CLSS.ExtensionMethods.Object.As 1.0.1

dotnet add package CLSS.ExtensionMethods.Object.As --version 1.0.1
                    
NuGet\Install-Package CLSS.ExtensionMethods.Object.As -Version 1.0.1
                    
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="CLSS.ExtensionMethods.Object.As" Version="1.0.1" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="CLSS.ExtensionMethods.Object.As" Version="1.0.1" />
                    
Directory.Packages.props
<PackageReference Include="CLSS.ExtensionMethods.Object.As" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add CLSS.ExtensionMethods.Object.As --version 1.0.1
                    
#r "nuget: CLSS.ExtensionMethods.Object.As, 1.0.1"
                    
#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.
#addin nuget:?package=CLSS.ExtensionMethods.Object.As&version=1.0.1
                    
Install CLSS.ExtensionMethods.Object.As as a Cake Addin
#tool nuget:?package=CLSS.ExtensionMethods.Object.As&version=1.0.1
                    
Install CLSS.ExtensionMethods.Object.As as a Cake Tool

CLSS.ExtensionMethods.Object.As

Problem

In order to make a cast during a functional-style call chain, you can do it in 2 ways:

using Newtonsoft.Json.Linq;

var targetProperties1 = ((JObject)((JArray)JToken.Parse(rawJSON)
  .SelectToken(jsonPath))
  .Last
  .Properties();
var targetProperties2 = ((JToken.Parse(rawJSON)
  .SelectToken(jsonPath) as JArray)
  .Last as JObject)
  .Properties();

Both syntaxes break the flow of reading code from left to right and make logical errors from one missing or one extra parenthesis easy to miss. Typical C# programmers are not used to parse parenthesis pairs as Lisp programmers are.

Solution

This package provides As<T> extension method as a functional equivalence to the as syntax to maintain consistent LTR reading flow and be friendly to the functional syntax. The above piece of code can be rewritten as follows:

using CLSS.
using Newtonsoft.Json.Linq;

var targetProperties = JToken.Parse(rawJSON)
  .SelectToken(jsonPath).As<JArray>()
  .Last.As<JObject>()
  .Properties();

Due to the limitation in the type system of C#, As<T> is limited to using reference types. Passing a value type to the type parameter will cause a compilation error. Note that this limitation is strictly for the type parameter. You can still use value types as the caller of As<T>.

using CLSS;

int number = 5;
var numberAsConvertible = number.As<IConvertible>();

As<T> has some boxing overhead. It should be used if said overhead is negligible in your code path and comprehensibility is your priority.

This package is a part of the C# Language Syntactic Sugar suite.
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.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp1.0 was computed.  netcoreapp1.1 was computed.  netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard1.0 is compatible.  netstandard1.1 was computed.  netstandard1.2 was computed.  netstandard1.3 was computed.  netstandard1.4 was computed.  netstandard1.5 was computed.  netstandard1.6 was computed.  netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net45 was computed.  net451 was computed.  net452 was computed.  net46 was computed.  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 tizen30 was computed.  tizen40 was computed.  tizen60 was computed. 
Universal Windows Platform uap was computed.  uap10.0 was computed. 
Windows Phone wp8 was computed.  wp81 was computed.  wpa81 was computed. 
Windows Store netcore was computed.  netcore45 was computed.  netcore451 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)
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NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last updated
1.0.1 1,129 2/16/2024
1.0.0 1,934 8/1/2022

- Added language-sensitive syntax highlighting in README file.
     - Fixed a minor error in the example code in README file.