From 7167e7ce06437ec093e80cc4ff20bf33dbf1fef5 Mon Sep 17 00:00:00 2001 From: yukang Date: Mon, 2 Jun 2025 17:40:35 +0800 Subject: Fix false positive lint error from no_implicit_prelude attr --- compiler/rustc_resolve/src/check_unused.rs | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'compiler/rustc_resolve/src') diff --git a/compiler/rustc_resolve/src/check_unused.rs b/compiler/rustc_resolve/src/check_unused.rs index 0579e91c0d6..e0b2adb3fc9 100644 --- a/compiler/rustc_resolve/src/check_unused.rs +++ b/compiler/rustc_resolve/src/check_unused.rs @@ -193,6 +193,16 @@ impl<'a, 'ra, 'tcx> UnusedImportCheckVisitor<'a, 'ra, 'tcx> { continue; } + let module = self + .r + .get_nearest_non_block_module(self.r.local_def_id(extern_crate.id).to_def_id()); + if module.no_implicit_prelude { + // If the module has `no_implicit_prelude`, then we don't suggest + // replacing the extern crate with a use, as it would not be + // inserted into the prelude. User writes `extern` style deliberately. + continue; + } + let vis_span = extern_crate .vis_span .find_ancestor_inside(extern_crate.span) -- cgit 1.4.1-3-g733a5