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#pragma once
#include "config.h"
#include <util/string/cast.h>
#include <util/generic/maybe.h>
#include <util/generic/string.h>
#include <util/generic/vector.h>
#include <util/generic/yexception.h>
class IInputStream;
namespace NConfig {
class IConfig {
public:
class IValue {
public:
virtual TString AsString() = 0;
virtual bool AsBool() = 0;
virtual IConfig* AsSubConfig() = 0;
virtual bool IsContainer() const = 0;
};
class IFunc {
public:
inline void Consume(const TString& key, IValue* value) {
DoConsume(key, value);
}
virtual ~IFunc() = default;
private:
virtual void DoConsume(const TString& key, IValue* value) {
(void)key;
(void)value;
}
};
virtual ~IConfig() = default;
inline void ForEach(IFunc* func) {
DoForEach(func);
}
virtual void DumpJson(IOutputStream& stream) const = 0;
virtual void DumpLua(IOutputStream& stream) const = 0;
private:
virtual void DoForEach(IFunc* func) = 0;
};
template <class T>
static inline bool ParseFromString(const TString& s, TMaybe<T>& t) {
t.ConstructInPlace(FromString<T>(s));
return true;
}
template <class T>
static inline bool ParseFromString(const TString& s, THolder<T>& t) {
t = MakeHolder<T>(FromString<T>(s));
return true;
}
template <class T>
static inline bool ParseFromString(const TString& s, T& t) {
t = FromString<T>(s);
return true;
}
THolder<IConfig> ConfigParser(IInputStream& in, const TGlobals& globals = TGlobals());
}
#define START_PARSE \
void DoConsume(const TString& key, NConfig::IConfig::IValue* value) override { \
(void)key; \
(void)value;
#define END_PARSE \
ythrow NConfig::TConfigParseError() << "unsupported key(" << key.Quote() << ")"; \
}
#define ON_KEY(k, v) if (key == k && NConfig::ParseFromString(value->AsString(), v))
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