simdjson  3.11.0
Ridiculously Fast JSON
field-inl.h
1 #ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H
2 
3 #ifndef SIMDJSON_CONDITIONAL_INCLUDE
4 #define SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H
5 #include "simdjson/generic/ondemand/base.h"
6 #include "simdjson/generic/ondemand/field.h"
7 #include "simdjson/generic/ondemand/value-inl.h"
8 #include "simdjson/generic/ondemand/value_iterator-inl.h"
9 #endif // SIMDJSON_CONDITIONAL_INCLUDE
10 
11 namespace simdjson {
12 namespace SIMDJSON_IMPLEMENTATION {
13 namespace ondemand {
14 
15 // clang 6 does not think the default constructor can be noexcept, so we make it explicit
16 simdjson_inline field::field() noexcept : std::pair<raw_json_string, ondemand::value>() {}
17 
18 simdjson_inline field::field(raw_json_string key, ondemand::value &&value) noexcept
19  : std::pair<raw_json_string, ondemand::value>(key, std::forward<ondemand::value>(value))
20 {
21 }
22 
23 simdjson_inline simdjson_result<field> field::start(value_iterator &parent_iter) noexcept {
24  raw_json_string key;
25  SIMDJSON_TRY( parent_iter.field_key().get(key) );
26  SIMDJSON_TRY( parent_iter.field_value() );
27  return field::start(parent_iter, key);
28 }
29 
30 simdjson_inline simdjson_result<field> field::start(const value_iterator &parent_iter, raw_json_string key) noexcept {
31  return field(key, parent_iter.child());
32 }
33 
34 simdjson_inline simdjson_warn_unused simdjson_result<std::string_view> field::unescaped_key(bool allow_replacement) noexcept {
35  SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() but Visual Studio won't let us.
36  simdjson_result<std::string_view> answer = first.unescape(second.iter.json_iter(), allow_replacement);
37  first.consume();
38  return answer;
39 }
40 
41 template <typename string_type>
42 simdjson_inline simdjson_warn_unused error_code field::unescaped_key(string_type& receiver, bool allow_replacement) noexcept {
43  std::string_view key;
44  SIMDJSON_TRY( unescaped_key(allow_replacement).get(key) );
45  receiver = key;
46  return SUCCESS;
47 }
48 
49 simdjson_inline raw_json_string field::key() const noexcept {
50  SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us.
51  return first;
52 }
53 
54 
55 simdjson_inline std::string_view field::key_raw_json_token() const noexcept {
56  SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us.
57  return std::string_view(reinterpret_cast<const char*>(first.buf-1), second.iter._json_iter->token.peek(-1) - first.buf + 1);
58 }
59 
60 simdjson_inline std::string_view field::escaped_key() const noexcept {
61  SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us.
62  auto end_quote = second.iter._json_iter->token.peek(-1);
63  while(*end_quote != '"') end_quote--;
64  return std::string_view(reinterpret_cast<const char*>(first.buf), end_quote - first.buf);
65 }
66 
67 simdjson_inline value &field::value() & noexcept {
68  return second;
69 }
70 
71 simdjson_inline value field::value() && noexcept {
72  return std::forward<field>(*this).second;
73 }
74 
75 } // namespace ondemand
76 } // namespace SIMDJSON_IMPLEMENTATION
77 } // namespace simdjson
78 
79 namespace simdjson {
80 
81 simdjson_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::field>::simdjson_result(
82  SIMDJSON_IMPLEMENTATION::ondemand::field &&value
83 ) noexcept :
84  implementation_simdjson_result_base<SIMDJSON_IMPLEMENTATION::ondemand::field>(
85  std::forward<SIMDJSON_IMPLEMENTATION::ondemand::field>(value)
86  )
87 {
88 }
89 simdjson_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::field>::simdjson_result(
90  error_code error
91 ) noexcept :
92  implementation_simdjson_result_base<SIMDJSON_IMPLEMENTATION::ondemand::field>(error)
93 {
94 }
95 
96 simdjson_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::raw_json_string> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::field>::key() noexcept {
97  if (error()) { return error(); }
98  return first.key();
99 }
100 
101 simdjson_inline simdjson_result<std::string_view> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::field>::key_raw_json_token() noexcept {
102  if (error()) { return error(); }
103  return first.key_raw_json_token();
104 }
105 
106 simdjson_inline simdjson_result<std::string_view> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::field>::escaped_key() noexcept {
107  if (error()) { return error(); }
108  return first.escaped_key();
109 }
110 
111 simdjson_inline simdjson_result<std::string_view> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::field>::unescaped_key(bool allow_replacement) noexcept {
112  if (error()) { return error(); }
113  return first.unescaped_key(allow_replacement);
114 }
115 
116 template<typename string_type>
117 simdjson_inline error_code simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::field>::unescaped_key(string_type &receiver, bool allow_replacement) noexcept {
118  if (error()) { return error(); }
119  return first.unescaped_key(receiver, allow_replacement);
120 }
121 
122 simdjson_inline simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::value> simdjson_result<SIMDJSON_IMPLEMENTATION::ondemand::field>::value() noexcept {
123  if (error()) { return error(); }
124  return std::move(first.value());
125 }
126 
127 } // namespace simdjson
128 
129 #endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H
simdjson_inline std::string_view key_raw_json_token() const noexcept
Get the unprocessed key as a string_view.
Definition: field-inl.h:55
simdjson_inline simdjson_warn_unused simdjson_result< std::string_view > unescaped_key(bool allow_replacement=false) noexcept
Get the key as a string_view (for higher speed, consider raw_key).
Definition: field-inl.h:34
simdjson_inline raw_json_string key() const noexcept
Get the key as a raw_json_string.
Definition: field-inl.h:49
simdjson_inline std::string_view escaped_key() const noexcept
Get the key as a string_view.
Definition: field-inl.h:60
simdjson_inline field() noexcept
Create a new invalid field.
Definition: field-inl.h:16
simdjson_inline ondemand::value & value() &noexcept
Get the field value.
Definition: field-inl.h:67
A string escaped per JSON rules, terminated with quote (").
An ephemeral JSON value returned during iteration.
Definition: value.h:21
The top level simdjson namespace, containing everything the library provides.
Definition: base.h:8
error_code
All possible errors returned by simdjson.
Definition: error.h:19
@ SUCCESS
No error.
Definition: error.h:20
The result of a simdjson operation that could fail.
Definition: error.h:215
simdjson_inline error_code error() const noexcept
The error.
Definition: error-inl.h:131
simdjson_inline T & value() &noexcept(false)
Get the result value.