From 760c71dc4f1b362875c06170ee6c51dd9d6fe576 Mon Sep 17 00:00:00 2001
From: Tim Chevalier <chevalier@alum.wellesley.edu>
Date: Mon, 27 May 2013 17:03:04 -0700
Subject: syntax: Add an each_view_item method on traits

---
 src/libsyntax/ast_util.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/libsyntax')

diff --git a/src/libsyntax/ast_util.rs b/src/libsyntax/ast_util.rs
index 4da2d500dd8..fb517317a4f 100644
--- a/src/libsyntax/ast_util.rs
+++ b/src/libsyntax/ast_util.rs
@@ -560,6 +560,21 @@ pub fn walk_pat(pat: @pat, it: &fn(@pat) -> bool) -> bool {
     }
 }
 
+pub trait EachViewItem {
+    pub fn each_view_item(&self, f: @fn(@ast::view_item) -> bool) -> bool;
+}
+
+impl EachViewItem for ast::crate {
+    fn each_view_item(&self, f: @fn(@ast::view_item) -> bool) -> bool {
+        let broke = @mut false;
+        let vtor: visit::vt<()> = visit::mk_simple_visitor(@visit::SimpleVisitor {
+            visit_view_item: |vi| { *broke = f(vi); }, ..*visit::default_simple_visitor()
+        });
+        visit::visit_crate(self, (), vtor);
+        true
+    }
+}
+
 pub fn view_path_id(p: @view_path) -> node_id {
     match p.node {
       view_path_simple(_, _, id) |
-- 
cgit 1.4.1-3-g733a5