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annotate include/core/json.h @ 318:3b355fa948c7

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config: use TOML instead of INI unfortunately, INI is not enough, and causes some paths including semicolons to break with our current storage of the library folders. so, I decided to switch to TOML which does support real arrays...
author Paper <paper@paper.us.eu.org>
date Wed, 12 Jun 2024 05:25:41 -0400
parents b1f4d1867ab1
children 1686fac290c5
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1 #ifndef MINORI_CORE_JSON_H_
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2 #define MINORI_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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9
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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 if (v.has_value())
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13 j = v.value();
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14 else
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15 j = nullptr;
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16 }
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17
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18 template<typename T>
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19 void from_json(const nlohmann::json& j, std::optional<T>& v) {
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20 v = j.is_null() ? std::nullopt : j.get<T>();
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21 }
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23 } // namespace nlohmann
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24
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25 namespace JSON {
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27 /* TODO: refactor these to return a std::optional... */
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28 template<typename T = std::string>
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29 T GetString(const nlohmann::json& json, const nlohmann::json::json_pointer& ptr, T def) {
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30 if (json.contains(ptr) && json[ptr].is_string())
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31 return json[ptr].get<T>();
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32 else
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33 return def;
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34 }
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35
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36 template<typename T = int>
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37 T GetNumber(const nlohmann::json& json, const nlohmann::json::json_pointer& ptr, T def = 0) {
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38 if (json.contains(ptr) && json[ptr].is_number())
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39 return json[ptr].get<T>();
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40 else
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41 return def;
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42 }
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43
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44 template<typename T = std::vector<std::string>>
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45 T GetArray(const nlohmann::json& json, const nlohmann::json::json_pointer& ptr, T def = 0) {
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46 if (json.contains(ptr) && json[ptr].is_array())
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47 return json[ptr].get<T>();
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48 else
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49 return def;
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50 }
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51
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52 nlohmann::json GetValue(const nlohmann::json& json, const nlohmann::json::json_pointer& ptr);
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53 bool GetBoolean(const nlohmann::json& json, const nlohmann::json::json_pointer& ptr, bool def = false);
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54
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55 } // namespace JSON
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57 #endif // MINORI_CORE_JSON_H_