From 818472335762a70c72497c9b2a3432db5bff5a90 Mon Sep 17 00:00:00 2001
From: Niko Matsakis <niko@alum.mit.edu>
Date: Fri, 28 Sep 2018 17:39:21 -0400
Subject: [PATCH] more comments

---
 examples/hello_world/implementation.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/examples/hello_world/implementation.rs b/examples/hello_world/implementation.rs
index 2a63ea0e..b84d8182 100644
--- a/examples/hello_world/implementation.rs
+++ b/examples/hello_world/implementation.rs
@@ -38,6 +38,10 @@ impl CompilerQueryContext for QueryContextImpl {
 // FIXME: This code... probably should not live here. But maybe we
 // just want to provide some helpers or something? I do suspect I want
 // people to be able to customize this.
+//
+// Seems like a classic case where specialization could be useful to
+// permit behavior refinement.
+
 impl BaseQueryContext for QueryContextImpl {
     type QueryDescriptor = DynDescriptor;