diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/rustc_passes/src/dead.rs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/compiler/rustc_passes/src/dead.rs b/compiler/rustc_passes/src/dead.rs index 9be28674435..d19987cb33c 100644 --- a/compiler/rustc_passes/src/dead.rs +++ b/compiler/rustc_passes/src/dead.rs @@ -464,7 +464,11 @@ impl<'tcx> Visitor<'tcx> for MarkSymbolVisitor<'tcx> { self.lookup_and_handle_method(expr.hir_id); } hir::ExprKind::Field(ref lhs, ..) => { - self.handle_field_access(lhs, expr.hir_id); + if self.typeck_results().opt_field_index(expr.hir_id).is_some() { + self.handle_field_access(lhs, expr.hir_id); + } else { + self.tcx.dcx().span_delayed_bug(expr.span, "couldn't resolve index for field"); + } } hir::ExprKind::Struct(qpath, fields, _) => { let res = self.typeck_results().qpath_res(qpath, expr.hir_id); |