@@ -0,0 +1,28 @@
+#![crate_name = "foo"]
+
+// Check that default trait items that are impossible to satisfy are not
+// listed.
+
+pub trait Foo {
+    fn needs_sized(&self)
+    where
+        Self: Sized,
+    {}
+
+    fn no_needs_sized(&self) {}
+}
+
+//@ has 'foo/struct.Bar.html'
+// "fn needs_sized" should not be listed.
+//@ count - '//*[@id="trait-implementations-list"]//h4[@class="code-header"]' 1
+//@ has - '//*[@id="trait-implementations-list"]//h4[@class="code-header"]' "fn no_needs_sized"
+pub struct Bar([u8]);
+
+impl Foo for Bar {}
+
+//@ has 'foo/struct.Generic.html'
+//@ has - '//*[@id="method.needs_sized"]//h4[@class="code-header"]' "fn needs_sized"
+//@ has - '//*[@id="method.no_needs_sized"]//h4[@class="code-header"]' "fn no_needs_sized"
+pub struct Generic<T: ?Sized>(T);
+
+impl<T: ?Sized> Foo for Generic<T> {}