MGen是一个支持跨语言的对象序列化项目,由以下两部分组成:
源码生成的工具(MGen编译器)
语言的支持库
MGen类似Gooogle的ProtocolBuffers,可序列化到JSON和二进制格式。
目前支持的语言有:
C++
Java
JavaScript
示例代码:
#include <com/fruitcompany/ClassRegistry.h>#include <mgen/serialization/JsonPrettyWriter.h>#include <mgen/serialization/JsonReader.h>using namespace mgen;using namespace com::fruitcompany;using namespace com::fruitcompany::fruits;// A class registry for type identificationconst ClassRegistry registry;std::string toJSON(const MGenBase& object) { // Create a target to stream the object to std::stringstream stream; // Create a writer object JsonPrettyWriter<std::stringstream, ClassRegistry> writer(stream, registry); // Write the object writer.writeObject(object); // Return the written string return stream.str();}template <typename T>T fromJSON(const std::string& json) { // Create a data source to stream objects from std::stringstream stream(json); // Create a reader object JsonReader<std::stringstream, ClassRegistry> reader(stream, registry); // Read object. You can read T* polymorphicly with reader.readObject<T>() return reader.readStatic<T>();}int main() { // Create some objects const Apple apple(Brand_A, 4); const Banana banana = Banana().setLength(5).setBrand(Brand_B); // Serialize them to JSON and print them std::cout << toJSON(banana) << std::endl; std::cout << toJSON(apple) << std::endl; // Read the objects back from their serialized form const Apple appleBack = fromJSON<Apple>(toJSON(apple)); const Banana bananaBack = fromJSON<Banana>(toJSON(banana)); // Check that they are still the same std::cout << (apple == appleBack) << std::endl; std::cout << (banana == bananaBack) << std::endl; return 0;}
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