diff options
Diffstat (limited to 'compiler/rustc_passes/src/lib_features.rs')
| -rw-r--r-- | compiler/rustc_passes/src/lib_features.rs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/compiler/rustc_passes/src/lib_features.rs b/compiler/rustc_passes/src/lib_features.rs index b5843c0ae..4c6a9b23f 100644 --- a/compiler/rustc_passes/src/lib_features.rs +++ b/compiler/rustc_passes/src/lib_features.rs @@ -137,6 +137,12 @@ impl<'tcx> Visitor<'tcx> for LibFeatureCollector<'tcx> { } fn lib_features(tcx: TyCtxt<'_>, (): ()) -> LibFeatures { + // If `staged_api` is not enabled then we aren't allowed to define lib + // features; there is no point collecting them. + if !tcx.features().staged_api { + return new_lib_features(); + } + let mut collector = LibFeatureCollector::new(tcx); tcx.hir().walk_attributes(&mut collector); collector.lib_features |