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new lint: mutable_key_type #4885

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merged 1 commit into from
Dec 24, 2019
Merged

new lint: mutable_key_type #4885

merged 1 commit into from
Dec 24, 2019

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llogiq
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@llogiq llogiq commented Dec 6, 2019 •
edited by phansch
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This fixes #732 - well, partly, it doesn't adress Hash impls, but the use of mutable types as map keys or set members

changelog: add mutable_key_type lint

r? @flip1995

@llogiq llogiq force-pushed the mut-key-types branch 3 times, most recently from 603d400 to 791b7e9 Compare December 6, 2019 20:36
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llogiq commented Dec 11, 2019

r? @phansch

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Sorry was absent for the past few days. Can you add tests for this lint. I don't really get, why every function/method signature gets checked, but only map/set types get linted.

IIUC only the check_local function can ever trigger the lint, except a function has a HashMap<InteriorMut, _> as an argument. Maybe it gets more clear with tests.

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llogiq commented Dec 13, 2019

Fixed the lint and added a test. The lint will check for arguments, return types and non-wildcard locals.

@llogiq llogiq force-pushed the mut-key-types branch 2 times, most recently from 0f9a0cb to e6d638f Compare December 14, 2019 00:28
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llogiq commented Dec 14, 2019

rebased.

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bors commented Dec 22, 2019

☔ The latest upstream changes (presumably #4930) made this pull request unmergeable. Please resolve the merge conflicts.

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Am I missing something or would it be easier to just use the check_ty function of LateLintPass with hir_ty_to_ty instead of walking the signature of functions?

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llogiq commented Dec 22, 2019

Probably. I took this route to ensure I know what places we lint.

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That's a good argument for this way of writing the lint.

@bors r+

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bors commented Dec 23, 2019

📌 Commit e6d638f has been approved by flip1995

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bors commented Dec 23, 2019

⌛ Testing commit e6d638f with merge 8afd1dc...

bors added a commit that referenced this pull request Dec 23, 2019
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Auto merge of #4885 - rust-lang:mut-key-types, r=flip1995
8afd1dc 
new lint: mutable_key_type

This fixes #732 – well, partly, it doesn't adress `Hash` impls, but the use of mutable types as map keys or set members

changelog: add lint: `mutable_key_type`

r? @flip1995
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bors commented Dec 23, 2019

💔 Test failed - checks-travis

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@bors retry

changlog was there. Maybe it was the second : in the changelog?

bors added a commit that referenced this pull request Dec 23, 2019
@bors
Auto merge of #4885 - rust-lang:mut-key-types, r=flip1995
2cc8c39 
new lint: mutable_key_type

This fixes #732 – well, partly, it doesn't adress `Hash` impls, but the use of mutable types as map keys or set members

changelog: add lint [`mutable_key_type`]

r? @flip1995
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bors commented Dec 23, 2019

⌛ Testing commit e6d638f with merge 2cc8c39...

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bors commented Dec 23, 2019

💔 Test failed - checks-travis

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llogiq commented Dec 23, 2019

@bors retry

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bors commented Dec 23, 2019

⌛ Testing commit e6d638f with merge d5dbe1d...

bors added a commit that referenced this pull request Dec 23, 2019
@bors
Auto merge of #4885 - rust-lang:mut-key-types, r=flip1995
d5dbe1d 
new lint: mutable_key_type

This fixes #732 – well, partly, it doesn't adress `Hash` impls, but the use of mutable types as map keys or set members

changelog: add `mutable_key_type` lint

r? @flip1995
@bors bors mentioned this pull request Dec 23, 2019
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bors commented Dec 23, 2019

💔 Test failed - checks-travis

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Huh, just tested the changlog check locally and it worked with the commit message of d5dbe1d

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phansch commented Dec 24, 2019

@bors retry

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bors commented Dec 24, 2019

⌛ Testing commit e6d638f with merge 433d9e8...

bors added a commit that referenced this pull request Dec 24, 2019
@bors
Auto merge of #4885 - rust-lang:mut-key-types, r=flip1995
433d9e8 
new lint: mutable_key_type

This fixes #732 – well, partly, it doesn't adress `Hash` impls, but the use of mutable types as map keys or set members

changelog: add `mutable_key_type` lint

r? @flip1995
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bors commented Dec 24, 2019

💔 Test failed - checks-travis

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phansch commented Dec 24, 2019

UnicodeEncodeError: 'ascii' codec 🤔

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phansch commented Dec 24, 2019

@bors retry (maybe it was the – character?)

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bors commented Dec 24, 2019

⌛ Testing commit e6d638f with merge ec6d44d...

bors added a commit that referenced this pull request Dec 24, 2019
@bors
Auto merge of #4885 - rust-lang:mut-key-types, r=flip1995
ec6d44d 
new lint: mutable_key_type

This fixes #732 - well, partly, it doesn't adress `Hash` impls, but the use of mutable types as map keys or set members

changelog: add `mutable_key_type` lint

r? @flip1995
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bors commented Dec 24, 2019

💔 Test failed - checks-travis

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@bors r+

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bors commented Dec 24, 2019

📌 Commit 40435ac has been approved by flip1995

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bors commented Dec 24, 2019

⌛ Testing commit 40435ac with merge 1837cbc...

bors added a commit that referenced this pull request Dec 24, 2019
@bors
Auto merge of #4885 - rust-lang:mut-key-types, r=flip1995
1837cbc 
new lint: mutable_key_type

This fixes #732 - well, partly, it doesn't adress `Hash` impls, but the use of mutable types as map keys or set members

changelog: add `mutable_key_type` lint

r? @flip1995
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bors commented Dec 24, 2019

☀️ Test successful - checks-travis, status-appveyor
Approved by: flip1995
Pushing 1837cbc to master...

@bors bors merged commit 40435ac into master Dec 24, 2019
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@flip1995 flip1995 deleted the mut-key-types branch December 24, 2019 14:05
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lint on manual Hash, *Ord, *Eq impls that access a *Cell
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@llogiq @flip1995 @bors @phansch