---

yaml
---
r: 47531
b: refs/heads/try
c: 6bb6bab
h: refs/heads/master
i:
  47529: 30447c7
  47527: 72c257c
v: v3

Author: jld

[refs]

@@ -2,7 +2,7 @@
 refs/heads/master: 3bbcac322669cff3abde5be937cc4ec3860f3985
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: a6d9689399d091c3265f00434a69c551a61c28dc
-refs/heads/try: 075affa50d04c585a53d0c8e7b66bae372a72648
+refs/heads/try: 6bb6baba2cbcd885b53709bdd907e7053867a71e
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: 147ecfdd8221e4a4d4e090486829a06da1e0ca3c

branches/try/src/librustc/middle/trans/expr.rs

@@ -1644,22 +1644,8 @@ fn trans_imm_cast(bcx: block, expr: @ast::expr,
             (cast_enum, cast_integral) |
             (cast_enum, cast_float) => {
                 let bcx = bcx;
-                let in_tid = match ty::get(t_in).sty {
-                    ty::ty_enum(did, _) => did,
-                    _ => ccx.sess.bug(~"enum cast source is not enum")
-                };
-                let variants = ty::enum_variants(ccx.tcx, in_tid);
-                let lldiscrim_a = if variants.len() == 1 {
-                    // Univariants don't have a discriminant field,
-                    // because there's only one value it could have:
-                    C_integral(T_enum_discrim(ccx),
-                               variants[0].disr_val as u64, True)
-                } else {
-                    let llenumty = T_opaque_enum_ptr(ccx);
-                    let av_enum = PointerCast(bcx, llexpr, llenumty);
-                    let lldiscrim_a_ptr = GEPi(bcx, av_enum, [0u, 0u]);
-                    Load(bcx, lldiscrim_a_ptr)
-                };
+                let repr = adt::represent_type(ccx, t_in);
+                let lldiscrim_a = adt::trans_cast_to_int(bcx, &repr, llexpr);
                 match k_out {
                     cast_integral => int_cast(bcx, ll_t_out,
                                               val_ty(lldiscrim_a),