proxy.cpp
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//
// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/boostorg/json
//
#include <boost/json.hpp>
using namespace boost::json;
class proxy
{
value& jv_;
public:
explicit
proxy(value& jv) noexcept
: jv_(jv)
{
}
proxy
operator[](string_view key)
{
object* obj;
if(jv_.is_null())
obj = &jv_.emplace_object();
else
obj = &jv_.as_object();
return proxy((*obj)[key]);
}
proxy
operator[](std::size_t index)
{
array *arr;
if(jv_.is_null())
arr = &jv_.emplace_array();
else
arr = &jv_.as_array();
if(arr->size() <= index)
arr->resize(index + 1);
return proxy((*arr)[index]);
}
value&
operator*() noexcept
{
return jv_;
}
};
int
main(int, char**)
{
value jv;
*proxy(jv)["user:config"]["authority"]["router"][0]["users"] = 42;
return EXIT_SUCCESS;
}