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/**
* @file
* @author 2012-2013 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#include "uscxml/Common.h"
#include "uscxml/config.h"
#include "V8DataModel.h"
#include "V8DOM.h"
#include "dom/V8Document.h"
#include "dom/V8Node.h"
#include "dom/V8Element.h"
#include "dom/V8Text.h"
#include "dom/V8CDATASection.h"
#include "dom/V8SCXMLEvent.h"
#include "dom/V8ArrayBuffer.h"
#include "dom/V8Int8Array.h"
#include "dom/V8Uint8Array.h"
#include "dom/V8Uint8ClampedArray.h"
#include "dom/V8Int16Array.h"
#include "dom/V8Uint16Array.h"
#include "dom/V8Int32Array.h"
#include "dom/V8Uint32Array.h"
#include "dom/V8Float32Array.h"
#include "dom/V8Float64Array.h"
#include "dom/V8DataView.h"
#include "uscxml/Message.h"
#include "uscxml/DOMUtils.h"
#include <glog/logging.h>
#ifdef BUILD_AS_PLUGINS
#include <Pluma/Connector.hpp>
#endif
#define TO_V8_DOMVALUE(type) \
v8::Handle<v8::Function> retCtor = V8##type::getTmpl()->GetFunction();\
v8::Persistent<v8::Object> retObj = v8::Persistent<v8::Object>::New(retCtor->NewInstance());\
struct V8##type::V8##type##Private* retPrivData = new V8##type::V8##type##Private();\
retPrivData->dom = _dom;\
retPrivData->nativeObj = new type<std::string>(node);\
retObj->SetInternalField(0, V8DOM::toExternal(retPrivData));\
retObj.MakeWeak(0, V8##type::jsDestructor);\
return retObj;
namespace uscxml {
using namespace Arabica::XPath;
using namespace Arabica::DOM;
#ifdef BUILD_AS_PLUGINS
PLUMA_CONNECTOR
bool pluginConnect(pluma::Host& host) {
host.add( new V8DataModelProvider() );
return true;
}
#endif
V8DataModel::V8DataModel() {
// _contexts.push_back(v8::Context::New());
}
V8DataModel::~V8DataModel() {
while(_contexts.size() > 0) {
_contexts.back().Dispose();
_contexts.pop_back();
}
if (_dom)
delete _dom;
}
boost::shared_ptr<DataModelImpl> V8DataModel::create(InterpreterImpl* interpreter) {
boost::shared_ptr<V8DataModel> dm = boost::shared_ptr<V8DataModel>(new V8DataModel());
dm->_interpreter = interpreter;
v8::Locker locker;
v8::HandleScope scope;
dm->_dom = new V8DOM();
// dom->interpreter = interpreter;
dm->_dom->xpath = new XPath<std::string>();
dm->_dom->xpath->setNamespaceContext(*interpreter->getNameSpaceInfo().getNSContext());
dm->_dom->storage = new Storage(URL::getResourceDir() + PATH_SEPERATOR + interpreter->getName() + ".storage");
dm->_dom->nsInfo = new NameSpaceInfo(interpreter->getNameSpaceInfo());
// see http://stackoverflow.com/questions/3171418/v8-functiontemplate-class-instance
// some free functions
v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
global->Set(v8::String::New("In"), v8::FunctionTemplate::New(jsIn, v8::External::New(reinterpret_cast<void*>(dm.get()))), v8::ReadOnly);
global->Set(v8::String::New("print"), v8::FunctionTemplate::New(jsPrint, v8::External::New(reinterpret_cast<void*>(dm.get()))), v8::ReadOnly);
v8::Persistent<v8::Context> context = v8::Context::New(0, global);
v8::Context::Scope contextScope(context);
// instantiate the document function
v8::Handle<v8::Function> docCtor = V8Document::getTmpl()->GetFunction();
v8::Handle<v8::Object> docObj = docCtor->NewInstance();
V8Document::V8DocumentPrivate* privData = new V8Document::V8DocumentPrivate();
privData->nativeObj = new Document<std::string>(interpreter->getDocument());
privData->dom = dm->_dom;
docObj->SetInternalField(0, V8DOM::toExternal(privData));
context->Global()->Set(v8::String::New("document"), docObj);
// setup constructors
context->Global()->Set(v8::String::New("ArrayBuffer"), V8ArrayBuffer::getConstructor()->GetFunction());
context->Global()->Set(v8::String::New("Int8Array"), V8Int8Array::getConstructor()->GetFunction());
context->Global()->Set(v8::String::New("Uint8Array"), V8Uint8Array::getConstructor()->GetFunction());
context->Global()->Set(v8::String::New("Uint8ClampedArray"), V8Uint8ClampedArray::getConstructor()->GetFunction());
context->Global()->Set(v8::String::New("Int16Array"), V8Int16Array::getConstructor()->GetFunction());
context->Global()->Set(v8::String::New("Uint16Array"), V8Uint16Array::getConstructor()->GetFunction());
context->Global()->Set(v8::String::New("Int32Array"), V8Int32Array::getConstructor()->GetFunction());
context->Global()->Set(v8::String::New("Uint32Array"), V8Uint32Array::getConstructor()->GetFunction());
context->Global()->Set(v8::String::New("Float32Array"), V8Float32Array::getConstructor()->GetFunction());
context->Global()->Set(v8::String::New("Float64Array"), V8Float64Array::getConstructor()->GetFunction());
context->Global()->Set(v8::String::New("DataView"), V8DataView::getConstructor()->GetFunction());
context->Global()->SetAccessor(v8::String::New("_sessionid"),
V8DataModel::getAttribute,
V8DataModel::setWithException,
v8::String::New(interpreter->getSessionId().c_str()));
context->Global()->SetAccessor(v8::String::New("_name"),
V8DataModel::getAttribute,
V8DataModel::setWithException,
v8::String::New(interpreter->getName().c_str()));
context->Global()->SetAccessor(v8::String::New("_ioprocessors"),
V8DataModel::getIOProcessors,
V8DataModel::setWithException,
v8::External::New(reinterpret_cast<void*>(dm.get())));
context->Global()->SetAccessor(v8::String::New("_invokers"),
V8DataModel::getInvokers,
V8DataModel::setWithException,
v8::External::New(reinterpret_cast<void*>(dm.get())));
dm->_contexts.push_back(context);
// instantiate objects - we have to have a context for that!
dm->eval(Element<std::string>(), "_x = {};");
return dm;
}
v8::Handle<v8::Value> V8DataModel::getAttribute(v8::Local<v8::String> property, const v8::AccessorInfo& info) {
return info.Data();
}
void V8DataModel::setWithException(v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::AccessorInfo& info) {
v8::String::AsciiValue data(property);
std::string msg = "Cannot set " + std::string(*data);
v8::ThrowException(v8::Exception::ReferenceError(v8::String::New(msg.c_str())));
}
v8::Handle<v8::Value> V8DataModel::getIOProcessors(v8::Local<v8::String> property, const v8::AccessorInfo& info) {
V8DataModel* dataModel = V8DOM::toClassPtr<V8DataModel>(info.Data());
dataModel->_ioProcessors = v8::Persistent<v8::Object>::New(v8::Object::New());
//v8::Handle<v8::Object> ioProcessorObj = v8::Object::New();
std::map<std::string, IOProcessor> ioProcessors = dataModel->_interpreter->getIOProcessors();
std::map<std::string, IOProcessor>::const_iterator ioProcIter = ioProcessors.begin();
while(ioProcIter != ioProcessors.end()) {
// std::cout << ioProcIter->first << std::endl;
dataModel->_ioProcessors->Set(v8::String::New(ioProcIter->first.c_str()),
dataModel->getDataAsValue(ioProcIter->second.getDataModelVariables()));
ioProcIter++;
}
return dataModel->_ioProcessors;
}
v8::Handle<v8::Value> V8DataModel::getInvokers(v8::Local<v8::String> property, const v8::AccessorInfo& info) {
V8DataModel* dataModel = V8DOM::toClassPtr<V8DataModel>(info.Data());
dataModel->_invokers = v8::Persistent<v8::Object>::New(v8::Object::New());
//v8::Handle<v8::Object> ioProcessorObj = v8::Object::New();
std::map<std::string, Invoker> invokers = dataModel->_interpreter->getInvokers();
std::map<std::string, Invoker>::const_iterator invokerIter = invokers.begin();
while(invokerIter != invokers.end()) {
// std::cout << ioProcIter->first << std::endl;
dataModel->_invokers->Set(v8::String::New(invokerIter->first.c_str()),
dataModel->getDataAsValue(invokerIter->second.getDataModelVariables()));
invokerIter++;
}
return dataModel->_invokers;
}
void V8DataModel::pushContext() {
_contexts.push_back(_contexts.back().New(_contexts.back()));
}
void V8DataModel::popContext() {
if (_contexts.size() > 1) {
_contexts.back().Dispose();
_contexts.pop_back();
}
}
void V8DataModel::initialize() {
}
void V8DataModel::setEvent(const Event& event) {
v8::Locker locker;
v8::HandleScope handleScope;
v8::Context::Scope contextScope(_contexts.front());
v8::Handle<v8::Object> global = _contexts.front()->Global();
v8::Handle<v8::Function> eventCtor = V8SCXMLEvent::getTmpl()->GetFunction();
v8::Persistent<v8::Object> eventObj = v8::Persistent<v8::Object>::New(eventCtor->NewInstance());
V8SCXMLEvent::V8SCXMLEventPrivate* privData = new V8SCXMLEvent::V8SCXMLEventPrivate();
privData->nativeObj = new Event(event);
privData->dom = _dom;
eventObj->SetInternalField(0, V8DOM::toExternal(privData));
eventObj.MakeWeak(0, V8SCXMLEvent::jsDestructor);
if (event.dom) {
eventObj->Set(v8::String::New("data"), getNodeAsValue(event.dom));
} else if (event.content.length() > 0) {
// _event.data is a string or JSON
Data json = Data::fromJSON(event.content);
if (json) {
eventObj->Set(v8::String::New("data"), getDataAsValue(json));
} else {
eventObj->Set(v8::String::New("data"), v8::String::New(InterpreterImpl::spaceNormalize(event.content).c_str()));
}
} else {
// _event.data is KVP
Event eventCopy(event);
if (!eventCopy.params.empty()) {
Event::params_t::iterator paramIter = eventCopy.params.begin();
while(paramIter != eventCopy.params.end()) {
eventCopy.data.compound[paramIter->first] = paramIter->second;
paramIter++;
}
}
if (!eventCopy.namelist.empty()) {
Event::namelist_t::iterator nameListIter = eventCopy.namelist.begin();
while(nameListIter != eventCopy.namelist.end()) {
eventCopy.data.compound[nameListIter->first] = nameListIter->second;
nameListIter++;
}
}
if (eventCopy.data) {
// std::cout << Data::toJSON(eventCopy.data);
eventObj->Set(v8::String::New("data"), getDataAsValue(eventCopy.data)); // set data part of _event
} else {
// test 343 / test 488
eventObj->Set(v8::String::New("data"), v8::Undefined()); // set data part of _event
}
}
// we cannot make _event v8::ReadOnly as it will ignore subsequent setEvents
global->Set(v8::String::New("_event"), eventObj);
}
Data V8DataModel::getStringAsData(const std::string& content) {
v8::Locker locker;
v8::HandleScope handleScope;
v8::Context::Scope contextScope(_contexts.front());
v8::Handle<v8::Value> result = evalAsValue(content);
Data data = getValueAsData(result);
return data;
}
Data V8DataModel::getValueAsData(const v8::Handle<v8::Value>& value) {
std::set<v8::Value*> foo = std::set<v8::Value*>();
return getValueAsData(value, foo);
}
Data V8DataModel::getValueAsData(const v8::Handle<v8::Value>& value, std::set<v8::Value*>& alreadySeen) {
Data data;
/// TODO: Breaking cycles does not work yet
if (alreadySeen.find(*value) != alreadySeen.end())
return data;
alreadySeen.insert(*value);
if (false) {
} else if (value->IsArray()) {
v8::Handle<v8::Array> array = v8::Handle<v8::Array>::Cast(value);
for (int i = 0; i < array->Length(); i++) {
data.array.push_back(getValueAsData(array->Get(i), alreadySeen));
}
} else if (value->IsBoolean()) {
data.atom = (value->ToBoolean()->Value() ? "true" : "false");
} else if (value->IsBooleanObject()) {
LOG(ERROR) << "IsBooleanObject is unimplemented" << std::endl;
} else if (value->IsDate()) {
LOG(ERROR) << "IsDate is unimplemented" << std::endl;
} else if (value->IsExternal()) {
LOG(ERROR) << "IsExternal is unimplemented" << std::endl;
} else if (value->IsFalse()) {
LOG(ERROR) << "IsFalse is unimplemented" << std::endl;
} else if (value->IsFunction()) {
LOG(ERROR) << "IsFunction is unimplemented" << std::endl;
} else if (value->IsInt32()) {
int32_t prop = value->Int32Value();
data.atom = toStr(prop);
} else if (value->IsNativeError()) {
LOG(ERROR) << "IsNativeError is unimplemented" << std::endl;
} else if (value->IsNull()) {
LOG(ERROR) << "IsNull is unimplemented" << std::endl;
} else if (value->IsNumber()) {
v8::String::AsciiValue prop(v8::Handle<v8::String>::Cast(v8::Handle<v8::Number>::Cast(value)));
data.atom = *prop;
} else if (value->IsNumberObject()) {
LOG(ERROR) << "IsNumberObject is unimplemented" << std::endl;
} else if (value->IsObject()) {
if (V8ArrayBuffer::hasInstance(value)) {
uscxml::V8ArrayBuffer::V8ArrayBufferPrivate* privObj = V8DOM::toClassPtr<V8ArrayBuffer::V8ArrayBufferPrivate >(value->ToObject()->GetInternalField(0));
data.binary = privObj->nativeObj->_buffer;
return data;
}
if (V8Node::hasInstance(value)) {
uscxml::V8Node::V8NodePrivate* privObj = V8DOM::toClassPtr<V8Node::V8NodePrivate >(value->ToObject()->GetInternalField(0));
data.node = *privObj->nativeObj;
return data;
}
v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(value);
v8::Local<v8::Array> properties = object->GetPropertyNames();
for (int i = 0; i < properties->Length(); i++) {
assert(properties->Get(i)->IsString());
v8::String::AsciiValue key(v8::Handle<v8::String>::Cast(properties->Get(i)));
v8::Local<v8::Value> property = object->Get(properties->Get(i));
data.compound[*key] = getValueAsData(property, alreadySeen);
}
} else if (value->IsRegExp()) {
LOG(ERROR) << "IsRegExp is unimplemented" << std::endl;
} else if(value->IsString()) {
v8::String::AsciiValue property(v8::Handle<v8::String>::Cast(value));
data.atom = *property;
data.type = Data::VERBATIM;
} else if(value->IsStringObject()) {
LOG(ERROR) << "IsStringObject is unimplemented" << std::endl;
} else if(value->IsTrue()) {
LOG(ERROR) << "IsTrue is unimplemented" << std::endl;
} else if(value->IsUint32()) {
LOG(ERROR) << "IsUint32 is unimplemented" << std::endl;
} else if(value->IsUndefined()) {
data.atom = "undefined";
}
return data;
}
v8::Handle<v8::Value> V8DataModel::getNodeAsValue(const Node<std::string>& node) {
switch (node.getNodeType()) {
case Node_base::ELEMENT_NODE: {
TO_V8_DOMVALUE(Element);
}
case Node_base::TEXT_NODE: {
TO_V8_DOMVALUE(Text);
}
case Node_base::CDATA_SECTION_NODE: {
TO_V8_DOMVALUE(CDATASection);
}
case Node_base::DOCUMENT_NODE: {
TO_V8_DOMVALUE(Document);
}
default: {
TO_V8_DOMVALUE(Node);
}
}
}
v8::Handle<v8::Value> V8DataModel::getDataAsValue(const Data& data) {
if (data.compound.size() > 0) {
v8::Handle<v8::Object> value = v8::Object::New();
std::map<std::string, Data>::const_iterator compoundIter = data.compound.begin();
while(compoundIter != data.compound.end()) {
// std::cout << compoundIter->first.c_str() << std::endl;
value->Set(v8::String::New(compoundIter->first.c_str()), getDataAsValue(compoundIter->second));
compoundIter++;
}
return value;
}
if (data.array.size() > 0) {
v8::Handle<v8::Object> value = v8::Array::New();
std::list<Data>::const_iterator arrayIter = data.array.begin();
uint32_t index = 0;
while(arrayIter != data.array.end()) {
value->Set(index++, getDataAsValue(*arrayIter));
arrayIter++;
}
return value;
}
if (data.atom.length() > 0) {
switch (data.type) {
case Data::VERBATIM:
return v8::String::New(data.atom.c_str());
break;
case Data::INTERPRETED:
return evalAsValue(data.atom);
break;
}
}
if (data.binary) {
uscxml::ArrayBuffer* arrBuffer = new uscxml::ArrayBuffer(data.binary);
v8::Handle<v8::Function> retCtor = V8ArrayBuffer::getTmpl()->GetFunction();
v8::Persistent<v8::Object> retObj = v8::Persistent<v8::Object>::New(retCtor->NewInstance());
struct V8ArrayBuffer::V8ArrayBufferPrivate* retPrivData = new V8ArrayBuffer::V8ArrayBufferPrivate();
retPrivData->nativeObj = arrBuffer;
retObj->SetInternalField(0, V8DOM::toExternal(retPrivData));
retObj.MakeWeak(0, V8ArrayBuffer::jsDestructor);
return retObj;
}
// this will never be reached
return v8::Undefined();
}
v8::Handle<v8::Value> V8DataModel::jsPrint(const v8::Arguments& args) {
if (args.Length() > 0) {
v8::String::AsciiValue printMsg(args[0]->ToString());
std::cout << *printMsg;
}
return v8::Undefined();
}
v8::Handle<v8::Value> V8DataModel::jsIn(const v8::Arguments& args) {
V8DataModel* INSTANCE = static_cast<V8DataModel*>(v8::External::Unwrap(args.Data()));
for (unsigned int i = 0; i < args.Length(); i++) {
if (args[i]->IsString()) {
std::string stateName(*v8::String::AsciiValue(args[i]->ToString()));
if (INSTANCE->_interpreter->isInState(stateName)) {
continue;
}
}
return v8::Boolean::New(false);
}
return v8::Boolean::New(true);
}
bool V8DataModel::validate(const std::string& location, const std::string& schema) {
return true;
}
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<v8::Value> result = evalAsValue(expr);
if (!result.IsEmpty() && result->IsArray())
return result.As<v8::Array>()->Length();
Event exceptionEvent;
exceptionEvent.name = "error.execution";
exceptionEvent.data.compound["exception"] = Data("'" + expr + "' does not evaluate to an array.", Data::VERBATIM);
throw(exceptionEvent);
}
void V8DataModel::setForeach(const std::string& item,
const std::string& array,
const std::string& index,
uint32_t iteration) {
if (!isDeclared(item)) {
assign(item, Data());
}
// assign array element to item
std::stringstream ss;
ss << array << "[" << iteration << "]";
assign(item, ss.str());
if (index.length() > 0) {
// assign iteration element to index
std::stringstream ss;
ss << iteration;
assign(index, ss.str());
}
}
void V8DataModel::eval(const Element<std::string>& scriptElem,
const std::string& expr) {
v8::Locker locker;
v8::HandleScope handleScope;
v8::Context::Scope contextScope(_contexts.back());
evalAsValue(expr);
}
bool V8DataModel::isDeclared(const std::string& expr) {
/**
* Undeclared variables can be checked by trying to access them and catching
* a reference error.
*/
v8::Locker locker;
v8::HandleScope handleScope;
v8::Context::Scope contextScope(_contexts.back());
v8::TryCatch tryCatch;
v8::Handle<v8::String> source = v8::String::New(expr.c_str());
v8::Handle<v8::Script> script = v8::Script::Compile(source);
v8::Handle<v8::Value> result;
if (!script.IsEmpty())
result = script->Run();
if (result.IsEmpty())
return false;
return true;
}
bool V8DataModel::evalAsBool(const std::string& expr) {
return evalAsBool(Arabica::DOM::Node<std::string>(), expr);
}
bool V8DataModel::evalAsBool(const Arabica::DOM::Node<std::string>& node, const std::string& expr) {
v8::Locker locker;
v8::HandleScope handleScope;
v8::Context::Scope contextScope(_contexts.back());
v8::Handle<v8::Value> result = evalAsValue(expr);
return(result->ToBoolean()->BooleanValue());
}
std::string V8DataModel::evalAsString(const std::string& expr) {
v8::Locker locker;
v8::HandleScope handleScope;
v8::Context::Scope contextScope(_contexts.back());
v8::Handle<v8::Value> result = evalAsValue(expr);
if (result->IsObject()) {
v8::Local<v8::Object> obj = result->ToObject();
v8::Local<v8::Object> proto;
proto = obj->FindInstanceInPrototypeChain(V8Document::getTmpl());
if (!proto.IsEmpty()) {
struct V8Document::V8DocumentPrivate* privData =
V8DOM::toClassPtr<V8Document::V8DocumentPrivate >(obj->GetInternalField(0));
std::stringstream ss;
ss << privData->nativeObj->getDocumentElement();
return ss.str();
}
proto = obj->FindInstanceInPrototypeChain(V8Node::getTmpl());
if (!proto.IsEmpty()) {
struct V8Node::V8NodePrivate* privData =
V8DOM::toClassPtr<V8Node::V8NodePrivate >(obj->GetInternalField(0));
std::stringstream ss;
ss << privData->nativeObj;
return ss.str();
}
Data data = getValueAsData(result);
return toStr(data);
}
if (result->IsNumber()) {
return toStr(result->ToNumber()->NumberValue());
}
v8::String::AsciiValue data(result->ToString());
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<v8::Value> result = evalAsValue(expr);
if (result->IsNumber()) {
return result->ToNumber()->NumberValue();
}
return 0;
}
void V8DataModel::assign(const Element<std::string>& assignElem,
const Node<std::string>& node,
const std::string& content) {
v8::Locker locker;
v8::HandleScope handleScope;
v8::Context::Scope contextScope(_contexts.front());
v8::Handle<v8::Object> global = _contexts.front()->Global();
std::string key;
if (HAS_ATTR(assignElem, "id")) {
key = ATTR(assignElem, "id");
} else if (HAS_ATTR(assignElem, "location")) {
key = ATTR(assignElem, "location");
}
if (key.length() == 0)
throw Event("error.execution", Event::PLATFORM);
if (HAS_ATTR(assignElem, "expr")) {
evalAsValue(key + " = " + ATTR(assignElem, "expr"));
} else if (node) {
global->Set(v8::String::New(key.c_str()), getNodeAsValue(node));
} else if (content.size() > 0) {
try {
evalAsValue(key + " = " + content);
} catch (...) {
evalAsValue(key + " = " + "\"" + InterpreterImpl::spaceNormalize(content) + "\"");
}
} else {
global->Set(v8::String::New(key.c_str()), v8::Undefined());
}
}
void V8DataModel::assign(const std::string& location,
const Data& data) {
v8::Locker locker;
v8::HandleScope handleScope;
v8::Context::Scope contextScope(_contexts.front());
std::stringstream ssJSON;
ssJSON << data;
evalAsValue(location + " = " + ssJSON.str());
}
void V8DataModel::init(const Element<std::string>& dataElem,
const Node<std::string>& doc,
const std::string& content) {
try {
assign(dataElem, doc, content);
} catch (Event e) {
// test 277
std::string key;
if (HAS_ATTR(dataElem, "id")) {
key = ATTR(dataElem, "id");
} else if (HAS_ATTR(dataElem, "location")) {
key = ATTR(dataElem, "location");
}
v8::Locker locker;
v8::HandleScope handleScope;
v8::Context::Scope contextScope(_contexts.front());
evalAsValue(key + " = undefined", true);
throw e;
}
};
void V8DataModel::init(const std::string& location,
const Data& data) {
try {
assign(location, data);
} catch (Event e) {
// test 277
v8::Locker locker;
v8::HandleScope handleScope;
v8::Context::Scope contextScope(_contexts.front());
evalAsValue(location + " = undefined", true);
throw e;
}
}
std::string V8DataModel::andExpressions(std::list<std::string> expressions) {
if (expressions.size() == 0)
return "";
if (expressions.size() == 1)
return *(expressions.begin());
std::ostringstream exprSS;
exprSS << "(";
std::string conjunction = "";
for (std::list<std::string>::const_iterator exprIter = expressions.begin();
exprIter != expressions.end();
exprIter++) {
exprSS << conjunction << "(" << *exprIter << ")";
conjunction = " && ";
}
exprSS << ")";
return exprSS.str();
}
v8::Handle<v8::Value> V8DataModel::evalAsValue(const std::string& expr, bool dontThrow) {
v8::TryCatch tryCatch;
v8::Handle<v8::String> source = v8::String::New(expr.c_str());
v8::Handle<v8::Script> script = v8::Script::Compile(source);
v8::Handle<v8::Value> result;
if (!script.IsEmpty())
result = script->Run();
if (script.IsEmpty() || result.IsEmpty()) {
// throw an exception
if (tryCatch.HasCaught() && !dontThrow)
throwExceptionEvent(tryCatch);
}
return result;
}
void V8DataModel::throwExceptionEvent(const v8::TryCatch& tryCatch) {
assert(tryCatch.HasCaught());
Event exceptionEvent;
exceptionEvent.name = "error.execution";
exceptionEvent.eventType = Event::PLATFORM;
std::string exceptionString(*v8::String::AsciiValue(tryCatch.Exception()));
exceptionEvent.data.compound["exception"] = Data(exceptionString, Data::VERBATIM);;
v8::Handle<v8::Message> 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) // remove 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);
}
}
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