What is this?
The .NET Compiler Platform (Roslyn) — the open-source implementation of the C# and Visual Basic compilers, plus rich APIs for building code analysis tools.
The .NET Compiler Platform (Roslyn) — the open-source implementation of the C# and Visual Basic compilers, plus rich APIs for building code analysis tools.So is it a program I run, or an API I code against?Both: the same codebase is the compilers themselves and exposes analysis APIs, so you consume it through packages or tools built on it — not as a standalone app.
Both: the same codebase is the compilers themselves and exposes analysis APIs, so you consume it through packages or tools built on it — not as a standalone app.How do I get the latest builds if I want to develop against its APIs?Pull the latest pre-release builds from the public NuGet feeds: separate feeds exist for the Compiler, IDE Services, and the .NET SDK.
Pull the latest pre-release builds from the public NuGet feeds: separate feeds exist for the Compiler, IDE Services, and the .NET SDK.I have an idea for a new C# language feature — do I file it in this repo?No — language feature suggestions go to dedicated repos: dotnet/csharplang for C# and dotnet/vblang for Visual Basic; csharplang also takes features affecting both languages.
No — language feature suggestions go to dedicated repos: dotnet/csharplang for C# and dotnet/vblang for Visual Basic; csharplang also takes features affecting both languages.Is this Windows-only, given the Visual Studio connection?No — CI runs builds and tests on Windows, Unix/Linux and macOS, so the compiler is developed as a cross-platform .NET codebase.
No — CI runs builds and tests on Windows, Unix/Linux and macOS, so the compiler is developed as a cross-platform .NET codebase.Is there a review gate for public API changes?Yes. Roslyn API suggestions go through a dedicated API review process, so API changes are not merged straight from a pull request.
Yes. Roslyn API suggestions go through a dedicated API review process, so API changes are not merged straight from a pull request.What should I read to understand how Roslyn works inside?The Roslyn Architecture Overview — the README points to it as the place to get started with the Roslyn APIs.
The Roslyn Architecture Overview — the README points to it as the place to get started with the Roslyn APIs.What kinds of tasks can a newcomer pick up?The contributing guide points to finding a bug to fix or a feature to implement in the IDE or the compiler, and covers coding guidelines, debugging and running tests.
The contributing guide points to finding a bug to fix or a feature to implement in the IDE or the compiler, and covers coding guidelines, debugging and running tests.What are similar projects?Cpp2IL, BenchmarkDotNet, SharpIDE, uno, dotnet-framework-docker, rust-analyzer, runtime, efcore
Cpp2IL, BenchmarkDotNet, SharpIDE, uno, dotnet-framework-docker, rust-analyzer, runtime, efcoreWhich topics is it in?analyzer, nuget, visual-studio, code-analysis, parser, ide, microsoft, static-analysis, dotnet, compiler, c#, csharp
analyzer, nuget, visual-studio, code-analysis, parser, ide, microsoft, static-analysis, dotnet, compiler, c#, csharp