libpanic_unwind => 2018: fix ICEs.

[rust.git] / src / librustdoc / visit_lib.rs

diff --git a/src/librustdoc/visit_lib.rs b/src/librustdoc/visit_lib.rs
index 391a222f5f503ba1ccda342bd59e68d07cf07b52..bd5cae861e93b4228e954d3f5955754fa25d66b8 100644 (file)
--- a/src/librustdoc/visit_lib.rs
+++ b/src/librustdoc/visit_lib.rs
@@ -1,13 +1,3 @@
-// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
 use rustc::middle::privacy::{AccessLevels, AccessLevel};
 use rustc::hir::def::Def;
 use rustc::hir::def_id::{CrateNum, CRATE_DEF_INDEX, DefId};
@@ -70,9 +60,11 @@ pub fn visit_mod(&mut self, def_id: DefId) {
         }
 
         for item in self.cx.tcx.item_children(def_id).iter() {
-            if self.cx.tcx.def_key(item.def.def_id()).parent.map_or(false, |d| d == def_id.index) ||
-                item.vis == Visibility::Public {
-                self.visit_item(item.def);
+            if let Some(def_id) = item.def.opt_def_id() {
+                if self.cx.tcx.def_key(def_id).parent.map_or(false, |d| d == def_id.index) ||
+                    item.vis == Visibility::Public {
+                    self.visit_item(item.def);
+                }
             }
         }
     }