Add support for labeled while loops.

2014-07-25 20:12:51 -04:00
parent 5419b2ca2c
commit 373b9d6243
21 changed files with 97 additions and 24 deletions
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -524,7 +524,8 @@ pub enum Expr_ {
    ExprLit(Gc<Lit>),
    ExprCast(Gc<Expr>, P<Ty>),
    ExprIf(Gc<Expr>, P<Block>, Option<Gc<Expr>>),
-    ExprWhile(Gc<Expr>, P<Block>),
+    // FIXME #6993: change to Option<Name> ... or not, if these are hygienic.
+    ExprWhile(Gc<Expr>, P<Block>, Option<Ident>),
    // FIXME #6993: change to Option<Name> ... or not, if these are hygienic.
    ExprForLoop(Gc<Pat>, Gc<Expr>, P<Block>, Option<Ident>),
    // Conditionless loop (can be exited with break, cont, or ret)