Tool for backwards compatibility for the C#/.NET API? [closed]

Answer 1

I haven't tried the Java tool you linked to, but NDepend has some powerful tools for comparing two sets of binaries and highlighting any differences.

Answer 2

• ApiChange does take a set of "old" assemblies and a set of "new" assemblies which are diffed for potentially breaking Api changes:

  ApiChange -diff -old HelloWorldV1.dll -new HelloWorldV2.dll

• LibCheck allows you to compare two versions of an assembly and determine the differences. The tool reports the differences as a combination of "removed" and "added" APIs:

  LibCheck -store HelloWorld.dll 1.0 -full C:\HelloWorldV1\
  LibCheck -store HelloWorld.dll 2.0 -full C:\HelloWorldV2\
  LibCheck -compare 1.0 2.0

See also "Working with LibCheck", "Highlight Public API Differences Between Assembly Revisions" and "Api Diff Between Assemblies" articles.

Answer 3

I haven't tested it, but this library https://github.com/tunnelvisionlabs/dotnet-compatibility seems to provide what you'd want.

https://raw.githubusercontent.com/tunnelvisionlabs/dotnet-compatibility/master/CompatibilityCheckExample/Program.cs

IPackageRepository sourceRepository = PackageRepositoryFactory.Default.CreateRepository("https://www.nuget.org/api/v2/");
PackageManager packageManager = new PackageManager(sourceRepository, temporaryDirectory);
packageManager.PackageInstalled += HandlePackageInstalled;
packageManager.InstallPackage("Microsoft.Bcl.Immutable", SemanticVersion.Parse("1.0.34"));
packageManager.InstallPackage("System.Collections.Immutable", SemanticVersion.Parse("1.1.33-beta"));

using (PEReader referenceAssembly = new PEReader(File.OpenRead(Path.Combine(temporaryDirectory, "Microsoft.Bcl.Immutable.1.0.34", "lib", "portable-net45+win8+wp8+wpa81", "System.Collections.Immutable.dll"))))
{
    using (PEReader newAssembly = new PEReader(File.OpenRead(Path.Combine(temporaryDirectory, "System.Collections.Immutable.1.1.33-beta", "lib", "portable-net45+win8+wp8+wpa81", "System.Collections.Immutable.dll"))))
    {
        Analyzer analyzer = new Analyzer(referenceAssembly, newAssembly, null);
        analyzer.Run();
    }
}