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Added Node::Clone function

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This commit is contained in:
Jesse Beder
2009-08-24 20:10:42 +00:00
parent 8e636436f8
commit abe0af76c5
11 changed files with 78 additions and 2 deletions
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5
include/node.h
View File

@@ -14,6 +14,7 @@
#include <string>
#include <vector>
#include <map>
#include <memory>
namespace YAML
{
@@ -30,6 +31,7 @@ namespace YAML
~Node();
void Clear();
std::auto_ptr<Node> Clone() const;
void Parse(Scanner *pScanner, const ParserState& state);
CONTENT_TYPE GetType() const;
@@ -90,6 +92,9 @@ namespace YAML
template <typename T>
const Node *FindValueForKey(const T& key) const;
// helper for cloning
Node(const Mark& mark, const std::string& anchor, const std::string& tag, const Content *pContent);
// helpers for parsing
void ParseHeader(Scanner *pScanner, const ParserState& state);
void ParseTag(Scanner *pScanner, const ParserState& state);

5
src/aliascontent.cpp
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@@ -8,6 +8,11 @@ namespace YAML
{
}
Content *AliasContent::Clone() const
{
return 0; // TODO: how to clone an alias?
}
void AliasContent::Parse(Scanner * /*pScanner*/, const ParserState& /*state*/)
{
}

2
src/aliascontent.h
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@@ -13,6 +13,8 @@ namespace YAML
public:
AliasContent(Content *pNodeContent);
virtual Content *Clone() const;
virtual void Parse(Scanner* pScanner, const ParserState& state);
virtual void Write(Emitter&) const;

2
src/content.h
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@@ -26,6 +26,8 @@ namespace YAML
Content();
virtual ~Content();
virtual Content *Clone() const = 0;
virtual void Parse(Scanner *pScanner, const ParserState& state) = 0;
virtual void Write(Emitter& out) const = 0;

14
src/map.cpp
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@@ -13,6 +13,15 @@ namespace YAML
{
}
Map::Map(const node_map& data)
{
for(node_map::const_iterator it=data.begin();it!=data.end();++it) {
std::auto_ptr<Node> pKey = it->first->Clone();
std::auto_ptr<Node> pValue = it->second->Clone();
m_data[pKey.release()] = pValue.release();
}
}
Map::~Map()
{
Clear();
@@ -27,6 +36,11 @@ namespace YAML
m_data.clear();
}
Content *Map::Clone() const
{
return new Map(m_data);
}
bool Map::GetBegin(std::map <Node *, Node *, ltnode>::const_iterator& it) const
{
it = m_data.begin();

9
src/map.h
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@@ -13,11 +13,17 @@ namespace YAML
class Map: public Content
{
private:
typedef std::map <Node *, Node *, ltnode> node_map;
public:
Map();
Map(const node_map& data);
virtual ~Map();
void Clear();
virtual Content *Clone() const;
virtual bool GetBegin(std::map <Node *, Node *, ltnode>::const_iterator& it) const;
virtual bool GetEnd(std::map <Node *, Node *, ltnode>::const_iterator& it) const;
virtual void Parse(Scanner *pScanner, const ParserState& state);
@@ -35,8 +41,7 @@ namespace YAML
void ParseBlock(Scanner *pScanner, const ParserState& state);
void ParseFlow(Scanner *pScanner, const ParserState& state);
protected:
typedef std::map <Node *, Node *, ltnode> node_map;
private:
node_map m_data;
};
}

15
src/node.cpp
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@@ -24,6 +24,13 @@ namespace YAML
{
}
Node::Node(const Mark& mark, const std::string& anchor, const std::string& tag, const Content *pContent)
: m_mark(mark), m_anchor(anchor), m_tag(tag), m_pContent(0), m_alias(false), m_pIdentity(this), m_referenced(false)
{
if(m_pContent)
m_pContent = pContent->Clone();
}
Node::~Node()
{
Clear();
@@ -39,6 +46,14 @@ namespace YAML
m_tag.clear();
}
std::auto_ptr<Node> Node::Clone() const
{
if(m_alias)
throw std::runtime_error("yaml-cpp: Can't clone alias"); // TODO: what to do about aliases?
return std::auto_ptr<Node> (new Node(m_mark, m_anchor, m_tag, m_pContent));
}
void Node::Parse(Scanner *pScanner, const ParserState& state)
{
Clear();

10
src/scalar.cpp
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@@ -12,10 +12,19 @@ namespace YAML
{
}
Scalar::Scalar(const std::string& data): m_data(data)
{
}
Scalar::~Scalar()
{
}
Content *Scalar::Clone() const
{
return new Scalar(m_data);
}
void Scalar::Parse(Scanner *pScanner, const ParserState& /*state*/)
{
Token& token = pScanner->peek();
@@ -43,3 +52,4 @@ namespace YAML
return 0;
}
}

4
src/scalar.h
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@@ -13,8 +13,11 @@ namespace YAML
{
public:
Scalar();
Scalar(const std::string& data);
virtual ~Scalar();
virtual Content *Clone() const;
virtual void Parse(Scanner *pScanner, const ParserState& state);
virtual void Write(Emitter& out) const;
@@ -38,3 +41,4 @@ namespace YAML
}
#endif // SCALAR_H_62B23520_7C8E_11DE_8A39_0800200C9A66

11
src/sequence.cpp
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@@ -13,6 +13,12 @@ namespace YAML
}
Sequence::Sequence(const std::vector<Node *>& data)
{
for(std::size_t i=0;i<data.size();i++)
m_data.push_back(data[i]->Clone().release());
}
Sequence::~Sequence()
{
Clear();
@@ -25,6 +31,11 @@ namespace YAML
m_data.clear();
}
Content *Sequence::Clone() const
{
return new Sequence(m_data);
}
bool Sequence::GetBegin(std::vector <Node *>::const_iterator& it) const
{
it = m_data.begin();

3
src/sequence.h
View File

@@ -15,9 +15,12 @@ namespace YAML
{
public:
Sequence();
Sequence(const std::vector<Node *>& data);
virtual ~Sequence();
void Clear();
virtual Content *Clone() const;
virtual bool GetBegin(std::vector <Node *>::const_iterator& it) const;
virtual bool GetEnd(std::vector <Node *>::const_iterator& it) const;
virtual Node *GetNode(std::size_t i) const;