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Downgrade inefficient_to_string to pedantic #5412

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merged 1 commit into from
Apr 8, 2020

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@dtolnay dtolnay commented Apr 3, 2020

From the documentation:

- ["foo", "bar"].iter().map(|s| s.to_string());

+ ["foo", "bar"].iter().map(|&s| s.to_string());

I feel like saving 10 nanoseconds from the formatting machinery isn't worth asking the programmer to insert extra & / * noise in the vast majority of cases. This is a pedantic lint.

changelog: Remove inefficient_to_string from default set of enabled lints

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Agreed. Waiting for GHA to get fixed.

@flip1995 flip1995 added the S-waiting-on-bors Status: The marked PR was approved and is only waiting bors label Apr 4, 2020
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flip1995 commented Apr 7, 2020

@bors r+ rollup

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bors commented Apr 7, 2020

📌 Commit e26ae7a has been approved by flip1995

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bors commented Apr 7, 2020

🌲 The tree is currently closed for pull requests below priority 2, this pull request will be tested once the tree is reopened

flip1995 added a commit to flip1995/rust-clippy that referenced this pull request Apr 7, 2020
Downgrade inefficient_to_string to pedantic

From the [documentation](https://rust-lang.github.io/rust-clippy/master/index.html#inefficient_to_string):

> ```diff
> - ["foo", "bar"].iter().map(|s| s.to_string());
>
> + ["foo", "bar"].iter().map(|&s| s.to_string());
> ```

I feel like saving 10 nanoseconds from the formatting machinery isn't worth asking the programmer to insert extra `&` / `*` noise in the *vast* majority of cases. This is a pedantic lint.

changelog: Remove inefficient_to_string from default set of enabled lints
bors added a commit that referenced this pull request Apr 8, 2020
Rollup of 12 pull requests

Successful merges:

 - #5345 (Add lint for float in array comparison)
 - #5406 (Fix update_lints)
 - #5409 (Downgrade let_unit_value to pedantic)
 - #5410 (Downgrade trivially_copy_pass_by_ref to pedantic)
 - #5412 (Downgrade inefficient_to_string to pedantic)
 - #5415 (Add new lint for `Result<T, E>.map_or(None, Some(T))`)
 - #5417 (Update doc links and mentioned names in docs)
 - #5419 (Downgrade unreadable_literal to pedantic)
 - #5420 (Downgrade new_ret_no_self to pedantic)
 - #5422 (CONTRIBUTING.md: fix broken triage link)
 - #5424 (Incorrect suspicious_op_assign_impl)
 - #5425 (Ehance opt_as_ref_deref lint.)

Failed merges:

 - #5411 (Downgrade implicit_hasher to pedantic)
 - #5428 (Move cognitive_complexity to nursery)

r? @ghost

changelog: rollup
bors added a commit that referenced this pull request Apr 8, 2020
Rollup of 11 pull requests

Successful merges:

 - #5406 (Fix update_lints)
 - #5409 (Downgrade let_unit_value to pedantic)
 - #5410 (Downgrade trivially_copy_pass_by_ref to pedantic)
 - #5412 (Downgrade inefficient_to_string to pedantic)
 - #5415 (Add new lint for `Result<T, E>.map_or(None, Some(T))`)
 - #5417 (Update doc links and mentioned names in docs)
 - #5419 (Downgrade unreadable_literal to pedantic)
 - #5420 (Downgrade new_ret_no_self to pedantic)
 - #5422 (CONTRIBUTING.md: fix broken triage link)
 - #5424 (Incorrect suspicious_op_assign_impl)
 - #5425 (Ehance opt_as_ref_deref lint.)

Failed merges:

 - #5345 (Add lint for float in array comparison)
 - #5411 (Downgrade implicit_hasher to pedantic)
 - #5428 (Move cognitive_complexity to nursery)

r? @ghost

changelog: rollup
@bors bors merged commit 5ea4771 into rust-lang:master Apr 8, 2020
@dtolnay dtolnay deleted the tostring branch April 8, 2020 17:58
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3 participants