64 lines
2.9 KiB
C++
64 lines
2.9 KiB
C++
#ifndef VALUE_DETAIL_NODE_REF_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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#define VALUE_DETAIL_NODE_REF_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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#if defined(_MSC_VER) || (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || (__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
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#pragma once
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#endif
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#include "yaml-cpp/dll.h"
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#include "yaml-cpp/value/type.h"
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#include "yaml-cpp/value/ptr.h"
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#include "yaml-cpp/value/detail/node_data.h"
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#include <boost/utility.hpp>
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namespace YAML
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{
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namespace detail
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{
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class node_ref: private boost::noncopyable
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{
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public:
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node_ref() {}
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ValueType::value type() const { return m_pData ? m_pData->type() : ValueType::Undefined; }
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const std::string& scalar() const { return m_pData ? m_pData->scalar() : node_data::empty_scalar; }
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void set_data(const node_ref& rhs) { m_pData = rhs.m_pData; }
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void set_type(ValueType::value type) { ensure_data_exists(); m_pData->set_type(type); }
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void set_null() { ensure_data_exists(); m_pData->set_null(); }
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void set_scalar(const std::string& scalar) { ensure_data_exists(); m_pData->set_scalar(scalar); }
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// size/iterator
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std::size_t size() const { return m_pData ? m_pData->size() : 0; }
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const_iterator begin(shared_memory_holder pMemory) const { return m_pData ? static_cast<const node_data&>(*m_pData).begin(pMemory) : const_iterator(); }
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iterator begin(shared_memory_holder pMemory) {return m_pData ? m_pData->begin(pMemory) : iterator(); }
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const_iterator end(shared_memory_holder pMemory) const { return m_pData ? static_cast<const node_data&>(*m_pData).end(pMemory) : const_iterator(); }
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iterator end(shared_memory_holder pMemory) {return m_pData ? m_pData->end(pMemory) : iterator(); }
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// sequence
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void append(node& node, shared_memory_holder pMemory) { ensure_data_exists(); m_pData->append(node, pMemory); }
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// indexing
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template<typename Key> node& get(const Key& key, shared_memory_holder pMemory) const { return m_pData ? static_cast<const node_data&>(*m_pData).get(key, pMemory) : pMemory->create_node(); }
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template<typename Key> node& get(const Key& key, shared_memory_holder pMemory) { ensure_data_exists(); return m_pData->get(key, pMemory); }
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template<typename Key> bool remove(const Key& key, shared_memory_holder pMemory) { return m_pData ? m_pData->remove(key, pMemory) : false; }
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node& get(node& key, shared_memory_holder pMemory) const { return m_pData ? static_cast<const node_data&>(*m_pData).get(key, pMemory) : pMemory->create_node(); }
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node& get(node& key, shared_memory_holder pMemory) { ensure_data_exists(); return m_pData->get(key, pMemory); }
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bool remove(node& key, shared_memory_holder pMemory) { return m_pData ? m_pData->remove(key, pMemory) : false; }
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private:
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void ensure_data_exists() { if(!m_pData) m_pData.reset(new node_data); }
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private:
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shared_node_data m_pData;
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};
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}
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}
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#endif // VALUE_DETAIL_NODE_REF_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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