private static void InitializeClone(object source, object clone, Type type)
{
CloneableAttribute attribute =
(CloneableAttribute)type.GetCustomAttributes(typeof(CloneableAttribute), false)[0];
MethodInfo[] methods = type.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
if (attribute.UseDefaultConstructor)
{
bool foundMethod = false;
foreach (MethodInfo method in methods)
{
if (method.IsDefined(typeof(CloneInitializeAttribute), false))
{
method.Invoke(clone, new object[] { source, _context });
foundMethod = true;
break;
}
}
if (!foundMethod)
{
// if there was no CloneInitialize method, we assume we are just to clone the fields.
CloneFields(source, clone, type);
}
}
foreach (MethodInfo method in methods)
{
if (method.IsDefined(typeof(OnCloneCompleteAttribute), false))
{
method.Invoke(clone, Type.EmptyTypes);
break;
}
}
}
private static object CloneInternal(object source)
{
Platform.CheckForNullReference(source, "source");
object[] attributes = source.GetType().GetCustomAttributes(typeof(CloneableAttribute), false);
if (attributes.Length == 0)
{
return(null);
}
object clone;
CloneableAttribute attribute = (CloneableAttribute)attributes[0];
if (attribute.UseDefaultConstructor)
{
ConstructorInfo info = source.GetType().GetConstructor(
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance,
null, Type.EmptyTypes, null);
if (info == null)
{
throw new CloningException(
"No default constructor found; the input object must have a default constructor" +
" with the appropriate reflection permission.");
}
try
{
clone = info.Invoke(null);
}
catch (Exception e)
{
throw new CloningException(
"An error occurred while executing the default constructor;" +
" insure the class has the appropriate reflection permissions.", e);
}
}
else
{
ConstructorInfo info = source.GetType().GetConstructor(
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance,
null, new Type[] { source.GetType(), typeof(ICloningContext) }, null);
if (info == null)
{
throw new CloningException(
"The input object must have a constructor with the correct cloning signature and " +
"reflection permission. See the class documentation for more details.");
}
try
{
clone = info.Invoke(new object[] { source, _context });
}
catch (Exception e)
{
throw new CloningException(
"An error occurred while executing the cloning constructor; " +
"insure the class has the appropriate reflection permissions.", e);
}
}
Platform.CheckForNullReference(clone, "clone");
if (clone.GetType() != source.GetType())
{
throw new CloningException(
string.Format("The cloned object is not the same type as the source object ({0} != {1}).",
clone.GetType().FullName, source.GetType().FullName));
}
//Trace.WriteLine(String.Format("CloneCreated: {0}", clone.GetType().FullName));
foreach (Type type in WalkCloneHierarchy(clone.GetType()))
{
InitializeClone(source, clone, type);
//Trace.WriteLine(String.Format("InitializeClone: {0}", type.FullName));
}
return(clone);
}
