cleanup code

This commit is contained in:
Sean Middleditch 2010-01-16 20:15:33 -08:00
parent 2dc2b6bab7
commit cc06bc334a
3 changed files with 510 additions and 251 deletions

View File

@ -3,7 +3,7 @@ JANSSON_LIBS := $(shell pkg-config --libs jansson)
all: test
test-bin: test.cc janssonxx.h Makefile
test-bin: test.cc janssonxx.h janssonxx.tcc Makefile
$(CXX) -o $@ -g -O0 -Wall $(JANSSON_CFLAGS) $< $(JANSSON_LIBS)
test: test-bin

View File

@ -16,12 +16,13 @@
#include <cstdlib>
namespace jansson {
// include in the jansson namespace
# include <jansson.h>
// include Jansson C library in the jansson namespace
#include <jansson.h>
class Iterator;
class Value;
// implementation details; do not use directly
namespace _private {
class ElementProxy;
class PropertyProxy;
@ -40,20 +41,20 @@ namespace jansson {
ValueBase(json_t* json) : _Base(json) {}
// assignment operator
ValueBase& operator=(const Value& value) { _Base::operator=(value); return *this; }
inline ValueBase& operator=(const Value& value);
// check value type
bool is_undefined() const { return _Base::as_json() == 0; }
bool is_object() const { return json_is_object(_Base::as_json()); }
bool is_array() const { return json_is_array(_Base::as_json()); }
bool is_string() const { return json_is_string(_Base::as_json()); }
bool is_integer() const { return json_is_integer(_Base::as_json()); }
bool is_real() const { return json_is_real(_Base::as_json()); }
bool is_number() const { return json_is_number(_Base::as_json()); }
bool is_true() const { return json_is_true(_Base::as_json()); }
bool is_false() const { return json_is_false(_Base::as_json()); }
bool is_boolean() const { return json_is_boolean(_Base::as_json()); }
bool is_null() const { return json_is_null(_Base::as_json()); }
inline bool is_undefined() const;
inline bool is_object() const;
inline bool is_array() const;
inline bool is_string() const;
inline bool is_integer() const;
inline bool is_real() const;
inline bool is_number() const;
inline bool is_true() const;
inline bool is_false() const;
inline bool is_boolean() const;
inline bool is_null() const;
// get size of array or object
inline unsigned int size() const;
@ -121,6 +122,12 @@ namespace jansson {
// insert an item into an array at a given index
inline _Base& insert_at(unsigned int index, const Value& value);
// write the value to a file
inline int save_file(const char* path, int flags = 0) const;
// write the value to a string (caller must deallocate with free()!)
inline char* save_string(int flags = 0) const;
};
// represents any JSON value, private base
@ -136,27 +143,17 @@ namespace jansson {
explicit Basic(json_t* value) : _value(json_incref(value)) {}
// free Value resources
~Basic() { json_decref(_value); }
inline ~Basic();
// copy an existing Value
Basic& operator=(const Basic& e) {
if (&e != this) {
json_decref(_value);
_value = json_incref(e._value);
}
return *this;
}
inline Basic& operator=(const Basic& e);
// get the underlying json_t
json_t* as_json() const { return _value; }
inline json_t* as_json() const;
protected:
// take ownership of a json_t (does not increase reference count)
static Basic _take(json_t* json) {
Basic v;
v._value = json;
return v;
}
static inline Basic _take(json_t* json);
private:
// internal value pointer
@ -173,7 +170,7 @@ namespace jansson {
inline ElementProxy& operator=(const Value& value);
// get the proxied element
json_t* as_json() const { return json_array_get(_array, _index); }
inline json_t* as_json() const;
private:
// array object we wrap
@ -193,7 +190,7 @@ namespace jansson {
inline PropertyProxy& operator=(const Value& value);
// get the proxied element
json_t* as_json() const { return json_object_get(_object, _key); }
inline json_t* as_json() const;
private:
// array object we wrap
@ -224,86 +221,63 @@ namespace jansson {
explicit Value(json_t* json) : _private::ValueBase<_private::Basic>(json) {}
// construct Value from input
static inline Value from(const char* value) { return Value::_take(json_string(value)); }
static inline Value from(const std::string& value) { return from(value.c_str()); }
static inline Value from(bool value) { return Value::_take(value ? json_true() : json_false()); }
static inline Value from(signed int value) { return Value::_take(json_integer(value)); }
static inline Value from(unsigned int value) { return Value::_take(json_integer(value)); }
static inline Value from(signed short value) { return Value::_take(json_integer(value)); }
static inline Value from(unsigned short value) { return Value::_take(json_integer(value)); }
static inline Value from(signed long value) { return Value::_take(json_integer(value)); }
static inline Value from(unsigned long value) { return Value::_take(json_integer(value)); }
static inline Value from(float value) { return Value::_take(json_real(value)); }
static inline Value from(double value) { return Value::_take(json_real(value)); }
static inline Value from(const char* value);
static inline Value from(const std::string& value);
static inline Value from(bool value);
static inline Value from(signed int value);
static inline Value from(unsigned int value);
static inline Value from(signed short value);
static inline Value from(unsigned short value);
static inline Value from(signed long value);
static inline Value from(unsigned long value);
static inline Value from(float value);
static inline Value from(double value);
// create a new empty object
static inline Value object() { return Value::_take(json_object()); }
static inline Value object();
// create a new empty array
static inline Value array() { return Value::_take(json_array()); }
static inline Value array();
// create a new null value
static inline Value null() { return Value::_take(json_null()); }
static inline Value null();
// load a file as a JSON value
static Value load_file(const char* path, json_error_t* error = 0) {
return Value::_take(json_load_file(path, error));
}
static inline Value load_file(const char* path, json_error_t* error = 0);
// load a string as a JSON value
static Value load_string(const char* string, json_error_t* error = 0) {
return Value::_take(json_loads(string, error));
}
// write the value to a file
int save_file(const char* path, int flags = 0) const {
return json_dump_file(as_json(), path, flags);
}
// write the value to a string (caller must deallocate with free()!)
char* save_string(int flags = 0) const {
return json_dumps(as_json(), flags);
}
static inline Value load_string(const char* string, json_error_t* error = 0);
};
// iterators over a JSON object
class Iterator {
public:
// construct a new iterator for a given object
Iterator(const Value& value) : _object(value), _iter(0) {
_iter = json_object_iter(_object.as_json());
}
inline Iterator(const Value& value);
// construct a new iterator for a given object
Iterator(const _private::ValueBase<_private::PropertyProxy>& value) : _object(value.as_json()), _iter(0) {
_iter = json_object_iter(_object.as_json());
}
inline Iterator(const _private::ValueBase<_private::PropertyProxy>& value);
// increment iterator
void next() {
_iter = json_object_iter_next(_object.as_json(), _iter);
}
inline void next();
Iterator& operator++() { next(); return *this; }
inline Iterator& operator++();
// test if iterator is still valid
bool valid() const { return _iter != 0; }
operator bool() const { return valid(); }
inline bool valid() const;
inline operator bool() const;
// get key
const char* ckey() const {
return json_object_iter_key(_iter);
}
inline const char* ckey() const;
std::string key() const { return ckey(); }
inline std::string key() const;
// get value
const Value value() const {
return Value(json_object_iter_value(_iter));
}
inline const Value value() const;
// dereference value
const Value operator*() const { return value(); }
inline const Value operator*() const;
private:
// disallow copying
@ -320,23 +294,10 @@ namespace jansson {
} // namespace jansson
// stream JSON value out
std::ostream& operator<<(std::ostream& os, const jansson::Value& value) {
char* tmp = value.save_string();
if (tmp != 0) {
os << tmp;
free(tmp);
}
return os;
}
inline std::ostream& operator<<(std::ostream& os, const jansson::Value& value);
// read JSON value
std::istream& operator>>(std::istream& is, jansson::Value& value) {
std::stringstream tmp;
while (is)
tmp << static_cast<char>(is.get());
value = jansson::Value::load_string(tmp.str().c_str());
return is;
}
inline std::istream& operator>>(std::istream& is, jansson::Value& value);
#include "janssonxx.tcc"

View File

@ -1,158 +1,456 @@
// get size of array or object
template <typename _Base>
unsigned int jansson::_private::ValueBase<_Base>::size() const {
if (is_object())
return json_object_size(_Base::as_json());
else
return json_array_size(_Base::as_json());
namespace jansson {
namespace _private {
// assignment operator
template <typename _Base>
ValueBase<_Base>& ValueBase<_Base>::operator=(const Value& value) {
_Base::operator=(value);
return *this;
}
// check value type
template <typename _Base>
bool ValueBase<_Base>::is_undefined() const {
return _Base::as_json() == 0;
}
template <typename _Base>
bool ValueBase<_Base>::is_object() const {
return json_is_object(_Base::as_json());
}
template <typename _Base>
bool ValueBase<_Base>::is_array() const {
return json_is_array(_Base::as_json());
}
template <typename _Base>
bool ValueBase<_Base>::is_string() const {
return json_is_string(_Base::as_json());
}
template <typename _Base>
bool ValueBase<_Base>::is_integer() const {
return json_is_integer(_Base::as_json());
}
template <typename _Base>
bool ValueBase<_Base>::is_real() const {
return json_is_real(_Base::as_json());
}
template <typename _Base>
bool ValueBase<_Base>::is_number() const {
return json_is_number(_Base::as_json());
}
template <typename _Base>
bool ValueBase<_Base>::is_true() const {
return json_is_true(_Base::as_json());
}
template <typename _Base>
bool ValueBase<_Base>::is_false() const {
return json_is_false(_Base::as_json());
}
template <typename _Base>
bool ValueBase<_Base>::is_boolean() const {
return json_is_boolean(_Base::as_json());
}
template <typename _Base>
bool ValueBase<_Base>::is_null() const {
return json_is_null(_Base::as_json());
}
// get size of array or object
template <typename _Base>
unsigned int ValueBase<_Base>::size() const {
if (is_object())
return json_object_size(_Base::as_json());
else
return json_array_size(_Base::as_json());
}
// get value at array index (const version)
template <typename _Base>
const Value ValueBase<_Base>::at(unsigned int index) const {
return Value(json_array_get(_Base::as_json(), index));
}
template <typename _Base>
const Value ValueBase<_Base>::operator[](signed int index) const { return at(index); }
template <typename _Base>
const Value ValueBase<_Base>::operator[](unsigned int index) const { return at(index); }
template <typename _Base>
const Value ValueBase<_Base>::operator[](signed short index) const { return at(index); }
template <typename _Base>
const Value ValueBase<_Base>::operator[](unsigned short index) const { return at(index); }
template <typename _Base>
const Value ValueBase<_Base>::operator[](signed long index) const { return at(index); }
template <typename _Base>
const Value ValueBase<_Base>::operator[](unsigned long index) const { return at(index); }
// get value at array index (non-const version)
template <typename _Base>
ValueBase<ElementProxy> ValueBase<_Base>::at(unsigned int index) {
return ElementProxy(_Base::as_json(), index);
}
template <typename _Base>
ValueBase<ElementProxy> ValueBase<_Base>::operator[](signed int index) {
return at(index);
}
template <typename _Base>
ValueBase<ElementProxy> ValueBase<_Base>::operator[](unsigned int index) {
return at(index);
}
template <typename _Base>
ValueBase<ElementProxy> ValueBase<_Base>::operator[](signed short index) {
return at(index);
}
template <typename _Base>
ValueBase<ElementProxy> ValueBase<_Base>::operator[](unsigned short index) {
return at(index);
}
template <typename _Base>
ValueBase<ElementProxy> ValueBase<_Base>::operator[](signed long index) {
return at(index);
}
template <typename _Base>
ValueBase<ElementProxy> ValueBase<_Base>::operator[](unsigned long index) {
return at(index);
}
// get object property (const version)
template <typename _Base>
const Value ValueBase<_Base>::get(const char* key) const {
return Value(json_object_get(_Base::as_json(), key));
}
template <typename _Base>
const Value ValueBase<_Base>::get(const std::string& key) const {
return get(key.c_str());
}
template <typename _Base>
const Value ValueBase<_Base>::operator[](const char* key) const {
return get(key);
}
template <typename _Base>
const Value ValueBase<_Base>::operator[](const std::string& key) const {
return get(key.c_str());
}
// get object property (non-const version)
template <typename _Base>
ValueBase<PropertyProxy> ValueBase<_Base>::get(const char* key) {
return PropertyProxy(_Base::as_json(), key);
}
template <typename _Base>
ValueBase<PropertyProxy> ValueBase<_Base>::get(const std::string& key) {
return get(key.c_str());
}
template <typename _Base>
ValueBase<PropertyProxy> ValueBase<_Base>::operator[](const char* key) {
return get(key);
}
template <typename _Base>
ValueBase<PropertyProxy> ValueBase<_Base>::operator[](const std::string& key) {
return get(key.c_str());
}
// clear all array/object values
template <typename _Base>
void ValueBase<_Base>::clear() {
if (is_object())
json_object_clear(_Base::as_json());
else
json_array_clear(_Base::as_json());
}
// get value cast to specified type
template <typename _Base>
const char* ValueBase<_Base>::as_cstring() const {
return json_string_value(_Base::as_json());
}
template <typename _Base>
std::string ValueBase<_Base>::as_string() const {
const char* tmp = as_cstring();
return tmp == 0 ? "" : tmp;
}
template <typename _Base>
int ValueBase<_Base>::as_integer() const {
return json_integer_value(_Base::as_json());
}
template <typename _Base>
double ValueBase<_Base>::as_real() const {
return json_real_value(_Base::as_json());
}
template <typename _Base>
double ValueBase<_Base>::as_number() const {
return json_number_value(_Base::as_json());
}
template <typename _Base>
bool ValueBase<_Base>::as_boolean() const {
return is_true();
}
// set an object property (converts value to object is not one already)
template <typename _Base>
_Base& ValueBase<_Base>::set_key(const char* key, const Value& value) {
json_object_set(_Base::as_json(), key, value._Base::as_json());
return *this;
}
template <typename _Base>
_Base& ValueBase<_Base>::set_key(const std::string& key, const Value& value) {
return set_key(key.c_str(), value);
}
// set an array index (converts value to object is not one already)
template <typename _Base>
_Base& ValueBase<_Base>::set_at(unsigned int index, const Value& value) {
if (index == size())
json_array_append(_Base::as_json(), value._Base::as_json());
else
json_array_set(_Base::as_json(), index, value._Base::as_json());
return *this;
}
// delete an object key
template <typename _Base>
_Base& ValueBase<_Base>::del_key(const char* key) {
json_object_del(_Base::as_json(), key);
return *this;
}
template <typename _Base>
_Base& ValueBase<_Base>::del_key(const std::string& key) {
return del_key(key.c_str());
}
// delete an item from an array by index
template <typename _Base>
_Base& ValueBase<_Base>::del_at(unsigned int index) {
json_array_remove(_Base::as_json(), index);
return *this;
}
// insert an item into an array at a given index
template <typename _Base>
_Base& ValueBase<_Base>::insert_at(unsigned int index, const Value& value) {
json_array_insert(_Base::as_json(), index, value._Base::as_json());
return *this;
}
// write the value to a file
template <typename _Base>
int ValueBase<_Base>::save_file(const char* path, int flags) const {
return json_dump_file(_Base::as_json(), path, flags);
}
// write the value to a string (caller must deallocate with free()!)
template <typename _Base>
char* ValueBase<_Base>::save_string(int flags) const {
return json_dumps(_Base::as_json(), flags);
}
Basic::~Basic() {
json_decref(_value);
}
// copy an existing Value
Basic& Basic::operator=(const Basic& e) {
if (&e != this) {
json_decref(_value);
_value = json_incref(e._value);
}
return *this;
}
// get the underlying json_t
json_t* Basic::as_json() const {
return _value;
}
// take ownership of a json_t (does not increase reference count)
Basic Basic::_take(json_t* json) {
Basic v;
v._value = json;
return v;
}
// assign value to proxied array element
ElementProxy& ElementProxy::operator=(const Value& value) {
json_array_set(_array, _index, value.as_json());
return *this;
}
// get the proxied element
json_t* ElementProxy::as_json() const {
return json_array_get(_array, _index);
}
// assign value to proxied object property
PropertyProxy& PropertyProxy::operator=(const Value& value) {
json_object_set(_object, _key, value.as_json());
return *this;
}
json_t* PropertyProxy::as_json() const {
return json_object_get(_object, _key);
}
} // namespace jansson::_private
// construct Value from input
Value Value::from(const char* value) {
return Value::_take(json_string(value));
}
Value Value::from(const std::string& value) {
return Value::from(value.c_str());
}
Value Value::from(bool value) {
return Value::_take(value ? json_true() : json_false());
}
Value Value::from(signed int value) {
return Value::_take(json_integer(value));
}
Value Value::from(unsigned int value) {
return Value::_take(json_integer(value));
}
Value Value::from(signed short value) {
return Value::_take(json_integer(value));
}
Value Value::from(unsigned short value) {
return Value::_take(json_integer(value));
}
Value Value::from(signed long value) {
return Value::_take(json_integer(value));
}
Value Value::from(unsigned long value) {
return Value::_take(json_integer(value));
}
Value Value::from(float value) {
return Value::_take(json_real(value));
}
Value Value::from(double value) {
return Value::_take(json_real(value));
}
// create a new empty object
Value Value::object() {
return Value::_take(json_object());
}
// create a new empty array
Value Value::array() {
return Value::_take(json_array());
}
// create a new null value
Value Value::null() {
return Value::_take(json_null());
}
// load a file as a JSON value
Value Value::load_file(const char* path, json_error_t* error) {
return Value::_take(json_load_file(path, error));
}
// load a string as a JSON value
Value Value::load_string(const char* string, json_error_t* error) {
return Value::_take(json_loads(string, error));
}
// construct a new iterator for a given object
Iterator::Iterator(const Value& value) : _object(value), _iter(0) {
_iter = json_object_iter(_object.as_json());
}
// construct a new iterator for a given object
Iterator::Iterator(const _private::ValueBase<_private::PropertyProxy>& value) :
_object(value.as_json()), _iter(0) {
_iter = json_object_iter(_object.as_json());
}
// increment iterator
void Iterator::next() {
_iter = json_object_iter_next(_object.as_json(), _iter);
}
Iterator& Iterator::operator++() { next(); return *this; }
// test if iterator is still valid
bool Iterator::valid() const {
return _iter != 0;
}
Iterator::operator bool() const {
return valid();
}
// get key
const char* Iterator::ckey() const {
return json_object_iter_key(_iter);
}
std::string Iterator::key() const {
return ckey();
}
// get value
const Value Iterator::value() const {
return Value(json_object_iter_value(_iter));
}
// dereference value
const Value Iterator::operator*() const {
return value();
}
} // namespace jansson
// stream JSON value out
std::ostream& operator<<(std::ostream& os, const jansson::Value& value) {
char* tmp = value.save_string();
if (tmp != 0) {
os << tmp;
free(tmp);
}
return os;
}
// get value at array index (const version)
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::at(unsigned int index) const {
return jansson::Value(json_array_get(_Base::as_json(), index));
}
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::operator[](signed int index) const { return at(index); }
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::operator[](unsigned int index) const { return at(index); }
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::operator[](signed short index) const { return at(index); }
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::operator[](unsigned short index) const { return at(index); }
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::operator[](signed long index) const { return at(index); }
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::operator[](unsigned long index) const { return at(index); }
// get value at array index (non-const version)
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::ElementProxy> jansson::_private::ValueBase<_Base>::at(unsigned int index) {
return ElementProxy(_Base::as_json(), index);
}
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::ElementProxy> jansson::_private::ValueBase<_Base>::operator[](signed int index) { return at(index); }
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::ElementProxy> jansson::_private::ValueBase<_Base>::operator[](unsigned int index) { return at(index); }
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::ElementProxy> jansson::_private::ValueBase<_Base>::operator[](signed short index) { return at(index); }
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::ElementProxy> jansson::_private::ValueBase<_Base>::operator[](unsigned short index) { return at(index); }
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::ElementProxy> jansson::_private::ValueBase<_Base>::operator[](signed long index) { return at(index); }
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::ElementProxy> jansson::_private::ValueBase<_Base>::operator[](unsigned long index) { return at(index); }
// get object property (const version)
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::get(const char* key) const {
return jansson::Value(json_object_get(_Base::as_json(), key));
}
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::get(const std::string& key) const { return get(key.c_str()); }
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::operator[](const char* key) const { return get(key); }
template <typename _Base>
const jansson::Value jansson::_private::ValueBase<_Base>::operator[](const std::string& key) const { return get(key.c_str()); }
// get object property (non-const version)
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::PropertyProxy> jansson::_private::ValueBase<_Base>::get(const char* key) {
return PropertyProxy(_Base::as_json(), key);
}
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::PropertyProxy> jansson::_private::ValueBase<_Base>::get(const std::string& key) { return get(key.c_str()); }
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::PropertyProxy> jansson::_private::ValueBase<_Base>::operator[](const char* key) { return get(key); }
template <typename _Base>
jansson::_private::ValueBase<jansson::_private::PropertyProxy> jansson::_private::ValueBase<_Base>::operator[](const std::string& key) { return get(key.c_str()); }
// clear all array/object values
template <typename _Base>
void jansson::_private::ValueBase<_Base>::clear() {
if (is_object())
json_object_clear(_Base::as_json());
else
json_array_clear(_Base::as_json());
}
// get value cast to specified type
template <typename _Base>
const char* jansson::_private::ValueBase<_Base>::as_cstring() const { return json_string_value(_Base::as_json()); }
template <typename _Base>
std::string jansson::_private::ValueBase<_Base>::as_string() const {
const char* tmp = as_cstring();
return tmp == 0 ? "" : tmp;
}
template <typename _Base>
int jansson::_private::ValueBase<_Base>::as_integer() const { return json_integer_value(_Base::as_json()); }
template <typename _Base>
double jansson::_private::ValueBase<_Base>::as_real() const { return json_real_value(_Base::as_json()); }
template <typename _Base>
double jansson::_private::ValueBase<_Base>::as_number() const { return json_number_value(_Base::as_json()); }
template <typename _Base>
bool jansson::_private::ValueBase<_Base>::as_boolean() const { return is_true(); }
// set an object property (converts value to object is not one already)
template <typename _Base>
_Base& jansson::_private::ValueBase<_Base>::set_key(const char* key, const jansson::Value& value) {
json_object_set(_Base::as_json(), key, value._Base::as_json());
return *this;
}
template <typename _Base>
_Base& jansson::_private::ValueBase<_Base>::set_key(const std::string& key, const jansson::Value& value) {
return set_key(key.c_str(), value);
}
// set an array index (converts value to object is not one already)
template <typename _Base>
_Base& jansson::_private::ValueBase<_Base>::set_at(unsigned int index, const jansson::Value& value) {
if (index == size())
json_array_append(_Base::as_json(), value._Base::as_json());
else
json_array_set(_Base::as_json(), index, value._Base::as_json());
return *this;
}
// delete an object key
template <typename _Base>
_Base& jansson::_private::ValueBase<_Base>::del_key(const char* key) {
json_object_del(_Base::as_json(), key);
return *this;
}
template <typename _Base>
_Base& jansson::_private::ValueBase<_Base>::del_key(const std::string& key) {
return del_key(key.c_str());
}
// delete an item from an array by index
template <typename _Base>
_Base& jansson::_private::ValueBase<_Base>::del_at(unsigned int index) {
json_array_remove(_Base::as_json(), index);
return *this;
}
// insert an item into an array at a given index
template <typename _Base>
_Base& jansson::_private::ValueBase<_Base>::insert_at(unsigned int index, const jansson::Value& value) {
json_array_insert(_Base::as_json(), index, value._Base::as_json());
return *this;
}
// assign value to proxied array element
jansson::_private::ElementProxy& jansson::_private::ElementProxy::operator=(const Value& value) {
json_array_set(_array, _index, value.as_json());
return *this;
}
// assign value to proxied object property
jansson::_private::PropertyProxy& jansson::_private::PropertyProxy::operator=(const Value& value) {
json_object_set(_object, _key, value.as_json());
return *this;
// read JSON value
std::istream& operator>>(std::istream& is, jansson::Value& value) {
std::stringstream tmp;
while (is)
tmp << static_cast<char>(is.get());
value = jansson::Value::load_string(tmp.str().c_str());
return is;
}