rust-lang/rust-clippy

Lint against calling intrinsics that have stable or safe wrappers

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#2,997 opened on Aug 3, 2018

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 (8 comments) (2 reactions) (0 assignees)Rust (1,391 forks)batch import
A-lintL-suggestionL-unnecessarygood first issue

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Description

There are some intrinsics that there should be no reason to call. For example core::intrinsics::size_of. This intrinsic is exposed by the safe function core::mem::size_of which should always be called instead.

I would like to suggest a Clippy lint that notices calls to no-reason-to-call intrinsics and recommends the right stable or safe wrapper to call instead.

Contributor guide

Research direction
Identify intrinsics with stable wrappers and create a Clippy lint to suggest them.
Tech stack
rust
Domain
tooling
Issue type
Feature
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.
Mostly clear
Prerequisites
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70