1 #ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H
3 #ifndef SIMDJSON_CONDITIONAL_INCLUDE
4 #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H
5 #include "simdjson/generic/ondemand/base.h"
6 #include "simdjson/generic/ondemand/json_iterator.h"
7 #include "simdjson/generic/ondemand/deserialize.h"
8 #include "simdjson/generic/ondemand/value.h"
13 namespace SIMDJSON_IMPLEMENTATION {
33 simdjson_inline
document &operator=(const
document &other) noexcept = delete;
119 template <typename string_type>
120 simdjson_inline
error_code get_string(string_type& receiver,
bool allow_replacement = false) noexcept;
184 template <typename T>
186 #if SIMDJSON_SUPPORTS_DESERIALIZATION
187 noexcept(custom_deserializable<T, document> ? nothrow_custom_deserializable<T, document> :
true)
192 static_assert(std::is_default_constructible<T>::value,
"Cannot initialize the specified type.");
194 SIMDJSON_TRY(get<T>(out));
209 #if SIMDJSON_SUPPORTS_DESERIALIZATION
210 noexcept(custom_deserializable<T, document> ? nothrow_custom_deserializable<T, document> :
true)
215 static_assert(!std::is_same<T, array>::value && !std::is_same<T, object>::value,
"You should never hold either an ondemand::array or ondemand::object without a corresponding ondemand::document being alive; that would be Undefined Behaviour.");
232 #if SIMDJSON_SUPPORTS_DESERIALIZATION
233 noexcept(custom_deserializable<T, document> ? nothrow_custom_deserializable<T, document> :
true)
238 #if SIMDJSON_SUPPORTS_DESERIALIZATION
239 if constexpr (custom_deserializable<T, document>) {
240 return deserialize(*
this, out);
245 static_assert(!
sizeof(T),
"The get method with given type is not implemented by the simdjson library. "
246 "The supported types are ondemand::object, ondemand::array, raw_json_string, std::string_view, uint64_t, "
247 "int64_t, double, and bool. We recommend you use get_double(), get_bool(), get_uint64(), get_int64(), "
248 " get_object(), get_array(), get_raw_json_string(), or get_string() instead of the get template."
249 " You may also add support for custom types, see our documentation.");
250 static_cast<void>(out);
252 #if SIMDJSON_SUPPORTS_DESERIALIZATION
257 template<
typename T> simdjson_deprecated simdjson_inline
error_code get(T &out) && noexcept;
259 #if SIMDJSON_EXCEPTIONS
270 explicit simdjson_inline
operator T() & noexcept(
false);
272 explicit simdjson_deprecated simdjson_inline
operator T() && noexcept(
false);
280 simdjson_inline
operator array() & noexcept(
false);
287 simdjson_inline
operator object() & noexcept(
false);
294 simdjson_inline
operator uint64_t() noexcept(false);
301 simdjson_inline operator int64_t() noexcept(false);
308 simdjson_inline operator
double() noexcept(false);
318 simdjson_inline operator std::string_view() noexcept(false);
334 simdjson_inline operator
bool() noexcept(false);
346 simdjson_inline operator
value() noexcept(false);
601 inline
void rewind() noexcept;
622 inline
bool at_end() const noexcept;
711 simdjson_inline
document(ondemand::json_iterator &&
iter) noexcept;
712 simdjson_inline const uint8_t *text(uint32_t idx) const noexcept;
714 simdjson_inline value_iterator resume_value_iterator() noexcept;
715 simdjson_inline value_iterator get_root_value_iterator() noexcept;
716 simdjson_inline
simdjson_result<
object> start_or_resume_object() noexcept;
717 static simdjson_inline
document start(ondemand::json_iterator &&
iter) noexcept;
727 friend class ondemand::parser;
751 simdjson_inline
void rewind() noexcept;
761 template <
typename string_type>
762 simdjson_inline
error_code get_string(string_type& receiver,
bool allow_replacement =
false) noexcept;
769 template <
typename T>
771 #if SIMDJSON_SUPPORTS_DESERIALIZATION
772 noexcept(custom_deserializable<T, document> ? nothrow_custom_deserializable<T, document> :
true)
777 static_assert(std::is_default_constructible<T>::value,
"Cannot initialize the specified type.");
779 SIMDJSON_TRY(get<T>(out));
784 #if SIMDJSON_SUPPORTS_DESERIALIZATION
785 noexcept(custom_deserializable<T, document> ? nothrow_custom_deserializable<T, document> :
true)
790 static_assert(!std::is_same<T, array>::value && !std::is_same<T, object>::value,
"You should never hold either an ondemand::array or ondemand::object without a corresponding ondemand::document_reference being alive; that would be Undefined Behaviour.");
807 #if SIMDJSON_SUPPORTS_DESERIALIZATION
808 noexcept(custom_deserializable<T, document> ? nothrow_custom_deserializable<T, document_reference> :
true)
813 #if SIMDJSON_SUPPORTS_DESERIALIZATION
814 if constexpr (custom_deserializable<T, document_reference>) {
815 return deserialize(*
this, out);
820 static_assert(!
sizeof(T),
"The get method with given type is not implemented by the simdjson library. "
821 "The supported types are ondemand::object, ondemand::array, raw_json_string, std::string_view, uint64_t, "
822 "int64_t, double, and bool. We recommend you use get_double(), get_bool(), get_uint64(), get_int64(), "
823 " get_object(), get_array(), get_raw_json_string(), or get_string() instead of the get template."
824 " You may also add support for custom types, see our documentation.");
825 static_cast<void>(out);
827 #if SIMDJSON_SUPPORTS_DESERIALIZATION
832 template<
typename T> simdjson_inline
error_code get(T &out) && noexcept;
834 simdjson_inline operator
document&() const noexcept;
835 #if SIMDJSON_EXCEPTIONS
837 explicit simdjson_inline
operator T() noexcept(false);
838 simdjson_inline operator
array() & noexcept(false);
839 simdjson_inline operator
object() & noexcept(false);
840 simdjson_inline operator uint64_t() noexcept(false);
841 simdjson_inline operator int64_t() noexcept(false);
842 simdjson_inline operator
double() noexcept(false);
843 simdjson_inline operator std::string_view() noexcept(false);
845 simdjson_inline operator
bool() noexcept(false);
846 simdjson_inline operator
value() noexcept(false);
865 simdjson_inline
simdjson_result<const
char *> current_location() noexcept;
866 simdjson_inline int32_t current_depth() const noexcept;
867 simdjson_inline
bool is_negative() noexcept;
869 simdjson_inline
simdjson_result<number_type> get_number_type() noexcept;
871 simdjson_inline
simdjson_result<std::string_view> raw_json_token() noexcept;
901 template <
typename string_type>
902 simdjson_inline
error_code get_string(string_type& receiver,
bool allow_replacement =
false) noexcept;
912 template<
typename T> simdjson_inline
error_code get(T &out) & noexcept;
913 template<
typename T> simdjson_inline
error_code get(T &out) && noexcept;
914 #if SIMDJSON_EXCEPTIONS
915 template <class T, typename std::enable_if<std::is_same<T, SIMDJSON_IMPLEMENTATION::ondemand::document>::value ==
false>::type>
916 explicit simdjson_inline
operator T() noexcept(
false);
919 simdjson_inline
operator uint64_t() noexcept(
false);
920 simdjson_inline
operator int64_t() noexcept(
false);
921 simdjson_inline
operator double() noexcept(
false);
922 simdjson_inline
operator std::string_view() noexcept(
false);
924 simdjson_inline
operator bool() noexcept(
false);
943 simdjson_inline int32_t current_depth()
const noexcept;
944 simdjson_inline
bool at_end()
const noexcept;
945 simdjson_inline
bool is_negative() noexcept;
979 template <
typename string_type>
980 simdjson_inline
error_code get_string(string_type& receiver,
bool allow_replacement =
false) noexcept;
990 template<
typename T> simdjson_inline
error_code get(T &out) & noexcept;
991 template<
typename T> simdjson_inline
error_code get(T &out) && noexcept;
992 #if SIMDJSON_EXCEPTIONS
994 explicit simdjson_inline
operator T() noexcept(
false);
997 simdjson_inline
operator uint64_t() noexcept(
false);
998 simdjson_inline
operator int64_t() noexcept(
false);
999 simdjson_inline
operator double() noexcept(
false);
1000 simdjson_inline
operator std::string_view() noexcept(
false);
1002 simdjson_inline
operator bool() noexcept(
false);
A forward-only JSON array.
A forward-only JSON array.
A document_reference is a thin wrapper around a document reference instance.
simdjson_inline simdjson_result< uint64_t > get_uint64() noexcept
The document_reference instances are used primarily/solely for streams of JSON documents.
simdjson_inline error_code get(T &out) &noexcept
Get this value as the given type.
A forward-only stream of documents.
simdjson_inline simdjson_result< value > at(size_t index) &noexcept
Get the value at the given index in the array.
static constexpr depth_t DOCUMENT_DEPTH
document depth is always 0
simdjson_inline int32_t current_depth() const noexcept
Returns the current depth in the document if in bounds.
simdjson_inline simdjson_result< array_iterator > begin() &noexcept
Begin array iteration.
simdjson_inline simdjson_result< size_t > count_fields() &noexcept
This method scans the object and counts the number of key-value pairs.
simdjson_inline simdjson_result< std::string_view > get_string(bool allow_replacement=false) noexcept
Cast this JSON value to a string.
simdjson_warn_unused simdjson_inline simdjson_result< number > get_number() noexcept
Attempt to parse an ondemand::number.
bool is_alive() noexcept
Some unrecoverable error conditions may render the document instance unusable.
simdjson_inline simdjson_result< bool > get_bool() noexcept
Cast this JSON value to a bool.
simdjson_inline simdjson_result< object > get_object() &noexcept
Cast this JSON value to an object.
simdjson_inline simdjson_result< bool > is_string() noexcept
Checks whether the document is a string.
simdjson_inline simdjson_result< uint64_t > get_uint64() noexcept
Cast this JSON value to an unsigned integer.
simdjson_inline bool is_negative() noexcept
Checks whether the document is a negative number.
simdjson_inline document() noexcept=default
Create a new invalid document.
simdjson_inline simdjson_result< std::string_view > raw_json_token() noexcept
Get the raw JSON for this token.
simdjson_inline simdjson_result< uint64_t > get_uint64_in_string() noexcept
Cast this JSON value (inside string) to an unsigned integer.
simdjson_inline simdjson_result< bool > is_null() noexcept
Checks if this JSON value is null.
simdjson_inline simdjson_result< int64_t > get_int64() noexcept
Cast this JSON value to a signed integer.
simdjson_inline simdjson_result< value > at_pointer(std::string_view json_pointer) noexcept
Get the value associated with the given JSON pointer.
simdjson_inline simdjson_result< json_type > type() noexcept
Get the type of this JSON value.
simdjson_inline simdjson_result< array_iterator > end() &noexcept
Sentinel representing the end of the array.
simdjson_inline simdjson_result< T > get() &noexcept
Get this value as the given type.
simdjson_inline simdjson_result< double > get_double_in_string() noexcept
Cast this JSON value (inside string) to a double.
simdjson_inline simdjson_result< value > at_path(std::string_view json_path) noexcept
Get the value associated with the given JSONPath expression.
json_iterator iter
Current position in the document.
simdjson_inline simdjson_result< double > get_double() noexcept
Cast this JSON value to a double.
std::string to_debug_string() noexcept
Returns debugging information.
void rewind() noexcept
Reset the iterator inside the document instance so we are pointing back at the beginning of the docum...
simdjson_inline simdjson_result< std::string_view > raw_json() noexcept
Consumes the document and returns a string_view instance corresponding to the document as represented...
simdjson_inline simdjson_result< value > find_field_unordered(std::string_view key) &noexcept
Look up a field by name on an object, without regard to key order.
simdjson_inline simdjson_result< int64_t > get_int64_in_string() noexcept
Cast this JSON value (inside string) to a signed integer.
simdjson_inline simdjson_result< size_t > count_elements() &noexcept
This method scans the array and counts the number of elements.
simdjson_inline simdjson_result< value > get_value() noexcept
Cast this JSON value to a value when the document is an object or an array.
simdjson_inline simdjson_result< value > find_field(std::string_view key) &noexcept
Look up a field by name on an object (order-sensitive).
simdjson_inline simdjson_result< number_type > get_number_type() noexcept
Determine the number type (integer or floating-point number) as quickly as possible.
simdjson_inline error_code consume() noexcept
Consumes the document.
simdjson_inline simdjson_result< bool > is_scalar() noexcept
Checks whether the document is a scalar (string, number, null, Boolean).
simdjson_inline simdjson_result< std::string_view > get_wobbly_string() noexcept
Cast this JSON value to a string.
bool at_end() const noexcept
Returns true if this document has been fully parsed.
simdjson_inline simdjson_result< array > get_array() &noexcept
Cast this JSON value to an array.
simdjson_inline error_code get(T &out) &noexcept
Get this value as the given type.
simdjson_inline simdjson_result< bool > is_integer() noexcept
Checks whether the document is an integer number.
simdjson_result< const char * > current_location() const noexcept
Returns the current location in the document if in bounds.
simdjson_inline simdjson_result< raw_json_string > get_raw_json_string() noexcept
Cast this JSON value to a raw_json_string.
A JSON field (key/value pair) in an object.
A forward-only JSON object field iterator.
A string escaped per JSON rules, terminated with quote (").
An ephemeral JSON value returned during iteration.
int32_t depth_t
Represents the depth of a JSON value (number of nested arrays/objects).
The top level simdjson namespace, containing everything the library provides.
error_code
All possible errors returned by simdjson.
@ UNINITIALIZED
unknown error, or uninitialized document
The result of a simdjson operation that could fail.
A type representing a JSON number.
The result of a simdjson operation that could fail.
simdjson_inline error_code error() const noexcept
The error.
simdjson_warn_unused simdjson_inline error_code get(T &value) &&noexcept
Move the value to the provided variable.
simdjson_inline T & value() &noexcept(false)
Get the result value.