/src/arduinojson/src/ArduinoJson/Variant/JsonVariant.hpp
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1 | | // ArduinoJson - https://arduinojson.org |
2 | | // Copyright © 2014-2022, Benoit BLANCHON |
3 | | // MIT License |
4 | | |
5 | | #pragma once |
6 | | |
7 | | #include <ArduinoJson/Variant/VariantRefBase.hpp> |
8 | | |
9 | | namespace ARDUINOJSON_NAMESPACE { |
10 | | |
11 | | // A reference to a value in a JsonDocument. |
12 | | // https://arduinojson.org/v6/api/jsonvariant/ |
13 | | class JsonVariant : public VariantRefBase<JsonVariant>, |
14 | | public VariantOperators<JsonVariant> { |
15 | | friend class VariantAttorney; |
16 | | |
17 | | public: |
18 | | // Creates an unbound reference. |
19 | 0 | JsonVariant() : _data(0), _pool(0) {} |
20 | | |
21 | | // INTERNAL USE ONLY |
22 | 0 | JsonVariant(MemoryPool* pool, VariantData* data) : _data(data), _pool(pool) {} |
23 | | |
24 | | private: |
25 | 0 | FORCE_INLINE MemoryPool* getPool() const { |
26 | 0 | return _pool; |
27 | 0 | } |
28 | | |
29 | 0 | FORCE_INLINE VariantData* getData() const { |
30 | 0 | return _data; |
31 | 0 | } |
32 | | |
33 | 0 | FORCE_INLINE VariantData* getOrCreateData() const { |
34 | 0 | return _data; |
35 | 0 | } |
36 | | |
37 | | VariantData* _data; |
38 | | MemoryPool* _pool; |
39 | | }; |
40 | | |
41 | | template <> |
42 | | struct Converter<JsonVariant> : private VariantAttorney { |
43 | 0 | static void toJson(JsonVariant src, JsonVariant dst) { |
44 | 0 | variantCopyFrom(getData(dst), getData(src), getPool(dst)); |
45 | 0 | } |
46 | | |
47 | 0 | static JsonVariant fromJson(JsonVariant src) { |
48 | 0 | return src; |
49 | 0 | } |
50 | | |
51 | | static InvalidConversion<JsonVariantConst, JsonVariant> fromJson( |
52 | | JsonVariantConst); |
53 | | |
54 | 0 | static bool checkJson(JsonVariant src) { |
55 | 0 | VariantData* data = getData(src); |
56 | 0 | return !!data; |
57 | 0 | } |
58 | | |
59 | 0 | static bool checkJson(JsonVariantConst) { |
60 | 0 | return false; |
61 | 0 | } |
62 | | }; |
63 | | |
64 | | template <> |
65 | | struct Converter<JsonVariantConst> : private VariantAttorney { |
66 | 0 | static void toJson(JsonVariantConst src, JsonVariant dst) { |
67 | 0 | variantCopyFrom(getData(dst), getData(src), getPool(dst)); |
68 | 0 | } |
69 | | |
70 | 0 | static JsonVariantConst fromJson(JsonVariantConst src) { |
71 | 0 | return JsonVariantConst(getData(src)); |
72 | 0 | } |
73 | | |
74 | 0 | static bool checkJson(JsonVariantConst src) { |
75 | 0 | const VariantData* data = getData(src); |
76 | 0 | return !!data; |
77 | 0 | } |
78 | | }; |
79 | | |
80 | | } // namespace ARDUINOJSON_NAMESPACE |