// Copyright (c) 2020 by Chrono

//

// sudo apt-get install protobuf-compiler

// sudo apt-get install libprotobuf-dev

// sudo apt-get install libprotoc-dev

//

// protoc --cpp_out=. sample.proto

//

// g++ protobuf.cpp -std=c++11 -lprotobuf -o a.out;./a.out

// g++ protobuf.cpp -std=c++14 -lprotobuf -o a.out;./a.out

#include <cassert>

#include <iostream>

#include <vector>

// just for convient

//#include "sample.pb.h"

#include "sample.pb.cc"

using namespace std;

void case1()

{

using vendor_t = sample::Vendor;

vendor_t v;

assert(!v.IsInitialized());

v.set_id(1);

v.set_name("sony");

v.set_valid(true);

assert(v.IsInitialized());

assert(v.has_id() && v.id() == 1);

assert(v.has_name() && v.name() == "sony");

assert(v.has_valid() && v.valid());

cout << v.DebugString() << endl;

string enc;

v.SerializeToString(&enc);

vendor_t v2;

assert(!v2.IsInitialized());

v2.ParseFromString(enc);

assert(v.id() == v2.id());

}

void case2()

{

auto alloc_vendor = []()

{

return new sample::Vendor;

};

auto v = alloc_vendor();

v->set_id(1);

v->set_name("sony");

v->set_valid(true);

assert(v->IsInitialized());

using product_t = sample::Product;

product_t p;

p.set_id(1);

p.set_name("walkman");

assert(p.tag_size() == 0);

p.add_tag("fashion");

p.add_tag("type_record");

assert(!p.has_vendor());

p.set_allocated_vendor(v);

}

int main()

{

//GOOGLE_PROTOBUF_VERIFY_VERSION;

case1();

case2();

cout << "protobuf demo" << endl;

}