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// **********************************************************************
//
// Copyright (c) 2003-present ZeroC, Inc. All rights reserved.
//
// **********************************************************************
#ifndef ICE_VALUE_H
#define ICE_VALUE_H
#ifdef ICE_CPP11_MAPPING // C++11 mapping
#include <Ice/ValueF.h>
#include <Ice/SlicedDataF.h>
#include <Ice/OutputStream.h>
#include <Ice/InputStream.h>
namespace Ice
{
/**
* The base class for instances of Slice classes.
* \headerfile Ice/Ice.h
*/
class ICE_API Value
{
public:
// See "Rule of zero" at http://en.cppreference.com/w/cpp/language/rule_of_three
// The virtual dtor is actually not stricly necessary since Values are always stored
// in std::shared_ptr
Value() = default;
Value(const Value&) = default;
Value(Value&&) = default;
Value& operator=(const Value&) = default;
Value& operator=(Value&&) = default;
virtual ~Value() = default;
/**
* The Ice run time invokes this method prior to marshaling an object's data members. This allows a subclass
* to override this method in order to validate its data members.
*/
virtual void ice_preMarshal();
/**
* The Ice run time invokes this method vafter unmarshaling an object's data members. This allows a
* subclass to override this method in order to perform additional initialization.
*/
virtual void ice_postUnmarshal();
/**
* Obtains the Slice type ID of the most-derived class supported by this object.
* @return The type ID.
*/
virtual std::string ice_id() const;
/**
* Obtains the Slice type ID of this type.
* @return The return value is always "::Ice::Object".
*/
static const std::string& ice_staticId();
/**
* Returns a shallow copy of the object.
* @return The cloned value.
*/
std::shared_ptr<Value> ice_clone() const;
/**
* Obtains the sliced data associated with this instance.
* @return The sliced data if the value has a preserved-slice base class and has been sliced during
* unmarshaling of the value, nil otherwise.
*/
virtual std::shared_ptr<SlicedData> ice_getSlicedData() const;
/// \cond STREAM
virtual void _iceWrite(Ice::OutputStream*) const;
virtual void _iceRead(Ice::InputStream*);
/// \endcond
protected:
/// \cond INTERNAL
virtual std::shared_ptr<Value> _iceCloneImpl() const = 0;
/// \endcond
/// \cond STREAM
virtual void _iceWriteImpl(Ice::OutputStream*) const {}
virtual void _iceReadImpl(Ice::InputStream*) {}
/// \endcond
};
/// \cond INTERNAL
template<typename T, typename Base> class ValueHelper : public Base
{
public:
using Base::Base;
ValueHelper() = default;
std::shared_ptr<T> ice_clone() const
{
return std::static_pointer_cast<T>(_iceCloneImpl());
}
virtual std::string ice_id() const override
{
return T::ice_staticId();
}
protected:
virtual std::shared_ptr<Value> _iceCloneImpl() const override
{
return std::make_shared<T>(static_cast<const T&>(*this));
}
virtual void _iceWriteImpl(Ice::OutputStream* os) const override
{
os->startSlice(T::ice_staticId(), -1, std::is_same<Base, Ice::Value>::value ? true : false);
Ice::StreamWriter<T, Ice::OutputStream>::write(os, static_cast<const T&>(*this));
os->endSlice();
Base::_iceWriteImpl(os);
}
virtual void _iceReadImpl(Ice::InputStream* is) override
{
is->startSlice();
Ice::StreamReader<T, Ice::InputStream>::read(is, static_cast<T&>(*this));
is->endSlice();
Base::_iceReadImpl(is);
}
};
/// \endcond
}
#endif // C++11 mapping end
#endif
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