[unnecessary_find_map]: look for then_some

2023-07-30 13:41:58 +02:00 · 2023-07-30 13:41:58 +02:00 · 008746cae4
commit 008746cae4
parent 29730969b1
3 changed files with 21 additions and 1 deletions
--- a/clippy_lints/src/methods/unnecessary_filter_map.rs
+++ b/clippy_lints/src/methods/unnecessary_filter_map.rs
@ -77,6 +77,16 @@ fn check_expression<'tcx>(cx: &LateContext<'tcx>, arg_id: hir::HirId, expr: &'tc
            }
            (true, true)
        },
+        hir::ExprKind::MethodCall(segment, recv, [arg], _) => {
+            if segment.ident.name == sym!(then_some)
+                && cx.typeck_results().expr_ty(recv).is_bool()
+                && path_to_local_id(arg, arg_id)
+            {
+                (false, true)
+            } else {
+                (true, true)
+            }
+        },
        hir::ExprKind::Block(block, _) => block
            .expr
            .as_ref()