Move util::print_tree to gfx_traits

components/util/lib.rs

@@ -42,7 +42,6 @@ pub mod geometry;
 #[allow(unsafe_code)] pub mod opts;
 #[cfg(feature = "servo")] pub mod panicking;
 pub mod prefs;
-#[cfg(feature = "servo")] pub mod print_tree;
 pub mod resource_files;
 pub mod str;
 pub mod thread;

components/util/print_tree.rs

@@ -1,65 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/// A struct that makes it easier to print out a pretty tree of data, which
-/// can be visually scanned more easily.
-pub struct PrintTree {
-    /// The current level of recursion.
-    level: u32,
-
-    /// An item which is queued up, so that we can determine if we need
-    /// a mid-tree prefix or a branch ending prefix.
-    queued_item: Option<String>,
-}
-
-impl PrintTree {
-    pub fn new(title: String) -> PrintTree {
-        println!("┌ {}", title);
-        PrintTree {
-            level: 1,
-            queued_item: None,
-        }
-    }
-
-    /// Descend one level in the tree with the given title.
-    pub fn new_level(&mut self, title: String) {
-        self.flush_queued_item("├─");
-
-        self.print_level_prefix();
-        println!("├─ {}", title);
-
-        self.level = self.level + 1;
-    }
-
-    /// Ascend one level in the tree.
-    pub fn end_level(&mut self) {
-        self.flush_queued_item("└─");
-        self.level = self.level - 1;
-    }
-
-    /// Add an item to the current level in the tree.
-    pub fn add_item(&mut self, text: String) {
-        self.flush_queued_item("├─");
-        self.queued_item = Some(text);
-    }
-
-    fn print_level_prefix(&self) {
-        for _ in 0..self.level {
-            print!("│  ");
-        }
-    }
-
-    fn flush_queued_item(&mut self, prefix: &str) {
-        if let Some(queued_item) = self.queued_item.take() {
-            self.print_level_prefix();
-            println!("{} {}", prefix, queued_item);
-        }
-    }
-}
-
-impl Drop for PrintTree {
-    fn drop(&mut self) {
-        self.flush_queued_item("└─");
-    }
-}