dotnet/roslyn

The "current line" indicator disappeared when deleting spaces twice

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#33,254 建立於 2019年2月8日

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 (4 留言) (0 反應) (0 負責人)C# (20,414 star) (4,257 fork)batch import
Area-InteractiveBugInteractive-Debugginghelp wanted

描述

Version Used: Visual Studio 2019 Preview 2

🔗 Originally filed as https://devdiv.visualstudio.com/DevDiv/_workitems/edit/238276

Steps to Reproduce:

  1. Use the following code:

    static void Main(string[] args)
{
    int a, b, c, d;
    a = 1;
    b = 2;
    c = 3;
    d = 4;
}

  2. Set a breakpoint on c = 3;

  3. Start debugging and wait for the breakpoint to get hit

  4. Delete the spaces before c = 3;

  5. Press Ctrl+Z

  6. Repeat step (4)

Expected Behavior:

The debugger still shows c = 3; as the current line (with the yellow arrow).

Actual Behavior:

After step (6), the yellow arrow goes away and the current line is now shown.

貢獻者指南

技術棧
csharp
領域
tooling
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
C# programmingDebugger concepts
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
65
研究方向
The bug occurs in the debugger's current line indicator (yellow arrow) when deleting spaces twice and undoing after a breakpoint hit. To reproduce, follow the steps in the issue. The fix likely involves the editor's handling of breakpoint hit indications, possibly in the Roslyn debugger integration code (e.g., in EditorFeatures or Debugger folders). Investigate how the arrow is updated after text changes, especially the undo/redo logic. Check the issue comments for any prior analysis or linked code.
The "current line" indicator disappeared when deleting spaces twice · dotnet/roslyn#33254 | Good First Issue