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extend single_element_loop to match .iter()

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This commit is contained in:
Andre Bogus 2021-04-25 18:10:38 +02:00
parent 08e36d7527
commit efc4c6c957
4 changed files with 33 additions and 2 deletions
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8
clippy_lints/src/loops/single_element_loop.rs
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@ -14,8 +14,14 @@ pub(super) fn check<'tcx>(
body: &'tcx Expr<'_>,
expr: &'tcx Expr<'_>,
) {
let arg_expr = match arg.kind {
ExprKind::AddrOf(BorrowKind::Ref, _, ref_arg) => ref_arg,
ExprKind::MethodCall(method, _, args, _) if args.len() == 1 && method.ident.name == rustc_span::sym::iter => {
&args[0]
},
_ => return,
};
if_chain! {
if let ExprKind::AddrOf(BorrowKind::Ref, _, arg_expr) = arg.kind;
if let PatKind::Binding(.., target, _) = pat.kind;
if let ExprKind::Array([arg_expression]) = arg_expr.kind;
if let ExprKind::Path(ref list_item) = arg_expression.kind;