test: Use the new for protocol

src/libstd/dlist.rs

@@ -393,6 +393,7 @@ pub impl<T> DList<T> {
     }
 
     /// Iterate over nodes.
+    #[cfg(stage0)]
     fn each_node(@mut self, f: &fn(@mut DListNode<T>) -> bool) {
         let mut link = self.peek_n();
         while link.is_some() {
@@ -401,6 +402,17 @@ pub impl<T> DList<T> {
             link = nobe.next_link();
         }
     }
+    /// Iterate over nodes.
+    #[cfg(not(stage0))]
+    fn each_node(@mut self, f: &fn(@mut DListNode<T>) -> bool) -> bool {
+        let mut link = self.peek_n();
+        while link.is_some() {
+            let nobe = link.get();
+            if !f(nobe) { return false; }
+            link = nobe.next_link();
+        }
+        return true;
+    }
 
     /// Check data structure integrity. O(n).
     fn assert_consistent(@mut self) {

src/libstd/fileinput.rs

@@ -256,10 +256,21 @@ impl FileInput {
     (line numbers and file names, see documentation for
     `FileInputState`). Otherwise identical to `lines_each`.
     */
+    #[cfg(stage0)]
     pub fn each_line_state(&self,
                             f: &fn(&str, FileInputState) -> bool) {
          self.each_line(|line| f(line, copy self.fi.state));
     }
+    /**
+    Apply `f` to each line successively, along with some state
+    (line numbers and file names, see documentation for
+    `FileInputState`). Otherwise identical to `lines_each`.
+    */
+    #[cfg(not(stage0))]
+    pub fn each_line_state(&self,
+                            f: &fn(&str, FileInputState) -> bool) -> bool {
+         self.each_line(|line| f(line, copy self.fi.state))
+    }
 
 
     /**
@@ -367,10 +378,22 @@ reading from `stdin`).
 
 Fails when attempting to read from a file that can't be opened.
 */
+#[cfg(stage0)]
 pub fn input(f: &fn(&str) -> bool) {
     let mut i = FileInput::from_args();
     i.each_line(f);
 }
+/**
+Iterate directly over the command line arguments (no arguments implies
+reading from `stdin`).
+
+Fails when attempting to read from a file that can't be opened.
+*/
+#[cfg(not(stage0))]
+pub fn input(f: &fn(&str) -> bool) -> bool {
+    let mut i = FileInput::from_args();
+    i.each_line(f)
+}
 
 /**
 Iterate directly over the command line arguments (no arguments
@@ -379,20 +402,44 @@ provided at each call.
 
 Fails when attempting to read from a file that can't be opened.
 */
+#[cfg(stage0)]
 pub fn input_state(f: &fn(&str, FileInputState) -> bool) {
     let mut i = FileInput::from_args();
     i.each_line_state(f);
 }
+/**
+Iterate directly over the command line arguments (no arguments
+implies reading from `stdin`) with the current state of the iteration
+provided at each call.
+
+Fails when attempting to read from a file that can't be opened.
+*/
+#[cfg(not(stage0))]
+pub fn input_state(f: &fn(&str, FileInputState) -> bool) -> bool {
+    let mut i = FileInput::from_args();
+    i.each_line_state(f)
+}
 
 /**
 Iterate over a vector of files (an empty vector implies just `stdin`).
 
 Fails when attempting to read from a file that can't be opened.
 */
+#[cfg(stage0)]
 pub fn input_vec(files: ~[Option<Path>], f: &fn(&str) -> bool) {
     let mut i = FileInput::from_vec(files);
     i.each_line(f);
 }
+/**
+Iterate over a vector of files (an empty vector implies just `stdin`).
+
+Fails when attempting to read from a file that can't be opened.
+*/
+#[cfg(not(stage0))]
+pub fn input_vec(files: ~[Option<Path>], f: &fn(&str) -> bool) -> bool {
+    let mut i = FileInput::from_vec(files);
+    i.each_line(f)
+}
 
 /**
 Iterate over a vector of files (an empty vector implies just `stdin`)
@@ -400,11 +447,24 @@ with the current state of the iteration provided at each call.
 
 Fails when attempting to read from a file that can't be opened.
 */
+#[cfg(stage0)]
 pub fn input_vec_state(files: ~[Option<Path>],
                        f: &fn(&str, FileInputState) -> bool) {
     let mut i = FileInput::from_vec(files);
     i.each_line_state(f);
 }
+/**
+Iterate over a vector of files (an empty vector implies just `stdin`)
+with the current state of the iteration provided at each call.
+
+Fails when attempting to read from a file that can't be opened.
+*/
+#[cfg(not(stage0))]
+pub fn input_vec_state(files: ~[Option<Path>],
+                       f: &fn(&str, FileInputState) -> bool) -> bool {
+    let mut i = FileInput::from_vec(files);
+    i.each_line_state(f)
+}
 
 #[cfg(test)]
 mod test {

src/libstd/treemap.rs

@@ -674,7 +674,7 @@ impl<T: TotalOrd> Set<T> for TreeSet<T> {
                 a = x.next();
             }
         }
-        return a.each(|&x| f(x)) && y.advance(f);
+        return b.each(|&x| f(x)) && y.advance(f);
     }
 }
 
@@ -1326,7 +1326,7 @@ mod test_set {
     }
 
     fn check(a: &[int], b: &[int], expected: &[int],
-             f: &fn(&TreeSet<int>, &TreeSet<int>, f: &fn(&int) -> bool)) {
+             f: &fn(&TreeSet<int>, &TreeSet<int>, f: &fn(&int) -> bool) -> bool) {
         let mut set_a = TreeSet::new();
         let mut set_b = TreeSet::new();