AspectDN is a library used to weave advices directly on binary assemblies developed in .net. You have only to describe, with a language derived from C#5, the code or types you want to add or change in the target assembly or assemblies (dll or exe).
With the help of AspectDN, you will be able to declare advices, pointcuts and aspects and weave several types of advices:
- Chunk of code
- Classes, structures, interfaces, enumerations and delegates
- Members : fields, property, event, constructor
Pointcuts and jointoints can be according advice kinds:
- Assemblies
- Types
- Fields
- Properties
- Methods
- Exceptions
- Events
Depending on the advice, the corresponding join point is applied:
- before, after or around add, remove, get, set or call method
- before, after or around a body method, property or event
- before, after or around an triggered event
- before an exception arises
Imagine that you have the following 'Set' method class within the class Target in which you want to trace exceptions.
using System;
namespace Test
{
public class Target : MarshalByRefObject
{
int _P1;
public int P1
{
get;
set;
}
public void Set(object x1, object x2)
{
P1 = (int)x1/(int)x2;
}
}
}
With AspectDN, you are able to solve your problem with the following aspect without changing your code.
using System;
using System.IO;
using System.Diagnostics;
package Aspects
{
code =>
extend around set properties : properties.Name == "P1"
with
{
var methodName = new StackFrame().GetMethod().ToString();
using (StreamWriter sw = new StreamWriter(@"..\log.txt", true))
{
sw.WriteLine(string.Format("{0}: begin",methodName));
try
{
[around anchor];
}
catch
{
sw.WriteLine(string.Format("{0}: catch",methodName));
}
finally
{
sw.WriteLine(string.Format("{0}: finally",methodName));
}
sw.WriteLine(string.Format("{0}: end",methodName));
}
}
}
Dont't hesitate to run the AspectDN Tutorials for more explanation on the use of AspectDN
AspectDN needs several libraries are used and required to compile the project:
- Cecil of Jb Evain (version 0.11.0)
- Roslyn (CodeAnalysis.CSharp) (version 3.8.0)
AspectDN can only be used to target Microsoft .Net DLL and EXE file.
All tests have been done with Microsoft .NET Framework 4.6.1
You can download the AspectDN Documentation
Download AspectDN and from its directory, run the command 'aspectd -window', load the aspectdn project configuration file and weave.
GNU GPLv3 with possible commercial licence including more functionalities. Please contact us for more informations (aspectdn@gmail.com)
Contributors are wellcome. All contributions are submitted to Contributor Assignment Agreemen (Individual or Corporate) Please contact us to get the agreement or for more information about it (aspectdn@gmail.com)