dotnet/roslyn

Record type doesn't show up in completion list for generic type parameter above the record declaration

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#76,594 opened on Jul 31, 2024

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 (2 comments) (0 reactions) (0 assignees)C# (4,257 forks)batch import
Area-IDEhelp wanted

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Description

If I define a record type, the type doesn't show up in the completion list in code before the type is defined, even though the code does build.

The screenshot is from a Razor document but the issue repros in a plain .cs file too.

devenv_cISL73I8x5

The record type does show up in the completion list in code after the record type is defined.

If I define a class instead of a record, then the type shows up in completions before and after the type definition.

Contributor guide

Research direction
Investigate the completion list generation logic for record types. Compare with class types to understand why records are missing when declared after the usage point. Look at the semantic model and completion providers.
Tech stack
csharp
Domain
compilers
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C#
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65