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roslyn

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dotnet /roslyn

The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

13.3K Stars 3.1K Forks Last release: about 2 months ago (v3.7.0-3.20312.3) MIT License 63.1K Commits 141 Releases

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Welcome to the .NET Compiler Platform ("Roslyn")

Join the chat at https://gitter.im/dotnet/roslyn Chat on Discord

Roslyn provides open-source C# and Visual Basic compilers with rich code analysis APIs. It enables building code analysis tools with the same APIs that are used by Visual Studio.

Language Design Discussion

We are now taking language feature discussion in other repositories: - https://github.com/dotnet/csharplang for C# specific issues - https://github.com/dotnet/vblang for VB-specific features - https://github.com/dotnet/csharplang for features that affect both languages

Discussion about the transition of language design to the new repos is at https://github.com/dotnet/roslyn/issues/18002.

Download C# and Visual Basic

Want to start developing in C# and Visual Basic? Download Visual Studio 2019, which has the latest features built-in. There are also prebuilt Azure VM images available with Visual Studio 2019 already installed.

To install the latest release without Visual Studio, download the .NET SDK nightlies.

See what's new with the C# and VB compilers.

Pre-release builds are available from the following public NuGet feeds: - Compiler:

https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json
- IDE Services:
https://devdiv.pkgs.visualstudio.com/_packaging/vssdk/nuget/v3/index.json
- .NET SDK:
https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5/nuget/v3/index.json

Source code

Get started

Contribute!

Some of the best ways to contribute are to try things out, file bugs, and join in design conversations.

Looking for something to work on? The list of up for grabs issues is a great place to start.

This project has adopted the .NET Foundation Code of Conduct.

.NET Foundation

This project is part of the .NET Foundation along with other projects like the .NET Runtime.

Continuous Integration status

Desktop Unit Tests

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CoreClr Unit Tests

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Integration Tests

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Misc Tests

|Branch|Determinism|Build Correctness|Spanish|Mono| |:--:|:--:|:--:|:--:|:--:| master|Build Status|Build Status|Build Status|Build Status| master-vs-deps|Build Status|Build Status|Build Status|Build Status|

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