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Update the XML module to work with the modified API.

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Separate the XML handles into their own source files.
This commit is contained in:
Sandu Liviu Catalin
2016-06-03 21:31:34 +03:00
parent 4d77386b21
commit a792ae525e
17 changed files with 539 additions and 785 deletions
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236
modules/xml/Handle/Document.hpp Normal file
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#ifndef _SQXML_HANDLE_DOCUMENT_HPP_
#define _SQXML_HANDLE_DOCUMENT_HPP_
// ------------------------------------------------------------------------------------------------
#include "Common.hpp"
// ------------------------------------------------------------------------------------------------
namespace SqMod {
/* ------------------------------------------------------------------------------------------------
* Manages a reference counted xml document instance.
*/
class DocumentRef
{
// --------------------------------------------------------------------------------------------
friend class Document;
public:
// --------------------------------------------------------------------------------------------
typedef xml_document Type; /* The managed type. */
// --------------------------------------------------------------------------------------------
typedef Type* Pointer; /* Pointer to the managed type. */
typedef const Type* ConstPtr; /* Constant pointer to the managed type. */
// --------------------------------------------------------------------------------------------
typedef Type& Reference; /* Reference to the managed type. */
typedef const Type& ConstRef; /* Constant reference to the managed type. */
// --------------------------------------------------------------------------------------------
typedef unsigned int Counter; /* Reference counter type. */
/* --------------------------------------------------------------------------------------------
* Validate the managed handle and throw exception if invalid.
*/
void Validate() const;
private:
// --------------------------------------------------------------------------------------------
Pointer m_Ptr; /* The document reader, writer and manager instance. */
Counter* m_Ref; /* Reference count to the managed instance. */
/* --------------------------------------------------------------------------------------------
* Grab a strong reference to a document instance.
*/
void Grab()
{
if (m_Ptr)
{
++(*m_Ref);
}
}
/* --------------------------------------------------------------------------------------------
* Drop a strong reference to a document instance.
*/
void Drop()
{
if (m_Ptr && --(*m_Ref) == 0)
{
delete m_Ptr;
delete m_Ref;
m_Ptr = NULL;
m_Ref = NULL;
}
}
/* --------------------------------------------------------------------------------------------
* Base constructor.
*/
DocumentRef(VoidP /* unused */)
: m_Ptr(new Type())
, m_Ref(new Counter(1))
{
/* ... */
}
public:
/* --------------------------------------------------------------------------------------------
* Default constructor (null).
*/
DocumentRef()
: m_Ptr(NULL), m_Ref(NULL)
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Copy constructor.
*/
DocumentRef(const DocumentRef & o)
: m_Ptr(o.m_Ptr), m_Ref(o.m_Ref)
{
Grab();
}
/* --------------------------------------------------------------------------------------------
* Move constructor.
*/
DocumentRef(DocumentRef && o)
: m_Ptr(o.m_Ptr), m_Ref(o.m_Ref)
{
o.m_Ptr = NULL;
o.m_Ref = NULL;
}
/* --------------------------------------------------------------------------------------------
* Destructor.
*/
~DocumentRef()
{
Drop();
}
/* --------------------------------------------------------------------------------------------
* Copy assignment operator.
*/
DocumentRef & operator = (const DocumentRef & o)
{
if (m_Ptr != o.m_Ptr)
{
Drop();
m_Ptr = o.m_Ptr;
m_Ref = o.m_Ref;
Grab();
}
return *this;
}
/* --------------------------------------------------------------------------------------------
* Move assignment operator.
*/
DocumentRef & operator = (DocumentRef && o)
{
if (m_Ptr != o.m_Ptr)
{
m_Ptr = o.m_Ptr;
m_Ref = o.m_Ref;
o.m_Ptr = NULL;
o.m_Ref = NULL;
}
return *this;
}
/* --------------------------------------------------------------------------------------------
* Perform an equality comparison between two document instances.
*/
bool operator == (const DocumentRef & o) const
{
return (m_Ptr == o.m_Ptr);
}
/* --------------------------------------------------------------------------------------------
* Perform an inequality comparison between two document instances.
*/
bool operator != (const DocumentRef & o) const
{
return (m_Ptr != o.m_Ptr);
}
/* --------------------------------------------------------------------------------------------
* Implicit conversion to boolean for use in boolean operations.
*/
operator bool () const
{
return m_Ptr;
}
/* --------------------------------------------------------------------------------------------
* Implicit conversion to the managed instance pointer.
*/
operator Pointer ()
{
return m_Ptr;
}
/* --------------------------------------------------------------------------------------------
* Implicit conversion to the managed instance pointer.
*/
operator ConstPtr () const
{
return m_Ptr;
}
/* --------------------------------------------------------------------------------------------
* Implicit conversion to the managed instance reference.
*/
operator Reference ()
{
assert(m_Ptr);
return *m_Ptr;
}
/* --------------------------------------------------------------------------------------------
* Implicit conversion to the managed instance reference.
*/
operator ConstRef () const
{
assert(m_Ptr);
return *m_Ptr;
}
/* --------------------------------------------------------------------------------------------
* Member operator for dereferencing the managed pointer.
*/
Pointer operator -> () const
{
assert(m_Ptr);
return m_Ptr;
}
/* --------------------------------------------------------------------------------------------
* Indirection operator for obtaining a reference of the managed pointer.
*/
Reference operator * () const
{
assert(m_Ptr);
return *m_Ptr;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the number of active references to the managed instance.
*/
Counter Count() const
{
return (m_Ptr && m_Ref) ? (*m_Ref) : 0;
}
};
} // Namespace:: SqMod
#endif // _SQXML_HANDLE_DOCUMENT_HPP_