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nlohmann::detail::iter_impl< BasicJsonType > Class Template Reference

a template for a bidirectional iterator for the basic_json class This class implements a both iterators (iterator and const_iterator) for the basic_json class. More...

#include <acts/blob/sPHENIX/thirdparty/nlohmann_json/single_include/nlohmann/json.hpp>

+ Collaboration diagram for nlohmann::detail::iter_impl< BasicJsonType >:

Public Types

using iterator_category = std::bidirectional_iterator_tag
 
using value_type = typename BasicJsonType::value_type
 the type of the values when the iterator is dereferenced
 
using difference_type = typename BasicJsonType::difference_type
 a type to represent differences between iterators
 
using pointer = typename std::conditional< std::is_const< BasicJsonType >::value, typename BasicJsonType::const_pointer, typename BasicJsonType::pointer >::type
 defines a pointer to the type iterated over (value_type)
 
using reference = typename std::conditional< std::is_const< BasicJsonType >::value, typename BasicJsonType::const_reference, typename BasicJsonType::reference >::type
 defines a reference to the type iterated over (value_type)
 

Public Member Functions

 iter_impl ()=default
 default constructor
 
 iter_impl (pointer object) noexcept
 constructor for a given JSON instance
 
 iter_impl (const iter_impl< const BasicJsonType > &other) noexcept
 const copy constructor
 
iter_imploperator= (const iter_impl< const BasicJsonType > &other) noexcept
 converting assignment
 
 iter_impl (const iter_impl< typename std::remove_const< BasicJsonType >::type > &other) noexcept
 converting constructor
 
iter_imploperator= (const iter_impl< typename std::remove_const< BasicJsonType >::type > &other) noexcept
 converting assignment
 
reference operator* () const
 return a reference to the value pointed to by the iterator
 
pointer operator-> () const
 dereference the iterator
 
iter_impl const operator++ (int)
 post-increment (it++)
 
iter_imploperator++ ()
 pre-increment (++it)
 
iter_impl const operator-- (int)
 post-decrement (it–)
 
iter_imploperator-- ()
 pre-decrement (–it)
 
bool operator== (const iter_impl &other) const
 comparison: equal
 
bool operator!= (const iter_impl &other) const
 comparison: not equal
 
bool operator< (const iter_impl &other) const
 comparison: smaller
 
bool operator<= (const iter_impl &other) const
 comparison: less than or equal
 
bool operator> (const iter_impl &other) const
 comparison: greater than
 
bool operator>= (const iter_impl &other) const
 comparison: greater than or equal
 
iter_imploperator+= (difference_type i)
 add to iterator
 
iter_imploperator-= (difference_type i)
 subtract from iterator
 
iter_impl operator+ (difference_type i) const
 add to iterator
 
iter_impl operator- (difference_type i) const
 subtract from iterator
 
difference_type operator- (const iter_impl &other) const
 return difference
 
reference operator[] (difference_type n) const
 access to successor
 
const object_t::key_type & key () const
 return the key of an object iterator
 
reference value () const
 return the value of an iterator
 

Private Types

using object_t = typename BasicJsonType::object_t
 
using array_t = typename BasicJsonType::array_t
 

Private Member Functions

void set_begin () noexcept
 set the iterator to the first value
 
void set_end () noexcept
 set the iterator past the last value
 

Private Attributes

friend BasicJsonType
 
friend iteration_proxy< iter_impl >
 
friend iteration_proxy_value< iter_impl >
 
pointer m_object = nullptr
 associated JSON instance
 
internal_iterator< typename
std::remove_const
< BasicJsonType >::type > 
m_it {}
 the actual iterator of the associated instance
 

Friends

iter_impl operator+ (difference_type i, const iter_impl &it)
 addition of distance and iterator
 

Detailed Description

template<typename BasicJsonType>
class nlohmann::detail::iter_impl< BasicJsonType >

a template for a bidirectional iterator for the basic_json class This class implements a both iterators (iterator and const_iterator) for the basic_json class.

Note
An iterator is called initialized when a pointer to a JSON value has been set (e.g., by a constructor or a copy assignment). If the iterator is default-constructed, it is uninitialized and most methods are undefined. The library uses assertions to detect calls on uninitialized iterators. The class satisfies the following concept requirements:
  • BidirectionalIterator: The iterator that can be moved can be moved in both directions (i.e. incremented and decremented).
Since
version 1.0.0, simplified in version 2.0.9, change to bidirectional iterators in version 3.0.0 (see https://github.com/nlohmann/json/issues/593)

Definition at line 9675 of file json.hpp.

View newest version in sPHENIX GitHub at line 9675 of file json.hpp

Member Typedef Documentation

template<typename BasicJsonType>
using nlohmann::detail::iter_impl< BasicJsonType >::array_t = typename BasicJsonType::array_t
private

Definition at line 9684 of file json.hpp.

View newest version in sPHENIX GitHub at line 9684 of file json.hpp

template<typename BasicJsonType>
using nlohmann::detail::iter_impl< BasicJsonType >::difference_type = typename BasicJsonType::difference_type

a type to represent differences between iterators

Definition at line 9701 of file json.hpp.

View newest version in sPHENIX GitHub at line 9701 of file json.hpp

template<typename BasicJsonType>
using nlohmann::detail::iter_impl< BasicJsonType >::iterator_category = std::bidirectional_iterator_tag

The std::iterator class template (used as a base class to provide typedefs) is deprecated in C++17. The C++ Standard has never required user-defined iterators to derive from std::iterator. A user-defined iterator should provide publicly accessible typedefs named iterator_category, value_type, difference_type, pointer, and reference. Note that value_type is required to be non-const, even for constant iterators.

Definition at line 9696 of file json.hpp.

View newest version in sPHENIX GitHub at line 9696 of file json.hpp

template<typename BasicJsonType>
using nlohmann::detail::iter_impl< BasicJsonType >::object_t = typename BasicJsonType::object_t
private

Definition at line 9683 of file json.hpp.

View newest version in sPHENIX GitHub at line 9683 of file json.hpp

template<typename BasicJsonType>
using nlohmann::detail::iter_impl< BasicJsonType >::pointer = typename std::conditional<std::is_const<BasicJsonType>::value, typename BasicJsonType::const_pointer, typename BasicJsonType::pointer>::type

defines a pointer to the type iterated over (value_type)

Definition at line 9705 of file json.hpp.

View newest version in sPHENIX GitHub at line 9705 of file json.hpp

template<typename BasicJsonType>
using nlohmann::detail::iter_impl< BasicJsonType >::reference = typename std::conditional<std::is_const<BasicJsonType>::value, typename BasicJsonType::const_reference, typename BasicJsonType::reference>::type

defines a reference to the type iterated over (value_type)

Definition at line 9710 of file json.hpp.

View newest version in sPHENIX GitHub at line 9710 of file json.hpp

template<typename BasicJsonType>
using nlohmann::detail::iter_impl< BasicJsonType >::value_type = typename BasicJsonType::value_type

the type of the values when the iterator is dereferenced

Definition at line 9699 of file json.hpp.

View newest version in sPHENIX GitHub at line 9699 of file json.hpp

Constructor & Destructor Documentation

template<typename BasicJsonType>
iter_impl< typename std::conditional< std::is_const< BasicJsonType >::value, typename std::remove_const< BasicJsonType >::type, const BasicJsonType >::type > ( )
default

default constructor

allow basic_json to access private members

Definition at line 9678 of file json.hpp.

View newest version in sPHENIX GitHub at line 9678 of file json.hpp

template<typename BasicJsonType>
nlohmann::detail::iter_impl< BasicJsonType >::iter_impl ( pointer  object)
inlineexplicitnoexcept

constructor for a given JSON instance

Parameters
[in]objectpointer to a JSON object for this iterator
Precondition
object != nullptr
Postcondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 9721 of file json.hpp.

View newest version in sPHENIX GitHub at line 9721 of file json.hpp

template<typename BasicJsonType>
nlohmann::detail::iter_impl< BasicJsonType >::iter_impl ( const iter_impl< const BasicJsonType > &  other)
inlinenoexcept

const copy constructor

Note
The conventional copy constructor and copy assignment are implicitly defined. Combined with the following converting constructor and assignment, they support: (1) copy from iterator to iterator, (2) copy from const iterator to const iterator, and (3) conversion from iterator to const iterator. However conversion from const iterator to iterator is not defined.
Parameters
[in]otherconst iterator to copy from
Note
This copy constructor had to be defined explicitly to circumvent a bug occurring on msvc v19.0 compiler (VS 2015) debug build. For more information refer to: https://github.com/nlohmann/json/issues/1608

Definition at line 9763 of file json.hpp.

View newest version in sPHENIX GitHub at line 9763 of file json.hpp

template<typename BasicJsonType>
nlohmann::detail::iter_impl< BasicJsonType >::iter_impl ( const iter_impl< typename std::remove_const< BasicJsonType >::type > &  other)
inlinenoexcept

converting constructor

Parameters
[in]othernon-const iterator to copy from
Note
It is not checked whether other is initialized.

Definition at line 9785 of file json.hpp.

View newest version in sPHENIX GitHub at line 9785 of file json.hpp

Member Function Documentation

template<typename BasicJsonType>
const object_t::key_type& nlohmann::detail::iter_impl< BasicJsonType >::key ( ) const
inline

return the key of an object iterator

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10245 of file json.hpp.

View newest version in sPHENIX GitHub at line 10245 of file json.hpp

References JSON_HEDLEY_LIKELY, and JSON_THROW.

template<typename BasicJsonType>
bool nlohmann::detail::iter_impl< BasicJsonType >::operator!= ( const iter_impl< BasicJsonType > &  other) const
inline

comparison: not equal

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10059 of file json.hpp.

View newest version in sPHENIX GitHub at line 10059 of file json.hpp

References Acts::operator==().

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template<typename BasicJsonType>
reference nlohmann::detail::iter_impl< BasicJsonType >::operator* ( ) const
inline

return a reference to the value pointed to by the iterator

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 9875 of file json.hpp.

View newest version in sPHENIX GitHub at line 9875 of file json.hpp

References JSON_HEDLEY_LIKELY, and JSON_THROW.

template<typename BasicJsonType>
iter_impl nlohmann::detail::iter_impl< BasicJsonType >::operator+ ( difference_type  i) const
inline

add to iterator

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10160 of file json.hpp.

View newest version in sPHENIX GitHub at line 10160 of file json.hpp

template<typename BasicJsonType>
iter_impl const nlohmann::detail::iter_impl< BasicJsonType >::operator++ ( int  )
inline

post-increment (it++)

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 9946 of file json.hpp.

View newest version in sPHENIX GitHub at line 9946 of file json.hpp

template<typename BasicJsonType>
iter_impl& nlohmann::detail::iter_impl< BasicJsonType >::operator++ ( )
inline

pre-increment (++it)

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 9957 of file json.hpp.

View newest version in sPHENIX GitHub at line 9957 of file json.hpp

template<typename BasicJsonType>
iter_impl& nlohmann::detail::iter_impl< BasicJsonType >::operator+= ( difference_type  i)
inline

add to iterator

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10122 of file json.hpp.

View newest version in sPHENIX GitHub at line 10122 of file json.hpp

References JSON_THROW.

template<typename BasicJsonType>
iter_impl nlohmann::detail::iter_impl< BasicJsonType >::operator- ( difference_type  i) const
inline

subtract from iterator

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10182 of file json.hpp.

View newest version in sPHENIX GitHub at line 10182 of file json.hpp

template<typename BasicJsonType>
difference_type nlohmann::detail::iter_impl< BasicJsonType >::operator- ( const iter_impl< BasicJsonType > &  other) const
inline

return difference

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10193 of file json.hpp.

View newest version in sPHENIX GitHub at line 10193 of file json.hpp

References nlohmann::detail::internal_iterator< BasicJsonType >::array_iterator, JSON_THROW, nlohmann::detail::iter_impl< BasicJsonType >::m_it, and nlohmann::detail::internal_iterator< BasicJsonType >::primitive_iterator.

template<typename BasicJsonType>
iter_impl const nlohmann::detail::iter_impl< BasicJsonType >::operator-- ( int  )
inline

post-decrement (it–)

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 9989 of file json.hpp.

View newest version in sPHENIX GitHub at line 9989 of file json.hpp

template<typename BasicJsonType>
iter_impl& nlohmann::detail::iter_impl< BasicJsonType >::operator-- ( )
inline

pre-decrement (–it)

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10000 of file json.hpp.

View newest version in sPHENIX GitHub at line 10000 of file json.hpp

template<typename BasicJsonType>
iter_impl& nlohmann::detail::iter_impl< BasicJsonType >::operator-= ( difference_type  i)
inline

subtract from iterator

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10151 of file json.hpp.

View newest version in sPHENIX GitHub at line 10151 of file json.hpp

template<typename BasicJsonType>
pointer nlohmann::detail::iter_impl< BasicJsonType >::operator-> ( ) const
inline

dereference the iterator

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 9912 of file json.hpp.

View newest version in sPHENIX GitHub at line 9912 of file json.hpp

References JSON_HEDLEY_LIKELY, and JSON_THROW.

template<typename BasicJsonType>
bool nlohmann::detail::iter_impl< BasicJsonType >::operator< ( const iter_impl< BasicJsonType > &  other) const
inline

comparison: smaller

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10068 of file json.hpp.

View newest version in sPHENIX GitHub at line 10068 of file json.hpp

References nlohmann::detail::internal_iterator< BasicJsonType >::array_iterator, JSON_HEDLEY_UNLIKELY, JSON_THROW, nlohmann::detail::iter_impl< BasicJsonType >::m_it, nlohmann::detail::iter_impl< BasicJsonType >::m_object, and nlohmann::detail::internal_iterator< BasicJsonType >::primitive_iterator.

template<typename BasicJsonType>
bool nlohmann::detail::iter_impl< BasicJsonType >::operator<= ( const iter_impl< BasicJsonType > &  other) const
inline

comparison: less than or equal

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10095 of file json.hpp.

View newest version in sPHENIX GitHub at line 10095 of file json.hpp

template<typename BasicJsonType>
iter_impl& nlohmann::detail::iter_impl< BasicJsonType >::operator= ( const iter_impl< const BasicJsonType > &  other)
inlinenoexcept

converting assignment

Parameters
[in]otherconst iterator to copy from
Returns
const/non-const iterator
Note
It is not checked whether other is initialized.

Definition at line 9773 of file json.hpp.

View newest version in sPHENIX GitHub at line 9773 of file json.hpp

References nlohmann::detail::iter_impl< BasicJsonType >::m_object.

template<typename BasicJsonType>
iter_impl& nlohmann::detail::iter_impl< BasicJsonType >::operator= ( const iter_impl< typename std::remove_const< BasicJsonType >::type > &  other)
inlinenoexcept

converting assignment

Parameters
[in]othernon-const iterator to copy from
Returns
const/non-const iterator
Note
It is not checked whether other is initialized.

Definition at line 9795 of file json.hpp.

View newest version in sPHENIX GitHub at line 9795 of file json.hpp

References nlohmann::detail::iter_impl< BasicJsonType >::m_object.

template<typename BasicJsonType>
bool nlohmann::detail::iter_impl< BasicJsonType >::operator== ( const iter_impl< BasicJsonType > &  other) const
inline
template<typename BasicJsonType>
bool nlohmann::detail::iter_impl< BasicJsonType >::operator> ( const iter_impl< BasicJsonType > &  other) const
inline

comparison: greater than

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10104 of file json.hpp.

View newest version in sPHENIX GitHub at line 10104 of file json.hpp

References boost::operator<=().

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template<typename BasicJsonType>
bool nlohmann::detail::iter_impl< BasicJsonType >::operator>= ( const iter_impl< BasicJsonType > &  other) const
inline

comparison: greater than or equal

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10113 of file json.hpp.

View newest version in sPHENIX GitHub at line 10113 of file json.hpp

References nlohmann::detail::operator<().

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template<typename BasicJsonType>
reference nlohmann::detail::iter_impl< BasicJsonType >::operator[] ( difference_type  n) const
inline

access to successor

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10214 of file json.hpp.

View newest version in sPHENIX GitHub at line 10214 of file json.hpp

References JSON_HEDLEY_LIKELY, JSON_THROW, and n.

template<typename BasicJsonType>
void nlohmann::detail::iter_impl< BasicJsonType >::set_begin ( )
inlineprivatenoexcept

set the iterator to the first value

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 9807 of file json.hpp.

View newest version in sPHENIX GitHub at line 9807 of file json.hpp

Referenced by nlohmann::basic_json::begin(), and nlohmann::basic_json::cbegin().

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template<typename BasicJsonType>
void nlohmann::detail::iter_impl< BasicJsonType >::set_end ( )
inlineprivatenoexcept

set the iterator past the last value

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 9844 of file json.hpp.

View newest version in sPHENIX GitHub at line 9844 of file json.hpp

Referenced by nlohmann::basic_json::cend(), and nlohmann::basic_json::end().

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template<typename BasicJsonType>
reference nlohmann::detail::iter_impl< BasicJsonType >::value ( ) const
inline

return the value of an iterator

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10261 of file json.hpp.

View newest version in sPHENIX GitHub at line 10261 of file json.hpp

References kdfinder::operator*().

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Friends And Related Function Documentation

template<typename BasicJsonType>
iter_impl operator+ ( difference_type  i,
const iter_impl< BasicJsonType > &  it 
)
friend

addition of distance and iterator

Precondition
The iterator is initialized; i.e. m_object != nullptr.

Definition at line 10171 of file json.hpp.

View newest version in sPHENIX GitHub at line 10171 of file json.hpp

Member Data Documentation

template<typename BasicJsonType>
friend nlohmann::detail::iter_impl< BasicJsonType >::BasicJsonType
private

Definition at line 9679 of file json.hpp.

View newest version in sPHENIX GitHub at line 9679 of file json.hpp

template<typename BasicJsonType>
friend nlohmann::detail::iter_impl< BasicJsonType >::iteration_proxy< iter_impl >
private

Definition at line 9680 of file json.hpp.

View newest version in sPHENIX GitHub at line 9680 of file json.hpp

template<typename BasicJsonType>
friend nlohmann::detail::iter_impl< BasicJsonType >::iteration_proxy_value< iter_impl >
private

Definition at line 9681 of file json.hpp.

View newest version in sPHENIX GitHub at line 9681 of file json.hpp

template<typename BasicJsonType>
internal_iterator<typename std::remove_const<BasicJsonType>::type> nlohmann::detail::iter_impl< BasicJsonType >::m_it {}
private
template<typename BasicJsonType>
pointer nlohmann::detail::iter_impl< BasicJsonType >::m_object = nullptr
private

The documentation for this class was generated from the following file: