Investigate improving diagnostic for missing metadata references · dotnet/roslyn#4676

(0 评论) (0 反应) (0 负责人)C# (20,414 star) (4,257 fork)batch import

Area-CompilersBugConcept-Diagnostic Clarityhelp wanted

描述

In the fix to (TFS/DevDiv) bug 1090472 there was a slight degradation in the quality of the diagnostics for symbols missing due to missing metadata references for the test BadSymbolReferences.MissingTypes1. Before the change the required assembly reference was given in the diagnostic. After the change it does not suggest the required assembly.

Investigate the cause of the degradation and see if the quality of the diagnostic can be restored.

(Migrated from TFS/DevDiv 1091957)

贡献者指南

技术栈: csharp
领域: tooling
议题类型: bug
难度: 4
预计时间: over 1 week
活动状态: stale
清晰度: needs investigation
前置要求: C# languageRoslyn compiler internals
新手友好度: 10
研究方向: Investigate the regression in diagnostic quality for missing metadata references, specifically for the test `BadSymbolReferences.MissingTypes1` introduced by the fix to bug 1090472. Examine the changes in how required assembly references are reported, focusing on the symbol resolution and error reporting code in Roslyn's binding layer. Look for comments or changes in the relevant source files (likely under `src/Compilers/CSharp/Portable/Binder/`) to identify how the diagnostic suggestion was lost. The goal is to restore the diagnostic to suggest the required assembly.