public LocationInfo()

in src/log4net/Core/LocationInfo.cs [79:162]
67 lines of code
15 McCabe index (conditional complexity)

		public LocationInfo(Type callerStackBoundaryDeclaringType) 
		{
			// Initialize all fields
			m_className = NA;
			m_fileName = NA;
			m_lineNumber = NA;
			m_methodName = NA;
			m_fullInfo = NA;

#if !NETCF && !NETSTANDARD1_3 // StackTrace isn't fully implemented for NETSTANDARD1_3 https://github.com/dotnet/corefx/issues/1797
			if (callerStackBoundaryDeclaringType != null)
			{
				try
				{
					StackTrace st = new StackTrace(true);
					int frameIndex = 0;
																				
					// skip frames not from fqnOfCallingClass
					while (frameIndex < st.FrameCount)
					{
						StackFrame frame = st.GetFrame(frameIndex);
						if (frame != null && frame.GetMethod().DeclaringType == callerStackBoundaryDeclaringType)
						{
							break;
						}
						frameIndex++;
					}

					// skip frames from fqnOfCallingClass
					while (frameIndex < st.FrameCount)
					{
						StackFrame frame = st.GetFrame(frameIndex);
						if (frame != null && frame.GetMethod().DeclaringType != callerStackBoundaryDeclaringType)
						{
							break;
						}
						frameIndex++;
					}

					if (frameIndex < st.FrameCount)
					{
						// take into account the frames we skip above
						int adjustedFrameCount = st.FrameCount - frameIndex;
                        ArrayList stackFramesList = new ArrayList(adjustedFrameCount);
						m_stackFrames = new StackFrameItem[adjustedFrameCount];
						for (int i=frameIndex; i < st.FrameCount; i++) 
						{
							stackFramesList.Add(new StackFrameItem(st.GetFrame(i)));
						}
												
						stackFramesList.CopyTo(m_stackFrames, 0);
						
						// now frameIndex is the first 'user' caller frame
						StackFrame locationFrame = st.GetFrame(frameIndex);

						if (locationFrame != null)
						{
							System.Reflection.MethodBase method = locationFrame.GetMethod();

							if (method != null)
							{
								m_methodName =  method.Name;
								if (method.DeclaringType != null)
								{
									m_className = method.DeclaringType.FullName;
								}
							}
							m_fileName = locationFrame.GetFileName();
							m_lineNumber = locationFrame.GetFileLineNumber().ToString(System.Globalization.NumberFormatInfo.InvariantInfo);

							// Combine all location info
							m_fullInfo =  m_className + '.' + m_methodName + '(' + m_fileName + ':' + m_lineNumber + ')';
						}
					}
				}
				catch(System.Security.SecurityException)
				{
					// This security exception will occur if the caller does not have 
					// some undefined set of SecurityPermission flags.
					LogLog.Debug(declaringType, "Security exception while trying to get caller stack frame. Error Ignored. Location Information Not Available.");
				}
			}
#endif
		}