Overview

This project includes a single class, Argument, useful for argument validation/guard methods.
You can get the NuGet package at: https://nuget.org/packages/Argument.

Example

public MyService(OtherService other) {
   _other = Argument.NotNull("other", other);
}

Features

1. ReSharper annotations (Argument.ExternalAnnotations.xml).
   Note that there is [NotNull] annotation on values that are being tested — that is so you do not forget to add [NotNull] to your arguments.

2. For .NET 4.5 Code Contracts: [ContractArgumentValidator].
   I did not have time to test if it actually works in Visual Studio though.

3. Argument.Ex is an extensibility point. Example:

    public static T Magic<T>(this Argument.Extensible _, string name, T value) {
        //..
    }
   
    Argument.Ex.Magic("name", value);