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anonymous namespace renamed to detail

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This commit is contained in:
Théo DELRIEU
2016-10-17 23:41:53 +02:00
committed by Théo DELRIEU
parent b443edf49e
commit fe628b585b
2 changed files with 292 additions and 19 deletions
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218
test/src/unit-constructor3.cpp
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@ -42,22 +42,12 @@ struct pod_type {
short c;
};
inline bool operator==(pod_type const& lhs, pod_type const& rhs) noexcept
{
return std::tie(lhs.a, lhs.b, lhs.c) == std::tie(rhs.a, rhs.b, rhs.c);
}
struct bit_more_complex_type {
pod_type a;
pod_type b;
std::string c;
};
inline bool operator==(bit_more_complex_type const &lhs,
bit_more_complex_type const &rhs) noexcept {
return std::tie(lhs.a, lhs.b, lhs.c) == std::tie(rhs.a, rhs.b, rhs.c);
}
// best optional implementation ever
template <typename T>
class optional_type
@ -68,11 +58,97 @@ public:
explicit operator bool() const noexcept { return _val != nullptr; }
T const &operator*() const { return *_val; }
optional_type& operator=(T const& t)
{
_val = std::make_shared<T>(t);
return *this;
}
private:
std::shared_ptr<T> _val;
};
struct no_json_traits_type
{
int a;
};
// free to/from_json functions
json to_json(empty_type)
{
return json::object();
}
json to_json(pod_type const& p)
{
return {{"a", p.a}, {"b", p.b}, {"c", p.c}};
}
json to_json(bit_more_complex_type const& p)
{
using nlohmann::to_json;
return json{{"a", to_json(p.a)}, {"b", to_json(p.b)}, {"c", p.c}};
}
template <typename T>
json to_json(optional_type<T> const& opt)
{
using nlohmann::to_json;
if (!opt)
return nullptr;
return to_json(*opt);
}
json to_json(no_json_traits_type const& p)
{
json ret;
ret["a"] = p.a;
return ret;
}
void from_json(json const&j, empty_type& t)
{
assert(j.empty());
t = empty_type{};
}
void from_json(json const&j, pod_type& t)
{
t = {j["a"].get<int>(), j["b"].get<char>(), j["c"].get<short>()};
}
void from_json(json const&j, bit_more_complex_type& t)
{
// relying on json_traits struct here..
t = {j["a"].get<udt::pod_type>(), j["b"].get<udt::pod_type>(),
j["c"].get<std::string>()};
}
void from_json(json const& j, no_json_traits_type& t)
{
t.a = j["a"].get<int>();
}
template <typename T>
void from_json(json const& j, optional_type<T>& t)
{
if (j.is_null())
t = optional_type<T>{};
else
t = j.get<T>();
}
inline bool operator==(pod_type const& lhs, pod_type const& rhs) noexcept
{
return std::tie(lhs.a, lhs.b, lhs.c) == std::tie(rhs.a, rhs.b, rhs.c);
}
inline bool operator==(bit_more_complex_type const &lhs,
bit_more_complex_type const &rhs) noexcept {
return std::tie(lhs.a, lhs.b, lhs.c) == std::tie(rhs.a, rhs.b, rhs.c);
}
template <typename T>
inline bool operator==(optional_type<T> const& lhs, optional_type<T> const& rhs)
{
@ -82,6 +158,11 @@ inline bool operator==(optional_type<T> const& lhs, optional_type<T> const& rhs)
return false;
return *lhs == *rhs;
}
inline bool operator==(no_json_traits_type const& lhs, no_json_traits_type const& rhs)
{
return lhs.a == rhs.a;
}
}
namespace nlohmann
@ -163,7 +244,7 @@ TEST_CASE("constructors for user-defined types", "[udt]")
{
SECTION("empty type")
{
udt::empty_type const e;
udt::empty_type const e{};
auto const j = json{e};
auto k = json::object();
CHECK(j == k);
@ -300,3 +381,118 @@ TEST_CASE("get<> for user-defined types", "[udt]")
}
}
}
TEST_CASE("to_json free function", "[udt]")
{
SECTION("pod_type")
{
auto const e = udt::pod_type{42, 42, 42};
auto const expected = json{{"a", 42}, {"b", 42}, {"c", 42}};
auto const j = nlohmann::to_json(e);
CHECK(j == expected);
}
SECTION("bit_more_complex_type")
{
auto const e =
udt::bit_more_complex_type{{42, 42, 42}, {41, 41, 41}, "forty"};
auto const expected = json{{"a", {{"a", 42}, {"b", 42}, {"c", 42}}},
{"b", {{"a", 41}, {"b", 41}, {"c", 41}}},
{"c", "forty"}};
auto const j = nlohmann::to_json(e);
CHECK(j == expected);
}
SECTION("optional_type")
{
SECTION("from null")
{
udt::optional_type<udt::pod_type> o;
json expected;
auto const j = nlohmann::to_json(o);
CHECK(expected == j);
}
SECTION("from value")
{
udt::optional_type<udt::pod_type> o{{42, 42, 42}};
auto const expected = json{{"a", 42}, {"b", 42}, {"c", 42}};
auto const j = nlohmann::to_json(o);
CHECK(expected == j);
}
}
SECTION("no json_traits specialization")
{
udt::no_json_traits_type t{42};
json expected;
expected["a"] = 42;
auto const j = nlohmann::to_json(t);
CHECK(j == expected);
}
}
TEST_CASE("from_json free function", "[udt]")
{
SECTION("pod_type")
{
auto const expected = udt::pod_type{42, 42, 42};
auto const j = json{{"a", 42}, {"b", 42}, {"c", 42}};
udt::pod_type p;
nlohmann::from_json(j, p);
CHECK(p == expected);
}
SECTION("bit_more_complex_type")
{
auto const expected =
udt::bit_more_complex_type{{42, 42, 42}, {41, 41, 41}, "forty"};
auto const j = json{{"a", {{"a", 42}, {"b", 42}, {"c", 42}}},
{"b", {{"a", 41}, {"b", 41}, {"c", 41}}},
{"c", "forty"}};
udt::bit_more_complex_type p;
nlohmann::from_json(j, p);
CHECK(p == expected);
}
SECTION("optional_type")
{
SECTION("from null")
{
udt::optional_type<udt::pod_type> expected;
json j;
udt::optional_type<udt::pod_type> o;
nlohmann::from_json(j, o);
CHECK(expected == o);
}
SECTION("from value")
{
udt::optional_type<udt::pod_type> expected{{42, 42, 42}};
auto const j = json{{"a", 42}, {"b", 42}, {"c", 42}};
udt::optional_type<udt::pod_type> o;
nlohmann::from_json(j, o);
CHECK(expected == o);
}
}
SECTION("no json_traits specialization")
{
udt::no_json_traits_type expected{42};
udt::no_json_traits_type res;
json j;
j["a"] = 42;
nlohmann::from_json(j, res);
CHECK(res == expected);
res = j.get<udt::no_json_traits_type>();
CHECK(res == expected);
}
}