log4net/Core/LocationInfo.cs

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#region Copyright & License
//
// Copyright 2001-2005 The Apache Software Foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#endregion

using System;
using System.Diagnostics;

using log4net.Util;

namespace log4net.Core
{
	/// <summary>
	/// The internal representation of caller location information.
	/// </summary>
	/// <remarks>
	/// <para>
	/// This class uses the <c>System.Diagnostics.StackTrace</c> class to generate
	/// a call stack. The caller's information is then extracted from this stack.
	/// </para>
	/// <para>
	/// The <c>System.Diagnostics.StackTrace</c> class is not supported on the 
	/// .NET Compact Framework 1.0 therefore caller location information is not
	/// available on that framework.
	/// </para>
	/// <para>
	/// The <c>System.Diagnostics.StackTrace</c> class has this to say about Release builds:
	/// </para>
	/// <para>
	/// "StackTrace information will be most informative with Debug build configurations. 
	/// By default, Debug builds include debug symbols, while Release builds do not. The 
	/// debug symbols contain most of the file, method name, line number, and column 
	/// information used in constructing StackFrame and StackTrace objects. StackTrace 
	/// might not report as many method calls as expected, due to code transformations 
	/// that occur during optimization."
	/// </para>
	/// <para>
	/// This means that in a Release build the caller information may be incomplete or may 
	/// not exist at all! Therefore caller location information cannot be relied upon in a Release build.
	/// </para>
	/// </remarks>
	/// <author>Nicko Cadell</author>
	/// <author>Gert Driesen</author>
#if !NETCF
	[Serializable]
#endif
	public class LocationInfo