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Implement lint for inherent to_string() method.#4259

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Darth-Revan:origin/inherent_to_string
Jul 17, 2019
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Implement lint for inherent to_string() method.#4259
bors merged 3 commits intorust-lang:masterfrom
Darth-Revan:origin/inherent_to_string

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@Darth-Revan Darth-Revan commented Jul 6, 2019 •
edited by flip1995
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Fixes #4247

changelog: Implement two new lints: inherent_to_string and inherent_to_string_shadow_display

  1. Emits a warning if a type implements an inherent method to_string(&self) -> String
  2. Emits an error if a type implements an inherent method to_string(&self) -> String and also implements the Display trait

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Darth-Revan commented Jul 6, 2019

The CI build currently fails due to the removal of hir::ExprKind::While. The build should succeed again after PR #4258 has been merged.

@flip1995 flip1995 added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties label Jul 9, 2019
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flip1995 requested changes Jul 13, 2019
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Great work over all! Just a few NITs.

@flip1995 flip1995 added S-waiting-on-author Status: This is awaiting some action from the author. (Use `@rustbot ready` to update this status) and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties labels Jul 14, 2019
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flip1995 reviewed Jul 15, 2019
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@flip1995 flip1995 added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties and removed S-waiting-on-author Status: This is awaiting some action from the author. (Use `@rustbot ready` to update this status) labels Jul 17, 2019
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flip1995 commented Jul 17, 2019

Thanks! (I just removed the merge commits by rebasing)

@bors r+

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bors commented Jul 17, 2019

📌 Commit b7145fb has been approved by flip1995

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bors commented Jul 17, 2019

⌛ Testing commit b7145fb with merge 5dfb5ad...

bors added a commit that referenced this pull request Jul 17, 2019
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Auto merge of #4259 - Darth-Revan:origin/inherent_to_string, r=flip1995
5dfb5ad 
Implement lint for inherent to_string() method.

Fixes #4247

changelog: Implement two new lints: `inherent_to_string` and `inherent_to_string_shadow_display`

1) Emits a warning if a type implements an inherent method `to_string(&self) -> String`
2) Emits an error if a type implements an inherent method `to_string(&self) -> String` and also implements the `Display` trait
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bors commented Jul 17, 2019

☀️ Test successful - checks-travis, status-appveyor
Approved by: flip1995
Pushing 5dfb5ad to master...

@bors bors merged commit b7145fb into rust-lang:master Jul 17, 2019
This was referenced Jul 17, 2019
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Lint against declaring fn to_string(&self) -> String

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