roslyn

I want to get the SyntaxNode of a line given the location(lineNumber). The code below should be self-explanatory, but let me know of any questions. static void Main() { string codeSnippet = @"using System; class Program { static void Main(string[] args) { Console.WriteLine(""Hello, World!""); } }"; SyntaxTree tree = SyntaxTree.ParseCompilationUnit(codeSnippet); string[] lines = codeSnippet.Split('\n'); SyntaxNode node = GetNode(tree, 6); //How?? } static SyntaxNode GetNode(SyntaxTree tree,int lineNumber) { throw new NotImplementedException(); // *** What I did *** //Calculted length from using

I am messing around with the Roslyn scripting stuff (using the Microsoft.CodeAnalysis.CSharp.Scripting nuget package), and I wonder if there is a way to add line number information to the stack traces for exceptions that happen inside a script. When I run the following C# code: // using Microsoft.CodeAnalysis.CSharp.Scripting; var code = @" var a = 0; var b = 1 / a; "; try { await CSharpScript.RunAsync(code); } catch (DivideByZeroException dbze) { Console.WriteLine(dbze.StackTrace); } The stack trace written to the console is: at Submission#0.<<Initialize>>d__0.MoveNext() --- End of stack

I'm working on an application where I'd like to dynamically generate code for a numerical calculation (for performance). Doing this calculation as a data driven operation is too slow. To describe my requirements, consider this class: class Simulation { Dictionary<string, double> nodes; double t, dt; private void ProcessOneSample() { t += dt; // Expensive operation that computes the state of nodes at the current t. } public void Process(int N, IDictionary<string, double[]> Input, IDictionary<string, double[]> Output) { for (int i = 0; i < N; ++i) { foreach (KeyValuePair<string, double[]> j in

I'm trying to port some .net code to the new Core runtime and I'm having a bad time porting some on-the-fly compilation. To resume, it always asks me for a reference to System.Runtime and mscorlib, but have no clue on how to reference them. As a side note, I can't reference Framework 4.6 as the project must be published to a Linux machine with .net Core. This is the minimum code: string testClass = @"using System; namespace test{ public class tes { public string unescape(string Text) { return Uri.UnescapeDataString(Text); } } }"; var compilation = CSharpCompilation.Create(Guid.NewGuid()

How can I turn off Roslyn Code Fixes in VS 2015? It works correctly (with the latest Resharper 9.1.2), but still while it initializes it blocks navigation, I mean Home, End, Left, Right are delayed for 0.5 - 1.5 seconds. Also it seems to be fool the nav keys, now it's the dozenth times I find myself in the VS main menu, or an other source file just by pressing the 4 nav keys I've listed, I don't know how... What I've tried so far: Look for in the Tools/Options and search for 'Roslyn' Context menu withing the Roslyn Code Fixes Google Native search in Stackoverflow Probably I am missing

Is it somehow possible to get the fully qualified name of the type contained in a TypeInfo object? In the debugger many of these values nicely show up as System.Int32 but when it's printed out, not one of them contains this fully qualified name. I need this to provide as an argument to Type.GetType() . var typeInfo = semanticModel.GetTypeInfo(argument); var w = typeInfo.ToString(); // Microsoft.CodeAnalysis.TypeInfo var y = typeInfo.Type.ToString(); // int var z = typeInfo.Type.ToDisplayString(); // int var a = typeInfo.Type.OriginalDefinition.ToDisplayString(); // int var b = typeInfo.Type

I have been looking at the null-propagation operator in C#6 and tried to make it work with the variables of dynamic type but without success. Consider the code below, it compiles but CLR throws AccessViolationException at runtime when the null-propagation is applied to dynamic object. class SomeType { public object SomeProperty { get; set; } static void Main() { var obj = new SomeType() { SomeProperty = "ABCD" }; var p1 = ((dynamic)obj).SomeProperty; //OK, p1 is set to "ABCD" var p2 = ((dynamic)obj)?.SomeProperty; //AccessViolationException Console.ReadLine(); } } At first I thought that this