---

yaml
---
r: 3307
b: refs/heads/master
c: 8746b84
h: refs/heads/master
i:
  3305: b4bf04e
  3303: 10be295
v: v3

Author: brson

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b4c3b83f26641c3d868e84b991fe88c8c556688c
+refs/heads/master: 8746b84eecb784266c49237ef5159787af4b863d

trunk/src/comp/front/parser.rs

@@ -891,6 +891,8 @@ fn parse_bottom_expr(&parser p) -> @ast::expr {
     } else if (eat_word(p, "ret")) {
         alt (p.peek()) {
             case (token::SEMI) { ex = ast::expr_ret(none); }
+            // Handle ret as the block result expression
+            case (token::RBRACE) { ex = ast::expr_ret(none); }
             case (_) {
                 auto e = parse_expr(p);
                 hi = e.span.hi;

trunk/src/test/run-pass/expr-empty-ret.rs

@@ -0,0 +1,11 @@
+// xfail-stage0
+// Issue #521
+
+fn f() {
+  auto x = alt (true) {
+    case (true) { 10 }
+    case (false) { ret }
+  };
+}
+
+fn main() { }