mirror of
https://github.com/simdjson/simdjson
synced 2026-06-08 17:27:07 +00:00
Joseph Olabisi
fb9a689dff
* wip brute-force wildcard for json_path * wip - bruteforce surface wildcard with result * partially handle keys with wildcard * wip - nested paths/pointers on wildcard results * wip * wip - handling child properties of wildcard result * done - handling child properties of wildcard result * fix key * add support for wildcard for arrays * handle array INCORRECT_TYPE * rename at_path_new to at_path_with_wildcard * add benchmark * fix benchmark * use memcmp * minor improvements * refactor to tail recursion * nit * approximately 30% improvement in runtime * nit * corrected logic * nit * cleanup * add some initial tests * cleanup 2 * modified: CMakeLists.txt * cleanup * cleanup * cleanup * cleanup * restore examples/quickstart/CMakeLists.txt * cleanup * restore quickstart.cpp * revert array-inl.h * cleanup array-inl.h * revert object-inl.h * cleanup object-inl.h * cleanup * nit * nit * add test * address some feedbacks * address additional feedbacks (copilot) * final changes based on feedback - reduce string allocations * fix bug in object-inl.h * fix logic for wildcards inside arrays * add test for wildcard in nested array * refactor and create util for getting key and json path * minor error handling * refactor process_json_path_of_child_element from recursion to loop in order to prevent stack overflow * fix bug with array, add boundary check to get_next_key_and_json_path function * add more tests * fix boundary check and unnecessary string allocation * minor changes * fix * fix jsonpathutil * remove unneccessary string allocation * some minor fixes * documentation * removing printout * various fixes * reorg of the CI test file --------- Co-authored-by: Daniel Lemire <daniel@lemire.me>
505 lines
20 KiB
C++
505 lines
20 KiB
C++
#ifndef SIMDJSON_ELEMENT_INL_H
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#define SIMDJSON_ELEMENT_INL_H
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#include "simdjson/dom/base.h"
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#include "simdjson/dom/element.h"
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#include "simdjson/dom/document.h"
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#include "simdjson/dom/object.h"
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#include "simdjson/internal/tape_type.h"
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#include "simdjson/dom/object-inl.h"
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#include "simdjson/error-inl.h"
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#include "simdjson/jsonpathutil.h"
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#include <ostream>
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#include <limits>
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namespace simdjson {
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//
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// simdjson_result<dom::element> inline implementation
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//
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simdjson_inline simdjson_result<dom::element>::simdjson_result() noexcept
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: internal::simdjson_result_base<dom::element>() {}
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simdjson_inline simdjson_result<dom::element>::simdjson_result(dom::element &&value) noexcept
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: internal::simdjson_result_base<dom::element>(std::forward<dom::element>(value)) {}
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simdjson_inline simdjson_result<dom::element>::simdjson_result(error_code error) noexcept
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: internal::simdjson_result_base<dom::element>(error) {}
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inline simdjson_result<dom::element_type> simdjson_result<dom::element>::type() const noexcept {
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if (error()) { return error(); }
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return first.type();
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}
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template<typename T>
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simdjson_inline bool simdjson_result<dom::element>::is() const noexcept {
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return !error() && first.is<T>();
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}
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template<typename T>
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simdjson_inline simdjson_result<T> simdjson_result<dom::element>::get() const noexcept {
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if (error()) { return error(); }
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return first.get<T>();
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}
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template<typename T>
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simdjson_warn_unused simdjson_inline error_code simdjson_result<dom::element>::get(T &value) const noexcept {
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if (error()) { return error(); }
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return first.get<T>(value);
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}
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simdjson_inline simdjson_result<dom::array> simdjson_result<dom::element>::get_array() const noexcept {
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if (error()) { return error(); }
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return first.get_array();
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}
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simdjson_inline simdjson_result<dom::object> simdjson_result<dom::element>::get_object() const noexcept {
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if (error()) { return error(); }
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return first.get_object();
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}
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simdjson_inline simdjson_result<const char *> simdjson_result<dom::element>::get_c_str() const noexcept {
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if (error()) { return error(); }
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return first.get_c_str();
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}
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simdjson_inline simdjson_result<size_t> simdjson_result<dom::element>::get_string_length() const noexcept {
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if (error()) { return error(); }
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return first.get_string_length();
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}
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simdjson_inline simdjson_result<std::string_view> simdjson_result<dom::element>::get_string() const noexcept {
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if (error()) { return error(); }
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return first.get_string();
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}
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simdjson_inline simdjson_result<int64_t> simdjson_result<dom::element>::get_int64() const noexcept {
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if (error()) { return error(); }
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return first.get_int64();
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}
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simdjson_inline simdjson_result<uint64_t> simdjson_result<dom::element>::get_uint64() const noexcept {
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if (error()) { return error(); }
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return first.get_uint64();
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}
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simdjson_inline simdjson_result<double> simdjson_result<dom::element>::get_double() const noexcept {
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if (error()) { return error(); }
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return first.get_double();
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}
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simdjson_inline simdjson_result<bool> simdjson_result<dom::element>::get_bool() const noexcept {
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if (error()) { return error(); }
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return first.get_bool();
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}
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simdjson_inline bool simdjson_result<dom::element>::is_array() const noexcept {
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return !error() && first.is_array();
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}
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simdjson_inline bool simdjson_result<dom::element>::is_object() const noexcept {
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return !error() && first.is_object();
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}
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simdjson_inline bool simdjson_result<dom::element>::is_string() const noexcept {
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return !error() && first.is_string();
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}
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simdjson_inline bool simdjson_result<dom::element>::is_int64() const noexcept {
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return !error() && first.is_int64();
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}
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simdjson_inline bool simdjson_result<dom::element>::is_uint64() const noexcept {
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return !error() && first.is_uint64();
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}
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simdjson_inline bool simdjson_result<dom::element>::is_double() const noexcept {
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return !error() && first.is_double();
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}
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simdjson_inline bool simdjson_result<dom::element>::is_number() const noexcept {
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return !error() && first.is_number();
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}
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simdjson_inline bool simdjson_result<dom::element>::is_bool() const noexcept {
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return !error() && first.is_bool();
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}
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simdjson_inline bool simdjson_result<dom::element>::is_null() const noexcept {
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return !error() && first.is_null();
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}
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simdjson_inline simdjson_result<dom::element> simdjson_result<dom::element>::operator[](std::string_view key) const noexcept {
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if (error()) { return error(); }
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return first[key];
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}
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simdjson_inline simdjson_result<dom::element> simdjson_result<dom::element>::operator[](const char *key) const noexcept {
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if (error()) { return error(); }
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return first[key];
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}
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simdjson_inline simdjson_result<dom::element> simdjson_result<dom::element>::at_pointer(const std::string_view json_pointer) const noexcept {
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if (error()) { return error(); }
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return first.at_pointer(json_pointer);
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}
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simdjson_inline simdjson_result<dom::element> simdjson_result<dom::element>::at_path(const std::string_view json_path) const noexcept {
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auto json_pointer = json_path_to_pointer_conversion(json_path);
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if (json_pointer == "-1") { return INVALID_JSON_POINTER; }
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return at_pointer(json_pointer);
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}
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simdjson_inline simdjson_result<std::vector<dom::element>> simdjson_result<dom::element>::at_path_with_wildcard(const std::string_view json_path) const noexcept {
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if (error()) { return error(); }
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return first.at_path_with_wildcard(json_path);
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}
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#ifndef SIMDJSON_DISABLE_DEPRECATED_API
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[[deprecated("For standard compliance, use at_pointer instead, and prefix your pointers with a slash '/', see RFC6901 ")]]
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simdjson_inline simdjson_result<dom::element> simdjson_result<dom::element>::at(const std::string_view json_pointer) const noexcept {
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SIMDJSON_PUSH_DISABLE_WARNINGS
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SIMDJSON_DISABLE_DEPRECATED_WARNING
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if (error()) { return error(); }
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return first.at(json_pointer);
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SIMDJSON_POP_DISABLE_WARNINGS
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}
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#endif // SIMDJSON_DISABLE_DEPRECATED_API
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simdjson_inline simdjson_result<dom::element> simdjson_result<dom::element>::at(size_t index) const noexcept {
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if (error()) { return error(); }
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return first.at(index);
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}
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simdjson_inline simdjson_result<dom::element> simdjson_result<dom::element>::at_key(std::string_view key) const noexcept {
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if (error()) { return error(); }
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return first.at_key(key);
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}
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simdjson_inline simdjson_result<dom::element> simdjson_result<dom::element>::at_key_case_insensitive(std::string_view key) const noexcept {
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if (error()) { return error(); }
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return first.at_key_case_insensitive(key);
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}
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#if SIMDJSON_EXCEPTIONS
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simdjson_inline simdjson_result<dom::element>::operator bool() const noexcept(false) {
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return get<bool>();
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}
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simdjson_inline simdjson_result<dom::element>::operator const char *() const noexcept(false) {
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return get<const char *>();
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}
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simdjson_inline simdjson_result<dom::element>::operator std::string_view() const noexcept(false) {
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return get<std::string_view>();
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}
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simdjson_inline simdjson_result<dom::element>::operator uint64_t() const noexcept(false) {
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return get<uint64_t>();
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}
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simdjson_inline simdjson_result<dom::element>::operator int64_t() const noexcept(false) {
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return get<int64_t>();
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}
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simdjson_inline simdjson_result<dom::element>::operator double() const noexcept(false) {
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return get<double>();
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}
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simdjson_inline simdjson_result<dom::element>::operator dom::array() const noexcept(false) {
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return get<dom::array>();
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}
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simdjson_inline simdjson_result<dom::element>::operator dom::object() const noexcept(false) {
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return get<dom::object>();
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}
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simdjson_inline dom::array::iterator simdjson_result<dom::element>::begin() const noexcept(false) {
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if (error()) { throw simdjson_error(error()); }
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return first.begin();
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}
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simdjson_inline dom::array::iterator simdjson_result<dom::element>::end() const noexcept(false) {
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if (error()) { throw simdjson_error(error()); }
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return first.end();
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}
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#endif // SIMDJSON_EXCEPTIONS
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namespace dom {
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//
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// element inline implementation
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//
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simdjson_inline element::element() noexcept : tape{} {}
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simdjson_inline element::element(const internal::tape_ref &_tape) noexcept : tape{_tape} { }
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inline element_type element::type() const noexcept {
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SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
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auto tape_type = tape.tape_ref_type();
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return tape_type == internal::tape_type::FALSE_VALUE ? element_type::BOOL : static_cast<element_type>(tape_type);
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}
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inline simdjson_result<bool> element::get_bool() const noexcept {
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SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
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if(tape.is_true()) {
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return true;
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} else if(tape.is_false()) {
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return false;
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}
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return INCORRECT_TYPE;
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}
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inline simdjson_result<const char *> element::get_c_str() const noexcept {
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SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
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switch (tape.tape_ref_type()) {
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case internal::tape_type::STRING: {
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return tape.get_c_str();
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}
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default:
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return INCORRECT_TYPE;
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}
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}
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inline simdjson_result<size_t> element::get_string_length() const noexcept {
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SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
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switch (tape.tape_ref_type()) {
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case internal::tape_type::STRING: {
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return tape.get_string_length();
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}
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default:
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return INCORRECT_TYPE;
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}
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}
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inline simdjson_result<std::string_view> element::get_string() const noexcept {
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SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
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switch (tape.tape_ref_type()) {
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case internal::tape_type::STRING:
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return tape.get_string_view();
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default:
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return INCORRECT_TYPE;
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}
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}
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inline simdjson_result<uint64_t> element::get_uint64() const noexcept {
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SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
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if(simdjson_unlikely(!tape.is_uint64())) { // branch rarely taken
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if(tape.is_int64()) {
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int64_t result = tape.next_tape_value<int64_t>();
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if (result < 0) {
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return NUMBER_OUT_OF_RANGE;
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}
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return uint64_t(result);
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}
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return INCORRECT_TYPE;
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}
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return tape.next_tape_value<int64_t>();
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}
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inline simdjson_result<int64_t> element::get_int64() const noexcept {
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SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
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if(simdjson_unlikely(!tape.is_int64())) { // branch rarely taken
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if(tape.is_uint64()) {
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uint64_t result = tape.next_tape_value<uint64_t>();
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// Wrapping max in parens to handle Windows issue: https://stackoverflow.com/questions/11544073/how-do-i-deal-with-the-max-macro-in-windows-h-colliding-with-max-in-std
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if (result > uint64_t((std::numeric_limits<int64_t>::max)())) {
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return NUMBER_OUT_OF_RANGE;
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}
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return static_cast<int64_t>(result);
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}
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return INCORRECT_TYPE;
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}
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return tape.next_tape_value<int64_t>();
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}
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inline simdjson_result<double> element::get_double() const noexcept {
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SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
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// Performance considerations:
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// 1. Querying tape_ref_type() implies doing a shift, it is fast to just do a straight
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// comparison.
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// 2. Using a switch-case relies on the compiler guessing what kind of code generation
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// we want... But the compiler cannot know that we expect the type to be "double"
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// most of the time.
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// We can expect get<double> to refer to a double type almost all the time.
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// It is important to craft the code accordingly so that the compiler can use this
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// information. (This could also be solved with profile-guided optimization.)
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if(simdjson_unlikely(!tape.is_double())) { // branch rarely taken
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if(tape.is_uint64()) {
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return double(tape.next_tape_value<uint64_t>());
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} else if(tape.is_int64()) {
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return double(tape.next_tape_value<int64_t>());
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}
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return INCORRECT_TYPE;
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}
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// this is common:
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return tape.next_tape_value<double>();
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}
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inline simdjson_result<array> element::get_array() const noexcept {
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SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
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switch (tape.tape_ref_type()) {
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case internal::tape_type::START_ARRAY:
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return array(tape);
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default:
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return INCORRECT_TYPE;
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}
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}
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inline simdjson_result<object> element::get_object() const noexcept {
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SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
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switch (tape.tape_ref_type()) {
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case internal::tape_type::START_OBJECT:
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return object(tape);
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default:
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return INCORRECT_TYPE;
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}
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}
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template<typename T>
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simdjson_warn_unused simdjson_inline error_code element::get(T &value) const noexcept {
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return get<T>().get(value);
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}
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// An element-specific version prevents recursion with simdjson_result::get<element>(value)
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template<>
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simdjson_warn_unused simdjson_inline error_code element::get<element>(element &value) const noexcept {
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value = element(tape);
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return SUCCESS;
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}
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template<typename T>
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inline void element::tie(T &value, error_code &error) && noexcept {
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error = get<T>(value);
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}
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template<typename T>
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simdjson_inline bool element::is() const noexcept {
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auto result = get<T>();
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return !result.error();
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}
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template<> inline simdjson_result<array> element::get<array>() const noexcept { return get_array(); }
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template<> inline simdjson_result<object> element::get<object>() const noexcept { return get_object(); }
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template<> inline simdjson_result<const char *> element::get<const char *>() const noexcept { return get_c_str(); }
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template<> inline simdjson_result<std::string_view> element::get<std::string_view>() const noexcept { return get_string(); }
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template<> inline simdjson_result<int64_t> element::get<int64_t>() const noexcept { return get_int64(); }
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template<> inline simdjson_result<uint64_t> element::get<uint64_t>() const noexcept { return get_uint64(); }
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template<> inline simdjson_result<double> element::get<double>() const noexcept { return get_double(); }
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template<> inline simdjson_result<bool> element::get<bool>() const noexcept { return get_bool(); }
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inline bool element::is_array() const noexcept { return is<array>(); }
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inline bool element::is_object() const noexcept { return is<object>(); }
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inline bool element::is_string() const noexcept { return is<std::string_view>(); }
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inline bool element::is_int64() const noexcept { return is<int64_t>(); }
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inline bool element::is_uint64() const noexcept { return is<uint64_t>(); }
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inline bool element::is_double() const noexcept { return is<double>(); }
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inline bool element::is_bool() const noexcept { return is<bool>(); }
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inline bool element::is_number() const noexcept { return is_int64() || is_uint64() || is_double(); }
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inline bool element::is_null() const noexcept {
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return tape.is_null_on_tape();
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}
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#if SIMDJSON_EXCEPTIONS
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inline element::operator bool() const noexcept(false) { return get<bool>(); }
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inline element::operator const char*() const noexcept(false) { return get<const char *>(); }
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inline element::operator std::string_view() const noexcept(false) { return get<std::string_view>(); }
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inline element::operator uint64_t() const noexcept(false) { return get<uint64_t>(); }
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inline element::operator int64_t() const noexcept(false) { return get<int64_t>(); }
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inline element::operator double() const noexcept(false) { return get<double>(); }
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inline element::operator array() const noexcept(false) { return get<array>(); }
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inline element::operator object() const noexcept(false) { return get<object>(); }
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inline array::iterator element::begin() const noexcept(false) {
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return get<array>().begin();
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}
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inline array::iterator element::end() const noexcept(false) {
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return get<array>().end();
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}
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#endif // SIMDJSON_EXCEPTIONS
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inline simdjson_result<element> element::operator[](std::string_view key) const noexcept {
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return at_key(key);
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}
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inline simdjson_result<element> element::operator[](const char *key) const noexcept {
|
|
return at_key(key);
|
|
}
|
|
|
|
inline bool is_pointer_well_formed(std::string_view json_pointer) noexcept {
|
|
if (simdjson_unlikely(json_pointer[0] != '/')) {
|
|
return false;
|
|
}
|
|
size_t escape = json_pointer.find('~');
|
|
if (escape == std::string_view::npos) {
|
|
return true;
|
|
}
|
|
if (escape == json_pointer.size() - 1) {
|
|
return false;
|
|
}
|
|
if (json_pointer[escape + 1] != '0' && json_pointer[escape + 1] != '1') {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
inline simdjson_result<element> element::at_pointer(std::string_view json_pointer) const noexcept {
|
|
SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
|
|
switch (tape.tape_ref_type()) {
|
|
case internal::tape_type::START_OBJECT:
|
|
return object(tape).at_pointer(json_pointer);
|
|
case internal::tape_type::START_ARRAY:
|
|
return array(tape).at_pointer(json_pointer);
|
|
default: {
|
|
if (!json_pointer.empty()) { // a non-empty string can be invalid, or accessing a primitive (issue 2154)
|
|
if (is_pointer_well_formed(json_pointer)) {
|
|
return NO_SUCH_FIELD;
|
|
}
|
|
return INVALID_JSON_POINTER;
|
|
}
|
|
// an empty string means that we return the current node
|
|
dom::element copy(*this);
|
|
return simdjson_result<element>(std::move(copy));
|
|
}
|
|
}
|
|
}
|
|
|
|
inline simdjson_result<std::vector<element>> element::at_path_with_wildcard(std::string_view json_path) const noexcept {
|
|
SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
|
|
|
|
switch (tape.tape_ref_type()) {
|
|
case internal::tape_type::START_OBJECT:
|
|
return object(tape).at_path_with_wildcard(json_path);
|
|
case internal::tape_type::START_ARRAY:
|
|
return array(tape).at_path_with_wildcard(json_path);
|
|
default:
|
|
return std::vector<element>{};
|
|
}
|
|
}
|
|
|
|
inline simdjson_result<element> element::at_path(std::string_view json_path) const noexcept {
|
|
auto json_pointer = json_path_to_pointer_conversion(json_path);
|
|
if (json_pointer == "-1") { return INVALID_JSON_POINTER; }
|
|
return at_pointer(json_pointer);
|
|
}
|
|
#ifndef SIMDJSON_DISABLE_DEPRECATED_API
|
|
[[deprecated("For standard compliance, use at_pointer instead, and prefix your pointers with a slash '/', see RFC6901 ")]]
|
|
inline simdjson_result<element> element::at(std::string_view json_pointer) const noexcept {
|
|
// version 0.4 of simdjson allowed non-compliant pointers
|
|
auto std_pointer = (json_pointer.empty() ? "" : "/") + std::string(json_pointer.begin(), json_pointer.end());
|
|
return at_pointer(std_pointer);
|
|
}
|
|
#endif // SIMDJSON_DISABLE_DEPRECATED_API
|
|
|
|
inline simdjson_result<element> element::at(size_t index) const noexcept {
|
|
return get<array>().at(index);
|
|
}
|
|
inline simdjson_result<element> element::at_key(std::string_view key) const noexcept {
|
|
return get<object>().at_key(key);
|
|
}
|
|
inline simdjson_result<element> element::at_key_case_insensitive(std::string_view key) const noexcept {
|
|
return get<object>().at_key_case_insensitive(key);
|
|
}
|
|
inline bool element::operator<(const element &other) const noexcept {
|
|
return tape.json_index < other.tape.json_index;
|
|
}
|
|
inline bool element::operator==(const element &other) const noexcept {
|
|
return tape.json_index == other.tape.json_index;
|
|
}
|
|
|
|
inline bool element::dump_raw_tape(std::ostream &out) const noexcept {
|
|
SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914
|
|
return tape.doc->dump_raw_tape(out);
|
|
}
|
|
|
|
|
|
inline std::ostream& operator<<(std::ostream& out, element_type type) {
|
|
switch (type) {
|
|
case element_type::ARRAY:
|
|
return out << "array";
|
|
case element_type::OBJECT:
|
|
return out << "object";
|
|
case element_type::INT64:
|
|
return out << "int64_t";
|
|
case element_type::UINT64:
|
|
return out << "uint64_t";
|
|
case element_type::DOUBLE:
|
|
return out << "double";
|
|
case element_type::STRING:
|
|
return out << "string";
|
|
case element_type::BOOL:
|
|
return out << "bool";
|
|
case element_type::NULL_VALUE:
|
|
return out << "null";
|
|
default:
|
|
return out << "unexpected content!!!"; // abort() usage is forbidden in the library
|
|
}
|
|
}
|
|
|
|
} // namespace dom
|
|
|
|
} // namespace simdjson
|
|
|
|
#endif // SIMDJSON_ELEMENT_INL_H
|