mirror of
https://github.com/vcmi/vcmi.git
synced 2024-12-22 22:13:35 +02:00
538 lines
15 KiB
C++
538 lines
15 KiB
C++
/*
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* JsonSerializeFormat.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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#include "../JsonNode.h"
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#include "../CModHandler.h"
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#include "../VCMI_Lib.h"
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VCMI_LIB_NAMESPACE_BEGIN
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class JsonSerializeFormat;
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class JsonStructSerializer;
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class JsonArraySerializer;
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class DLL_LINKAGE IInstanceResolver
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{
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public:
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virtual ~IInstanceResolver(){};
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virtual si32 decode(const std::string & identifier) const = 0;
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virtual std::string encode(si32 identifier) const = 0;
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};
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class DLL_LINKAGE JsonSerializeHelper: public boost::noncopyable
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{
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public:
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JsonSerializeHelper(JsonSerializeHelper && other) noexcept;
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virtual ~JsonSerializeHelper();
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JsonSerializeFormat * operator->();
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protected:
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JsonSerializeHelper(JsonSerializeFormat * owner_);
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JsonSerializeFormat * owner;
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private:
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bool restoreState;
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};
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class DLL_LINKAGE JsonStructSerializer: public JsonSerializeHelper
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{
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public:
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JsonStructSerializer(JsonStructSerializer && other) noexcept;
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protected:
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JsonStructSerializer(JsonSerializeFormat * owner_);
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friend class JsonSerializeFormat;
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friend class JsonArraySerializer;
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};
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class DLL_LINKAGE JsonArraySerializer: public JsonSerializeHelper
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{
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public:
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JsonArraySerializer(JsonArraySerializer && other) noexcept;
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JsonStructSerializer enterStruct(const size_t index);
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JsonArraySerializer enterArray(const size_t index);
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template <typename Container>
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void syncSize(Container & c, JsonNode::JsonType type = JsonNode::JsonType::DATA_NULL);
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///Anything int64-convertible <-> Json integer
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template <typename T>
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void serializeInt(const size_t index, T & value);
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///String <-> Json string
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void serializeString(const size_t index, std::string & value);
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///vector of serializable <-> Json vector of structs
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template <typename Element>
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void serializeStruct(std::vector<Element> & value)
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{
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syncSize(value, JsonNode::JsonType::DATA_STRUCT);
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for(size_t idx = 0; idx < size(); idx++)
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{
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auto s = enterStruct(idx);
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value[idx].serializeJson(*owner);
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}
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}
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void resize(const size_t newSize);
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void resize(const size_t newSize, JsonNode::JsonType type);
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size_t size() const;
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protected:
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JsonArraySerializer(JsonSerializeFormat * owner_);
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friend class JsonSerializeFormat;
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private:
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const JsonNode * thisNode;
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void serializeInt64(const size_t index, int64_t & value);
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};
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class DLL_LINKAGE JsonSerializeFormat: public boost::noncopyable
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{
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public:
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///user-provided callback to resolve string identifier
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///returns resolved identifier or -1 on error
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using TDecoder = std::function<si32(const std::string &)>;
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///user-provided callback to get string identifier
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///may assume that object index is valid
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using TEncoder = std::function<std::string(si32)>;
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using TSerialize = std::function<void(JsonSerializeFormat &)>;
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struct LIC
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{
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LIC(const std::vector<bool> & Standard, TDecoder Decoder, TEncoder Encoder);
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const std::vector<bool> & standard;
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const TDecoder decoder;
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const TEncoder encoder;
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std::vector<bool> all, any, none;
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};
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struct LICSet
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{
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LICSet(const std::set<si32> & Standard, TDecoder Decoder, TEncoder Encoder);
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const std::set<si32> & standard;
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const TDecoder decoder;
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const TEncoder encoder;
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std::set<si32> all, any, none;
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};
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const bool saving;
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const bool updating;
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JsonSerializeFormat() = delete;
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virtual ~JsonSerializeFormat() = default;
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virtual const JsonNode & getCurrent() = 0;
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JsonStructSerializer enterStruct(const std::string & fieldName);
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JsonArraySerializer enterArray(const std::string & fieldName);
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///Anything comparable <-> Json bool
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template <typename T>
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void serializeBool(const std::string & fieldName, T & value, const T trueValue, const T falseValue, const T defaultValue)
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{
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boost::logic::tribool temp(boost::logic::indeterminate);
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if(value == defaultValue)
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;//leave as indeterminate
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else if(value == trueValue)
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temp = true;
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else if(value == falseValue)
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temp = false;
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serializeInternal(fieldName, temp);
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if(!saving)
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{
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if(boost::logic::indeterminate(temp))
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value = defaultValue;
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else
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value = temp ? trueValue : falseValue;
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}
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}
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///bool <-> Json bool
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void serializeBool(const std::string & fieldName, bool & value);
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void serializeBool(const std::string & fieldName, bool & value, const bool defaultValue);
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///tribool <-> Json bool
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void serializeBool(const std::string & fieldName, boost::logic::tribool & value)
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{
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serializeInternal(fieldName, value);
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};
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/** @brief Restrictive ("anyOf") simple serialization of Logical identifier condition, simple deserialization (allOf=anyOf)
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*
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* @param fieldName
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* @param decoder resolve callback, should report errors itself and do not throw
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* @param encoder encode callback, should report errors itself and do not throw
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* @param value target value, must be resized properly
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*
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*/
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virtual void serializeLIC(const std::string & fieldName, const TDecoder & decoder, const TEncoder & encoder, const std::vector<bool> & standard, std::vector<bool> & value) = 0;
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/** @brief Complete serialization of Logical identifier condition
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*/
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virtual void serializeLIC(const std::string & fieldName, LIC & value) = 0;
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/** @brief Complete serialization of Logical identifier condition. (Special version)
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* Assumes that all values are allowed by default, and standard contains them
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*/
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virtual void serializeLIC(const std::string & fieldName, LICSet & value) = 0;
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///String <-> Json string
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virtual void serializeString(const std::string & fieldName, std::string & value) = 0;
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///si32-convertible enum <-> Json string enum
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template <typename T>
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void serializeEnum(const std::string & fieldName, T & value, const std::vector<std::string> & enumMap)
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{
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doSerializeInternal<T, T, si32>(fieldName, value, std::nullopt, enumMap);
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};
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///si32-convertible enum <-> Json string enum
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template <typename T, typename U>
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void serializeEnum(const std::string & fieldName, T & value, const U & defaultValue, const std::vector<std::string> & enumMap)
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{
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doSerializeInternal<T, U, si32>(fieldName, value, defaultValue, enumMap);
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};
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template <typename T, typename U, typename C>
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void serializeEnum(const std::string & fieldName, T & value, const U & defaultValue, const C & enumMap)
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{
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std::vector<std::string> enumMapCopy;
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std::copy(std::begin(enumMap), std::end(enumMap), std::back_inserter(enumMapCopy));
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doSerializeInternal<T, U, si32>(fieldName, value, defaultValue, enumMapCopy);
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};
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///Anything double-convertible <-> Json double
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template <typename T>
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void serializeFloat(const std::string & fieldName, T & value)
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{
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doSerializeInternal<T, T, double>(fieldName, value, std::nullopt);
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};
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///Anything double-convertible <-> Json double
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template <typename T, typename U>
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void serializeFloat(const std::string & fieldName, T & value, const U & defaultValue)
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{
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doSerializeInternal<T, U, double>(fieldName, value, defaultValue);
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};
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///Anything int64-convertible <-> Json integer
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///no default value
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template <typename T>
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void serializeInt(const std::string & fieldName, T & value)
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{
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doSerializeInternal<T, T, si64>(fieldName, value, std::nullopt);
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};
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///Anything int64-convertible <-> Json integer
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///custom default value
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template <typename T, typename U>
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void serializeInt(const std::string & fieldName, T & value, const U & defaultValue)
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{
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doSerializeInternal<T, U, si64>(fieldName, value, defaultValue);
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};
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///Anything int64-convertible <-> Json integer
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///default value is std::nullopt
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template<typename T>
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void serializeInt(const std::string & fieldName, std::optional<T> & value)
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{
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dispatchOptional<T, si64>(fieldName, value);
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};
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///si32-convertible identifier <-> Json string
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template <typename T, typename U>
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void serializeId(const std::string & fieldName, T & value, const U & defaultValue, const TDecoder & decoder, const TEncoder & encoder)
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{
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doSerializeInternal<T, U, si32>(fieldName, value, defaultValue, decoder, encoder);
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}
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///si32-convertible identifier <-> Json string
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template <typename T, typename U, typename E = T>
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void serializeId(const std::string & fieldName, T & value, const U & defaultValue)
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{
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doSerializeInternal<T, U, si32>(fieldName, value, defaultValue, &E::decode, &E::encode);
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}
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///si32-convertible identifier vector <-> Json array of string
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template <typename T, typename E = T>
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void serializeIdArray(const std::string & fieldName, std::vector<T> & value)
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{
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std::vector<si32> temp;
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if(saving)
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{
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temp.reserve(value.size());
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for(const T & vitem : value)
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{
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si32 item = static_cast<si32>(vitem);
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temp.push_back(item);
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}
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}
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serializeInternal(fieldName, temp, &E::decode, &E::encode);
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if(!saving)
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{
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value.clear();
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value.reserve(temp.size());
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for(const si32 item : temp)
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{
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T vitem = static_cast<T>(item);
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value.push_back(vitem);
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}
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}
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}
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///si32-convertible identifier set <-> Json array of string
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template <typename T, typename U = T>
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void serializeIdArray(const std::string & fieldName, std::set<T> & value)
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{
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std::vector<si32> temp;
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if(saving)
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{
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temp.reserve(value.size());
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for(const T & vitem : value)
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{
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si32 item = static_cast<si32>(vitem);
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temp.push_back(item);
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}
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}
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serializeInternal(fieldName, temp, &U::decode, &U::encode);
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if(!saving)
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{
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value.clear();
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for(const si32 item : temp)
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{
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T vitem = static_cast<T>(item);
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value.insert(vitem);
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}
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}
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}
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///si32-convertible identifier set <-> Json array of string
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///Type U is only used for code & decode
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///TODO: Auto deduce U based on T?
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template <typename T, typename U = T>
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void serializeIdArray(const std::string & fieldName, std::set<T> & value, const std::set<T> & defaultValue)
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{
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std::vector<si32> temp;
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if(saving && value != defaultValue)
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{
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temp.reserve(value.size());
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for(const T & vitem : value)
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{
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si32 item = static_cast<si32>(vitem);
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temp.push_back(item);
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}
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serializeInternal(fieldName, temp, &U::decode, &U::encode);
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}
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if(!saving)
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{
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JsonNode node;
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serializeRaw(fieldName, node, std::nullopt);
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if(node.Vector().empty())
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{
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value = defaultValue;
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}
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else
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{
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value.clear();
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for(const auto & id : node.Vector())
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{
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VLC->modh->identifiers.requestIdentifier(U::entityType(), id, [&value](int32_t identifier)
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{
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value.emplace(identifier);
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});
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}
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}
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}
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}
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///bitmask <-> Json array of string
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template <typename T, int Size>
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void serializeIdArray(const std::string & fieldName, T & value, const T & defaultValue, const TDecoder & decoder, const TEncoder & encoder)
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{
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static_assert(8 * sizeof(T) >= Size, "Mask size too small");
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std::vector<si32> temp;
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temp.reserve(Size);
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if(saving && value != defaultValue)
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{
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for(si32 i = 0; i < Size; i++)
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if(value & (1 << i))
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temp.push_back(i);
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serializeInternal(fieldName, temp, decoder, encoder);
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}
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if(!saving)
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{
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serializeInternal(fieldName, temp, decoder, encoder);
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if(temp.empty())
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value = defaultValue;
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else
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{
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value = 0;
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for(auto i : temp)
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value |= (1 << i);
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}
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}
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}
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///si32-convertible instance identifier <-> Json string
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template <typename T>
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void serializeInstance(const std::string & fieldName, T & value, const T & defaultValue)
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{
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const TDecoder decoder = std::bind(&IInstanceResolver::decode, instanceResolver, _1);
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const TEncoder endoder = std::bind(&IInstanceResolver::encode, instanceResolver, _1);
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serializeId<T>(fieldName, value, defaultValue, decoder, endoder);
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}
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///any serializable object <-> Json struct
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template <typename T>
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void serializeStruct(const std::string & fieldName, T & value)
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{
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auto guard = enterStruct(fieldName);
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value.serializeJson(*this);
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}
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virtual void serializeRaw(const std::string & fieldName, JsonNode & value, const std::optional<std::reference_wrapper<const JsonNode>> defaultValue) = 0;
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protected:
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JsonSerializeFormat(const IInstanceResolver * instanceResolver_, const bool saving_, const bool updating_);
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///bool <-> Json bool, indeterminate is default
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virtual void serializeInternal(const std::string & fieldName, boost::logic::tribool & value) = 0;
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///Numeric Id <-> String Id
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virtual void serializeInternal(const std::string & fieldName, si32 & value, const std::optional<si32> & defaultValue, const TDecoder & decoder, const TEncoder & encoder) = 0;
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///Numeric Id vector <-> String Id vector
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virtual void serializeInternal(const std::string & fieldName, std::vector<si32> & value, const TDecoder & decoder, const TEncoder & encoder) = 0;
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///Numeric <-> Json double
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virtual void serializeInternal(const std::string & fieldName, double & value, const std::optional<double> & defaultValue) = 0;
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///Numeric <-> Json integer
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virtual void serializeInternal(const std::string & fieldName, si64 & value, const std::optional<si64> & defaultValue) = 0;
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///Enum/Numeric <-> Json string enum
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virtual void serializeInternal(const std::string & fieldName, si32 & value, const std::optional<si32> & defaultValue, const std::vector<std::string> & enumMap) = 0;
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virtual void pop() = 0;
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virtual void pushStruct(const std::string & fieldName) = 0;
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virtual void pushArray(const std::string & fieldName) = 0;
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virtual void pushArrayElement(const size_t index) = 0;
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virtual void pushField(const std::string & fieldName) = 0;
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virtual void resizeCurrent(const size_t newSize, JsonNode::JsonType type){};
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virtual void serializeInternal(std::string & value) = 0;
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virtual void serializeInternal(int64_t & value) = 0;
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private:
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const IInstanceResolver * instanceResolver;
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template<typename VType, typename DVType, typename IType, typename... Args>
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void doSerializeInternal(const std::string & fieldName, VType & value, const std::optional<DVType> & defaultValue, Args... args)
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{
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const std::optional<IType> tempDefault = defaultValue ? std::optional<IType>(static_cast<IType>(defaultValue.value())) : std::nullopt;
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auto temp = static_cast<IType>(value);
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serializeInternal(fieldName, temp, tempDefault, args...);
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if(!saving)
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value = static_cast<VType>(temp);
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}
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template<typename VType, typename IType, typename... Args>
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void dispatchOptional(const std::string & fieldName, std::optional<VType> & value, Args... args)
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{
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if(saving)
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{
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if(value)
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{
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auto temp = static_cast<IType>(value.value());
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pushField(fieldName);
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serializeInternal(temp, args...);
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pop();
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}
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}
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else
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{
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pushField(fieldName);
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if(getCurrent().getType() == JsonNode::JsonType::DATA_NULL)
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{
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value = std::nullopt;
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}
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else
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{
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IType temp = IType();
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serializeInternal(temp, args...);
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value = std::make_optional(temp);
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}
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pop();
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}
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}
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friend class JsonSerializeHelper;
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friend class JsonStructSerializer;
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friend class JsonArraySerializer;
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};
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template <typename Container>
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void JsonArraySerializer::syncSize(Container & c, JsonNode::JsonType type)
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{
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if(owner->saving)
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resize(c.size(), type);
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else
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c.resize(size());
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}
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template <typename T>
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void JsonArraySerializer::serializeInt(const size_t index, T & value)
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{
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auto temp = static_cast<int64_t>(value);
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serializeInt64(index, temp);
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if (!owner->saving)
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value = static_cast<T>(temp);
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};
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VCMI_LIB_NAMESPACE_END
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