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put const to the left

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This commit is contained in:
Théo DELRIEU 2017-01-15 20:19:54 +01:00
parent f1482d1f01
commit 07bc82d3a7
2 changed files with 63 additions and 63 deletions
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54
src/json.hpp
View file

@ -168,7 +168,7 @@ using is_unscoped_enum =
namespace detail
{
template <typename Json> std::string type_name(Json const &j)
template <typename Json> std::string type_name(const Json &j)
{
switch (j.m_type)
{
@ -496,7 +496,7 @@ template <typename Json, typename ArithmeticType,
not std::is_same<ArithmeticType,
typename Json::boolean_t>::value,
int> = 0>
void get_arithmetic_value(Json const &j, ArithmeticType &val)
void get_arithmetic_value(const Json &j, ArithmeticType &val)
{
// unsigned must be checked first, since is_number_integer() == true for unsigned
if (j.is_number_unsigned())
@ -565,7 +565,7 @@ template <
is_compatible_array_type<Json, CompatibleArrayType>::value or
std::is_same<typename Json::array_t, CompatibleArrayType>::value,
int> = 0>
void to_json(Json &j, CompatibleArrayType const &arr)
void to_json(Json &j, const CompatibleArrayType &arr)
{
external_constructor<value_t::array>::construct(j, arr);
}
@ -574,13 +574,13 @@ template <
typename Json, typename CompatibleObjectType,
enable_if_t<is_compatible_object_type<Json, CompatibleObjectType>::value,
int> = 0>
void to_json(Json &j, CompatibleObjectType const &arr)
void to_json(Json &j, const CompatibleObjectType &arr)
{
external_constructor<value_t::object>::construct(j, arr);
}
template <typename Json>
void from_json(Json const& j, typename Json::boolean_t& b)
void from_json(const Json & j, typename Json::boolean_t& b)
{
if (!j.is_boolean())
throw std::domain_error("type must be boolean, but is " + type_name(j));
@ -588,7 +588,7 @@ void from_json(Json const& j, typename Json::boolean_t& b)
}
template <typename Json>
void from_json(Json const& j, typename Json::string_t& s)
void from_json(const Json & j, typename Json::string_t& s)
{
if (!j.is_string())
throw std::domain_error("type must be string, but is " + type_name(j));
@ -596,26 +596,26 @@ void from_json(Json const& j, typename Json::string_t& s)
}
template <typename Json>
void from_json(Json const& j, typename Json::number_float_t& val)
void from_json(const Json & j, typename Json::number_float_t& val)
{
get_arithmetic_value(j, val);
}
template <typename Json>
void from_json(Json const& j, typename Json::number_unsigned_t& val)
void from_json(const Json & j, typename Json::number_unsigned_t& val)
{
get_arithmetic_value(j, val);
}
template <typename Json>
void from_json(Json const& j, typename Json::number_integer_t& val)
void from_json(const Json & j, typename Json::number_integer_t& val)
{
get_arithmetic_value(j, val);
}
template <typename Json, typename UnscopedEnumType,
enable_if_t<is_unscoped_enum<UnscopedEnumType>::value, int> = 0>
void from_json(Json const &j, UnscopedEnumType& e)
void from_json(const Json &j, UnscopedEnumType& e)
{
typename std::underlying_type<UnscopedEnumType>::type val = e;
get_arithmetic_value(j, val);
@ -623,7 +623,7 @@ void from_json(Json const &j, UnscopedEnumType& e)
}
template <typename Json>
void from_json(Json const &j, typename Json::array_t &arr)
void from_json(const Json &j, typename Json::array_t &arr)
{
if (!j.is_array())
throw std::domain_error("type must be array, but is " + type_name(j));
@ -632,7 +632,7 @@ void from_json(Json const &j, typename Json::array_t &arr)
// forward_list doesn't have an insert method, TODO find a way to avoid including forward_list
template <typename Json, typename T, typename Allocator>
void from_json(Json const&j, std::forward_list<T, Allocator>& l)
void from_json(const Json &j, std::forward_list<T, Allocator>& l)
{
// do not perform the check when user wants to retrieve jsons
// (except when it's null.. ?)
@ -648,13 +648,13 @@ void from_json(Json const&j, std::forward_list<T, Allocator>& l)
}
template <typename Json, typename CompatibleArrayType>
void from_json_array_impl(Json const &j, CompatibleArrayType &arr, priority_tag<0>)
void from_json_array_impl(const Json &j, CompatibleArrayType &arr, priority_tag<0>)
{
using std::begin;
using std::end;
std::transform(
j.begin(), j.end(), std::inserter(arr, end(arr)), [](Json const &i)
j.begin(), j.end(), std::inserter(arr, end(arr)), [](const Json &i)
{
// get<Json>() returns *this, this won't call a from_json method when
// value_type is Json
@ -663,7 +663,7 @@ void from_json_array_impl(Json const &j, CompatibleArrayType &arr, priority_tag<
}
template <typename Json, typename CompatibleArrayType>
auto from_json_array_impl(Json const &j, CompatibleArrayType &arr, priority_tag<1>)
auto from_json_array_impl(const Json &j, CompatibleArrayType &arr, priority_tag<1>)
-> decltype(
arr.reserve(std::declval<typename CompatibleArrayType::size_type>()),
void())
@ -673,7 +673,7 @@ auto from_json_array_impl(Json const &j, CompatibleArrayType &arr, priority_tag<
arr.reserve(j.size());
std::transform(
j.begin(), j.end(), std::inserter(arr, end(arr)), [](Json const &i)
j.begin(), j.end(), std::inserter(arr, end(arr)), [](const Json &i)
{
// get<Json>() returns *this, this won't call a from_json method when
// value_type is Json
@ -687,7 +687,7 @@ template <
not std::is_same<typename Json::array_t,
CompatibleArrayType>::value,
int> = 0>
void from_json(Json const &j, CompatibleArrayType &arr)
void from_json(const Json &j, CompatibleArrayType &arr)
{
if (j.is_null())
throw std::domain_error("type must be array, but is " + type_name(j));
@ -705,7 +705,7 @@ template <
typename Json, typename CompatibleObjectType,
enable_if_t<is_compatible_object_type<Json, CompatibleObjectType>::value,
int> = 0>
void from_json(Json const &j, CompatibleObjectType &obj)
void from_json(const Json &j, CompatibleObjectType &obj)
{
if (!j.is_object())
throw std::domain_error("type must be object, but is " + type_name(j));
@ -731,7 +731,7 @@ template <
not std::is_same<ArithmeticType, typename Json::number_float_t>::value and
not std::is_same<ArithmeticType, typename Json::boolean_t>::value,
int> = 0>
void from_json(Json const &j, ArithmeticType &val)
void from_json(const Json &j, ArithmeticType &val)
{
if (j.is_number_unsigned())
val = static_cast<ArithmeticType>(*j.template get_ptr<const typename Json::number_unsigned_t*>());
@ -775,7 +775,7 @@ struct from_json_fn
{
private:
template <typename Json, typename T>
auto call(Json const &j, T &val, priority_tag<1>) const
auto call(const Json &j, T &val, priority_tag<1>) const
noexcept(noexcept(from_json(j, val)))
-> decltype(from_json(j, val), void())
{
@ -783,14 +783,14 @@ private:
}
template <typename Json, typename T>
void call(Json const&, T&, priority_tag<0>) const noexcept
void call(const Json &, T&, priority_tag<0>) const noexcept
{
static_assert(sizeof(Json) == 0, "from_json method in T's namespace can not be called");
}
public:
template <typename Json, typename T>
void operator()(Json const &j, T &val) const
void operator()(const Json &j, T &val) const
noexcept(noexcept(std::declval<from_json_fn>().call(j, val, priority_tag<1>{})))
{
return call(j, val, priority_tag<1>{});
@ -831,8 +831,8 @@ constexpr T static_const<T>::value;
inline namespace
{
constexpr auto const& to_json = static_const<detail::to_json_fn>::value;
constexpr auto const& from_json = static_const<detail::from_json_fn>::value;
constexpr const auto & to_json = static_const<detail::to_json_fn>::value;
constexpr const auto & from_json = static_const<detail::from_json_fn>::value;
}
// default JSONSerializer template argument, doesn't care about template argument
@ -948,7 +948,7 @@ class basic_json
{
private:
template <::nlohmann::value_t> friend struct detail::external_constructor;
template <typename Json> friend std::string detail::type_name(Json const &);
template <typename Json> friend std::string detail::type_name(const Json &);
/// workaround type for MSVC
using basic_json_t = basic_json<ObjectType, ArrayType, StringType,
BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType,
@ -3030,7 +3030,7 @@ class basic_json
// static assert ?
// i know there is a special behaviour for boolean_t* and such
auto get() const noexcept(noexcept(JSONSerializer<uncvref_t<T>>::from_json(
std::declval<basic_json_t const &>(), std::declval<uncvref_t<T> &>())))
std::declval<const basic_json_t &>(), std::declval<uncvref_t<T> &>())))
-> uncvref_t<T>
{
using type = uncvref_t<T>;
@ -3052,7 +3052,7 @@ class basic_json
detail::has_non_default_from_json<basic_json_t,
uncvref_t<T>>::value,
int> = 0>
uncvref_t<T> get() const noexcept(noexcept(JSONSerializer<T>::from_json(std::declval<basic_json_t const&>())))
uncvref_t<T> get() const noexcept(noexcept(JSONSerializer<T>::from_json(std::declval<const basic_json_t &>())))
{
return JSONSerializer<T>::from_json(*this);
}

72
test/src/unit-udt.cpp
View file

@ -91,7 +91,7 @@ void to_json(Json& j, age a)
}
template <typename Json>
void to_json(Json& j, name const& n)
void to_json(Json& j, const name& n)
{
j = n.m_val;
}
@ -114,22 +114,22 @@ void to_json(Json& j, country c)
}
template <typename Json>
void to_json(Json& j, person const& p)
void to_json(Json& j, const person & p)
{
j = Json{{"age", p.m_age}, {"name", p.m_name}, {"country", p.m_country}};
}
void to_json(nlohmann::json& j, address const& a)
void to_json(nlohmann::json& j, const address & a)
{
j = a.m_val;
}
void to_json(nlohmann::json& j, contact const& c)
void to_json(nlohmann::json& j, const contact & c)
{
j = json{{"person", c.m_person}, {"address", c.m_address}};
}
void to_json(nlohmann::json& j, contact_book const& cb)
void to_json(nlohmann::json& j, const contact_book & cb)
{
j = json{{"name", cb.m_book_name}, {"contacts", cb.m_contacts}};
}
@ -140,28 +140,28 @@ bool operator==(age lhs, age rhs)
return lhs.m_val == rhs.m_val;
}
bool operator==(address const& lhs, address const& rhs)
bool operator==(const address & lhs, const address & rhs)
{
return lhs.m_val == rhs.m_val;
}
bool operator==(name const& lhs, name const& rhs)
bool operator==(const name & lhs, const name & rhs)
{
return lhs.m_val == rhs.m_val;
}
bool operator==(person const& lhs, person const& rhs)
bool operator==(const person & lhs, const person & rhs)
{
return std::tie(lhs.m_name, lhs.m_age) == std::tie(rhs.m_name, rhs.m_age);
}
bool operator==(contact const& lhs, contact const& rhs)
bool operator==(const contact & lhs, const contact & rhs)
{
return std::tie(lhs.m_person, lhs.m_address) ==
std::tie(rhs.m_person, rhs.m_address);
}
bool operator==(contact_book const& lhs, contact_book const& rhs)
bool operator==(const contact_book & lhs, const contact_book & rhs)
{
return std::tie(lhs.m_book_name, lhs.m_contacts) ==
std::tie(rhs.m_book_name, rhs.m_contacts);
@ -172,19 +172,19 @@ bool operator==(contact_book const& lhs, contact_book const& rhs)
namespace udt
{
template <typename Json>
void from_json(Json const& j, age& a)
void from_json(const Json & j, age& a)
{
a.m_val = j.template get<int>();
}
template <typename Json>
void from_json(Json const& j, name& n)
void from_json(const Json & j, name& n)
{
n.m_val = j.template get<std::string>();
}
template <typename Json>
void from_json(Json const& j, country& c)
void from_json(const Json & j, country& c)
{
const auto str = j.template get<std::string>();
static const std::map<std::string, country> m =
@ -200,25 +200,25 @@ void from_json(Json const& j, country& c)
}
template <typename Json>
void from_json(Json const& j, person& p)
void from_json(const Json & j, person& p)
{
p.m_age = j["age"].template get<age>();
p.m_name = j["name"].template get<name>();
p.m_country = j["country"].template get<country>();
}
void from_json(nlohmann::json const& j, address& a)
void from_json(const nlohmann::json & j, address& a)
{
a.m_val = j.get<std::string>();
}
void from_json(nlohmann::json const& j, contact& c)
void from_json(const nlohmann::json & j, contact& c)
{
c.m_person = j["person"].get<person>();
c.m_address = j["address"].get<address>();
}
void from_json(nlohmann::json const& j, contact_book& cb)
void from_json(const nlohmann::json & j, contact_book& cb)
{
cb.m_book_name = j["name"].get<name>();
cb.m_contacts = j["contacts"].get<std::vector<contact>>();
@ -297,7 +297,7 @@ namespace nlohmann
template <typename T>
struct adl_serializer<std::shared_ptr<T>>
{
static void to_json(json& j, std::shared_ptr<T> const& opt)
static void to_json(json& j, const std::shared_ptr<T> & opt)
{
if (opt)
{
@ -309,7 +309,7 @@ struct adl_serializer<std::shared_ptr<T>>
}
}
static void from_json(json const& j, std::shared_ptr<T>& opt)
static void from_json(const json & j, std::shared_ptr<T>& opt)
{
if (j.is_null())
{
@ -325,12 +325,12 @@ struct adl_serializer<std::shared_ptr<T>>
template <>
struct adl_serializer<udt::legacy_type>
{
static void to_json(json& j, udt::legacy_type const& l)
static void to_json(json& j, const udt::legacy_type & l)
{
j = std::stoi(l.number);
}
static void from_json(json const& j, udt::legacy_type& l)
static void from_json(const json & j, udt::legacy_type& l)
{
l.number = std::to_string(j.get<int>());
}
@ -395,18 +395,18 @@ template <>
struct adl_serializer<std::vector<float>>
{
using type = std::vector<float>;
static void to_json(json& j, type const&)
static void to_json(json& j, const type &)
{
j = "hijacked!";
}
static void from_json(json const&, type& opt)
static void from_json(const json &, type& opt)
{
opt = {42.0, 42.0, 42.0};
}
// preferred version
static type from_json(json const&)
static type from_json(const json &)
{
return {4.0, 5.0, 6.0};
}
@ -427,7 +427,7 @@ namespace nlohmann
template <typename T>
struct adl_serializer<std::unique_ptr<T>>
{
static void to_json(json& j, std::unique_ptr<T> const& opt)
static void to_json(json& j, const std::unique_ptr<T> & opt)
{
if (opt)
{
@ -440,7 +440,7 @@ struct adl_serializer<std::unique_ptr<T>>
}
// this is the overload needed for non-copyable types,
static std::unique_ptr<T> from_json(json const& j)
static std::unique_ptr<T> from_json(const json & j)
{
if (j.is_null())
{
@ -496,7 +496,7 @@ struct pod_serializer
typename Json, typename U = T,
typename std::enable_if<
not(std::is_pod<U>::value and std::is_class<U>::value), int>::type = 0>
static void from_json(Json const &j, U &t)
static void from_json(const Json &j, U &t)
{
using nlohmann::from_json;
from_json(j, t);
@ -506,7 +506,7 @@ struct pod_serializer
template <typename Json, typename U = T,
typename std::enable_if<
std::is_pod<U>::value and std::is_class<U>::value, int>::type = 0>
static void from_json(Json const &j, U &t)
static void from_json(const Json &j, U &t)
{
std::uint64_t value;
// TODO The following block is no longer relevant in this serializer, make another one that shows the issue
@ -532,7 +532,7 @@ struct pod_serializer
typename Json, typename U = T,
typename std::enable_if<
not(std::is_pod<U>::value and std::is_class<U>::value), int>::type = 0>
static void to_json(Json &j, T const &t)
static void to_json(Json &j, const T &t)
{
using nlohmann::to_json;
to_json(j, t);
@ -541,9 +541,9 @@ struct pod_serializer
template <typename Json, typename U = T,
typename std::enable_if<
std::is_pod<U>::value and std::is_class<U>::value, int>::type = 0>
static void to_json(Json &j, T const &t) noexcept
static void to_json(Json &j, const T &t) noexcept
{
auto bytes = static_cast<unsigned char const *>(static_cast<void const *>(&t));
auto bytes = static_cast< const unsigned char*>(static_cast<const void *>(&t));
std::uint64_t value = bytes[0];
for (auto i = 1; i < 8; ++i)
value |= std::uint64_t{bytes[i]} << 8 * i;
@ -566,13 +566,13 @@ struct non_pod
};
template <typename Json>
void to_json(Json& j, non_pod const& np)
void to_json(Json& j, const non_pod & np)
{
j = np.s;
}
template <typename Json>
void from_json(Json const& j, non_pod& np)
void from_json(const Json & j, non_pod& np)
{
np.s = j.template get<std::string>();
}
@ -583,7 +583,7 @@ bool operator==(small_pod lhs, small_pod rhs) noexcept
std::tie(rhs.begin, rhs.middle, rhs.end);
}
bool operator==(non_pod const &lhs, non_pod const &rhs) noexcept
bool operator==(const non_pod &lhs, const non_pod &rhs) noexcept
{
return lhs.s == rhs.s;
}
@ -622,13 +622,13 @@ using custom_json = nlohmann::basic_json<std::map, std::vector, std::string, boo
template <typename T, typename>
struct another_adl_serializer
{
static void from_json(custom_json const& j , T& t)
static void from_json(const custom_json & j , T& t)
{
using nlohmann::from_json;
from_json(j, t);
}
static void to_json(custom_json& j , T const& t)
static void to_json(custom_json& j , const T & t)
{
using nlohmann::to_json;
to_json(j, t);