Auto merge of #10222 - faineance:master, r=KiChjang

Use self.0 instead of destructuring single item tuple structs.

Closes #9698.

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17 files changed, 37 insertions, 71 deletions

diff --git a/components/compositing/surface_map.rs b/components/compositing/surface_map.rs
index d5f0cfba2f7..97b10a0677e 100644
--- a/components/compositing/surface_map.rs
+++ b/components/compositing/surface_map.rs
@@ -29,8 +29,7 @@ struct SurfaceKey([i32; 2]);
 
 impl Hash for SurfaceKey {
     fn hash<H: Hasher>(&self, state: &mut H) {
-        let SurfaceKey(ref bytes) = *self;
-        bytes.hash(state);
+        self.0.hash(state);
     }
 }
 
diff --git a/components/gfx_traits/lib.rs b/components/gfx_traits/lib.rs
index b7af8286af0..5833e847a91 100644
--- a/components/gfx_traits/lib.rs
+++ b/components/gfx_traits/lib.rs
@@ -140,8 +140,7 @@ pub struct Epoch(pub u32);
 
 impl Epoch {
     pub fn next(&mut self) {
-        let Epoch(ref mut u) = *self;
-        *u += 1;
+        self.0 += 1;
     }
 }
 
@@ -150,7 +149,6 @@ pub struct FrameTreeId(pub u32);
 
 impl FrameTreeId {
     pub fn next(&mut self) {
-        let FrameTreeId(ref mut u) = *self;
-        *u += 1;
+        self.0 += 1;
     }
 }
diff --git a/components/layout/block.rs b/components/layout/block.rs
index b987313b21f..a502611df3b 100644
--- a/components/layout/block.rs
+++ b/components/layout/block.rs
@@ -471,8 +471,7 @@ impl<'a> PreorderFlowTraversal for AbsoluteAssignBSizesTraversal<'a> {
             return
         }
 
-        let AbsoluteAssignBSizesTraversal(ref layout_context) = *self;
-        block.calculate_absolute_block_size_and_margins(*layout_context);
+        block.calculate_absolute_block_size_and_margins(&self.0);
     }
 }
 
diff --git a/components/layout/opaque_node.rs b/components/layout/opaque_node.rs
index 2b307288afa..8bde9e6cc09 100644
--- a/components/layout/opaque_node.rs
+++ b/components/layout/opaque_node.rs
@@ -38,7 +38,6 @@ impl OpaqueNodeMethods for OpaqueNode {
     }
 
     fn to_untrusted_node_address(&self) -> UntrustedNodeAddress {
-        let OpaqueNode(addr) = *self;
-        UntrustedNodeAddress(addr as *const c_void)
+        UntrustedNodeAddress(self.0 as *const c_void)
     }
 }
diff --git a/components/net/fetch/cors_cache.rs b/components/net/fetch/cors_cache.rs
index 63c62f37c23..dc640ce4c37 100644
--- a/components/net/fetch/cors_cache.rs
+++ b/components/net/fetch/cors_cache.rs
@@ -124,16 +124,14 @@ impl BasicCORSCache {
     fn find_entry_by_header<'a>(&'a mut self, request: &CacheRequestDetails,
                                 header_name: &str) -> Option<&'a mut CORSCacheEntry> {
         self.cleanup();
-        let BasicCORSCache(ref mut buf) = *self;
-        buf.iter_mut().find(|e| match_headers(e, request) && e.header_or_method.match_header(header_name))
+        self.0.iter_mut().find(|e| match_headers(e, request) && e.header_or_method.match_header(header_name))
     }
 
     fn find_entry_by_method<'a>(&'a mut self, request: &CacheRequestDetails,
                                 method: Method) -> Option<&'a mut CORSCacheEntry> {
         // we can take the method from CORSRequest itself
         self.cleanup();
-        let BasicCORSCache(ref mut buf) = *self;
-        buf.iter_mut().find(|e| match_headers(e, request) && e.header_or_method.match_method(&method))
+        self.0.iter_mut().find(|e| match_headers(e, request) && e.header_or_method.match_method(&method))
     }
 }
 
@@ -190,8 +188,7 @@ impl CORSCache for BasicCORSCache {
 
     fn insert(&mut self, entry: CORSCacheEntry) {
         self.cleanup();
-        let BasicCORSCache(ref mut buf) = *self;
-        buf.push(entry);
+        self.0.push(entry);
     }
 }
 
diff --git a/components/profile_traits/mem.rs b/components/profile_traits/mem.rs
index 7b377a00385..794874581b9 100644
--- a/components/profile_traits/mem.rs
+++ b/components/profile_traits/mem.rs
@@ -33,8 +33,7 @@ impl ProfilerChan {
     ///
     /// Panics if the send fails.
     pub fn send(&self, msg: ProfilerMsg) {
-        let ProfilerChan(ref c) = *self;
-        c.send(msg).unwrap();
+        self.0.send(msg).unwrap();
     }
 
     /// Runs `f()` with memory profiling.
@@ -118,8 +117,7 @@ impl ReportsChan {
     ///
     /// Panics if the send fails.
     pub fn send(&self, report: Vec<Report>) {
-        let ReportsChan(ref c) = *self;
-        c.send(report).unwrap();
+        self.0.send(report).unwrap();
     }
 }
 
diff --git a/components/profile_traits/time.rs b/components/profile_traits/time.rs
index 8a673d4db0d..203d2953065 100644
--- a/components/profile_traits/time.rs
+++ b/components/profile_traits/time.rs
@@ -20,8 +20,7 @@ pub struct ProfilerChan(pub IpcSender<ProfilerMsg>);
 
 impl ProfilerChan {
     pub fn send(&self, msg: ProfilerMsg) {
-        let ProfilerChan(ref c) = *self;
-        c.send(msg).unwrap();
+        self.0.send(msg).unwrap();
     }
 }
 
diff --git a/components/script/cors.rs b/components/script/cors.rs
index b5ad670a38c..8be1ec9d6d2 100644
--- a/components/script/cors.rs
+++ b/components/script/cors.rs
@@ -394,9 +394,8 @@ impl CORSCache {
                                 header_name: &str)
                                 -> Option<&'a mut CORSCacheEntry> {
         self.cleanup();
-        let CORSCache(ref mut buf) = *self;
         // Credentials are not yet implemented here
-        buf.iter_mut().find(|e| {
+        self.0.iter_mut().find(|e| {
             e.origin.scheme == request.origin.scheme && e.origin.host() == request.origin.host() &&
             e.origin.port() == request.origin.port() && e.url == request.destination &&
             e.header_or_method.match_header(header_name)
@@ -421,9 +420,8 @@ impl CORSCache {
                                 -> Option<&'a mut CORSCacheEntry> {
         // we can take the method from CORSRequest itself
         self.cleanup();
-        let CORSCache(ref mut buf) = *self;
         // Credentials are not yet implemented here
-        buf.iter_mut().find(|e| {
+        self.0.iter_mut().find(|e| {
             e.origin.scheme == request.origin.scheme && e.origin.host() == request.origin.host() &&
             e.origin.port() == request.origin.port() && e.url == request.destination &&
             e.header_or_method.match_method(method)
@@ -445,8 +443,7 @@ impl CORSCache {
 
     fn insert(&mut self, entry: CORSCacheEntry) {
         self.cleanup();
-        let CORSCache(ref mut buf) = *self;
-        buf.push(entry);
+        self.0.push(entry);
     }
 }
 
diff --git a/components/script/dom/bindings/str.rs b/components/script/dom/bindings/str.rs
index 6276c2c19bd..f1de6297ceb 100644
--- a/components/script/dom/bindings/str.rs
+++ b/components/script/dom/bindings/str.rs
@@ -58,8 +58,7 @@ impl Into<Vec<u8>> for ByteString {
 
 impl Hash for ByteString {
     fn hash<H: Hasher>(&self, state: &mut H) {
-        let ByteString(ref vec) = *self;
-        vec.hash(state);
+        self.0.hash(state);
     }
 }
 
diff --git a/components/script/script_thread.rs b/components/script/script_thread.rs
index 9cfc2627786..5876f7d16c9 100644
--- a/components/script/script_thread.rs
+++ b/components/script/script_thread.rs
@@ -321,13 +321,11 @@ pub struct SendableMainThreadScriptChan(pub Sender<CommonScriptMsg>);
 
 impl ScriptChan for SendableMainThreadScriptChan {
     fn send(&self, msg: CommonScriptMsg) -> Result<(), ()> {
-        let SendableMainThreadScriptChan(ref chan) = *self;
-        chan.send(msg).map_err(|_| ())
+        self.0.send(msg).map_err(|_| ())
     }
 
     fn clone(&self) -> Box<ScriptChan + Send> {
-        let SendableMainThreadScriptChan(ref chan) = *self;
-        box SendableMainThreadScriptChan((*chan).clone())
+        box SendableMainThreadScriptChan((&self.0).clone())
     }
 }
 
@@ -345,13 +343,11 @@ pub struct MainThreadScriptChan(pub Sender<MainThreadScriptMsg>);
 
 impl ScriptChan for MainThreadScriptChan {
     fn send(&self, msg: CommonScriptMsg) -> Result<(), ()> {
-        let MainThreadScriptChan(ref chan) = *self;
-        chan.send(MainThreadScriptMsg::Common(msg)).map_err(|_| ())
+        self.0.send(MainThreadScriptMsg::Common(msg)).map_err(|_| ())
     }
 
     fn clone(&self) -> Box<ScriptChan + Send> {
-        let MainThreadScriptChan(ref chan) = *self;
-        box MainThreadScriptChan((*chan).clone())
+        box MainThreadScriptChan((&self.0).clone())
     }
 }
 
diff --git a/components/script/task_source/dom_manipulation.rs b/components/script/task_source/dom_manipulation.rs
index d60ce7de93d..9676ade6ded 100644
--- a/components/script/task_source/dom_manipulation.rs
+++ b/components/script/task_source/dom_manipulation.rs
@@ -16,13 +16,11 @@ pub struct DOMManipulationTaskSource(pub Sender<MainThreadScriptMsg>);
 
 impl TaskSource<DOMManipulationTask> for DOMManipulationTaskSource {
     fn queue(&self, msg: DOMManipulationTask) -> Result<(), ()> {
-        let DOMManipulationTaskSource(ref chan) = *self;
-        chan.send(MainThreadScriptMsg::DOMManipulation(msg)).map_err(|_| ())
+        self.0.send(MainThreadScriptMsg::DOMManipulation(msg)).map_err(|_| ())
     }
 
     fn clone(&self) -> Box<TaskSource<DOMManipulationTask> + Send> {
-        let DOMManipulationTaskSource(ref chan) = *self;
-        box DOMManipulationTaskSource((*chan).clone())
+        box DOMManipulationTaskSource((&self.0).clone())
     }
 }
 
diff --git a/components/script/task_source/file_reading.rs b/components/script/task_source/file_reading.rs
index e4afad34b4b..30e9530a76d 100644
--- a/components/script/task_source/file_reading.rs
+++ b/components/script/task_source/file_reading.rs
@@ -10,12 +10,10 @@ pub struct FileReadingTaskSource(pub Sender<MainThreadScriptMsg>);
 
 impl ScriptChan for FileReadingTaskSource {
     fn send(&self, msg: CommonScriptMsg) -> Result<(), ()> {
-        let FileReadingTaskSource(ref chan) = *self;
-        chan.send(MainThreadScriptMsg::Common(msg)).map_err(|_| ())
+        self.0.send(MainThreadScriptMsg::Common(msg)).map_err(|_| ())
     }
 
     fn clone(&self) -> Box<ScriptChan + Send> {
-        let FileReadingTaskSource(ref chan) = *self;
-        box FileReadingTaskSource((*chan).clone())
+        box FileReadingTaskSource((&self.0).clone())
     }
 }
diff --git a/components/script/task_source/history_traversal.rs b/components/script/task_source/history_traversal.rs
index 0916c121345..c2d276e6eec 100644
--- a/components/script/task_source/history_traversal.rs
+++ b/components/script/task_source/history_traversal.rs
@@ -10,12 +10,10 @@ pub struct HistoryTraversalTaskSource(pub Sender<MainThreadScriptMsg>);
 
 impl ScriptChan for HistoryTraversalTaskSource {
     fn send(&self, msg: CommonScriptMsg) -> Result<(), ()> {
-        let HistoryTraversalTaskSource(ref chan) = *self;
-        chan.send(MainThreadScriptMsg::Common(msg)).map_err(|_| ())
+        self.0.send(MainThreadScriptMsg::Common(msg)).map_err(|_| ())
     }
 
     fn clone(&self) -> Box<ScriptChan + Send> {
-        let HistoryTraversalTaskSource(ref chan) = *self;
-        box HistoryTraversalTaskSource((*chan).clone())
+        box HistoryTraversalTaskSource((&self.0).clone())
     }
 }
diff --git a/components/script/task_source/networking.rs b/components/script/task_source/networking.rs
index 8ebeecdb965..83160468395 100644
--- a/components/script/task_source/networking.rs
+++ b/components/script/task_source/networking.rs
@@ -10,12 +10,10 @@ pub struct NetworkingTaskSource(pub Sender<MainThreadScriptMsg>);
 
 impl ScriptChan for NetworkingTaskSource {
     fn send(&self, msg: CommonScriptMsg) -> Result<(), ()> {
-        let NetworkingTaskSource(ref chan) = *self;
-        chan.send(MainThreadScriptMsg::Common(msg)).map_err(|_| ())
+        self.0.send(MainThreadScriptMsg::Common(msg)).map_err(|_| ())
     }
 
     fn clone(&self) -> Box<ScriptChan + Send> {
-        let NetworkingTaskSource(ref chan) = *self;
-        box NetworkingTaskSource((*chan).clone())
+        box NetworkingTaskSource((&self.0).clone())
     }
 }
diff --git a/components/script/task_source/user_interaction.rs b/components/script/task_source/user_interaction.rs
index 7912eac720d..254b0d008d1 100644
--- a/components/script/task_source/user_interaction.rs
+++ b/components/script/task_source/user_interaction.rs
@@ -10,12 +10,10 @@ pub struct UserInteractionTaskSource(pub Sender<MainThreadScriptMsg>);
 
 impl ScriptChan for UserInteractionTaskSource {
     fn send(&self, msg: CommonScriptMsg) -> Result<(), ()> {
-        let UserInteractionTaskSource(ref chan) = *self;
-        chan.send(MainThreadScriptMsg::Common(msg)).map_err(|_| ())
+        self.0.send(MainThreadScriptMsg::Common(msg)).map_err(|_| ())
     }
 
     fn clone(&self) -> Box<ScriptChan + Send> {
-        let UserInteractionTaskSource(ref chan) = *self;
-        box UserInteractionTaskSource((*chan).clone())
+        box UserInteractionTaskSource((&self.0).clone())
     }
 }
diff --git a/components/style/dom.rs b/components/style/dom.rs
index 861cec599a2..7a332806c09 100644
--- a/components/style/dom.rs
+++ b/components/style/dom.rs
@@ -37,8 +37,7 @@ impl OpaqueNode {
     /// Returns the address of this node, for debugging purposes.
     #[inline]
     pub fn id(&self) -> usize {
-        let OpaqueNode(pointer) = *self;
-        pointer
+        self.0
     }
 }
 
diff --git a/components/style/values.rs b/components/style/values.rs
index 69cd83309fc..80a9a86b797 100644
--- a/components/style/values.rs
+++ b/components/style/values.rs
@@ -1077,10 +1077,9 @@ pub mod specified {
 
     impl ToCss for BorderRadiusSize {
         fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
-            let BorderRadiusSize(size) = *self;
-            try!(size.width.to_css(dest));
+            try!(self.0.width.to_css(dest));
             try!(dest.write_str(" "));
-            size.height.to_css(dest)
+            self.0.height.to_css(dest)
         }
     }
 
@@ -1133,8 +1132,7 @@ pub mod specified {
 
     impl ToCss for Angle {
         fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
-            let Angle(value) = *self;
-            write!(dest, "{}rad", value)
+            write!(dest, "{}rad", self.0)
         }
     }
 
@@ -1642,19 +1640,17 @@ pub mod computed {
 
         #[inline]
         fn to_computed_value<Cx: TContext>(&self, context: &Cx) -> BorderRadiusSize {
-            let specified::BorderRadiusSize(s) = *self;
-            let w = s.width.to_computed_value(context);
-            let h = s.height.to_computed_value(context);
+            let w = self.0.width.to_computed_value(context);
+            let h = self.0.height.to_computed_value(context);
             BorderRadiusSize(Size2D::new(w, h))
         }
     }
 
     impl ::cssparser::ToCss for BorderRadiusSize {
         fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
-            let BorderRadiusSize(s) = *self;
-            try!(s.width.to_css(dest));
+            try!(self.0.width.to_css(dest));
             try!(dest.write_str("/"));
-            s.height.to_css(dest)
+            self.0.height.to_css(dest)
         }
     }