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#pragma once
#include "json_value.h"
#include "json_reader.h"
#include "json_writer.h"
#include <util/generic/algorithm.h>
struct TJsonTraits {
using TValue = NJson::TJsonValue;
using TValueRef = TValue*;
using TConstValueRef = const TValue*;
using TStringType = TStringBuf;
// anyvalue defaults
template <class T>
static inline TValue Value(T&& t) {
return TValue(std::forward<T>(t));
}
template <class T>
static inline TValue Value(std::initializer_list<T> t) {
TValue result(NJson::JSON_ARRAY);
result.GetArraySafe() = NJson::TJsonValue::TArray(t.begin(), t.end());
return result;
}
static inline TValueRef Ref(TValue& v) {
return &v;
}
static inline TConstValueRef Ref(const TValue& v) {
return &v;
}
// common ops
static inline bool IsNull(TConstValueRef v) {
return v->GetType() == NJson::JSON_UNDEFINED || v->IsNull();
}
static inline TString ToJson(TConstValueRef v) {
return NJson::WriteJson(v, false);
}
// struct ops
static inline TValueRef GetField(TValueRef v, const TStringBuf& name) {
return &(*v)[name];
}
static inline TConstValueRef GetField(TConstValueRef v, const TStringBuf& name) {
return &(*v)[name];
}
// array ops
static bool IsArray(TConstValueRef v) {
return v->IsArray();
}
static inline void ArrayClear(TValueRef v) {
v->SetType(NJson::JSON_NULL);
v->SetType(NJson::JSON_ARRAY);
}
using TArrayIterator = size_t;
static inline TValueRef ArrayElement(TValueRef v, TArrayIterator n) {
return &(*v)[n];
}
static inline TConstValueRef ArrayElement(TConstValueRef v, TArrayIterator n) {
return &(*v)[n];
}
static inline size_t ArraySize(TConstValueRef v) {
return v->GetArray().size();
}
static inline TArrayIterator ArrayBegin(TConstValueRef) {
return 0;
}
static inline TArrayIterator ArrayEnd(TConstValueRef v) {
return ArraySize(v);
}
// dict ops
static bool IsDict(TConstValueRef v) {
return v->IsMap();
}
static inline void DictClear(TValueRef v) {
v->SetType(NJson::JSON_NULL);
v->SetType(NJson::JSON_MAP);
}
static inline TValueRef DictElement(TValueRef v, TStringBuf key) {
return &(*v)[key];
}
static inline TConstValueRef DictElement(TConstValueRef v, TStringBuf key) {
return &(*v)[key];
}
static inline size_t DictSize(TConstValueRef v) {
return v->GetMap().size();
}
using TDictIterator = NJson::TJsonValue::TMapType::const_iterator;
static inline TDictIterator DictBegin(TConstValueRef v) {
return v->GetMap().begin();
}
static inline TDictIterator DictEnd(TConstValueRef v) {
return v->GetMap().end();
}
static inline TStringBuf DictIteratorKey(TConstValueRef /*dict*/, const TDictIterator& it) {
return it->first;
}
static inline TConstValueRef DictIteratorValue(TConstValueRef /*dict*/, const TDictIterator& it) {
return &it->second;
}
// boolean ops
static inline void Get(TConstValueRef v, bool def, bool& b) {
b =
v->GetType() == NJson::JSON_UNDEFINED ? def : v->IsNull() ? def : v->GetBooleanRobust();
}
static inline void Get(TConstValueRef v, bool& b) {
Get(v, false, b);
}
static inline bool IsValidPrimitive(const bool&, TConstValueRef v) {
return v->IsBoolean();
}
#define INTEGER_OPS(type, checkOp, getOp) \
static inline void Get(TConstValueRef v, type def, type& i) { \
i = v->checkOp() ? v->getOp() : def; \
} \
static inline void Get(TConstValueRef v, type& i) { \
i = v->getOp(); \
} \
static inline bool IsValidPrimitive(const type&, TConstValueRef v) { \
return v->checkOp() && v->getOp() >= Min<type>() && v->getOp() <= Max<type>(); \
}
INTEGER_OPS(i8, IsInteger, GetInteger)
INTEGER_OPS(i16, IsInteger, GetInteger)
INTEGER_OPS(i32, IsInteger, GetInteger)
INTEGER_OPS(i64, IsInteger, GetInteger)
INTEGER_OPS(ui8, IsUInteger, GetUInteger)
INTEGER_OPS(ui16, IsUInteger, GetUInteger)
INTEGER_OPS(ui32, IsUInteger, GetUInteger)
INTEGER_OPS(ui64, IsUInteger, GetUInteger)
#undef INTEGER_OPS
// double ops
static inline bool Get(TConstValueRef v, double def, double& d) {
if (v->IsDouble()) {
d = v->GetDouble();
return true;
}
d = def;
return false;
}
static inline void Get(TConstValueRef v, double& d) {
d = v->GetDouble();
}
static inline bool IsValidPrimitive(const double&, TConstValueRef v) {
return v->IsDouble();
}
// string ops
static inline void Get(TConstValueRef v, TStringBuf def, TStringBuf& s) {
s = v->IsString() ? v->GetString() : def;
}
static inline void Get(TConstValueRef v, TStringBuf& s) {
s = v->GetString();
}
static inline bool IsValidPrimitive(const TStringBuf&, TConstValueRef v) {
return v->IsString();
}
// generic set
template <class T>
static inline void Set(TValueRef v, T&& t) {
v->SetValue(t);
}
static inline void Clear(TValueRef v) {
v->SetType(NJson::JSON_NULL);
}
// validation ops
static inline TVector<TString> GetKeys(TConstValueRef v) {
TVector<TString> res;
for (const auto& it : v->GetMap()) {
res.push_back(it.first);
}
Sort(res.begin(), res.end());
return res;
}
template <typename T>
static inline bool IsValidPrimitive(const T&, TConstValueRef) {
return false;
}
};
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