# aspect-injector
**Repository Path**: CodeUnion/aspect-injector
## Basic Information
- **Project Name**: aspect-injector
- **Description**: No description available
- **Primary Language**: C#
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No
## Statistics
- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-08-06
- **Last Updated**: 2024-08-06
## Categories & Tags
**Categories**: Uncategorized
**Tags**: None
## README
I have never asked for any donations, but today, I ask you, please, consider donating Ukrainian Army.
You can find official ways to do it here or you can donate to the biggest charity organization here
People need to be alive to create open source projects!
_______________________________
_______________________________
_______________________________
-------------------------------
Aspect Injector
========================
**Aspect Injector** is an attribute-based framework for creating and injecting aspects into your .net assemblies.
### Project Status
[](https://www.nuget.org/packages/AspectInjector)
[](https://www.nuget.org/packages/AspectInjector)
[](https://www.nuget.org/packages/AspectInjector)
[](https://github.com/pamidur/aspect-injector/commits/master)
[](https://github.com/pamidur/aspect-injector/commits/master)
### Download
```bash
> dotnet add package AspectInjector
```
### Features
- Compile-time injection - works with Blazor and AOT
- Injecting **Before**, **After** and **Around** (wrap) **Methods**, **Constructors**, **Properties** and **Events**
- Injecting **Interface implementations**
- Supports any project that can reference **netstandard2.0** libraries, see [here](https://docs.microsoft.com/en-us/dotnet/standard/net-standard)
- Debugging support
- Roslyn analyzers for your convenience (only c# currently)
- Can work DI/IoC frameworks [#166](https://github.com/pamidur/aspect-injector/discussions/166)
Check out [samples](samples) and [docs](docs)
### Requirements
- (_semi-optional_) **Nuget 5.0+** for _transient build_ feature. All modern versions of VS and dotnetsdk have it.
_(If you still use project.json for some reason - make sure you add AspectInjector to all projects in the solution)_
- (_optional_) For analyzers to work in VSCode, don't forget to enable ```"omnisharp.enableRoslynAnalyzers": true```
### Known Issues / Limitations
- Unsafe methods are not supported and are silently ignored.
### Simple advice
#### Create an aspect with simple advice:
```C#
[Aspect(Scope.Global)]
[Injection(typeof(LogCall))]
public class LogCall : Attribute
{
[Advice(Kind.Before)] // you can have also After (async-aware), and Around(Wrap/Instead) kinds
public void LogEnter([Argument(Source.Name)] string name)
{
Console.WriteLine($"Calling '{name}' method..."); //you can debug it
}
}
```
#### Use it:
```C#
[LogCall]
public void Calculate()
{
Console.WriteLine("Calculated");
}
Calculate();
```
#### Result:
```bash
$ dotnet run
Calling 'Calculate' method...
Calculated
```
### Simple mixin
#### Create an aspect with mixin:
```C#
public interface IInitializable
{
void Init();
}
[Aspect(Scope.PerInstance)]
[Injection(typeof(Initializable))]
[Mixin(typeof(IInitializable))]
public class Initializable : IInitializable, Attribute
{
public void Init()
{
Console.WriteLine("Initialized!");
}
}
```
#### Use it:
```C#
[Initializable]
public class Target
{
}
var target = new Target() as IInitializable;
target.Init();
```
#### Result:
```bash
$ dotnet run
Initialized!
```