diff options
Diffstat (limited to 'src/uscxml/plugins/datamodel/ecmascript/v8/032317/V8DataModel.h')
| -rw-r--r-- | src/uscxml/plugins/datamodel/ecmascript/v8/032317/V8DataModel.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/uscxml/plugins/datamodel/ecmascript/v8/032317/V8DataModel.h b/src/uscxml/plugins/datamodel/ecmascript/v8/032317/V8DataModel.h new file mode 100644 index 0000000..bee59bf --- /dev/null +++ b/src/uscxml/plugins/datamodel/ecmascript/v8/032317/V8DataModel.h @@ -0,0 +1,127 @@ +/** + * @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 + */ + +#ifndef V8DATAMODEL_H_KN8TWG0V +#define V8DATAMODEL_H_KN8TWG0V + +#include "uscxml/config.h" +#include "uscxml/plugins/DataModelImpl.h" + +#include <list> +#include <set> +#include <v8.h> + +#ifdef BUILD_AS_PLUGINS +#include "uscxml/plugins/Plugins.h" +#endif + +namespace uscxml { +class Event; +class Data; +} + +namespace uscxml { + +/** + * @ingroup datamodel + * ECMAScript data-model via Google's V8. + */ + +class V8DataModel : public DataModelImpl { +public: + V8DataModel(); + virtual ~V8DataModel(); + virtual std::shared_ptr<DataModelImpl> create(DataModelCallbacks* callbacks); + + virtual void addExtension(DataModelExtension* ext); + + virtual std::list<std::string> getNames() { + std::list<std::string> names; + names.push_back("ecmascript"); + return names; + } + + virtual bool isValidSyntax(const std::string& expr); + virtual bool isLegalDataValue(const std::string& expr); + + virtual void setEvent(const Event& event); + + // foreach + virtual uint32_t getLength(const std::string& expr); + virtual void setForeach(const std::string& item, + const std::string& array, + const std::string& index, + uint32_t iteration); + + virtual bool evalAsBool(const std::string& expr); + virtual Data evalAsData(const std::string& expr); + virtual Data getAsData(const std::string& content); + + virtual bool isDeclared(const std::string& expr); + + virtual void assign(const std::string& location, + const Data& data, + const std::map<std::string, std::string>& attr = std::map<std::string, std::string>()); + virtual void init(const std::string& location, + const Data& data, + const std::map<std::string, std::string>& attr = std::map<std::string, std::string>()); + +protected: + virtual void setup(); + + static void jsExtension(const v8::FunctionCallbackInfo<v8::Value>& info); + static void jsIn(const v8::FunctionCallbackInfo<v8::Value>& info); + static void jsPrint(const v8::FunctionCallbackInfo<v8::Value>& info); + + //v8::Local<v8::Object> _event; // Persistent events leak .. + v8::Persistent<v8::Context> _context; + static v8::Isolate* _isolate; + + v8::Persistent<v8::Object> _ioProcessors; + v8::Persistent<v8::Object> _invokers; + + static void getIOProcessors(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value>& info); + static void getInvokers(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value>& info); + static void getAttribute(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value>& info); + static void setWithException(v8::Local<v8::String> property, + v8::Local<v8::Value> value, + const v8::PropertyCallbackInfo<void>& info); + + v8::Local<v8::Value> evalAsValue(const std::string& expr, bool dontThrow = false); + v8::Local<v8::Value> getDataAsValue(const Data& data); + Data getValueAsData(const v8::Local<v8::Value>& value); + v8::Local<v8::Value> getNodeAsValue(const XERCESC_NS::DOMNode* node); + void throwExceptionEvent(const v8::TryCatch& tryCatch); + + std::set<DataModelExtension*> _extensions; + +private: + Data getValueAsData(const v8::Local<v8::Value>& value, std::set<v8::Value*>& alreadySeen); + + static std::mutex _initMutex; + +}; + +#ifdef BUILD_AS_PLUGINS +PLUMA_INHERIT_PROVIDER(V8DataModel, DataModelImpl); +#endif + +} + +#endif /* end of include guard: V8DATAMODEL_H_KN8TWG0V */ |