roslyn | NET compiler provides C # and Visual Basic languages | Code Editor library

 by   dotnet C# Version: v4.2.0-4.22266.5 License: MIT

kandi X-RAY | roslyn Summary

kandi X-RAY | roslyn Summary

roslyn is a C# library typically used in Editor, Code Editor, Visual Studio Code applications. roslyn has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

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

            kandi-support Support

              roslyn has a medium active ecosystem.
              It has 17489 star(s) with 3875 fork(s). There are 1037 watchers for this library.
              It had no major release in the last 12 months.
              There are 8130 open issues and 22710 have been closed. On average issues are closed in 205 days. There are 451 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of roslyn is v4.2.0-4.22266.5

            kandi-Quality Quality

              roslyn has 0 bugs and 0 code smells.

            kandi-Security Security

              roslyn has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              roslyn code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              roslyn is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              roslyn releases are available to install and integrate.

            Top functions reviewed by kandi - BETA

            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of roslyn
            Get all kandi verified functions for this library.

            roslyn Key Features

            No Key Features are available at this moment for roslyn.

            roslyn Examples and Code Snippets

            No Code Snippets are available at this moment for roslyn.

            Community Discussions


            AzurePipeline failing due to: The reference assemblies for .NETFramework,Version=v4.6.1 were not found
            Asked 2022-Mar-25 at 09:30

            I have an Azure pipeline setup for my builds. I have been running into this issue recently and cannot figure out a way to fix this:



            Answered 2022-Mar-16 at 06:02

            From Agent pool - Change Agent Specification from Window-Latest to Window-2019 ,It seems MS has done some changes in default agent




            Deploying a C# source generator project that includes references to other private projects
            Asked 2022-Mar-08 at 15:23

            I want to release a source generator package, and I want to include a private project dependency on the source generator project.

            For example, assume that my projects are A.SourceGenerator and A.CodeAnalysis.Core. I want A.SourceGenerator to depend on A.CodeAnalysis.Core, but use ProjectReference instead of PackageReference.

            This means that I want the following line or something similar in my A.SourceGenerator.csproj file:



            Answered 2022-Mar-08 at 15:23

            I don't have much knowledge about project files, but at least i can share some contents of my project file.
            I had to reference other projects like this:



            Invalid instantiation exception when pass dynamic object to custom interpolated string handler in .NET 6
            Asked 2022-Feb-09 at 10:54

            I found an issue upgrading to the .NET 6 LogErrorInterpolatedStringHandler in my logger method.

            Here is the classic method:



            Answered 2022-Feb-09 at 09:45


            There is not much you can do except casting dynamicObject to object at the call site:



            Getting Error on Visual Studio Code for OmniSharp with .Net6 Windows 10
            Asked 2022-Jan-11 at 00:00

            Hi I normally use Visual Studio to create projects however was advised to try and use VS Code for a .Net6 project

            There are some errors I am getting in the compiler

            it starts with "C# extension Some projects have trouble loading. Please review the output for more details"

            And these are the errors



            Answered 2022-Jan-10 at 20:37

            Try updating VS Code and Omnisharp to the latest versions. If does not help - install VS 2022 and try running VS Code again.



            Roslyn CodeFix - MSBuild Properties/metadata and Unit testing
            Asked 2021-Dec-28 at 02:07

            I'm building a roslyn analyzer/code fix but I wan't to access the MSBuild Properties and metadata (both from and the .csproj) in order to know how to apply the code fix. I only found documentation to do it in source generators but not for analyzers.

            To be more specific I want to know if the project is configured to use the new ImplicitUsings, but it would be usefull to also have access to everything.

            Also do we have any way to get all the project global usings?

            And using the new Microsoft.CodeAnalysis.Testing how can I add the MSBuild property so I can actually test it?




            Answered 2021-Dec-28 at 02:07

            Accessing MSBuild properties and metadata in DiagnosticAnalyzers is actually quite similar to how they're read and tested in ISourceGenerators/IIncrementalGenerators, since Source Generators are technically .NET analyzers as well.

            I assume that the documentation you've mentioned is the Source Generators Cookbook.

            First, we need to make the MSBuild property available to the global analyzer config options of the analyzer:



            LanguageVersion does not contain a definition for C# 9 after clearing NuGet caches
            Asked 2021-Dec-21 at 06:54

            Creating ASP.NET Core 6 MVC application with EF Core and Npgsql in Visual Studio 2022.

            After clicking "Clear All NuGet Cache(s)" button in



            Answered 2021-Dec-20 at 19:58

            The error clearly indicates you are using an old version of the DLL that contains the enum, from before C#9 was made available.

            Just upgrade the package in your projects to use the latest one and it should work fine. Here is the latest version of that package:

            If upgrading manually is not possible, check for indirect dependencies on your project dependency tree, and upgrade whatever package is at the top that is referencing the old package. You can do that by navigating through the dependencies in the project's dependencies node in Solution Explorer.

            Another way to find which project exactly is referencing the "problematic" (in this case, old) dll is by doing a windows search by the DLL name in the solution folder, and checking for the difference in file sizes: usually, the different versions will have different sizes, which then allows you to compare them across your projects and with the packages from NuGet.



            Why in C# 10 do I get a compiler warning/error CS8618 on init properties
            Asked 2021-Dec-20 at 13:08

            I have this code



            Answered 2021-Dec-18 at 11:14

            An init-only property doesn't require that properties are set at creation time with the property initializer syntax. It allows them to be set that way instead of requiring that all read-only properties are set by constructors.

            So with your code,



            Specify language version for Roslyn SyntaxFactory
            Asked 2021-Dec-17 at 15:17

            I am currently building a C# source generator with Roslyn in a netstandard2.0 library. In the .csproj, I have referenced the following Roslyn packages:



            Answered 2021-Dec-17 at 15:17

            When you create a SyntaxTree you can set its language version with the ParseOptions argument.



            Publishing a .NET 6 project with C# 10 implicit usings via Visual Studio 2022
            Asked 2021-Dec-14 at 19:31

            When publishing an ASP.NET Core 6 web application with C# 10's enabled to an Azure App Service from a Visual Studio 2022 publishing profile, the publishing build fails due to missing using statements.


            C# 10 introduces the new implicit usings feature, where certain using directives are treated as global using directives based on the SDK. This can be enabled with the following csproj configuration:



            Answered 2021-Nov-10 at 22:58

            First of all, it appears that this was a false alarm. I apparently neglected to finish rebooting my workstation after installing the release version of Visual Studio 2022. After restarting, I am now able to publish with full support for implicit usings. Whoops.

            That said, this does provide a good opportunity to offer some insight into what I discovered after the fact, which may help future readers with similar types of issues—and certainly helped me better understand the integration between the various command-line tools.

            Command-Line Arguments

            Notably, there doesn't appear to be any command-line parameters for handling implicit usings built into any of the following tools:

            • .NET 6.0 SDK (dotnet.exe)
            • Visual C# compiler (csc.exe)
            • Microsoft Build Engine (msbuild.exe)
            Microsoft Build Support

            Instead, this is handled via the Microsoft Build Engine (msbuild.exe) when working off of a C# project file (*.csproj), at which point it generates the following intermediate file at:



            Can you use a ternary operator in a C# local function?
            Asked 2021-Nov-30 at 15:34

            Here is what I would like to implement:



            Answered 2021-Nov-30 at 14:43

            You should be able to write it like this:


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install roslyn

            You can download it from GitHub.


            All work on the C# and Visual Basic compiler happens directly on GitHub. Both core team members and external contributors send pull requests which go through the same review process.
            Find more information at:

            Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items

            Find more libraries

            Stay Updated

            Subscribe to our newsletter for trending solutions and developer bootcamps

            Agree to Sign up and Terms & Conditions

            Share this Page

            share link

            Reuse Pre-built Kits with roslyn

            Consider Popular Code Editor Libraries


            by microsoft


            by atom


            by neoclide


            by microsoft


            by dotnet

            Try Top Libraries by dotnet


            by dotnetC#


            by dotnetC#


            by dotnetPowerShell


            by dotnetC#


            by dotnetC#