1 use clippy_utils::diagnostics::span_lint_and_sugg;
2 use clippy_utils::is_trait_method;
3 use clippy_utils::source::snippet;
4 use rustc_errors::Applicability;
6 use rustc_lint::LateContext;
9 use super::ITER_SKIP_NEXT;
11 pub(super) fn check(cx: &LateContext<'_>, expr: &hir::Expr<'_>, recv: &hir::Expr<'_>, arg: &hir::Expr<'_>) {
12 // lint if caller of skip is an Iterator
13 if is_trait_method(cx, expr, sym::Iterator) {
17 expr.span.trim_start(recv.span).unwrap(),
18 "called `skip(..).next()` on an iterator",
20 format!(".nth({})", snippet(cx, arg.span, "..")),
21 Applicability::MachineApplicable,