Implement Clone for Copy types.

20 files changed, 39 insertions, 30 deletions

diff --git a/components/script/dom/bindings/callback.rs b/components/script/dom/bindings/callback.rs
index 1d3936f21bb..975e3cb99d9 100644
--- a/components/script/dom/bindings/callback.rs
+++ b/components/script/dom/bindings/callback.rs
@@ -16,7 +16,7 @@ use std::ffi::CString;
 use std::ptr;
 
 /// The exception handling used for a call.
-#[derive(Copy, PartialEq)]
+#[derive(Copy, Clone, PartialEq)]
 pub enum ExceptionHandling {
     /// Report any exception and don't throw it to the caller code.
     Report,
diff --git a/components/script/dom/bindings/codegen/CodegenRust.py b/components/script/dom/bindings/codegen/CodegenRust.py
index b48efbda91d..b63df28d349 100644
--- a/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/components/script/dom/bindings/codegen/CodegenRust.py
@@ -2917,7 +2917,7 @@ class CGEnum(CGThing):
 
         decl = """\
 #[repr(usize)]
-#[derive(PartialEq, Copy)]
+#[derive(PartialEq, Copy, Clone)]
 #[jstraceable]
 pub enum %s {
     %s
@@ -5388,8 +5388,8 @@ class GlobalGenRoots():
         return CGList([
             CGGeneric(AUTOGENERATED_WARNING_COMMENT),
             CGGeneric("pub const MAX_PROTO_CHAIN_LENGTH: usize = %d;\n\n" % config.maxProtoChainLength),
-            CGNonNamespacedEnum('ID', protos, [0], deriving="PartialEq, Copy"),
-            CGNonNamespacedEnum('Proxies', proxies, [0], deriving="PartialEq, Copy"),
+            CGNonNamespacedEnum('ID', protos, [0], deriving="PartialEq, Copy, Clone"),
+            CGNonNamespacedEnum('Proxies', proxies, [0], deriving="PartialEq, Copy, Clone"),
         ])
 
 
diff --git a/components/script/dom/bindings/global.rs b/components/script/dom/bindings/global.rs
index 8297c2244a9..1b34844fa53 100644
--- a/components/script/dom/bindings/global.rs
+++ b/components/script/dom/bindings/global.rs
@@ -25,7 +25,7 @@ use js::jsapi::{JS_GetClass};
 use url::Url;
 
 /// A freely-copyable reference to a rooted global object.
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 pub enum GlobalRef<'a> {
     /// A reference to a `Window` object.
     Window(JSRef<'a, window::Window>),
diff --git a/components/script/dom/bindings/js.rs b/components/script/dom/bindings/js.rs
index 115fcdbbe97..c80aa48b4ac 100644
--- a/components/script/dom/bindings/js.rs
+++ b/components/script/dom/bindings/js.rs
@@ -124,6 +124,9 @@ impl<T: Reflectable> Rootable<T> for Unrooted<T> {
 }
 
 impl<T> Copy for Unrooted<T> {}
+impl<T> Clone for Unrooted<T> {
+    fn clone(&self) -> Unrooted<T> { *self }
+}
 
 /// A type that represents a JS-owned value that is rooted for the lifetime of
 /// this value. Importantly, it requires explicit rooting in order to interact
@@ -545,6 +548,9 @@ pub struct RootCollection {
 pub struct RootCollectionPtr(pub *const RootCollection);
 
 impl Copy for RootCollectionPtr {}
+impl Clone for RootCollectionPtr {
+    fn clone(&self) -> RootCollectionPtr { *self }
+}
 
 impl RootCollection {
     /// Create an empty collection of roots
diff --git a/components/script/dom/bindings/utils.rs b/components/script/dom/bindings/utils.rs
index 369a4f11d88..2c96fa2c0dd 100644
--- a/components/script/dom/bindings/utils.rs
+++ b/components/script/dom/bindings/utils.rs
@@ -129,7 +129,7 @@ pub struct NativePropertyHooks {
 }
 
 /// The struct that holds inheritance information for DOM object reflectors.
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 pub struct DOMClass {
     /// A list of interfaces that this object implements, in order of decreasing
     /// derivedness.
@@ -148,6 +148,9 @@ pub struct DOMJSClass {
     /// Associated data for DOM object reflectors.
     pub dom_class: DOMClass
 }
+impl Clone for DOMJSClass {
+    fn clone(&self) -> DOMJSClass { *self }
+}
 unsafe impl Sync for DOMJSClass {}
 
 /// Returns the ProtoOrIfaceArray for the given global object.
diff --git a/components/script/dom/domexception.rs b/components/script/dom/domexception.rs
index 1c5a436199f..414e4481f16 100644
--- a/components/script/dom/domexception.rs
+++ b/components/script/dom/domexception.rs
@@ -13,7 +13,7 @@ use util::str::DOMString;
 use std::borrow::ToOwned;
 
 #[repr(u16)]
-#[derive(Copy, Debug)]
+#[derive(Copy, Clone, Debug)]
 #[jstraceable]
 pub enum DOMErrorName {
     IndexSizeError = DOMExceptionConstants::INDEX_SIZE_ERR,
diff --git a/components/script/dom/element.rs b/components/script/dom/element.rs
index 03f8f17195f..a936e783ad4 100644
--- a/components/script/dom/element.rs
+++ b/components/script/dom/element.rs
@@ -108,7 +108,7 @@ impl ElementDerived for EventTarget {
     }
 }
 
-#[derive(Copy, PartialEq, Debug)]
+#[derive(Copy, Clone, PartialEq, Debug)]
 #[jstraceable]
 pub enum ElementTypeId {
     HTMLElement(HTMLElementTypeId),
diff --git a/components/script/dom/event.rs b/components/script/dom/event.rs
index 55883659c39..4f0086310aa 100644
--- a/components/script/dom/event.rs
+++ b/components/script/dom/event.rs
@@ -19,7 +19,7 @@ use std::default::Default;
 use time;
 
 #[jstraceable]
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 #[repr(u16)]
 pub enum EventPhase {
     None      = EventConstants::NONE,
diff --git a/components/script/dom/eventtarget.rs b/components/script/dom/eventtarget.rs
index ab0e73ec8de..01e436c9743 100644
--- a/components/script/dom/eventtarget.rs
+++ b/components/script/dom/eventtarget.rs
@@ -33,14 +33,14 @@ use url::Url;
 
 use std::collections::HashMap;
 
-#[derive(Copy, PartialEq)]
+#[derive(Copy, Clone, PartialEq)]
 #[jstraceable]
 pub enum ListenerPhase {
     Capturing,
     Bubbling,
 }
 
-#[derive(Copy, PartialEq)]
+#[derive(Copy, Clone, PartialEq)]
 #[jstraceable]
 pub enum EventTargetTypeId {
     Node(NodeTypeId),
@@ -51,7 +51,7 @@ pub enum EventTargetTypeId {
     XMLHttpRequestEventTarget(XMLHttpRequestEventTargetTypeId)
 }
 
-#[derive(Copy, PartialEq)]
+#[derive(Copy, Clone, PartialEq)]
 #[jstraceable]
 pub enum EventListenerType {
     Additive(EventListener),
@@ -67,7 +67,7 @@ impl EventListenerType {
     }
 }
 
-#[derive(Copy, PartialEq)]
+#[derive(Copy, Clone, PartialEq)]
 #[jstraceable]
 #[privatize]
 pub struct EventListenerEntry {
diff --git a/components/script/dom/htmlbuttonelement.rs b/components/script/dom/htmlbuttonelement.rs
index 57ce2aed0f0..22c1b67656a 100644
--- a/components/script/dom/htmlbuttonelement.rs
+++ b/components/script/dom/htmlbuttonelement.rs
@@ -29,7 +29,7 @@ use std::cell::Cell;
 use string_cache::Atom;
 
 #[jstraceable]
-#[derive(PartialEq, Copy)]
+#[derive(PartialEq, Copy, Clone)]
 #[allow(dead_code)]
 enum ButtonType {
     ButtonSubmit,
diff --git a/components/script/dom/htmlelement.rs b/components/script/dom/htmlelement.rs
index 0b5fa1b5639..f42aceced3a 100644
--- a/components/script/dom/htmlelement.rs
+++ b/components/script/dom/htmlelement.rs
@@ -239,7 +239,7 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLElement> {
     }
 }
 
-#[derive(Copy, PartialEq, Debug)]
+#[derive(Copy, Clone, PartialEq, Debug)]
 #[jstraceable]
 pub enum HTMLElementTypeId {
     HTMLElement,
diff --git a/components/script/dom/htmlformelement.rs b/components/script/dom/htmlformelement.rs
index abb3ec98aa6..c5c1ae2e77a 100644
--- a/components/script/dom/htmlformelement.rs
+++ b/components/script/dom/htmlformelement.rs
@@ -133,13 +133,13 @@ impl<'a> HTMLFormElementMethods for JSRef<'a, HTMLFormElement> {
     }
 }
 
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 pub enum SubmittedFrom {
     FromFormSubmitMethod,
     NotFromFormSubmitMethod
 }
 
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 pub enum ResetFrom {
     FromFormResetMethod,
     NotFromFormResetMethod
@@ -407,21 +407,21 @@ pub struct FormDatum {
     pub value: DOMString
 }
 
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 pub enum FormEncType {
     TextPlainEncoded,
     UrlEncoded,
     FormDataEncoded
 }
 
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 pub enum FormMethod {
     FormGet,
     FormPost,
     FormDialog
 }
 
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 pub enum FormSubmitter<'a> {
     FormElement(JSRef<'a, HTMLFormElement>),
     InputElement(JSRef<'a, HTMLInputElement>),
diff --git a/components/script/dom/htmlinputelement.rs b/components/script/dom/htmlinputelement.rs
index e72d13295ec..379327d760a 100644
--- a/components/script/dom/htmlinputelement.rs
+++ b/components/script/dom/htmlinputelement.rs
@@ -48,7 +48,7 @@ const DEFAULT_SUBMIT_VALUE: &'static str = "Submit";
 const DEFAULT_RESET_VALUE: &'static str = "Reset";
 
 #[jstraceable]
-#[derive(PartialEq, Copy)]
+#[derive(PartialEq, Copy, Clone)]
 #[allow(dead_code)]
 enum InputType {
     InputSubmit,
diff --git a/components/script/dom/htmlmediaelement.rs b/components/script/dom/htmlmediaelement.rs
index 331d43e8aba..86a882dbb86 100644
--- a/components/script/dom/htmlmediaelement.rs
+++ b/components/script/dom/htmlmediaelement.rs
@@ -38,7 +38,7 @@ impl HTMLMediaElement {
     }
 }
 
-#[derive(Copy, PartialEq, Debug)]
+#[derive(Copy, Clone, PartialEq, Debug)]
 #[jstraceable]
 pub enum HTMLMediaElementTypeId {
     HTMLAudioElement,
diff --git a/components/script/dom/htmltablecellelement.rs b/components/script/dom/htmltablecellelement.rs
index 1737bddcb84..378a804c361 100644
--- a/components/script/dom/htmltablecellelement.rs
+++ b/components/script/dom/htmltablecellelement.rs
@@ -16,7 +16,7 @@ use cssparser::RGBA;
 use util::str::{self, DOMString, LengthOrPercentageOrAuto};
 use std::cell::Cell;
 
-#[derive(Copy, PartialEq, Debug)]
+#[derive(Copy, Clone, PartialEq, Debug)]
 #[jstraceable]
 pub enum HTMLTableCellElementTypeId {
     HTMLTableDataCellElement,
diff --git a/components/script/dom/node.rs b/components/script/dom/node.rs
index f8dc318b6c6..d5e3482a10e 100644
--- a/components/script/dom/node.rs
+++ b/components/script/dom/node.rs
@@ -190,7 +190,7 @@ impl Drop for Node {
 /// suppress observers flag
 /// https://dom.spec.whatwg.org/#concept-node-insert
 /// https://dom.spec.whatwg.org/#concept-node-remove
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 enum SuppressObserver {
     Suppressed,
     Unsuppressed
@@ -266,7 +266,7 @@ impl LayoutDataRef {
 }
 
 /// The different types of nodes.
-#[derive(Copy, PartialEq, Debug)]
+#[derive(Copy, Clone, PartialEq, Debug)]
 #[jstraceable]
 pub enum NodeTypeId {
     DocumentType,
@@ -1311,7 +1311,7 @@ impl Iterator for TreeIterator {
 
 
 /// Specifies whether children must be recursively cloned or not.
-#[derive(Copy, PartialEq)]
+#[derive(Copy, Clone, PartialEq)]
 pub enum CloneChildrenFlag {
     CloneChildren,
     DoNotCloneChildren
diff --git a/components/script/dom/servohtmlparser.rs b/components/script/dom/servohtmlparser.rs
index fbd89a27787..199c06dca35 100644
--- a/components/script/dom/servohtmlparser.rs
+++ b/components/script/dom/servohtmlparser.rs
@@ -33,7 +33,7 @@ pub struct Sink {
 
 /// FragmentContext is used only to pass this group of related values
 /// into functions.
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 pub struct FragmentContext<'a> {
     pub context_elem: JSRef<'a, Node>,
     pub form_elem: Option<JSRef<'a, Node>>,
diff --git a/components/script/dom/workerglobalscope.rs b/components/script/dom/workerglobalscope.rs
index ec58f3e4221..8723454182b 100644
--- a/components/script/dom/workerglobalscope.rs
+++ b/components/script/dom/workerglobalscope.rs
@@ -34,7 +34,7 @@ use std::rc::Rc;
 use std::cell::Cell;
 use url::{Url, UrlParser};
 
-#[derive(Copy, PartialEq)]
+#[derive(Copy, Clone, PartialEq)]
 #[jstraceable]
 pub enum WorkerGlobalScopeTypeId {
     DedicatedGlobalScope,
diff --git a/components/script/dom/xmlhttprequest.rs b/components/script/dom/xmlhttprequest.rs
index 3e84dfc0037..73748b27f14 100644
--- a/components/script/dom/xmlhttprequest.rs
+++ b/components/script/dom/xmlhttprequest.rs
@@ -67,7 +67,7 @@ use dom::bindings::codegen::UnionTypes::StringOrURLSearchParams;
 use dom::bindings::codegen::UnionTypes::StringOrURLSearchParams::{eString, eURLSearchParams};
 pub type SendParam = StringOrURLSearchParams;
 
-#[derive(PartialEq, Copy)]
+#[derive(PartialEq, Copy, Clone)]
 #[jstraceable]
 enum XMLHttpRequestState {
     Unsent = 0,
diff --git a/components/script/dom/xmlhttprequesteventtarget.rs b/components/script/dom/xmlhttprequesteventtarget.rs
index e27496ec2d9..2457f192883 100644
--- a/components/script/dom/xmlhttprequesteventtarget.rs
+++ b/components/script/dom/xmlhttprequesteventtarget.rs
@@ -9,7 +9,7 @@ use dom::bindings::codegen::InheritTypes::XMLHttpRequestEventTargetDerived;
 use dom::bindings::js::JSRef;
 use dom::eventtarget::{EventTarget, EventTargetHelpers, EventTargetTypeId};
 
-#[derive(Copy, PartialEq)]
+#[derive(Copy, Clone, PartialEq)]
 #[jstraceable]
 pub enum XMLHttpRequestEventTargetTypeId {
     XMLHttpRequest,