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New lint: [self_named_constructor] #7403

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merged 2 commits into from
Jul 19, 2021

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Anthuang
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@Anthuang Anthuang commented Jun 26, 2021

Adds the self_named_constructor lint for detecting when an implemented method has the same name as the type it is implemented for.

changelog: [self_named_constructor]

closes: #7142

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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @Manishearth (or someone else) soon.

Please see the contribution instructions for more information.

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties label Jun 26, 2021
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Lint name idea: self_named_constructor. It should not lint impl Foo { fn bar() -> Bar; }.

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Lint name idea: self_named_constructor. It should not lint impl Foo { fn bar() -> Bar; }.

That's a better name, I will update the diff.

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bors commented Jun 30, 2021

☔ The latest upstream changes (presumably #7400) made this pull request unmergeable. Please resolve the merge conflicts.

tests/ui/self_named_constructor.stderr Outdated Show resolved Hide resolved
impl_item.span,
&format!("constructor `{}` has the same name as the type", impl_item.ident.name),
|diag| {
diag.span_help(impl_item.span, &format!("consider renaming `{}()` to `new()`", impl_item.ident.name));
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This message will be bogus if the new method is already present in the implementation.

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I got rid of it for now, since it felt like the action needed to resolve the lint was pretty self explanatory. Let me know if it is better to leave a message, and to check for the existence of new first.

clippy_lints/src/self_named_constructor.rs Outdated Show resolved Hide resolved
tests/ui/self_named_constructor.rs Outdated Show resolved Hide resolved
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LGTM apart from a couple of nits. Great job 👍

clippy_lints/src/default.rs Outdated Show resolved Hide resolved
tests/ui/missing_const_for_fn/could_be_const.rs Outdated Show resolved Hide resolved
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popzxc commented Jul 4, 2021

@Manishearth, what will you say?

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bors commented Jul 5, 2021

☔ The latest upstream changes (presumably #7243) made this pull request unmergeable. Please resolve the merge conflicts.

@Manishearth Manishearth changed the title New lint: [redundant_method_names] New lint: [self_named_constructor] Jul 18, 2021
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@bors r+

sorry about the delay!

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bors commented Jul 18, 2021

📌 Commit 357a8f0 has been approved by Manishearth

bors added a commit that referenced this pull request Jul 18, 2021
New lint: [`self_named_constructor`]

Adds the `self_named_constructor` lint for detecting when an implemented method has the same name as the type it is implemented for.

changelog: [`self_named_constructor`]

closes: #7142
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bors commented Jul 18, 2021

⌛ Testing commit 357a8f0 with merge e8fb6a9...

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bors commented Jul 18, 2021

💔 Test failed - checks-action_test

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No worries! Just ran bless again, that should fix the test failure

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@bors r+

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bors commented Jul 19, 2021

📌 Commit e9e10d2 has been approved by Manishearth

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bors commented Jul 19, 2021

⌛ Testing commit e9e10d2 with merge f70a074...

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bors commented Jul 19, 2021

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: Manishearth
Pushing f70a074 to master...

@bors bors merged commit f70a074 into rust-lang:master Jul 19, 2021
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Warn against Type::type methods
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