11 files changed, 37 insertions, 32 deletions

diff --git a/src/Array.cpp b/src/Array.cpp
index a4ea02a..3036476 100644
--- a/src/Array.cpp
+++ b/src/Array.cpp
@@ -43,7 +43,7 @@ Array::Array(plist_t node, Node* parent) : Structure(parent)
     }
 }
 
-Array::Array(PList::Array& a) : Structure()
+Array::Array(const PList::Array& a) : Structure()
 {
     _array.clear();
     _node = plist_copy(a.GetPlist());
@@ -85,7 +85,7 @@ Array::~Array()
     _array.clear();
 }
 
-Node* Array::Clone()
+Node* Array::Clone() const
 {
     return new Array(*this);
 }
diff --git a/src/Boolean.cpp b/src/Boolean.cpp
index e58472f..4608eaf 100644
--- a/src/Boolean.cpp
+++ b/src/Boolean.cpp
@@ -32,7 +32,7 @@ Boolean::Boolean(plist_t node, Node* parent) : Node(node, parent)
 {
 }
 
-Boolean::Boolean(PList::Boolean& b) : Node(PLIST_BOOLEAN)
+Boolean::Boolean(const PList::Boolean& b) : Node(PLIST_BOOLEAN)
 {
     plist_set_bool_val(_node, b.GetValue());
 }
@@ -53,7 +53,7 @@ Boolean::~Boolean()
 {
 }
 
-Node* Boolean::Clone()
+Node* Boolean::Clone() const
 {
     return new Boolean(*this);
 }
@@ -63,7 +63,7 @@ void Boolean::SetValue(bool b)
     plist_set_bool_val(_node, b);
 }
 
-bool Boolean::GetValue()
+bool Boolean::GetValue() const
 {
     uint8_t b = 0;
     plist_get_bool_val(_node, &b);
diff --git a/src/Data.cpp b/src/Data.cpp
index df5c1c7..2e93007 100644
--- a/src/Data.cpp
+++ b/src/Data.cpp
@@ -32,7 +32,7 @@ Data::Data(plist_t node, Node* parent) : Node(node, parent)
 {
 }
 
-Data::Data(PList::Data& d) : Node(PLIST_DATA)
+Data::Data(const PList::Data& d) : Node(PLIST_DATA)
 {
     std::vector<char> b = d.GetValue();
     plist_set_data_val(_node, &b[0], b.size());
@@ -54,7 +54,7 @@ Data::~Data()
 {
 }
 
-Node* Data::Clone()
+Node* Data::Clone() const
 {
     return new Data(*this);
 }
@@ -64,7 +64,7 @@ void Data::SetValue(const std::vector<char>& buff)
     plist_set_data_val(_node, &buff[0], buff.size());
 }
 
-std::vector<char> Data::GetValue()
+std::vector<char> Data::GetValue() const
 {
     char* buff = NULL;
     uint64_t length = 0;
diff --git a/src/Date.cpp b/src/Date.cpp
index 2430184..4b5e0a1 100644
--- a/src/Date.cpp
+++ b/src/Date.cpp
@@ -32,7 +32,7 @@ Date::Date(plist_t node, Node* parent) : Node(node, parent)
 {
 }
 
-Date::Date(PList::Date& d) : Node(PLIST_DATE)
+Date::Date(const PList::Date& d) : Node(PLIST_DATE)
 {
     timeval t = d.GetValue();
     plist_set_date_val(_node, t.tv_sec, t.tv_usec);
@@ -54,7 +54,7 @@ Date::~Date()
 {
 }
 
-Node* Date::Clone()
+Node* Date::Clone() const
 {
     return new Date(*this);
 }
@@ -64,7 +64,7 @@ void Date::SetValue(timeval t)
     plist_set_date_val(_node, t.tv_sec, t.tv_usec);
 }
 
-timeval Date::GetValue()
+timeval Date::GetValue() const
 {
     int32_t tv_sec = 0;
     int32_t tv_usec = 0;
diff --git a/src/Dictionary.cpp b/src/Dictionary.cpp
index 6009ea4..98eeb93 100644
--- a/src/Dictionary.cpp
+++ b/src/Dictionary.cpp
@@ -49,7 +49,7 @@ Dictionary::Dictionary(plist_t node, Node* parent) : Structure(parent)
     free(it);
 }
 
-Dictionary::Dictionary(PList::Dictionary& d) : Structure()
+Dictionary::Dictionary(const PList::Dictionary& d) : Structure()
 {
     for (Dictionary::iterator it = _map.begin(); it != _map.end(); it++)
     {
@@ -115,7 +115,7 @@ Dictionary::~Dictionary()
     _map.clear();
 }
 
-Node* Dictionary::Clone()
+Node* Dictionary::Clone() const
 {
     return new Dictionary(*this);
 }
@@ -140,7 +140,7 @@ Dictionary::iterator Dictionary::Find(const std::string& key)
     return _map.find(key);
 }
 
-Dictionary::iterator Dictionary::Set(const std::string& key, Node* node)
+Dictionary::iterator Dictionary::Set(const std::string& key, const Node* node)
 {
     if (node)
     {
@@ -154,6 +154,11 @@ Dictionary::iterator Dictionary::Set(const std::string& key, Node* node)
     return iterator(this->_map.end());
 }
 
+Dictionary::iterator Dictionary::Set(const std::string& key, const Node& node)
+{
+    return Set(key, &node);
+}
+
 Dictionary::iterator Dictionary::Insert(const std::string& key, Node* node)
 {
     return this->Set(key, node);
diff --git a/src/Integer.cpp b/src/Integer.cpp
index fed03f6..04315d7 100644
--- a/src/Integer.cpp
+++ b/src/Integer.cpp
@@ -32,7 +32,7 @@ Integer::Integer(plist_t node, Node* parent) : Node(node, parent)
 {
 }
 
-Integer::Integer(PList::Integer& i) : Node(PLIST_UINT)
+Integer::Integer(const PList::Integer& i) : Node(PLIST_UINT)
 {
     plist_set_uint_val(_node, i.GetValue());
 }
@@ -53,7 +53,7 @@ Integer::~Integer()
 {
 }
 
-Node* Integer::Clone()
+Node* Integer::Clone() const
 {
     return new Integer(*this);
 }
@@ -63,7 +63,7 @@ void Integer::SetValue(uint64_t i)
     plist_set_uint_val(_node, i);
 }
 
-uint64_t Integer::GetValue()
+uint64_t Integer::GetValue() const
 {
     uint64_t i = 0;
     plist_get_uint_val(_node, &i);
diff --git a/src/Key.cpp b/src/Key.cpp
index 4145f05..e3ccbe6 100644
--- a/src/Key.cpp
+++ b/src/Key.cpp
@@ -32,7 +32,7 @@ Key::Key(plist_t node, Node* parent) : Node(node, parent)
 {
 }
 
-Key::Key(PList::Key& k) : Node(PLIST_UINT)
+Key::Key(const PList::Key& k) : Node(PLIST_UINT)
 {
     plist_set_key_val(_node, k.GetValue().c_str());
 }
@@ -53,7 +53,7 @@ Key::~Key()
 {
 }
 
-Node* Key::Clone()
+Node* Key::Clone() const
 {
     return new Key(*this);
 }
@@ -63,7 +63,7 @@ void Key::SetValue(const std::string& s)
     plist_set_key_val(_node, s.c_str());
 }
 
-std::string Key::GetValue()
+std::string Key::GetValue() const
 {
     char* s = NULL;
     plist_get_key_val(_node, &s);
diff --git a/src/Node.cpp b/src/Node.cpp
index 516d1ae..aaadd52 100644
--- a/src/Node.cpp
+++ b/src/Node.cpp
@@ -93,7 +93,7 @@ Node::~Node()
     _parent = NULL;
 }
 
-plist_type Node::GetType()
+plist_type Node::GetType() const
 {
     if (_node)
     {
@@ -102,12 +102,12 @@ plist_type Node::GetType()
     return PLIST_NONE;
 }
 
-plist_t Node::GetPlist()
+plist_t Node::GetPlist() const
 {
     return _node;
 }
 
-Node* Node::GetParent()
+Node* Node::GetParent() const
 {
     return _parent;
 }
diff --git a/src/Real.cpp b/src/Real.cpp
index 768d07c..ec300c9 100644
--- a/src/Real.cpp
+++ b/src/Real.cpp
@@ -32,7 +32,7 @@ Real::Real(plist_t node, Node* parent) : Node(node, parent)
 {
 }
 
-Real::Real(PList::Real& d) : Node(PLIST_UINT)
+Real::Real(const PList::Real& d) : Node(PLIST_UINT)
 {
     plist_set_real_val(_node, d.GetValue());
 }
@@ -53,7 +53,7 @@ Real::~Real()
 {
 }
 
-Node* Real::Clone()
+Node* Real::Clone() const
 {
     return new Real(*this);
 }
@@ -63,7 +63,7 @@ void Real::SetValue(double d)
     plist_set_real_val(_node, d);
 }
 
-double Real::GetValue()
+double Real::GetValue() const
 {
     double d = 0.;
     plist_get_real_val(_node, &d);
diff --git a/src/String.cpp b/src/String.cpp
index bf65605..09b47b5 100644
--- a/src/String.cpp
+++ b/src/String.cpp
@@ -32,7 +32,7 @@ String::String(plist_t node, Node* parent) : Node(node, parent)
 {
 }
 
-String::String(PList::String& s) : Node(PLIST_UINT)
+String::String(const PList::String& s) : Node(PLIST_UINT)
 {
     plist_set_string_val(_node, s.GetValue().c_str());
 }
@@ -53,7 +53,7 @@ String::~String()
 {
 }
 
-Node* String::Clone()
+Node* String::Clone() const
 {
     return new String(*this);
 }
@@ -63,7 +63,7 @@ void String::SetValue(const std::string& s)
     plist_set_string_val(_node, s.c_str());
 }
 
-std::string String::GetValue()
+std::string String::GetValue() const
 {
     char* s = NULL;
     plist_get_string_val(_node, &s);
diff --git a/src/Uid.cpp b/src/Uid.cpp
index 02a59b3..440dec4 100644
--- a/src/Uid.cpp
+++ b/src/Uid.cpp
@@ -32,7 +32,7 @@ Uid::Uid(plist_t node, Node* parent) : Node(node, parent)
 {
 }
 
-Uid::Uid(PList::Uid& i) : Node(PLIST_UID)
+Uid::Uid(const PList::Uid& i) : Node(PLIST_UID)
 {
     plist_set_uid_val(_node, i.GetValue());
 }
@@ -53,7 +53,7 @@ Uid::~Uid()
 {
 }
 
-Node* Uid::Clone()
+Node* Uid::Clone() const
 {
     return new Uid(*this);
 }
@@ -63,7 +63,7 @@ void Uid::SetValue(uint64_t i)
     plist_set_uid_val(_node, i);
 }
 
-uint64_t Uid::GetValue()
+uint64_t Uid::GetValue() const
 {
     uint64_t i = 0;
     plist_get_uid_val(_node, &i);