/// <summary>
/// Creates a copy of the given value recursively
/// </summary>
/// <param name="value">The value to copy</param>
/// <returns>The copied value</returns>
public QueryValue Visit(QueryReferenceValue value)
{
return(this.HandleCommonCasesAndCache(
value,
() =>
{
if (value.EntityValue.IsNull)
{
var keyCopy = (QueryRecordValue)value.KeyValue.Accept(this);
return value.Type.CreateReferenceValue(value.EntitySetFullName, keyCopy);
}
else
{
// no way to create the reference value first. Possible infinite recursion here.
var entityValueCopy = (QueryStructuralValue)value.EntityValue.Accept(this);
return value.Type.CreateReferenceValue(entityValueCopy);
}
},
null));
}
/// <summary>
/// Visits a QueryReferenceValue and returns the clr value of the reference value
/// </summary>
/// <param name="value">The QueryReferenceValue which contains the clr value of the structural type : complex/entity type</param>
/// <returns>The clr instance of the reference value</returns>
public object Visit(QueryReferenceValue value)
{
throw new NotImplementedException();
}
/// <summary>
/// Visits the QueryReferenceValue
/// </summary>
/// <param name="value">Value to visit</param>
/// <returns>will always throw</returns>
public string Visit(QueryReferenceValue value)
{
throw new TaupoNotSupportedException();
}
/// <summary>
/// Compares the object with the expected reference value.
/// </summary>
/// <param name="expected">Expected value.</param>
/// <param name="actual">Actual value.</param>
/// <param name="path">The path to the compared object (for debugging purposes).</param>
/// <param name="shouldThrow">Should exception be thrown if error is encountered.</param>
/// <returns>Result of the comparison, Success or Failure.</returns>
protected virtual ComparisonResult CompareReference(QueryReferenceValue expected, object actual, string path, bool shouldThrow)
{
throw new TaupoNotSupportedException("Comparison of query reference value is not supported here.");
}
/// <summary>
/// Visits the given QueryValue
/// </summary>
/// <param name="value">QueryValue being visited.</param>
/// <returns>The result of visiting this QueryValue.</returns>
public QueryValue Visit(QueryReferenceValue value)
{
return(value);
}