dotnet/runtime

Prefer ValueTuple over Tuple

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#33,791 opened on Mar 19, 2020

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 (7 comments) (0 reactions) (0 assignees)C# (5,445 forks)batch import
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Description

The rule should find and flag cases where a Tuple<...> is being used but where a ValueTuple<...> would suffice, ideally with the C# language syntax employed. There are some cases where a Tuple<...> is beneficial, however, so the patterns identified here would be constrained.

Category: Performance Severity: Info

Contributor guide

Research direction
Study the existing performance analyzers in dotnet/runtime to learn how to create a rule that flags Tuple usage and suggests ValueTuple.
Tech stack
csharp
Domain
backend
Issue type
Performance
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.
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.
70