InterfaceGenerator

A simple source generator that creates interfaces by implementation.

Example user implementation:

[GenerateAutoInterface]
public class SampleService : ISampleService
{
    public double Multiply(double x, double y)
    {
        return x * y;            
    }

    public int NiceNumber => 69;
}

Auto generated interface:

public partial interface ISampleService
{
    double Multiply(double x, double y);
    int NiceNumber { get; }
}

Supports:

• Methods, properties, indexers.
• Default arguments, params arguments.
• Generic types and methods.
• XML docs.
• Explicit interface names (using the Name property on GenerateAutoInterface.
• Explicit interface visibility (using the VisibilityModifier property on GenerateAutoInterface.
• Explicitly excluding a member from the interface (using [AutoInterfaceIgnore]).

Missing:

• Events.
• Nested types.
• Probably a bunch of edge cases I forgot about.