From 21881606f23b91764be76631471fd629a7a0e440 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9o=20DELRIEU?= <delrieutheo@gmail.com>
Date: Mon, 14 Aug 2017 16:40:38 +0200
Subject: [PATCH] add detail/conversions/to_json.hpp
---
Makefile | 3 +-
src/detail/conversions/to_json.hpp | 337 +++++++++++++++++++++++++++++
src/json.hpp | 322 +--------------------------
3 files changed, 340 insertions(+), 322 deletions(-)
create mode 100644 src/detail/conversions/to_json.hpp
diff --git a/Makefile b/Makefile
index 22df2ff2..0e6a8b39 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,8 @@ SRCS = ${SRCDIR}/json.hpp \
${SRCDIR}/detail/meta.hpp \
${SRCDIR}/detail/exceptions.hpp \
${SRCDIR}/detail/value_t.hpp \
- ${SRCDIR}/detail/conversions/from_json.hpp
+ ${SRCDIR}/detail/conversions/from_json.hpp \
+ ${SRCDIR}/detail/conversions/to_json.hpp
diff --git a/src/detail/conversions/to_json.hpp b/src/detail/conversions/to_json.hpp
new file mode 100644
index 00000000..0c6d4749
--- /dev/null
+++ b/src/detail/conversions/to_json.hpp
@@ -0,0 +1,337 @@
+#ifndef NLOHMANN_JSON_DETAIL_CONVERSIONS_TO_JSON_HPP
+#define NLOHMANN_JSON_DETAIL_CONVERSIONS_TO_JSON_HPP
+
+#include <type_traits>
+#include <utility>
+#include <valarray>
+
+#include "detail/meta.hpp"
+#include "detail/value_t.hpp"
+
+namespace nlohmann
+{
+namespace detail
+{
+//////////////////
+// constructors //
+//////////////////
+
+template<value_t> struct external_constructor;
+
+template<>
+struct external_constructor<value_t::boolean>
+{
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, typename BasicJsonType::boolean_t b) noexcept
+ {
+ j.m_type = value_t::boolean;
+ j.m_value = b;
+ j.assert_invariant();
+ }
+};
+
+template<>
+struct external_constructor<value_t::string>
+{
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, const typename BasicJsonType::string_t& s)
+ {
+ j.m_type = value_t::string;
+ j.m_value = s;
+ j.assert_invariant();
+ }
+
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, typename BasicJsonType::string_t&& s)
+ {
+ j.m_type = value_t::string;
+ j.m_value = std::move(s);
+ j.assert_invariant();
+ }
+};
+
+template<>
+struct external_constructor<value_t::number_float>
+{
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, typename BasicJsonType::number_float_t val) noexcept
+ {
+ j.m_type = value_t::number_float;
+ j.m_value = val;
+ j.assert_invariant();
+ }
+};
+
+template<>
+struct external_constructor<value_t::number_unsigned>
+{
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, typename BasicJsonType::number_unsigned_t val) noexcept
+ {
+ j.m_type = value_t::number_unsigned;
+ j.m_value = val;
+ j.assert_invariant();
+ }
+};
+
+template<>
+struct external_constructor<value_t::number_integer>
+{
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, typename BasicJsonType::number_integer_t val) noexcept
+ {
+ j.m_type = value_t::number_integer;
+ j.m_value = val;
+ j.assert_invariant();
+ }
+};
+
+template<>
+struct external_constructor<value_t::array>
+{
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, const typename BasicJsonType::array_t& arr)
+ {
+ j.m_type = value_t::array;
+ j.m_value = arr;
+ j.assert_invariant();
+ }
+
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
+ {
+ j.m_type = value_t::array;
+ j.m_value = std::move(arr);
+ j.assert_invariant();
+ }
+
+ template<typename BasicJsonType, typename CompatibleArrayType,
+ enable_if_t<not std::is_same<CompatibleArrayType, typename BasicJsonType::array_t>::value,
+ int> = 0>
+ static void construct(BasicJsonType& j, const CompatibleArrayType& arr)
+ {
+ using std::begin;
+ using std::end;
+ j.m_type = value_t::array;
+ j.m_value.array = j.template create<typename BasicJsonType::array_t>(begin(arr), end(arr));
+ j.assert_invariant();
+ }
+
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, const std::vector<bool>& arr)
+ {
+ j.m_type = value_t::array;
+ j.m_value = value_t::array;
+ j.m_value.array->reserve(arr.size());
+ for (const bool x : arr)
+ {
+ j.m_value.array->push_back(x);
+ }
+ j.assert_invariant();
+ }
+
+ template<typename BasicJsonType, typename T,
+ enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0>
+ static void construct(BasicJsonType& j, const std::valarray<T>& arr)
+ {
+ j.m_type = value_t::array;
+ j.m_value = value_t::array;
+ j.m_value.array->resize(arr.size());
+ std::copy(std::begin(arr), std::end(arr), j.m_value.array->begin());
+ j.assert_invariant();
+ }
+};
+
+template<>
+struct external_constructor<value_t::object>
+{
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, const typename BasicJsonType::object_t& obj)
+ {
+ j.m_type = value_t::object;
+ j.m_value = obj;
+ j.assert_invariant();
+ }
+
+ template<typename BasicJsonType>
+ static void construct(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
+ {
+ j.m_type = value_t::object;
+ j.m_value = std::move(obj);
+ j.assert_invariant();
+ }
+
+ template<typename BasicJsonType, typename CompatibleObjectType,
+ enable_if_t<not std::is_same<CompatibleObjectType, typename BasicJsonType::object_t>::value, int> = 0>
+ static void construct(BasicJsonType& j, const CompatibleObjectType& obj)
+ {
+ using std::begin;
+ using std::end;
+
+ j.m_type = value_t::object;
+ j.m_value.object = j.template create<typename BasicJsonType::object_t>(begin(obj), end(obj));
+ j.assert_invariant();
+ }
+};
+
+/////////////
+// to_json //
+/////////////
+
+template<typename BasicJsonType, typename T,
+ enable_if_t<std::is_same<T, typename BasicJsonType::boolean_t>::value, int> = 0>
+void to_json(BasicJsonType& j, T b) noexcept
+{
+ external_constructor<value_t::boolean>::construct(j, b);
+}
+
+template<typename BasicJsonType, typename CompatibleString,
+ enable_if_t<std::is_constructible<typename BasicJsonType::string_t, CompatibleString>::value, int> = 0>
+void to_json(BasicJsonType& j, const CompatibleString& s)
+{
+ external_constructor<value_t::string>::construct(j, s);
+}
+
+template<typename BasicJsonType>
+void to_json(BasicJsonType& j, typename BasicJsonType::string_t&& s)
+{
+ external_constructor<value_t::string>::construct(j, std::move(s));
+}
+
+template<typename BasicJsonType, typename FloatType,
+ enable_if_t<std::is_floating_point<FloatType>::value, int> = 0>
+void to_json(BasicJsonType& j, FloatType val) noexcept
+{
+ external_constructor<value_t::number_float>::construct(j, static_cast<typename BasicJsonType::number_float_t>(val));
+}
+
+template<typename BasicJsonType, typename CompatibleNumberUnsignedType,
+ enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_unsigned_t, CompatibleNumberUnsignedType>::value, int> = 0>
+void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept
+{
+ external_constructor<value_t::number_unsigned>::construct(j, static_cast<typename BasicJsonType::number_unsigned_t>(val));
+}
+
+template<typename BasicJsonType, typename CompatibleNumberIntegerType,
+ enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_integer_t, CompatibleNumberIntegerType>::value, int> = 0>
+void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept
+{
+ external_constructor<value_t::number_integer>::construct(j, static_cast<typename BasicJsonType::number_integer_t>(val));
+}
+
+template<typename BasicJsonType, typename EnumType,
+ enable_if_t<std::is_enum<EnumType>::value, int> = 0>
+void to_json(BasicJsonType& j, EnumType e) noexcept
+{
+ using underlying_type = typename std::underlying_type<EnumType>::type;
+ external_constructor<value_t::number_integer>::construct(j, static_cast<underlying_type>(e));
+}
+
+template<typename BasicJsonType>
+void to_json(BasicJsonType& j, const std::vector<bool>& e)
+{
+ external_constructor<value_t::array>::construct(j, e);
+}
+
+template<typename BasicJsonType, typename CompatibleArrayType,
+ enable_if_t<is_compatible_array_type<BasicJsonType, CompatibleArrayType>::value or
+ std::is_same<typename BasicJsonType::array_t, CompatibleArrayType>::value,
+ int> = 0>
+void to_json(BasicJsonType& j, const CompatibleArrayType& arr)
+{
+ external_constructor<value_t::array>::construct(j, arr);
+}
+
+template<typename BasicJsonType, typename T,
+ enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0>
+void to_json(BasicJsonType& j, std::valarray<T> arr)
+{
+ external_constructor<value_t::array>::construct(j, std::move(arr));
+}
+
+template<typename BasicJsonType>
+void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
+{
+ external_constructor<value_t::array>::construct(j, std::move(arr));
+}
+
+template<typename BasicJsonType, typename CompatibleObjectType,
+ enable_if_t<is_compatible_object_type<BasicJsonType, CompatibleObjectType>::value, int> = 0>
+void to_json(BasicJsonType& j, const CompatibleObjectType& obj)
+{
+ external_constructor<value_t::object>::construct(j, obj);
+}
+
+template<typename BasicJsonType>
+void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
+{
+ external_constructor<value_t::object>::construct(j, std::move(obj));
+}
+
+template<typename BasicJsonType, typename T, std::size_t N,
+ enable_if_t<not std::is_constructible<typename BasicJsonType::string_t, T (&)[N]>::value, int> = 0>
+void to_json(BasicJsonType& j, T (&arr)[N])
+{
+ external_constructor<value_t::array>::construct(j, arr);
+}
+
+template<typename BasicJsonType, typename... Args>
+void to_json(BasicJsonType& j, const std::pair<Args...>& p)
+{
+ j = {p.first, p.second};
+}
+
+template<typename BasicJsonType, typename Tuple, std::size_t... Idx>
+void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence<Idx...>)
+{
+ j = {std::get<Idx>(t)...};
+}
+
+template<typename BasicJsonType, typename... Args>
+void to_json(BasicJsonType& j, const std::tuple<Args...>& t)
+{
+ to_json_tuple_impl(j, t, index_sequence_for<Args...> {});
+}
+
+struct to_json_fn
+{
+ private:
+ template<typename BasicJsonType, typename T>
+ auto call(BasicJsonType& j, T&& val, priority_tag<1> /*unused*/) const noexcept(noexcept(to_json(j, std::forward<T>(val))))
+ -> decltype(to_json(j, std::forward<T>(val)), void())
+ {
+ return to_json(j, std::forward<T>(val));
+ }
+
+ template<typename BasicJsonType, typename T>
+ void call(BasicJsonType& /*unused*/, T&& /*unused*/, priority_tag<0> /*unused*/) const noexcept
+ {
+ static_assert(sizeof(BasicJsonType) == 0,
+ "could not find to_json() method in T's namespace");
+
+#ifdef _MSC_VER
+ // MSVC does not show a stacktrace for the above assert
+ using decayed = uncvref_t<T>;
+ static_assert(sizeof(typename decayed::force_msvc_stacktrace) == 0,
+ "forcing MSVC stacktrace to show which T we're talking about.");
+#endif
+ }
+
+ public:
+ template<typename BasicJsonType, typename T>
+ void operator()(BasicJsonType& j, T&& val) const
+ noexcept(noexcept(std::declval<to_json_fn>().call(j, std::forward<T>(val), priority_tag<1> {})))
+ {
+ return call(j, std::forward<T>(val), priority_tag<1> {});
+ }
+};
+}
+
+/// namespace to hold default `to_json` function
+namespace
+{
+constexpr const auto& to_json = detail::static_const<detail::to_json_fn>::value;
+}
+}
+
+#endif
diff --git a/src/json.hpp b/src/json.hpp
index e7ce109a..ae7d727e 100644
--- a/src/json.hpp
+++ b/src/json.hpp
@@ -49,7 +49,6 @@ SOFTWARE.
#include <numeric> // accumulate
#include <sstream> // stringstream
#include <utility> // declval, forward, make_pair, move, pair, swap
-#include <valarray> // valarray
#include "json_fwd.hpp"
#include "detail/macro_scope.hpp"
@@ -57,6 +56,7 @@ SOFTWARE.
#include "detail/exceptions.hpp"
#include "detail/value_t.hpp"
#include "detail/conversions/from_json.hpp"
+#include "detail/conversions/to_json.hpp"
/*!
@brief namespace for Niels Lohmann
@@ -67,320 +67,6 @@ namespace nlohmann
{
namespace detail
{
-//////////////////
-// constructors //
-//////////////////
-
-template<value_t> struct external_constructor;
-
-template<>
-struct external_constructor<value_t::boolean>
-{
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, typename BasicJsonType::boolean_t b) noexcept
- {
- j.m_type = value_t::boolean;
- j.m_value = b;
- j.assert_invariant();
- }
-};
-
-template<>
-struct external_constructor<value_t::string>
-{
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, const typename BasicJsonType::string_t& s)
- {
- j.m_type = value_t::string;
- j.m_value = s;
- j.assert_invariant();
- }
-
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, typename BasicJsonType::string_t&& s)
- {
- j.m_type = value_t::string;
- j.m_value = std::move(s);
- j.assert_invariant();
- }
-};
-
-template<>
-struct external_constructor<value_t::number_float>
-{
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, typename BasicJsonType::number_float_t val) noexcept
- {
- j.m_type = value_t::number_float;
- j.m_value = val;
- j.assert_invariant();
- }
-};
-
-template<>
-struct external_constructor<value_t::number_unsigned>
-{
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, typename BasicJsonType::number_unsigned_t val) noexcept
- {
- j.m_type = value_t::number_unsigned;
- j.m_value = val;
- j.assert_invariant();
- }
-};
-
-template<>
-struct external_constructor<value_t::number_integer>
-{
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, typename BasicJsonType::number_integer_t val) noexcept
- {
- j.m_type = value_t::number_integer;
- j.m_value = val;
- j.assert_invariant();
- }
-};
-
-template<>
-struct external_constructor<value_t::array>
-{
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, const typename BasicJsonType::array_t& arr)
- {
- j.m_type = value_t::array;
- j.m_value = arr;
- j.assert_invariant();
- }
-
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
- {
- j.m_type = value_t::array;
- j.m_value = std::move(arr);
- j.assert_invariant();
- }
-
- template<typename BasicJsonType, typename CompatibleArrayType,
- enable_if_t<not std::is_same<CompatibleArrayType, typename BasicJsonType::array_t>::value,
- int> = 0>
- static void construct(BasicJsonType& j, const CompatibleArrayType& arr)
- {
- using std::begin;
- using std::end;
- j.m_type = value_t::array;
- j.m_value.array = j.template create<typename BasicJsonType::array_t>(begin(arr), end(arr));
- j.assert_invariant();
- }
-
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, const std::vector<bool>& arr)
- {
- j.m_type = value_t::array;
- j.m_value = value_t::array;
- j.m_value.array->reserve(arr.size());
- for (const bool x : arr)
- {
- j.m_value.array->push_back(x);
- }
- j.assert_invariant();
- }
-
- template<typename BasicJsonType, typename T,
- enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0>
- static void construct(BasicJsonType& j, const std::valarray<T>& arr)
- {
- j.m_type = value_t::array;
- j.m_value = value_t::array;
- j.m_value.array->resize(arr.size());
- std::copy(std::begin(arr), std::end(arr), j.m_value.array->begin());
- j.assert_invariant();
- }
-};
-
-template<>
-struct external_constructor<value_t::object>
-{
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, const typename BasicJsonType::object_t& obj)
- {
- j.m_type = value_t::object;
- j.m_value = obj;
- j.assert_invariant();
- }
-
- template<typename BasicJsonType>
- static void construct(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
- {
- j.m_type = value_t::object;
- j.m_value = std::move(obj);
- j.assert_invariant();
- }
-
- template<typename BasicJsonType, typename CompatibleObjectType,
- enable_if_t<not std::is_same<CompatibleObjectType, typename BasicJsonType::object_t>::value, int> = 0>
- static void construct(BasicJsonType& j, const CompatibleObjectType& obj)
- {
- using std::begin;
- using std::end;
-
- j.m_type = value_t::object;
- j.m_value.object = j.template create<typename BasicJsonType::object_t>(begin(obj), end(obj));
- j.assert_invariant();
- }
-};
-
-/////////////
-// to_json //
-/////////////
-
-template<typename BasicJsonType, typename T,
- enable_if_t<std::is_same<T, typename BasicJsonType::boolean_t>::value, int> = 0>
-void to_json(BasicJsonType& j, T b) noexcept
-{
- external_constructor<value_t::boolean>::construct(j, b);
-}
-
-template<typename BasicJsonType, typename CompatibleString,
- enable_if_t<std::is_constructible<typename BasicJsonType::string_t, CompatibleString>::value, int> = 0>
-void to_json(BasicJsonType& j, const CompatibleString& s)
-{
- external_constructor<value_t::string>::construct(j, s);
-}
-
-template<typename BasicJsonType>
-void to_json(BasicJsonType& j, typename BasicJsonType::string_t&& s)
-{
- external_constructor<value_t::string>::construct(j, std::move(s));
-}
-
-template<typename BasicJsonType, typename FloatType,
- enable_if_t<std::is_floating_point<FloatType>::value, int> = 0>
-void to_json(BasicJsonType& j, FloatType val) noexcept
-{
- external_constructor<value_t::number_float>::construct(j, static_cast<typename BasicJsonType::number_float_t>(val));
-}
-
-template<typename BasicJsonType, typename CompatibleNumberUnsignedType,
- enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_unsigned_t, CompatibleNumberUnsignedType>::value, int> = 0>
-void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept
-{
- external_constructor<value_t::number_unsigned>::construct(j, static_cast<typename BasicJsonType::number_unsigned_t>(val));
-}
-
-template<typename BasicJsonType, typename CompatibleNumberIntegerType,
- enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_integer_t, CompatibleNumberIntegerType>::value, int> = 0>
-void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept
-{
- external_constructor<value_t::number_integer>::construct(j, static_cast<typename BasicJsonType::number_integer_t>(val));
-}
-
-template<typename BasicJsonType, typename EnumType,
- enable_if_t<std::is_enum<EnumType>::value, int> = 0>
-void to_json(BasicJsonType& j, EnumType e) noexcept
-{
- using underlying_type = typename std::underlying_type<EnumType>::type;
- external_constructor<value_t::number_integer>::construct(j, static_cast<underlying_type>(e));
-}
-
-template<typename BasicJsonType>
-void to_json(BasicJsonType& j, const std::vector<bool>& e)
-{
- external_constructor<value_t::array>::construct(j, e);
-}
-
-template<typename BasicJsonType, typename CompatibleArrayType,
- enable_if_t<is_compatible_array_type<BasicJsonType, CompatibleArrayType>::value or
- std::is_same<typename BasicJsonType::array_t, CompatibleArrayType>::value,
- int> = 0>
-void to_json(BasicJsonType& j, const CompatibleArrayType& arr)
-{
- external_constructor<value_t::array>::construct(j, arr);
-}
-
-template<typename BasicJsonType, typename T,
- enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0>
-void to_json(BasicJsonType& j, std::valarray<T> arr)
-{
- external_constructor<value_t::array>::construct(j, std::move(arr));
-}
-
-template<typename BasicJsonType>
-void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
-{
- external_constructor<value_t::array>::construct(j, std::move(arr));
-}
-
-template<typename BasicJsonType, typename CompatibleObjectType,
- enable_if_t<is_compatible_object_type<BasicJsonType, CompatibleObjectType>::value, int> = 0>
-void to_json(BasicJsonType& j, const CompatibleObjectType& obj)
-{
- external_constructor<value_t::object>::construct(j, obj);
-}
-
-template<typename BasicJsonType>
-void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
-{
- external_constructor<value_t::object>::construct(j, std::move(obj));
-}
-
-template<typename BasicJsonType, typename T, std::size_t N,
- enable_if_t<not std::is_constructible<typename BasicJsonType::string_t, T (&)[N]>::value, int> = 0>
-void to_json(BasicJsonType& j, T (&arr)[N])
-{
- external_constructor<value_t::array>::construct(j, arr);
-}
-
-template<typename BasicJsonType, typename... Args>
-void to_json(BasicJsonType& j, const std::pair<Args...>& p)
-{
- j = {p.first, p.second};
-}
-
-template<typename BasicJsonType, typename Tuple, std::size_t... Idx>
-void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence<Idx...>)
-{
- j = {std::get<Idx>(t)...};
-}
-
-template<typename BasicJsonType, typename... Args>
-void to_json(BasicJsonType& j, const std::tuple<Args...>& t)
-{
- to_json_tuple_impl(j, t, index_sequence_for<Args...> {});
-}
-
-struct to_json_fn
-{
- private:
- template<typename BasicJsonType, typename T>
- auto call(BasicJsonType& j, T&& val, priority_tag<1> /*unused*/) const noexcept(noexcept(to_json(j, std::forward<T>(val))))
- -> decltype(to_json(j, std::forward<T>(val)), void())
- {
- return to_json(j, std::forward<T>(val));
- }
-
- template<typename BasicJsonType, typename T>
- void call(BasicJsonType& /*unused*/, T&& /*unused*/, priority_tag<0> /*unused*/) const noexcept
- {
- static_assert(sizeof(BasicJsonType) == 0,
- "could not find to_json() method in T's namespace");
-
-#ifdef _MSC_VER
- // MSVC does not show a stacktrace for the above assert
- using decayed = uncvref_t<T>;
- static_assert(sizeof(typename decayed::force_msvc_stacktrace) == 0,
- "forcing MSVC stacktrace to show which T we're talking about.");
-#endif
- }
-
- public:
- template<typename BasicJsonType, typename T>
- void operator()(BasicJsonType& j, T&& val) const
- noexcept(noexcept(std::declval<to_json_fn>().call(j, std::forward<T>(val), priority_tag<1> {})))
- {
- return call(j, std::forward<T>(val), priority_tag<1> {});
- }
-};
-
////////////////////
// input adapters //
////////////////////
@@ -5884,12 +5570,6 @@ class json_ref
} // namespace detail
-/// namespace to hold default `to_json` function
-namespace
-{
-constexpr const auto& to_json = detail::static_const<detail::to_json_fn>::value;
-}
-
template<typename, typename>
struct adl_serializer
{