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| author | bors <bors@rust-lang.org> | 2023-07-11 09:34:48 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2023-07-11 09:34:48 +0000 |
| commit | a8939e5eae4d6531f04599d24d9571fe8eec728f (patch) | |
| tree | c06909b3822e397c297e01a339de427f13beb705 /compiler/rustc_codegen_llvm/src/llvm_util.rs | |
| parent | b485e4f840360feb66c2093db6246dc5f1cc311b (diff) | |
| parent | 103949b241f66085d41f99d5f8ddbc281844df6d (diff) | |
| download | rust-a8939e5eae4d6531f04599d24d9571fe8eec728f.tar.gz rust-a8939e5eae4d6531f04599d24d9571fe8eec728f.zip | |
Auto merge of #111717 - Urgau:uplift_fn_null_check, r=oli-obk
Uplift `clippy::fn_null_check` lint
This PR aims at uplifting the `clippy::fn_null_check` lint into rustc.
## `incorrect_fn_null_checks`
(warn-by-default)
The `incorrect_fn_null_checks` lint checks for expression that checks if a function pointer is null.
### Example
```rust
let fn_ptr: fn() = /* somehow obtained nullable function pointer */
if (fn_ptr as *const ()).is_null() { /* ... */ }
```
### Explanation
Function pointers are assumed to be non-null, checking for their nullity is incorrect.
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Mostly followed the instructions for uplifting a clippy lint described here: https://github.com/rust-lang/rust/pull/99696#pullrequestreview-1134072751
`@rustbot` label: +I-lang-nominated
r? compiler
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/llvm_util.rs')
0 files changed, 0 insertions, 0 deletions