mirror of
https://github.com/ultimatepp/ultimatepp.git
synced 2026-05-15 22:02:49 -06:00
293 lines
8.7 KiB
C++
293 lines
8.7 KiB
C++
Value ParseJSON(CParser& p);
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Value ParseJSON(const char *s);
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inline String AsJSON(int i) { return IsNull(i) ? "null" : AsString(i); }
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inline String AsJSON(double n) { return IsNull(n) ? "null" : AsString(n); }
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inline String AsJSON(bool b) { return b ? "true" : "false"; }
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inline String AsJSON(const String& s) { return AsCString(s); }
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inline String AsJSON(const WString& s) { return AsCString(s.ToString()); }
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inline String AsJSON(const char *s) { return AsCString(s); }
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String AsJSON(const Value& v, const String& indent, bool pretty);
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String AsJSON(const Value& v, bool pretty = false);
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class JsonArray;
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class Json {
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String text;
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Json& CatRaw(const char *key, const String& val) {
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if(text.GetCount())
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text << ',';
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text << '\"' << key << "\":" << val;
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return *this;
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}
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public:
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String ToString() const { return "{" + text + "}"; }
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String operator~() const { return ToString(); }
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operator String() const { return ToString(); }
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Json& operator()(const char *key, const Value& value) { return CatRaw(key, AsJSON(value)); }
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Json& operator()(const char *key, int i) { return CatRaw(key, AsJSON(i)); }
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Json& operator()(const char *key, double n) { return CatRaw(key, AsJSON(n)); }
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Json& operator()(const char *key, bool b) { return CatRaw(key, AsJSON(b)); }
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Json& operator()(const char *key, const String& s) { return CatRaw(key, AsJSON(s)); }
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Json& operator()(const char *key, const WString& s) { return CatRaw(key, AsJSON(s)); }
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Json& operator()(const char *key, const char *s) { return CatRaw(key, AsJSON(s)); }
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Json& operator()(const char *key, const Json& object) { return CatRaw(key, ~object); }
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Json& operator()(const char *key, const JsonArray& array);
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Json() {}
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Json(const char *key, const Value& value) { CatRaw(key, AsJSON(value)); }
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Json(const char *key, int i) { CatRaw(key, AsJSON(i)); }
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Json(const char *key, double n) { CatRaw(key, AsJSON(n)); }
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Json(const char *key, bool b) { CatRaw(key, AsJSON(b)); }
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Json(const char *key, const String& s) { CatRaw(key, AsJSON(s)); }
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Json(const char *key, const WString& s) { CatRaw(key, AsJSON(s)); }
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Json(const char *key, const char *s) { CatRaw(key, AsJSON(s)); }
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Json(const char *key, const Json& object) { CatRaw(key, ~object); }
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Json(const char *key, const JsonArray& array) { operator()(key, array); }
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};
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class JsonArray {
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String text;
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JsonArray& CatRaw(const String& val) {
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if(text.GetCount())
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text << ',';
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text << val;
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return *this;
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}
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public:
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String ToString() const { return "[" + text + "]"; }
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String operator~() const { return ToString(); }
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operator String() const { return ToString(); }
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JsonArray& operator<<(const Value& value) { return CatRaw(AsJSON(value)); }
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JsonArray& operator<<(int i) { return CatRaw(AsJSON(i)); }
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JsonArray& operator<<(double n) { return CatRaw(AsJSON(n)); }
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JsonArray& operator<<(bool b) { return CatRaw(AsJSON(b)); }
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JsonArray& operator<<(const String& s) { return CatRaw(AsJSON(s)); }
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JsonArray& operator<<(const WString& s) { return CatRaw(AsJSON(s)); }
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JsonArray& operator<<(const char *s) { return CatRaw(AsJSON(s)); }
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JsonArray& operator<<(const Json& object) { return CatRaw(~object); }
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JsonArray& operator<<(const JsonArray& array) { return CatRaw(~array); }
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JsonArray() {}
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};
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inline Json& Json::operator()(const char *key, const JsonArray& array)
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{
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return CatRaw(key, array);
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}
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class JsonIO {
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const Value *src;
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One<ValueMap> map;
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Value tgt;
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public:
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bool IsLoading() const { return src; }
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bool IsStoring() const { return !src; }
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const Value& Get() const { ASSERT(IsLoading()); return *src; }
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void Set(const Value& v) { ASSERT(IsStoring() && !map); tgt = v; }
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void Put(Value& v) { ASSERT(IsStoring()); if(map) v = *map; else v = tgt; }
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Value GetResult() const { ASSERT(IsStoring()); return map ? Value(*map) : tgt; }
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template <class T>
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JsonIO& operator()(const char *key, T& value);
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JsonIO(const Value& src) : src(&src) {}
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JsonIO() { src = NULL; }
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};
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struct JsonizeError : Exc {
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JsonizeError(const String& s) : Exc(s) {}
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};
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template <class T>
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void Jsonize(JsonIO& io, T& var)
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{
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var.Jsonize(io);
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}
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template <class T>
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JsonIO& JsonIO::operator()(const char *key, T& value)
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{
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if(IsLoading()) {
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const Value& v = (*src)[key];
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if(!v.IsVoid()) {
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JsonIO jio(v);
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Jsonize(jio, value);
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}
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}
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else {
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ASSERT(tgt.IsVoid());
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if(!map)
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map.Create();
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JsonIO jio;
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Jsonize(jio, value);
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if(jio.map)
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map->Add(key, *jio.map);
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else
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map->Add(key, jio.tgt);
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}
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return *this;
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}
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template <class T>
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Value StoreAsJsonValue(const T& var)
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{
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JsonIO io;
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Jsonize(io, const_cast<T&>(var));
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return io.GetResult();
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}
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template <class T>
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void LoadFromJsonValue(T& var, const Value& x)
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{
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JsonIO io(x);
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Jsonize(io, var);
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}
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template <class T>
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String StoreAsJson(const T& var)
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{
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return AsJSON(StoreAsJsonValue(var));
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}
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template <class T>
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bool LoadFromJson(T& var, const char *json)
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{
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try {
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LoadFromJsonValue(var, ParseJSON(json));
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}
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catch(CParser::Error) {
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return false;
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}
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catch(JsonizeError) {
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return false;
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}
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return true;
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}
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template<> void Jsonize(JsonIO& io, int& var);
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template<> void Jsonize(JsonIO& io, int64& var);
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template<> void Jsonize(JsonIO& io, double& var);
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template<> void Jsonize(JsonIO& io, bool& var);
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template<> void Jsonize(JsonIO& io, String& var);
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template<> void Jsonize(JsonIO& io, WString& var);
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template<> void Jsonize(JsonIO& io, Date& var);
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template<> void Jsonize(JsonIO& io, Time& var);
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template <class T, class V>
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void JsonizeArray(JsonIO& io, T& array)
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{
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if(io.IsLoading()) {
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const Value& va = io.Get();
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array.SetCount(va.GetCount());
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for(int i = 0; i < va.GetCount(); i++) {
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JsonIO jio(va[i]);
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Jsonize(jio, array[i]);
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}
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}
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else {
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Vector<Value> va;
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va.SetCount(array.GetCount());
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for(int i = 0; i < array.GetCount(); i++) {
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JsonIO jio;
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Jsonize(jio, array[i]);
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jio.Put(va[i]);
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}
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io.Set(ValueArray(va));
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}
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}
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template <class T>
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void Jsonize(JsonIO& io, Vector<T>& var)
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{
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JsonizeArray<Vector<T>, T>(io, var);
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}
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template <class T>
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void Jsonize(JsonIO& io, Array<T>& var)
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{
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JsonizeArray<Array<T>, T>(io, var);
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}
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template <class T, class K, class V>
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void JsonizeMap(JsonIO& io, T& map, const char *keyid, const char *valueid)
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{
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if(io.IsLoading()) {
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map.Clear();
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const Value& va = io.Get();
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map.Reserve(va.GetCount());
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for(int i = 0; i < va.GetCount(); i++) {
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K key;
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V value;
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LoadFromJsonValue(key, va[i][keyid]);
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LoadFromJsonValue(value, va[i][valueid]);
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map.Add(key, value);
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}
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}
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else {
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Vector<Value> va;
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va.SetCount(map.GetCount());
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for(int i = 0; i < map.GetCount(); i++)
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if(!map.IsUnlinked(i)) {
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ValueMap item;
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item.Add(keyid, StoreAsJsonValue(map.GetKey(i)));
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item.Add(valueid, StoreAsJsonValue(map[i]));
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va[i] = item;
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}
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io.Set(ValueArray(va));
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}
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}
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template <class K, class V, class H>
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void Jsonize(JsonIO& io, VectorMap<K, V, H>& map)
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{
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JsonizeMap(io, map, "key", "value");
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}
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template <class K, class V, class H>
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void Jsonize(JsonIO& io, ArrayMap<K, V, H>& map)
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{
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JsonizeMap<ArrayMap<K, V, H>, K, V>(io, map, "key", "value");
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}
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template <class T, class V>
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void JsonizeIndex(JsonIO& io, T& index)
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{
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if(io.IsLoading()) {
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const Value& va = io.Get();
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index.Reserve(va.GetCount());
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for(int i = 0; i < va.GetCount(); i++) {
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V v;
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LoadFromJsonValue(v, va[i]);
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index.Add(v);
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}
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}
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else {
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Vector<Value> va;
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for(int i = 0; i < index.GetCount(); i++)
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if(!index.IsUnlinked(i))
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va.Add(StoreAsJsonValue(index[i]));
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io.Set(ValueArray(va));
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}
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}
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template <class T>
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void Jsonize(JsonIO& io, Index<T>& var)
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{
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JsonizeIndex<Index<T>, T>(io, var);
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}
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template <class T>
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void Jsonize(JsonIO& io, ArrayIndex<T>& var)
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{
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JsonizeIndex<ArrayIndex<T>, T>(io, var);
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}
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