From 85cba42a7bb154361519aafc4a3ec5121eb6691c Mon Sep 17 00:00:00 2001
From: Scott Olson <scott@solson.me>
Date: Mon, 19 Sep 2016 03:36:41 -0600
Subject: [PATCH] There will never be a PrimVal for fat pointers.

Instead, there will be a `Value::ByValPair` variant for holding fat pointers
(among other things) modelled after `OperandValue::Pair` in rustc's trans.
---
 src/interpreter/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/interpreter/mod.rs b/src/interpreter/mod.rs
index de05140377b3..0df25464bf0b 100644
--- a/src/interpreter/mod.rs
+++ b/src/interpreter/mod.rs
@@ -1006,7 +1006,7 @@ impl<'a, 'tcx> EvalContext<'a, 'tcx> {
                         Err(e) => return Err(e),
                     }
                 } else {
-                    return Err(EvalError::Unimplemented(format!("unimplemented: primitive read of fat pointer type: {:?}", ty)));
+                    bug!("primitive read of fat pointer type: {:?}", ty);
                 }
             }