---

yaml
---
r: 63111
b: refs/heads/snap-stage3
c: 1cf57f7
h: refs/heads/master
i:
  63109: 28a8a3a
  63107: 6d35e29
  63103: cd6fe44
v: v3

Author: bors

[refs]

@@ -1,7 +1,7 @@
 ---
 refs/heads/master: 2d28d645422c1617be58c8ca7ad9a457264ca850
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
-refs/heads/snap-stage3: 88517f98743a5cbaaa818376eea77229da3c8453
+refs/heads/snap-stage3: 1cf57f7b673ca94a32ec82c31b2bce79a5ca9394
 refs/heads/try: 7b78b52e602bb3ea8174f9b2006bff3315f03ef9
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b

branches/snap-stage3/doc/tutorial.md

@@ -1442,10 +1442,15 @@ call_closure_with_ten(closure);
 ~~~~
 
 Closures begin with the argument list between vertical bars and are followed by
-a single expression. The types of the arguments are generally omitted,
-as is the return type, because the compiler can almost always infer
-them. In the rare case where the compiler needs assistance, though, the
-arguments and return types may be annotated.
+a single expression. Remember that a block, `{ <expr1>; <expr2>; ... }`, is
+considered a single expression: it evaluates to the result of the last
+expression it contains if that expression is not followed by a semicolon,
+otherwise the block evaluates to `()`.
+
+The types of the arguments are generally omitted, as is the return type,
+because the compiler can almost always infer them. In the rare case where the
+compiler needs assistance, though, the arguments and return types may be
+annotated.
 
 ~~~~
 let square = |x: int| -> uint { x * x as uint };