1 files changed, 0 insertions, 105 deletions
diff --git a/components/util/task_state.rs b/components/util/task_state.rs
deleted file mode 100644
index f67e059c4c1..00000000000
--- a/components/util/task_state.rs
+++ /dev/null
@@ -1,105 +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/. */
-
-//! Supports dynamic assertions in debug builds about what sort of task is
-//! running and what state it's in.
-//!
-//! In release builds, `get` returns 0.  All of the other functions inline
-//! away to nothing.
-
-pub use self::imp::{enter, exit, get, initialize};
-
-bitflags! {
-    flags TaskState: u32 {
-        const SCRIPT          = 0x01,
-        const LAYOUT          = 0x02,
-        const PAINT           = 0x04,
-
-        const IN_WORKER       = 0x0100,
-        const IN_GC           = 0x0200,
-        const IN_HTML_PARSER  = 0x0400,
-    }
-}
-
-macro_rules! task_types ( ( $( $fun:ident = $flag:ident ; )* ) => (
-    impl TaskState {
-        $(
-            #[cfg(debug_assertions)]
-            pub fn $fun(self) -> bool {
-                self.contains($flag)
-            }
-            #[cfg(not(debug_assertions))]
-            pub fn $fun(self) -> bool {
-                true
-            }
-        )*
-    }
-
-    #[cfg(debug_assertions)]
-    static TYPES: &'static [TaskState]
-        = &[ $( $flag ),* ];
-));
-
-task_types! {
-    is_script = SCRIPT;
-    is_layout = LAYOUT;
-    is_paint = PAINT;
-}
-
-#[cfg(debug_assertions)]
-mod imp {
-    use std::cell::RefCell;
-    use super::{TYPES, TaskState};
-
-    thread_local!(static STATE: RefCell<Option<TaskState>> = RefCell::new(None));
-
-    pub fn initialize(x: TaskState) {
-        STATE.with(|ref k| {
-            match *k.borrow() {
-                Some(s) => panic!("Task state already initialized as {:?}", s),
-                None => ()
-            };
-            *k.borrow_mut() = Some(x);
-        });
-        get(); // check the assertion below
-    }
-
-    pub fn get() -> TaskState {
-        let state = STATE.with(|ref k| {
-            match *k.borrow() {
-                None => panic!("Task state not initialized"),
-                Some(s) => s,
-            }
-        });
-
-        // Exactly one of the task type flags should be set.
-        assert_eq!(1, TYPES.iter().filter(|&&ty| state.contains(ty)).count());
-        state
-    }
-
-    pub fn enter(x: TaskState) {
-        let state = get();
-        assert!(!state.intersects(x));
-        STATE.with(|ref k| {
-            *k.borrow_mut() = Some(state | x);
-        })
-    }
-
-    pub fn exit(x: TaskState) {
-        let state = get();
-        assert!(state.contains(x));
-        STATE.with(|ref k| {
-            *k.borrow_mut() = Some(state & !x);
-        })
-    }
-}
-
-#[cfg(not(debug_assertions))]
-mod imp {
-    use super::TaskState;
-    #[inline(always)] pub fn initialize(_: TaskState) { }
-    #[inline(always)] pub fn get() -> TaskState { TaskState::empty() }
-    #[inline(always)] pub fn enter(_: TaskState) { }
-    #[inline(always)] pub fn exit(_: TaskState) { }
-}