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#pragma once
#include "config.h"
#include <util/generic/algorithm.h>
#include <util/generic/typetraits.h>
#include <util/stream/str.h>
struct TConfigTraits {
using TValue = NConfig::TConfig;
using TValueRef = const TValue*;
using TConstValueRef = TValueRef;
using TStringType = TString;
// anyvalue defaults
template <class T>
static inline TValue Value(const T& t) {
return TValue(NConfig::ConstructValue(t));
}
template <class T>
static inline TValue Value(std::initializer_list<T> list) {
NConfig::TArray result;
for (const auto& t : list) {
result.push_back(TValue(NConfig::ConstructValue(t)));
}
return TValue(NConfig::ConstructValue(std::move(result)));
}
static inline TConstValueRef Ref(const TValue& v) {
return &v;
}
// common ops
static inline bool IsNull(TConstValueRef v) {
return v->IsNull();
}
static inline TString ToJson(TConstValueRef v) {
TStringStream str;
v->ToJson(str);
return str.Str();
}
// struct ops
static inline TConstValueRef GetField(TConstValueRef v, const TStringBuf& name) {
return &(*v)[name];
}
// array ops
static bool IsArray(TConstValueRef v) {
return v->IsA<NConfig::TArray>();
}
using TArrayIterator = size_t;
static inline TConstValueRef ArrayElement(TConstValueRef v, TArrayIterator n) {
return &(*v)[n];
}
static inline size_t ArraySize(TConstValueRef v) {
return v->GetArraySize();
}
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->IsA<NConfig::TDict>();
}
static inline TConstValueRef DictElement(TConstValueRef v, TStringBuf key) {
return &(*v)[key];
}
static inline size_t DictSize(TConstValueRef v) {
return v->Get<NConfig::TDict>().size();
}
using TDictIterator = NConfig::TDict::const_iterator;
static inline TDictIterator DictBegin(TConstValueRef v) {
return v->Get<NConfig::TDict>().begin();
}
static inline TDictIterator DictEnd(TConstValueRef v) {
return v->Get<NConfig::TDict>().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;
}
// generic get
template <typename T>
static inline void Get(TConstValueRef v, T def, T& t) {
t = v->As<T>(def);
}
static inline bool Get(TConstValueRef v, double def, double& t) {
if (v->IsNumeric()) {
t = v->As<double>(def);
return true;
}
t = def;
return false;
}
template <typename T>
static inline void Get(TConstValueRef v, T& t) {
t = v->As<T>();
}
template <typename T>
static inline bool IsValidPrimitive(const T&, TConstValueRef v) {
if (v->IsNull()) {
return true;
}
try {
v->As<T>();
return true;
} catch (const NConfig::TTypeMismatch&) {
} catch (const TBadCastException&) {
}
return false;
}
template <class T>
static inline void Set(TValueRef v, T&& t) {
v->GetNonConstant<std::remove_const_t<std::remove_reference_t<T>>>() = t;
}
// validation ops
static inline TVector<TString> GetKeys(TConstValueRef v) {
TVector<TString> res;
for (const auto& it : v->Get<NConfig::TDict>()) {
res.push_back(it.first);
}
Sort(res.begin(), res.end());
return res;
}
};
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