From 00cf176a5ee694907e5bddd5ff56d5e318e0edc8 Mon Sep 17 00:00:00 2001
From: Niko Matsakis <niko@alum.mit.edu>
Date: Mon, 29 Dec 2014 11:03:04 -0500
Subject: [PATCH] Add FIXMEs relating to caching of projection results

---
 src/librustc/middle/traits/fulfill.rs    | 2 ++
 src/librustc_trans/trans/monomorphize.rs | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/librustc/middle/traits/fulfill.rs b/src/librustc/middle/traits/fulfill.rs
index e72d5b405c4e..b55504da237a 100644
--- a/src/librustc/middle/traits/fulfill.rs
+++ b/src/librustc/middle/traits/fulfill.rs
@@ -115,6 +115,8 @@ impl<'tcx> FulfillmentContext<'tcx> {
 
         assert!(!trait_ref.has_escaping_regions());
 
+        // FIXME(#20304) -- cache
+
         let ty_var = infcx.next_ty_var();
         let projection =
             ty::Binder(ty::ProjectionPredicate {
diff --git a/src/librustc_trans/trans/monomorphize.rs b/src/librustc_trans/trans/monomorphize.rs
index dcfe5f40ecee..6e52454fa783 100644
--- a/src/librustc_trans/trans/monomorphize.rs
+++ b/src/librustc_trans/trans/monomorphize.rs
@@ -319,7 +319,7 @@ pub fn normalize_associated_type<'tcx,T>(tcx: &ty::ctxt<'tcx>, t: &T) -> T
         return t.clone();
     }
 
-    // TODO cache
+    // FIXME(#20304) -- cache
 
     let infcx = infer::new_infer_ctxt(tcx);
     let param_env = ty::empty_parameter_environment();