AutoInterface

Yet another source generator that creates interfaces for implementations and auto-implements the said interface.

How it works

Define a partial class with some public methods

public class MyService
{
    public void HelloWorld()
}

Add [AutoInterface] attribute and make it partial

[AutoInterface]
public partial class MyService
{
    public void HelloWorld()
}

Now you can use the interface

IMyService service = new MyService();

How it works

Scanning

Source generator will scan the project for partial classes with [AutoInterfaceAttribute]

Found classes will be analyzed for public methods, generic arguments and generic argument constrains

Generation

For matching types there will be generated 2 components:

1. An interface with the classes name
2. A partial class implementing your interface

Supports:

• public methods
• methods with parameter modifiers
• generic class arguments
• generic class type constrains
• generic method arguments
• generic method type constraints

Not supported yet:

• docs
• explicit interface name, namespace
• nullable parameters
• probably a bunch more

FAQ:

1. Should I use AutoInterface?

A: Probably not but in some cases it would help.