Automatic c++ Json parser

Use Json as a typical c++ object. No need to get()/set().

Usage:

Inherit your json object from JObject and declare it with macro JOBJECT():

#include <JObject.h>

struct Person : public JObject
{
    JInt id;
    JStr name;

    JOBJECT(Person);
};

struct Employee : public JObject
{
    Person       person;
    JArr<Person> staff;

    JOBJECT(Employee);
};

Declare json fields of the object in a cpp file:

BEG_JFIELDS(Person)
    JFIELD(id),
    JFIELD(name)
END_JFIELDS

BEG_JFIELDS(Employee)
    JFIELD(person),
    JFIELD(staff)
END_JFIELDS

Deserialize Employee object from a json string:

#include <iostream>

int main(int argc, char* argv[])
{
    Employee e;
    e.Deserialize(R"(
        {
          "person":{
            "id": 0,
            "name": "geoge"
          },
          "staff":[
            {"id": 1, "name":"susan"},
            {"id": 2, "name":"mike"}
          ]
        }
    )");

    std::cout << e.person.name() << std::endl;
    std::cout << e.staff[1].name() << std::endl;

    return 0;
}

A json object can also inherit another. See more details in sample code.

JVar can be used if field type is undetermined:

JVar var;
var.Deserialize("123");
var.Deserialize("[1, 2, 3]");
var.Deserialize(R"(
    {
      "one": 1,
      "two": 2.0,
      "three": "3"
    }
)");

Compilation:

cd Json
mkdir build
cd build
cmake ..
make