/// <summary>
/// Performs a value equality check on the values in LHS and RHS described by this field.
/// </summary>
/// <param name="leftContext">Left context object</param>
/// <param name="rightContext">Right context object</param>
/// <returns>True if the values described by each context are the same</returns>
public bool ContextSimplEquals(object leftContext, object rightContext)
{
var leftSideDescribedValue = this.GetValue(leftContext);
var rightSideDescribedValue = this.GetValue(rightContext);
if(leftSideDescribedValue.GetType().Equals(rightSideDescribedValue.GetType()))
{
if(this.IsComposite)
{
var compositetype = new CompositeType(leftSideDescribedValue.GetType());
return compositetype.SimplEquals(leftSideDescribedValue, rightSideDescribedValue);
}
else if (this.IsCollection)
{
return CollectionType.SimplEquals(leftSideDescribedValue, rightSideDescribedValue);
}
else if (this.IsScalar)
{
return this.ScalarType.SimplEquals(leftSideDescribedValue, rightSideDescribedValue);
}
else
{
throw new Exception("Unexpected type found at ContextSimplEquals!");
}
}
else
{
return false;
}
}
private bool RecursiveSimplEquals(object left, object right, List<object> leftCompared, List<object> rightCompared)
{
leftCompared.Add(left);
rightCompared.Add(right);
if (left.GetType().Equals(right.GetType()))
{
foreach (var fieldDescriptor in this.Type.AllFieldDescriptors)
{
var leftDescribedValue = fieldDescriptor.GetValue(left);
var rightDescribedValue = fieldDescriptor.GetValue(right);
if (fieldDescriptor.IsComposite)
{
if (object.ReferenceEquals(leftDescribedValue, left) || Object.ReferenceEquals(rightDescribedValue,right))
{
// Circular refernces are fine, skip them / move on.
continue;
}
if (leftCompared.Contains(leftDescribedValue) || rightCompared.Contains(rightDescribedValue))
{
// Skip cycles.
continue;
}
var composite = new CompositeType(leftDescribedValue.GetType());
return composite.SimplEquals(leftDescribedValue, rightDescribedValue, leftCompared, rightCompared);
}
else
{
if (!fieldDescriptor.ContextSimplEquals(left,right))
{
return false;
}
}
}
return true;
}
else
{
return false;
}
}