/// <summary>
/// Called when [constant substitutor] is visited.
/// </summary>
/// <param name="substitutor">The substitutor.</param>
public virtual void OnConstantSubstitutor(ConstantSubstitutor substitutor)
{
}
/// <summary>
/// Called when [constant substitutor] is visited.
/// </summary>
/// <param name="substitutor">The substitutor.</param>
public override void OnConstantSubstitutor(ConstantSubstitutor substitutor)
{
_sb.AppendLine(substitutor.ToString());
}