syntax: implement foreach .. in .. { .. } via desugaring.

2013-07-29 17:25:00 -07:00
parent 9a2d183d6a
commit c29e9fb60b
17 changed files with 215 additions and 3 deletions
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -1228,6 +1228,14 @@ pub fn print_expr(s: @ps, expr: &ast::expr) {
        space(s.s);
        print_block(s, blk);
      }
+      ast::expr_for_loop(pat, iter, ref blk) => {
+        head(s, "foreach");
+        print_pat(s, pat);
+        word_space(s, "in");
+        print_expr(s, iter);
+        space(s.s);
+        print_block(s, blk);
+      }
      ast::expr_loop(ref blk, opt_ident) => {
        for opt_ident.iter().advance |ident| {
            word(s.s, "'");