diff options
Diffstat (limited to 'compiler/rustc_resolve/src/check_unused.rs')
| -rw-r--r-- | compiler/rustc_resolve/src/check_unused.rs | 10 |
1 files changed, 10 insertions, 0 deletions
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) |