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This commit is contained in:
Jesse Beder
2014-03-22 13:05:03 -05:00
parent 3355bbb399
commit d63ec48c8a
40 changed files with 5797 additions and 5687 deletions
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186
src/nodeevents.cpp
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@@ -4,98 +4,96 @@
#include "yaml-cpp/eventhandler.h"
#include "yaml-cpp/mark.h"
namespace YAML
{
void NodeEvents::AliasManager::RegisterReference(const detail::node& node)
{
m_anchorByIdentity.insert(std::make_pair(node.ref(), _CreateNewAnchor()));
}
anchor_t NodeEvents::AliasManager::LookupAnchor(const detail::node& node) const
{
AnchorByIdentity::const_iterator it = m_anchorByIdentity.find(node.ref());
if(it == m_anchorByIdentity.end())
return 0;
return it->second;
}
NodeEvents::NodeEvents(const Node& node): m_pMemory(node.m_pMemory), m_root(node.m_pNode)
{
if(m_root)
Setup(*m_root);
}
void NodeEvents::Setup(const detail::node& node)
{
int& refCount = m_refCount[node.ref()];
refCount++;
if(refCount > 1)
return;
if(node.type() == NodeType::Sequence) {
for(detail::const_node_iterator it=node.begin();it!=node.end();++it)
Setup(**it);
} else if(node.type() == NodeType::Map) {
for(detail::const_node_iterator it=node.begin();it!=node.end();++it) {
Setup(*it->first);
Setup(*it->second);
}
}
}
void NodeEvents::Emit(EventHandler& handler)
{
AliasManager am;
handler.OnDocumentStart(Mark());
if(m_root)
Emit(*m_root, handler, am);
handler.OnDocumentEnd();
}
void NodeEvents::Emit(const detail::node& node, EventHandler& handler, AliasManager& am) const
{
anchor_t anchor = NullAnchor;
if(IsAliased(node)) {
anchor = am.LookupAnchor(node);
if(anchor) {
handler.OnAlias(Mark(), anchor);
return;
}
am.RegisterReference(node);
anchor = am.LookupAnchor(node);
}
switch(node.type()) {
case NodeType::Undefined:
break;
case NodeType::Null:
handler.OnNull(Mark(), anchor);
break;
case NodeType::Scalar:
handler.OnScalar(Mark(), node.tag(), anchor, node.scalar());
break;
case NodeType::Sequence:
handler.OnSequenceStart(Mark(), node.tag(), anchor);
for(detail::const_node_iterator it=node.begin();it!=node.end();++it)
Emit(**it, handler, am);
handler.OnSequenceEnd();
break;
case NodeType::Map:
handler.OnMapStart(Mark(), node.tag(), anchor);
for(detail::const_node_iterator it=node.begin();it!=node.end();++it) {
Emit(*it->first, handler, am);
Emit(*it->second, handler, am);
}
handler.OnMapEnd();
break;
}
}
bool NodeEvents::IsAliased(const detail::node& node) const
{
RefCount::const_iterator it = m_refCount.find(node.ref());
return it != m_refCount.end() && it->second > 1;
}
namespace YAML {
void NodeEvents::AliasManager::RegisterReference(const detail::node& node) {
m_anchorByIdentity.insert(std::make_pair(node.ref(), _CreateNewAnchor()));
}
anchor_t NodeEvents::AliasManager::LookupAnchor(const detail::node& node)
const {
AnchorByIdentity::const_iterator it = m_anchorByIdentity.find(node.ref());
if (it == m_anchorByIdentity.end())
return 0;
return it->second;
}
NodeEvents::NodeEvents(const Node& node)
: m_pMemory(node.m_pMemory), m_root(node.m_pNode) {
if (m_root)
Setup(*m_root);
}
void NodeEvents::Setup(const detail::node& node) {
int& refCount = m_refCount[node.ref()];
refCount++;
if (refCount > 1)
return;
if (node.type() == NodeType::Sequence) {
for (detail::const_node_iterator it = node.begin(); it != node.end(); ++it)
Setup(**it);
} else if (node.type() == NodeType::Map) {
for (detail::const_node_iterator it = node.begin(); it != node.end();
++it) {
Setup(*it->first);
Setup(*it->second);
}
}
}
void NodeEvents::Emit(EventHandler& handler) {
AliasManager am;
handler.OnDocumentStart(Mark());
if (m_root)
Emit(*m_root, handler, am);
handler.OnDocumentEnd();
}
void NodeEvents::Emit(const detail::node& node, EventHandler& handler,
AliasManager& am) const {
anchor_t anchor = NullAnchor;
if (IsAliased(node)) {
anchor = am.LookupAnchor(node);
if (anchor) {
handler.OnAlias(Mark(), anchor);
return;
}
am.RegisterReference(node);
anchor = am.LookupAnchor(node);
}
switch (node.type()) {
case NodeType::Undefined:
break;
case NodeType::Null:
handler.OnNull(Mark(), anchor);
break;
case NodeType::Scalar:
handler.OnScalar(Mark(), node.tag(), anchor, node.scalar());
break;
case NodeType::Sequence:
handler.OnSequenceStart(Mark(), node.tag(), anchor);
for (detail::const_node_iterator it = node.begin(); it != node.end();
++it)
Emit(**it, handler, am);
handler.OnSequenceEnd();
break;
case NodeType::Map:
handler.OnMapStart(Mark(), node.tag(), anchor);
for (detail::const_node_iterator it = node.begin(); it != node.end();
++it) {
Emit(*it->first, handler, am);
Emit(*it->second, handler, am);
}
handler.OnMapEnd();
break;
}
}
bool NodeEvents::IsAliased(const detail::node& node) const {
RefCount::const_iterator it = m_refCount.find(node.ref());
return it != m_refCount.end() && it->second > 1;
}
}