Fix more clippy (#32740)

components/devtools/actors/browsing_context.rs

@@ -157,14 +157,12 @@ impl Actor for BrowsingContextActor {
     fn handle_message(
         &self,
         _registry: &ActorRegistry,
-        msg_type: &str,
+        _msg_type: &str,
         _msg: &Map<String, Value>,
         _stream: &mut TcpStream,
         _id: StreamId,
     ) -> Result<ActorMessageStatus, ()> {
-        Ok(match msg_type {
-            _ => ActorMessageStatus::Ignored,
-        })
+        Ok(ActorMessageStatus::Ignored)
     }
 
     fn cleanup(&self, id: StreamId) {

components/devtools/actors/watcher.rs

@@ -193,11 +193,8 @@ impl Actor for WatcherActor {
                     let target =
                         registry.find::<BrowsingContextActor>(&self.browsing_context_actor);
 
-                    match resource {
-                        "document-event" => {
-                            target.document_event(stream);
-                        },
-                        _ => {},
+                    if resource == "document-event" {
+                        target.document_event(stream);
                     }
 
                     let _ = stream.write_json_packet(&EmptyReplyMsg { from: self.name() });

components/layout/fragment.rs

@@ -1505,7 +1505,7 @@ impl Fragment {
         if let Some(ref inline_fragment_context) = self.inline_context {
             for node in &inline_fragment_context.nodes {
                 if node.style.get_box().position == Position::Relative {
-                    rel_pos = rel_pos + from_style(&*node.style, containing_block_size);
+                    rel_pos = rel_pos + from_style(&node.style, containing_block_size);
                 }
             }
         }

components/layout_2020/flow/inline/mod.rs

@@ -1711,14 +1711,14 @@ impl InlineFormattingContext {
     }
 
     fn next_character_prevents_soft_wrap_opportunity(&self, index: usize) -> bool {
-        let Some(character) = self.text_content[index..].chars().skip(1).next() else {
+        let Some(character) = self.text_content[index..].chars().nth(1) else {
             return false;
         };
         char_prevents_soft_wrap_opportunity_when_before_or_after_atomic(character)
     }
 
     fn previous_character_prevents_soft_wrap_opportunity(&self, index: usize) -> bool {
-        let Some(character) = self.text_content[0..index].chars().rev().next() else {
+        let Some(character) = self.text_content[0..index].chars().next_back() else {
             return false;
         };
         char_prevents_soft_wrap_opportunity_when_before_or_after_atomic(character)

components/layout_thread/lib.rs

@@ -306,9 +306,7 @@ impl Layout for LayoutThread {
     }
 
     fn query_content_box(&self, node: OpaqueNode) -> Option<UntypedRect<Au>> {
-        let Some(mut root_flow) = self.root_flow_for_query() else {
-            return None;
-        };
+        let mut root_flow = self.root_flow_for_query()?;
 
         let root_flow_ref = FlowRef::deref_mut(&mut root_flow);
         process_content_box_request(node, root_flow_ref)
@@ -1010,7 +1008,7 @@ impl LayoutThread {
             for stylesheet in &ua_stylesheets.user_or_user_agent_stylesheets {
                 self.stylist
                     .append_stylesheet(stylesheet.clone(), &ua_or_user_guard);
-                self.load_all_web_fonts_from_stylesheet_with_guard(&stylesheet, &ua_or_user_guard);
+                self.load_all_web_fonts_from_stylesheet_with_guard(stylesheet, &ua_or_user_guard);
             }
 
             if self.stylist.quirks_mode() != QuirksMode::NoQuirks {

components/script/dom/bindings/trace.rs

@@ -178,10 +178,10 @@ where
     }
 
     #[inline]
-    pub fn get<Q: ?Sized>(&self, k: &Q) -> Option<&V>
+    pub fn get<Q>(&self, k: &Q) -> Option<&V>
     where
         K: std::borrow::Borrow<Q>,
-        Q: Hash + Eq,
+        Q: Hash + Eq + ?Sized,
     {
         self.0.get(k)
     }

components/script/dom/document.rs

@@ -2987,9 +2987,10 @@ impl Document {
     /// <https://drafts.csswg.org/resize-observer/#deliver-resize-loop-error-notification>
     pub(crate) fn deliver_resize_loop_error_notification(&self) {
         let global_scope = self.window.upcast::<GlobalScope>();
-        let mut error_info: ErrorInfo = Default::default();
-        error_info.message =
-            "ResizeObserver loop completed with undelivered notifications.".to_string();
+        let error_info: ErrorInfo = crate::dom::bindings::error::ErrorInfo {
+            message: "ResizeObserver loop completed with undelivered notifications.".to_string(),
+            ..Default::default()
+        };
         global_scope.report_an_error(error_info, HandleValue::null());
     }
 }

components/script/dom/globalscope.rs

@@ -3107,7 +3107,7 @@ impl GlobalScope {
             DeviceLostReason::Unknown => GPUDeviceLostReason::Unknown,
             DeviceLostReason::Destroyed => GPUDeviceLostReason::Destroyed,
         };
-        let _ac = enter_realm(&*self);
+        let _ac = enter_realm(self);
         if let Some(device) = self
             .gpu_devices
             .borrow_mut()

components/script/dom/htmlmediaelement.rs

@@ -780,7 +780,7 @@ impl HTMLMediaElement {
             // Step 9.obj.
             Mode::Object => {
                 // Step 9.obj.1.
-                *self.current_src.borrow_mut() = "".to_owned();
+                "".clone_into(&mut self.current_src.borrow_mut());
 
                 // Step 9.obj.2.
                 // FIXME(nox): The rest of the steps should be ran in parallel.

components/script/dom/htmlmetaelement.rs

@@ -88,11 +88,8 @@ impl HTMLMetaElement {
         // https://html.spec.whatwg.org/multipage/#attr-meta-http-equiv
         } else if !self.HttpEquiv().is_empty() {
             // TODO: Implement additional http-equiv candidates
-            match self.HttpEquiv().to_ascii_lowercase().as_str() {
-                "refresh" => {
-                    self.declarative_refresh();
-                },
-                _ => {},
+            if self.HttpEquiv().to_ascii_lowercase().as_str() == "refresh" {
+                self.declarative_refresh();
             }
         }
     }

components/script/dom/request.rs

@@ -529,7 +529,7 @@ impl RequestMethods for Request {
     // https://fetch.spec.whatwg.org/#dom-request-url
     fn Url(&self) -> USVString {
         let r = self.request.borrow();
-        USVString(r.url_list.get(0).map_or("", |u| u.as_str()).into())
+        USVString(r.url_list.first().map_or("", |u| u.as_str()).into())
     }
 
     // https://fetch.spec.whatwg.org/#dom-request-headers

components/script/dom/resizeobserver.rs

@@ -118,11 +118,11 @@ impl ResizeObserver {
             let height = box_size.height().to_f64_px();
             let size_impl = ResizeObserverSizeImpl::new(width, height);
             let window = window_from_node(&**target);
-            let observer_size = ResizeObserverSize::new(&*window, size_impl);
+            let observer_size = ResizeObserverSize::new(&window, size_impl);
 
             // Note: content rect is built from content box size.
             let content_rect = DOMRectReadOnly::new(
-                &*window.upcast(),
+                window.upcast(),
                 None,
                 box_size.origin.x.to_f64_px(),
                 box_size.origin.y.to_f64_px(),
@@ -130,9 +130,9 @@ impl ResizeObserver {
                 height,
             );
             let entry = ResizeObserverEntry::new(
-                &*window,
+                &window,
                 target,
-                &*content_rect,
+                &content_rect,
                 &[],
                 &[&*observer_size],
                 &[],

components/script/dom/rtcpeerconnection.rs

@@ -206,10 +206,10 @@ impl RTCPeerConnection {
         let signaller = this.make_signaller();
         *this.controller.borrow_mut() = Some(ServoMedia::get().unwrap().create_webrtc(signaller));
         if let Some(ref servers) = config.iceServers {
-            if let Some(server) = servers.get(0) {
+            if let Some(server) = servers.first() {
                 let server = match server.urls {
                     StringOrStringSequence::String(ref s) => Some(s.clone()),
-                    StringOrStringSequence::StringSequence(ref s) => s.get(0).cloned(),
+                    StringOrStringSequence::StringSequence(ref s) => s.first().cloned(),
                 };
                 if let Some(server) = server {
                     let policy = match config.bundlePolicy {

components/script/dom/servoparser/html.rs

@@ -134,7 +134,7 @@ fn start_element<S: Serializer>(node: &Element, serializer: &mut S) -> io::Resul
         })
         .collect::<Vec<_>>();
     let attr_refs = attrs.iter().map(|(qname, value)| {
-        let ar: AttrRef = (&qname, &**value);
+        let ar: AttrRef = (qname, &**value);
         ar
     });
     serializer.start_elem(name, attr_refs)?;

components/script/dom/testbinding.rs

@@ -622,8 +622,8 @@ impl TestBindingMethods for TestBinding {
         arg.type_.as_ref().map(|s| s == "success").unwrap_or(false) &&
             arg.nonRequiredNullable.is_none() &&
             arg.nonRequiredNullable2 == Some(None) &&
-            arg.noCallbackImport == None &&
-            arg.noCallbackImport2 == None
+            arg.noCallbackImport.is_none() &&
+            arg.noCallbackImport2.is_none()
     }
 
     fn PassBoolean(&self, _: bool) {}

components/script/dom/webgl2renderingcontext.rs

@@ -3134,16 +3134,14 @@ impl WebGL2RenderingContextMethods for WebGL2RenderingContext {
 
         let buff = IpcSharedMemory::from_bytes(unsafe { &src_data.as_slice()[src_byte_offset..] });
 
-        let expected_byte_length = match {
-            self.base.validate_tex_image_2d_data(
-                width,
-                height,
-                format,
-                data_type,
-                unpacking_alignment,
-                Some(&*src_data),
-            )
-        } {
+        let expected_byte_length = match self.base.validate_tex_image_2d_data(
+            width,
+            height,
+            format,
+            data_type,
+            unpacking_alignment,
+            Some(&*src_data),
+        ) {
             Ok(byte_length) => byte_length,
             Err(()) => return Ok(()),
         };
@@ -3968,7 +3966,7 @@ impl WebGL2RenderingContextMethods for WebGL2RenderingContext {
             buffer.map(|b| b.id()),
         ));
 
-        for slot in &[&generic_slot, &indexed_binding.buffer] {
+        for slot in &[generic_slot, &indexed_binding.buffer] {
             if let Some(old) = slot.get() {
                 old.decrement_attached_counter(Operation::Infallible);
             }
@@ -4046,7 +4044,7 @@ impl WebGL2RenderingContextMethods for WebGL2RenderingContext {
             size,
         ));
 
-        for slot in &[&generic_slot, &indexed_binding.buffer] {
+        for slot in &[generic_slot, &indexed_binding.buffer] {
             if let Some(old) = slot.get() {
                 old.decrement_attached_counter(Operation::Infallible);
             }

components/script/dom/webgl_extensions/extensions.rs

@@ -279,11 +279,11 @@ impl WebGLExtensions {
     }
 
     pub fn is_tex_type_enabled(&self, data_type: GLenum) -> bool {
-        self.features
+        !self
+            .features
             .borrow()
             .disabled_tex_types
-            .get(&data_type)
-            .is_none()
+            .contains(&data_type)
     }
 
     pub fn add_effective_tex_internal_format(
@@ -321,11 +321,11 @@ impl WebGLExtensions {
     }
 
     pub fn is_filterable(&self, text_data_type: u32) -> bool {
-        self.features
+        !self
+            .features
             .borrow()
             .not_filterable_tex_types
-            .get(&text_data_type)
-            .is_none()
+            .contains(&text_data_type)
     }
 
     pub fn enable_hint_target(&self, name: GLenum) {

components/script/dom/webglrenderingcontext.rs

@@ -4292,16 +4292,14 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
 
         let unpacking_alignment = self.texture_unpacking_alignment.get();
 
-        let expected_byte_length = match {
-            self.validate_tex_image_2d_data(
-                width,
-                height,
-                format,
-                data_type,
-                unpacking_alignment,
-                pixels.as_ref(),
-            )
-        } {
+        let expected_byte_length = match self.validate_tex_image_2d_data(
+            width,
+            height,
+            format,
+            data_type,
+            unpacking_alignment,
+            pixels.as_ref(),
+        ) {
             Ok(byte_length) => byte_length,
             Err(()) => return Ok(()),
         };
@@ -4479,16 +4477,14 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
 
         let unpacking_alignment = self.texture_unpacking_alignment.get();
 
-        let expected_byte_length = match {
-            self.validate_tex_image_2d_data(
-                width,
-                height,
-                format,
-                data_type,
-                unpacking_alignment,
-                pixels.as_ref(),
-            )
-        } {
+        let expected_byte_length = match self.validate_tex_image_2d_data(
+            width,
+            height,
+            format,
+            data_type,
+            unpacking_alignment,
+            pixels.as_ref(),
+        ) {
             Ok(byte_length) => byte_length,
             Err(()) => return Ok(()),
         };

components/script/dom/xmlhttprequest.rs

@@ -1053,7 +1053,7 @@ impl XMLHttpRequest {
             },
         };
 
-        *self.response_url.borrow_mut() = metadata.final_url[..Position::AfterQuery].to_owned();
+        metadata.final_url[..Position::AfterQuery].clone_into(&mut self.response_url.borrow_mut());
 
         // XXXManishearth Clear cache entries in case of a network error
         self.process_partial_response(XHRProgress::HeadersReceived(

components/script/dom/xrsession.rs

@@ -438,10 +438,7 @@ impl XRSession {
         self.outside_raf.set(false);
         let len = self.current_raf_callback_list.borrow().len();
         for i in 0..len {
-            let callback = self.current_raf_callback_list.borrow()[i]
-                .1
-                .as_ref()
-                .map(Rc::clone);
+            let callback = self.current_raf_callback_list.borrow()[i].1.clone();
             if let Some(callback) = callback {
                 let _ = callback.Call__(time, &frame, ExceptionHandling::Report);
             }

components/script/lib.rs

@@ -9,7 +9,7 @@
 // crate. Issue a warning if `crown` is not being used to compile, but not when
 // building rustdoc or running clippy.
 #![register_tool(crown)]
-#![cfg_attr(any(doc, clippy, feature = "cargo-clippy"), allow(unknown_lints))]
+#![cfg_attr(any(doc, clippy), allow(unknown_lints))]
 #![deny(crown_is_not_used)]
 
 // These are used a lot so let's keep them for now

components/script/script_module.rs

@@ -578,7 +578,7 @@ impl ModuleTree {
 
                 let url = ModuleTree::resolve_module_specifier(
                     *cx,
-                    &base_url,
+                    base_url,
                     specifier.handle().into_handle(),
                 );
 
@@ -815,7 +815,7 @@ impl ModuleTree {
 
                 if incomplete_count_before_remove > 0 {
                     parent_tree.remove_incomplete_fetch_url(&self.url);
-                    parent_tree.advance_finished_and_link(&global);
+                    parent_tree.advance_finished_and_link(global);
                 }
             }
         }
@@ -831,7 +831,7 @@ impl ModuleTree {
             (None, None) => {
                 let module_record = self.get_record().borrow();
                 if let Some(record) = &*module_record {
-                    let instantiated = self.instantiate_module_tree(&global, record.handle());
+                    let instantiated = self.instantiate_module_tree(global, record.handle());
 
                     if let Err(exception) = instantiated {
                         self.set_rethrow_error(exception);

components/script/script_runtime.rs

@@ -748,8 +748,8 @@ pub unsafe fn get_reports(cx: *mut RawJSContext, path_seg: String) -> Vec<Report
     reports
 }
 
-thread_local!(static GC_CYCLE_START: Cell<Option<Instant>> = Cell::new(None));
-thread_local!(static GC_SLICE_START: Cell<Option<Instant>> = Cell::new(None));
+thread_local!(static GC_CYCLE_START: Cell<Option<Instant>> = const { Cell::new(None) });
+thread_local!(static GC_SLICE_START: Cell<Option<Instant>> = const { Cell::new(None) });
 
 #[allow(unsafe_code)]
 unsafe extern "C" fn gc_slice_callback(
@@ -803,7 +803,7 @@ unsafe extern "C" fn debug_gc_callback(
 }
 
 thread_local!(
-    static THREAD_ACTIVE: Cell<bool> = Cell::new(true);
+    static THREAD_ACTIVE: Cell<bool> = const { Cell::new(true) };
 );
 
 pub(crate) fn runtime_is_alive() -> bool {

components/script/script_thread.rs

@@ -165,7 +165,7 @@ use crate::{devtools, webdriver_handlers};
 
 pub type ImageCacheMsg = (PipelineId, PendingImageResponse);
 
-thread_local!(static SCRIPT_THREAD_ROOT: Cell<Option<*const ScriptThread>> = Cell::new(None));
+thread_local!(static SCRIPT_THREAD_ROOT: Cell<Option<*const ScriptThread>> = const { Cell::new(None) });
 
 pub unsafe fn trace_thread(tr: *mut JSTracer) {
     SCRIPT_THREAD_ROOT.with(|root| {

components/script/textinput.rs

@@ -982,7 +982,7 @@ impl<T: ClipboardProvider> TextInput<T> {
 
     /// Whether the content is empty.
     pub fn is_empty(&self) -> bool {
-        self.lines.len() <= 1 && self.lines.get(0).map_or(true, |line| line.is_empty())
+        self.lines.len() <= 1 && self.lines.first().map_or(true, |line| line.is_empty())
     }
 
     /// The length of the content in bytes.