dotnet/roslyn

Explicit method group conversion suppresses unnecessary qualification warning

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#1,208 创建于 2015年3月12日

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Area-AnalyzersBughelp wanted

描述

using System;

class X {
    void M() { R((Action)this.M); }
    void R(Action a) { }
}

(Action) is highlighted as unnecessary, but this. isn't. Removing (Action) correctly highlights it in gray.

Typename qualifiers for static methods are similarly missed, but namespace qualifiers are not.

贡献者指南

技术栈
csharp
领域
tooling
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
4
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
over 1 week
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
C#Roslyn compiler architecturecode analysisIDE features
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
20
研究方向
Investigate the Roslyn analyzer responsible for unnecessary qualification warnings. Look at the code for detecting qualifier redundancy, particularly the interaction with explicit method group conversions. The issue indicates that the warning is not triggered for 'this.' qualifier when an explicit cast is present, unlike namespace qualifiers. Start by examining the relevant diagnostic analyzer files in the Roslyn source, and check if there are any linked PRs or comments that might provide context.
Explicit method group conversion suppresses unnecessary qualification warning · dotnet/roslyn#1208 | Good First Issue