/// <summary>
/// Initializes a new instance of this type.
/// </summary>
/// <param name="value">Initial <see cref="Value"/> property value.</param>
/// <param name="composite">Initial <see cref="Composite"/> property value.</param>
/// <param name="tail">Tail comparison rule (repeated infinitely after composite rules).</param>
public ComparisonRules(ComparisonRule value, ComparisonRules[] composite, ComparisonRules tail)
{
if (value.Direction == Direction.None)
{
throw Exceptions.InvalidArgument(value.Direction, "value.Direction");
}
ArgumentValidator.EnsureArgumentNotNull(tail, "tail");
this.value = value;
if (composite != null)
{
int tailIndex = composite.Length - 1;
if (composite[tailIndex] != tail)
{
tailIndex++;
}
int count = tailIndex + 1;
this.composite = new ComparisonRules[count];
for (int i = 0; i < tailIndex; i++)
{
this.composite[i] = composite[i].Combine(value);
}
this.composite[tailIndex] = tail.Combine(value);
}
else
{
this.composite = new ComparisonRules[1];
this.composite[0] = tail.Combine(value);
}
}
/// <summary>
/// Combines new comparison rules with the rules described by this instance.
/// </summary>
/// <param name="rules">Rules to combine.</param>
/// <returns>Result of the combination.</returns>
public ComparisonRules Combine(ComparisonRules rules)
{
ComparisonRule newValue = value.Combine(rules.Value);
int c = Count;
if (rules.Count > c)
{
c = rules.Count;
}
if (c == 1 && IsRecursive && rules.IsRecursive)
{
return(new ComparisonRules(newValue));
}
ComparisonRules[] newComposite = new ComparisonRules[c];
for (int i = 0; i < c; i++)
{
newComposite[i] = this[i].Combine(rules[i]);
}
return(new ComparisonRules(newValue, newComposite, true));
}
private ComparisonRules(ComparisonRule value, ComparisonRules[] composite, bool ignore)
{
this.value = value;
this.composite = composite;
}
/// <summary>
/// Initializes a new instance of this type.
/// </summary>
/// <param name="value">Initial <see cref="Value"/> property value.</param>
/// <param name="composite">Initial <see cref="Composite"/> property value.
/// Last composite rule is considered as <see cref="Tail"/> rule.</param>
public ComparisonRules(ComparisonRule value, params ComparisonRules[] composite)
: this(value, composite, composite[composite.Length - 1])
{
}
// Constructors
/// <summary>
/// Initializes a new instance of this type.
/// </summary>
/// <param name="value">Initial <see cref="Value"/> property value.</param>
public ComparisonRules(ComparisonRule value)
: this(value, new ComparisonRules[1], true)
{
composite[0] = this;
}