ExhaustiveMatching.Analyzer 0.5.0

dotnet add package ExhaustiveMatching.Analyzer --version 0.5.0
NuGet\Install-Package ExhaustiveMatching.Analyzer -Version 0.5.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="ExhaustiveMatching.Analyzer" Version="0.5.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add ExhaustiveMatching.Analyzer --version 0.5.0
#r "nuget: ExhaustiveMatching.Analyzer, 0.5.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install ExhaustiveMatching.Analyzer as a Cake Addin
#addin nuget:?package=ExhaustiveMatching.Analyzer&version=0.5.0

// Install ExhaustiveMatching.Analyzer as a Cake Tool
#tool nuget:?package=ExhaustiveMatching.Analyzer&version=0.5.0

ExhaustiveMatching.Analyzer

ExhaustiveMatching.Analyzer adds exhaustive matching to C# switch statements and expressions.

Get compiler errors for missing cases in a switch statement or expression. Mark which switches should have exhaustiveness checking by throwing an exception in the default case. Exhaustiveness checking works not just for enums, but for classes and interfaces. Turn them into discriminated unions (aka sum types) by marking them with the Closed attribute and listing the cases. ExhaustiveMatching.Analyzer goes beyond what other languages support by handling full inheritance hierarchies.

Full documentation on the GitHub Project.

Quickstart Guide

Mark a switch statement or expression as exhaustive and get errors for missing cases.

using ExhaustiveMatching;

public enum CoinFlip { Heads, Tails }

// ERROR Enum value not handled by switch: Tails
switch (coinFlip)
{
    default:
        throw ExhaustiveMatch.Failed(coinFlip);
    case CoinFlip.Heads:
        Console.WriteLine("Heads!");
        break;
}

// ERROR Enum value not handled by switch: Tails
_ = coinFlip switch
{
    CoinFlip.Heads => "Heads!",
    _ => throw ExhaustiveMatch.Failed(coinFlip),
};

Create discriminated unions (aka sum types) and get errors for missing switch cases.

[Closed(typeof(IPv4Address), typeof(IPv6Address))]
public abstract class IPAddress { … }

public class IPv4Address : IPAddress { … }
public class IPv6Address : IPAddress { … }

// ERROR Subtype not handled by switch: IPv6Address
switch (ipAddress)
{
    default:
        throw ExhaustiveMatch.Failed(ipAddress);
    case IPv4Address ipv4Address:
        return ipv4Address.MapToIPv6();
}
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

This package has no dependencies.

NuGet packages (3)

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GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on ExhaustiveMatching.Analyzer:

Repository Stars
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Version Downloads Last updated
0.5.0 301,483 5/26/2020
0.4.0 16,337 11/4/2019
0.3.2 1,035 11/2/2019
0.3.1 1,018 9/30/2019
0.3.0 1,123 9/29/2019
0.2.2 1,024 9/18/2019
0.2.1 1,046 9/17/2019
0.2.0 1,031 9/15/2019
0.1.2 1,009 9/15/2019
0.1.1 987 9/15/2019
0.1.0 1,149 9/15/2019