diff options
Diffstat (limited to 'compiler/rustc_lint/src/map_unit_fn.rs')
| -rw-r--r-- | compiler/rustc_lint/src/map_unit_fn.rs | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/compiler/rustc_lint/src/map_unit_fn.rs b/compiler/rustc_lint/src/map_unit_fn.rs index 62e8b4fe9..7c692fee3 100644 --- a/compiler/rustc_lint/src/map_unit_fn.rs +++ b/compiler/rustc_lint/src/map_unit_fn.rs @@ -56,6 +56,7 @@ impl<'tcx> LateLintPass<'tcx> for MapUnitFn { return; } let arg_ty = cx.typeck_results().expr_ty(&args[0]); + let default_span = args[0].span; if let ty::FnDef(id, _) = arg_ty.kind() { let fn_ty = cx.tcx.fn_sig(id).skip_binder(); let ret_ty = fn_ty.output().skip_binder(); @@ -64,7 +65,10 @@ impl<'tcx> LateLintPass<'tcx> for MapUnitFn { MAP_UNIT_FN, span, MappingToUnit { - function_label: cx.tcx.span_of_impl(*id).unwrap(), + function_label: cx + .tcx + .span_of_impl(*id) + .unwrap_or(default_span), argument_label: args[0].span, map_label: arg_ty.default_span(cx.tcx), suggestion: path.ident.span, @@ -80,7 +84,10 @@ impl<'tcx> LateLintPass<'tcx> for MapUnitFn { MAP_UNIT_FN, span, MappingToUnit { - function_label: cx.tcx.span_of_impl(*id).unwrap(), + function_label: cx + .tcx + .span_of_impl(*id) + .unwrap_or(default_span), argument_label: args[0].span, map_label: arg_ty.default_span(cx.tcx), suggestion: path.ident.span, |