---

yaml
---
r: 187265
b: refs/heads/try
c: 717a91d
h: refs/heads/master
i:
  187263: db4ffc2
v: v3

Author: ipetkov

[refs]

@@ -2,7 +2,7 @@
 refs/heads/master: b4c965ee803a4521d8b4575f634e036f93e408f3
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 3a96d6a9818fe2affc98a187fb1065120458cee9
-refs/heads/try: dab394c2db5d62dce64ac13af35bb2f18357c9d8
+refs/heads/try: 717a91d6651598994834d056c69e6c4bf2b74b9f
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596

branches/try/src/librustc/lint/builtin.rs

@@ -1577,6 +1577,14 @@ impl LintPass for MissingDoc {
                                      tm.span, "a type method");
     }
 
+    fn check_trait_method(&mut self, cx: &Context, it: &ast::TraitItem) {
+        if let ast::TraitItem::TypeTraitItem(ref ty) = *it {
+            let assoc_ty = &ty.ty_param;
+            self.check_missing_docs_attrs(cx, Some(assoc_ty.id), &ty.attrs,
+                                          assoc_ty.span, "an associated type");
+        }
+    }
+
     fn check_struct_field(&mut self, cx: &Context, sf: &ast::StructField) {
         if let ast::NamedField(_, vis) = sf.node.kind {
             if vis == ast::Public || self.in_variant {

branches/try/src/test/compile-fail/lint-missing-doc.rs

@@ -68,6 +68,19 @@ pub trait D {
     fn dummy(&self) { }
 }
 
+/// dox
+pub trait E {
+    type AssociatedType; //~ ERROR: missing documentation
+    type AssociatedTypeDef = Self; //~ ERROR: missing documentation
+
+    /// dox
+    type DocumentedType;
+    /// dox
+    type DocumentedTypeDef = Self;
+    /// dox
+    fn dummy(&self) {}
+}
+
 impl Foo {
     pub fn foo() {}
     fn bar() {}