dc
PolySharp
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dc
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Dassie: A new programming language for .NET
The compiler is located here, documentation will soon be found here. For now, the second repo only contains some code examples.
PolySharp
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What's new in C# 12: overview
Great improvements.
There is PolySharp project that enables you to use most of C#11 features in legacy .NET Framework: https://github.com/Sergio0694/PolySharp - Seems that C#12 features are planned to be implemented: https://github.com/Sergio0694/PolySharp/issues/78
I'm using PolySharp where I'm stuck with .NET Framework 4.6 and I don't have any issues.
Hope one day I'd see concise syntax for catch and/or try expressions: https://github.com/dotnet/csharplang/discussions/2734 - but there is a lot of resistance.
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.NET web developer takes a job as a .NET desktop developer
You can go one step further and add https://github.com/Sergio0694/PolySharp to your project and you can use new C# 8+ features that don't require the new runtime (like file scoped namesapces, nullable annotations etc).
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[Question] HttpClient does not recover from error
Is there a reason you're trying to reinvent PolySharp?
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Do you prefer working with Java or C# legacy code?
You can still use C# 11 (with PolySharp), and you can still get a huge amount of new APIs via the various packages on NuGet that target .NET Standard 2.0. Plus you just get the usual .NET type system and BCL, which are still very good even if when using a framework from a few years ago.
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Multi-targeted library, with a recent Language Version
Or the PolySharp NuGet package, which uses source generators to polyfill the language features you're actually using.
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Source Generator Debug always NulLReferecneException
Here's some: - MVVM Toolkit - PolySharp - ComputeSharp
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What's the biggest difference between C# and Java developers?
Well using PolySharp, of course! 😄
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How to use C# 11 features in .NET 6 or older versions (even .NET Framework 2.0)
⚠️ Because PolySharp uses source generators, it doesn't work with the package.config file as stated in this issue. The issue says we need to use the SDK style .csproj, but just changing from package.config to Package Reference worked for me.
- PolySharp: polyfills for C#
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Playing with C# 12 & .NET 8
Some features like records and range require additional boilerplate classes to be added to become usable. You can DIY that or use PolySharp. Some features like static abstract members, default interface methods, etc require runtime support and can't be used.
What are some alternatives?
ecsharp - Home of LoycCore, the LES language of Loyc trees, the Enhanced C# parser, the LeMP macro preprocessor, and the LLLPG parser generator.
AnyDiff - A CSharp (C#) diff library that allows you to diff two objects and get a list of the differences back.
Hazel-Networking - Hazel Networking is a low level networking library for C# providing connection orientated, message based communication via TCP, UDP and RUDP.
NetworkPrimitives
dassie - Documentation for Dassie, a new .NET programming language
csharplang - The official repo for the design of the C# programming language
BlazarTech.QueryableValues.EF6 - This library allows you to efficiently compose an IEnumerable<T> in your Entity Framework 6 (non-core) queries when using the SQL Server database provider. It's a streamlined version of the original QueryableValues for EF Core: https://github.com/yv989c/BlazarTech.QueryableValues.
.NET Runtime - .NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
CrispyWaffle - 🧰 🛠️ Crispy Waffle project - toolkit for .NET projects
IsExternalInit - A source code only package which allows you to use C# 9's init and record features in older target frameworks like .NET Standard 2.0 or the "old" .NET Framework by providing a polyfill for the IsExternalInit class.
tweetinvi - Tweetinvi, an intuitive Twitter C# library for the REST and Stream API. It supports .NET, .NETCore, UAP (Xamarin)...
SharpLab - .NET language playground