@ procedure mainEventLoop(): if inv.invokeid == externalEvent.invokeid: applyFinalize(inv, externalEvent) if inv.autoforward: - send(inv.id, externalEvent) + send(inv.id, externalEvent) enabledTransitions = selectTransitions(externalEvent) if not enabledTransitions.isEmpty(): - microstep(enabledTransitions.toList()) - # End of outer while running loop. If we get here, we have reached a top-level final state or have been cancelled - exitInterpreter() + microstep(enabledTransitions.toList()) + # End of outer while running loop. If we get here, we have reached a top-level final state or have been cancelled + exitInterpreter() */ void InterpreterDraft7::mainEventLoop() { } @@ -224,7 +224,7 @@ procedure exitInterpreter(): for inv in s.invoke: cancelInvoke(inv) configuration.delete(s) - if isFinalState(s) and isScxmlState(s.parent): + if isFinalState(s) and isScxmlState(s.parent): returnDoneEvent(s.donedata) */ void InterpreterDraft7::exitInterpreter() { @@ -246,7 +246,7 @@ function selectEventlessTransitions(): for state in atomicStates: loop: for s in [state].append(getProperAncestors(state, null)): for t in s.transition: - if not t.event and conditionMatch(t): + if not t.event and conditionMatch(t): enabledTransitions.add(t) break loop enabledTransitions = filterPreempted(enabledTransitions) @@ -275,7 +275,7 @@ Arabica::XPath::NodeSet InterpreterDraft7::selectTransitions(const procedure enterStates(enabledTransitions): statesToEnter = new OrderedSet() statesForDefaultEntry = new OrderedSet() - computeEntrySet(enabledTransitions, statesToEnter, statesForDefaultEntry) + computeEntrySet(enabledTransitions, statesToEnter, statesForDefaultEntry) for s in statesToEnter.toList().sort(entryOrder): configuration.add(s) statesToInvoke.add(s) @@ -302,14 +302,14 @@ void InterpreterDraft7::enterStates(const Arabica::XPath::NodeSet& /** procedure exitStates(enabledTransitions): - statesToExit = computeExitSet(enabledTransitions) + statesToExit = computeExitSet(enabledTransitions) for s in statesToExit: statesToInvoke.delete(s) statesToExit = statesToExit.toList().sort(exitOrder) for s in statesToExit: for h in s.history: if h.type == "deep": - f = lambda s0: isAtomicState(s0) and isDescendant(s0,s) + f = lambda s0: isAtomicState(s0) and isDescendant(s0,s) else: f = lambda s0: s0.parent == s historyValue[h.id] = configuration.toList().filter(f) @@ -330,27 +330,27 @@ function computeExitSet(transitions) domain = getTransitionDomain(t) for s in configuration: if isDescendant(s,domain): - statesToExit.add(s) - return statesToExit + statesToExit.add(s) + return statesToExit */ Arabica::XPath::NodeSet InterpreterDraft7::computeExitSet(const Arabica::XPath::NodeSet& enabledTransitions, - const Arabica::XPath::NodeSet& statesToExit) { + const Arabica::XPath::NodeSet& statesToExit) { } /** procedure computeEntrySet(transitions, statesToEnter, statesForDefaultEntry) for t in transitions: - statesToEnter.union(getTargetStates(t.target)) + statesToEnter.union(getTargetStates(t.target)) for s in statesToEnter: - addDescendentStatesToEnter(s,statesToEnter,statesForDefaultEntry) - for t in transitions: - ancestor = getTransitionDomain(t) - for s in getTargetStates(t.target)): + addDescendentStatesToEnter(s,statesToEnter,statesForDefaultEntry) + for t in transitions: + ancestor = getTransitionDomain(t) + for s in getTargetStates(t.target)): addAncestorStatesToEnter(s, ancestor, statesToEnter, statesForDefaultEntry) */ Arabica::XPath::NodeSet InterpreterDraft7::computeEntrySet(const Arabica::XPath::NodeSet& transitions, - const Arabica::XPath::NodeSet& statesToEnter, - const Arabica::XPath::NodeSet& statesForDefaultEntry) { + const Arabica::XPath::NodeSet& statesToEnter, + const Arabica::XPath::NodeSet& statesForDefaultEntry) { } /** @@ -364,14 +364,14 @@ function removeConflictingTransitions(enabledTransitions): if computeExitSet(t1).hasIntersection(computeExitSet(t2)): if isDescendent(t1.source, t2.source): transitionsToRemove.add(t2) - else: + else: t1Preempted = true break if not t1Preempted: for t3 in transitionsToRemove.toList(): filteredTransitions.delete(t3) filteredTransitions.add(t1) - + return filteredTransitions */ Arabica::XPath::NodeSet InterpreterDraft7::removeConflictingTransitions(const Arabica::XPath::NodeSet& enabledTransitions) { @@ -413,11 +413,11 @@ Arabica::DOM::Node InterpreterDraft7::getTransitionDomain(const Ara if isParallelState(state): for child in getChildStates(state): if not statesToEnter.some(lambda s: isDescendant(s,child)): - addDescendentStatesToEnter(child,statesToEnter,statesForDefaultEntry) + addDescendentStatesToEnter(child,statesToEnter,statesForDefaultEntry) */ Arabica::XPath::NodeSet InterpreterDraft7::addDescendentStatesToEnter(const Arabica::DOM::Node& state, - const Arabica::XPath::NodeSet& statesToEnter, - const Arabica::XPath::NodeSet& statesForDefaultEntry) { + const Arabica::XPath::NodeSet& statesToEnter, + const Arabica::XPath::NodeSet& statesForDefaultEntry) { } /** @@ -427,12 +427,12 @@ Arabica::XPath::NodeSet InterpreterDraft7::addDescendentStatesToEnt if isParallelState(anc): for child in getChildStates(anc): if not statesToEnter.some(lambda s: isDescendant(s,child)): - addStatesToEnter(child,statesToEnter,statesForDefaultEntry) + addStatesToEnter(child,statesToEnter,statesForDefaultEntry) */ Arabica::XPath::NodeSet InterpreterDraft7::addAncestorsStatesToEnter(const Arabica::DOM::Node& state, - const Arabica::DOM::Node& ancestor, - const Arabica::XPath::NodeSet& statesToEnter, - const Arabica::XPath::NodeSet& statesForDefaultEntry) { + const Arabica::DOM::Node& ancestor, + const Arabica::XPath::NodeSet& statesToEnter, + const Arabica::XPath::NodeSet& statesForDefaultEntry) { } diff --git a/src/uscxml/interpreter/InterpreterDraft7.h b/src/uscxml/interpreter/InterpreterDraft7.h index e784e84..1dc9350 100644 --- a/src/uscxml/interpreter/InterpreterDraft7.h +++ b/src/uscxml/interpreter/InterpreterDraft7.h @@ -19,23 +19,23 @@ class InterpreterDraft7 : public Interpreter { void exitStates(const Arabica::XPath::NodeSet& enabledTransitions); Arabica::XPath::NodeSet computeExitSet(const Arabica::XPath::NodeSet& enabledTransitions, - const Arabica::XPath::NodeSet& statesToExit); + const Arabica::XPath::NodeSet& statesToExit); Arabica::XPath::NodeSet computeEntrySet(const Arabica::XPath::NodeSet& transitions, - const Arabica::XPath::NodeSet& statesToEnter, - const Arabica::XPath::NodeSet& statesForDefaultEntry); + const Arabica::XPath::NodeSet& statesToEnter, + const Arabica::XPath::NodeSet& statesForDefaultEntry); Arabica::XPath::NodeSet removeConflictingTransitions(const Arabica::XPath::NodeSet& enabledTransitions); Arabica::DOM::Node getTransitionDomain(const Arabica::DOM::Node& transition); Arabica::XPath::NodeSet addDescendentStatesToEnter(const Arabica::DOM::Node& state, - const Arabica::XPath::NodeSet& statesToEnter, - const Arabica::XPath::NodeSet& statesForDefaultEntry); + const Arabica::XPath::NodeSet& statesToEnter, + const Arabica::XPath::NodeSet& statesForDefaultEntry); Arabica::XPath::NodeSet addAncestorsStatesToEnter(const Arabica::DOM::Node& state, - const Arabica::DOM::Node& ancestor, - const Arabica::XPath::NodeSet& statesToEnter, - const Arabica::XPath::NodeSet& statesForDefaultEntry); + const Arabica::DOM::Node& ancestor, + const Arabica::XPath::NodeSet& statesToEnter, + const Arabica::XPath::NodeSet& statesForDefaultEntry); void initializeData(const Arabica::DOM::Node& data); diff --git a/src/uscxml/plugins/datamodel/ecmascript/v8/V8DataModel.cpp b/src/uscxml/plugins/datamodel/ecmascript/v8/V8DataModel.cpp index 407988e..4072862 100644 --- a/src/uscxml/plugins/datamodel/ecmascript/v8/V8DataModel.cpp +++ b/src/uscxml/plugins/datamodel/ecmascript/v8/V8DataModel.cpp @@ -1,6 +1,8 @@ #include "uscxml/Common.h" #include "V8DataModel.h" +#include "dom/V8DOM.h" #include "dom/V8Document.h" +#include "dom/V8Node.h" #include "dom/V8SCXMLEvent.h" #include "uscxml/Message.h" @@ -118,8 +120,23 @@ void V8DataModel::setEvent(const Event& event) { privData->dom = _dom; eventObj->SetInternalField(0, Arabica::DOM::V8DOM::toExternal(privData)); eventObj.MakeWeak(0, Arabica::DOM::V8SCXMLEvent::jsDestructor); + if (event.dom) { + v8::Handle retCtor = Arabica::DOM::V8Document::getTmpl()->GetFunction(); + v8::Persistent retObj = v8::Persistent::New(retCtor->NewInstance()); - eventObj->Set(v8::String::New("data"), getDataAsValue(event.data)); // set data part of _event + struct Arabica::DOM::V8Document::V8DocumentPrivate* retPrivData = new Arabica::DOM::V8Document::V8DocumentPrivate(); + retPrivData->dom = privData->dom; + retPrivData->nativeObj = (Arabica::DOM::Document*)&event.dom; + + retObj->SetInternalField(0, Arabica::DOM::V8DOM::toExternal(retPrivData)); + retObj.MakeWeak(0, Arabica::DOM::V8Document::jsDestructor); + + eventObj->Set(v8::String::New("data"), retObj); // set data part of _event + } else if (event.content.length() > 0) { + eventObj->Set(v8::String::New("data"), v8::String::New(event.content.c_str())); // set data part of _event + } else { + eventObj->Set(v8::String::New("data"), getDataAsValue(event.data)); // set data part of _event + } global->Set(v8::String::New("_event"), eventObj); } @@ -247,9 +264,18 @@ bool V8DataModel::validate(const std::string& location, const std::string& schem uint32_t V8DataModel::getLength(const std::string& expr) { v8::Locker locker; v8::HandleScope handleScope; + v8::TryCatch tryCatch; v8::Context::Scope contextScope(_contexts.back()); - v8::Handle result = evalAsValue(expr).As(); - return result->Length(); + v8::Handle result = evalAsValue(expr); + if (!result.IsEmpty() && result->IsArray()) + return result.As()->Length(); + + Event exceptionEvent; + exceptionEvent.name = "error.execution"; + exceptionEvent.data.compound["exception"] = Data("'" + expr + "' does not evaluate to an array.", Data::VERBATIM);; + + _interpreter->receiveInternal(exceptionEvent); + throw(exceptionEvent); } void V8DataModel::eval(const std::string& expr) { @@ -280,6 +306,17 @@ std::string V8DataModel::evalAsString(const std::string& expr) { return std::string(*data); } +double V8DataModel::evalAsNumber(const std::string& expr) { + v8::Locker locker; + v8::HandleScope handleScope; + v8::Context::Scope contextScope(_contexts.back()); + v8::Handle result = evalAsValue(expr); + if (result->IsNumber()) { + return result->ToNumber()->NumberValue(); + } + return 0; +} + void V8DataModel::assign(const std::string& location, const Data& data) { v8::Locker locker; v8::HandleScope handleScope; @@ -308,49 +345,54 @@ v8::Handle V8DataModel::evalAsValue(const std::string& expr) { if (script.IsEmpty() || result.IsEmpty()) { // throw an exception - assert(tryCatch.HasCaught()); - Event exceptionEvent; - exceptionEvent.name = "error.execution"; - - std::string exceptionString(*v8::String::AsciiValue(tryCatch.Exception())); - exceptionEvent.data.compound["exception"] = Data(exceptionString, Data::VERBATIM);; - - v8::Handle message = tryCatch.Message(); - if (!message.IsEmpty()) { - std::string filename(*v8::String::AsciiValue(message->GetScriptResourceName())); - exceptionEvent.data.compound["filename"] = Data(filename, Data::VERBATIM); - - std::string sourceLine(*v8::String::AsciiValue(message->GetSourceLine())); - size_t startpos = sourceLine.find_first_not_of(" \t"); - if(std::string::npos != startpos) // removoe leading white space - sourceLine = sourceLine.substr(startpos); - - exceptionEvent.data.compound["sourceline"] = Data(sourceLine, Data::VERBATIM); - - std::stringstream ssLineNumber; - int lineNumber = message->GetLineNumber(); - ssLineNumber << lineNumber; - exceptionEvent.data.compound["linenumber"] = Data(ssLineNumber.str()); - - int startColumn = message->GetStartColumn(); - int endColumn = message->GetEndColumn(); - std::stringstream ssUnderline; - for (int i = 0; i < startColumn; i++) - ssUnderline << " "; - for (int i = startColumn; i < endColumn; i++) - ssUnderline << "^"; - exceptionEvent.data.compound["sourcemark"] = Data(ssUnderline.str(), Data::VERBATIM); - - std::string stackTrace(*v8::String::AsciiValue(tryCatch.StackTrace())); - exceptionEvent.data.compound["stacktrace"] = Data(stackTrace, Data::VERBATIM); + if (tryCatch.HasCaught()) + throwExceptionEvent(tryCatch); + } - } + return result; +} + +void V8DataModel::throwExceptionEvent(const v8::TryCatch& tryCatch) { + assert(tryCatch.HasCaught()); + Event exceptionEvent; + exceptionEvent.name = "error.execution"; + + std::string exceptionString(*v8::String::AsciiValue(tryCatch.Exception())); + exceptionEvent.data.compound["exception"] = Data(exceptionString, Data::VERBATIM);; + + v8::Handle message = tryCatch.Message(); + if (!message.IsEmpty()) { + std::string filename(*v8::String::AsciiValue(message->GetScriptResourceName())); + exceptionEvent.data.compound["filename"] = Data(filename, Data::VERBATIM); + + std::string sourceLine(*v8::String::AsciiValue(message->GetSourceLine())); + size_t startpos = sourceLine.find_first_not_of(" \t"); + if(std::string::npos != startpos) // removoe leading white space + sourceLine = sourceLine.substr(startpos); + + exceptionEvent.data.compound["sourceline"] = Data(sourceLine, Data::VERBATIM); + + std::stringstream ssLineNumber; + int lineNumber = message->GetLineNumber(); + ssLineNumber << lineNumber; + exceptionEvent.data.compound["linenumber"] = Data(ssLineNumber.str()); + + int startColumn = message->GetStartColumn(); + int endColumn = message->GetEndColumn(); + std::stringstream ssUnderline; + for (int i = 0; i < startColumn; i++) + ssUnderline << " "; + for (int i = startColumn; i < endColumn; i++) + ssUnderline << "^"; + exceptionEvent.data.compound["sourcemark"] = Data(ssUnderline.str(), Data::VERBATIM); + + std::string stackTrace(*v8::String::AsciiValue(tryCatch.StackTrace())); + exceptionEvent.data.compound["stacktrace"] = Data(stackTrace, Data::VERBATIM); - _interpreter->receiveInternal(exceptionEvent); - throw(exceptionEvent); } - return result; + _interpreter->receiveInternal(exceptionEvent); + throw(exceptionEvent); } } \ No newline at end of file diff --git a/src/uscxml/plugins/datamodel/ecmascript/v8/V8DataModel.h b/src/uscxml/plugins/datamodel/ecmascript/v8/V8DataModel.h index 18e1ea4..6d4ca63 100644 --- a/src/uscxml/plugins/datamodel/ecmascript/v8/V8DataModel.h +++ b/src/uscxml/plugins/datamodel/ecmascript/v8/V8DataModel.h @@ -52,6 +52,7 @@ public: virtual std::string evalAsString(const std::string& expr); virtual bool evalAsBool(const std::string& expr); + virtual double evalAsNumber(const std::string& expr); static v8::Handle jsIn(const v8::Arguments& args); static v8::Handle jsPrint(const v8::Arguments& args); @@ -63,6 +64,7 @@ protected: v8::Handle evalAsValue(const std::string& expr); virtual v8::Handle getDataAsValue(const Data& data); + void throwExceptionEvent(const v8::TryCatch& tryCatch); }; diff --git a/src/uscxml/plugins/datamodel/ecmascript/v8/dom/V8NodeList.h b/src/uscxml/plugins/datamodel/ecmascript/v8/dom/V8NodeList.h index fb1b510..c454e65 100644 --- a/src/uscxml/plugins/datamodel/ecmascript/v8/dom/V8NodeList.h +++ b/src/uscxml/plugins/datamodel/ecmascript/v8/dom/V8NodeList.h @@ -43,6 +43,7 @@ public: static v8::Handle itemCallback(const v8::Arguments&); static v8::Handle lengthAttrGetter(v8::Local property, const v8::AccessorInfo& info); + static v8::Handle indexedPropertyCustomGetter(uint32_t, const v8::AccessorInfo&); static v8::Persistent Tmpl; static v8::Handle getTmpl() { @@ -60,6 +61,7 @@ public: instance->SetAccessor(v8::String::NewSymbol("length"), V8NodeList::lengthAttrGetter, 0, v8::External::New(0), static_cast(v8::DEFAULT), static_cast(v8::None)); + instance->SetIndexedPropertyHandler(V8NodeList::indexedPropertyCustomGetter, 0); prototype->Set(v8::String::NewSymbol("item"), v8::FunctionTemplate::New(V8NodeList::itemCallback, v8::Undefined()), static_cast(v8::DontDelete)); diff --git a/src/uscxml/plugins/datamodel/ecmascript/v8/dom/V8NodeListCustom.cpp b/src/uscxml/plugins/datamodel/ecmascript/v8/dom/V8NodeListCustom.cpp new file mode 100644 index 0000000..c05c5a4 --- /dev/null +++ b/src/uscxml/plugins/datamodel/ecmascript/v8/dom/V8NodeListCustom.cpp @@ -0,0 +1,52 @@ +#include "V8NodeList.h" +#include "V8Element.h" +#include "V8Node.h" + +namespace Arabica { +namespace DOM { + +v8::Handle V8NodeList::indexedPropertyCustomGetter(uint32_t index, const v8::AccessorInfo &info) { + v8::Local self = info.Holder(); + V8NodeListPrivate* privData = V8DOM::toClassPtr(self->GetInternalField(0)); + + if (privData->nativeObj->getLength() >= index) { + switch(privData->nativeObj->item(index).getNodeType()) { + case Node_base::ELEMENT_NODE: { + Arabica::DOM::Element* retVal = new Arabica::DOM::Element(privData->nativeObj->item(index)); + + v8::Handle retCtor = V8Element::getTmpl()->GetFunction(); + v8::Persistent retObj = v8::Persistent::New(retCtor->NewInstance()); + + struct V8Element::V8ElementPrivate* retPrivData = new V8Element::V8ElementPrivate(); + retPrivData->dom = privData->dom; + retPrivData->nativeObj = retVal; + + retObj->SetInternalField(0, V8DOM::toExternal(retPrivData)); + + retObj.MakeWeak(0, V8Element::jsDestructor); + return retObj; + } + default: { + Arabica::DOM::Node* retVal = new Arabica::DOM::Node(privData->nativeObj->item(index)); + + v8::Handle retCtor = V8Node::getTmpl()->GetFunction(); + v8::Persistent retObj = v8::Persistent::New(retCtor->NewInstance()); + + struct V8Node::V8NodePrivate* retPrivData = new V8Node::V8NodePrivate(); + retPrivData->dom = privData->dom; + retPrivData->nativeObj = retVal; + + retObj->SetInternalField(0, V8DOM::toExternal(retPrivData)); + + retObj.MakeWeak(0, V8Node::jsDestructor); + return retObj; + } + } + } + + return v8::Undefined(); + +} + +} +} \ No newline at end of file diff --git a/test/run-scxml-test-framework.sh b/test/run-scxml-test-framework.sh index 804eb9f..d8d41f7 100755 --- a/test/run-scxml-test-framework.sh +++ b/test/run-scxml-test-framework.sh @@ -14,11 +14,11 @@ fi SCXML_TEST_FRAMEWORK_FULL="$( cd "$(dirname "$1")" && pwd)/$(basename $1)" SCXML_TEST_FRAMEWORK_NAME=$(basename $1) -if [[ ! -x "${SCXML_TEST_FRAMEWORK_FULL}" ]]; then - echo - echo "${SCXML_TEST_FRAMEWORK_FULL} not an executable file" - echo -fi +# if [[ ! -x "${SCXML_TEST_FRAMEWORK_FULL}" ]]; then +# echo +# echo "${SCXML_TEST_FRAMEWORK_FULL} not an executable file" +# echo +# fi TESTS="" # TESTS="${TESTS} scxml-test-framework/test/actionSend/send1.scxml" # passed @@ -158,11 +158,11 @@ TESTS="" # TESTS="${TESTS} scxml-test-framework/test/targetless-transition/test3.scxml" # failed # TESTS="${TESTS} scxml-test-framework/test/*/*.scxml" -TESTS="${TESTS} scxml-test-framework/test/w3c/*.scxml" +TESTS="${TESTS} scxml-test-framework/test/w3c-ecma/*.scxml" #trap 'killall ${SCXML_TEST_FRAMEWORK_NAME}' 0 #$SCXML_TEST_FRAMEWORK_FULL & #sleep 1 -cd $DIR +#cd $DIR node scxml-test-framework --test-server-url http://localhost:8080/test $TESTS diff --git a/test/samples/w3c/txml/test144.txml b/test/samples/w3c/txml/test144.txml deleted file mode 100644 index 73e50b0..0000000 --- a/test/samples/w3c/txml/test144.txml +++ /dev/null @@ -1,27 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/test/samples/w3c/txml/test147.txml b/test/samples/w3c/txml/test147.txml deleted file mode 100644 index 20363a0..0000000 --- a/test/samples/w3c/txml/test147.txml +++ 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7193 7194 7195 7196 7197 7198 7199 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 7219 7220 7221 7222 7223 7224 7225 7226 7227 7228 7229 7230 7231 7232 7233 7234 7235 
/* File automatically generated by Parser/asdl_c.py. */

#include <stddef.h>

#include "Python.h"
#include "Python-ast.h"

static PyTypeObject AST_type;
static PyTypeObject *mod_type;
static PyObject* ast2obj_mod(void*);
static PyTypeObject *Module_type;
_Py_IDENTIFIER(body);
static char *Module_fields[]={
        "body",
};
static PyTypeObject *Interactive_type;
static char *Interactive_fields[]={
        "body",
};
static PyTypeObject *Expression_type;
static char *Expression_fields[]={
        "body",
};
static PyTypeObject *Suite_type;
static char *Suite_fields[]={
        "body",
};
static PyTypeObject *stmt_type;
_Py_IDENTIFIER(lineno);
_Py_IDENTIFIER(col_offset);
static char *stmt_attributes[] = {
        "lineno",
        "col_offset",
};
static PyObject* ast2obj_stmt(void*);
static PyTypeObject *FunctionDef_type;
_Py_IDENTIFIER(name);
_Py_IDENTIFIER(args);
_Py_IDENTIFIER(decorator_list);
_Py_IDENTIFIER(returns);
static char *FunctionDef_fields[]={
        "name",
        "args",
        "body",
        "decorator_list",
        "returns",
};
static PyTypeObject *ClassDef_type;
_Py_IDENTIFIER(bases);
_Py_IDENTIFIER(keywords);
_Py_IDENTIFIER(starargs);
_Py_IDENTIFIER(kwargs);
static char *ClassDef_fields[]={
        "name",
        "bases",
        "keywords",
        "starargs",
        "kwargs",
        "body",
        "decorator_list",
};
static PyTypeObject *Return_type;
_Py_IDENTIFIER(value);
static char *Return_fields[]={
        "value",
};
static PyTypeObject *Delete_type;
_Py_IDENTIFIER(targets);
static char *Delete_fields[]={
        "targets",
};
static PyTypeObject *Assign_type;
static char *Assign_fields[]={
        "targets",
        "value",
};
static PyTypeObject *AugAssign_type;
_Py_IDENTIFIER(target);
_Py_IDENTIFIER(op);
static char *AugAssign_fields[]={
        "target",
        "op",
        "value",
};
static PyTypeObject *For_type;
_Py_IDENTIFIER(iter);
_Py_IDENTIFIER(orelse);
static char *For_fields[]={
        "target",
        "iter",
        "body",
        "orelse",
};
static PyTypeObject *While_type;
_Py_IDENTIFIER(test);
static char *While_fields[]={
        "test",
        "body",
        "orelse",
};
static PyTypeObject *If_type;
static char *If_fields[]={
        "test",
        "body",
        "orelse",
};
static PyTypeObject *With_type;
_Py_IDENTIFIER(items);
static char *With_fields[]={
        "items",
        "body",
};
static PyTypeObject *Raise_type;
_Py_IDENTIFIER(exc);
_Py_IDENTIFIER(cause);
static char *Raise_fields[]={
        "exc",
        "cause",
};
static PyTypeObject *Try_type;
_Py_IDENTIFIER(handlers);
_Py_IDENTIFIER(finalbody);
static char *Try_fields[]={
        "body",
        "handlers",
        "orelse",
        "finalbody",
};
static PyTypeObject *Assert_type;
_Py_IDENTIFIER(msg);
static char *Assert_fields[]={
        "test",
        "msg",
};
static PyTypeObject *Import_type;
_Py_IDENTIFIER(names);
static char *Import_fields[]={
        "names",
};
static PyTypeObject *ImportFrom_type;
_Py_IDENTIFIER(module);
_Py_IDENTIFIER(level);
static char *ImportFrom_fields[]={
        "module",
        "names",
        "level",
};
static PyTypeObject *Global_type;
static char *Global_fields[]={
        "names",
};
static PyTypeObject *Nonlocal_type;
static char *Nonlocal_fields[]={
        "names",
};
static PyTypeObject *Expr_type;
static char *Expr_fields[]={
        "value",
};
static PyTypeObject *Pass_type;
static PyTypeObject *Break_type;
static PyTypeObject *Continue_type;
static PyTypeObject *expr_type;
static char *expr_attributes[] = {
        "lineno",
        "col_offset",
};
static PyObject* ast2obj_expr(void*);
static PyTypeObject *BoolOp_type;
_Py_IDENTIFIER(values);
static char *BoolOp_fields[]={
        "op",
        "values",
};
static PyTypeObject *BinOp_type;
_Py_IDENTIFIER(left);
_Py_IDENTIFIER(right);
static char *BinOp_fields[]={
        "left",
        "op",
        "right",
};
static PyTypeObject *UnaryOp_type;
_Py_IDENTIFIER(operand);
static char *UnaryOp_fields[]={
        "op",
        "operand",
};
static PyTypeObject *Lambda_type;
static char *Lambda_fields[]={
        "args",
        "body",
};
static PyTypeObject *IfExp_type;
static char *IfExp_fields[]={
        "test",
        "body",
        "orelse",
};
static PyTypeObject *Dict_type;
_Py_IDENTIFIER(keys);
static char *Dict_fields[]={
        "keys",
        "values",
};
static PyTypeObject *Set_type;
_Py_IDENTIFIER(elts);
static char *Set_fields[]={
        "elts",
};
static PyTypeObject *ListComp_type;
_Py_IDENTIFIER(elt);
_Py_IDENTIFIER(generators);
static char *ListComp_fields[]={
        "elt",
        "generators",
};
static PyTypeObject *SetComp_type;
static char *SetComp_fields[]={
        "elt",
        "generators",
};
static PyTypeObject *DictComp_type;
_Py_IDENTIFIER(key);
static char *DictComp_fields[]={
        "key",
        "value",
        "generators",
};
static PyTypeObject *GeneratorExp_type;
static char *GeneratorExp_fields[]={
        "elt",
        "generators",
};
static PyTypeObject *Yield_type;
static char *Yield_fields[]={
        "value",
};
static PyTypeObject *YieldFrom_type;
static char *YieldFrom_fields[]={
        "value",
};
static PyTypeObject *Compare_type;
_Py_IDENTIFIER(ops);
_Py_IDENTIFIER(comparators);
static char *Compare_fields[]={
        "left",
        "ops",
        "comparators",
};
static PyTypeObject *Call_type;
_Py_IDENTIFIER(func);
static char *Call_fields[]={
        "func",
        "args",
        "keywords",
        "starargs",
        "kwargs",
};
static PyTypeObject *Num_type;
_Py_IDENTIFIER(n);
static char *Num_fields[]={
        "n",
};
static PyTypeObject *Str_type;
_Py_IDENTIFIER(s);
static char *Str_fields[]={
        "s",
};
static PyTypeObject *Bytes_type;
static char *Bytes_fields[]={
        "s",
};
static PyTypeObject *NameConstant_type;
static char *NameConstant_fields[]={
        "value",
};
static PyTypeObject *Ellipsis_type;
static PyTypeObject *Attribute_type;
_Py_IDENTIFIER(attr);
_Py_IDENTIFIER(ctx);
static char *Attribute_fields[]={
        "value",
        "attr",
        "ctx",
};
static PyTypeObject *Subscript_type;
_Py_IDENTIFIER(slice);
static char *Subscript_fields[]={
        "value",
        "slice",
        "ctx",
};
static PyTypeObject *Starred_type;
static char *Starred_fields[]={
        "value",
        "ctx",
};
static PyTypeObject *Name_type;
_Py_IDENTIFIER(id);
static char *Name_fields[]={
        "id",
        "ctx",
};
static PyTypeObject *List_type;
static char *List_fields[]={
        "elts",
        "ctx",
};
static PyTypeObject *Tuple_type;
static char *Tuple_fields[]={
        "elts",
        "ctx",
};
static PyTypeObject *expr_context_type;
static PyObject *Load_singleton, *Store_singleton, *Del_singleton,
*AugLoad_singleton, *AugStore_singleton, *Param_singleton;
static PyObject* ast2obj_expr_context(expr_context_ty);
static PyTypeObject *Load_type;
static PyTypeObject *Store_type;
static PyTypeObject *Del_type;
static PyTypeObject *AugLoad_type;
static PyTypeObject *AugStore_type;
static PyTypeObject *Param_type;
static PyTypeObject *slice_type;
static PyObject* ast2obj_slice(void*);
static PyTypeObject *Slice_type;
_Py_IDENTIFIER(lower);
_Py_IDENTIFIER(upper);
_Py_IDENTIFIER(step);
static char *Slice_fields[]={
        "lower",
        "upper",
        "step",
};
static PyTypeObject *ExtSlice_type;
_Py_IDENTIFIER(dims);
static char *ExtSlice_fields[]={
        "dims",
};
static PyTypeObject *Index_type;
static char *Index_fields[]={
        "value",
};
static PyTypeObject *boolop_type;
static PyObject *And_singleton, *Or_singleton;
static PyObject* ast2obj_boolop(boolop_ty);
static PyTypeObject *And_type;
static PyTypeObject *Or_type;
static PyTypeObject *operator_type;
static PyObject *Add_singleton, *Sub_singleton, *Mult_singleton,
*Div_singleton, *Mod_singleton, *Pow_singleton, *LShift_singleton,
*RShift_singleton, *BitOr_singleton, *BitXor_singleton, *BitAnd_singleton,
*FloorDiv_singleton;
static PyObject* ast2obj_operator(operator_ty);
static PyTypeObject *Add_type;
static PyTypeObject *Sub_type;
static PyTypeObject *Mult_type;
static PyTypeObject *Div_type;
static PyTypeObject *Mod_type;
static PyTypeObject *Pow_type;
static PyTypeObject *LShift_type;
static PyTypeObject *RShift_type;
static PyTypeObject *BitOr_type;
static PyTypeObject *BitXor_type;
static PyTypeObject *BitAnd_type;
static PyTypeObject *FloorDiv_type;
static PyTypeObject *unaryop_type;
static PyObject *Invert_singleton, *Not_singleton, *UAdd_singleton,
*USub_singleton;
static PyObject* ast2obj_unaryop(unaryop_ty);
static PyTypeObject *Invert_type;
static PyTypeObject *Not_type;
static PyTypeObject *UAdd_type;
static PyTypeObject *USub_type;
static PyTypeObject *cmpop_type;
static PyObject *Eq_singleton, *NotEq_singleton, *Lt_singleton, *LtE_singleton,
*Gt_singleton, *GtE_singleton, *Is_singleton, *IsNot_singleton, *In_singleton,
*NotIn_singleton;
static PyObject* ast2obj_cmpop(cmpop_ty);
static PyTypeObject *Eq_type;
static PyTypeObject *NotEq_type;
static PyTypeObject *Lt_type;
static PyTypeObject *LtE_type;
static PyTypeObject *Gt_type;
static PyTypeObject *GtE_type;
static PyTypeObject *Is_type;
static PyTypeObject *IsNot_type;
static PyTypeObject *In_type;
static PyTypeObject *NotIn_type;
static PyTypeObject *comprehension_type;
static PyObject* ast2obj_comprehension(void*);
_Py_IDENTIFIER(ifs);
static char *comprehension_fields[]={
        "target",
        "iter",
        "ifs",
};
static PyTypeObject *excepthandler_type;
static char *excepthandler_attributes[] = {
        "lineno",
        "col_offset",
};
static PyObject* ast2obj_excepthandler(void*);
static PyTypeObject *ExceptHandler_type;
_Py_IDENTIFIER(type);
static char *ExceptHandler_fields[]={
        "type",
        "name",
        "body",
};
static PyTypeObject *arguments_type;
static PyObject* ast2obj_arguments(void*);
_Py_IDENTIFIER(vararg);
_Py_IDENTIFIER(varargannotation);
_Py_IDENTIFIER(kwonlyargs);
_Py_IDENTIFIER(kwarg);
_Py_IDENTIFIER(kwargannotation);
_Py_IDENTIFIER(defaults);
_Py_IDENTIFIER(kw_defaults);
static char *arguments_fields[]={
        "args",
        "vararg",
        "varargannotation",
        "kwonlyargs",
        "kwarg",
        "kwargannotation",
        "defaults",
        "kw_defaults",
};
static PyTypeObject *arg_type;
static PyObject* ast2obj_arg(void*);
_Py_IDENTIFIER(arg);
_Py_IDENTIFIER(annotation);
static char *arg_fields[]={
        "arg",
        "annotation",
};
static PyTypeObject *keyword_type;
static PyObject* ast2obj_keyword(void*);
static char *keyword_fields[]={
        "arg",
        "value",
};
static PyTypeObject *alias_type;
static PyObject* ast2obj_alias(void*);
_Py_IDENTIFIER(asname);
static char *alias_fields[]={
        "name",
        "asname",
};
static PyTypeObject *withitem_type;
static PyObject* ast2obj_withitem(void*);
_Py_IDENTIFIER(context_expr);
_Py_IDENTIFIER(optional_vars);
static char *withitem_fields[]={
        "context_expr",
        "optional_vars",
};


typedef struct {
    PyObject_HEAD
    PyObject *dict;
} AST_object;

static void
ast_dealloc(AST_object *self)
{
    Py_CLEAR(self->dict);
    Py_TYPE(self)->tp_free(self);
}

static int
ast_traverse(AST_object *self, visitproc visit, void *arg)
{
    Py_VISIT(self->dict);
    return 0;
}

static void
ast_clear(AST_object *self)
{
    Py_CLEAR(self->dict);
}

static int
ast_type_init(PyObject *self, PyObject *args, PyObject *kw)
{
    _Py_IDENTIFIER(_fields);
    Py_ssize_t i, numfields = 0;
    int res = -1;
    PyObject *key, *value, *fields;
    fields = _PyObject_GetAttrId((PyObject*)Py_TYPE(self), &PyId__fields);
    if (!fields)
        PyErr_Clear();
    if (fields) {
        numfields = PySequence_Size(fields);
        if (numfields == -1)
            goto cleanup;
    }
    res = 0; /* if no error occurs, this stays 0 to the end */
    if (PyTuple_GET_SIZE(args) > 0) {
        if (numfields != PyTuple_GET_SIZE(args)) {
            PyErr_Format(PyExc_TypeError, "%.400s constructor takes %s"
                         "%zd positional argument%s",
                         Py_TYPE(self)->tp_name,
                         numfields == 0 ? "" : "either 0 or ",
                         numfields, numfields == 1 ? "" : "s");
            res = -1;
            goto cleanup;
        }
        for (i = 0; i < PyTuple_GET_SIZE(args); i++) {
            /* cannot be reached when fields is NULL */
            PyObject *name = PySequence_GetItem(fields, i);
            if (!name) {
                res = -1;
                goto cleanup;
            }
            res = PyObject_SetAttr(self, name, PyTuple_GET_ITEM(args, i));
            Py_DECREF(name);
            if (res < 0)
                goto cleanup;
        }
    }
    if (kw) {
        i = 0;  /* needed by PyDict_Next */
        while (PyDict_Next(kw, &i, &key, &value)) {
            res = PyObject_SetAttr(self, key, value);
            if (res < 0)
                goto cleanup;
        }
    }
  cleanup:
    Py_XDECREF(fields);
    return res;
}

/* Pickling support */
static PyObject *
ast_type_reduce(PyObject *self, PyObject *unused)
{
    PyObject *res;
    _Py_IDENTIFIER(__dict__);
    PyObject *dict = _PyObject_GetAttrId(self, &PyId___dict__);
    if (dict == NULL) {
        if (PyErr_ExceptionMatches(PyExc_AttributeError))
            PyErr_Clear();
        else
            return NULL;
    }
    if (dict) {
        res = Py_BuildValue("O()O", Py_TYPE(self), dict);
        Py_DECREF(dict);
        return res;
    }
    return Py_BuildValue("O()", Py_TYPE(self));
}

static PyMethodDef ast_type_methods[] = {
    {"__reduce__", ast_type_reduce, METH_NOARGS, NULL},
    {NULL}
};

static PyGetSetDef ast_type_getsets[] = {
    {"__dict__", PyObject_GenericGetDict, PyObject_GenericSetDict},
    {NULL}
};

static PyTypeObject AST_type = {
    PyVarObject_HEAD_INIT(&PyType_Type, 0)
    "_ast.AST",
    sizeof(AST_object),
    0,
    (destructor)ast_dealloc, /* tp_dealloc */
    0,                       /* tp_print */
    0,                       /* tp_getattr */
    0,                       /* tp_setattr */
    0,                       /* tp_reserved */
    0,                       /* tp_repr */
    0,                       /* tp_as_number */
    0,                       /* tp_as_sequence */
    0,                       /* tp_as_mapping */
    0,                       /* tp_hash */
    0,                       /* tp_call */
    0,                       /* tp_str */
    PyObject_GenericGetAttr, /* tp_getattro */
    PyObject_GenericSetAttr, /* tp_setattro */
    0,                       /* tp_as_buffer */
    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /* tp_flags */
    0,                       /* tp_doc */
    (traverseproc)ast_traverse, /* tp_traverse */
    (inquiry)ast_clear,      /* tp_clear */
    0,                       /* tp_richcompare */
    0,                       /* tp_weaklistoffset */
    0,                       /* tp_iter */
    0,                       /* tp_iternext */
    ast_type_methods,        /* tp_methods */
    0,                       /* tp_members */
    ast_type_getsets,        /* tp_getset */
    0,                       /* tp_base */
    0,                       /* tp_dict */
    0,                       /* tp_descr_get */
    0,                       /* tp_descr_set */
    offsetof(AST_object, dict),/* tp_dictoffset */
    (initproc)ast_type_init, /* tp_init */
    PyType_GenericAlloc,     /* tp_alloc */
    PyType_GenericNew,       /* tp_new */
    PyObject_GC_Del,         /* tp_free */
};


static PyTypeObject* make_type(char *type, PyTypeObject* base, char**fields, int num_fields)
{
    PyObject *fnames, *result;
    int i;
    fnames = PyTuple_New(num_fields);
    if (!fnames) return NULL;
    for (i = 0; i < num_fields; i++) {
        PyObject *field = PyUnicode_FromString(fields[i]);
        if (!field) {
            Py_DECREF(fnames);
            return NULL;
        }
        PyTuple_SET_ITEM(fnames, i, field);
    }
    result = PyObject_CallFunction((PyObject*)&PyType_Type, "s(O){sOss}",
                    type, base, "_fields", fnames, "__module__", "_ast");
    Py_DECREF(fnames);
    return (PyTypeObject*)result;
}

static int add_attributes(PyTypeObject* type, char**attrs, int num_fields)
{
    int i, result;
    _Py_IDENTIFIER(_attributes);
    PyObject *s, *l = PyTuple_New(num_fields);
    if (!l)
        return 0;
    for (i = 0; i < num_fields; i++) {
        s = PyUnicode_FromString(attrs[i]);
        if (!s) {
            Py_DECREF(l);
            return 0;
        }
        PyTuple_SET_ITEM(l, i, s);
    }
    result = _PyObject_SetAttrId((PyObject*)type, &PyId__attributes, l) >= 0;
    Py_DECREF(l);
    return result;
}

/* Conversion AST -> Python */

static PyObject* ast2obj_list(asdl_seq *seq, PyObject* (*func)(void*))
{
    Py_ssize_t i, n = asdl_seq_LEN(seq);
    PyObject *result = PyList_New(n);
    PyObject *value;
    if (!result)
        return NULL;
    for (i = 0; i < n; i++) {
        value = func(asdl_seq_GET(seq, i));
        if (!value) {
            Py_DECREF(result);
            return NULL;
        }
        PyList_SET_ITEM(result, i, value);
    }
    return result;
}

static PyObject* ast2obj_object(void *o)
{
    if (!o)
        o = Py_None;
    Py_INCREF((PyObject*)o);
    return (PyObject*)o;
}
#define ast2obj_singleton ast2obj_object
#define ast2obj_identifier ast2obj_object
#define ast2obj_string ast2obj_object
#define ast2obj_bytes ast2obj_object

static PyObject* ast2obj_int(long b)
{
    return PyLong_FromLong(b);
}

/* Conversion Python -> AST */

static int obj2ast_singleton(PyObject *obj, PyObject** out, PyArena* arena)
{
    if (obj != Py_None && obj != Py_True && obj != Py_False) {
        PyErr_SetString(PyExc_ValueError,
                        "AST singleton must be True, False, or None");
        return 1;
    }
    *out = obj;
    return 0;
}

static int obj2ast_object(PyObject* obj, PyObject** out, PyArena* arena)
{
    if (obj == Py_None)
        obj = NULL;
    if (obj)
        PyArena_AddPyObject(arena, obj);
    Py_XINCREF(obj);
    *out = obj;
    return 0;
}

static int obj2ast_identifier(PyObject* obj, PyObject** out, PyArena* arena)
{
    if (!PyUnicode_CheckExact(obj) && obj != Py_None) {
        PyErr_SetString(PyExc_TypeError, "AST identifier must be of type str");
        return 1;
    }
    return obj2ast_object(obj, out, arena);
}

static int obj2ast_string(PyObject* obj, PyObject** out, PyArena* arena)
{
    if (!PyUnicode_CheckExact(obj) && !PyBytes_CheckExact(obj)) {
        PyErr_SetString(PyExc_TypeError, "AST string must be of type str");
        return 1;
    }
    return obj2ast_object(obj, out, arena);
}

static int obj2ast_bytes(PyObject* obj, PyObject** out, PyArena* arena)
{
    if (!PyBytes_CheckExact(obj)) {
        PyErr_SetString(PyExc_TypeError, "AST bytes must be of type bytes");
        return 1;
    }
    return obj2ast_object(obj, out, arena);
}

static int obj2ast_int(PyObject* obj, int* out, PyArena* arena)
{
    int i;
    if (!PyLong_Check(obj)) {
        PyErr_Format(PyExc_ValueError, "invalid integer value: %R", obj);
        return 1;
    }

    i = (int)PyLong_AsLong(obj);
    if (i == -1 && PyErr_Occurred())
        return 1;
    *out = i;
    return 0;
}

static int add_ast_fields(void)
{
    PyObject *empty_tuple, *d;
    if (PyType_Ready(&AST_type) < 0)
        return -1;
    d = AST_type.tp_dict;
    empty_tuple = PyTuple_New(0);
    if (!empty_tuple ||
        PyDict_SetItemString(d, "_fields", empty_tuple) < 0 ||
        PyDict_SetItemString(d, "_attributes", empty_tuple) < 0) {
        Py_XDECREF(empty_tuple);
        return -1;
    }
    Py_DECREF(empty_tuple);
    return 0;
}


static int init_types(void)
{
        static int initialized;
        if (initialized) return 1;
        if (add_ast_fields() < 0) return 0;
        mod_type = make_type("mod", &AST_type, NULL, 0);
        if (!mod_type) return 0;
        if (!add_attributes(mod_type, NULL, 0)) return 0;
        Module_type = make_type("Module", mod_type, Module_fields, 1);
        if (!Module_type) return 0;
        Interactive_type = make_type("Interactive", mod_type,
                                     Interactive_fields, 1);
        if (!Interactive_type) return 0;
        Expression_type = make_type("Expression", mod_type, Expression_fields,
                                    1);
        if (!Expression_type) return 0;
        Suite_type = make_type("Suite", mod_type, Suite_fields, 1);
        if (!Suite_type) return 0;
        stmt_type = make_type("stmt", &AST_type, NULL, 0);
        if (!stmt_type) return 0;
        if (!add_attributes(stmt_type, stmt_attributes, 2)) return 0;
        FunctionDef_type = make_type("FunctionDef", stmt_type,
                                     FunctionDef_fields, 5);
        if (!FunctionDef_type) return 0;
        ClassDef_type = make_type("ClassDef", stmt_type, ClassDef_fields, 7);
        if (!ClassDef_type) return 0;
        Return_type = make_type("Return", stmt_type, Return_fields, 1);
        if (!Return_type) return 0;
        Delete_type = make_type("Delete", stmt_type, Delete_fields, 1);
        if (!Delete_type) return 0;
        Assign_type = make_type("Assign", stmt_type, Assign_fields, 2);
        if (!Assign_type) return 0;
        AugAssign_type = make_type("AugAssign", stmt_type, AugAssign_fields, 3);
        if (!AugAssign_type) return 0;
        For_type = make_type("For", stmt_type, For_fields, 4);
        if (!For_type) return 0;
        While_type = make_type("While", stmt_type, While_fields, 3);
        if (!While_type) return 0;
        If_type = make_type("If", stmt_type, If_fields, 3);
        if (!If_type) return 0;
        With_type = make_type("With", stmt_type, With_fields, 2);
        if (!With_type) return 0;
        Raise_type = make_type("Raise", stmt_type, Raise_fields, 2);
        if (!Raise_type) return 0;
        Try_type = make_type("Try", stmt_type, Try_fields, 4);
        if (!Try_type) return 0;
        Assert_type = make_type("Assert", stmt_type, Assert_fields, 2);
        if (!Assert_type) return 0;
        Import_type = make_type("Import", stmt_type, Import_fields, 1);
        if (!Import_type) return 0;
        ImportFrom_type = make_type("ImportFrom", stmt_type, ImportFrom_fields,
                                    3);
        if (!ImportFrom_type) return 0;
        Global_type = make_type("Global", stmt_type, Global_fields, 1);
        if (!Global_type) return 0;
        Nonlocal_type = make_type("Nonlocal", stmt_type, Nonlocal_fields, 1);
        if (!Nonlocal_type) return 0;
        Expr_type = make_type("Expr", stmt_type, Expr_fields, 1);
        if (!Expr_type) return 0;
        Pass_type = make_type("Pass", stmt_type, NULL, 0);
        if (!Pass_type) return 0;
        Break_type = make_type("Break", stmt_type, NULL, 0);
        if (!Break_type) return 0;
        Continue_type = make_type("Continue", stmt_type, NULL, 0);
        if (!Continue_type) return 0;
        expr_type = make_type("expr", &AST_type, NULL, 0);
        if (!expr_type) return 0;
        if (!add_attributes(expr_type, expr_attributes, 2)) return 0;
        BoolOp_type = make_type("BoolOp", expr_type, BoolOp_fields, 2);
        if (!BoolOp_type) return 0;
        BinOp_type = make_type("BinOp", expr_type, BinOp_fields, 3);
        if (!BinOp_type) return 0;
        UnaryOp_type = make_type("UnaryOp", expr_type, UnaryOp_fields, 2);
        if (!UnaryOp_type) return 0;
        Lambda_type = make_type("Lambda", expr_type, Lambda_fields, 2);
        if (!Lambda_type) return 0;
        IfExp_type = make_type("IfExp", expr_type, IfExp_fields, 3);
        if (!IfExp_type) return 0;
        Dict_type = make_type("Dict", expr_type, Dict_fields, 2);
        if (!Dict_type) return 0;
        Set_type = make_type("Set", expr_type, Set_fields, 1);
        if (!Set_type) return 0;
        ListComp_type = make_type("ListComp", expr_type, ListComp_fields, 2);
        if (!ListComp_type) return 0;
        SetComp_type = make_type("SetComp", expr_type, SetComp_fields, 2);
        if (!SetComp_type) return 0;
        DictComp_type = make_type("DictComp", expr_type, DictComp_fields, 3);
        if (!DictComp_type) return 0;
        GeneratorExp_type = make_type("GeneratorExp", expr_type,
                                      GeneratorExp_fields, 2);
        if (!GeneratorExp_type) return 0;
        Yield_type = make_type("Yield", expr_type, Yield_fields, 1);
        if (!Yield_type) return 0;
        YieldFrom_type = make_type("YieldFrom", expr_type, YieldFrom_fields, 1);
        if (!YieldFrom_type) return 0;
        Compare_type = make_type("Compare", expr_type, Compare_fields, 3);
        if (!Compare_type) return 0;
        Call_type = make_type("Call", expr_type, Call_fields, 5);
        if (!Call_type) return 0;
        Num_type = make_type("Num", expr_type, Num_fields, 1);
        if (!Num_type) return 0;
        Str_type = make_type("Str", expr_type, Str_fields, 1);
        if (!Str_type) return 0;
        Bytes_type = make_type("Bytes", expr_type, Bytes_fields, 1);
        if (!Bytes_type) return 0;
        NameConstant_type = make_type("NameConstant", expr_type,
                                      NameConstant_fields, 1);
        if (!NameConstant_type) return 0;
        Ellipsis_type = make_type("Ellipsis", expr_type, NULL, 0);
        if (!Ellipsis_type) return 0;
        Attribute_type = make_type("Attribute", expr_type, Attribute_fields, 3);
        if (!Attribute_type) return 0;
        Subscript_type = make_type("Subscript", expr_type, Subscript_fields, 3);
        if (!Subscript_type) return 0;
        Starred_type = make_type("Starred", expr_type, Starred_fields, 2);
        if (!Starred_type) return 0;
        Name_type = make_type("Name", expr_type, Name_fields, 2);
        if (!Name_type) return 0;
        List_type = make_type("List", expr_type, List_fields, 2);
        if (!List_type) return 0;
        Tuple_type = make_type("Tuple", expr_type, Tuple_fields, 2);
        if (!Tuple_type) return 0;
        expr_context_type = make_type("expr_context", &AST_type, NULL, 0);
        if (!expr_context_type) return 0;
        if (!add_attributes(expr_context_type, NULL, 0)) return 0;
        Load_type = make_type("Load", expr_context_type, NULL, 0);
        if (!Load_type) return 0;
        Load_singleton = PyType_GenericNew(Load_type, NULL, NULL);
        if (!Load_singleton) return 0;
        Store_type = make_type("Store", expr_context_type, NULL, 0);
        if (!Store_type) return 0;
        Store_singleton = PyType_GenericNew(Store_type, NULL, NULL);
        if (!Store_singleton) return 0;
        Del_type = make_type("Del", expr_context_type, NULL, 0);
        if (!Del_type) return 0;
        Del_singleton = PyType_GenericNew(Del_type, NULL, NULL);
        if (!Del_singleton) return 0;
        AugLoad_type = make_type("AugLoad", expr_context_type, NULL, 0);
        if (!AugLoad_type) return 0;
        AugLoad_singleton = PyType_GenericNew(AugLoad_type, NULL, NULL);
        if (!AugLoad_singleton) return 0;
        AugStore_type = make_type("AugStore", expr_context_type, NULL, 0);
        if (!AugStore_type) return 0;
        AugStore_singleton = PyType_GenericNew(AugStore_type, NULL, NULL);
        if (!AugStore_singleton) return 0;
        Param_type = make_type("Param", expr_context_type, NULL, 0);
        if (!Param_type) return 0;
        Param_singleton = PyType_GenericNew(Param_type, NULL, NULL);
        if (!Param_singleton) return 0;
        slice_type = make_type("slice", &AST_type, NULL, 0);
        if (!slice_type) return 0;
        if (!add_attributes(slice_type, NULL, 0)) return 0;
        Slice_type = make_type("Slice", slice_type, Slice_fields, 3);
        if (!Slice_type) return 0;
        ExtSlice_type = make_type("ExtSlice", slice_type, ExtSlice_fields, 1);
        if (!ExtSlice_type) return 0;
        Index_type = make_type("Index", slice_type, Index_fields, 1);
        if (!Index_type) return 0;
        boolop_type = make_type("boolop", &AST_type, NULL, 0);
        if (!boolop_type) return 0;
        if (!add_attributes(boolop_type, NULL, 0)) return 0;
        And_type = make_type("And", boolop_type, NULL, 0);
        if (!And_type) return 0;
        And_singleton = PyType_GenericNew(And_type, NULL, NULL);
        if (!And_singleton) return 0;
        Or_type = make_type("Or", boolop_type, NULL, 0);
        if (!Or_type) return 0;
        Or_singleton = PyType_GenericNew(Or_type, NULL, NULL);
        if (!Or_singleton) return 0;
        operator_type = make_type("operator", &AST_type, NULL, 0);
        if (!operator_type) return 0;
        if (!add_attributes(operator_type, NULL, 0)) return 0;
        Add_type = make_type("Add", operator_type, NULL, 0);
        if (!Add_type) return 0;
        Add_singleton = PyType_GenericNew(Add_type, NULL, NULL);
        if (!Add_singleton) return 0;
        Sub_type = make_type("Sub", operator_type, NULL, 0);
        if (!Sub_type) return 0;
        Sub_singleton = PyType_GenericNew(Sub_type, NULL, NULL);
        if (!Sub_singleton) return 0;
        Mult_type = make_type("Mult", operator_type, NULL, 0);
        if (!Mult_type) return 0;
        Mult_singleton = PyType_GenericNew(Mult_type, NULL, NULL);
        if (!Mult_singleton) return 0;
        Div_type = make_type("Div", operator_type, NULL, 0);
        if (!Div_type) return 0;
        Div_singleton = PyType_GenericNew(Div_type, NULL, NULL);
        if (!Div_singleton) return 0;
        Mod_type = make_type("Mod", operator_type, NULL, 0);
        if (!Mod_type) return 0;
        Mod_singleton = PyType_GenericNew(Mod_type, NULL, NULL);
        if (!Mod_singleton) return 0;
        Pow_type = make_type("Pow", operator_type, NULL, 0);
        if (!Pow_type) return 0;
        Pow_singleton = PyType_GenericNew(Pow_type, NULL, NULL);
        if (!Pow_singleton) return 0;
        LShift_type = make_type("LShift", operator_type, NULL, 0);
        if (!LShift_type) return 0;
        LShift_singleton = PyType_GenericNew(LShift_type, NULL, NULL);
        if (!LShift_singleton) return 0;
        RShift_type = make_type("RShift", operator_type, NULL, 0);
        if (!RShift_type) return 0;
        RShift_singleton = PyType_GenericNew(RShift_type, NULL, NULL);
        if (!RShift_singleton) return 0;
        BitOr_type = make_type("BitOr", operator_type, NULL, 0);
        if (!BitOr_type) return 0;
        BitOr_singleton = PyType_GenericNew(BitOr_type, NULL, NULL);
        if (!BitOr_singleton) return 0;
        BitXor_type = make_type("BitXor", operator_type, NULL, 0);
        if (!BitXor_type) return 0;
        BitXor_singleton = PyType_GenericNew(BitXor_type, NULL, NULL);
        if (!BitXor_singleton) return 0;
        BitAnd_type = make_type("BitAnd", operator_type, NULL, 0);
        if (!BitAnd_type) return 0;
        BitAnd_singleton = PyType_GenericNew(BitAnd_type, NULL, NULL);
        if (!BitAnd_singleton) return 0;
        FloorDiv_type = make_type("FloorDiv", operator_type, NULL, 0);
        if (!FloorDiv_type) return 0;
        FloorDiv_singleton = PyType_GenericNew(FloorDiv_type, NULL, NULL);
        if (!FloorDiv_singleton) return 0;
        unaryop_type = make_type("unaryop", &AST_type, NULL, 0);
        if (!unaryop_type) return 0;
        if (!add_attributes(unaryop_type, NULL, 0)) return 0;
        Invert_type = make_type("Invert", unaryop_type, NULL, 0);
        if (!Invert_type) return 0;
        Invert_singleton = PyType_GenericNew(Invert_type, NULL, NULL);
        if (!Invert_singleton) return 0;
        Not_type = make_type("Not", unaryop_type, NULL, 0);
        if (!Not_type) return 0;
        Not_singleton = PyType_GenericNew(Not_type, NULL, NULL);
        if (!Not_singleton) return 0;
        UAdd_type = make_type("UAdd", unaryop_type, NULL, 0);
        if (!UAdd_type) return 0;
        UAdd_singleton = PyType_GenericNew(UAdd_type, NULL, NULL);
        if (!UAdd_singleton) return 0;
        USub_type = make_type("USub", unaryop_type, NULL, 0);
        if (!USub_type) return 0;
        USub_singleton = PyType_GenericNew(USub_type, NULL, NULL);
        if (!USub_singleton) return 0;
        cmpop_type = make_type("cmpop", &AST_type, NULL, 0);
        if (!cmpop_type) return 0;
        if (!add_attributes(cmpop_type, NULL, 0)) return 0;
        Eq_type = make_type("Eq", cmpop_type, NULL, 0);
        if (!Eq_type) return 0;
        Eq_singleton = PyType_GenericNew(Eq_type, NULL, NULL);
        if (!Eq_singleton) return 0;
        NotEq_type = make_type("NotEq", cmpop_type, NULL, 0);
        if (!NotEq_type) return 0;
        NotEq_singleton = PyType_GenericNew(NotEq_type, NULL, NULL);
        if (!NotEq_singleton) return 0;
        Lt_type = make_type("Lt", cmpop_type, NULL, 0);
        if (!Lt_type) return 0;
        Lt_singleton = PyType_GenericNew(Lt_type, NULL, NULL);
        if (!Lt_singleton) return 0;
        LtE_type = make_type("LtE", cmpop_type, NULL, 0);
        if (!LtE_type) return 0;
        LtE_singleton = PyType_GenericNew(LtE_type, NULL, NULL);
        if (!LtE_singleton) return 0;
        Gt_type = make_type("Gt", cmpop_type, NULL, 0);
        if (!Gt_type) return 0;
        Gt_singleton = PyType_GenericNew(Gt_type, NULL, NULL);
        if (!Gt_singleton) return 0;
        GtE_type = make_type("GtE", cmpop_type, NULL, 0);
        if (!GtE_type) return 0;
        GtE_singleton = PyType_GenericNew(GtE_type, NULL, NULL);
        if (!GtE_singleton) return 0;
        Is_type = make_type("Is", cmpop_type, NULL, 0);
        if (!Is_type) return 0;
        Is_singleton = PyType_GenericNew(Is_type, NULL, NULL);
        if (!Is_singleton) return 0;
        IsNot_type = make_type("IsNot", cmpop_type, NULL, 0);
        if (!IsNot_type) return 0;
        IsNot_singleton = PyType_GenericNew(IsNot_type, NULL, NULL);
        if (!IsNot_singleton) return 0;
        In_type = make_type("In", cmpop_type, NULL, 0);
        if (!In_type) return 0;
        In_singleton = PyType_GenericNew(In_type, NULL, NULL);
        if (!In_singleton) return 0;
        NotIn_type = make_type("NotIn", cmpop_type, NULL, 0);
        if (!NotIn_type) return 0;
        NotIn_singleton = PyType_GenericNew(NotIn_type, NULL, NULL);
        if (!NotIn_singleton) return 0;
        comprehension_type = make_type("comprehension", &AST_type,
                                       comprehension_fields, 3);
        if (!comprehension_type) return 0;
        excepthandler_type = make_type("excepthandler", &AST_type, NULL, 0);
        if (!excepthandler_type) return 0;
        if (!add_attributes(excepthandler_type, excepthandler_attributes, 2))
            return 0;
        ExceptHandler_type = make_type("ExceptHandler", excepthandler_type,
                                       ExceptHandler_fields, 3);
        if (!ExceptHandler_type) return 0;
        arguments_type = make_type("arguments", &AST_type, arguments_fields, 8);
        if (!arguments_type) return 0;
        arg_type = make_type("arg", &AST_type, arg_fields, 2);
        if (!arg_type) return 0;
        keyword_type = make_type("keyword", &AST_type, keyword_fields, 2);
        if (!keyword_type) return 0;
        alias_type = make_type("alias", &AST_type, alias_fields, 2);
        if (!alias_type) return 0;
        withitem_type = make_type("withitem", &AST_type, withitem_fields, 2);
        if (!withitem_type) return 0;
        initialized = 1;
        return 1;
}

static int obj2ast_mod(PyObject* obj, mod_ty* out, PyArena* arena);
static int obj2ast_stmt(PyObject* obj, stmt_ty* out, PyArena* arena);
static int obj2ast_expr(PyObject* obj, expr_ty* out, PyArena* arena);
static int obj2ast_expr_context(PyObject* obj, expr_context_ty* out, PyArena*
                                arena);
static int obj2ast_slice(PyObject* obj, slice_ty* out, PyArena* arena);
static int obj2ast_boolop(PyObject* obj, boolop_ty* out, PyArena* arena);
static int obj2ast_operator(PyObject* obj, operator_ty* out, PyArena* arena);
static int obj2ast_unaryop(PyObject* obj, unaryop_ty* out, PyArena* arena);
static int obj2ast_cmpop(PyObject* obj, cmpop_ty* out, PyArena* arena);
static int obj2ast_comprehension(PyObject* obj, comprehension_ty* out, PyArena*
                                 arena);
static int obj2ast_excepthandler(PyObject* obj, excepthandler_ty* out, PyArena*
                                 arena);
static int obj2ast_arguments(PyObject* obj, arguments_ty* out, PyArena* arena);
static int obj2ast_arg(PyObject* obj, arg_ty* out, PyArena* arena);
static int obj2ast_keyword(PyObject* obj, keyword_ty* out, PyArena* arena);
static int obj2ast_alias(PyObject* obj, alias_ty* out, PyArena* arena);
static int obj2ast_withitem(PyObject* obj, withitem_ty* out, PyArena* arena);

mod_ty
Module(asdl_seq * body, PyArena *arena)
{
        mod_ty p;
        p = (mod_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Module_kind;
        p->v.Module.body = body;
        return p;
}

mod_ty
Interactive(asdl_seq * body, PyArena *arena)
{
        mod_ty p;
        p = (mod_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Interactive_kind;
        p->v.Interactive.body = body;
        return p;
}

mod_ty
Expression(expr_ty body, PyArena *arena)
{
        mod_ty p;
        if (!body) {
                PyErr_SetString(PyExc_ValueError,
                                "field body is required for Expression");
                return NULL;
        }
        p = (mod_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Expression_kind;
        p->v.Expression.body = body;
        return p;
}

mod_ty
Suite(asdl_seq * body, PyArena *arena)
{
        mod_ty p;
        p = (mod_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Suite_kind;
        p->v.Suite.body = body;
        return p;
}

stmt_ty
FunctionDef(identifier name, arguments_ty args, asdl_seq * body, asdl_seq *
            decorator_list, expr_ty returns, int lineno, int col_offset,
            PyArena *arena)
{
        stmt_ty p;
        if (!name) {
                PyErr_SetString(PyExc_ValueError,
                                "field name is required for FunctionDef");
                return NULL;
        }
        if (!args) {
                PyErr_SetString(PyExc_ValueError,
                                "field args is required for FunctionDef");
                return NULL;
        }
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = FunctionDef_kind;
        p->v.FunctionDef.name = name;
        p->v.FunctionDef.args = args;
        p->v.FunctionDef.body = body;
        p->v.FunctionDef.decorator_list = decorator_list;
        p->v.FunctionDef.returns = returns;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
ClassDef(identifier name, asdl_seq * bases, asdl_seq * keywords, expr_ty
         starargs, expr_ty kwargs, asdl_seq * body, asdl_seq * decorator_list,
         int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        if (!name) {
                PyErr_SetString(PyExc_ValueError,
                                "field name is required for ClassDef");
                return NULL;
        }
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = ClassDef_kind;
        p->v.ClassDef.name = name;
        p->v.ClassDef.bases = bases;
        p->v.ClassDef.keywords = keywords;
        p->v.ClassDef.starargs = starargs;
        p->v.ClassDef.kwargs = kwargs;
        p->v.ClassDef.body = body;
        p->v.ClassDef.decorator_list = decorator_list;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Return(expr_ty value, int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Return_kind;
        p->v.Return.value = value;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Delete(asdl_seq * targets, int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Delete_kind;
        p->v.Delete.targets = targets;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Assign(asdl_seq * targets, expr_ty value, int lineno, int col_offset, PyArena
       *arena)
{
        stmt_ty p;
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for Assign");
                return NULL;
        }
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Assign_kind;
        p->v.Assign.targets = targets;
        p->v.Assign.value = value;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
AugAssign(expr_ty target, operator_ty op, expr_ty value, int lineno, int
          col_offset, PyArena *arena)
{
        stmt_ty p;
        if (!target) {
                PyErr_SetString(PyExc_ValueError,
                                "field target is required for AugAssign");
                return NULL;
        }
        if (!op) {
                PyErr_SetString(PyExc_ValueError,
                                "field op is required for AugAssign");
                return NULL;
        }
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for AugAssign");
                return NULL;
        }
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = AugAssign_kind;
        p->v.AugAssign.target = target;
        p->v.AugAssign.op = op;
        p->v.AugAssign.value = value;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
For(expr_ty target, expr_ty iter, asdl_seq * body, asdl_seq * orelse, int
    lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        if (!target) {
                PyErr_SetString(PyExc_ValueError,
                                "field target is required for For");
                return NULL;
        }
        if (!iter) {
                PyErr_SetString(PyExc_ValueError,
                                "field iter is required for For");
                return NULL;
        }
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = For_kind;
        p->v.For.target = target;
        p->v.For.iter = iter;
        p->v.For.body = body;
        p->v.For.orelse = orelse;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
While(expr_ty test, asdl_seq * body, asdl_seq * orelse, int lineno, int
      col_offset, PyArena *arena)
{
        stmt_ty p;
        if (!test) {
                PyErr_SetString(PyExc_ValueError,
                                "field test is required for While");
                return NULL;
        }
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = While_kind;
        p->v.While.test = test;
        p->v.While.body = body;
        p->v.While.orelse = orelse;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
If(expr_ty test, asdl_seq * body, asdl_seq * orelse, int lineno, int
   col_offset, PyArena *arena)
{
        stmt_ty p;
        if (!test) {
                PyErr_SetString(PyExc_ValueError,
                                "field test is required for If");
                return NULL;
        }
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = If_kind;
        p->v.If.test = test;
        p->v.If.body = body;
        p->v.If.orelse = orelse;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
With(asdl_seq * items, asdl_seq * body, int lineno, int col_offset, PyArena
     *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = With_kind;
        p->v.With.items = items;
        p->v.With.body = body;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Raise(expr_ty exc, expr_ty cause, int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Raise_kind;
        p->v.Raise.exc = exc;
        p->v.Raise.cause = cause;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Try(asdl_seq * body, asdl_seq * handlers, asdl_seq * orelse, asdl_seq *
    finalbody, int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Try_kind;
        p->v.Try.body = body;
        p->v.Try.handlers = handlers;
        p->v.Try.orelse = orelse;
        p->v.Try.finalbody = finalbody;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Assert(expr_ty test, expr_ty msg, int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        if (!test) {
                PyErr_SetString(PyExc_ValueError,
                                "field test is required for Assert");
                return NULL;
        }
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Assert_kind;
        p->v.Assert.test = test;
        p->v.Assert.msg = msg;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Import(asdl_seq * names, int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Import_kind;
        p->v.Import.names = names;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
ImportFrom(identifier module, asdl_seq * names, int level, int lineno, int
           col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = ImportFrom_kind;
        p->v.ImportFrom.module = module;
        p->v.ImportFrom.names = names;
        p->v.ImportFrom.level = level;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Global(asdl_seq * names, int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Global_kind;
        p->v.Global.names = names;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Nonlocal(asdl_seq * names, int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Nonlocal_kind;
        p->v.Nonlocal.names = names;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Expr(expr_ty value, int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for Expr");
                return NULL;
        }
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Expr_kind;
        p->v.Expr.value = value;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Pass(int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Pass_kind;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Break(int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Break_kind;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

stmt_ty
Continue(int lineno, int col_offset, PyArena *arena)
{
        stmt_ty p;
        p = (stmt_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Continue_kind;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
BoolOp(boolop_ty op, asdl_seq * values, int lineno, int col_offset, PyArena
       *arena)
{
        expr_ty p;
        if (!op) {
                PyErr_SetString(PyExc_ValueError,
                                "field op is required for BoolOp");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = BoolOp_kind;
        p->v.BoolOp.op = op;
        p->v.BoolOp.values = values;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
BinOp(expr_ty left, operator_ty op, expr_ty right, int lineno, int col_offset,
      PyArena *arena)
{
        expr_ty p;
        if (!left) {
                PyErr_SetString(PyExc_ValueError,
                                "field left is required for BinOp");
                return NULL;
        }
        if (!op) {
                PyErr_SetString(PyExc_ValueError,
                                "field op is required for BinOp");
                return NULL;
        }
        if (!right) {
                PyErr_SetString(PyExc_ValueError,
                                "field right is required for BinOp");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = BinOp_kind;
        p->v.BinOp.left = left;
        p->v.BinOp.op = op;
        p->v.BinOp.right = right;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
UnaryOp(unaryop_ty op, expr_ty operand, int lineno, int col_offset, PyArena
        *arena)
{
        expr_ty p;
        if (!op) {
                PyErr_SetString(PyExc_ValueError,
                                "field op is required for UnaryOp");
                return NULL;
        }
        if (!operand) {
                PyErr_SetString(PyExc_ValueError,
                                "field operand is required for UnaryOp");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = UnaryOp_kind;
        p->v.UnaryOp.op = op;
        p->v.UnaryOp.operand = operand;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Lambda(arguments_ty args, expr_ty body, int lineno, int col_offset, PyArena
       *arena)
{
        expr_ty p;
        if (!args) {
                PyErr_SetString(PyExc_ValueError,
                                "field args is required for Lambda");
                return NULL;
        }
        if (!body) {
                PyErr_SetString(PyExc_ValueError,
                                "field body is required for Lambda");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Lambda_kind;
        p->v.Lambda.args = args;
        p->v.Lambda.body = body;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
IfExp(expr_ty test, expr_ty body, expr_ty orelse, int lineno, int col_offset,
      PyArena *arena)
{
        expr_ty p;
        if (!test) {
                PyErr_SetString(PyExc_ValueError,
                                "field test is required for IfExp");
                return NULL;
        }
        if (!body) {
                PyErr_SetString(PyExc_ValueError,
                                "field body is required for IfExp");
                return NULL;
        }
        if (!orelse) {
                PyErr_SetString(PyExc_ValueError,
                                "field orelse is required for IfExp");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = IfExp_kind;
        p->v.IfExp.test = test;
        p->v.IfExp.body = body;
        p->v.IfExp.orelse = orelse;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Dict(asdl_seq * keys, asdl_seq * values, int lineno, int col_offset, PyArena
     *arena)
{
        expr_ty p;
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Dict_kind;
        p->v.Dict.keys = keys;
        p->v.Dict.values = values;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Set(asdl_seq * elts, int lineno, int col_offset, PyArena *arena)
{
        expr_ty p;
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Set_kind;
        p->v.Set.elts = elts;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
ListComp(expr_ty elt, asdl_seq * generators, int lineno, int col_offset,
         PyArena *arena)
{
        expr_ty p;
        if (!elt) {
                PyErr_SetString(PyExc_ValueError,
                                "field elt is required for ListComp");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = ListComp_kind;
        p->v.ListComp.elt = elt;
        p->v.ListComp.generators = generators;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
SetComp(expr_ty elt, asdl_seq * generators, int lineno, int col_offset, PyArena
        *arena)
{
        expr_ty p;
        if (!elt) {
                PyErr_SetString(PyExc_ValueError,
                                "field elt is required for SetComp");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = SetComp_kind;
        p->v.SetComp.elt = elt;
        p->v.SetComp.generators = generators;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
DictComp(expr_ty key, expr_ty value, asdl_seq * generators, int lineno, int
         col_offset, PyArena *arena)
{
        expr_ty p;
        if (!key) {
                PyErr_SetString(PyExc_ValueError,
                                "field key is required for DictComp");
                return NULL;
        }
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for DictComp");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = DictComp_kind;
        p->v.DictComp.key = key;
        p->v.DictComp.value = value;
        p->v.DictComp.generators = generators;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
GeneratorExp(expr_ty elt, asdl_seq * generators, int lineno, int col_offset,
             PyArena *arena)
{
        expr_ty p;
        if (!elt) {
                PyErr_SetString(PyExc_ValueError,
                                "field elt is required for GeneratorExp");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = GeneratorExp_kind;
        p->v.GeneratorExp.elt = elt;
        p->v.GeneratorExp.generators = generators;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Yield(expr_ty value, int lineno, int col_offset, PyArena *arena)
{
        expr_ty p;
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Yield_kind;
        p->v.Yield.value = value;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
YieldFrom(expr_ty value, int lineno, int col_offset, PyArena *arena)
{
        expr_ty p;
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for YieldFrom");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = YieldFrom_kind;
        p->v.YieldFrom.value = value;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Compare(expr_ty left, asdl_int_seq * ops, asdl_seq * comparators, int lineno,
        int col_offset, PyArena *arena)
{
        expr_ty p;
        if (!left) {
                PyErr_SetString(PyExc_ValueError,
                                "field left is required for Compare");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Compare_kind;
        p->v.Compare.left = left;
        p->v.Compare.ops = ops;
        p->v.Compare.comparators = comparators;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Call(expr_ty func, asdl_seq * args, asdl_seq * keywords, expr_ty starargs,
     expr_ty kwargs, int lineno, int col_offset, PyArena *arena)
{
        expr_ty p;
        if (!func) {
                PyErr_SetString(PyExc_ValueError,
                                "field func is required for Call");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Call_kind;
        p->v.Call.func = func;
        p->v.Call.args = args;
        p->v.Call.keywords = keywords;
        p->v.Call.starargs = starargs;
        p->v.Call.kwargs = kwargs;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Num(object n, int lineno, int col_offset, PyArena *arena)
{
        expr_ty p;
        if (!n) {
                PyErr_SetString(PyExc_ValueError,
                                "field n is required for Num");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Num_kind;
        p->v.Num.n = n;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Str(string s, int lineno, int col_offset, PyArena *arena)
{
        expr_ty p;
        if (!s) {
                PyErr_SetString(PyExc_ValueError,
                                "field s is required for Str");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Str_kind;
        p->v.Str.s = s;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Bytes(bytes s, int lineno, int col_offset, PyArena *arena)
{
        expr_ty p;
        if (!s) {
                PyErr_SetString(PyExc_ValueError,
                                "field s is required for Bytes");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Bytes_kind;
        p->v.Bytes.s = s;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
NameConstant(singleton value, int lineno, int col_offset, PyArena *arena)
{
        expr_ty p;
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for NameConstant");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = NameConstant_kind;
        p->v.NameConstant.value = value;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Ellipsis(int lineno, int col_offset, PyArena *arena)
{
        expr_ty p;
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Ellipsis_kind;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Attribute(expr_ty value, identifier attr, expr_context_ty ctx, int lineno, int
          col_offset, PyArena *arena)
{
        expr_ty p;
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for Attribute");
                return NULL;
        }
        if (!attr) {
                PyErr_SetString(PyExc_ValueError,
                                "field attr is required for Attribute");
                return NULL;
        }
        if (!ctx) {
                PyErr_SetString(PyExc_ValueError,
                                "field ctx is required for Attribute");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Attribute_kind;
        p->v.Attribute.value = value;
        p->v.Attribute.attr = attr;
        p->v.Attribute.ctx = ctx;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Subscript(expr_ty value, slice_ty slice, expr_context_ty ctx, int lineno, int
          col_offset, PyArena *arena)
{
        expr_ty p;
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for Subscript");
                return NULL;
        }
        if (!slice) {
                PyErr_SetString(PyExc_ValueError,
                                "field slice is required for Subscript");
                return NULL;
        }
        if (!ctx) {
                PyErr_SetString(PyExc_ValueError,
                                "field ctx is required for Subscript");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Subscript_kind;
        p->v.Subscript.value = value;
        p->v.Subscript.slice = slice;
        p->v.Subscript.ctx = ctx;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Starred(expr_ty value, expr_context_ty ctx, int lineno, int col_offset, PyArena
        *arena)
{
        expr_ty p;
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for Starred");
                return NULL;
        }
        if (!ctx) {
                PyErr_SetString(PyExc_ValueError,
                                "field ctx is required for Starred");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Starred_kind;
        p->v.Starred.value = value;
        p->v.Starred.ctx = ctx;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Name(identifier id, expr_context_ty ctx, int lineno, int col_offset, PyArena
     *arena)
{
        expr_ty p;
        if (!id) {
                PyErr_SetString(PyExc_ValueError,
                                "field id is required for Name");
                return NULL;
        }
        if (!ctx) {
                PyErr_SetString(PyExc_ValueError,
                                "field ctx is required for Name");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Name_kind;
        p->v.Name.id = id;
        p->v.Name.ctx = ctx;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
List(asdl_seq * elts, expr_context_ty ctx, int lineno, int col_offset, PyArena
     *arena)
{
        expr_ty p;
        if (!ctx) {
                PyErr_SetString(PyExc_ValueError,
                                "field ctx is required for List");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = List_kind;
        p->v.List.elts = elts;
        p->v.List.ctx = ctx;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

expr_ty
Tuple(asdl_seq * elts, expr_context_ty ctx, int lineno, int col_offset, PyArena
      *arena)
{
        expr_ty p;
        if (!ctx) {
                PyErr_SetString(PyExc_ValueError,
                                "field ctx is required for Tuple");
                return NULL;
        }
        p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Tuple_kind;
        p->v.Tuple.elts = elts;
        p->v.Tuple.ctx = ctx;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

slice_ty
Slice(expr_ty lower, expr_ty upper, expr_ty step, PyArena *arena)
{
        slice_ty p;
        p = (slice_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Slice_kind;
        p->v.Slice.lower = lower;
        p->v.Slice.upper = upper;
        p->v.Slice.step = step;
        return p;
}

slice_ty
ExtSlice(asdl_seq * dims, PyArena *arena)
{
        slice_ty p;
        p = (slice_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = ExtSlice_kind;
        p->v.ExtSlice.dims = dims;
        return p;
}

slice_ty
Index(expr_ty value, PyArena *arena)
{
        slice_ty p;
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for Index");
                return NULL;
        }
        p = (slice_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = Index_kind;
        p->v.Index.value = value;
        return p;
}

comprehension_ty
comprehension(expr_ty target, expr_ty iter, asdl_seq * ifs, PyArena *arena)
{
        comprehension_ty p;
        if (!target) {
                PyErr_SetString(PyExc_ValueError,
                                "field target is required for comprehension");
                return NULL;
        }
        if (!iter) {
                PyErr_SetString(PyExc_ValueError,
                                "field iter is required for comprehension");
                return NULL;
        }
        p = (comprehension_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->target = target;
        p->iter = iter;
        p->ifs = ifs;
        return p;
}

excepthandler_ty
ExceptHandler(expr_ty type, identifier name, asdl_seq * body, int lineno, int
              col_offset, PyArena *arena)
{
        excepthandler_ty p;
        p = (excepthandler_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->kind = ExceptHandler_kind;
        p->v.ExceptHandler.type = type;
        p->v.ExceptHandler.name = name;
        p->v.ExceptHandler.body = body;
        p->lineno = lineno;
        p->col_offset = col_offset;
        return p;
}

arguments_ty
arguments(asdl_seq * args, identifier vararg, expr_ty varargannotation,
          asdl_seq * kwonlyargs, identifier kwarg, expr_ty kwargannotation,
          asdl_seq * defaults, asdl_seq * kw_defaults, PyArena *arena)
{
        arguments_ty p;
        p = (arguments_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->args = args;
        p->vararg = vararg;
        p->varargannotation = varargannotation;
        p->kwonlyargs = kwonlyargs;
        p->kwarg = kwarg;
        p->kwargannotation = kwargannotation;
        p->defaults = defaults;
        p->kw_defaults = kw_defaults;
        return p;
}

arg_ty
arg(identifier arg, expr_ty annotation, PyArena *arena)
{
        arg_ty p;
        if (!arg) {
                PyErr_SetString(PyExc_ValueError,
                                "field arg is required for arg");
                return NULL;
        }
        p = (arg_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->arg = arg;
        p->annotation = annotation;
        return p;
}

keyword_ty
keyword(identifier arg, expr_ty value, PyArena *arena)
{
        keyword_ty p;
        if (!arg) {
                PyErr_SetString(PyExc_ValueError,
                                "field arg is required for keyword");
                return NULL;
        }
        if (!value) {
                PyErr_SetString(PyExc_ValueError,
                                "field value is required for keyword");
                return NULL;
        }
        p = (keyword_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->arg = arg;
        p->value = value;
        return p;
}

alias_ty
alias(identifier name, identifier asname, PyArena *arena)
{
        alias_ty p;
        if (!name) {
                PyErr_SetString(PyExc_ValueError,
                                "field name is required for alias");
                return NULL;
        }
        p = (alias_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->name = name;
        p->asname = asname;
        return p;
}

withitem_ty
withitem(expr_ty context_expr, expr_ty optional_vars, PyArena *arena)
{
        withitem_ty p;
        if (!context_expr) {
                PyErr_SetString(PyExc_ValueError,
                                "field context_expr is required for withitem");
                return NULL;
        }
        p = (withitem_ty)PyArena_Malloc(arena, sizeof(*p));
        if (!p)
                return NULL;
        p->context_expr = context_expr;
        p->optional_vars = optional_vars;
        return p;
}


PyObject*
ast2obj_mod(void* _o)
{
        mod_ty o = (mod_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        switch (o->kind) {
        case Module_kind:
                result = PyType_GenericNew(Module_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Module.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Interactive_kind:
                result = PyType_GenericNew(Interactive_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Interactive.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Expression_kind:
                result = PyType_GenericNew(Expression_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Expression.body);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Suite_kind:
                result = PyType_GenericNew(Suite_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Suite.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        }
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}

PyObject*
ast2obj_stmt(void* _o)
{
        stmt_ty o = (stmt_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        switch (o->kind) {
        case FunctionDef_kind:
                result = PyType_GenericNew(FunctionDef_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_identifier(o->v.FunctionDef.name);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_name, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_arguments(o->v.FunctionDef.args);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_args, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.FunctionDef.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.FunctionDef.decorator_list,
                                     ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_decorator_list, value) ==
                    -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.FunctionDef.returns);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_returns, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case ClassDef_kind:
                result = PyType_GenericNew(ClassDef_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_identifier(o->v.ClassDef.name);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_name, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.ClassDef.bases, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_bases, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.ClassDef.keywords, ast2obj_keyword);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_keywords, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.ClassDef.starargs);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_starargs, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.ClassDef.kwargs);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_kwargs, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.ClassDef.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.ClassDef.decorator_list,
                                     ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_decorator_list, value) ==
                    -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Return_kind:
                result = PyType_GenericNew(Return_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Return.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Delete_kind:
                result = PyType_GenericNew(Delete_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Delete.targets, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_targets, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Assign_kind:
                result = PyType_GenericNew(Assign_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Assign.targets, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_targets, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.Assign.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case AugAssign_kind:
                result = PyType_GenericNew(AugAssign_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.AugAssign.target);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_target, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_operator(o->v.AugAssign.op);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_op, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.AugAssign.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case For_kind:
                result = PyType_GenericNew(For_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.For.target);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_target, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.For.iter);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_iter, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.For.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.For.orelse, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_orelse, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case While_kind:
                result = PyType_GenericNew(While_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.While.test);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_test, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.While.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.While.orelse, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_orelse, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case If_kind:
                result = PyType_GenericNew(If_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.If.test);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_test, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.If.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.If.orelse, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_orelse, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case With_kind:
                result = PyType_GenericNew(With_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.With.items, ast2obj_withitem);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_items, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.With.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Raise_kind:
                result = PyType_GenericNew(Raise_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Raise.exc);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_exc, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.Raise.cause);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_cause, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Try_kind:
                result = PyType_GenericNew(Try_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Try.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.Try.handlers, ast2obj_excepthandler);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_handlers, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.Try.orelse, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_orelse, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.Try.finalbody, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_finalbody, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Assert_kind:
                result = PyType_GenericNew(Assert_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Assert.test);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_test, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.Assert.msg);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_msg, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Import_kind:
                result = PyType_GenericNew(Import_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Import.names, ast2obj_alias);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_names, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case ImportFrom_kind:
                result = PyType_GenericNew(ImportFrom_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_identifier(o->v.ImportFrom.module);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_module, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.ImportFrom.names, ast2obj_alias);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_names, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_int(o->v.ImportFrom.level);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_level, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Global_kind:
                result = PyType_GenericNew(Global_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Global.names, ast2obj_identifier);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_names, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Nonlocal_kind:
                result = PyType_GenericNew(Nonlocal_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Nonlocal.names, ast2obj_identifier);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_names, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Expr_kind:
                result = PyType_GenericNew(Expr_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Expr.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Pass_kind:
                result = PyType_GenericNew(Pass_type, NULL, NULL);
                if (!result) goto failed;
                break;
        case Break_kind:
                result = PyType_GenericNew(Break_type, NULL, NULL);
                if (!result) goto failed;
                break;
        case Continue_kind:
                result = PyType_GenericNew(Continue_type, NULL, NULL);
                if (!result) goto failed;
                break;
        }
        value = ast2obj_int(o->lineno);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_lineno, value) < 0)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_int(o->col_offset);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_col_offset, value) < 0)
                goto failed;
        Py_DECREF(value);
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}

PyObject*
ast2obj_expr(void* _o)
{
        expr_ty o = (expr_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        switch (o->kind) {
        case BoolOp_kind:
                result = PyType_GenericNew(BoolOp_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_boolop(o->v.BoolOp.op);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_op, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.BoolOp.values, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_values, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case BinOp_kind:
                result = PyType_GenericNew(BinOp_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.BinOp.left);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_left, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_operator(o->v.BinOp.op);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_op, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.BinOp.right);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_right, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case UnaryOp_kind:
                result = PyType_GenericNew(UnaryOp_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_unaryop(o->v.UnaryOp.op);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_op, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.UnaryOp.operand);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_operand, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Lambda_kind:
                result = PyType_GenericNew(Lambda_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_arguments(o->v.Lambda.args);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_args, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.Lambda.body);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case IfExp_kind:
                result = PyType_GenericNew(IfExp_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.IfExp.test);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_test, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.IfExp.body);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.IfExp.orelse);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_orelse, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Dict_kind:
                result = PyType_GenericNew(Dict_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Dict.keys, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_keys, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.Dict.values, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_values, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Set_kind:
                result = PyType_GenericNew(Set_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Set.elts, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_elts, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case ListComp_kind:
                result = PyType_GenericNew(ListComp_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.ListComp.elt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_elt, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.ListComp.generators,
                                     ast2obj_comprehension);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_generators, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case SetComp_kind:
                result = PyType_GenericNew(SetComp_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.SetComp.elt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_elt, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.SetComp.generators,
                                     ast2obj_comprehension);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_generators, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case DictComp_kind:
                result = PyType_GenericNew(DictComp_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.DictComp.key);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_key, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.DictComp.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.DictComp.generators,
                                     ast2obj_comprehension);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_generators, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case GeneratorExp_kind:
                result = PyType_GenericNew(GeneratorExp_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.GeneratorExp.elt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_elt, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.GeneratorExp.generators,
                                     ast2obj_comprehension);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_generators, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Yield_kind:
                result = PyType_GenericNew(Yield_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Yield.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case YieldFrom_kind:
                result = PyType_GenericNew(YieldFrom_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.YieldFrom.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Compare_kind:
                result = PyType_GenericNew(Compare_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Compare.left);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_left, value) == -1)
                        goto failed;
                Py_DECREF(value);
                {
                        Py_ssize_t i, n = asdl_seq_LEN(o->v.Compare.ops);
                        value = PyList_New(n);
                        if (!value) goto failed;
                        for(i = 0; i < n; i++)
                                PyList_SET_ITEM(value, i, ast2obj_cmpop((cmpop_ty)asdl_seq_GET(o->v.Compare.ops, i)));
                }
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_ops, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.Compare.comparators, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_comparators, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Call_kind:
                result = PyType_GenericNew(Call_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Call.func);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_func, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.Call.args, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_args, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.Call.keywords, ast2obj_keyword);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_keywords, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.Call.starargs);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_starargs, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.Call.kwargs);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_kwargs, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Num_kind:
                result = PyType_GenericNew(Num_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_object(o->v.Num.n);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_n, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Str_kind:
                result = PyType_GenericNew(Str_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_string(o->v.Str.s);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_s, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Bytes_kind:
                result = PyType_GenericNew(Bytes_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_bytes(o->v.Bytes.s);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_s, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case NameConstant_kind:
                result = PyType_GenericNew(NameConstant_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_singleton(o->v.NameConstant.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Ellipsis_kind:
                result = PyType_GenericNew(Ellipsis_type, NULL, NULL);
                if (!result) goto failed;
                break;
        case Attribute_kind:
                result = PyType_GenericNew(Attribute_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Attribute.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_identifier(o->v.Attribute.attr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_attr, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr_context(o->v.Attribute.ctx);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_ctx, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Subscript_kind:
                result = PyType_GenericNew(Subscript_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Subscript.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_slice(o->v.Subscript.slice);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_slice, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr_context(o->v.Subscript.ctx);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_ctx, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Starred_kind:
                result = PyType_GenericNew(Starred_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Starred.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr_context(o->v.Starred.ctx);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_ctx, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Name_kind:
                result = PyType_GenericNew(Name_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_identifier(o->v.Name.id);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_id, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr_context(o->v.Name.ctx);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_ctx, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case List_kind:
                result = PyType_GenericNew(List_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.List.elts, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_elts, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr_context(o->v.List.ctx);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_ctx, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Tuple_kind:
                result = PyType_GenericNew(Tuple_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.Tuple.elts, ast2obj_expr);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_elts, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr_context(o->v.Tuple.ctx);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_ctx, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        }
        value = ast2obj_int(o->lineno);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_lineno, value) < 0)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_int(o->col_offset);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_col_offset, value) < 0)
                goto failed;
        Py_DECREF(value);
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}

PyObject* ast2obj_expr_context(expr_context_ty o)
{
        switch(o) {
                case Load:
                        Py_INCREF(Load_singleton);
                        return Load_singleton;
                case Store:
                        Py_INCREF(Store_singleton);
                        return Store_singleton;
                case Del:
                        Py_INCREF(Del_singleton);
                        return Del_singleton;
                case AugLoad:
                        Py_INCREF(AugLoad_singleton);
                        return AugLoad_singleton;
                case AugStore:
                        Py_INCREF(AugStore_singleton);
                        return AugStore_singleton;
                case Param:
                        Py_INCREF(Param_singleton);
                        return Param_singleton;
                default:
                        /* should never happen, but just in case ... */
                        PyErr_Format(PyExc_SystemError, "unknown expr_context found");
                        return NULL;
        }
}
PyObject*
ast2obj_slice(void* _o)
{
        slice_ty o = (slice_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        switch (o->kind) {
        case Slice_kind:
                result = PyType_GenericNew(Slice_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Slice.lower);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_lower, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.Slice.upper);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_upper, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_expr(o->v.Slice.step);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_step, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case ExtSlice_kind:
                result = PyType_GenericNew(ExtSlice_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_list(o->v.ExtSlice.dims, ast2obj_slice);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_dims, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        case Index_kind:
                result = PyType_GenericNew(Index_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.Index.value);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        }
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}

PyObject* ast2obj_boolop(boolop_ty o)
{
        switch(o) {
                case And:
                        Py_INCREF(And_singleton);
                        return And_singleton;
                case Or:
                        Py_INCREF(Or_singleton);
                        return Or_singleton;
                default:
                        /* should never happen, but just in case ... */
                        PyErr_Format(PyExc_SystemError, "unknown boolop found");
                        return NULL;
        }
}
PyObject* ast2obj_operator(operator_ty o)
{
        switch(o) {
                case Add:
                        Py_INCREF(Add_singleton);
                        return Add_singleton;
                case Sub:
                        Py_INCREF(Sub_singleton);
                        return Sub_singleton;
                case Mult:
                        Py_INCREF(Mult_singleton);
                        return Mult_singleton;
                case Div:
                        Py_INCREF(Div_singleton);
                        return Div_singleton;
                case Mod:
                        Py_INCREF(Mod_singleton);
                        return Mod_singleton;
                case Pow:
                        Py_INCREF(Pow_singleton);
                        return Pow_singleton;
                case LShift:
                        Py_INCREF(LShift_singleton);
                        return LShift_singleton;
                case RShift:
                        Py_INCREF(RShift_singleton);
                        return RShift_singleton;
                case BitOr:
                        Py_INCREF(BitOr_singleton);
                        return BitOr_singleton;
                case BitXor:
                        Py_INCREF(BitXor_singleton);
                        return BitXor_singleton;
                case BitAnd:
                        Py_INCREF(BitAnd_singleton);
                        return BitAnd_singleton;
                case FloorDiv:
                        Py_INCREF(FloorDiv_singleton);
                        return FloorDiv_singleton;
                default:
                        /* should never happen, but just in case ... */
                        PyErr_Format(PyExc_SystemError, "unknown operator found");
                        return NULL;
        }
}
PyObject* ast2obj_unaryop(unaryop_ty o)
{
        switch(o) {
                case Invert:
                        Py_INCREF(Invert_singleton);
                        return Invert_singleton;
                case Not:
                        Py_INCREF(Not_singleton);
                        return Not_singleton;
                case UAdd:
                        Py_INCREF(UAdd_singleton);
                        return UAdd_singleton;
                case USub:
                        Py_INCREF(USub_singleton);
                        return USub_singleton;
                default:
                        /* should never happen, but just in case ... */
                        PyErr_Format(PyExc_SystemError, "unknown unaryop found");
                        return NULL;
        }
}
PyObject* ast2obj_cmpop(cmpop_ty o)
{
        switch(o) {
                case Eq:
                        Py_INCREF(Eq_singleton);
                        return Eq_singleton;
                case NotEq:
                        Py_INCREF(NotEq_singleton);
                        return NotEq_singleton;
                case Lt:
                        Py_INCREF(Lt_singleton);
                        return Lt_singleton;
                case LtE:
                        Py_INCREF(LtE_singleton);
                        return LtE_singleton;
                case Gt:
                        Py_INCREF(Gt_singleton);
                        return Gt_singleton;
                case GtE:
                        Py_INCREF(GtE_singleton);
                        return GtE_singleton;
                case Is:
                        Py_INCREF(Is_singleton);
                        return Is_singleton;
                case IsNot:
                        Py_INCREF(IsNot_singleton);
                        return IsNot_singleton;
                case In:
                        Py_INCREF(In_singleton);
                        return In_singleton;
                case NotIn:
                        Py_INCREF(NotIn_singleton);
                        return NotIn_singleton;
                default:
                        /* should never happen, but just in case ... */
                        PyErr_Format(PyExc_SystemError, "unknown cmpop found");
                        return NULL;
        }
}
PyObject*
ast2obj_comprehension(void* _o)
{
        comprehension_ty o = (comprehension_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        result = PyType_GenericNew(comprehension_type, NULL, NULL);
        if (!result) return NULL;
        value = ast2obj_expr(o->target);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_target, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(o->iter);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_iter, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_list(o->ifs, ast2obj_expr);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_ifs, value) == -1)
                goto failed;
        Py_DECREF(value);
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}

PyObject*
ast2obj_excepthandler(void* _o)
{
        excepthandler_ty o = (excepthandler_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        switch (o->kind) {
        case ExceptHandler_kind:
                result = PyType_GenericNew(ExceptHandler_type, NULL, NULL);
                if (!result) goto failed;
                value = ast2obj_expr(o->v.ExceptHandler.type);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_type, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_identifier(o->v.ExceptHandler.name);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_name, value) == -1)
                        goto failed;
                Py_DECREF(value);
                value = ast2obj_list(o->v.ExceptHandler.body, ast2obj_stmt);
                if (!value) goto failed;
                if (_PyObject_SetAttrId(result, &PyId_body, value) == -1)
                        goto failed;
                Py_DECREF(value);
                break;
        }
        value = ast2obj_int(o->lineno);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_lineno, value) < 0)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_int(o->col_offset);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_col_offset, value) < 0)
                goto failed;
        Py_DECREF(value);
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}

PyObject*
ast2obj_arguments(void* _o)
{
        arguments_ty o = (arguments_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        result = PyType_GenericNew(arguments_type, NULL, NULL);
        if (!result) return NULL;
        value = ast2obj_list(o->args, ast2obj_arg);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_args, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(o->vararg);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_vararg, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(o->varargannotation);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_varargannotation, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_list(o->kwonlyargs, ast2obj_arg);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_kwonlyargs, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(o->kwarg);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_kwarg, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(o->kwargannotation);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_kwargannotation, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_list(o->defaults, ast2obj_expr);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_defaults, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_list(o->kw_defaults, ast2obj_expr);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_kw_defaults, value) == -1)
                goto failed;
        Py_DECREF(value);
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}

PyObject*
ast2obj_arg(void* _o)
{
        arg_ty o = (arg_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        result = PyType_GenericNew(arg_type, NULL, NULL);
        if (!result) return NULL;
        value = ast2obj_identifier(o->arg);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_arg, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(o->annotation);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_annotation, value) == -1)
                goto failed;
        Py_DECREF(value);
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}

PyObject*
ast2obj_keyword(void* _o)
{
        keyword_ty o = (keyword_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        result = PyType_GenericNew(keyword_type, NULL, NULL);
        if (!result) return NULL;
        value = ast2obj_identifier(o->arg);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_arg, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(o->value);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_value, value) == -1)
                goto failed;
        Py_DECREF(value);
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}

PyObject*
ast2obj_alias(void* _o)
{
        alias_ty o = (alias_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        result = PyType_GenericNew(alias_type, NULL, NULL);
        if (!result) return NULL;
        value = ast2obj_identifier(o->name);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_name, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_identifier(o->asname);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_asname, value) == -1)
                goto failed;
        Py_DECREF(value);
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}

PyObject*
ast2obj_withitem(void* _o)
{
        withitem_ty o = (withitem_ty)_o;
        PyObject *result = NULL, *value = NULL;
        if (!o) {
                Py_INCREF(Py_None);
                return Py_None;
        }

        result = PyType_GenericNew(withitem_type, NULL, NULL);
        if (!result) return NULL;
        value = ast2obj_expr(o->context_expr);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_context_expr, value) == -1)
                goto failed;
        Py_DECREF(value);
        value = ast2obj_expr(o->optional_vars);
        if (!value) goto failed;
        if (_PyObject_SetAttrId(result, &PyId_optional_vars, value) == -1)
                goto failed;
        Py_DECREF(value);
        return result;
failed:
        Py_XDECREF(value);
        Py_XDECREF(result);
        return NULL;
}


int
obj2ast_mod(PyObject* obj, mod_ty* out, PyArena* arena)
{
        int isinstance;

        PyObject *tmp = NULL;

        if (obj == Py_None) {
                *out = NULL;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Module_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* body;

                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Module field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from Module");
                        return 1;
                }
                *out = Module(body, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Interactive_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* body;

                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Interactive field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from Interactive");
                        return 1;
                }
                *out = Interactive(body, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Expression_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty body;

                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &body, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from Expression");
                        return 1;
                }
                *out = Expression(body, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Suite_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* body;

                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Suite field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from Suite");
                        return 1;
                }
                *out = Suite(body, arena);
                if (*out == NULL) goto failed;
                return 0;
        }

        PyErr_Format(PyExc_TypeError, "expected some sort of mod, but got %R", obj);
        failed:
        Py_XDECREF(tmp);
        return 1;
}

int
obj2ast_stmt(PyObject* obj, stmt_ty* out, PyArena* arena)
{
        int isinstance;

        PyObject *tmp = NULL;
        int lineno;
        int col_offset;

        if (obj == Py_None) {
                *out = NULL;
                return 0;
        }
        if (_PyObject_HasAttrId(obj, &PyId_lineno)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_lineno);
                if (tmp == NULL) goto failed;
                res = obj2ast_int(tmp, &lineno, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from stmt");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_col_offset)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_col_offset);
                if (tmp == NULL) goto failed;
                res = obj2ast_int(tmp, &col_offset, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from stmt");
                return 1;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)FunctionDef_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                identifier name;
                arguments_ty args;
                asdl_seq* body;
                asdl_seq* decorator_list;
                expr_ty returns;

                if (_PyObject_HasAttrId(obj, &PyId_name)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_name);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_identifier(tmp, &name, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from FunctionDef");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_args)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_args);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_arguments(tmp, &args, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"args\" missing from FunctionDef");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "FunctionDef field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from FunctionDef");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_decorator_list)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_decorator_list);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "FunctionDef field \"decorator_list\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        decorator_list = asdl_seq_new(len, arena);
                        if (decorator_list == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(decorator_list, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"decorator_list\" missing from FunctionDef");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_returns)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_returns);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &returns, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        returns = NULL;
                }
                *out = FunctionDef(name, args, body, decorator_list, returns,
                                   lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)ClassDef_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                identifier name;
                asdl_seq* bases;
                asdl_seq* keywords;
                expr_ty starargs;
                expr_ty kwargs;
                asdl_seq* body;
                asdl_seq* decorator_list;

                if (_PyObject_HasAttrId(obj, &PyId_name)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_name);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_identifier(tmp, &name, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from ClassDef");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_bases)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_bases);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "ClassDef field \"bases\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        bases = asdl_seq_new(len, arena);
                        if (bases == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(bases, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"bases\" missing from ClassDef");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_keywords)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_keywords);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "ClassDef field \"keywords\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        keywords = asdl_seq_new(len, arena);
                        if (keywords == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                keyword_ty value;
                                res = obj2ast_keyword(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(keywords, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"keywords\" missing from ClassDef");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_starargs)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_starargs);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &starargs, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        starargs = NULL;
                }
                if (_PyObject_HasAttrId(obj, &PyId_kwargs)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_kwargs);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &kwargs, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        kwargs = NULL;
                }
                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "ClassDef field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from ClassDef");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_decorator_list)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_decorator_list);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "ClassDef field \"decorator_list\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        decorator_list = asdl_seq_new(len, arena);
                        if (decorator_list == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(decorator_list, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"decorator_list\" missing from ClassDef");
                        return 1;
                }
                *out = ClassDef(name, bases, keywords, starargs, kwargs, body,
                                decorator_list, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Return_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty value;

                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        value = NULL;
                }
                *out = Return(value, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Delete_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* targets;

                if (_PyObject_HasAttrId(obj, &PyId_targets)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_targets);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Delete field \"targets\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        targets = asdl_seq_new(len, arena);
                        if (targets == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(targets, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"targets\" missing from Delete");
                        return 1;
                }
                *out = Delete(targets, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Assign_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* targets;
                expr_ty value;

                if (_PyObject_HasAttrId(obj, &PyId_targets)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_targets);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Assign field \"targets\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        targets = asdl_seq_new(len, arena);
                        if (targets == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(targets, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"targets\" missing from Assign");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Assign");
                        return 1;
                }
                *out = Assign(targets, value, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)AugAssign_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty target;
                operator_ty op;
                expr_ty value;

                if (_PyObject_HasAttrId(obj, &PyId_target)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_target);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &target, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from AugAssign");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_op)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_op);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_operator(tmp, &op, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from AugAssign");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from AugAssign");
                        return 1;
                }
                *out = AugAssign(target, op, value, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)For_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty target;
                expr_ty iter;
                asdl_seq* body;
                asdl_seq* orelse;

                if (_PyObject_HasAttrId(obj, &PyId_target)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_target);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &target, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from For");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_iter)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_iter);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &iter, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"iter\" missing from For");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "For field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from For");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_orelse)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_orelse);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "For field \"orelse\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        orelse = asdl_seq_new(len, arena);
                        if (orelse == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(orelse, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"orelse\" missing from For");
                        return 1;
                }
                *out = For(target, iter, body, orelse, lineno, col_offset,
                           arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)While_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty test;
                asdl_seq* body;
                asdl_seq* orelse;

                if (_PyObject_HasAttrId(obj, &PyId_test)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_test);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &test, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from While");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "While field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from While");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_orelse)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_orelse);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "While field \"orelse\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        orelse = asdl_seq_new(len, arena);
                        if (orelse == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(orelse, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"orelse\" missing from While");
                        return 1;
                }
                *out = While(test, body, orelse, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)If_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty test;
                asdl_seq* body;
                asdl_seq* orelse;

                if (_PyObject_HasAttrId(obj, &PyId_test)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_test);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &test, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from If");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "If field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from If");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_orelse)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_orelse);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "If field \"orelse\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        orelse = asdl_seq_new(len, arena);
                        if (orelse == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(orelse, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"orelse\" missing from If");
                        return 1;
                }
                *out = If(test, body, orelse, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)With_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* items;
                asdl_seq* body;

                if (_PyObject_HasAttrId(obj, &PyId_items)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_items);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "With field \"items\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        items = asdl_seq_new(len, arena);
                        if (items == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                withitem_ty value;
                                res = obj2ast_withitem(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(items, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"items\" missing from With");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "With field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from With");
                        return 1;
                }
                *out = With(items, body, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Raise_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty exc;
                expr_ty cause;

                if (_PyObject_HasAttrId(obj, &PyId_exc)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_exc);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &exc, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        exc = NULL;
                }
                if (_PyObject_HasAttrId(obj, &PyId_cause)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_cause);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &cause, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        cause = NULL;
                }
                *out = Raise(exc, cause, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Try_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* body;
                asdl_seq* handlers;
                asdl_seq* orelse;
                asdl_seq* finalbody;

                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Try field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from Try");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_handlers)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_handlers);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Try field \"handlers\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        handlers = asdl_seq_new(len, arena);
                        if (handlers == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                excepthandler_ty value;
                                res = obj2ast_excepthandler(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(handlers, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"handlers\" missing from Try");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_orelse)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_orelse);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Try field \"orelse\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        orelse = asdl_seq_new(len, arena);
                        if (orelse == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(orelse, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"orelse\" missing from Try");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_finalbody)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_finalbody);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Try field \"finalbody\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        finalbody = asdl_seq_new(len, arena);
                        if (finalbody == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(finalbody, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"finalbody\" missing from Try");
                        return 1;
                }
                *out = Try(body, handlers, orelse, finalbody, lineno,
                           col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Assert_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty test;
                expr_ty msg;

                if (_PyObject_HasAttrId(obj, &PyId_test)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_test);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &test, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from Assert");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_msg)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_msg);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &msg, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        msg = NULL;
                }
                *out = Assert(test, msg, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Import_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* names;

                if (_PyObject_HasAttrId(obj, &PyId_names)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_names);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Import field \"names\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        names = asdl_seq_new(len, arena);
                        if (names == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                alias_ty value;
                                res = obj2ast_alias(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(names, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"names\" missing from Import");
                        return 1;
                }
                *out = Import(names, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)ImportFrom_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                identifier module;
                asdl_seq* names;
                int level;

                if (_PyObject_HasAttrId(obj, &PyId_module)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_module);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_identifier(tmp, &module, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        module = NULL;
                }
                if (_PyObject_HasAttrId(obj, &PyId_names)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_names);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "ImportFrom field \"names\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        names = asdl_seq_new(len, arena);
                        if (names == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                alias_ty value;
                                res = obj2ast_alias(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(names, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"names\" missing from ImportFrom");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_level)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_level);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_int(tmp, &level, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        level = 0;
                }
                *out = ImportFrom(module, names, level, lineno, col_offset,
                                  arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Global_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* names;

                if (_PyObject_HasAttrId(obj, &PyId_names)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_names);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Global field \"names\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        names = asdl_seq_new(len, arena);
                        if (names == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                identifier value;
                                res = obj2ast_identifier(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(names, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"names\" missing from Global");
                        return 1;
                }
                *out = Global(names, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Nonlocal_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* names;

                if (_PyObject_HasAttrId(obj, &PyId_names)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_names);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Nonlocal field \"names\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        names = asdl_seq_new(len, arena);
                        if (names == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                identifier value;
                                res = obj2ast_identifier(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(names, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"names\" missing from Nonlocal");
                        return 1;
                }
                *out = Nonlocal(names, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Expr_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty value;

                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Expr");
                        return 1;
                }
                *out = Expr(value, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Pass_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {

                *out = Pass(lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Break_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {

                *out = Break(lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Continue_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {

                *out = Continue(lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }

        PyErr_Format(PyExc_TypeError, "expected some sort of stmt, but got %R", obj);
        failed:
        Py_XDECREF(tmp);
        return 1;
}

int
obj2ast_expr(PyObject* obj, expr_ty* out, PyArena* arena)
{
        int isinstance;

        PyObject *tmp = NULL;
        int lineno;
        int col_offset;

        if (obj == Py_None) {
                *out = NULL;
                return 0;
        }
        if (_PyObject_HasAttrId(obj, &PyId_lineno)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_lineno);
                if (tmp == NULL) goto failed;
                res = obj2ast_int(tmp, &lineno, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from expr");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_col_offset)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_col_offset);
                if (tmp == NULL) goto failed;
                res = obj2ast_int(tmp, &col_offset, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from expr");
                return 1;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)BoolOp_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                boolop_ty op;
                asdl_seq* values;

                if (_PyObject_HasAttrId(obj, &PyId_op)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_op);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_boolop(tmp, &op, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from BoolOp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_values)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_values);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "BoolOp field \"values\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        values = asdl_seq_new(len, arena);
                        if (values == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(values, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"values\" missing from BoolOp");
                        return 1;
                }
                *out = BoolOp(op, values, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)BinOp_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty left;
                operator_ty op;
                expr_ty right;

                if (_PyObject_HasAttrId(obj, &PyId_left)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_left);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &left, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"left\" missing from BinOp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_op)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_op);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_operator(tmp, &op, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from BinOp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_right)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_right);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &right, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"right\" missing from BinOp");
                        return 1;
                }
                *out = BinOp(left, op, right, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)UnaryOp_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                unaryop_ty op;
                expr_ty operand;

                if (_PyObject_HasAttrId(obj, &PyId_op)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_op);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_unaryop(tmp, &op, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"op\" missing from UnaryOp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_operand)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_operand);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &operand, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"operand\" missing from UnaryOp");
                        return 1;
                }
                *out = UnaryOp(op, operand, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Lambda_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                arguments_ty args;
                expr_ty body;

                if (_PyObject_HasAttrId(obj, &PyId_args)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_args);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_arguments(tmp, &args, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"args\" missing from Lambda");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &body, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from Lambda");
                        return 1;
                }
                *out = Lambda(args, body, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)IfExp_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty test;
                expr_ty body;
                expr_ty orelse;

                if (_PyObject_HasAttrId(obj, &PyId_test)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_test);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &test, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"test\" missing from IfExp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &body, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from IfExp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_orelse)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_orelse);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &orelse, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"orelse\" missing from IfExp");
                        return 1;
                }
                *out = IfExp(test, body, orelse, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Dict_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* keys;
                asdl_seq* values;

                if (_PyObject_HasAttrId(obj, &PyId_keys)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_keys);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Dict field \"keys\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        keys = asdl_seq_new(len, arena);
                        if (keys == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(keys, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"keys\" missing from Dict");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_values)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_values);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Dict field \"values\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        values = asdl_seq_new(len, arena);
                        if (values == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(values, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"values\" missing from Dict");
                        return 1;
                }
                *out = Dict(keys, values, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Set_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* elts;

                if (_PyObject_HasAttrId(obj, &PyId_elts)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_elts);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Set field \"elts\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        elts = asdl_seq_new(len, arena);
                        if (elts == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(elts, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"elts\" missing from Set");
                        return 1;
                }
                *out = Set(elts, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)ListComp_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty elt;
                asdl_seq* generators;

                if (_PyObject_HasAttrId(obj, &PyId_elt)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_elt);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &elt, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"elt\" missing from ListComp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_generators)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_generators);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "ListComp field \"generators\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        generators = asdl_seq_new(len, arena);
                        if (generators == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                comprehension_ty value;
                                res = obj2ast_comprehension(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(generators, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"generators\" missing from ListComp");
                        return 1;
                }
                *out = ListComp(elt, generators, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)SetComp_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty elt;
                asdl_seq* generators;

                if (_PyObject_HasAttrId(obj, &PyId_elt)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_elt);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &elt, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"elt\" missing from SetComp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_generators)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_generators);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "SetComp field \"generators\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        generators = asdl_seq_new(len, arena);
                        if (generators == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                comprehension_ty value;
                                res = obj2ast_comprehension(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(generators, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"generators\" missing from SetComp");
                        return 1;
                }
                *out = SetComp(elt, generators, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)DictComp_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty key;
                expr_ty value;
                asdl_seq* generators;

                if (_PyObject_HasAttrId(obj, &PyId_key)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_key);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &key, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"key\" missing from DictComp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from DictComp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_generators)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_generators);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "DictComp field \"generators\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        generators = asdl_seq_new(len, arena);
                        if (generators == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                comprehension_ty value;
                                res = obj2ast_comprehension(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(generators, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"generators\" missing from DictComp");
                        return 1;
                }
                *out = DictComp(key, value, generators, lineno, col_offset,
                                arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)GeneratorExp_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty elt;
                asdl_seq* generators;

                if (_PyObject_HasAttrId(obj, &PyId_elt)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_elt);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &elt, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"elt\" missing from GeneratorExp");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_generators)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_generators);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "GeneratorExp field \"generators\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        generators = asdl_seq_new(len, arena);
                        if (generators == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                comprehension_ty value;
                                res = obj2ast_comprehension(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(generators, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"generators\" missing from GeneratorExp");
                        return 1;
                }
                *out = GeneratorExp(elt, generators, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Yield_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty value;

                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        value = NULL;
                }
                *out = Yield(value, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)YieldFrom_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty value;

                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from YieldFrom");
                        return 1;
                }
                *out = YieldFrom(value, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Compare_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty left;
                asdl_int_seq* ops;
                asdl_seq* comparators;

                if (_PyObject_HasAttrId(obj, &PyId_left)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_left);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &left, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"left\" missing from Compare");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_ops)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_ops);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Compare field \"ops\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        ops = asdl_int_seq_new(len, arena);
                        if (ops == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                cmpop_ty value;
                                res = obj2ast_cmpop(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(ops, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"ops\" missing from Compare");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_comparators)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_comparators);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Compare field \"comparators\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        comparators = asdl_seq_new(len, arena);
                        if (comparators == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(comparators, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"comparators\" missing from Compare");
                        return 1;
                }
                *out = Compare(left, ops, comparators, lineno, col_offset,
                               arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Call_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty func;
                asdl_seq* args;
                asdl_seq* keywords;
                expr_ty starargs;
                expr_ty kwargs;

                if (_PyObject_HasAttrId(obj, &PyId_func)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_func);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &func, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"func\" missing from Call");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_args)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_args);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Call field \"args\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        args = asdl_seq_new(len, arena);
                        if (args == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(args, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"args\" missing from Call");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_keywords)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_keywords);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Call field \"keywords\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        keywords = asdl_seq_new(len, arena);
                        if (keywords == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                keyword_ty value;
                                res = obj2ast_keyword(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(keywords, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"keywords\" missing from Call");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_starargs)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_starargs);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &starargs, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        starargs = NULL;
                }
                if (_PyObject_HasAttrId(obj, &PyId_kwargs)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_kwargs);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &kwargs, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        kwargs = NULL;
                }
                *out = Call(func, args, keywords, starargs, kwargs, lineno,
                            col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Num_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                object n;

                if (_PyObject_HasAttrId(obj, &PyId_n)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_n);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_object(tmp, &n, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"n\" missing from Num");
                        return 1;
                }
                *out = Num(n, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Str_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                string s;

                if (_PyObject_HasAttrId(obj, &PyId_s)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_s);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_string(tmp, &s, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"s\" missing from Str");
                        return 1;
                }
                *out = Str(s, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Bytes_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                bytes s;

                if (_PyObject_HasAttrId(obj, &PyId_s)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_s);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_bytes(tmp, &s, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"s\" missing from Bytes");
                        return 1;
                }
                *out = Bytes(s, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)NameConstant_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                singleton value;

                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_singleton(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from NameConstant");
                        return 1;
                }
                *out = NameConstant(value, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Ellipsis_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {

                *out = Ellipsis(lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Attribute_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty value;
                identifier attr;
                expr_context_ty ctx;

                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Attribute");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_attr)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_attr);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_identifier(tmp, &attr, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"attr\" missing from Attribute");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_ctx)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_ctx);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr_context(tmp, &ctx, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Attribute");
                        return 1;
                }
                *out = Attribute(value, attr, ctx, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Subscript_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty value;
                slice_ty slice;
                expr_context_ty ctx;

                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Subscript");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_slice)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_slice);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_slice(tmp, &slice, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"slice\" missing from Subscript");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_ctx)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_ctx);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr_context(tmp, &ctx, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Subscript");
                        return 1;
                }
                *out = Subscript(value, slice, ctx, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Starred_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty value;
                expr_context_ty ctx;

                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Starred");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_ctx)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_ctx);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr_context(tmp, &ctx, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Starred");
                        return 1;
                }
                *out = Starred(value, ctx, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Name_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                identifier id;
                expr_context_ty ctx;

                if (_PyObject_HasAttrId(obj, &PyId_id)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_id);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_identifier(tmp, &id, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"id\" missing from Name");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_ctx)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_ctx);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr_context(tmp, &ctx, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Name");
                        return 1;
                }
                *out = Name(id, ctx, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)List_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* elts;
                expr_context_ty ctx;

                if (_PyObject_HasAttrId(obj, &PyId_elts)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_elts);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "List field \"elts\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        elts = asdl_seq_new(len, arena);
                        if (elts == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(elts, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"elts\" missing from List");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_ctx)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_ctx);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr_context(tmp, &ctx, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from List");
                        return 1;
                }
                *out = List(elts, ctx, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Tuple_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* elts;
                expr_context_ty ctx;

                if (_PyObject_HasAttrId(obj, &PyId_elts)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_elts);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "Tuple field \"elts\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        elts = asdl_seq_new(len, arena);
                        if (elts == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                expr_ty value;
                                res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(elts, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"elts\" missing from Tuple");
                        return 1;
                }
                if (_PyObject_HasAttrId(obj, &PyId_ctx)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_ctx);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr_context(tmp, &ctx, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"ctx\" missing from Tuple");
                        return 1;
                }
                *out = Tuple(elts, ctx, lineno, col_offset, arena);
                if (*out == NULL) goto failed;
                return 0;
        }

        PyErr_Format(PyExc_TypeError, "expected some sort of expr, but got %R", obj);
        failed:
        Py_XDECREF(tmp);
        return 1;
}

int
obj2ast_expr_context(PyObject* obj, expr_context_ty* out, PyArena* arena)
{
        int isinstance;

        isinstance = PyObject_IsInstance(obj, (PyObject *)Load_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Load;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Store_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Store;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Del_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Del;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)AugLoad_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = AugLoad;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)AugStore_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = AugStore;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Param_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Param;
                return 0;
        }

        PyErr_Format(PyExc_TypeError, "expected some sort of expr_context, but got %R", obj);
        return 1;
}

int
obj2ast_slice(PyObject* obj, slice_ty* out, PyArena* arena)
{
        int isinstance;

        PyObject *tmp = NULL;

        if (obj == Py_None) {
                *out = NULL;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Slice_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty lower;
                expr_ty upper;
                expr_ty step;

                if (_PyObject_HasAttrId(obj, &PyId_lower)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_lower);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &lower, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        lower = NULL;
                }
                if (_PyObject_HasAttrId(obj, &PyId_upper)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_upper);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &upper, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        upper = NULL;
                }
                if (_PyObject_HasAttrId(obj, &PyId_step)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_step);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &step, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        step = NULL;
                }
                *out = Slice(lower, upper, step, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)ExtSlice_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                asdl_seq* dims;

                if (_PyObject_HasAttrId(obj, &PyId_dims)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_dims);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "ExtSlice field \"dims\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        dims = asdl_seq_new(len, arena);
                        if (dims == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                slice_ty value;
                                res = obj2ast_slice(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(dims, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"dims\" missing from ExtSlice");
                        return 1;
                }
                *out = ExtSlice(dims, arena);
                if (*out == NULL) goto failed;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)Index_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty value;

                if (_PyObject_HasAttrId(obj, &PyId_value)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_value);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &value, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from Index");
                        return 1;
                }
                *out = Index(value, arena);
                if (*out == NULL) goto failed;
                return 0;
        }

        PyErr_Format(PyExc_TypeError, "expected some sort of slice, but got %R", obj);
        failed:
        Py_XDECREF(tmp);
        return 1;
}

int
obj2ast_boolop(PyObject* obj, boolop_ty* out, PyArena* arena)
{
        int isinstance;

        isinstance = PyObject_IsInstance(obj, (PyObject *)And_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = And;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Or_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Or;
                return 0;
        }

        PyErr_Format(PyExc_TypeError, "expected some sort of boolop, but got %R", obj);
        return 1;
}

int
obj2ast_operator(PyObject* obj, operator_ty* out, PyArena* arena)
{
        int isinstance;

        isinstance = PyObject_IsInstance(obj, (PyObject *)Add_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Add;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Sub_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Sub;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Mult_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Mult;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Div_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Div;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Mod_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Mod;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Pow_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Pow;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)LShift_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = LShift;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)RShift_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = RShift;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)BitOr_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = BitOr;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)BitXor_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = BitXor;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)BitAnd_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = BitAnd;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)FloorDiv_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = FloorDiv;
                return 0;
        }

        PyErr_Format(PyExc_TypeError, "expected some sort of operator, but got %R", obj);
        return 1;
}

int
obj2ast_unaryop(PyObject* obj, unaryop_ty* out, PyArena* arena)
{
        int isinstance;

        isinstance = PyObject_IsInstance(obj, (PyObject *)Invert_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Invert;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Not_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Not;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)UAdd_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = UAdd;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)USub_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = USub;
                return 0;
        }

        PyErr_Format(PyExc_TypeError, "expected some sort of unaryop, but got %R", obj);
        return 1;
}

int
obj2ast_cmpop(PyObject* obj, cmpop_ty* out, PyArena* arena)
{
        int isinstance;

        isinstance = PyObject_IsInstance(obj, (PyObject *)Eq_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Eq;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)NotEq_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = NotEq;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Lt_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Lt;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)LtE_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = LtE;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Gt_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Gt;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)GtE_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = GtE;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)Is_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = Is;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)IsNot_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = IsNot;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)In_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = In;
                return 0;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject *)NotIn_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                *out = NotIn;
                return 0;
        }

        PyErr_Format(PyExc_TypeError, "expected some sort of cmpop, but got %R", obj);
        return 1;
}

int
obj2ast_comprehension(PyObject* obj, comprehension_ty* out, PyArena* arena)
{
        PyObject* tmp = NULL;
        expr_ty target;
        expr_ty iter;
        asdl_seq* ifs;

        if (_PyObject_HasAttrId(obj, &PyId_target)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_target);
                if (tmp == NULL) goto failed;
                res = obj2ast_expr(tmp, &target, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"target\" missing from comprehension");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_iter)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_iter);
                if (tmp == NULL) goto failed;
                res = obj2ast_expr(tmp, &iter, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"iter\" missing from comprehension");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_ifs)) {
                int res;
                Py_ssize_t len;
                Py_ssize_t i;
                tmp = _PyObject_GetAttrId(obj, &PyId_ifs);
                if (tmp == NULL) goto failed;
                if (!PyList_Check(tmp)) {
                        PyErr_Format(PyExc_TypeError, "comprehension field \"ifs\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                        goto failed;
                }
                len = PyList_GET_SIZE(tmp);
                ifs = asdl_seq_new(len, arena);
                if (ifs == NULL) goto failed;
                for (i = 0; i < len; i++) {
                        expr_ty value;
                        res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                        if (res != 0) goto failed;
                        asdl_seq_SET(ifs, i, value);
                }
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"ifs\" missing from comprehension");
                return 1;
        }
        *out = comprehension(target, iter, ifs, arena);
        return 0;
failed:
        Py_XDECREF(tmp);
        return 1;
}

int
obj2ast_excepthandler(PyObject* obj, excepthandler_ty* out, PyArena* arena)
{
        int isinstance;

        PyObject *tmp = NULL;
        int lineno;
        int col_offset;

        if (obj == Py_None) {
                *out = NULL;
                return 0;
        }
        if (_PyObject_HasAttrId(obj, &PyId_lineno)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_lineno);
                if (tmp == NULL) goto failed;
                res = obj2ast_int(tmp, &lineno, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"lineno\" missing from excepthandler");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_col_offset)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_col_offset);
                if (tmp == NULL) goto failed;
                res = obj2ast_int(tmp, &col_offset, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"col_offset\" missing from excepthandler");
                return 1;
        }
        isinstance = PyObject_IsInstance(obj, (PyObject*)ExceptHandler_type);
        if (isinstance == -1) {
                return 1;
        }
        if (isinstance) {
                expr_ty type;
                identifier name;
                asdl_seq* body;

                if (_PyObject_HasAttrId(obj, &PyId_type)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_type);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_expr(tmp, &type, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        type = NULL;
                }
                if (_PyObject_HasAttrId(obj, &PyId_name)) {
                        int res;
                        tmp = _PyObject_GetAttrId(obj, &PyId_name);
                        if (tmp == NULL) goto failed;
                        res = obj2ast_identifier(tmp, &name, arena);
                        if (res != 0) goto failed;
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        name = NULL;
                }
                if (_PyObject_HasAttrId(obj, &PyId_body)) {
                        int res;
                        Py_ssize_t len;
                        Py_ssize_t i;
                        tmp = _PyObject_GetAttrId(obj, &PyId_body);
                        if (tmp == NULL) goto failed;
                        if (!PyList_Check(tmp)) {
                                PyErr_Format(PyExc_TypeError, "ExceptHandler field \"body\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                                goto failed;
                        }
                        len = PyList_GET_SIZE(tmp);
                        body = asdl_seq_new(len, arena);
                        if (body == NULL) goto failed;
                        for (i = 0; i < len; i++) {
                                stmt_ty value;
                                res = obj2ast_stmt(PyList_GET_ITEM(tmp, i), &value, arena);
                                if (res != 0) goto failed;
                                asdl_seq_SET(body, i, value);
                        }
                        Py_XDECREF(tmp);
                        tmp = NULL;
                } else {
                        PyErr_SetString(PyExc_TypeError, "required field \"body\" missing from ExceptHandler");
                        return 1;
                }
                *out = ExceptHandler(type, name, body, lineno, col_offset,
                                     arena);
                if (*out == NULL) goto failed;
                return 0;
        }

        PyErr_Format(PyExc_TypeError, "expected some sort of excepthandler, but got %R", obj);
        failed:
        Py_XDECREF(tmp);
        return 1;
}

int
obj2ast_arguments(PyObject* obj, arguments_ty* out, PyArena* arena)
{
        PyObject* tmp = NULL;
        asdl_seq* args;
        identifier vararg;
        expr_ty varargannotation;
        asdl_seq* kwonlyargs;
        identifier kwarg;
        expr_ty kwargannotation;
        asdl_seq* defaults;
        asdl_seq* kw_defaults;

        if (_PyObject_HasAttrId(obj, &PyId_args)) {
                int res;
                Py_ssize_t len;
                Py_ssize_t i;
                tmp = _PyObject_GetAttrId(obj, &PyId_args);
                if (tmp == NULL) goto failed;
                if (!PyList_Check(tmp)) {
                        PyErr_Format(PyExc_TypeError, "arguments field \"args\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                        goto failed;
                }
                len = PyList_GET_SIZE(tmp);
                args = asdl_seq_new(len, arena);
                if (args == NULL) goto failed;
                for (i = 0; i < len; i++) {
                        arg_ty value;
                        res = obj2ast_arg(PyList_GET_ITEM(tmp, i), &value, arena);
                        if (res != 0) goto failed;
                        asdl_seq_SET(args, i, value);
                }
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"args\" missing from arguments");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_vararg)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_vararg);
                if (tmp == NULL) goto failed;
                res = obj2ast_identifier(tmp, &vararg, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                vararg = NULL;
        }
        if (_PyObject_HasAttrId(obj, &PyId_varargannotation)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_varargannotation);
                if (tmp == NULL) goto failed;
                res = obj2ast_expr(tmp, &varargannotation, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                varargannotation = NULL;
        }
        if (_PyObject_HasAttrId(obj, &PyId_kwonlyargs)) {
                int res;
                Py_ssize_t len;
                Py_ssize_t i;
                tmp = _PyObject_GetAttrId(obj, &PyId_kwonlyargs);
                if (tmp == NULL) goto failed;
                if (!PyList_Check(tmp)) {
                        PyErr_Format(PyExc_TypeError, "arguments field \"kwonlyargs\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                        goto failed;
                }
                len = PyList_GET_SIZE(tmp);
                kwonlyargs = asdl_seq_new(len, arena);
                if (kwonlyargs == NULL) goto failed;
                for (i = 0; i < len; i++) {
                        arg_ty value;
                        res = obj2ast_arg(PyList_GET_ITEM(tmp, i), &value, arena);
                        if (res != 0) goto failed;
                        asdl_seq_SET(kwonlyargs, i, value);
                }
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"kwonlyargs\" missing from arguments");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_kwarg)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_kwarg);
                if (tmp == NULL) goto failed;
                res = obj2ast_identifier(tmp, &kwarg, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                kwarg = NULL;
        }
        if (_PyObject_HasAttrId(obj, &PyId_kwargannotation)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_kwargannotation);
                if (tmp == NULL) goto failed;
                res = obj2ast_expr(tmp, &kwargannotation, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                kwargannotation = NULL;
        }
        if (_PyObject_HasAttrId(obj, &PyId_defaults)) {
                int res;
                Py_ssize_t len;
                Py_ssize_t i;
                tmp = _PyObject_GetAttrId(obj, &PyId_defaults);
                if (tmp == NULL) goto failed;
                if (!PyList_Check(tmp)) {
                        PyErr_Format(PyExc_TypeError, "arguments field \"defaults\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                        goto failed;
                }
                len = PyList_GET_SIZE(tmp);
                defaults = asdl_seq_new(len, arena);
                if (defaults == NULL) goto failed;
                for (i = 0; i < len; i++) {
                        expr_ty value;
                        res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                        if (res != 0) goto failed;
                        asdl_seq_SET(defaults, i, value);
                }
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"defaults\" missing from arguments");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_kw_defaults)) {
                int res;
                Py_ssize_t len;
                Py_ssize_t i;
                tmp = _PyObject_GetAttrId(obj, &PyId_kw_defaults);
                if (tmp == NULL) goto failed;
                if (!PyList_Check(tmp)) {
                        PyErr_Format(PyExc_TypeError, "arguments field \"kw_defaults\" must be a list, not a %.200s", tmp->ob_type->tp_name);
                        goto failed;
                }
                len = PyList_GET_SIZE(tmp);
                kw_defaults = asdl_seq_new(len, arena);
                if (kw_defaults == NULL) goto failed;
                for (i = 0; i < len; i++) {
                        expr_ty value;
                        res = obj2ast_expr(PyList_GET_ITEM(tmp, i), &value, arena);
                        if (res != 0) goto failed;
                        asdl_seq_SET(kw_defaults, i, value);
                }
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"kw_defaults\" missing from arguments");
                return 1;
        }
        *out = arguments(args, vararg, varargannotation, kwonlyargs, kwarg,
                         kwargannotation, defaults, kw_defaults, arena);
        return 0;
failed:
        Py_XDECREF(tmp);
        return 1;
}

int
obj2ast_arg(PyObject* obj, arg_ty* out, PyArena* arena)
{
        PyObject* tmp = NULL;
        identifier arg;
        expr_ty annotation;

        if (_PyObject_HasAttrId(obj, &PyId_arg)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_arg);
                if (tmp == NULL) goto failed;
                res = obj2ast_identifier(tmp, &arg, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"arg\" missing from arg");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_annotation)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_annotation);
                if (tmp == NULL) goto failed;
                res = obj2ast_expr(tmp, &annotation, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                annotation = NULL;
        }
        *out = arg(arg, annotation, arena);
        return 0;
failed:
        Py_XDECREF(tmp);
        return 1;
}

int
obj2ast_keyword(PyObject* obj, keyword_ty* out, PyArena* arena)
{
        PyObject* tmp = NULL;
        identifier arg;
        expr_ty value;

        if (_PyObject_HasAttrId(obj, &PyId_arg)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_arg);
                if (tmp == NULL) goto failed;
                res = obj2ast_identifier(tmp, &arg, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"arg\" missing from keyword");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_value)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_value);
                if (tmp == NULL) goto failed;
                res = obj2ast_expr(tmp, &value, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from keyword");
                return 1;
        }
        *out = keyword(arg, value, arena);
        return 0;
failed:
        Py_XDECREF(tmp);
        return 1;
}

int
obj2ast_alias(PyObject* obj, alias_ty* out, PyArena* arena)
{
        PyObject* tmp = NULL;
        identifier name;
        identifier asname;

        if (_PyObject_HasAttrId(obj, &PyId_name)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_name);
                if (tmp == NULL) goto failed;
                res = obj2ast_identifier(tmp, &name, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"name\" missing from alias");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_asname)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_asname);
                if (tmp == NULL) goto failed;
                res = obj2ast_identifier(tmp, &asname, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                asname = NULL;
        }
        *out = alias(name, asname, arena);
        return 0;
failed:
        Py_XDECREF(tmp);
        return 1;
}

int
obj2ast_withitem(PyObject* obj, withitem_ty* out, PyArena* arena)
{
        PyObject* tmp = NULL;
        expr_ty context_expr;
        expr_ty optional_vars;

        if (_PyObject_HasAttrId(obj, &PyId_context_expr)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_context_expr);
                if (tmp == NULL) goto failed;
                res = obj2ast_expr(tmp, &context_expr, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                PyErr_SetString(PyExc_TypeError, "required field \"context_expr\" missing from withitem");
                return 1;
        }
        if (_PyObject_HasAttrId(obj, &PyId_optional_vars)) {
                int res;
                tmp = _PyObject_GetAttrId(obj, &PyId_optional_vars);
                if (tmp == NULL) goto failed;
                res = obj2ast_expr(tmp, &optional_vars, arena);
                if (res != 0) goto failed;
                Py_XDECREF(tmp);
                tmp = NULL;
        } else {
                optional_vars = NULL;
        }
        *out = withitem(context_expr, optional_vars, arena);
        return 0;
failed:
        Py_XDECREF(tmp);
        return 1;
}


static struct PyModuleDef _astmodule = {
  PyModuleDef_HEAD_INIT, "_ast"
};
PyMODINIT_FUNC
PyInit__ast(void)
{
        PyObject *m, *d;
        if (!init_types()) return NULL;
        m = PyModule_Create(&_astmodule);
        if (!m) return NULL;
        d = PyModule_GetDict(m);
        if (PyDict_SetItemString(d, "AST", (PyObject*)&AST_type) < 0) return
            NULL;
        if (PyModule_AddIntConstant(m, "PyCF_ONLY_AST", PyCF_ONLY_AST) < 0)
                return NULL;
        if (PyDict_SetItemString(d, "mod", (PyObject*)mod_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Module", (PyObject*)Module_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Interactive", (PyObject*)Interactive_type)
            < 0) return NULL;
        if (PyDict_SetItemString(d, "Expression", (PyObject*)Expression_type) <
            0) return NULL;
        if (PyDict_SetItemString(d, "Suite", (PyObject*)Suite_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "stmt", (PyObject*)stmt_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "FunctionDef", (PyObject*)FunctionDef_type)
            < 0) return NULL;
        if (PyDict_SetItemString(d, "ClassDef", (PyObject*)ClassDef_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Return", (PyObject*)Return_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Delete", (PyObject*)Delete_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Assign", (PyObject*)Assign_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "AugAssign", (PyObject*)AugAssign_type) <
            0) return NULL;
        if (PyDict_SetItemString(d, "For", (PyObject*)For_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "While", (PyObject*)While_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "If", (PyObject*)If_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "With", (PyObject*)With_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Raise", (PyObject*)Raise_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Try", (PyObject*)Try_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Assert", (PyObject*)Assert_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Import", (PyObject*)Import_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "ImportFrom", (PyObject*)ImportFrom_type) <
            0) return NULL;
        if (PyDict_SetItemString(d, "Global", (PyObject*)Global_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Nonlocal", (PyObject*)Nonlocal_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Expr", (PyObject*)Expr_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Pass", (PyObject*)Pass_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Break", (PyObject*)Break_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Continue", (PyObject*)Continue_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "expr", (PyObject*)expr_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "BoolOp", (PyObject*)BoolOp_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "BinOp", (PyObject*)BinOp_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "UnaryOp", (PyObject*)UnaryOp_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Lambda", (PyObject*)Lambda_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "IfExp", (PyObject*)IfExp_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Dict", (PyObject*)Dict_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Set", (PyObject*)Set_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "ListComp", (PyObject*)ListComp_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "SetComp", (PyObject*)SetComp_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "DictComp", (PyObject*)DictComp_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "GeneratorExp",
            (PyObject*)GeneratorExp_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "Yield", (PyObject*)Yield_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "YieldFrom", (PyObject*)YieldFrom_type) <
            0) return NULL;
        if (PyDict_SetItemString(d, "Compare", (PyObject*)Compare_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Call", (PyObject*)Call_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Num", (PyObject*)Num_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Str", (PyObject*)Str_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Bytes", (PyObject*)Bytes_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "NameConstant",
            (PyObject*)NameConstant_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "Ellipsis", (PyObject*)Ellipsis_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Attribute", (PyObject*)Attribute_type) <
            0) return NULL;
        if (PyDict_SetItemString(d, "Subscript", (PyObject*)Subscript_type) <
            0) return NULL;
        if (PyDict_SetItemString(d, "Starred", (PyObject*)Starred_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Name", (PyObject*)Name_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "List", (PyObject*)List_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Tuple", (PyObject*)Tuple_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "expr_context",
            (PyObject*)expr_context_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "Load", (PyObject*)Load_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Store", (PyObject*)Store_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Del", (PyObject*)Del_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "AugLoad", (PyObject*)AugLoad_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "AugStore", (PyObject*)AugStore_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Param", (PyObject*)Param_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "slice", (PyObject*)slice_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Slice", (PyObject*)Slice_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "ExtSlice", (PyObject*)ExtSlice_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Index", (PyObject*)Index_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "boolop", (PyObject*)boolop_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "And", (PyObject*)And_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Or", (PyObject*)Or_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "operator", (PyObject*)operator_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Add", (PyObject*)Add_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Sub", (PyObject*)Sub_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Mult", (PyObject*)Mult_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Div", (PyObject*)Div_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Mod", (PyObject*)Mod_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Pow", (PyObject*)Pow_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "LShift", (PyObject*)LShift_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "RShift", (PyObject*)RShift_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "BitOr", (PyObject*)BitOr_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "BitXor", (PyObject*)BitXor_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "BitAnd", (PyObject*)BitAnd_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "FloorDiv", (PyObject*)FloorDiv_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "unaryop", (PyObject*)unaryop_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Invert", (PyObject*)Invert_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "Not", (PyObject*)Not_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "UAdd", (PyObject*)UAdd_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "USub", (PyObject*)USub_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "cmpop", (PyObject*)cmpop_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Eq", (PyObject*)Eq_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "NotEq", (PyObject*)NotEq_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Lt", (PyObject*)Lt_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "LtE", (PyObject*)LtE_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Gt", (PyObject*)Gt_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "GtE", (PyObject*)GtE_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "Is", (PyObject*)Is_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "IsNot", (PyObject*)IsNot_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "In", (PyObject*)In_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "NotIn", (PyObject*)NotIn_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "comprehension",
            (PyObject*)comprehension_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "excepthandler",
            (PyObject*)excepthandler_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "ExceptHandler",
            (PyObject*)ExceptHandler_type) < 0) return NULL;
        if (PyDict_SetItemString(d, "arguments", (PyObject*)arguments_type) <
            0) return NULL;
        if (PyDict_SetItemString(d, "arg", (PyObject*)arg_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "keyword", (PyObject*)keyword_type) < 0)
            return NULL;
        if (PyDict_SetItemString(d, "alias", (PyObject*)alias_type) < 0) return
            NULL;
        if (PyDict_SetItemString(d, "withitem", (PyObject*)withitem_type) < 0)
            return NULL;
        return m;
}


PyObject* PyAST_mod2obj(mod_ty t)
{
    init_types();
    return ast2obj_mod(t);
}

/* mode is 0 for "exec", 1 for "eval" and 2 for "single" input */
mod_ty PyAST_obj2mod(PyObject* ast, PyArena* arena, int mode)
{
    mod_ty res;
    PyObject *req_type[] = {(PyObject*)Module_type, (PyObject*)Expression_type,
                            (PyObject*)Interactive_type};
    char *req_name[] = {"Module", "Expression", "Interactive"};
    int isinstance;
    assert(0 <= mode && mode <= 2);

    init_types();

    isinstance = PyObject_IsInstance(ast, req_type[mode]);
    if (isinstance == -1)
        return NULL;
    if (!isinstance) {
        PyErr_Format(PyExc_TypeError, "expected %s node, got %.400s",
                     req_name[mode], Py_TYPE(ast)->tp_name);
        return NULL;
    }
    if (obj2ast_mod(ast, &res, arena) != 0)
        return NULL;
    else
        return res;
}

int PyAST_Check(PyObject* obj)
{
    init_types();
    return PyObject_IsInstance(obj, (PyObject*)&AST_type);
}
generated by cgit v0.12 at 2025-10-06 01:21:20 (GMT)