---

yaml
---
r: 156271
b: refs/heads/snap-stage3
c: b003f10
h: refs/heads/master
i:
  156269: 7665f7a
  156267: c2c29bc
  156263: 06c5e7b
  156255: a7ec035
v: v3

Author: hydhknn

[refs]

@@ -1,7 +1,7 @@
 ---
 refs/heads/master: c29a7520e7fb4a5b4d4eccfc594e05793ef6688d
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
-refs/heads/snap-stage3: 0c2c8116a307e88f8327e0ea846d2c9c135193b7
+refs/heads/snap-stage3: b003f104490599c49d27842c9a25b158e7cccdcb
 refs/heads/try: 6601b0501e31d08d3892a2d5a7d8a57ab120bf75
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b

branches/snap-stage3/src/libsyntax/ast.rs

@@ -581,7 +581,8 @@ pub struct QPath {
 #[deriving(Clone, PartialEq, Eq, Encodable, Decodable, Hash, Show)]
 pub enum MatchSource {
     MatchNormal,
-    MatchIfLetDesugar
+    MatchIfLetDesugar,
+    MatchWhileLetDesugar,
 }
 
 #[deriving(Clone, PartialEq, Eq, Encodable, Decodable, Hash, Show)]

branches/snap-stage3/src/libsyntax/ext/build.rs

@@ -147,6 +147,8 @@ pub trait AstBuilder {
     fn expr_some(&self, sp: Span, expr: P<ast::Expr>) -> P<ast::Expr>;
     fn expr_none(&self, sp: Span) -> P<ast::Expr>;
 
+    fn expr_break(&self, sp: Span) -> P<ast::Expr>;
+
     fn expr_tuple(&self, sp: Span, exprs: Vec<P<ast::Expr>>) -> P<ast::Expr>;
 
     fn expr_fail(&self, span: Span, msg: InternedString) -> P<ast::Expr>;
@@ -688,6 +690,12 @@ impl<'a> AstBuilder for ExtCtxt<'a> {
         self.expr_path(none)
     }
 
+
+    fn expr_break(&self, sp: Span) -> P<ast::Expr> {
+        self.expr(sp, ast::ExprBreak(None))
+    }
+
+
     fn expr_tuple(&self, sp: Span, exprs: Vec<P<ast::Expr>>) -> P<ast::Expr> {
         self.expr(sp, ast::ExprTup(exprs))
     }