Usage of the variable Args in a C# script file is marked as error · dotnet/roslyn#37376

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Area-InteractiveBugDeveloper CommunityInteractive-ScriptingIDERegressionhelp wanted

描述

Create a CSX script file which uses the global Args variable to access command line parameters, e.g.
```
Console.WriteLine(Args[0]);
```
Running it with csi is fine and shows the expected ouput
Add the file to a solution and edit it in Visual Studio
In the editor, all occurences of Args are underlined red because "the variable args is not available in the current context", which is obviously false
In Visual Studi 2017 editing the same script file did not procuce this annoying error message.

This issue has been moved from https://developercommunity.visualstudio.com/content/problem/548537/usage-of-the-variable-args-in-a-c-script-file-is-m.html VSTS ticketId: 857005 These are the original issue comments:

Visual Studio Feedback System on 4/27/2019, 10:54 PM (82 days ago): We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.

These are the original issue solutions: (no solutions)

贡献者指南

技术栈: csharp
领域: tooling
议题类型: bug
难度: 3
预计时间: 1-2 days
活动状态: stale
清晰度: clear
前置要求: Basic C# knowledgeFamiliarity with Roslyn internals
新手友好度: 25
研究方向: Investigate how Roslyn handles the global `Args` variable in C# script (CSX) files. Look in the Scripting directory, specifically the semantic model and binder logic. The issue is that the editor incorrectly reports 'variable args is not available in the current context'. Since the issue has an assignee (noted from the assignee count) and no linked PR, it may be stale. Begin by examining test files for script compilation and the Binder or DiagnosticAnalyzer that produces the false error. Reference the original VSTS ticket for context.