1 files changed, 0 insertions, 84 deletions
diff --git a/src/components/layout/flow_ref.rs b/src/components/layout/flow_ref.rs
deleted file mode 100644
index d90d9ac4cc0..00000000000
--- a/src/components/layout/flow_ref.rs
+++ /dev/null
@@ -1,84 +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/. */
-
-/// Reference-counted pointers to flows.
-///
-/// Eventually, with dynamically sized types in Rust, much of this code will be superfluous.
-
-use flow::Flow;
-use flow;
-
-use std::mem;
-use std::ptr;
-use std::raw;
-use std::sync::atomics::SeqCst;
-
-#[unsafe_no_drop_flag]
-pub struct FlowRef {
-    object: raw::TraitObject,
-}
-
-impl FlowRef {
-    pub fn new(mut flow: Box<Flow>) -> FlowRef {
-        unsafe {
-            let result = {
-                let flow_ref: &mut Flow = flow;
-                let object = mem::transmute::<&mut Flow, raw::TraitObject>(flow_ref);
-                FlowRef { object: object }
-            };
-            mem::forget(flow);
-            result
-        }
-    }
-
-    pub fn get<'a>(&'a self) -> &'a Flow {
-        unsafe {
-            mem::transmute_copy::<raw::TraitObject, &'a Flow>(&self.object)
-        }
-    }
-
-    pub fn get_mut<'a>(&'a mut self) -> &'a mut Flow {
-        unsafe {
-            mem::transmute_copy::<raw::TraitObject, &'a mut Flow>(&self.object)
-        }
-    }
-}
-
-impl Drop for FlowRef {
-    fn drop(&mut self) {
-        unsafe {
-            if self.object.vtable.is_null() {
-                return
-            }
-            if flow::base(self.get()).ref_count().fetch_sub(1, SeqCst) > 1 {
-                return
-            }
-            let flow_ref: FlowRef = mem::replace(self, FlowRef {
-                object: raw::TraitObject {
-                    vtable: ptr::mut_null(),
-                    data: ptr::mut_null(),
-                }
-            });
-            drop(mem::transmute::<raw::TraitObject, Box<Flow>>(flow_ref.object));
-            mem::forget(flow_ref);
-            self.object.vtable = ptr::mut_null();
-            self.object.data = ptr::mut_null();
-        }
-    }
-}
-
-impl Clone for FlowRef {
-    fn clone(&self) -> FlowRef {
-        unsafe {
-            drop(flow::base(self.get()).ref_count().fetch_add(1, SeqCst));
-            FlowRef {
-                object: raw::TraitObject {
-                    vtable: self.object.vtable,
-                    data: self.object.data,
-                }
-            }
-        }
-    }
-}
-