roslyn

Let’s consider this very simple async method: static async Task myMethodAsync() { await Task.Delay(500); } When I compile this with VS2013 (pre Roslyn compiler) the generated state-machine is a struct. private struct <myMethodAsync>d__0 : IAsyncStateMachine { ... void IAsyncStateMachine.MoveNext() { ... } } When I compile it with VS2015 (Roslyn) the generated code is this: private sealed class <myMethodAsync>d__1 : IAsyncStateMachine { ... void IAsyncStateMachine.MoveNext() { ... } } As you can see Roslyn generates a class (and not a struct). If I remember correctly the first implementations

I am currently experimenting with Roslyn and Code Actions, more specific Code Refactorings. It feels kind of easy, but I have a difficulty I cannot solve. Code actions are executed once against a dummy workspace as a "preview" option, so that you can see the actual changes before you click the action and execute it against the real workspace. Now I am dealing with some things Roslyn can't really do (yet), so I am doing some changes via EnvDTE . I know, it's bad, but I couldn't find another way. So the issue here is: When I hover over my code action, the code gets executed as preview, and it

I'm making a roslyn demo for generating compiler warnings from attributes I have an analyzer to analyze Method Invocations which looks like so: public override void Initialize(AnalysisContext context) { context.RegisterSyntaxNodeAction(AnalyzerInvocation, SyntaxKind.InvocationExpression); } private static void AnalyzerInvocation(SyntaxNodeAnalysisContext context) { var invocation = (InvocationExpressionSyntax)context.Node; } I'm trying to figure out how to get the method declaration, I know I can use the SymbolFinder to search for the method declaration var model = compilation.GetSemanticModel

This question already has an answer here: Does C# 6.0 work for .NET 4.0? 5 answers Is it possible to use Roslyn compiler and new features of C# 6.0 with old versions of .NET Runtime (for example, .NET 4.0)? For example, I want use the expression-bodied members ( int S => x + y; instead of int S { get { return x + y; } } ) in .NET 4.0 application. The new C# 6.0 features don't depend upon framework support so yes, you an app compiled with the C# 6.0 compiler will run on .NET 4.0, assuming of course you specify you are targeting .NET 4.0 in your project file in the first place. As of now Roslyn

Given that I have created a symbol using SymbolFactory.CreateProperty, how would I add white space. Currently I get accessibility, modifiers, name, type etc. all stringed together when writing out document. Maybe I am writing it out wrong, or I need to add extra step to add white space? I use document.GetText() to write it out to console. Nope, that's what you expect. Generated nodes don't have whitespace, with the intent you'll process it once you're done. There are two options: Call .NormalizeWhitespace() on the nodes. This is an aggressive formatter that is really only useful if you're