/// <summary>
/// Copies all dynamic properties from an instance to another instance.
/// </summary>
/// <param name="fromInstance">The instance to copy the shadow attributes from</param>
/// <param name="toInstance">The instance to copy the shadow attributes to</param>
public static void CopyDynamicProperties(object fromInstance, object toInstance)
{
if (fromInstance == null)
{
throw new ArgumentNullException(nameof(fromInstance));
}
if (toInstance == null)
{
throw new ArgumentNullException(nameof(toInstance));
}
var type = fromInstance.GetType().GetTypeInfo();
bool forceShadowCreation = IdentifiableHelper.IsIdentifiable(type);
ShadowContainer shadow;
if (forceShadowCreation)
{
shadow = Shadows.GetValue(fromInstance, callback => new ShadowContainer(fromInstance.GetType()));
}
else
{
Shadows.TryGetValue(fromInstance, out shadow);
}
if (shadow != null)
{
var newShadow = Shadows.GetValue(toInstance, key => new ShadowContainer());
shadow.CopyTo(newShadow);
newShadow.SetId(toInstance, shadow.GetId(fromInstance));
}
}
/// <summary>
/// Copies all dynamic properties from an instance to another instance.
/// </summary>
/// <param name="fromInstance">The instance to copy the shadow attributes from</param>
/// <param name="toInstance">The instance to copy the shadow attributes to</param>
public static void Copy(object fromInstance, object toInstance)
{
if (!Enable)
{
return;
}
if (fromInstance == null)
{
throw new ArgumentNullException(nameof(fromInstance));
}
if (toInstance == null)
{
throw new ArgumentNullException(nameof(toInstance));
}
var type = fromInstance.GetType();
// If the type is identifiable, we need to force the creation of a ShadowObject in order to
// generate an id
bool forceShadowCreation = IdentifiableHelper.IsIdentifiable(type);
ShadowObject shadow;
if (forceShadowCreation)
{
shadow = Shadows.GetValue(fromInstance, callback => new ShadowObject(fromInstance.GetType()));
}
else
{
Shadows.TryGetValue(fromInstance, out shadow);
}
if (shadow != null)
{
var newShadow = Shadows.GetValue(toInstance, key => new ShadowObject());
shadow.CopyTo(newShadow);
// Copy the id of the attached reference to the destination
if (shadow.IsIdentifiable)
{
newShadow.SetId(toInstance, shadow.GetId(fromInstance));
}
}
}
private ShadowObject(Type type)
{
isIdentifiable = IdentifiableHelper.IsIdentifiable(type);
}
/// <summary>
/// Find all the member path in the <paramref name="dual"/> object corresponding to this path in <paramref name="reference"/> object.
/// </summary>
/// <param name="reference">The reference root element</param>
/// <param name="dual">The dual root element</param>
/// <returns><value>True</value> if a corresponding path could be found, <value>False</value> otherwise</returns>
public IEnumerable <MemberPath> Resolve(object reference, object dual)
{
if (reference == null)
{
throw new ArgumentNullException("reference");
}
if (dual == null)
{
throw new ArgumentNullException("dual");
}
if (items.Count == 0)
{
return(Enumerable.Empty <MemberPath>());
}
var dualPaths = new List <MemberPath> {
new MemberPath()
};
for (var i = 0; i < items.Count; i++)
{
var referenceItem = items[i];
var nextReference = reference;
for (var j = 0; j < i; ++j)
{
nextReference = items[j].GetValue(nextReference);
}
var dualsCount = dualPaths.Count;
for (var c = 0; c < dualsCount; ++c)
{
var dualPath = dualPaths[c];
var nextDual = dual;
for (var j = 0; j < i; ++j)
{
nextDual = dualPath.items[j].GetValue(nextDual);
}
if (referenceItem is ArrayPathItem || referenceItem is CollectionPathItem)
{
dualPaths.RemoveAt(c--);
--dualsCount;
try
{
nextReference = referenceItem.GetValue(nextReference); // id is set on element itself
Guid referenceId;
if (!IdentifiableHelper.TryGetId(nextReference, out referenceId))
{
continue;
}
for (var k = 0; k < Int32.MaxValue; ++k)
{
var dualItem = (referenceItem is ArrayPathItem) ? (MemberPathItem) new ArrayPathItem(k) : new CollectionPathItem(((CollectionPathItem)referenceItem).Descriptor, k);
dualItem.Parent = dualPath.items.LastOrDefault();
Guid dualId;
var dualElt = dualItem.GetValue(nextDual);
if (IdentifiableHelper.TryGetId(dualElt, out dualId) && referenceId == dualId)
{
var path = dualPath.Clone();
path.AddItem(dualItem);
dualPaths.Add(path);
}
}
}
catch (Exception)
{
}
}
else
{
var dualItem = referenceItem.Clone(dualPath.items.LastOrDefault());
try
{
var refElement = referenceItem.GetValue(nextReference);
var dualElement = dualItem.GetValue(nextDual);
}
catch (Exception)
{
dualPaths.RemoveAt(c--);
--dualsCount;
continue;
}
dualPath.AddItem(dualItem);
}
}
}
return(dualPaths);
}
public ShadowContainer(Type type)
{
isIdentifiable = IdentifiableHelper.IsIdentifiable(type);
}
