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🔨 cleanup after #663
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@nlohmann
nlohmann committed Jul 30, 2017
1 parent 3d67ec4 commit 850d856
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6 changes: 4 additions & 2 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -849,7 +849,9 @@ I deeply appreciate the help of the following people.
- [Steffen](https://github.com/koemeet) fixed a potential issue with MSVC and `std::min`.
- [Mike Tzou](https://github.com/Chocobo1) fixed some typos.
- [amrcode](https://github.com/amrcode) noted a missleading documentation about comparison of floats.
- [Oleg Endo](https://github.com/olegendo) reduced the memory consumption by replacing `<iostream>` with `<iosfwd>`
- [Oleg Endo](https://github.com/olegendo) reduced the memory consumption by replacing `<iostream>` with `<iosfwd>`.
- [dan-42](https://github.com/dan-42) cleaned up the CMake files to simplify including/reusing of the library.
- [Nikita Ofitserov](https://github.com/himikof) allowed for moving values from initializer lists.
Thanks a lot for helping out! Please [let me know](mailto:[email protected]) if I forgot someone.
Expand Down Expand Up @@ -912,7 +914,7 @@ $ make json_unit -Ctest
$ ./test/json_unit "*"
===============================================================================
All tests passed (13391115 assertions in 49 test cases)
All tests passed (14504461 assertions in 48 test cases)
```

Alternatively, you can use [CMake](https://cmake.org) and run
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83 changes: 40 additions & 43 deletions src/json.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -577,7 +577,7 @@ struct external_constructor<value_t::string>
}

template<typename BasicJsonType>
static void construct(BasicJsonType& j, typename BasicJsonType::string_t&& s)
static void construct(BasicJsonType& j, typename BasicJsonType::string_t&& s)
{
j.m_type = value_t::string;
j.m_value = std::move(s);
Expand Down Expand Up @@ -633,7 +633,7 @@ struct external_constructor<value_t::array>
}

template<typename BasicJsonType>
static void construct(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
static void construct(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
{
j.m_type = value_t::array;
j.m_value = std::move(arr);
Expand Down Expand Up @@ -679,7 +679,7 @@ struct external_constructor<value_t::object>
}

template<typename BasicJsonType>
static void construct(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
static void construct(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
{
j.m_type = value_t::object;
j.m_value = std::move(obj);
Expand Down Expand Up @@ -875,7 +875,7 @@ void to_json(BasicJsonType& j, const CompatibleString& s)
}

template <typename BasicJsonType>
void to_json(BasicJsonType& j, typename BasicJsonType::string_t&& s)
void to_json(BasicJsonType& j, typename BasicJsonType::string_t&& s)
{
external_constructor<value_t::string>::construct(j, std::move(s));
}
Expand Down Expand Up @@ -931,7 +931,7 @@ void to_json(BasicJsonType& j, const CompatibleArrayType& arr)
}

template <typename BasicJsonType>
void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
{
external_constructor<value_t::array>::construct(j, std::move(arr));
}
Expand All @@ -946,7 +946,7 @@ void to_json(BasicJsonType& j, const CompatibleObjectType& obj)
}

template <typename BasicJsonType>
void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
{
external_constructor<value_t::object>::construct(j, std::move(obj));
}
Expand Down Expand Up @@ -6843,63 +6843,61 @@ class serializer
};

template<typename BasicJsonType>
struct json_ref
class json_ref
{
typedef BasicJsonType value_type;
public:
using value_type = BasicJsonType;

json_ref(value_type&& value)
: owned_value_(std::move(value))
, is_rvalue_(true)
{
value_ref_ = &owned_value_;
}
json_ref(value_type&& value)
: owned_value(std::move(value)),
value_ref(&owned_value),
is_rvalue(true)
{}

json_ref(const value_type& value)
: value_ref_(const_cast<value_type*>(&value))
, is_rvalue_(false)
: value_ref(const_cast<value_type*>(&value)),
is_rvalue(false)
{}

json_ref(std::initializer_list<json_ref> init)
: owned_value_(init)
, is_rvalue_(true)
{
value_ref_ = &owned_value_;
}
: owned_value(init),
value_ref(&owned_value),
is_rvalue(true)
{}

template <class... Args>
json_ref(Args... args)
: owned_value_(std::forward<Args>(args)...)
, is_rvalue_(true)
{
value_ref_ = &owned_value_;
}
: owned_value(std::forward<Args>(args)...),
value_ref(&owned_value),
is_rvalue(true)
{}

value_type moved_or_copied() const
{
if (is_rvalue_)
if (is_rvalue)
{
return std::move(*value_ref_);
return std::move(*value_ref);
}
else
{
return *value_ref_;
return *value_ref;
}
}

value_type const& operator*() const
{
return *static_cast<value_type const*>(value_ref_);
return *static_cast<value_type const*>(value_ref);
}

value_type const* operator->() const
{
return static_cast<value_type const*>(value_ref_);
return static_cast<value_type const*>(value_ref);
}

private:
value_type * value_ref_;
mutable value_type owned_value_;
bool is_rvalue_;
mutable value_type owned_value;
value_type* value_ref = nullptr;
const bool is_rvalue;
};

} // namespace detail
Expand Down Expand Up @@ -8130,7 +8128,7 @@ class basic_json
}

/// constructor for rvalue strings
json_value(string_t&& value)
json_value(string_t&& value)
{
string = create<string_t>(std::move(value));
}
Expand All @@ -8142,7 +8140,7 @@ class basic_json
}

/// constructor for rvalue objects
json_value(object_t&& value)
json_value(object_t&& value)
{
object = create<object_t>(std::move(value));
}
Expand All @@ -8154,7 +8152,7 @@ class basic_json
}

/// constructor for rvalue arrays
json_value(array_t&& value)
json_value(array_t&& value)
{
array = create<array_t>(std::move(value));
}
Expand Down Expand Up @@ -8510,7 +8508,7 @@ class basic_json

std::for_each(init.begin(), init.end(), [this](const detail::json_ref<basic_json>& element_ref)
{
basic_json element = element_ref.moved_or_copied();
auto element = element_ref.moved_or_copied();
m_value.object->emplace(
std::move(*((*element.m_value.array)[0].m_value.string)),
std::move((*element.m_value.array)[1]));
Expand Down Expand Up @@ -8775,8 +8773,7 @@ class basic_json

basic_json(const detail::json_ref<basic_json>& ref)
: basic_json(ref.moved_or_copied())
{
}
{}

/*!
@brief copy constructor
Expand Down Expand Up @@ -11578,7 +11575,7 @@ class basic_json
@brief add an object to an array
@copydoc push_back(basic_json&&)
*/
reference operator+=(basic_json && val)
reference operator+=(basic_json&& val)
{
push_back(std::move(val));
return *this;
Expand Down Expand Up @@ -11697,9 +11694,9 @@ class basic_json
{
if (is_object() and init.size() == 2 and (*init.begin())->is_string())
{
basic_json&& key = init.begin()->moved_or_copied();
basic_json&& key = init.begin()->moved_or_copied();
push_back(typename object_t::value_type(
std::move(key.get_ref<string_t&>()), (init.begin() + 1)->moved_or_copied()));
std::move(key.get_ref<string_t&>()), (init.begin() + 1)->moved_or_copied()));
}
else
{
Expand Down

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