dotnet/roslyn

Signature help not offered in positional pattern.

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#9,101 opened on Feb 23, 2016

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 (2 comments) (0 reactions) (0 assignees)C# (4,257 forks)batch import
Area-CompilersArea-IDEBugFeature - Pattern MatchingLanguage-C#help wanted

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Description

public class Point
{
    public int X;
    public int Y;
    public void Deconstruct(out int XX, out int YY) => throw null;
    void M()
    {
        object o = null;
        if (o is Point($)) // <-- i should get sighelp here to make it clear what is being matched
        {

        }
    }
}

Contributor guide

Research direction
Investigate the signature help provider for positional patterns in Roslyn's IDE layer, specifically in the context of pattern matching in C#. Locate where signature help is invoked and add support for positional patterns.
Tech stack
csharp
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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#Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75