NLog.LogFactory.GetTargetsByLevelForLogger C# (CSharp) Method

        internal void GetTargetsByLevelForLogger(string name, IList<LoggingRule> rules, TargetWithFilterChain[] targetsByLevel, TargetWithFilterChain[] lastTargetsByLevel)
        {
            foreach (LoggingRule rule in rules)
            {
                if (!rule.NameMatches(name))
                {
                    continue;
                }

                for (int i = 0; i <= LogLevel.MaxLevel.Ordinal; ++i)
                {
                    if (i < this.GlobalThreshold.Ordinal || !rule.IsLoggingEnabledForLevel(LogLevel.FromOrdinal(i)))
                    {
                        continue;
                    }

                    foreach (Target target in rule.Targets)
                    {
                        var awf = new TargetWithFilterChain(target, rule.Filters);
                        if (lastTargetsByLevel[i] != null)
                        {
                            lastTargetsByLevel[i].NextInChain = awf;
                        }
                        else
                        {
                            targetsByLevel[i] = awf;
                        }

                        lastTargetsByLevel[i] = awf;
                    }
                }

                this.GetTargetsByLevelForLogger(name, rule.ChildRules, targetsByLevel, lastTargetsByLevel);

                if (rule.Final)
                {
                    break;
                }
            }

            for (int i = 0; i <= LogLevel.MaxLevel.Ordinal; ++i)
            {
                TargetWithFilterChain tfc = targetsByLevel[i];
                if (tfc != null)
                {
                    tfc.PrecalculateStackTraceUsage();
                }
            }
        }