From ea9432ef00ab306cdadc81fdd523b111cdae0d92 Mon Sep 17 00:00:00 2001
From: Steven Fackler <sfackler@gmail.com>
Date: Fri, 1 Nov 2013 23:32:58 -0700
Subject: [PATCH] Rustdoc: Properly strip private modules

A private module will survive the strip-private pass if it contains
trait implementations, which aren't stripped until a separate pass in
render.
---
 src/librustdoc/html/render.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs
index e92d159b5a1..7bfe0910252 100644
--- a/src/librustdoc/html/render.rs
+++ b/src/librustdoc/html/render.rs
@@ -622,6 +622,11 @@ impl DocFolder for Cache {
                         }
                         None
                     }
+                    // Private modules may survive the strip-private pass if
+                    // they contain impls for public types, but those will get
+                    // stripped here
+                    clean::Item { inner: clean::ModuleItem(ref m), _ }
+                            if m.items.len() == 0 => None,
                     i => Some(i),
                 }
             }