saveourtool/diktat

Unused arguments in lambda should not have types

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#1,172 opened on Jan 17, 2022

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 (6 comments) (0 reactions) (1 assignee)Kotlin (40 forks)github user discovery
documentationenhancementgood first issue

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Description

This is a great stylistic bug, that is not handled by IDEA:

foo {_, _: Int, a: Int - > println("hi") }

diktat should detect and remove a type of such anonymous arguments (_: Int)

This should also be added to the code style

Contributor guide

Research direction
Understand the existing rule structure for lambda parameters in diktat, then add a check for unused parameters with explicit types that should be omitted.
Tech stack
kotlin
Domain
tooling
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
Kotlin
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65