1 use super::EXPLICIT_INTO_ITER_LOOP;
2 use clippy_utils::diagnostics::span_lint_and_sugg;
3 use clippy_utils::is_trait_method;
4 use clippy_utils::source::snippet_with_applicability;
5 use rustc_errors::Applicability;
7 use rustc_lint::LateContext;
8 use rustc_span::symbol::sym;
10 pub(super) fn check(cx: &LateContext<'_>, self_arg: &Expr<'_>, call_expr: &Expr<'_>) {
11 let self_ty = cx.typeck_results().expr_ty(self_arg);
12 let self_ty_adjusted = cx.typeck_results().expr_ty_adjusted(self_arg);
13 if !(self_ty == self_ty_adjusted && is_trait_method(cx, call_expr, sym::IntoIterator)) {
17 let mut applicability = Applicability::MachineApplicable;
18 let object = snippet_with_applicability(cx, self_arg.span, "_", &mut applicability);
21 EXPLICIT_INTO_ITER_LOOP,
23 "it is more concise to loop over containers instead of using explicit \
25 "to write this more concisely, try",