roslyn

问题 When installing the .NET Compiler Platform SDK you get Visual Studio templates for creating an "Analyzer with Code Fix (NuGet + VSIX)" and a "Code Refactoring (VSIX)". Why isn't there a template for shipping a code refactoring with NuGet (like "Code Refactoring (NuGet + VSIX)")? Is it even possible to add a code refactoring provider from a NuGet package (by creating the NuGet package manually)? Doesn't it make sense to install a code refactoring provider on a project per project basis? EDIT:

问题 How can I stop RunAsync? CancellatioTokenSource cts = new CancellationTokenSource(); //I thought that it's must work, but it don't var script = CSharpScript.Create(code: someCode); await script.RunAsync(cancelletionToken: cts.Token); void button_click() { cts.Cancel() } How else can I do this. And for why such methods need cancellationToken parameter? 回答1: You must do it before the await call, which blocks execution until yout get results, e.g.: var task = script.RunAsync(cancelletionToken:

问题 I have 2 test projects in solution. First project ("VDoc") declare VDocQuery type. Second project ("VDocQueryTest" ) calls VDocQuery constructor. I get 2 VDocQuery's ITypeSymbol's (one from each project), compare it, but get false result. Steps: 1. Get first ITypeSymbol (from VDoc project with SemanticModel.LookupNamespacesAndTypes() method). 2. Get second ITypeSymbol from VDocQueryTest project (from ObjectCreationExpressionSyntax.GetTypeInfo().Type) 3. Compare it with ITypeSymbol.Equals

问题 I want to analyse a C# class using Roslyn and intend to do something when visited property has the specific attribute applied to it. How can I do this in the CSharpSyntaxWalker.VisitPropertyDeclaration method override? For example, in the following code block I want to know whether the Date property has the Validation attribute or not, and if so, whether IsJDate is true or false? [Validation(IsJDate=true)] public string Date {get; set;} Initializations: filesPath.ToList().ForEach(csFilePath =

问题 I am using Roslyn and I want to split the statement as below, string stringVariable = "string"; int intVariable = 10; Console.Write(stringVariable + string.Concat("string1","string2") + intVariable.ToString()) Console.Write() stringVariable string.Concat("string1","string2") intVariable.ToString() I have asked a question and got answer for splitting the expressions Splitting the Expression statements with Roslyn but this suggestion splits the string.Concat("string1", "string2") as below,

问题 I've noticed that the startup time for Roslyn parsing/compilation is a fairly significant one-time cost. EDIT: I am using the Roslyn CTP MSI (the assembly is in the GAC). Is this expected? Is there any workaround? Running the code below takes almost the same amount of time with 1 iteration (~3 seconds) as with 300 iterations (~3 seconds). [Test] public void Test() { var iters = 300; foreach (var i in Enumerable.Range(0, iters)) { // Parse the source file using Roslyn SyntaxTree syntaxTree =

问题 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

问题 I have written a fix provider which adds members elements resx file. I noticed when visual studio generates the expected changes it calls the method in which add the resource keys to the file. I'm registering my FixProvider I'm looking for a way to tell if the fix was called from a preview public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context) { var root = await context.Document.GetSyntaxRootAsync(context.CancellationToken).ConfigureAwait(false); // TODO: Replace the

问题 I'm using Roslyn's scripting API in my application, code snippet as following: public class ScriptEngine { public static string CodeText; public static event Action<string[]> CompileErrorEvent; public static async Task<bool> RunScriptAsync(CancellationToken ct) { try { var scriptResult = await CSharpScript.RunAsync(CodeText, null, new ScriptHost(), null, ct); return true; } catch (Microsoft.CodeAnalysis.Scripting.CompilationErrorException ex) { List<string> result = new List<string>();

问题 I started playing with Roslyn. It’s relatively easy to parse code and do static analysis. I wonder if it’s possible to use it for runtime analysis? I want to call a method with parameters and check which branches were executed. In other words, I need a runtime execution plan. Is it something which could be done with Roslyn? 回答1: I don't know what the best solution is and I would defer to anything SLaks recommends in most cases. However... If you want to do this with Roslyn you certainly can.