Represents a JSON value. 更多...

#include <value.h>

类
class	Comments

class	CZString

union	ValueHolder

Public 类型
using	Members = std::vector< String >

using	iterator = ValueIterator

using	const_iterator = ValueConstIterator

using	UInt = nim_cpp_wrapper_util::Json::UInt

using	Int = nim_cpp_wrapper_util::Json::Int

using	UInt64 = nim_cpp_wrapper_util::Json::UInt64

using	Int64 = nim_cpp_wrapper_util::Json::Int64

using	LargestInt = nim_cpp_wrapper_util::Json::LargestInt

using	LargestUInt = nim_cpp_wrapper_util::Json::LargestUInt

using	ArrayIndex = nim_cpp_wrapper_util::Json::ArrayIndex

using	value_type = std::string

typedef std::map< CZString, Value >	ObjectValues

Public 成员函数
	Value (ValueType type=nullValue)
	Create a default Value of the given type.

	Value (Int value)

	Value (UInt value)

	Value (Int64 value)

	Value (UInt64 value)

	Value (double value)

	Value (const char *value)
	Copy til first 0. (NULL causes to seg-fault.)

	Value (const char begin, const char end)
	Copy all, incl zeroes.

	Value (const StaticString &value)
	Constructs a value from a static string.

	Value (const String &value)

	Value (bool value)

	Value (std::nullptr_t ptr)=delete

	Value (const Value &other)

	Value (Value &&other)

	~Value ()

Value &	operator= (const Value &other)

Value &	operator= (Value &&other)

void	swap (Value &other)
	Swap everything.

void	swapPayload (Value &other)
	Swap values but leave comments and source offsets in place.

void	copy (const Value &other)
	copy everything.

void	copyPayload (const Value &other)
	copy values but leave comments and source offsets in place.

ValueType	type () const

bool	operator< (const Value &other) const
	Compare payload only, not comments etc.

bool	operator<= (const Value &other) const

bool	operator>= (const Value &other) const

bool	operator> (const Value &other) const

bool	operator== (const Value &other) const

bool	operator!= (const Value &other) const

int	compare (const Value &other) const

const char *	asCString () const
	Embedded zeroes could cause you trouble!

String	asString () const
	Embedded zeroes are possible.

bool	getString (char const begin, char const end) const

Int	asInt () const

UInt	asUInt () const

Int64	asInt64 () const

UInt64	asUInt64 () const

LargestInt	asLargestInt () const

LargestUInt	asLargestUInt () const

float	asFloat () const

double	asDouble () const

bool	asBool () const

bool	isNull () const

bool	isBool () const

bool	isInt () const

bool	isInt64 () const

bool	isUInt () const

bool	isUInt64 () const

bool	isIntegral () const

bool	isDouble () const

bool	isNumeric () const

bool	isString () const

bool	isArray () const

bool	isObject () const

template<typename T >
T	as () const JSONCPP_TEMPLATE_DELETE
	The `as<T>` and `is<T>` member function templates and specializations.

template<typename T >
bool	is () const JSONCPP_TEMPLATE_DELETE

bool	isConvertibleTo (ValueType other) const

ArrayIndex	size () const
	Number of values in array or object

bool	empty () const
	Return true if empty array, empty object, or null; otherwise, false.

	operator bool () const
	Return !isNull()

void	clear ()

void	resize (ArrayIndex newSize)

Value &	operator[] (ArrayIndex index)

Value &	operator[] (int index)

const Value &	operator[] (ArrayIndex index) const

const Value &	operator[] (int index) const

Value	get (ArrayIndex index, const Value &defaultValue) const

bool	isValidIndex (ArrayIndex index) const
	Return true if index < size().

Value &	append (const Value &value)
	Append value to array at the end.

Value &	append (Value &&value)

bool	insert (ArrayIndex index, const Value &newValue)
	Insert value in array at specific index

bool	insert (ArrayIndex index, Value &&newValue)

Value &	operator[] (const char *key)

const Value &	operator[] (const char *key) const

Value &	operator[] (const String &key)

const Value &	operator[] (const String &key) const

Value &	operator[] (const StaticString &key)
	Access an object value by name, create a null member if it does not exist.

Value	get (const char *key, const Value &defaultValue) const

Value	get (const char begin, const char end, const Value &defaultValue) const

Value	get (const String &key, const Value &defaultValue) const

Value const *	find (char const begin, char const end) const

Value *	demand (char const begin, char const end)

void	removeMember (const char *key)
	Remove and return the named member.

void	removeMember (const String &key)

bool	removeMember (const char key, Value removed)

bool	removeMember (String const &key, Value *removed)
	Remove the named map member.

bool	removeMember (const char begin, const char end, Value *removed)
	Same as removeMember(String const& key, Value* removed)

bool	removeIndex (ArrayIndex index, Value *removed)
	Remove the indexed array element.

bool	isMember (const char *key) const

bool	isMember (const String &key) const

bool	isMember (const char begin, const char end) const
	Same as isMember(String const& key)const

Members	getMemberNames () const
	Return a list of the member names.

void	setComment (const char *comment, CommentPlacement placement)

void	setComment (const char *comment, size_t len, CommentPlacement placement)
	Comments must be //... or /* ... *‍/

void	setComment (String comment, CommentPlacement placement)
	Comments must be //... or /* ... *‍/

bool	hasComment (CommentPlacement placement) const

String	getComment (CommentPlacement placement) const
	Include delimiters and embedded newlines.

String	toStyledString () const

const_iterator	begin () const

const_iterator	end () const

iterator	begin ()

iterator	end ()

void	setOffsetStart (ptrdiff_t start)

void	setOffsetLimit (ptrdiff_t limit)

ptrdiff_t	getOffsetStart () const

ptrdiff_t	getOffsetLimit () const

template<>
bool	as () const

template<>
bool	is () const

template<>
Int	as () const

template<>
bool	is () const

template<>
UInt	as () const

template<>
bool	is () const

template<>
Int64	as () const

template<>
bool	is () const

template<>
UInt64	as () const

template<>
bool	is () const

template<>
double	as () const

template<>
bool	is () const

template<>
String	as () const

template<>
bool	is () const

template<>
float	as () const

template<>
const char *	as () const

静态 Public 成员函数
static Value const &	nullSingleton ()

静态 Public 属性
static const Value &	null

static const Value &	nullRef

static constexpr LargestInt	minLargestInt = LargestInt(~(LargestUInt(-1) / 2))
	Minimum signed integer value that can be stored in a nim_cpp_wrapper_util::Json::Value.

static constexpr LargestInt	maxLargestInt = LargestInt(LargestUInt(-1) / 2)
	Maximum signed integer value that can be stored in a nim_cpp_wrapper_util::Json::Value.

static constexpr LargestUInt	maxLargestUInt = LargestUInt(-1)
	Maximum unsigned integer value that can be stored in a nim_cpp_wrapper_util::Json::Value.

static constexpr Int	minInt = Int(~(UInt(-1) / 2))
	Minimum signed int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

static constexpr Int	maxInt = Int(UInt(-1) / 2)
	Maximum signed int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

static constexpr UInt	maxUInt = UInt(-1)
	Maximum unsigned int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

static constexpr Int64	minInt64 = Int64(~(UInt64(-1) / 2))
	Minimum signed 64 bits int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

static constexpr Int64	maxInt64 = Int64(UInt64(-1) / 2)
	Maximum signed 64 bits int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

static constexpr UInt64	maxUInt64 = UInt64(-1)
	Maximum unsigned 64 bits int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

static constexpr UInt	defaultRealPrecision = 17
	Default precision for real value for string representation.

static constexpr double	maxUInt64AsDouble = 18446744073709551615.0

Private 成员函数
void	setType (ValueType v)

bool	isAllocated () const

void	setIsAllocated (bool v)

void	initBasic (ValueType type, bool allocated=false)

void	dupPayload (const Value &other)

void	releasePayload ()

void	dupMeta (const Value &other)

Value &	resolveReference (const char *key)

Value &	resolveReference (const char key, const char end)

Private 属性
union nim_cpp_wrapper_util::Json::Value::ValueHolder	value_

struct {
unsigned int value_type_: 8

unsigned int allocated_: 1

}	bits_

Comments	comments_

ptrdiff_t	start_

ptrdiff_t	limit_

友元
class	ValueIteratorBase

详细描述

Represents a JSON value.

This class is a discriminated union wrapper that can represents a:

signed integer [range: Value::minInt - Value::maxInt]
unsigned integer (range: 0 - Value::maxUInt)
double
UTF-8 string
boolean
'null'
an ordered list of Value
collection of name/value pairs (javascript object)

The type of the held value is represented by a ValueType and can be obtained using type().

Values of an objectValue or arrayValue can be accessed using operator[]() methods. Non-const methods will automatically create the a nullValue element if it does not exist. The sequence of an arrayValue will be automatically resized and initialized with nullValue. resize() can be used to enlarge or truncate an arrayValue.

The get() methods can be used to obtain default value in the case the required element does not exist.

It is possible to iterate over the list of member keys of an object using the getMemberNames() method.

注解: Value string-length fit in size_t, but keys must be < 2^30. (The reason is an implementation detail.) A #CharReader will raise an exception if a bound is exceeded to avoid security holes in your app, but the Value API does not check bounds. That is the responsibility of the caller.

成员类型定义说明

◆ ArrayIndex

using nim_cpp_wrapper_util::Json::Value::ArrayIndex = nim_cpp_wrapper_util::Json::ArrayIndex

◆ const_iterator

using nim_cpp_wrapper_util::Json::Value::const_iterator = ValueConstIterator

◆ Int

using nim_cpp_wrapper_util::Json::Value::Int = nim_cpp_wrapper_util::Json::Int

◆ Int64

using nim_cpp_wrapper_util::Json::Value::Int64 = nim_cpp_wrapper_util::Json::Int64

◆ iterator

using nim_cpp_wrapper_util::Json::Value::iterator = ValueIterator

◆ LargestInt

using nim_cpp_wrapper_util::Json::Value::LargestInt = nim_cpp_wrapper_util::Json::LargestInt

◆ LargestUInt

using nim_cpp_wrapper_util::Json::Value::LargestUInt = nim_cpp_wrapper_util::Json::LargestUInt

◆ Members

using nim_cpp_wrapper_util::Json::Value::Members = std::vector<String>

◆ ObjectValues

typedef std::map<CZString, Value> nim_cpp_wrapper_util::Json::Value::ObjectValues

◆ UInt

using nim_cpp_wrapper_util::Json::Value::UInt = nim_cpp_wrapper_util::Json::UInt

◆ UInt64

using nim_cpp_wrapper_util::Json::Value::UInt64 = nim_cpp_wrapper_util::Json::UInt64

◆ value_type

using nim_cpp_wrapper_util::Json::Value::value_type = std::string

构造及析构函数说明

◆ Value() [1/14]

nim_cpp_wrapper_util::Json::Value::Value ( ValueType type = nullValue )

Create a default Value of the given type.

This is a very useful constructor. To create an empty array, pass arrayValue. To create an empty object, pass objectValue. Another Value can then be set to this one by assignment. This is useful since clear() and resize() will not alter types.

Examples:

nim_cpp_wrapper_util::Json::Value null_value; // null
nim_cpp_wrapper_util::Json::Value arr_value(nim_cpp_wrapper_util::Json::arrayValue); // []
nim_cpp_wrapper_util::Json::Value obj_value(nim_cpp_wrapper_util::Json::objectValue); // {}

◆ Value() [2/14]

nim_cpp_wrapper_util::Json::Value::Value ( Int value )

◆ Value() [3/14]

nim_cpp_wrapper_util::Json::Value::Value ( UInt value )

◆ Value() [4/14]

nim_cpp_wrapper_util::Json::Value::Value ( Int64 value )

◆ Value() [5/14]

nim_cpp_wrapper_util::Json::Value::Value ( UInt64 value )

◆ Value() [6/14]

nim_cpp_wrapper_util::Json::Value::Value ( double value )

◆ Value() [7/14]

nim_cpp_wrapper_util::Json::Value::Value ( const char * value )

Copy til first 0. (NULL causes to seg-fault.)

◆ Value() [8/14]

nim_cpp_wrapper_util::Json::Value::Value	(	const char *	begin,
		const char *	end
	)

Copy all, incl zeroes.

◆ Value() [9/14]

nim_cpp_wrapper_util::Json::Value::Value ( const StaticString & value )

Constructs a value from a static string.

Like other value string constructor but do not duplicate the string for internal storage. The given string must remain alive after the call to this constructor.

注解: This works only for null-terminated strings. (We cannot change the size of this class, so we have nowhere to store the length, which might be computed later for various operations.)

Example of usage:

static StaticString foo("some text");

nim_cpp_wrapper_util::Json::Value aValue(foo);

nim_cpp_wrapper_util::Json::StaticString

Lightweight wrapper to tag static string.

Definition: value.h:149

◆ Value() [10/14]

nim_cpp_wrapper_util::Json::Value::Value ( const String & value )

◆ Value() [11/14]

nim_cpp_wrapper_util::Json::Value::Value ( bool value )

◆ Value() [12/14]

nim_cpp_wrapper_util::Json::Value::Value ( std::nullptr_t ptr )

delete

◆ Value() [13/14]

nim_cpp_wrapper_util::Json::Value::Value ( const Value & other )

◆ Value() [14/14]

nim_cpp_wrapper_util::Json::Value::Value ( Value && other )

◆ ~Value()

nim_cpp_wrapper_util::Json::Value::~Value ( )

成员函数说明

◆ append() [1/2]

Value & nim_cpp_wrapper_util::Json::Value::append ( const Value & value )

Append value to array at the end.

template<>

float nim_cpp_wrapper_util::Json::Value::as ( ) const

inline

These as specializations are type conversions, and do not have a corresponding is.

◆ as() [9/10]

template<>

const char * nim_cpp_wrapper_util::Json::Value::as ( ) const

inline

◆ as() [10/10]

template<typename T >

T nim_cpp_wrapper_util::Json::Value::as ( ) const

The as<T> and is<T> member function templates and specializations.

◆ asBool()

bool nim_cpp_wrapper_util::Json::Value::asBool ( ) const

◆ asCString()

const char * nim_cpp_wrapper_util::Json::Value::asCString ( ) const

Embedded zeroes could cause you trouble!

◆ asDouble()

double nim_cpp_wrapper_util::Json::Value::asDouble ( ) const

◆ asFloat()

float nim_cpp_wrapper_util::Json::Value::asFloat ( ) const

◆ asInt()

Value::Int nim_cpp_wrapper_util::Json::Value::asInt ( ) const

◆ asInt64()

Int64 nim_cpp_wrapper_util::Json::Value::asInt64 ( ) const

◆ asLargestInt()

LargestInt nim_cpp_wrapper_util::Json::Value::asLargestInt ( ) const

◆ asLargestUInt()

LargestUInt nim_cpp_wrapper_util::Json::Value::asLargestUInt ( ) const

◆ asString()

String nim_cpp_wrapper_util::Json::Value::asString ( ) const

Embedded zeroes are possible.

◆ asUInt()

Value::UInt nim_cpp_wrapper_util::Json::Value::asUInt ( ) const

◆ asUInt64()

UInt64 nim_cpp_wrapper_util::Json::Value::asUInt64 ( ) const

◆ begin() [1/2]

Value::iterator nim_cpp_wrapper_util::Json::Value::begin ( )

◆ begin() [2/2]

Value::const_iterator nim_cpp_wrapper_util::Json::Value::begin ( ) const

◆ clear()

void nim_cpp_wrapper_util::Json::Value::clear ( )

Remove all object members and array elements.

前置条件: type() is arrayValue, objectValue, or nullValue

后置条件: type() is unchanged

◆ compare()

int nim_cpp_wrapper_util::Json::Value::compare ( const Value & other ) const

◆ copy()

void nim_cpp_wrapper_util::Json::Value::copy ( const Value & other )

copy everything.

◆ copyPayload()

void nim_cpp_wrapper_util::Json::Value::copyPayload ( const Value & other )

copy values but leave comments and source offsets in place.

◆ demand()

Value * nim_cpp_wrapper_util::Json::Value::demand	(	char const *	begin,
		char const *	end
	)

Most general and efficient version of object-mutators.

注解: As stated elsewhere, behavior is undefined if (end-begin) >= 2^30

返回: non-zero, but JSON_ASSERT if this is neither object nor nullValue.

◆ dupMeta()

void nim_cpp_wrapper_util::Json::Value::dupMeta ( const Value & other )

private

◆ dupPayload()

void nim_cpp_wrapper_util::Json::Value::dupPayload ( const Value & other )

private

◆ empty()

bool nim_cpp_wrapper_util::Json::Value::empty ( ) const

Return true if empty array, empty object, or null; otherwise, false.

◆ end() [1/2]

Value::iterator nim_cpp_wrapper_util::Json::Value::end ( )

◆ end() [2/2]

Value::const_iterator nim_cpp_wrapper_util::Json::Value::end ( ) const

◆ find()

Value const * nim_cpp_wrapper_util::Json::Value::find	(	char const *	begin,
		char const *	end
	)		const

Most general and efficient version of isMember()const, get()const, and operator[]const

注解: As stated elsewhere, behavior is undefined if (end-begin) >= 2^30

◆ get() [1/4]

Value nim_cpp_wrapper_util::Json::Value::get	(	ArrayIndex	index,
		const Value &	defaultValue
	)		const

If the array contains at least index+1 elements, returns the element value, otherwise returns defaultValue.

◆ get() [2/4]

Value nim_cpp_wrapper_util::Json::Value::get	(	const char *	begin,
		const char *	end,
		const Value &	defaultValue
	)		const

Return the member named key if it exist, defaultValue otherwise.

注解: deep copy; key may contain embedded nulls.

◆ get() [3/4]

Value nim_cpp_wrapper_util::Json::Value::get	(	const char *	key,
		const Value &	defaultValue
	)		const

Return the member named key if it exist, defaultValue otherwise.

注解: deep copy

◆ get() [4/4]

Value nim_cpp_wrapper_util::Json::Value::get	(	const String &	key,
		const Value &	defaultValue
	)		const

Return the member named key if it exist, defaultValue otherwise.

注解: deep copy

参数

key	may contain embedded nulls.

◆ getComment()

String nim_cpp_wrapper_util::Json::Value::getComment ( CommentPlacement placement ) const

Include delimiters and embedded newlines.

◆ getMemberNames()

Value::Members nim_cpp_wrapper_util::Json::Value::getMemberNames ( ) const

Return a list of the member names.

If null, return an empty list.

前置条件: type() is objectValue or nullValue

后置条件: if type() was nullValue, it remains nullValue

◆ getOffsetLimit()

ptrdiff_t nim_cpp_wrapper_util::Json::Value::getOffsetLimit ( ) const

◆ getOffsetStart()

ptrdiff_t nim_cpp_wrapper_util::Json::Value::getOffsetStart ( ) const

◆ getString()

bool nim_cpp_wrapper_util::Json::Value::getString	(	char const **	begin,
		char const **	end
	)		const

Get raw char* of string-value.

返回: false if !string. (Seg-fault if str or end are NULL.)

◆ hasComment()

bool nim_cpp_wrapper_util::Json::Value::hasComment ( CommentPlacement placement ) const

◆ initBasic()

void nim_cpp_wrapper_util::Json::Value::initBasic	(	ValueType	type,
		bool	allocated = `false`
	)

private

◆ insert() [1/2]

bool nim_cpp_wrapper_util::Json::Value::insert	(	ArrayIndex	index,
		const Value &	newValue
	)

Insert value in array at specific index

◆ insert() [2/2]

bool nim_cpp_wrapper_util::Json::Value::insert	(	ArrayIndex	index,
		Value &&	newValue
	)

bool nim_cpp_wrapper_util::Json::Value::isAllocated ( ) const

inlineprivate

◆ isArray()

bool nim_cpp_wrapper_util::Json::Value::isArray ( ) const

◆ isBool()

bool nim_cpp_wrapper_util::Json::Value::isBool ( ) const

◆ isConvertibleTo()

bool nim_cpp_wrapper_util::Json::Value::isConvertibleTo ( ValueType other ) const

◆ isDouble()

bool nim_cpp_wrapper_util::Json::Value::isDouble ( ) const

◆ isInt()

bool nim_cpp_wrapper_util::Json::Value::isInt ( ) const

◆ isInt64()

bool nim_cpp_wrapper_util::Json::Value::isInt64 ( ) const

◆ isIntegral()

bool nim_cpp_wrapper_util::Json::Value::isIntegral ( ) const

◆ isMember() [1/3]

bool nim_cpp_wrapper_util::Json::Value::isMember	(	const char *	begin,
		const char *	end
	)		const

Same as isMember(String const& key)const

◆ isMember() [2/3]

bool nim_cpp_wrapper_util::Json::Value::isMember ( const char * key ) const

Return true if the object has a member named key.

注解: 'key' must be null-terminated.

◆ isMember() [3/3]

bool nim_cpp_wrapper_util::Json::Value::isMember ( const String & key ) const

Return true if the object has a member named key.

参数

key	may contain embedded nulls.

◆ isNull()

bool nim_cpp_wrapper_util::Json::Value::isNull ( ) const

◆ isNumeric()

bool nim_cpp_wrapper_util::Json::Value::isNumeric ( ) const

◆ isObject()

bool nim_cpp_wrapper_util::Json::Value::isObject ( ) const

◆ isString()

bool nim_cpp_wrapper_util::Json::Value::isString ( ) const

◆ isUInt()

bool nim_cpp_wrapper_util::Json::Value::isUInt ( ) const

◆ isUInt64()

bool nim_cpp_wrapper_util::Json::Value::isUInt64 ( ) const

◆ isValidIndex()

bool nim_cpp_wrapper_util::Json::Value::isValidIndex ( ArrayIndex index ) const

Return true if index < size().

◆ nullSingleton()

Value const & nim_cpp_wrapper_util::Json::Value::nullSingleton ( )

static

◆ operator bool()

nim_cpp_wrapper_util::Json::Value::operator bool ( ) const

explicit

Return !isNull()

◆ operator!=()

bool nim_cpp_wrapper_util::Json::Value::operator!= ( const Value & other ) const

◆ operator<()

bool nim_cpp_wrapper_util::Json::Value::operator< ( const Value & other ) const

Compare payload only, not comments etc.

◆ operator<=()

bool nim_cpp_wrapper_util::Json::Value::operator<= ( const Value & other ) const

◆ operator=() [1/2]

Value & nim_cpp_wrapper_util::Json::Value::operator= ( const Value & other )

注解: Overwrite existing comments. To preserve comments, use swapPayload().

◆ operator=() [2/2]

Value & nim_cpp_wrapper_util::Json::Value::operator= ( Value && other )

◆ operator==()

bool nim_cpp_wrapper_util::Json::Value::operator== ( const Value & other ) const

◆ operator>()

bool nim_cpp_wrapper_util::Json::Value::operator> ( const Value & other ) const

◆ operator>=()

bool nim_cpp_wrapper_util::Json::Value::operator>= ( const Value & other ) const

◆ operator[]() [1/9]

Value & nim_cpp_wrapper_util::Json::Value::operator[] ( ArrayIndex index )

Access an array element (zero based index). If the array contains less than index element, then null value are inserted in the array so that its size is index+1. (You may need to say 'value[0u]' to get your compiler to distinguish this from the operator[] which takes a string.)

◆ operator[]() [2/9]

const Value & nim_cpp_wrapper_util::Json::Value::operator[] ( ArrayIndex index ) const

Access an array element (zero based index). (You may need to say 'value[0u]' to get your compiler to distinguish this from the operator[] which takes a string.)

◆ operator[]() [3/9]

Value & nim_cpp_wrapper_util::Json::Value::operator[] ( const char * key )

Access an object value by name, create a null member if it does not exist.

注解: Because of our implementation, keys are limited to 2^30 -1 chars. Exceeding that will cause an exception.

◆ operator[]() [4/9]

const Value & nim_cpp_wrapper_util::Json::Value::operator[] ( const char * key ) const

Access an object value by name, returns null if there is no member with that name.

◆ operator[]() [5/9]

Value & nim_cpp_wrapper_util::Json::Value::operator[] ( const StaticString & key )

Access an object value by name, create a null member if it does not exist.

If the object has no entry for that name, then the member name used to store the new entry is not duplicated. Example of use:

nim_cpp_wrapper_util::Json::Value object;
static const StaticString code("code");
object[code] = 1234;

◆ operator[]() [6/9]

Value & nim_cpp_wrapper_util::Json::Value::operator[] ( const String & key )

Access an object value by name, create a null member if it does not exist.

参数

key	may contain embedded nulls.

◆ operator[]() [7/9]

Value const & nim_cpp_wrapper_util::Json::Value::operator[] ( const String & key ) const

Access an object value by name, returns null if there is no member with that name.

参数

key	may contain embedded nulls.

◆ operator[]() [8/9]

Value & nim_cpp_wrapper_util::Json::Value::operator[] ( int index )

◆ operator[]() [9/9]

const Value & nim_cpp_wrapper_util::Json::Value::operator[] ( int index ) const

◆ releasePayload()

void nim_cpp_wrapper_util::Json::Value::releasePayload ( )

private

◆ removeIndex()

bool nim_cpp_wrapper_util::Json::Value::removeIndex	(	ArrayIndex	index,
		Value *	removed
	)

Remove the indexed array element.

O(n) expensive operations. Update 'removed' iff removed.

返回: true if removed (no exceptions)

◆ removeMember() [1/5]

bool nim_cpp_wrapper_util::Json::Value::removeMember	(	const char *	begin,
		const char *	end,
		Value *	removed
	)

Same as removeMember(String const& key, Value* removed)

◆ removeMember() [2/5]

void nim_cpp_wrapper_util::Json::Value::removeMember ( const char * key )

Remove and return the named member.

Do nothing if it did not exist.

前置条件: type() is objectValue or nullValue

后置条件: type() is unchanged

◆ removeMember() [3/5]

bool nim_cpp_wrapper_util::Json::Value::removeMember	(	const char *	key,
		Value *	removed
	)

Same as removeMember(const char* begin, const char* end, Value* removed), but 'key' is null-terminated.

◆ removeMember() [4/5]

void nim_cpp_wrapper_util::Json::Value::removeMember ( const String & key )

Same as removeMember(const char*)

参数

key	may contain embedded nulls.

◆ removeMember() [5/5]

bool nim_cpp_wrapper_util::Json::Value::removeMember	(	String const &	key,
		Value *	removed
	)

Remove the named map member.

Update 'removed' iff removed.

参数

key	may contain embedded nulls.

返回: true iff removed (no exceptions)

◆ resize()

void nim_cpp_wrapper_util::Json::Value::resize ( ArrayIndex newSize )

Resize the array to newSize elements. New elements are initialized to null. May only be called on nullValue or arrayValue.

前置条件: type() is arrayValue or nullValue

后置条件: type() is arrayValue

◆ resolveReference() [1/2]

Value & nim_cpp_wrapper_util::Json::Value::resolveReference ( const char * key )

private

◆ resolveReference() [2/2]

Value & nim_cpp_wrapper_util::Json::Value::resolveReference	(	const char *	key,
		const char *	end
	)

private

◆ setComment() [1/3]

void nim_cpp_wrapper_util::Json::Value::setComment	(	const char *	comment,
		CommentPlacement	placement
	)

inline

弃用:: Always pass len.

◆ setComment() [2/3]

void nim_cpp_wrapper_util::Json::Value::setComment	(	const char *	comment,
		size_t	len,
		CommentPlacement	placement
	)

inline

Comments must be //... or /* ... *‍/

◆ setComment() [3/3]

void nim_cpp_wrapper_util::Json::Value::setComment	(	String	comment,
		CommentPlacement	placement
	)

Comments must be //... or /* ... *‍/

◆ setIsAllocated()

void nim_cpp_wrapper_util::Json::Value::setIsAllocated ( bool v )

inlineprivate

◆ setOffsetLimit()

void nim_cpp_wrapper_util::Json::Value::setOffsetLimit ( ptrdiff_t limit )

◆ setOffsetStart()

void nim_cpp_wrapper_util::Json::Value::setOffsetStart ( ptrdiff_t start )

◆ setType()

void nim_cpp_wrapper_util::Json::Value::setType ( ValueType v )

inlineprivate

◆ size()

ArrayIndex nim_cpp_wrapper_util::Json::Value::size ( ) const

Number of values in array or object

◆ swap()

void nim_cpp_wrapper_util::Json::Value::swap ( Value & other )

Swap everything.

◆ swapPayload()

void nim_cpp_wrapper_util::Json::Value::swapPayload ( Value & other )

Swap values but leave comments and source offsets in place.

◆ toStyledString()

String nim_cpp_wrapper_util::Json::Value::toStyledString ( ) const

◆ type()

ValueType nim_cpp_wrapper_util::Json::Value::type ( ) const

友元及相关函数文档

◆ ValueIteratorBase

friend class ValueIteratorBase

friend

类成员变量说明

Maximum signed 64 bits int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

◆ maxLargestInt

constexpr LargestInt nim_cpp_wrapper_util::Json::Value::maxLargestInt = LargestInt(LargestUInt(-1) / 2)

staticconstexpr

Maximum signed integer value that can be stored in a nim_cpp_wrapper_util::Json::Value.

◆ maxLargestUInt

constexpr LargestUInt nim_cpp_wrapper_util::Json::Value::maxLargestUInt = LargestUInt(-1)

staticconstexpr

Maximum unsigned integer value that can be stored in a nim_cpp_wrapper_util::Json::Value.

◆ maxUInt

constexpr UInt nim_cpp_wrapper_util::Json::Value::maxUInt = UInt(-1)

staticconstexpr

Maximum unsigned int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

◆ maxUInt64

constexpr UInt64 nim_cpp_wrapper_util::Json::Value::maxUInt64 = UInt64(-1)

staticconstexpr

Maximum unsigned 64 bits int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

◆ maxUInt64AsDouble

constexpr double nim_cpp_wrapper_util::Json::Value::maxUInt64AsDouble = 18446744073709551615.0

staticconstexpr

◆ minInt

constexpr Int nim_cpp_wrapper_util::Json::Value::minInt = Int(~(UInt(-1) / 2))

staticconstexpr

Minimum signed int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

◆ minInt64

constexpr Int64 nim_cpp_wrapper_util::Json::Value::minInt64 = Int64(~(UInt64(-1) / 2))

staticconstexpr

Minimum signed 64 bits int value that can be stored in a nim_cpp_wrapper_util::Json::Value.

◆ minLargestInt

constexpr LargestInt nim_cpp_wrapper_util::Json::Value::minLargestInt = LargestInt(~(LargestUInt(-1) / 2))

staticconstexpr

Minimum signed integer value that can be stored in a nim_cpp_wrapper_util::Json::Value.

◆ null

const Value& nim_cpp_wrapper_util::Json::Value::null

static

◆ nullRef

const Value& nim_cpp_wrapper_util::Json::Value::nullRef

static

◆ start_

ptrdiff_t nim_cpp_wrapper_util::Json::Value::start_

private

◆ value_

union nim_cpp_wrapper_util::Json::Value::ValueHolder nim_cpp_wrapper_util::Json::Value::value_

private

◆ value_type_

unsigned int nim_cpp_wrapper_util::Json::Value::value_type_

该类的文档由以下文件生成:

G:/GitLab/builds/DfutquoE/0/nim-pc/california/nim-cross-platform-sdk/exports/wrapper/nim_wrapper_util/json/value.h
G:/GitLab/builds/DfutquoE/0/nim-pc/california/nim-cross-platform-sdk/exports/wrapper/nim_wrapper_util/json_value.cpp

类

Public 类型

Public 成员函数

静态 Public 成员函数

静态 Public 属性

Private 成员函数

Private 属性

友元

详细描述

成员类型定义说明

◆ ArrayIndex

◆ const_iterator

◆ Int

◆ Int64

◆ iterator

◆ LargestInt

◆ LargestUInt

◆ Members

◆ ObjectValues

◆ UInt

◆ UInt64

◆ value_type

构造及析构函数说明

◆ Value() [1/14]

◆ Value() [2/14]

◆ Value() [3/14]

◆ Value() [4/14]

◆ Value() [5/14]

◆ Value() [6/14]

◆ Value() [7/14]

◆ Value() [8/14]

◆ Value() [9/14]

◆ Value() [10/14]

◆ Value() [11/14]

◆ Value() [12/14]

◆ Value() [13/14]

◆ Value() [14/14]

◆ ~Value()

成员函数说明

◆ append() [1/2]

◆ append() [2/2]

◆ as() [1/10]

◆ as() [2/10]

◆ as() [3/10]

◆ as() [4/10]

◆ as() [5/10]

◆ as() [6/10]

◆ as() [7/10]

◆ as() [8/10]

◆ as() [9/10]

◆ as() [10/10]

◆ asBool()

◆ asCString()

◆ asDouble()

◆ asFloat()

◆ asInt()

◆ asInt64()

◆ asLargestInt()

◆ asLargestUInt()

◆ asString()

◆ asUInt()

◆ asUInt64()

◆ begin() [1/2]

◆ begin() [2/2]

◆ clear()

◆ compare()

◆ copy()

◆ copyPayload()

◆ demand()

◆ dupMeta()

◆ dupPayload()

◆ empty()

◆ end() [1/2]

◆ end() [2/2]

◆ find()

◆ get() [1/4]

◆ get() [2/4]

◆ get() [3/4]

◆ get() [4/4]

◆ getComment()