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annotate include/core/json.h @ 253:b3549da699a6

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*: ooooh! stupid big commit! oops
author Paper <paper@paper.us.eu.org>
date Tue, 06 Feb 2024 16:56:32 -0500
parents 79a87a6dd39d
children 862d0d8619f6
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1 #ifndef __core__json_h
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2 #define __core__json_h
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4 #include "json/json.hpp"
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6 #include <optional>
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7
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8 namespace nlohmann {
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10 template<typename T>
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11 void to_json(nlohmann::json& j, const std::optional<T>& v)
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12 {
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13 if (v.has_value())
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14 j = v.value();
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15 else
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16 j = nullptr;
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17 }
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19 template<typename T>
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20 void from_json(const nlohmann::json& j, std::optional<T>& v)
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21 {
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22 v = j.is_null() ? std::nullopt : j.get<T>();
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23 }
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24
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25 } // namespace nlohmann
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27 namespace JSON {
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29 template<typename T = std::string>
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30 T GetString(const nlohmann::json& json, const nlohmann::json::json_pointer& ptr, T def) {
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31 if (json.contains(ptr) && json[ptr].is_string())
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32 return json[ptr].get<T>();
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33 else
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34 return def;
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35 }
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37 template<typename T = int>
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38 T GetNumber(const nlohmann::json& json, const nlohmann::json::json_pointer& ptr, T def = 0) {
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39 if (json.contains(ptr) && json[ptr].is_number())
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40 return json[ptr].get<T>();
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41 else
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42 return def;
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43 }
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45 template<typename T = std::vector<std::string>>
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46 T GetArray(const nlohmann::json& json, const nlohmann::json::json_pointer& ptr, T def = 0) {
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47 if (json.contains(ptr) && json[ptr].is_array())
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48 return json[ptr].get<T>();
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49 else
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50 return def;
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51 }
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53 nlohmann::json GetValue(const nlohmann::json& json, const nlohmann::json::json_pointer& ptr);
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54 bool GetBoolean(const nlohmann::json& json, const nlohmann::json::json_pointer& ptr, bool def = false);
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56 } // namespace JSON
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58 #endif // __core__json_h