How to disable a clippy lint for a single line / block?

Question

I am getting some Clippy lints that look like this:

warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
  --> src/helpers/mod.rs:29:32
   |
29 |     pub fn to_vec_sorted<U, F>(self, mapper: F) -> Vec<U>
   |                                ^^^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention

I have no problem dealing with this lint, I just picked it because it doesn't show any proprietary code. Suppose I had a really good reason why I needed to name the function this way, and also that Clippy is integrated into my CI, so I need to have zero Clippy errors / warnings.

Is there a way to disable a Clippy lint for a particular line or code block, analogous to @SuppressWarnings("whatever") in Java? I feel like there must be, but I can't find any examples of doing this in the documentation.

https://github.com/rust-lang/rust-clippy#allowingdenying-lints — zrzka, Mar 28 '19 at 16:49
Without context it's hard to say for sure, but probably the best way to get rid of the warning, is to fix the code and rename the method to `into_vec_sorted`. — mcarton, Mar 28 '19 at 17:36
@mcarton If you read the prose it points out that this lint is easy to solve, it's just present to give a minimal example. I'm looking for a general way to disable a lint in a narrow scope, which was provided in an answer below. — Richard Rast, Mar 28 '19 at 17:43

score 68 · Accepted Answer · edited Jun 07 '22 at 07:10

The docs state you can allow or deny lints.

#[allow(clippy::wrong_self_convention)] pub fn to_vec_sorted<U, F>(self, mapper: F) -> Vec<U>

And ,if you want to disable all¹ of them:

#[allow(clippy::all)] pub fn to_vec_sorted<U, F>(self, mapper: F) -> Vec<U>

^{1: clippy:all doesn't actually allow all lints, rather everything contained by correctness, suspicious, style, complexity, cargo, and perf. This means no pedantic or nursery lints..}

How to disable a clippy lint for a single line / block?

1 Answers1

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