Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 287 insertions, 0 deletions

diff --git a/src/s3select/rapidjson/example/archiver/archivertest.cpp b/src/s3select/rapidjson/example/archiver/archivertest.cpp
new file mode 100644
index 000000000..417a421a3
--- /dev/null
+++ b/src/s3select/rapidjson/example/archiver/archivertest.cpp
@@ -0,0 +1,287 @@
+#include "archiver.h"
+#include <iostream>
+#include <vector>
+
+//////////////////////////////////////////////////////////////////////////////
+// Test1: simple object
+
+struct Student {
+    Student() : name(), age(), height(), canSwim() {}
+    Student(const std::string name, unsigned age, double height, bool canSwim) :
+        name(name), age(age), height(height), canSwim(canSwim)
+    {}
+
+    std::string name;
+    unsigned age;
+    double height;
+    bool canSwim;
+};
+
+template <typename Archiver>
+Archiver& operator&(Archiver& ar, Student& s) {
+    ar.StartObject();
+    ar.Member("name") & s.name;
+    ar.Member("age") & s.age;
+    ar.Member("height") & s.height;
+    ar.Member("canSwim") & s.canSwim;
+    return ar.EndObject();
+}
+
+std::ostream& operator<<(std::ostream& os, const Student& s) {
+    return os << s.name << " " << s.age << " " << s.height << " " << s.canSwim;
+}
+
+void test1() {
+    std::string json;
+
+    // Serialize
+    {
+        Student s("Lua", 9, 150.5, true);
+
+        JsonWriter writer;
+        writer & s;
+        json = writer.GetString();
+        std::cout << json << std::endl;
+    }
+
+    // Deserialize
+    {
+        Student s;
+        JsonReader reader(json.c_str());
+        reader & s;
+        std::cout << s << std::endl;
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// Test2: std::vector <=> JSON array
+// 
+// You can map a JSON array to other data structures as well
+
+struct Group {
+    Group() : groupName(), students() {}
+    std::string groupName;
+    std::vector<Student> students;
+};
+
+template <typename Archiver>
+Archiver& operator&(Archiver& ar, Group& g) {
+    ar.StartObject();
+    
+    ar.Member("groupName");
+    ar & g.groupName;
+
+    ar.Member("students");
+    size_t studentCount = g.students.size();
+    ar.StartArray(&studentCount);
+    if (ar.IsReader)
+        g.students.resize(studentCount);
+    for (size_t i = 0; i < studentCount; i++)
+        ar & g.students[i];
+    ar.EndArray();
+
+    return ar.EndObject();
+}
+
+std::ostream& operator<<(std::ostream& os, const Group& g) {
+    os << g.groupName << std::endl;
+    for (std::vector<Student>::const_iterator itr = g.students.begin(); itr != g.students.end(); ++itr)
+        os << *itr << std::endl;
+    return os;
+}
+
+void test2() {
+    std::string json;
+
+    // Serialize
+    {
+        Group g;
+        g.groupName = "Rainbow";
+
+        Student s1("Lua", 9, 150.5, true);
+        Student s2("Mio", 7, 120.0, false);
+        g.students.push_back(s1);
+        g.students.push_back(s2);
+
+        JsonWriter writer;
+        writer & g;
+        json = writer.GetString();
+        std::cout << json << std::endl;
+    }
+
+    // Deserialize
+    {
+        Group g;
+        JsonReader reader(json.c_str());
+        reader & g;
+        std::cout << g << std::endl;
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// Test3: polymorphism & friend
+//
+// Note that friendship is not necessary but make things simpler.
+
+class Shape {
+public:
+    virtual ~Shape() {}
+    virtual const char* GetType() const = 0;
+    virtual void Print(std::ostream& os) const = 0;
+
+protected:
+    Shape() : x_(), y_() {}
+    Shape(double x, double y) : x_(x), y_(y) {}
+
+    template <typename Archiver>
+    friend Archiver& operator&(Archiver& ar, Shape& s);
+
+    double x_, y_;
+};
+
+template <typename Archiver>
+Archiver& operator&(Archiver& ar, Shape& s) {
+    ar.Member("x") & s.x_;
+    ar.Member("y") & s.y_;
+    return ar;
+}
+
+class Circle : public Shape {
+public:
+    Circle() : radius_() {}
+    Circle(double x, double y, double radius) : Shape(x, y), radius_(radius) {}
+    ~Circle() {}
+
+    const char* GetType() const { return "Circle"; }
+
+    void Print(std::ostream& os) const {
+        os << "Circle (" << x_ << ", " << y_ << ")" << " radius = " << radius_;
+    }
+
+private:
+    template <typename Archiver>
+    friend Archiver& operator&(Archiver& ar, Circle& c);
+
+    double radius_;
+};
+
+template <typename Archiver>
+Archiver& operator&(Archiver& ar, Circle& c) {
+    ar & static_cast<Shape&>(c);
+    ar.Member("radius") & c.radius_;
+    return ar;
+}
+
+class Box : public Shape {
+public:
+    Box() : width_(), height_() {}
+    Box(double x, double y, double width, double height) : Shape(x, y), width_(width), height_(height) {}
+    ~Box() {}
+
+    const char* GetType() const { return "Box"; }
+
+    void Print(std::ostream& os) const {
+        os << "Box (" << x_ << ", " << y_ << ")" << " width = " << width_ << " height = " << height_;
+    }
+
+private:
+    template <typename Archiver>
+    friend Archiver& operator&(Archiver& ar, Box& b);
+
+    double width_, height_;
+};
+
+template <typename Archiver>
+Archiver& operator&(Archiver& ar, Box& b) {
+    ar & static_cast<Shape&>(b);
+    ar.Member("width") & b.width_;
+    ar.Member("height") & b.height_;
+    return ar;
+}
+
+class Canvas {
+public:
+    Canvas() : shapes_() {}
+    ~Canvas() { Clear(); }
+    
+    void Clear() {
+        for (std::vector<Shape*>::iterator itr = shapes_.begin(); itr != shapes_.end(); ++itr)
+            delete *itr;
+    }
+
+    void AddShape(Shape* shape) { shapes_.push_back(shape); }
+    
+    void Print(std::ostream& os) {
+        for (std::vector<Shape*>::iterator itr = shapes_.begin(); itr != shapes_.end(); ++itr) {
+            (*itr)->Print(os);
+            std::cout << std::endl;
+        }
+    }
+
+private:
+    template <typename Archiver>
+    friend Archiver& operator&(Archiver& ar, Canvas& c);
+
+    std::vector<Shape*> shapes_;
+};
+
+template <typename Archiver>
+Archiver& operator&(Archiver& ar, Shape*& shape) {
+    std::string type = ar.IsReader ? "" : shape->GetType();
+    ar.StartObject();
+    ar.Member("type") & type;
+    if (type == "Circle") {
+        if (ar.IsReader) shape = new Circle;
+        ar & static_cast<Circle&>(*shape);
+    }
+    else if (type == "Box") {
+        if (ar.IsReader) shape = new Box;
+        ar & static_cast<Box&>(*shape);
+    }
+    return ar.EndObject();
+}
+
+template <typename Archiver>
+Archiver& operator&(Archiver& ar, Canvas& c) {
+    size_t shapeCount = c.shapes_.size();
+    ar.StartArray(&shapeCount);
+    if (ar.IsReader) {
+        c.Clear();
+        c.shapes_.resize(shapeCount);
+    }
+    for (size_t i = 0; i < shapeCount; i++)
+        ar & c.shapes_[i];
+    return ar.EndArray();
+}
+
+void test3() {
+    std::string json;
+
+    // Serialize
+    {
+        Canvas c;
+        c.AddShape(new Circle(1.0, 2.0, 3.0));
+        c.AddShape(new Box(4.0, 5.0, 6.0, 7.0));
+
+        JsonWriter writer;
+        writer & c;
+        json = writer.GetString();
+        std::cout << json << std::endl;
+    }
+
+    // Deserialize
+    {
+        Canvas c;
+        JsonReader reader(json.c_str());
+        reader & c;
+        c.Print(std::cout);
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+int main() {
+    test1();
+    test2();
+    test3();
+}