user0/rust
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Auto merge of #12976 - tesuji:fix-explicit_auto_deref, r=xFrednet

Browse source 
Fix some false-positive cases of `explicit_auto_deref`

changelog: [`explicit_auto_deref`] Fix some false-positive cases

Fix part of #9841
Fix  #12969

r? xFrednet
This commit is contained in:
bors 2024-07-03 18:24:23 +00:00
commit 0f4035fde3
5 changed files with 116 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

11
clippy_utils/src/lib.rs
View file

@ -2492,6 +2492,17 @@ pub fn peel_hir_ty_refs<'a>(mut ty: &'a hir::Ty<'a>) -> (&'a hir::Ty<'a>, usize)
}
}
/// Peels off all references on the type. Returns the underlying type and the number of references
/// removed.
pub fn peel_middle_ty_refs(mut ty: Ty<'_>) -> (Ty<'_>, usize) {
let mut count = 0;
while let rustc_ty::Ref(_, dest_ty, _) = ty.kind() {
ty = *dest_ty;
count += 1;
}
(ty, count)
}
/// Removes `AddrOf` operators (`&`) or deref operators (`*`), but only if a reference type is
/// dereferenced. An overloaded deref such as `Vec` to slice would not be removed.
pub fn peel_ref_operators<'hir>(cx: &LateContext<'_>, mut expr: &'hir Expr<'hir>) -> &'hir Expr<'hir> {