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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
//
// Test that header file is self-contained.
#include <boost/json/visit.hpp>
#include "test_suite.hpp"
namespace boost {
namespace json {
class visit_test
{
public:
template<class T>
void
check_const(kind k, T t)
{
struct f
{
kind k;
bool operator()(std::nullptr_t const&) const { return k == kind::null; }
bool operator()(bool const&) const { return k == kind::bool_; }
bool operator()(std::int64_t const&) const { return k == kind::int64; }
bool operator()(std::uint64_t const&) const { return k == kind::uint64; }
bool operator()(double const&) const { return k == kind::double_; }
bool operator()(string const&) const { return k == kind::string; }
bool operator()(array const&) const { return k == kind::array; }
bool operator()(object const&) const { return k == kind::object; }
bool operator()(...) const { return false; }
};
value const v(t);
BOOST_TEST(visit(f{k}, v));
}
template<class T>
void
check_mutable(kind k, T t)
{
struct f
{
kind k;
bool operator()(std::nullptr_t&) { return k == kind::null; }
bool operator()(bool&) { return k == kind::bool_; }
bool operator()(std::int64_t&) { return k == kind::int64; }
bool operator()(std::uint64_t&) { return k == kind::uint64; }
bool operator()(double&) { return k == kind::double_; }
bool operator()(string&) { return k == kind::string; }
bool operator()(array&) { return k == kind::array; }
bool operator()(object&) { return k == kind::object; }
bool operator()(...) { return false; }
};
value v(t);
BOOST_TEST(visit(f{k}, v));
}
template<class T>
void
check_rvalue(kind k, T t)
{
struct f
{
kind k;
bool operator()(std::nullptr_t&&) && { return k == kind::null; }
bool operator()(bool&&) && { return k == kind::bool_; }
bool operator()(std::int64_t&&) && { return k == kind::int64; }
bool operator()(std::uint64_t&&) && { return k == kind::uint64; }
bool operator()(double&&) && { return k == kind::double_; }
bool operator()(string&&) && { return k == kind::string; }
bool operator()(array&&) && { return k == kind::array; }
bool operator()(object&&) && { return k == kind::object; }
bool operator()(...) && { return false; }
};
value v(t);
f f_{k};
BOOST_TEST(visit( std::move(f_), std::move(v) ));
}
template<class T>
void
check_nonref(kind k, T t)
{
struct f
{
kind k;
bool operator()(std::nullptr_t) && { return k == kind::null; }
bool operator()(bool) && { return k == kind::bool_; }
bool operator()(std::int64_t) && { return k == kind::int64; }
bool operator()(std::uint64_t) && { return k == kind::uint64; }
bool operator()(double) && { return k == kind::double_; }
bool operator()(string) && { return k == kind::string; }
bool operator()(array) && { return k == kind::array; }
bool operator()(object) && { return k == kind::object; }
bool operator()(...) && { return false; }
};
value v(t);
f f_{k};
BOOST_TEST(visit( std::move(f_), std::move(v) ));
}
void
testVisit()
{
check_const(kind::null, nullptr);
check_const(kind::bool_, true);
check_const(kind::int64, -1);
check_const(kind::uint64, 1U);
check_const(kind::double_, 3.14);
check_const(kind::string, string_kind);
check_const(kind::array, array_kind);
check_const(kind::object, object_kind);
check_mutable(kind::null, nullptr);
check_mutable(kind::bool_, true);
check_mutable(kind::int64, -1);
check_mutable(kind::uint64, 1U);
check_mutable(kind::double_, 3.14);
check_mutable(kind::string, string_kind);
check_mutable(kind::array, array_kind);
check_mutable(kind::object, object_kind);
check_rvalue(kind::null, nullptr);
check_rvalue(kind::bool_, true);
check_rvalue(kind::int64, -1);
check_rvalue(kind::uint64, 1U);
check_rvalue(kind::double_, 3.14);
check_rvalue(kind::string, string_kind);
check_rvalue(kind::array, array_kind);
check_rvalue(kind::object, object_kind);
check_nonref(kind::null, nullptr);
check_nonref(kind::bool_, true);
check_nonref(kind::int64, -1);
check_nonref(kind::uint64, 1U);
check_nonref(kind::double_, 3.14);
check_nonref(kind::string, string_kind);
check_nonref(kind::array, array_kind);
check_nonref(kind::object, object_kind);
}
void run()
{
testVisit();
}
};
TEST_SUITE(visit_test, "boost.json.visit");
} // namespace json
} // namespace boost
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