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json
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cleaned up code 

- removed unnecessary assertions
- simplified simple if/return patterns
pull/300/head
Niels 2016-07-27 21:29:55 +02:00
parent bdaade91f5
commit a7f8c47f68
3 changed files with 121 additions and 350 deletions
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3
ChangeLog.md
View File

@ -5,6 +5,9 @@ All notable changes to this project will be documented in this file. This projec
[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.1...HEAD)
- value\(\) does not work with \_json\_pointer types [\#283](https://github.com/nlohmann/json/issues/283)
- Easy serialization of classes [\#280](https://github.com/nlohmann/json/issues/280)
- Build error for std::int64 [\#282](https://github.com/nlohmann/json/issues/282)
- hexify\(\) function emits conversion warning [\#270](https://github.com/nlohmann/json/issues/270)

234
src/json.hpp
View File

@ -621,8 +621,8 @@ class basic_json
> that implementations will agree exactly on their numeric values.
As this range is a subrange (when considered in conjunction with the
number_integer_t type) of the exactly supported range [0, UINT64_MAX], this
class's integer type is interoperable.
number_integer_t type) of the exactly supported range [0, UINT64_MAX],
this class's integer type is interoperable.
#### Storage
@ -760,6 +760,7 @@ class basic_json
};
std::unique_ptr<T, decltype(deleter)> object(alloc.allocate(1), deleter);
alloc.construct(object.get(), std::forward<Args>(args)...);
assert(object.get() != nullptr);
return object.release();
}
@ -1415,8 +1416,8 @@ class basic_json
Create an unsigned integer number JSON value with a given content.
@tparam T helper type to compare number_unsigned_t and unsigned int
(not visible in) the interface.
@tparam T helper type to compare number_unsigned_t and unsigned int (not
visible in) the interface.
@param[in] val an integer to create a JSON number from
@ -1521,8 +1522,8 @@ class basic_json
disallows NaN values:
> Numeric values that cannot be represented in the grammar below (such as
> Infinity and NaN) are not permitted.
In case the parameter @a val is not a number, a JSON null value is
created instead.
In case the parameter @a val is not a number, a JSON null value is created
instead.
@complexity Constant.
@ -1647,8 +1648,6 @@ class basic_json
m_type = value_t::object;
m_value = value_t::object;
assert(m_value.object != nullptr);
std::for_each(init.begin(), init.end(), [this](const basic_json & element)
{
m_value.object->emplace(*(element[0].m_value.string), element[1]);
@ -1806,7 +1805,8 @@ class basic_json
std::is_same<InputIT, typename basic_json_t::const_iterator>::value
, int>::type
= 0>
basic_json(InputIT first, InputIT last) : m_type(first.m_object->m_type)
basic_json(InputIT first, InputIT last)
: m_type(first.m_object->m_type)
{
// make sure iterator fits the current value
if (first.m_object != last.m_object)
@ -1840,35 +1840,30 @@ class basic_json
{
case value_t::number_integer:
{
assert(first.m_object != nullptr);
m_value.number_integer = first.m_object->m_value.number_integer;
break;
}
case value_t::number_unsigned:
{
assert(first.m_object != nullptr);
m_value.number_unsigned = first.m_object->m_value.number_unsigned;
break;
}
case value_t::number_float:
{
assert(first.m_object != nullptr);
m_value.number_float = first.m_object->m_value.number_float;
break;
}
case value_t::boolean:
{
assert(first.m_object != nullptr);
m_value.boolean = first.m_object->m_value.boolean;
break;
}
case value_t::string:
{
assert(first.m_object != nullptr);
m_value = *first.m_object->m_value.string;
break;
}
@ -1887,7 +1882,6 @@ class basic_json
default:
{
assert(first.m_object != nullptr);
throw std::domain_error("cannot use construct with iterators from " + first.m_object->type_name());
}
}
@ -1951,21 +1945,18 @@ class basic_json
{
case value_t::object:
{
assert(other.m_value.object != nullptr);
m_value = *other.m_value.object;
break;
}
case value_t::array:
{
assert(other.m_value.array != nullptr);
m_value = *other.m_value.array;
break;
}
case value_t::string:
{
assert(other.m_value.string != nullptr);
m_value = *other.m_value.string;
break;
}
@ -2020,8 +2011,7 @@ class basic_json
@since version 1.0.0
*/
basic_json(basic_json&& other) noexcept
: m_type(std::move(other.m_type)),
m_value(std::move(other.m_value))
: m_type(std::move(other.m_type)), m_value(std::move(other.m_value))
{
// invalidate payload
other.m_type = value_t::null;
@ -2543,29 +2533,17 @@ class basic_json
, int>::type = 0>
T get_impl(T*) const
{
if (is_object())
{
assert(m_value.object != nullptr);
return T(m_value.object->begin(), m_value.object->end());
}
else
{
throw std::domain_error("type must be object, but is " + type_name());
}
return is_object()
? T(m_value.object->begin(), m_value.object->end())
: throw std::domain_error("type must be object, but is " + type_name());
}
/// get an object (explicit)
object_t get_impl(object_t*) const
{
if (is_object())
{
assert(m_value.object != nullptr);
return *(m_value.object);
}
else
{
throw std::domain_error("type must be object, but is " + type_name());
}
return is_object()
? *(m_value.object)
: throw std::domain_error("type must be object, but is " + type_name());
}
/// get an array (explicit)
@ -2582,7 +2560,6 @@ class basic_json
if (is_array())
{
T to_vector;
assert(m_value.array != nullptr);
std::transform(m_value.array->begin(), m_value.array->end(),
std::inserter(to_vector, to_vector.end()), [](basic_json i)
{
@ -2607,7 +2584,6 @@ class basic_json
if (is_array())
{
std::vector<T> to_vector;
assert(m_value.array != nullptr);
to_vector.reserve(m_value.array->size());
std::transform(m_value.array->begin(), m_value.array->end(),
std::inserter(to_vector, to_vector.end()), [](basic_json i)
@ -2630,29 +2606,17 @@ class basic_json
, int>::type = 0>
T get_impl(T*) const
{
if (is_array())
{
assert(m_value.array != nullptr);
return T(m_value.array->begin(), m_value.array->end());
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
return is_array()
? T(m_value.array->begin(), m_value.array->end())
: throw std::domain_error("type must be array, but is " + type_name());
}
/// get an array (explicit)
array_t get_impl(array_t*) const
{
if (is_array())
{
assert(m_value.array != nullptr);
return *(m_value.array);
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
return is_array()
? *(m_value.array)
: throw std::domain_error("type must be array, but is " + type_name());
}
/// get a string (explicit)
@ -2662,15 +2626,9 @@ class basic_json
, int>::type = 0>
T get_impl(T*) const
{
if (is_string())
{
assert(m_value.string != nullptr);
return *m_value.string;
}
else
{
throw std::domain_error("type must be string, but is " + type_name());
}
return is_string()
? *m_value.string
: throw std::domain_error("type must be string, but is " + type_name());
}
/// get a number (explicit)
@ -3140,7 +3098,6 @@ class basic_json
{
try
{
assert(m_value.array != nullptr);
return m_value.array->at(idx);
}
catch (std::out_of_range&)
@ -3184,7 +3141,6 @@ class basic_json
{
try
{
assert(m_value.array != nullptr);
return m_value.array->at(idx);
}
catch (std::out_of_range&)
@ -3232,7 +3188,6 @@ class basic_json
{
try
{
assert(m_value.object != nullptr);
return m_value.object->at(key);
}
catch (std::out_of_range&)
@ -3280,7 +3235,6 @@ class basic_json
{
try
{
assert(m_value.object != nullptr);
return m_value.object->at(key);
}
catch (std::out_of_range&)
@ -3333,7 +3287,6 @@ class basic_json
if (is_array())
{
// fill up array with null values if given idx is outside range
assert(m_value.array != nullptr);
if (idx >= m_value.array->size())
{
m_value.array->insert(m_value.array->end(),
@ -3371,15 +3324,9 @@ class basic_json
const_reference operator[](size_type idx) const
{
// const operator[] only works for arrays
if (is_array())
{
assert(m_value.array != nullptr);
return m_value.array->operator[](idx);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return is_array()
? m_value.array->operator[](idx)
: throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3419,15 +3366,9 @@ class basic_json
}
// operator[] only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
return m_value.object->operator[](key);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return is_object()
? m_value.object->operator[](key)
: throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3460,16 +3401,9 @@ class basic_json
const_reference operator[](const typename object_t::key_type& key) const
{
// const operator[] only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second;
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return is_object()
? m_value.object->find(key)->second
: throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3578,15 +3512,9 @@ class basic_json
}
// at only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
return m_value.object->operator[](key);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return is_object()
? m_value.object->operator[](key)
: throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3620,16 +3548,9 @@ class basic_json
const_reference operator[](T* key) const
{
// at only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second;
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return is_object()
? m_value.object->find(key)->second
: throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3959,14 +3880,12 @@ class basic_json
case value_t::object:
{
assert(m_value.object != nullptr);
result.m_it.object_iterator = m_value.object->erase(pos.m_it.object_iterator);
break;
}
case value_t::array:
{
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->erase(pos.m_it.array_iterator);
break;
}
@ -4067,7 +3986,6 @@ class basic_json
case value_t::object:
{
assert(m_value.object != nullptr);
result.m_it.object_iterator = m_value.object->erase(first.m_it.object_iterator,
last.m_it.object_iterator);
break;
@ -4075,7 +3993,6 @@ class basic_json
case value_t::array:
{
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->erase(first.m_it.array_iterator,
last.m_it.array_iterator);
break;
@ -4122,15 +4039,9 @@ class basic_json
size_type erase(const typename object_t::key_type& key)
{
// this erase only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
return m_value.object->erase(key);
}
else
{
throw std::domain_error("cannot use erase() with " + type_name());
}
return is_object()
? m_value.object->erase(key)
: throw std::domain_error("cannot use erase() with " + type_name());
}
/*!
@ -4167,7 +4078,6 @@ class basic_json
throw std::out_of_range("array index " + std::to_string(idx) + " is out of range");
}
assert(m_value.array != nullptr);
m_value.array->erase(m_value.array->begin() + static_cast<difference_type>(idx));
}
else
@ -4210,7 +4120,6 @@ class basic_json
if (is_object())
{
assert(m_value.object != nullptr);
result.m_it.object_iterator = m_value.object->find(key);
}
@ -4227,7 +4136,6 @@ class basic_json
if (is_object())
{
assert(m_value.object != nullptr);
result.m_it.object_iterator = m_value.object->find(key);
}
@ -4255,7 +4163,6 @@ class basic_json
size_type count(typename object_t::key_type key) const
{
// return 0 for all nonobject types
assert(not is_object() or m_value.object != nullptr);
return is_object() ? m_value.object->count(key) : 0;
}
@ -4597,6 +4504,10 @@ class basic_json
object | result of function `object_t::empty()`
array | result of function `array_t::empty()`
@note This function does not return whether a string stored as JSON value
is empty - it returns whether the JSON container itself is empty which is
false in the case of a string.
@complexity Constant, as long as @ref array_t and @ref object_t satisfy
the Container concept; that is, their `empty()` functions have constant
complexity.
@ -4626,13 +4537,13 @@ class basic_json
case value_t::array:
{
assert(m_value.array != nullptr);
// delegate call to array_t::empty()
return m_value.array->empty();
}
case value_t::object:
{
assert(m_value.object != nullptr);
// delegate call to object_t::empty()
return m_value.object->empty();
}
@ -4660,6 +4571,10 @@ class basic_json
object | result of function object_t::size()
array | result of function array_t::size()
@note This function does not return the length of a string stored as JSON
value - it returns the number of elements in the JSON value which is 1 in
the case of a string.
@complexity Constant, as long as @ref array_t and @ref object_t satisfy
the Container concept; that is, their size() functions have constant
complexity.
@ -4690,13 +4605,13 @@ class basic_json
case value_t::array:
{
assert(m_value.array != nullptr);
// delegate call to array_t::size()
return m_value.array->size();
}
case value_t::object:
{
assert(m_value.object != nullptr);
// delegate call to object_t::size()
return m_value.object->size();
}
@ -4750,13 +4665,13 @@ class basic_json
{
case value_t::array:
{
assert(m_value.array != nullptr);
// delegate call to array_t::max_size()
return m_value.array->max_size();
}
case value_t::object:
{
assert(m_value.object != nullptr);
// delegate call to object_t::max_size()
return m_value.object->max_size();
}
@ -4833,21 +4748,18 @@ class basic_json
case value_t::string:
{
assert(m_value.string != nullptr);
m_value.string->clear();
break;
}
case value_t::array:
{
assert(m_value.array != nullptr);
m_value.array->clear();
break;
}
case value_t::object:
{
assert(m_value.object != nullptr);
m_value.object->clear();
break;
}
@ -4895,7 +4807,6 @@ class basic_json
}
// add element to array (move semantics)
assert(m_value.array != nullptr);
m_value.array->push_back(std::move(val));
// invalidate object
val.m_type = value_t::null;
@ -4931,7 +4842,6 @@ class basic_json
}
// add element to array
assert(m_value.array != nullptr);
m_value.array->push_back(val);
}
@ -4981,7 +4891,6 @@ class basic_json
}
// add element to array
assert(m_value.object != nullptr);
m_value.object->insert(val);
}
@ -5078,7 +4987,6 @@ class basic_json
// insert to array and return iterator
iterator result(this);
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, val);
return result;
}
@ -5134,7 +5042,6 @@ class basic_json
// insert to array and return iterator
iterator result(this);
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val);
return result;
}
@ -5201,7 +5108,6 @@ class basic_json
// insert to array and return iterator
iterator result(this);
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->insert(
pos.m_it.array_iterator,
first.m_it.array_iterator,
@ -5249,7 +5155,6 @@ class basic_json
// insert to array and return iterator
iterator result(this);
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, ilist);
return result;
}
@ -5307,7 +5212,6 @@ class basic_json
// swap only works for arrays
if (is_array())
{
assert(m_value.array != nullptr);
std::swap(*(m_value.array), other);
}
else
@ -5341,7 +5245,6 @@ class basic_json
// swap only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
std::swap(*(m_value.object), other);
}
else
@ -5375,7 +5278,6 @@ class basic_json
// swap only works for strings
if (is_string())
{
assert(m_value.string != nullptr);
std::swap(*(m_value.string), other);
}
else
@ -5462,14 +5364,10 @@ class basic_json
{
case value_t::array:
{
assert(lhs.m_value.array != nullptr);
assert(rhs.m_value.array != nullptr);
return *lhs.m_value.array == *rhs.m_value.array;
}
case value_t::object:
{
assert(lhs.m_value.object != nullptr);
assert(rhs.m_value.object != nullptr);
return *lhs.m_value.object == *rhs.m_value.object;
}
case value_t::null:
@ -5478,8 +5376,6 @@ class basic_json
}
case value_t::string:
{
assert(lhs.m_value.string != nullptr);
assert(rhs.m_value.string != nullptr);
return *lhs.m_value.string == *rhs.m_value.string;
}
case value_t::boolean:
@ -5652,14 +5548,10 @@ class basic_json
{
case value_t::array:
{
assert(lhs.m_value.array != nullptr);
assert(rhs.m_value.array != nullptr);
return *lhs.m_value.array < *rhs.m_value.array;
}
case value_t::object:
{
assert(lhs.m_value.object != nullptr);
assert(rhs.m_value.object != nullptr);
return *lhs.m_value.object < *rhs.m_value.object;
}
case value_t::null:
@ -5668,8 +5560,6 @@ class basic_json
}
case value_t::string:
{
assert(lhs.m_value.string != nullptr);
assert(rhs.m_value.string != nullptr);
return *lhs.m_value.string < *rhs.m_value.string;
}
case value_t::boolean:
@ -5844,14 +5734,14 @@ class basic_json
// string->float->string, string->double->string or string->long
// double->string; to be safe, we read this value from
// std::numeric_limits<number_float_t>::digits10
const auto old_preicison = o.precision(std::numeric_limits<double>::digits10);
const auto old_precision = o.precision(std::numeric_limits<double>::digits10);
// do the actual serialization
j.dump(o, pretty_print, static_cast<unsigned int>(indentation));
// reset locale and precision
o.imbue(old_locale);
o.precision(old_preicison);
o.precision(old_precision);
return o;
}
@ -6201,8 +6091,6 @@ class basic_json
{
case value_t::object:
{
assert(m_value.object != nullptr);
if (m_value.object->empty())
{
o << "{}";
@ -6243,8 +6131,6 @@ class basic_json
case value_t::array:
{
assert(m_value.array != nullptr);
if (m_value.array->empty())
{
o << "[]";
@ -6283,7 +6169,6 @@ class basic_json
case value_t::string:
{
assert(m_value.string != nullptr);
o << string_t("\"") << escape_string(*m_value.string) << "\"";
return;
}
@ -9522,7 +9407,6 @@ basic_json_parser_63:
basic_json result;
// iterate the JSON object values
assert(value.m_value.object != nullptr);
for (const auto& element : *value.m_value.object)
{
if (not element.second.is_primitive())

234
src/json.hpp.re2c
View File

@ -621,8 +621,8 @@ class basic_json
> that implementations will agree exactly on their numeric values.
As this range is a subrange (when considered in conjunction with the
number_integer_t type) of the exactly supported range [0, UINT64_MAX], this
class's integer type is interoperable.
number_integer_t type) of the exactly supported range [0, UINT64_MAX],
this class's integer type is interoperable.
#### Storage
@ -760,6 +760,7 @@ class basic_json
};
std::unique_ptr<T, decltype(deleter)> object(alloc.allocate(1), deleter);
alloc.construct(object.get(), std::forward<Args>(args)...);
assert(object.get() != nullptr);
return object.release();
}
@ -1415,8 +1416,8 @@ class basic_json
Create an unsigned integer number JSON value with a given content.
@tparam T helper type to compare number_unsigned_t and unsigned int
(not visible in) the interface.
@tparam T helper type to compare number_unsigned_t and unsigned int (not
visible in) the interface.
@param[in] val an integer to create a JSON number from
@ -1521,8 +1522,8 @@ class basic_json
disallows NaN values:
> Numeric values that cannot be represented in the grammar below (such as
> Infinity and NaN) are not permitted.
In case the parameter @a val is not a number, a JSON null value is
created instead.
In case the parameter @a val is not a number, a JSON null value is created
instead.
@complexity Constant.
@ -1647,8 +1648,6 @@ class basic_json
m_type = value_t::object;
m_value = value_t::object;
assert(m_value.object != nullptr);
std::for_each(init.begin(), init.end(), [this](const basic_json & element)
{
m_value.object->emplace(*(element[0].m_value.string), element[1]);
@ -1806,7 +1805,8 @@ class basic_json
std::is_same<InputIT, typename basic_json_t::const_iterator>::value
, int>::type
= 0>
basic_json(InputIT first, InputIT last) : m_type(first.m_object->m_type)
basic_json(InputIT first, InputIT last)
: m_type(first.m_object->m_type)
{
// make sure iterator fits the current value
if (first.m_object != last.m_object)
@ -1840,35 +1840,30 @@ class basic_json
{
case value_t::number_integer:
{
assert(first.m_object != nullptr);
m_value.number_integer = first.m_object->m_value.number_integer;
break;
}
case value_t::number_unsigned:
{
assert(first.m_object != nullptr);
m_value.number_unsigned = first.m_object->m_value.number_unsigned;
break;
}
case value_t::number_float:
{
assert(first.m_object != nullptr);
m_value.number_float = first.m_object->m_value.number_float;
break;
}
case value_t::boolean:
{
assert(first.m_object != nullptr);
m_value.boolean = first.m_object->m_value.boolean;
break;
}
case value_t::string:
{
assert(first.m_object != nullptr);
m_value = *first.m_object->m_value.string;
break;
}
@ -1887,7 +1882,6 @@ class basic_json
default:
{
assert(first.m_object != nullptr);
throw std::domain_error("cannot use construct with iterators from " + first.m_object->type_name());
}
}
@ -1951,21 +1945,18 @@ class basic_json
{
case value_t::object:
{
assert(other.m_value.object != nullptr);
m_value = *other.m_value.object;
break;
}
case value_t::array:
{
assert(other.m_value.array != nullptr);
m_value = *other.m_value.array;
break;
}
case value_t::string:
{
assert(other.m_value.string != nullptr);
m_value = *other.m_value.string;
break;
}
@ -2020,8 +2011,7 @@ class basic_json
@since version 1.0.0
*/
basic_json(basic_json&& other) noexcept
: m_type(std::move(other.m_type)),
m_value(std::move(other.m_value))
: m_type(std::move(other.m_type)), m_value(std::move(other.m_value))
{
// invalidate payload
other.m_type = value_t::null;
@ -2543,29 +2533,17 @@ class basic_json
, int>::type = 0>
T get_impl(T*) const
{
if (is_object())
{
assert(m_value.object != nullptr);
return T(m_value.object->begin(), m_value.object->end());
}
else
{
throw std::domain_error("type must be object, but is " + type_name());
}
return is_object()
? T(m_value.object->begin(), m_value.object->end())
: throw std::domain_error("type must be object, but is " + type_name());
}
/// get an object (explicit)
object_t get_impl(object_t*) const
{
if (is_object())
{
assert(m_value.object != nullptr);
return *(m_value.object);
}
else
{
throw std::domain_error("type must be object, but is " + type_name());
}
return is_object()
? *(m_value.object)
: throw std::domain_error("type must be object, but is " + type_name());
}
/// get an array (explicit)
@ -2582,7 +2560,6 @@ class basic_json
if (is_array())
{
T to_vector;
assert(m_value.array != nullptr);
std::transform(m_value.array->begin(), m_value.array->end(),
std::inserter(to_vector, to_vector.end()), [](basic_json i)
{
@ -2607,7 +2584,6 @@ class basic_json
if (is_array())
{
std::vector<T> to_vector;
assert(m_value.array != nullptr);
to_vector.reserve(m_value.array->size());
std::transform(m_value.array->begin(), m_value.array->end(),
std::inserter(to_vector, to_vector.end()), [](basic_json i)
@ -2630,29 +2606,17 @@ class basic_json
, int>::type = 0>
T get_impl(T*) const
{
if (is_array())
{
assert(m_value.array != nullptr);
return T(m_value.array->begin(), m_value.array->end());
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
return is_array()
? T(m_value.array->begin(), m_value.array->end())
: throw std::domain_error("type must be array, but is " + type_name());
}
/// get an array (explicit)
array_t get_impl(array_t*) const
{
if (is_array())
{
assert(m_value.array != nullptr);
return *(m_value.array);
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
return is_array()
? *(m_value.array)
: throw std::domain_error("type must be array, but is " + type_name());
}
/// get a string (explicit)
@ -2662,15 +2626,9 @@ class basic_json
, int>::type = 0>
T get_impl(T*) const
{
if (is_string())
{
assert(m_value.string != nullptr);
return *m_value.string;
}
else
{
throw std::domain_error("type must be string, but is " + type_name());
}
return is_string()
? *m_value.string
: throw std::domain_error("type must be string, but is " + type_name());
}
/// get a number (explicit)
@ -3140,7 +3098,6 @@ class basic_json
{
try
{
assert(m_value.array != nullptr);
return m_value.array->at(idx);
}
catch (std::out_of_range&)
@ -3184,7 +3141,6 @@ class basic_json
{
try
{
assert(m_value.array != nullptr);
return m_value.array->at(idx);
}
catch (std::out_of_range&)
@ -3232,7 +3188,6 @@ class basic_json
{
try
{
assert(m_value.object != nullptr);
return m_value.object->at(key);
}
catch (std::out_of_range&)
@ -3280,7 +3235,6 @@ class basic_json
{
try
{
assert(m_value.object != nullptr);
return m_value.object->at(key);
}
catch (std::out_of_range&)
@ -3333,7 +3287,6 @@ class basic_json
if (is_array())
{
// fill up array with null values if given idx is outside range
assert(m_value.array != nullptr);
if (idx >= m_value.array->size())
{
m_value.array->insert(m_value.array->end(),
@ -3371,15 +3324,9 @@ class basic_json
const_reference operator[](size_type idx) const
{
// const operator[] only works for arrays
if (is_array())
{
assert(m_value.array != nullptr);
return m_value.array->operator[](idx);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return is_array()
? m_value.array->operator[](idx)
: throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3419,15 +3366,9 @@ class basic_json
}
// operator[] only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
return m_value.object->operator[](key);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return is_object()
? m_value.object->operator[](key)
: throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3460,16 +3401,9 @@ class basic_json
const_reference operator[](const typename object_t::key_type& key) const
{
// const operator[] only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second;
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return is_object()
? m_value.object->find(key)->second
: throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3578,15 +3512,9 @@ class basic_json
}
// at only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
return m_value.object->operator[](key);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return is_object()
? m_value.object->operator[](key)
: throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3620,16 +3548,9 @@ class basic_json
const_reference operator[](T* key) const
{
// at only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second;
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return is_object()
? m_value.object->find(key)->second
: throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3959,14 +3880,12 @@ class basic_json
case value_t::object:
{
assert(m_value.object != nullptr);
result.m_it.object_iterator = m_value.object->erase(pos.m_it.object_iterator);
break;
}
case value_t::array:
{
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->erase(pos.m_it.array_iterator);
break;
}
@ -4067,7 +3986,6 @@ class basic_json
case value_t::object:
{
assert(m_value.object != nullptr);
result.m_it.object_iterator = m_value.object->erase(first.m_it.object_iterator,
last.m_it.object_iterator);
break;
@ -4075,7 +3993,6 @@ class basic_json
case value_t::array:
{
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->erase(first.m_it.array_iterator,
last.m_it.array_iterator);
break;
@ -4122,15 +4039,9 @@ class basic_json
size_type erase(const typename object_t::key_type& key)
{
// this erase only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
return m_value.object->erase(key);
}
else
{
throw std::domain_error("cannot use erase() with " + type_name());
}
return is_object()
? m_value.object->erase(key)
: throw std::domain_error("cannot use erase() with " + type_name());
}
/*!
@ -4167,7 +4078,6 @@ class basic_json
throw std::out_of_range("array index " + std::to_string(idx) + " is out of range");
}
assert(m_value.array != nullptr);
m_value.array->erase(m_value.array->begin() + static_cast<difference_type>(idx));
}
else
@ -4210,7 +4120,6 @@ class basic_json
if (is_object())
{
assert(m_value.object != nullptr);
result.m_it.object_iterator = m_value.object->find(key);
}
@ -4227,7 +4136,6 @@ class basic_json
if (is_object())
{
assert(m_value.object != nullptr);
result.m_it.object_iterator = m_value.object->find(key);
}
@ -4255,7 +4163,6 @@ class basic_json
size_type count(typename object_t::key_type key) const
{
// return 0 for all nonobject types
assert(not is_object() or m_value.object != nullptr);
return is_object() ? m_value.object->count(key) : 0;
}
@ -4597,6 +4504,10 @@ class basic_json
object | result of function `object_t::empty()`
array | result of function `array_t::empty()`
@note This function does not return whether a string stored as JSON value
is empty - it returns whether the JSON container itself is empty which is
false in the case of a string.
@complexity Constant, as long as @ref array_t and @ref object_t satisfy
the Container concept; that is, their `empty()` functions have constant
complexity.
@ -4626,13 +4537,13 @@ class basic_json
case value_t::array:
{
assert(m_value.array != nullptr);
// delegate call to array_t::empty()
return m_value.array->empty();
}
case value_t::object:
{
assert(m_value.object != nullptr);
// delegate call to object_t::empty()
return m_value.object->empty();
}
@ -4660,6 +4571,10 @@ class basic_json
object | result of function object_t::size()
array | result of function array_t::size()
@note This function does not return the length of a string stored as JSON
value - it returns the number of elements in the JSON value which is 1 in
the case of a string.
@complexity Constant, as long as @ref array_t and @ref object_t satisfy
the Container concept; that is, their size() functions have constant
complexity.
@ -4690,13 +4605,13 @@ class basic_json
case value_t::array:
{
assert(m_value.array != nullptr);
// delegate call to array_t::size()
return m_value.array->size();
}
case value_t::object:
{
assert(m_value.object != nullptr);
// delegate call to object_t::size()
return m_value.object->size();
}
@ -4750,13 +4665,13 @@ class basic_json
{
case value_t::array:
{
assert(m_value.array != nullptr);
// delegate call to array_t::max_size()
return m_value.array->max_size();
}
case value_t::object:
{
assert(m_value.object != nullptr);
// delegate call to object_t::max_size()
return m_value.object->max_size();
}
@ -4833,21 +4748,18 @@ class basic_json
case value_t::string:
{
assert(m_value.string != nullptr);
m_value.string->clear();
break;
}
case value_t::array:
{
assert(m_value.array != nullptr);
m_value.array->clear();
break;
}
case value_t::object:
{
assert(m_value.object != nullptr);
m_value.object->clear();
break;
}
@ -4895,7 +4807,6 @@ class basic_json
}
// add element to array (move semantics)
assert(m_value.array != nullptr);
m_value.array->push_back(std::move(val));
// invalidate object
val.m_type = value_t::null;
@ -4931,7 +4842,6 @@ class basic_json
}
// add element to array
assert(m_value.array != nullptr);
m_value.array->push_back(val);
}
@ -4981,7 +4891,6 @@ class basic_json
}
// add element to array
assert(m_value.object != nullptr);
m_value.object->insert(val);
}
@ -5078,7 +4987,6 @@ class basic_json
// insert to array and return iterator
iterator result(this);
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, val);
return result;
}
@ -5134,7 +5042,6 @@ class basic_json
// insert to array and return iterator
iterator result(this);
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val);
return result;
}
@ -5201,7 +5108,6 @@ class basic_json
// insert to array and return iterator
iterator result(this);
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->insert(
pos.m_it.array_iterator,
first.m_it.array_iterator,
@ -5249,7 +5155,6 @@ class basic_json
// insert to array and return iterator
iterator result(this);
assert(m_value.array != nullptr);
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, ilist);
return result;
}
@ -5307,7 +5212,6 @@ class basic_json
// swap only works for arrays
if (is_array())
{
assert(m_value.array != nullptr);
std::swap(*(m_value.array), other);
}
else
@ -5341,7 +5245,6 @@ class basic_json
// swap only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
std::swap(*(m_value.object), other);
}
else
@ -5375,7 +5278,6 @@ class basic_json
// swap only works for strings
if (is_string())
{
assert(m_value.string != nullptr);
std::swap(*(m_value.string), other);
}
else
@ -5462,14 +5364,10 @@ class basic_json
{
case value_t::array:
{
assert(lhs.m_value.array != nullptr);
assert(rhs.m_value.array != nullptr);
return *lhs.m_value.array == *rhs.m_value.array;
}
case value_t::object:
{
assert(lhs.m_value.object != nullptr);
assert(rhs.m_value.object != nullptr);
return *lhs.m_value.object == *rhs.m_value.object;
}
case value_t::null:
@ -5478,8 +5376,6 @@ class basic_json
}
case value_t::string:
{
assert(lhs.m_value.string != nullptr);
assert(rhs.m_value.string != nullptr);
return *lhs.m_value.string == *rhs.m_value.string;
}
case value_t::boolean:
@ -5652,14 +5548,10 @@ class basic_json
{
case value_t::array:
{
assert(lhs.m_value.array != nullptr);
assert(rhs.m_value.array != nullptr);
return *lhs.m_value.array < *rhs.m_value.array;
}
case value_t::object:
{
assert(lhs.m_value.object != nullptr);
assert(rhs.m_value.object != nullptr);
return *lhs.m_value.object < *rhs.m_value.object;
}
case value_t::null:
@ -5668,8 +5560,6 @@ class basic_json
}
case value_t::string:
{
assert(lhs.m_value.string != nullptr);
assert(rhs.m_value.string != nullptr);
return *lhs.m_value.string < *rhs.m_value.string;
}
case value_t::boolean:
@ -5844,14 +5734,14 @@ class basic_json
// string->float->string, string->double->string or string->long
// double->string; to be safe, we read this value from
// std::numeric_limits<number_float_t>::digits10
const auto old_preicison = o.precision(std::numeric_limits<double>::digits10);
const auto old_precision = o.precision(std::numeric_limits<double>::digits10);
// do the actual serialization
j.dump(o, pretty_print, static_cast<unsigned int>(indentation));
// reset locale and precision
o.imbue(old_locale);
o.precision(old_preicison);
o.precision(old_precision);
return o;
}
@ -6201,8 +6091,6 @@ class basic_json
{
case value_t::object:
{
assert(m_value.object != nullptr);
if (m_value.object->empty())
{
o << "{}";
@ -6243,8 +6131,6 @@ class basic_json
case value_t::array:
{
assert(m_value.array != nullptr);
if (m_value.array->empty())
{
o << "[]";
@ -6283,7 +6169,6 @@ class basic_json
case value_t::string:
{
assert(m_value.string != nullptr);
o << string_t("\"") << escape_string(*m_value.string) << "\"";
return;
}
@ -8819,7 +8704,6 @@ class basic_json
basic_json result;
// iterate the JSON object values
assert(value.m_value.object != nullptr);
for (const auto& element : *value.m_value.object)
{
if (not element.second.is_primitive())