csharplang
ExpressionToCode
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csharplang | ExpressionToCode | |
---|---|---|
262 | 1 | |
10,779 | 155 | |
1.1% | - | |
9.6 | 7.6 | |
4 days ago | 28 days ago | |
C# | C# | |
- | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
csharplang
- Discriminated Unions: Essa feature faz falta no CSharp
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DevDocs
Certain parts of Microsoft Learn are permissive, for example the .NET BCL documentation is Creative Commons Attribution: https://github.com/dotnet/dotnet-api-docs as is ASP.NET Core: https://github.com/dotnet/AspNetCore.Docs (a good hint if documentation is permissively licensed and on GitHub is if there's an edit button at the top.)
The C# language specification is unfortunately a bit fuzzier: https://github.com/dotnet/csharplang/discussions/4855
The updated unified C# language specification is CC, but it's still catching up to modern C#: https://github.com/dotnet/csharpstandard
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The golden age of Kotlin and its uncertain future
No OP, but for example you still see the C# folks still struggling to add discriminated unions to the language because of complex interactions due to its too many features[1]. Virtual threads are easier to use than async/await is another example.
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.NET 8 – .NET Blog
Hi there. I'm the language designer who created the 'Collection Expression' design/specification: https://github.com/dotnet/csharplang/issues/5354
You can see the entire history of the proposal there. To answer you specific question, we went with `..` because that's what the language already uses for the complimentary 'pattern matching deconstruction' form for collection patterns.
In other words, you can already say this today:
if (x is [var start, .. var middle, .. var end]) { ... }
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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.
You must specify concrete type.
There was a plan to have "natural type" so "var list = [1,2,3]" would be of type "List" but it was postponed to C# 13 (https://github.com/dotnet/csharplang/issues/5354#issuecommen...)
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Robust Design through Value Objects in C#
While C# currently lacks direct support for this kind of functionality, there's a glimmer of hope with an active proposal under discussion that aims to bring this feature to the language. This potential addition promises a future where C# can natively offer similar robust type narrowing.
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The combined power of F# and C#
Given few people anticipated ValueTuple and C# adding a more direct tuple syntax, I feel like it is only a matter of time before C# adds discriminated unions.
(There are multiple proposals tracking the idea. This seems the most comprehensive and "central": https://github.com/dotnet/csharplang/issues/7016)
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Interceptors (new C# metaprogramming feature) to fuel DapperAOT development
https://github.com/dotnet/csharplang/issues/7009
[Proposal]: Interceptors #7009
> An interceptor is a method which can declaratively substitute a call to itself instead of a call to an interceptable method at compile time. This substitution occurs by having the interceptor declare the source locations of the calls that it intercepts. This provides a limited facility to change the semantics of existing code by adding new code to a compilation (e.g. in a source generator).
- How Much Memory Do You Need to Run 1M Concurrent Tasks?
ExpressionToCode
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I wanted to make a quick video about the differences between classes and structs in C#. It turned into a much deeper exploration where I learned a handful of things I definitely didn't expect. I hope it is useful to other people!
(Source: I needed to hack a detection for this for my expression-tree-to-csharp decompiler, here: https://github.com/EamonNerbonne/ExpressionToCode/pull/196)
What are some alternatives?
language-ext - C# functional language extensions - a base class library for functional programming
jOOQ - jOOQ is the best way to write SQL in Java
Fluent Assertions - A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1. Supports the unit test frameworks MSTest2, NUnit3, XUnit2, MSpec, and NSpec3.
SQLDelight - SQLDelight - Generates typesafe Kotlin APIs from SQL
GennyMcGenFace
SharpLab - .NET language playground
runtimelab - This repo is for experimentation and exploring new ideas that may or may not make it into the main dotnet/runtime repo.
.NET Runtime - .NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
wuffs - Wrangling Untrusted File Formats Safely
intellij-rust - Rust plugin for the IntelliJ Platform
F# - Please file issues or pull requests here: https://github.com/dotnet/fsharp
FluentAutomation - Simple Fluent API for UI Automation