crow::json::wvalue Class Reference

JSON write value. More...

#include <json.h>

Inheritance diagram for crow::json::wvalue:

Public Types
using	object = detail::object_policy::object_type< wvalue >
using	list = std::vector< wvalue >

Public Member Functions
type	t () const
	wvalue (std::nullptr_t)
	wvalue (bool value)
	wvalue (std::uint8_t value)
	wvalue (std::uint16_t value)
	wvalue (std::uint32_t value)
	wvalue (std::uint64_t value)
	wvalue (std::int8_t value)
	wvalue (std::int16_t value)
	wvalue (std::int32_t value)
	wvalue (std::int64_t value)
	wvalue (float value)
	wvalue (double value)
	wvalue (char const *value)
	wvalue (std::string const &value)
	wvalue (std::string &&value)
	wvalue (std::initializer_list< std::pair< std::string const, wvalue > > initializer_list)
	wvalue (object const &value)
	wvalue (object &&value)
	wvalue (const list &r)
	wvalue (list &r)
	wvalue (const rvalue &r)
	Create a write value from a read value (useful for editing JSON strings).
	wvalue (const wvalue &r)
	wvalue (wvalue &&r)
wvalue &	operator= (wvalue &&r)
void	clear ()
	Used for compatibility, same as reset()
void	reset ()
wvalue &	operator= (std::nullptr_t)
wvalue &	operator= (bool value)
wvalue &	operator= (float value)
wvalue &	operator= (double value)
wvalue &	operator= (unsigned short value)
wvalue &	operator= (short value)
wvalue &	operator= (long long value)
wvalue &	operator= (long value)
wvalue &	operator= (int value)
wvalue &	operator= (unsigned long long value)
wvalue &	operator= (unsigned long value)
wvalue &	operator= (unsigned int value)
wvalue &	operator= (const char *str)
wvalue &	operator= (const std::string &str)
wvalue &	operator= (list &&v)
template<typename T >
wvalue &	operator= (const std::vector< T > &v)
wvalue &	operator= (std::initializer_list< std::pair< std::string const, wvalue > > initializer_list)
wvalue &	operator= (object const &value)
wvalue &	operator= (object &&value)
wvalue &	operator= (std::function< std::string(std::string &)> &&func)
wvalue &	operator[] (unsigned index)
const wvalue &	operator[] (unsigned index) const
bool	has (const char *key) const
	Check if the object contains the given key.
bool	has (const std::string &key) const
	Check if the object contains the given key.
size_t	count (const std::string &str) const
wvalue &	operator[] (const std::string &str)
const wvalue &	operator[] (const std::string &str) const
std::vector< std::string >	keys () const
std::string	execute (std::string txt="") const
std::size_t	size () const
	If the wvalue is a list, it returns the length of the list, otherwise it returns 1.
size_t	estimate_length () const
	Returns an estimated size of the value in bytes.
std::string	dump (const size_t indent, const char separator=' ') const
std::string	dump () const override
	operator std::string () const
	Return json string.
Public Member Functions inherited from crow::returnable
	returnable (std::string ctype)

Static Public Member Functions
static crow::json::wvalue	empty_object ()
	Create an empty json value (outputs "{}" instead of a "null" string)

Friends
class	crow::mustache::template_t
struct	wvalue_reader

Additional Inherited Members
Public Attributes inherited from crow::returnable
std::string	content_type

Detailed Description

JSON write value.

Value can mean any json value, including a JSON object.
Write means this class is used to primarily assemble JSON objects using keys and values and export those into a string. The object container is selected at compile time. By default, object keys use an std::unordered_map; CROW_JSON_USE_MAP selects lexicographically sorted keys, while CROW_JSON_USE_INSERTION_ORDER preserves the order of newly inserted keys. Updating an existing key does not change its position. These options affect the order of serialized JSON object keys and cannot be used together.

Member Function Documentation

dump()

std::string crow::json::wvalue::dump ( ) const

inlineoverridevirtual

Implements crow::returnable.

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

• include/crow/json.h