💄 some cleanup
This commit is contained in:
Niels Lohmann
parent
94d9b7bc86
commit
4d3053cd42
2 changed files with 50 additions and 38 deletions
44
src/json.hpp
44
src/json.hpp
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@ -204,14 +204,14 @@ using enable_if_t = typename std::enable_if<B, T>::type;
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template<typename T>
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using uncvref_t = typename std::remove_cv<typename std::remove_reference<T>::type>::type;
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// Taken from http://stackoverflow.com/questions/26936640/how-to-implement-is-enum-class-type-trait
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// taken from http://stackoverflow.com/a/26936864/266378
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template<typename T>
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using is_unscoped_enum =
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std::integral_constant<bool, std::is_convertible<T, int>::value and
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std::is_enum<T>::value>;
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/*
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Implementation of 2 C++17 constructs: conjunction, negation. This is needed
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Implementation of two C++17 constructs: conjunction, negation. This is needed
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to avoid evaluating all the traits in a condition
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For example: not std::is_same<void, T>::value and has_value_type<T>::value
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@ -393,6 +393,7 @@ NLOHMANN_JSON_HAS_HELPER(iterator);
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#undef NLOHMANN_JSON_HAS_HELPER
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template<bool B, class RealType, class CompatibleObjectType>
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struct is_compatible_object_type_impl : std::false_type {};
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@ -468,7 +469,7 @@ struct is_compatible_integer_type
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};
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// This trait checks if JSONSerializer<T>::from_json(json const&, udt&) exists
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// trait checking if JSONSerializer<T>::from_json(json const&, udt&) exists
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template<typename BasicJsonType, typename T>
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struct has_from_json
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{
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@ -530,8 +531,7 @@ void to_json(BasicJsonType& j, typename BasicJsonType::boolean_t b) noexcept
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template<typename BasicJsonType, typename CompatibleString,
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enable_if_t<std::is_constructible<typename BasicJsonType::string_t,
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CompatibleString>::value,
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int> = 0>
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CompatibleString>::value, int> = 0>
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void to_json(BasicJsonType& j, const CompatibleString& s)
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{
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external_constructor<value_t::string>::construct(j, s);
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@ -547,8 +547,7 @@ void to_json(BasicJsonType& j, FloatType val) noexcept
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template <
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typename BasicJsonType, typename CompatibleNumberUnsignedType,
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enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_unsigned_t,
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CompatibleNumberUnsignedType>::value,
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int> = 0 >
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CompatibleNumberUnsignedType>::value, int> = 0 >
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void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept
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{
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external_constructor<value_t::number_unsigned>::construct(j, static_cast<typename BasicJsonType::number_unsigned_t>(val));
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@ -557,8 +556,7 @@ void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept
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template <
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typename BasicJsonType, typename CompatibleNumberIntegerType,
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enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_integer_t,
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CompatibleNumberIntegerType>::value,
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int> = 0 >
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CompatibleNumberIntegerType>::value, int> = 0 >
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void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept
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{
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external_constructor<value_t::number_integer>::construct(j, static_cast<typename BasicJsonType::number_integer_t>(val));
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@ -690,7 +688,6 @@ void from_json(const BasicJsonType& j, typename BasicJsonType::array_t& arr)
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}
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// forward_list doesn't have an insert method
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// TODO find a way to avoid including forward_list
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template<typename BasicJsonType, typename T, typename Allocator>
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void from_json(const BasicJsonType& j, std::forward_list<T, Allocator>& l)
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{
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@ -781,14 +778,15 @@ void from_json(const BasicJsonType& j, CompatibleObjectType& obj)
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using std::begin;
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using std::end;
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// we could avoid the assignment, but this might require a for loop, which
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// might be less efficient than the container constructor for some containers (would it?)
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// might be less efficient than the container constructor for some
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// containers (would it?)
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obj = CompatibleObjectType(begin(*inner_object), end(*inner_object));
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}
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// overload for arithmetic types, not chosen for basic_json template arguments (BooleanType, etc..)
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//
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// note: Is it really necessary to provide explicit overloads for boolean_t etc..
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// in case of a custom BooleanType which is not an arithmetic type?
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// overload for arithmetic types, not chosen for basic_json template arguments
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// (BooleanType, etc..); note: Is it really necessary to provide explicit
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// overloads for boolean_t etc. in case of a custom BooleanType which is not
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// an arithmetic type?
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template<typename BasicJsonType, typename ArithmeticType,
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enable_if_t <
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std::is_arithmetic<ArithmeticType>::value and
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@ -802,21 +800,31 @@ void from_json(const BasicJsonType& j, ArithmeticType& val)
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switch (static_cast<value_t>(j))
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{
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case value_t::number_unsigned:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_unsigned_t*>());
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break;
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}
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case value_t::number_integer:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_integer_t*>());
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break;
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}
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case value_t::number_float:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_float_t*>());
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break;
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}
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case value_t::boolean:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::boolean_t*>());
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break;
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}
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default:
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{
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JSON_THROW(std::domain_error("type must be number, but is " + j.type_name()));
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}
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}
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}
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struct to_json_fn
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{
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@ -3160,8 +3168,7 @@ class basic_json
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detail::enable_if_t <
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not std::is_same<basic_json_t, U>::value and
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detail::has_from_json<basic_json_t, U>::value and
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not detail::has_non_default_from_json<basic_json_t,
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U>::value,
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not detail::has_non_default_from_json<basic_json_t, U>::value,
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int > = 0 >
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U get() const noexcept(noexcept(JSONSerializer<U>::from_json(
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std::declval<const basic_json_t&>(), std::declval<U&>())))
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@ -3196,8 +3203,7 @@ class basic_json
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typename U = detail::uncvref_t<T>,
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detail::enable_if_t<not std::is_same<basic_json_t, U>::value and
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detail::has_non_default_from_json<basic_json_t,
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U>::value,
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int> = 0 >
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U>::value, int> = 0 >
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U get() const noexcept(noexcept(JSONSerializer<T>::from_json(std::declval<const basic_json_t&>())))
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{
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static_assert(not std::is_reference<T>::value, "get cannot be used with reference types, you might want to use get_ref");
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@ -204,14 +204,14 @@ using enable_if_t = typename std::enable_if<B, T>::type;
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template<typename T>
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using uncvref_t = typename std::remove_cv<typename std::remove_reference<T>::type>::type;
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// Taken from http://stackoverflow.com/questions/26936640/how-to-implement-is-enum-class-type-trait
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// taken from http://stackoverflow.com/a/26936864/266378
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template<typename T>
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using is_unscoped_enum =
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std::integral_constant<bool, std::is_convertible<T, int>::value and
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std::is_enum<T>::value>;
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/*
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Implementation of 2 C++17 constructs: conjunction, negation. This is needed
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Implementation of two C++17 constructs: conjunction, negation. This is needed
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to avoid evaluating all the traits in a condition
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For example: not std::is_same<void, T>::value and has_value_type<T>::value
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@ -393,6 +393,7 @@ NLOHMANN_JSON_HAS_HELPER(iterator);
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#undef NLOHMANN_JSON_HAS_HELPER
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template<bool B, class RealType, class CompatibleObjectType>
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struct is_compatible_object_type_impl : std::false_type {};
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@ -468,7 +469,7 @@ struct is_compatible_integer_type
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};
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// This trait checks if JSONSerializer<T>::from_json(json const&, udt&) exists
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// trait checking if JSONSerializer<T>::from_json(json const&, udt&) exists
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template<typename BasicJsonType, typename T>
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struct has_from_json
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{
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@ -530,8 +531,7 @@ void to_json(BasicJsonType& j, typename BasicJsonType::boolean_t b) noexcept
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template<typename BasicJsonType, typename CompatibleString,
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enable_if_t<std::is_constructible<typename BasicJsonType::string_t,
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CompatibleString>::value,
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int> = 0>
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CompatibleString>::value, int> = 0>
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void to_json(BasicJsonType& j, const CompatibleString& s)
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{
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external_constructor<value_t::string>::construct(j, s);
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@ -547,8 +547,7 @@ void to_json(BasicJsonType& j, FloatType val) noexcept
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template <
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typename BasicJsonType, typename CompatibleNumberUnsignedType,
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enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_unsigned_t,
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CompatibleNumberUnsignedType>::value,
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int> = 0 >
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CompatibleNumberUnsignedType>::value, int> = 0 >
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void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept
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{
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external_constructor<value_t::number_unsigned>::construct(j, static_cast<typename BasicJsonType::number_unsigned_t>(val));
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@ -557,8 +556,7 @@ void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept
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template <
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typename BasicJsonType, typename CompatibleNumberIntegerType,
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enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_integer_t,
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CompatibleNumberIntegerType>::value,
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int> = 0 >
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CompatibleNumberIntegerType>::value, int> = 0 >
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void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept
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{
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external_constructor<value_t::number_integer>::construct(j, static_cast<typename BasicJsonType::number_integer_t>(val));
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@ -690,7 +688,6 @@ void from_json(const BasicJsonType& j, typename BasicJsonType::array_t& arr)
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}
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// forward_list doesn't have an insert method
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// TODO find a way to avoid including forward_list
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template<typename BasicJsonType, typename T, typename Allocator>
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void from_json(const BasicJsonType& j, std::forward_list<T, Allocator>& l)
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{
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@ -781,14 +778,15 @@ void from_json(const BasicJsonType& j, CompatibleObjectType& obj)
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using std::begin;
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using std::end;
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// we could avoid the assignment, but this might require a for loop, which
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// might be less efficient than the container constructor for some containers (would it?)
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// might be less efficient than the container constructor for some
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// containers (would it?)
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obj = CompatibleObjectType(begin(*inner_object), end(*inner_object));
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}
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// overload for arithmetic types, not chosen for basic_json template arguments (BooleanType, etc..)
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//
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// note: Is it really necessary to provide explicit overloads for boolean_t etc..
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// in case of a custom BooleanType which is not an arithmetic type?
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// overload for arithmetic types, not chosen for basic_json template arguments
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// (BooleanType, etc..); note: Is it really necessary to provide explicit
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// overloads for boolean_t etc. in case of a custom BooleanType which is not
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// an arithmetic type?
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template<typename BasicJsonType, typename ArithmeticType,
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enable_if_t <
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std::is_arithmetic<ArithmeticType>::value and
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@ -802,21 +800,31 @@ void from_json(const BasicJsonType& j, ArithmeticType& val)
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switch (static_cast<value_t>(j))
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{
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case value_t::number_unsigned:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_unsigned_t*>());
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break;
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}
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case value_t::number_integer:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_integer_t*>());
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break;
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}
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case value_t::number_float:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_float_t*>());
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break;
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}
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case value_t::boolean:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::boolean_t*>());
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break;
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}
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default:
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{
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JSON_THROW(std::domain_error("type must be number, but is " + j.type_name()));
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}
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}
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}
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struct to_json_fn
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{
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@ -3160,8 +3168,7 @@ class basic_json
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detail::enable_if_t <
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not std::is_same<basic_json_t, U>::value and
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detail::has_from_json<basic_json_t, U>::value and
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not detail::has_non_default_from_json<basic_json_t,
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U>::value,
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not detail::has_non_default_from_json<basic_json_t, U>::value,
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int > = 0 >
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U get() const noexcept(noexcept(JSONSerializer<U>::from_json(
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std::declval<const basic_json_t&>(), std::declval<U&>())))
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@ -3196,8 +3203,7 @@ class basic_json
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typename U = detail::uncvref_t<T>,
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detail::enable_if_t<not std::is_same<basic_json_t, U>::value and
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detail::has_non_default_from_json<basic_json_t,
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U>::value,
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int> = 0 >
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U>::value, int> = 0 >
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U get() const noexcept(noexcept(JSONSerializer<T>::from_json(std::declval<const basic_json_t&>())))
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{
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static_assert(not std::is_reference<T>::value, "get cannot be used with reference types, you might want to use get_ref");
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