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Crank up invalid value lint #63657

Merged
merged 10 commits into from
Aug 18, 2019
Merged

Crank up invalid value lint #63657

merged 10 commits into from
Aug 18, 2019

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RalfJung
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  • Warn against uninit bool and char.
  • Warn against 0-init NonNull and friends
  • Detect transmute-from-0 as zero-initialization (seen in the wild)

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Aug 17, 2019
Centril
Centril reviewed Aug 17, 2019
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Centril commented Aug 17, 2019

r? @Centril

r=me with comments addressed :)

@rust-highfive rust-highfive assigned Centril and unassigned varkor Aug 17, 2019
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RalfJung and others added 3 commits August 17, 2019 13:42
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@bors r=Centril

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bors commented Aug 17, 2019

📌 Commit f19087d has been approved by Centril

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 17, 2019
tesuji
tesuji reviewed Aug 17, 2019
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src/librustc_lint/builtin.rs Outdated
if let hir::ExprKind::Path(ref qpath) = path_expr.node {
let def_id = cx.tables.qpath_res(qpath, path_expr.hir_id).opt_def_id()?;

if cx.match_def_path(def_id, &ZEROED_PATH) {
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@tesuji tesuji Aug 17, 2019 •
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No need to borrow ZEROED_PATH here.
(It's already a slice).

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Good point, thanks.

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@bors r=Centril

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bors commented Aug 17, 2019

📌 Commit 72d9fe8 has been approved by Centril

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bors commented Aug 17, 2019

⌛ Testing commit 72d9fe8 with merge 602e7dec16b4db3eddeb072ec9489a544d998f6b...

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bors commented Aug 17, 2019

💔 Test failed - checks-azure

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@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Aug 17, 2019
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Ah, this is caused by musl not being able to display spans in libstd... I cannot test with Vec. :/

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@bors r=Centril

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bors commented Aug 17, 2019

📌 Commit 3288be5 has been approved by Centril

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 17, 2019
Centril added a commit to Centril/rust that referenced this pull request Aug 17, 2019
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Rollup merge of rust-lang#63657 - RalfJung:invalid_value, r=Centril
a00b4f1 
Crank up invalid value lint

* Warn against uninit `bool` and `char`.
* Warn against 0-init `NonNull` and friends
* Detect transmute-from-0 as zero-initialization ([seen in the wild](glium/glium#1775 (comment)))
@Centril Centril mentioned this pull request Aug 17, 2019
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bors added a commit that referenced this pull request Aug 17, 2019
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Auto merge of #63671 - Centril:rollup-zufavt5, r=Centril
bd1da18 
Rollup of 5 pull requests

Successful merges:

 - #62451 (Add APIs for uninitialized Box, Rc, and Arc. (Plus get_mut_unchecked))
 - #63487 (Remove meaningless comments in src/test)
 - #63657 (Crank up invalid value lint)
 - #63667 (resolve: Properly integrate derives and `macro_rules` scopes)
 - #63669 (fix typos in mir/interpret)

Failed merges:

r? @ghost
@bors bors merged commit 3288be5 into rust-lang:master Aug 18, 2019
@RalfJung RalfJung deleted the invalid_value branch August 18, 2019 05:48
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