Merge pull request #1658 from anforowicz/arbitrary-inner-type-in-named-impl-key

Arbitrary inner type in named impl key

Author: dtolnay

gen/src/out.rs

@@ -122,6 +122,13 @@ impl<'a> Write for Content<'a> {
     }
 }
 
+impl<'a> Write for OutFile<'a> {
+    fn write_str(&mut self, s: &str) -> fmt::Result {
+        self.content.borrow_mut().write(s);
+        Ok(())
+    }
+}
+
 impl<'a> PartialEq for Content<'a> {
     fn eq(&self, _other: &Self) -> bool {
         true