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22 lines
631 B
C++
22 lines
631 B
C++
#pragma once
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#include "links/BaseLink.h"
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#include <stdexcept>
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/// \brief Связь "один-к-одному" между элементами.
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/// Позволяет добавить только одного дочернего элемента.
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/// \tparam TElem Тип элемента.
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template <class TElem>
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class OneToOneLink : public BaseLink<TElem> {
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public:
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using ElemPtr = std::shared_ptr<TElem>;
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OneToOneLink(ElemPtr e) : BaseLink<TElem>(e) {}
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void addChild(const ElemPtr& child) override {
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if (!this->children_.empty())
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throw std::logic_error("Too many children");
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BaseLink<TElem>::addChild(child);
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}
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};
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