/// <summary>
/// Rewrite a <see cref="ConstantCriteria" /> as a <see cref="MatchAllCriteria" /> that might be
/// wrapped in a <see cref="NotCriteria" /> depending on whether it is true or false respectively.
/// </summary>
/// <param name="constant"><see cref="ConstantCriteria" /> to rewrite.</param>
/// <returns>
/// <see cref="MatchAllCriteria" /> if true; otherwise a <see cref="MatchAllCriteria" />
/// wrapped in a <see cref="NotCriteria" /> if false.
/// </returns>
static ICriteria Rewrite(ConstantCriteria constant)
{
return(constant == ConstantCriteria.True ? MatchAllCriteria.Instance : NotCriteria.Create(MatchAllCriteria.Instance));
}
