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This commit is contained in:
Niels Lohmann 2017-01-03 21:33:23 +01:00
parent 9755cc75b1
commit 245a69d554
4 changed files with 174 additions and 266 deletions
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170
src/json.hpp
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@ -128,7 +128,7 @@ struct has_mapped_type
std::is_integral<decltype(detect(std::declval<T>()))>::value; std::is_integral<decltype(detect(std::declval<T>()))>::value;
}; };
} } // namespace
/*! /*!
@brief a class to store JSON values @brief a class to store JSON values
@ -767,7 +767,7 @@ class basic_json
}; };
std::unique_ptr<T, decltype(deleter)> object(alloc.allocate(1), deleter); std::unique_ptr<T, decltype(deleter)> object(alloc.allocate(1), deleter);
alloc.construct(object.get(), std::forward<Args>(args)...); alloc.construct(object.get(), std::forward<Args>(args)...);
assert(object.get() != nullptr); assert(object != nullptr);
return object.release(); return object.release();
} }
@ -2583,30 +2583,26 @@ class basic_json
template<class T, typename std::enable_if< template<class T, typename std::enable_if<
std::is_convertible<typename object_t::key_type, typename T::key_type>::value and std::is_convertible<typename object_t::key_type, typename T::key_type>::value and
std::is_convertible<basic_json_t, typename T::mapped_type>::value, int>::type = 0> std::is_convertible<basic_json_t, typename T::mapped_type>::value, int>::type = 0>
T get_impl(T*) const T get_impl(T* /*unused*/) const
{ {
if (is_object()) if (is_object())
{ {
return T(m_value.object->begin(), m_value.object->end()); return T(m_value.object->begin(), m_value.object->end());
} }
else
{
throw std::domain_error("type must be object, but is " + type_name()); throw std::domain_error("type must be object, but is " + type_name());
} }
}
/// get an object (explicit) /// get an object (explicit)
object_t get_impl(object_t*) const object_t get_impl(object_t* /*unused*/) const
{ {
if (is_object()) if (is_object())
{ {
return *(m_value.object); return *(m_value.object);
} }
else
{
throw std::domain_error("type must be object, but is " + type_name()); throw std::domain_error("type must be object, but is " + type_name());
} }
}
/// get an array (explicit) /// get an array (explicit)
template<class T, typename std::enable_if< template<class T, typename std::enable_if<
@ -2615,7 +2611,7 @@ class basic_json
not std::is_arithmetic<T>::value and not std::is_arithmetic<T>::value and
not std::is_convertible<std::string, T>::value and not std::is_convertible<std::string, T>::value and
not has_mapped_type<T>::value, int>::type = 0> not has_mapped_type<T>::value, int>::type = 0>
T get_impl(T*) const T get_impl(T* /*unused*/) const
{ {
if (is_array()) if (is_array())
{ {
@ -2627,17 +2623,15 @@ class basic_json
}); });
return to_vector; return to_vector;
} }
else
{
throw std::domain_error("type must be array, but is " + type_name()); throw std::domain_error("type must be array, but is " + type_name());
} }
}
/// get an array (explicit) /// get an array (explicit)
template<class T, typename std::enable_if< template<class T, typename std::enable_if<
std::is_convertible<basic_json_t, T>::value and std::is_convertible<basic_json_t, T>::value and
not std::is_same<basic_json_t, T>::value, int>::type = 0> not std::is_same<basic_json_t, T>::value, int>::type = 0>
std::vector<T> get_impl(std::vector<T>*) const std::vector<T> get_impl(std::vector<T>* /*unused*/) const
{ {
if (is_array()) if (is_array())
{ {
@ -2650,60 +2644,52 @@ class basic_json
}); });
return to_vector; return to_vector;
} }
else
{
throw std::domain_error("type must be array, but is " + type_name()); throw std::domain_error("type must be array, but is " + type_name());
} }
}
/// get an array (explicit) /// get an array (explicit)
template<class T, typename std::enable_if< template<class T, typename std::enable_if<
std::is_same<basic_json, typename T::value_type>::value and std::is_same<basic_json, typename T::value_type>::value and
not has_mapped_type<T>::value, int>::type = 0> not has_mapped_type<T>::value, int>::type = 0>
T get_impl(T*) const T get_impl(T* /*unused*/) const
{ {
if (is_array()) if (is_array())
{ {
return T(m_value.array->begin(), m_value.array->end()); return T(m_value.array->begin(), m_value.array->end());
} }
else
{
throw std::domain_error("type must be array, but is " + type_name()); throw std::domain_error("type must be array, but is " + type_name());
} }
}
/// get an array (explicit) /// get an array (explicit)
array_t get_impl(array_t*) const array_t get_impl(array_t* /*unused*/) const
{ {
if (is_array()) if (is_array())
{ {
return *(m_value.array); return *(m_value.array);
} }
else
{
throw std::domain_error("type must be array, but is " + type_name()); throw std::domain_error("type must be array, but is " + type_name());
} }
}
/// get a string (explicit) /// get a string (explicit)
template<typename T, typename std::enable_if< template<typename T, typename std::enable_if<
std::is_convertible<string_t, T>::value, int>::type = 0> std::is_convertible<string_t, T>::value, int>::type = 0>
T get_impl(T*) const T get_impl(T* /*unused*/) const
{ {
if (is_string()) if (is_string())
{ {
return *m_value.string; return *m_value.string;
} }
else
{
throw std::domain_error("type must be string, but is " + type_name()); throw std::domain_error("type must be string, but is " + type_name());
} }
}
/// get a number (explicit) /// get a number (explicit)
template<typename T, typename std::enable_if< template<typename T, typename std::enable_if<
std::is_arithmetic<T>::value, int>::type = 0> std::is_arithmetic<T>::value, int>::type = 0>
T get_impl(T*) const T get_impl(T* /*unused*/) const
{ {
switch (m_type) switch (m_type)
{ {
@ -2730,7 +2716,7 @@ class basic_json
} }
/// get a boolean (explicit) /// get a boolean (explicit)
constexpr boolean_t get_impl(boolean_t*) const constexpr boolean_t get_impl(boolean_t* /*unused*/) const
{ {
return is_boolean() return is_boolean()
? m_value.boolean ? m_value.boolean
@ -2738,85 +2724,85 @@ class basic_json
} }
/// get a pointer to the value (object) /// get a pointer to the value (object)
object_t* get_impl_ptr(object_t*) noexcept object_t* get_impl_ptr(object_t* /*unused*/) noexcept
{ {
return is_object() ? m_value.object : nullptr; return is_object() ? m_value.object : nullptr;
} }
/// get a pointer to the value (object) /// get a pointer to the value (object)
constexpr const object_t* get_impl_ptr(const object_t*) const noexcept constexpr const object_t* get_impl_ptr(const object_t* /*unused*/) const noexcept
{ {
return is_object() ? m_value.object : nullptr; return is_object() ? m_value.object : nullptr;
} }
/// get a pointer to the value (array) /// get a pointer to the value (array)
array_t* get_impl_ptr(array_t*) noexcept array_t* get_impl_ptr(array_t* /*unused*/) noexcept
{ {
return is_array() ? m_value.array : nullptr; return is_array() ? m_value.array : nullptr;
} }
/// get a pointer to the value (array) /// get a pointer to the value (array)
constexpr const array_t* get_impl_ptr(const array_t*) const noexcept constexpr const array_t* get_impl_ptr(const array_t* /*unused*/) const noexcept
{ {
return is_array() ? m_value.array : nullptr; return is_array() ? m_value.array : nullptr;
} }
/// get a pointer to the value (string) /// get a pointer to the value (string)
string_t* get_impl_ptr(string_t*) noexcept string_t* get_impl_ptr(string_t* /*unused*/) noexcept
{ {
return is_string() ? m_value.string : nullptr; return is_string() ? m_value.string : nullptr;
} }
/// get a pointer to the value (string) /// get a pointer to the value (string)
constexpr const string_t* get_impl_ptr(const string_t*) const noexcept constexpr const string_t* get_impl_ptr(const string_t* /*unused*/) const noexcept
{ {
return is_string() ? m_value.string : nullptr; return is_string() ? m_value.string : nullptr;
} }
/// get a pointer to the value (boolean) /// get a pointer to the value (boolean)
boolean_t* get_impl_ptr(boolean_t*) noexcept boolean_t* get_impl_ptr(boolean_t* /*unused*/) noexcept
{ {
return is_boolean() ? &m_value.boolean : nullptr; return is_boolean() ? &m_value.boolean : nullptr;
} }
/// get a pointer to the value (boolean) /// get a pointer to the value (boolean)
constexpr const boolean_t* get_impl_ptr(const boolean_t*) const noexcept constexpr const boolean_t* get_impl_ptr(const boolean_t* /*unused*/) const noexcept
{ {
return is_boolean() ? &m_value.boolean : nullptr; return is_boolean() ? &m_value.boolean : nullptr;
} }
/// get a pointer to the value (integer number) /// get a pointer to the value (integer number)
number_integer_t* get_impl_ptr(number_integer_t*) noexcept number_integer_t* get_impl_ptr(number_integer_t* /*unused*/) noexcept
{ {
return is_number_integer() ? &m_value.number_integer : nullptr; return is_number_integer() ? &m_value.number_integer : nullptr;
} }
/// get a pointer to the value (integer number) /// get a pointer to the value (integer number)
constexpr const number_integer_t* get_impl_ptr(const number_integer_t*) const noexcept constexpr const number_integer_t* get_impl_ptr(const number_integer_t* /*unused*/) const noexcept
{ {
return is_number_integer() ? &m_value.number_integer : nullptr; return is_number_integer() ? &m_value.number_integer : nullptr;
} }
/// get a pointer to the value (unsigned number) /// get a pointer to the value (unsigned number)
number_unsigned_t* get_impl_ptr(number_unsigned_t*) noexcept number_unsigned_t* get_impl_ptr(number_unsigned_t* /*unused*/) noexcept
{ {
return is_number_unsigned() ? &m_value.number_unsigned : nullptr; return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
} }
/// get a pointer to the value (unsigned number) /// get a pointer to the value (unsigned number)
constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t*) const noexcept constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t* /*unused*/) const noexcept
{ {
return is_number_unsigned() ? &m_value.number_unsigned : nullptr; return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
} }
/// get a pointer to the value (floating-point number) /// get a pointer to the value (floating-point number)
number_float_t* get_impl_ptr(number_float_t*) noexcept number_float_t* get_impl_ptr(number_float_t* /*unused*/) noexcept
{ {
return is_number_float() ? &m_value.number_float : nullptr; return is_number_float() ? &m_value.number_float : nullptr;
} }
/// get a pointer to the value (floating-point number) /// get a pointer to the value (floating-point number)
constexpr const number_float_t* get_impl_ptr(const number_float_t*) const noexcept constexpr const number_float_t* get_impl_ptr(const number_float_t* /*unused*/) const noexcept
{ {
return is_number_float() ? &m_value.number_float : nullptr; return is_number_float() ? &m_value.number_float : nullptr;
} }
@ -2845,12 +2831,10 @@ class basic_json
{ {
return *ptr; return *ptr;
} }
else
{
throw std::domain_error("incompatible ReferenceType for get_ref, actual type is " + throw std::domain_error("incompatible ReferenceType for get_ref, actual type is " +
obj.type_name()); obj.type_name());
} }
}
public: public:
@ -3349,11 +3333,9 @@ class basic_json
return m_value.array->operator[](idx); return m_value.array->operator[](idx);
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief access specified array element @brief access specified array element
@ -3381,11 +3363,9 @@ class basic_json
{ {
return m_value.array->operator[](idx); return m_value.array->operator[](idx);
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief access specified object element @brief access specified object element
@ -3429,11 +3409,9 @@ class basic_json
{ {
return m_value.object->operator[](key); return m_value.object->operator[](key);
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief read-only access specified object element @brief read-only access specified object element
@ -3473,11 +3451,9 @@ class basic_json
assert(m_value.object->find(key) != m_value.object->end()); assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second; return m_value.object->find(key)->second;
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief access specified object element @brief access specified object element
@ -3590,11 +3566,9 @@ class basic_json
{ {
return m_value.object->operator[](key); return m_value.object->operator[](key);
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief read-only access specified object element @brief read-only access specified object element
@ -3635,11 +3609,9 @@ class basic_json
assert(m_value.object->find(key) != m_value.object->end()); assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second; return m_value.object->find(key)->second;
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief access specified object element with default value @brief access specified object element with default value
@ -3702,11 +3674,9 @@ class basic_json
{ {
return *it; return *it;
} }
else
{
return default_value; return default_value;
} }
}
else else
{ {
throw std::domain_error("cannot use value() with " + type_name()); throw std::domain_error("cannot use value() with " + type_name());
@ -4131,11 +4101,9 @@ class basic_json
{ {
return m_value.object->erase(key); return m_value.object->erase(key);
} }
else
{
throw std::domain_error("cannot use erase() with " + type_name()); throw std::domain_error("cannot use erase() with " + type_name());
} }
}
/*! /*!
@brief remove element from a JSON array given an index @brief remove element from a JSON array given an index
@ -5186,11 +5154,9 @@ class basic_json
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, val); result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, val);
return result; return result;
} }
else
{
throw std::domain_error("cannot use insert() with " + type_name()); throw std::domain_error("cannot use insert() with " + type_name());
} }
}
/*! /*!
@brief inserts element @brief inserts element
@ -5241,11 +5207,9 @@ class basic_json
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val); result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val);
return result; return result;
} }
else
{
throw std::domain_error("cannot use insert() with " + type_name()); throw std::domain_error("cannot use insert() with " + type_name());
} }
}
/*! /*!
@brief inserts elements @brief inserts elements
@ -6122,7 +6086,7 @@ class basic_json
{ {
// assertion to check that the iterator range is indeed contiguous, // assertion to check that the iterator range is indeed contiguous,
// see http://stackoverflow.com/a/35008842/266378 for more discussion // see http://stackoverflow.com/a/35008842/266378 for more discussion
assert(std::accumulate(first, last, std::make_pair<bool, int>(true, 0), assert(std::accumulate(first, last, std::pair<bool, int>(true, 0),
[&first](std::pair<bool, int> res, decltype(*first) val) [&first](std::pair<bool, int> res, decltype(*first) val)
{ {
res.first &= (val == *(std::next(std::addressof(*first), res.second++))); res.first &= (val == *(std::next(std::addressof(*first), res.second++)));
@ -6327,7 +6291,7 @@ class basic_json
} }
T result; T result;
uint8_t* ptr = reinterpret_cast<uint8_t*>(&result); auto* ptr = reinterpret_cast<uint8_t*>(&result);
for (size_t i = 0; i < sizeof(T); ++i) for (size_t i = 0; i < sizeof(T); ++i)
{ {
*ptr++ = vec[current_index + sizeof(T) - i]; *ptr++ = vec[current_index + sizeof(T) - i];
@ -6473,7 +6437,7 @@ class basic_json
{ {
// float 64 // float 64
v.push_back(0xcb); v.push_back(0xcb);
const uint8_t* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float)); const auto* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
for (size_t i = 0; i < 8; ++i) for (size_t i = 0; i < 8; ++i)
{ {
v.push_back(helper[7 - i]); v.push_back(helper[7 - i]);
@ -6716,7 +6680,7 @@ class basic_json
{ {
// Double-Precision Float // Double-Precision Float
v.push_back(0xfb); v.push_back(0xfb);
const uint8_t* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float)); const auto* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
for (size_t i = 0; i < 8; ++i) for (size_t i = 0; i < 8; ++i)
{ {
v.push_back(helper[7 - i]); v.push_back(helper[7 - i]);
@ -6916,7 +6880,7 @@ class basic_json
{ {
return v[current_idx]; return v[current_idx];
} }
else if (v[current_idx] <= 0x8f) // fixmap if (v[current_idx] <= 0x8f) // fixmap
{ {
basic_json result = value_t::object; basic_json result = value_t::object;
const size_t len = v[current_idx] & 0x0f; const size_t len = v[current_idx] & 0x0f;
@ -7577,7 +7541,7 @@ class basic_json
{ {
val = mant == 0 ? INFINITY : NAN; val = mant == 0 ? INFINITY : NAN;
} }
return half & 0x8000 ? -val : val; return (half & 0x8000) != 0 ? -val : val;
} }
case 0xfa: // Single-Precision Float (four-byte IEEE 754) case 0xfa: // Single-Precision Float (four-byte IEEE 754)
@ -7800,12 +7764,10 @@ class basic_json
// from c (1 byte) to \uxxxx (6 bytes) // from c (1 byte) to \uxxxx (6 bytes)
return res + 5; return res + 5;
} }
else
{
return res; return res;
} }
} }
}
}); });
} }
@ -8509,13 +8471,11 @@ class basic_json
{ {
return *m_object; return *m_object;
} }
else
{
throw std::out_of_range("cannot get value"); throw std::out_of_range("cannot get value");
} }
} }
} }
}
/*! /*!
@brief dereference the iterator @brief dereference the iterator
@ -8545,13 +8505,11 @@ class basic_json
{ {
return m_object; return m_object;
} }
else
{
throw std::out_of_range("cannot get value"); throw std::out_of_range("cannot get value");
} }
} }
} }
}
/*! /*!
@brief post-increment (it++) @brief post-increment (it++)
@ -8861,13 +8819,11 @@ class basic_json
{ {
return *m_object; return *m_object;
} }
else
{
throw std::out_of_range("cannot get value"); throw std::out_of_range("cannot get value");
} }
} }
} }
}
/*! /*!
@brief return the key of an object iterator @brief return the key of an object iterator
@ -8881,11 +8837,9 @@ class basic_json
{ {
return m_it.object_iterator->first; return m_it.object_iterator->first;
} }
else
{
throw std::domain_error("cannot use key() for non-object iterators"); throw std::domain_error("cannot use key() for non-object iterators");
} }
}
/*! /*!
@brief return the value of an iterator @brief return the value of an iterator
@ -10209,7 +10163,7 @@ basic_json_parser_66:
assert(m_marker == nullptr or m_marker <= m_limit); assert(m_marker == nullptr or m_marker <= m_limit);
// number of processed characters (p) // number of processed characters (p)
const size_t num_processed_chars = static_cast<size_t>(m_start - m_content); const auto num_processed_chars = static_cast<size_t>(m_start - m_content);
// offset for m_marker wrt. to m_start // offset for m_marker wrt. to m_start
const auto offset_marker = (m_marker == nullptr) ? 0 : m_marker - m_start; const auto offset_marker = (m_marker == nullptr) ? 0 : m_marker - m_start;
// number of unprocessed characters (u) // number of unprocessed characters (u)
@ -10601,7 +10555,7 @@ basic_json_parser_66:
else else
{ {
// parse with strtod // parse with strtod
result.m_value.number_float = str_to_float_t(static_cast<number_float_t*>(nullptr), NULL); result.m_value.number_float = str_to_float_t(static_cast<number_float_t*>(nullptr), nullptr);
// replace infinity and NAN by null // replace infinity and NAN by null
if (not std::isfinite(result.m_value.number_float)) if (not std::isfinite(result.m_value.number_float))
@ -11336,7 +11290,7 @@ basic_json_parser_66:
// - start: position after the previous slash // - start: position after the previous slash
for ( for (
// search for the first slash after the first character // search for the first slash after the first character
size_t slash = reference_string.find_first_of("/", 1), size_t slash = reference_string.find_first_of('/', 1),
// set the beginning of the first reference token // set the beginning of the first reference token
start = 1; start = 1;
// we can stop if start == string::npos+1 = 0 // we can stop if start == string::npos+1 = 0
@ -11345,16 +11299,16 @@ basic_json_parser_66:
// (will eventually be 0 if slash == std::string::npos) // (will eventually be 0 if slash == std::string::npos)
start = slash + 1, start = slash + 1,
// find next slash // find next slash
slash = reference_string.find_first_of("/", start)) slash = reference_string.find_first_of('/', start))
{ {
// use the text between the beginning of the reference token // use the text between the beginning of the reference token
// (start) and the last slash (slash). // (start) and the last slash (slash).
auto reference_token = reference_string.substr(start, slash - start); auto reference_token = reference_string.substr(start, slash - start);
// check reference tokens are properly escaped // check reference tokens are properly escaped
for (size_t pos = reference_token.find_first_of("~"); for (size_t pos = reference_token.find_first_of('~');
pos != std::string::npos; pos != std::string::npos;
pos = reference_token.find_first_of("~", pos + 1)) pos = reference_token.find_first_of('~', pos + 1))
{ {
assert(reference_token[pos] == '~'); assert(reference_token[pos] == '~');
@ -12188,7 +12142,7 @@ uses the standard template types.
@since version 1.0.0 @since version 1.0.0
*/ */
using json = basic_json<>; using json = basic_json<>;
} } // namespace nlohmann
/////////////////////// ///////////////////////
@ -12229,7 +12183,7 @@ struct hash<nlohmann::json>
return h(j.dump()); return h(j.dump());
} }
}; };
} } // namespace std
/*! /*!
@brief user-defined string literal for JSON values @brief user-defined string literal for JSON values

170
src/json.hpp.re2c
View file

@ -128,7 +128,7 @@ struct has_mapped_type
std::is_integral<decltype(detect(std::declval<T>()))>::value; std::is_integral<decltype(detect(std::declval<T>()))>::value;
}; };
} } // namespace
/*! /*!
@brief a class to store JSON values @brief a class to store JSON values
@ -767,7 +767,7 @@ class basic_json
}; };
std::unique_ptr<T, decltype(deleter)> object(alloc.allocate(1), deleter); std::unique_ptr<T, decltype(deleter)> object(alloc.allocate(1), deleter);
alloc.construct(object.get(), std::forward<Args>(args)...); alloc.construct(object.get(), std::forward<Args>(args)...);
assert(object.get() != nullptr); assert(object != nullptr);
return object.release(); return object.release();
} }
@ -2583,30 +2583,26 @@ class basic_json
template<class T, typename std::enable_if< template<class T, typename std::enable_if<
std::is_convertible<typename object_t::key_type, typename T::key_type>::value and std::is_convertible<typename object_t::key_type, typename T::key_type>::value and
std::is_convertible<basic_json_t, typename T::mapped_type>::value, int>::type = 0> std::is_convertible<basic_json_t, typename T::mapped_type>::value, int>::type = 0>
T get_impl(T*) const T get_impl(T* /*unused*/) const
{ {
if (is_object()) if (is_object())
{ {
return T(m_value.object->begin(), m_value.object->end()); return T(m_value.object->begin(), m_value.object->end());
} }
else
{
throw std::domain_error("type must be object, but is " + type_name()); throw std::domain_error("type must be object, but is " + type_name());
} }
}
/// get an object (explicit) /// get an object (explicit)
object_t get_impl(object_t*) const object_t get_impl(object_t* /*unused*/) const
{ {
if (is_object()) if (is_object())
{ {
return *(m_value.object); return *(m_value.object);
} }
else
{
throw std::domain_error("type must be object, but is " + type_name()); throw std::domain_error("type must be object, but is " + type_name());
} }
}
/// get an array (explicit) /// get an array (explicit)
template<class T, typename std::enable_if< template<class T, typename std::enable_if<
@ -2615,7 +2611,7 @@ class basic_json
not std::is_arithmetic<T>::value and not std::is_arithmetic<T>::value and
not std::is_convertible<std::string, T>::value and not std::is_convertible<std::string, T>::value and
not has_mapped_type<T>::value, int>::type = 0> not has_mapped_type<T>::value, int>::type = 0>
T get_impl(T*) const T get_impl(T* /*unused*/) const
{ {
if (is_array()) if (is_array())
{ {
@ -2627,17 +2623,15 @@ class basic_json
}); });
return to_vector; return to_vector;
} }
else
{
throw std::domain_error("type must be array, but is " + type_name()); throw std::domain_error("type must be array, but is " + type_name());
} }
}
/// get an array (explicit) /// get an array (explicit)
template<class T, typename std::enable_if< template<class T, typename std::enable_if<
std::is_convertible<basic_json_t, T>::value and std::is_convertible<basic_json_t, T>::value and
not std::is_same<basic_json_t, T>::value, int>::type = 0> not std::is_same<basic_json_t, T>::value, int>::type = 0>
std::vector<T> get_impl(std::vector<T>*) const std::vector<T> get_impl(std::vector<T>* /*unused*/) const
{ {
if (is_array()) if (is_array())
{ {
@ -2650,60 +2644,52 @@ class basic_json
}); });
return to_vector; return to_vector;
} }
else
{
throw std::domain_error("type must be array, but is " + type_name()); throw std::domain_error("type must be array, but is " + type_name());
} }
}
/// get an array (explicit) /// get an array (explicit)
template<class T, typename std::enable_if< template<class T, typename std::enable_if<
std::is_same<basic_json, typename T::value_type>::value and std::is_same<basic_json, typename T::value_type>::value and
not has_mapped_type<T>::value, int>::type = 0> not has_mapped_type<T>::value, int>::type = 0>
T get_impl(T*) const T get_impl(T* /*unused*/) const
{ {
if (is_array()) if (is_array())
{ {
return T(m_value.array->begin(), m_value.array->end()); return T(m_value.array->begin(), m_value.array->end());
} }
else
{
throw std::domain_error("type must be array, but is " + type_name()); throw std::domain_error("type must be array, but is " + type_name());
} }
}
/// get an array (explicit) /// get an array (explicit)
array_t get_impl(array_t*) const array_t get_impl(array_t* /*unused*/) const
{ {
if (is_array()) if (is_array())
{ {
return *(m_value.array); return *(m_value.array);
} }
else
{
throw std::domain_error("type must be array, but is " + type_name()); throw std::domain_error("type must be array, but is " + type_name());
} }
}
/// get a string (explicit) /// get a string (explicit)
template<typename T, typename std::enable_if< template<typename T, typename std::enable_if<
std::is_convertible<string_t, T>::value, int>::type = 0> std::is_convertible<string_t, T>::value, int>::type = 0>
T get_impl(T*) const T get_impl(T* /*unused*/) const
{ {
if (is_string()) if (is_string())
{ {
return *m_value.string; return *m_value.string;
} }
else
{
throw std::domain_error("type must be string, but is " + type_name()); throw std::domain_error("type must be string, but is " + type_name());
} }
}
/// get a number (explicit) /// get a number (explicit)
template<typename T, typename std::enable_if< template<typename T, typename std::enable_if<
std::is_arithmetic<T>::value, int>::type = 0> std::is_arithmetic<T>::value, int>::type = 0>
T get_impl(T*) const T get_impl(T* /*unused*/) const
{ {
switch (m_type) switch (m_type)
{ {
@ -2730,7 +2716,7 @@ class basic_json
} }
/// get a boolean (explicit) /// get a boolean (explicit)
constexpr boolean_t get_impl(boolean_t*) const constexpr boolean_t get_impl(boolean_t* /*unused*/) const
{ {
return is_boolean() return is_boolean()
? m_value.boolean ? m_value.boolean
@ -2738,85 +2724,85 @@ class basic_json
} }
/// get a pointer to the value (object) /// get a pointer to the value (object)
object_t* get_impl_ptr(object_t*) noexcept object_t* get_impl_ptr(object_t* /*unused*/) noexcept
{ {
return is_object() ? m_value.object : nullptr; return is_object() ? m_value.object : nullptr;
} }
/// get a pointer to the value (object) /// get a pointer to the value (object)
constexpr const object_t* get_impl_ptr(const object_t*) const noexcept constexpr const object_t* get_impl_ptr(const object_t* /*unused*/) const noexcept
{ {
return is_object() ? m_value.object : nullptr; return is_object() ? m_value.object : nullptr;
} }
/// get a pointer to the value (array) /// get a pointer to the value (array)
array_t* get_impl_ptr(array_t*) noexcept array_t* get_impl_ptr(array_t* /*unused*/) noexcept
{ {
return is_array() ? m_value.array : nullptr; return is_array() ? m_value.array : nullptr;
} }
/// get a pointer to the value (array) /// get a pointer to the value (array)
constexpr const array_t* get_impl_ptr(const array_t*) const noexcept constexpr const array_t* get_impl_ptr(const array_t* /*unused*/) const noexcept
{ {
return is_array() ? m_value.array : nullptr; return is_array() ? m_value.array : nullptr;
} }
/// get a pointer to the value (string) /// get a pointer to the value (string)
string_t* get_impl_ptr(string_t*) noexcept string_t* get_impl_ptr(string_t* /*unused*/) noexcept
{ {
return is_string() ? m_value.string : nullptr; return is_string() ? m_value.string : nullptr;
} }
/// get a pointer to the value (string) /// get a pointer to the value (string)
constexpr const string_t* get_impl_ptr(const string_t*) const noexcept constexpr const string_t* get_impl_ptr(const string_t* /*unused*/) const noexcept
{ {
return is_string() ? m_value.string : nullptr; return is_string() ? m_value.string : nullptr;
} }
/// get a pointer to the value (boolean) /// get a pointer to the value (boolean)
boolean_t* get_impl_ptr(boolean_t*) noexcept boolean_t* get_impl_ptr(boolean_t* /*unused*/) noexcept
{ {
return is_boolean() ? &m_value.boolean : nullptr; return is_boolean() ? &m_value.boolean : nullptr;
} }
/// get a pointer to the value (boolean) /// get a pointer to the value (boolean)
constexpr const boolean_t* get_impl_ptr(const boolean_t*) const noexcept constexpr const boolean_t* get_impl_ptr(const boolean_t* /*unused*/) const noexcept
{ {
return is_boolean() ? &m_value.boolean : nullptr; return is_boolean() ? &m_value.boolean : nullptr;
} }
/// get a pointer to the value (integer number) /// get a pointer to the value (integer number)
number_integer_t* get_impl_ptr(number_integer_t*) noexcept number_integer_t* get_impl_ptr(number_integer_t* /*unused*/) noexcept
{ {
return is_number_integer() ? &m_value.number_integer : nullptr; return is_number_integer() ? &m_value.number_integer : nullptr;
} }
/// get a pointer to the value (integer number) /// get a pointer to the value (integer number)
constexpr const number_integer_t* get_impl_ptr(const number_integer_t*) const noexcept constexpr const number_integer_t* get_impl_ptr(const number_integer_t* /*unused*/) const noexcept
{ {
return is_number_integer() ? &m_value.number_integer : nullptr; return is_number_integer() ? &m_value.number_integer : nullptr;
} }
/// get a pointer to the value (unsigned number) /// get a pointer to the value (unsigned number)
number_unsigned_t* get_impl_ptr(number_unsigned_t*) noexcept number_unsigned_t* get_impl_ptr(number_unsigned_t* /*unused*/) noexcept
{ {
return is_number_unsigned() ? &m_value.number_unsigned : nullptr; return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
} }
/// get a pointer to the value (unsigned number) /// get a pointer to the value (unsigned number)
constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t*) const noexcept constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t* /*unused*/) const noexcept
{ {
return is_number_unsigned() ? &m_value.number_unsigned : nullptr; return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
} }
/// get a pointer to the value (floating-point number) /// get a pointer to the value (floating-point number)
number_float_t* get_impl_ptr(number_float_t*) noexcept number_float_t* get_impl_ptr(number_float_t* /*unused*/) noexcept
{ {
return is_number_float() ? &m_value.number_float : nullptr; return is_number_float() ? &m_value.number_float : nullptr;
} }
/// get a pointer to the value (floating-point number) /// get a pointer to the value (floating-point number)
constexpr const number_float_t* get_impl_ptr(const number_float_t*) const noexcept constexpr const number_float_t* get_impl_ptr(const number_float_t* /*unused*/) const noexcept
{ {
return is_number_float() ? &m_value.number_float : nullptr; return is_number_float() ? &m_value.number_float : nullptr;
} }
@ -2845,12 +2831,10 @@ class basic_json
{ {
return *ptr; return *ptr;
} }
else
{
throw std::domain_error("incompatible ReferenceType for get_ref, actual type is " + throw std::domain_error("incompatible ReferenceType for get_ref, actual type is " +
obj.type_name()); obj.type_name());
} }
}
public: public:
@ -3349,11 +3333,9 @@ class basic_json
return m_value.array->operator[](idx); return m_value.array->operator[](idx);
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief access specified array element @brief access specified array element
@ -3381,11 +3363,9 @@ class basic_json
{ {
return m_value.array->operator[](idx); return m_value.array->operator[](idx);
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief access specified object element @brief access specified object element
@ -3429,11 +3409,9 @@ class basic_json
{ {
return m_value.object->operator[](key); return m_value.object->operator[](key);
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief read-only access specified object element @brief read-only access specified object element
@ -3473,11 +3451,9 @@ class basic_json
assert(m_value.object->find(key) != m_value.object->end()); assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second; return m_value.object->find(key)->second;
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief access specified object element @brief access specified object element
@ -3590,11 +3566,9 @@ class basic_json
{ {
return m_value.object->operator[](key); return m_value.object->operator[](key);
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief read-only access specified object element @brief read-only access specified object element
@ -3635,11 +3609,9 @@ class basic_json
assert(m_value.object->find(key) != m_value.object->end()); assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second; return m_value.object->find(key)->second;
} }
else
{
throw std::domain_error("cannot use operator[] with " + type_name()); throw std::domain_error("cannot use operator[] with " + type_name());
} }
}
/*! /*!
@brief access specified object element with default value @brief access specified object element with default value
@ -3702,11 +3674,9 @@ class basic_json
{ {
return *it; return *it;
} }
else
{
return default_value; return default_value;
} }
}
else else
{ {
throw std::domain_error("cannot use value() with " + type_name()); throw std::domain_error("cannot use value() with " + type_name());
@ -4131,11 +4101,9 @@ class basic_json
{ {
return m_value.object->erase(key); return m_value.object->erase(key);
} }
else
{
throw std::domain_error("cannot use erase() with " + type_name()); throw std::domain_error("cannot use erase() with " + type_name());
} }
}
/*! /*!
@brief remove element from a JSON array given an index @brief remove element from a JSON array given an index
@ -5186,11 +5154,9 @@ class basic_json
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, val); result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, val);
return result; return result;
} }
else
{
throw std::domain_error("cannot use insert() with " + type_name()); throw std::domain_error("cannot use insert() with " + type_name());
} }
}
/*! /*!
@brief inserts element @brief inserts element
@ -5241,11 +5207,9 @@ class basic_json
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val); result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val);
return result; return result;
} }
else
{
throw std::domain_error("cannot use insert() with " + type_name()); throw std::domain_error("cannot use insert() with " + type_name());
} }
}
/*! /*!
@brief inserts elements @brief inserts elements
@ -6122,7 +6086,7 @@ class basic_json
{ {
// assertion to check that the iterator range is indeed contiguous, // assertion to check that the iterator range is indeed contiguous,
// see http://stackoverflow.com/a/35008842/266378 for more discussion // see http://stackoverflow.com/a/35008842/266378 for more discussion
assert(std::accumulate(first, last, std::make_pair<bool, int>(true, 0), assert(std::accumulate(first, last, std::pair<bool, int>(true, 0),
[&first](std::pair<bool, int> res, decltype(*first) val) [&first](std::pair<bool, int> res, decltype(*first) val)
{ {
res.first &= (val == *(std::next(std::addressof(*first), res.second++))); res.first &= (val == *(std::next(std::addressof(*first), res.second++)));
@ -6327,7 +6291,7 @@ class basic_json
} }
T result; T result;
uint8_t* ptr = reinterpret_cast<uint8_t*>(&result); auto* ptr = reinterpret_cast<uint8_t*>(&result);
for (size_t i = 0; i < sizeof(T); ++i) for (size_t i = 0; i < sizeof(T); ++i)
{ {
*ptr++ = vec[current_index + sizeof(T) - i]; *ptr++ = vec[current_index + sizeof(T) - i];
@ -6473,7 +6437,7 @@ class basic_json
{ {
// float 64 // float 64
v.push_back(0xcb); v.push_back(0xcb);
const uint8_t* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float)); const auto* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
for (size_t i = 0; i < 8; ++i) for (size_t i = 0; i < 8; ++i)
{ {
v.push_back(helper[7 - i]); v.push_back(helper[7 - i]);
@ -6716,7 +6680,7 @@ class basic_json
{ {
// Double-Precision Float // Double-Precision Float
v.push_back(0xfb); v.push_back(0xfb);
const uint8_t* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float)); const auto* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
for (size_t i = 0; i < 8; ++i) for (size_t i = 0; i < 8; ++i)
{ {
v.push_back(helper[7 - i]); v.push_back(helper[7 - i]);
@ -6916,7 +6880,7 @@ class basic_json
{ {
return v[current_idx]; return v[current_idx];
} }
else if (v[current_idx] <= 0x8f) // fixmap if (v[current_idx] <= 0x8f) // fixmap
{ {
basic_json result = value_t::object; basic_json result = value_t::object;
const size_t len = v[current_idx] & 0x0f; const size_t len = v[current_idx] & 0x0f;
@ -7577,7 +7541,7 @@ class basic_json
{ {
val = mant == 0 ? INFINITY : NAN; val = mant == 0 ? INFINITY : NAN;
} }
return half & 0x8000 ? -val : val; return (half & 0x8000) != 0 ? -val : val;
} }
case 0xfa: // Single-Precision Float (four-byte IEEE 754) case 0xfa: // Single-Precision Float (four-byte IEEE 754)
@ -7800,12 +7764,10 @@ class basic_json
// from c (1 byte) to \uxxxx (6 bytes) // from c (1 byte) to \uxxxx (6 bytes)
return res + 5; return res + 5;
} }
else
{
return res; return res;
} }
} }
}
}); });
} }
@ -8509,13 +8471,11 @@ class basic_json
{ {
return *m_object; return *m_object;
} }
else
{
throw std::out_of_range("cannot get value"); throw std::out_of_range("cannot get value");
} }
} }
} }
}
/*! /*!
@brief dereference the iterator @brief dereference the iterator
@ -8545,13 +8505,11 @@ class basic_json
{ {
return m_object; return m_object;
} }
else
{
throw std::out_of_range("cannot get value"); throw std::out_of_range("cannot get value");
} }
} }
} }
}
/*! /*!
@brief post-increment (it++) @brief post-increment (it++)
@ -8861,13 +8819,11 @@ class basic_json
{ {
return *m_object; return *m_object;
} }
else
{
throw std::out_of_range("cannot get value"); throw std::out_of_range("cannot get value");
} }
} }
} }
}
/*! /*!
@brief return the key of an object iterator @brief return the key of an object iterator
@ -8881,11 +8837,9 @@ class basic_json
{ {
return m_it.object_iterator->first; return m_it.object_iterator->first;
} }
else
{
throw std::domain_error("cannot use key() for non-object iterators"); throw std::domain_error("cannot use key() for non-object iterators");
} }
}
/*! /*!
@brief return the value of an iterator @brief return the value of an iterator
@ -9359,7 +9313,7 @@ class basic_json
assert(m_marker == nullptr or m_marker <= m_limit); assert(m_marker == nullptr or m_marker <= m_limit);
// number of processed characters (p) // number of processed characters (p)
const size_t num_processed_chars = static_cast<size_t>(m_start - m_content); const auto num_processed_chars = static_cast<size_t>(m_start - m_content);
// offset for m_marker wrt. to m_start // offset for m_marker wrt. to m_start
const auto offset_marker = (m_marker == nullptr) ? 0 : m_marker - m_start; const auto offset_marker = (m_marker == nullptr) ? 0 : m_marker - m_start;
// number of unprocessed characters (u) // number of unprocessed characters (u)
@ -9751,7 +9705,7 @@ class basic_json
else else
{ {
// parse with strtod // parse with strtod
result.m_value.number_float = str_to_float_t(static_cast<number_float_t*>(nullptr), NULL); result.m_value.number_float = str_to_float_t(static_cast<number_float_t*>(nullptr), nullptr);
// replace infinity and NAN by null // replace infinity and NAN by null
if (not std::isfinite(result.m_value.number_float)) if (not std::isfinite(result.m_value.number_float))
@ -10486,7 +10440,7 @@ class basic_json
// - start: position after the previous slash // - start: position after the previous slash
for ( for (
// search for the first slash after the first character // search for the first slash after the first character
size_t slash = reference_string.find_first_of("/", 1), size_t slash = reference_string.find_first_of('/', 1),
// set the beginning of the first reference token // set the beginning of the first reference token
start = 1; start = 1;
// we can stop if start == string::npos+1 = 0 // we can stop if start == string::npos+1 = 0
@ -10495,16 +10449,16 @@ class basic_json
// (will eventually be 0 if slash == std::string::npos) // (will eventually be 0 if slash == std::string::npos)
start = slash + 1, start = slash + 1,
// find next slash // find next slash
slash = reference_string.find_first_of("/", start)) slash = reference_string.find_first_of('/', start))
{ {
// use the text between the beginning of the reference token // use the text between the beginning of the reference token
// (start) and the last slash (slash). // (start) and the last slash (slash).
auto reference_token = reference_string.substr(start, slash - start); auto reference_token = reference_string.substr(start, slash - start);
// check reference tokens are properly escaped // check reference tokens are properly escaped
for (size_t pos = reference_token.find_first_of("~"); for (size_t pos = reference_token.find_first_of('~');
pos != std::string::npos; pos != std::string::npos;
pos = reference_token.find_first_of("~", pos + 1)) pos = reference_token.find_first_of('~', pos + 1))
{ {
assert(reference_token[pos] == '~'); assert(reference_token[pos] == '~');
@ -11338,7 +11292,7 @@ uses the standard template types.
@since version 1.0.0 @since version 1.0.0
*/ */
using json = basic_json<>; using json = basic_json<>;
} } // namespace nlohmann
/////////////////////// ///////////////////////
@ -11379,7 +11333,7 @@ struct hash<nlohmann::json>
return h(j.dump()); return h(j.dump());
} }
}; };
} } // namespace std
/*! /*!
@brief user-defined string literal for JSON values @brief user-defined string literal for JSON values

2
test/src/unit-allocator.cpp
View file

@ -80,7 +80,7 @@ struct my_allocator : std::allocator<T>
} }
else else
{ {
::new(reinterpret_cast<void*>(p)) T(std::forward<Args>(args)...); ::new (reinterpret_cast<void*>(p)) T(std::forward<Args>(args)...);
} }
} }

2
test/src/unit-constructor1.cpp
View file

@ -912,7 +912,7 @@ TEST_CASE("constructors")
SECTION("array") SECTION("array")
{ {
json j { {"one", 1}, {"two", 1u}, {"three", 2.2}, {"four", false} , 13 }; json j { {"one", 1}, {"two", 1u}, {"three", 2.2}, {"four", false}, 13 };
CHECK(j.type() == json::value_t::array); CHECK(j.type() == json::value_t::array);
} }
} }