style: Reformat recent changes.

40 files changed, 572 insertions, 213 deletions

diff --git a/components/selectors/parser.rs b/components/selectors/parser.rs
index 765c0d842c1..0515eaca193 100644
--- a/components/selectors/parser.rs
+++ b/components/selectors/parser.rs
@@ -223,7 +223,9 @@ pub trait Parser<'i> {
 
 #[derive(Clone, Debug, Eq, PartialEq, ToShmem)]
 #[shmem(no_bounds)]
-pub struct SelectorList<Impl: SelectorImpl>(#[shmem(field_bound)] pub SmallVec<[Selector<Impl>; 1]>);
+pub struct SelectorList<Impl: SelectorImpl>(
+    #[shmem(field_bound)] pub SmallVec<[Selector<Impl>; 1]>,
+);
 
 impl<Impl: SelectorImpl> SelectorList<Impl> {
     /// Parse a comma-separated list of Selectors.
@@ -510,7 +512,9 @@ pub fn namespace_empty_string<Impl: SelectorImpl>() -> Impl::NamespaceUrl {
 /// handle it in to_css to make it invisible to serialization.
 #[derive(Clone, Eq, PartialEq, ToShmem)]
 #[shmem(no_bounds)]
-pub struct Selector<Impl: SelectorImpl>(#[shmem(field_bound)] ThinArc<SpecificityAndFlags, Component<Impl>>);
+pub struct Selector<Impl: SelectorImpl>(
+    #[shmem(field_bound)] ThinArc<SpecificityAndFlags, Component<Impl>>,
+);
 
 impl<Impl: SelectorImpl> Selector<Impl> {
     #[inline]
@@ -834,7 +838,10 @@ pub enum Component<Impl: SelectorImpl> {
     ExplicitAnyNamespace,
     ExplicitNoNamespace,
     DefaultNamespace(#[shmem(field_bound)] Impl::NamespaceUrl),
-    Namespace(#[shmem(field_bound)] Impl::NamespacePrefix, #[shmem(field_bound)] Impl::NamespaceUrl),
+    Namespace(
+        #[shmem(field_bound)] Impl::NamespacePrefix,
+        #[shmem(field_bound)] Impl::NamespaceUrl,
+    ),
 
     ExplicitUniversalType,
     LocalName(LocalName<Impl>),
diff --git a/components/style/error_reporting.rs b/components/style/error_reporting.rs
index 9d54f62e318..04677c26041 100644
--- a/components/style/error_reporting.rs
+++ b/components/style/error_reporting.rs
@@ -6,18 +6,22 @@
 
 #![deny(missing_docs)]
 
+use crate::selector_parser::SelectorImpl;
 use crate::stylesheets::UrlExtraData;
 use cssparser::{BasicParseErrorKind, ParseErrorKind, SourceLocation, Token};
+use selectors::SelectorList;
 use std::fmt;
 use style_traits::ParseError;
-use crate::selector_parser::{SelectorImpl};
-use selectors::SelectorList;
 
 /// Errors that can be encountered while parsing CSS.
 #[derive(Debug)]
 pub enum ContextualParseError<'a> {
     /// A property declaration was not recognized.
-    UnsupportedPropertyDeclaration(&'a str, ParseError<'a>, Option<&'a SelectorList<SelectorImpl>>),
+    UnsupportedPropertyDeclaration(
+        &'a str,
+        ParseError<'a>,
+        Option<&'a SelectorList<SelectorImpl>>,
+    ),
     /// A font face descriptor was not recognized.
     UnsupportedFontFaceDescriptor(&'a str, ParseError<'a>),
     /// A font feature values descriptor was not recognized.
diff --git a/components/style/font_metrics.rs b/components/style/font_metrics.rs
index ab2468e5439..a45ebc297d9 100644
--- a/components/style/font_metrics.rs
+++ b/components/style/font_metrics.rs
@@ -43,7 +43,11 @@ pub trait FontMetricsProvider {
     }
 
     /// Get default size of a given language and generic family.
-    fn get_size(&self, font_name: &Atom, font_family: crate::values::computed::font::GenericFontFamily) -> Au;
+    fn get_size(
+        &self,
+        font_name: &Atom,
+        font_family: crate::values::computed::font::GenericFontFamily,
+    ) -> Au;
 
     /// Construct from a shared style context
     fn create_from(context: &SharedStyleContext) -> Self
diff --git a/components/style/gecko/wrapper.rs b/components/style/gecko/wrapper.rs
index a1f06a679d9..0fa354fb139 100644
--- a/components/style/gecko/wrapper.rs
+++ b/components/style/gecko/wrapper.rs
@@ -1108,9 +1108,9 @@ impl structs::FontSizePrefs {
             GenericFontFamily::Monospace => self.mDefaultMonospaceSize,
             GenericFontFamily::Cursive => self.mDefaultCursiveSize,
             GenericFontFamily::Fantasy => self.mDefaultFantasySize,
-            GenericFontFamily::MozEmoji => {
-                unreachable!("Should never get here, since this doesn't (yet) appear on font family")
-            },
+            GenericFontFamily::MozEmoji => unreachable!(
+                "Should never get here, since this doesn't (yet) appear on font family"
+            ),
         })
     }
 }
diff --git a/components/style/gecko_string_cache/mod.rs b/components/style/gecko_string_cache/mod.rs
index f4c875cb7ad..d71d192166a 100644
--- a/components/style/gecko_string_cache/mod.rs
+++ b/components/style/gecko_string_cache/mod.rs
@@ -126,7 +126,11 @@ impl Borrow<WeakAtom> for Atom {
 
 impl ToShmem for Atom {
     fn to_shmem(&self, _builder: &mut SharedMemoryBuilder) -> ManuallyDrop<Self> {
-        assert!(self.is_static(), "ToShmem failed for Atom: must be a static atom: {}", self);
+        assert!(
+            self.is_static(),
+            "ToShmem failed for Atom: must be a static atom: {}",
+            self
+        );
 
         ManuallyDrop::new(Atom(self.0))
     }
diff --git a/components/style/stylesheets/rule_parser.rs b/components/style/stylesheets/rule_parser.rs
index 33190c578b4..a3ec24174ed 100644
--- a/components/style/stylesheets/rule_parser.rs
+++ b/components/style/stylesheets/rule_parser.rs
@@ -9,7 +9,7 @@ use crate::error_reporting::ContextualParseError;
 use crate::font_face::parse_font_face_block;
 use crate::media_queries::MediaList;
 use crate::parser::{Parse, ParserContext};
-use crate::properties::{parse_property_declaration_list};
+use crate::properties::parse_property_declaration_list;
 use crate::selector_parser::{SelectorImpl, SelectorParser};
 use crate::shared_lock::{Locked, SharedRwLock};
 use crate::str::starts_with_ignore_ascii_case;
diff --git a/components/style/values/computed/angle.rs b/components/style/values/computed/angle.rs
index 1ce1a7fd34d..cdbc0006941 100644
--- a/components/style/values/computed/angle.rs
+++ b/components/style/values/computed/angle.rs
@@ -14,7 +14,18 @@ use style_traits::{CssWriter, ToCss};
 
 /// A computed angle in degrees.
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
-#[derive(Add, Animate, Clone, Copy, Debug, MallocSizeOf, PartialEq, PartialOrd, ToAnimatedZero, ToResolvedValue)]
+#[derive(
+    Add,
+    Animate,
+    Clone,
+    Copy,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    PartialOrd,
+    ToAnimatedZero,
+    ToResolvedValue,
+)]
 pub struct Angle(CSSFloat);
 
 impl ToCss for Angle {
diff --git a/components/style/values/computed/box.rs b/components/style/values/computed/box.rs
index c7a3ba7e36e..4cd16b1cd9e 100644
--- a/components/style/values/computed/box.rs
+++ b/components/style/values/computed/box.rs
@@ -15,7 +15,9 @@ pub use crate::values::specified::box_::{AnimationName, Appearance, BreakBetween
 pub use crate::values::specified::box_::{Clear as SpecifiedClear, Float as SpecifiedFloat};
 pub use crate::values::specified::box_::{Contain, Display, Overflow};
 pub use crate::values::specified::box_::{OverflowAnchor, OverflowClipBox, OverscrollBehavior};
-pub use crate::values::specified::box_::{ScrollSnapAlign, ScrollSnapAxis, ScrollSnapStrictness, ScrollSnapType};
+pub use crate::values::specified::box_::{
+    ScrollSnapAlign, ScrollSnapAxis, ScrollSnapStrictness, ScrollSnapType,
+};
 pub use crate::values::specified::box_::{TouchAction, TransitionProperty, WillChange};
 
 /// A computed value for the `vertical-align` property.
diff --git a/components/style/values/computed/font.rs b/components/style/values/computed/font.rs
index 152bbcc0d4b..001b8444a30 100644
--- a/components/style/values/computed/font.rs
+++ b/components/style/values/computed/font.rs
@@ -40,7 +40,9 @@ pub use crate::values::specified::font::{XLang, XTextZoom};
 /// https://drafts.csswg.org/css-fonts-4/#propdef-font-weight
 ///
 /// This is effectively just a `Number`.
-#[derive(Clone, ComputeSquaredDistance, Copy, Debug, MallocSizeOf, PartialEq, ToCss, ToResolvedValue)]
+#[derive(
+    Clone, ComputeSquaredDistance, Copy, Debug, MallocSizeOf, PartialEq, ToCss, ToResolvedValue,
+)]
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
 pub struct FontWeight(pub Number);
 
@@ -190,7 +192,9 @@ impl FontFamily {
     /// Get default font family as `serif` which is a generic font-family
     pub fn serif() -> Self {
         FontFamily {
-            families: FontFamilyList::new(Box::new([SingleFontFamily::Generic(GenericFontFamily::Serif)])),
+            families: FontFamilyList::new(Box::new([SingleFontFamily::Generic(
+                GenericFontFamily::Serif,
+            )])),
             is_system_font: false,
         }
     }
@@ -427,8 +431,10 @@ impl PartialEq for FontFamilyList {
             return false;
         }
         for (a, b) in self_list.mNames.iter().zip(other_list.mNames.iter()) {
-            if a.mSyntax != b.mSyntax || a.mName.mRawPtr != b.mName.mRawPtr ||
-                a.mGeneric != b.mGeneric {
+            if a.mSyntax != b.mSyntax ||
+                a.mName.mRawPtr != b.mName.mRawPtr ||
+                a.mGeneric != b.mGeneric
+            {
                 return false;
             }
         }
@@ -459,19 +465,15 @@ impl FontFamilyList {
 
         for family in families.iter() {
             match *family {
-                SingleFontFamily::FamilyName(ref f) => {
-                    unsafe {
-                        bindings::Gecko_nsTArray_FontFamilyName_AppendNamed(
-                            names,
-                            f.name.as_ptr(),
-                            f.syntax,
-                        );
-                    }
+                SingleFontFamily::FamilyName(ref f) => unsafe {
+                    bindings::Gecko_nsTArray_FontFamilyName_AppendNamed(
+                        names,
+                        f.name.as_ptr(),
+                        f.syntax,
+                    );
                 },
-                SingleFontFamily::Generic(family) => {
-                    unsafe {
-                        bindings::Gecko_nsTArray_FontFamilyName_AppendGeneric(names, family);
-                    }
+                SingleFontFamily::Generic(family) => unsafe {
+                    bindings::Gecko_nsTArray_FontFamilyName_AppendGeneric(names, family);
                 },
             }
         }
@@ -547,7 +549,17 @@ impl<'a> Iterator for FontFamilyNameIter<'a> {
 }
 
 /// Preserve the readability of text when font fallback occurs
-#[derive(Animate, Clone, ComputeSquaredDistance, Copy, Debug, MallocSizeOf, PartialEq, ToCss, ToResolvedValue)]
+#[derive(
+    Animate,
+    Clone,
+    ComputeSquaredDistance,
+    Copy,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    ToCss,
+    ToResolvedValue,
+)]
 pub enum FontSizeAdjust {
     #[animation(error)]
     /// None variant
@@ -831,7 +843,9 @@ impl ToCss for FontStyle {
 /// A value for the font-stretch property per:
 ///
 /// https://drafts.csswg.org/css-fonts-4/#propdef-font-stretch
-#[derive(Clone, ComputeSquaredDistance, Copy, Debug, MallocSizeOf, PartialEq, ToCss, ToResolvedValue)]
+#[derive(
+    Clone, ComputeSquaredDistance, Copy, Debug, MallocSizeOf, PartialEq, ToCss, ToResolvedValue,
+)]
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
 pub struct FontStretch(pub NonNegativePercentage);
 
diff --git a/components/style/values/computed/length.rs b/components/style/values/computed/length.rs
index 1e1fedd41bf..f43befbbaf0 100644
--- a/components/style/values/computed/length.rs
+++ b/components/style/values/computed/length.rs
@@ -10,8 +10,7 @@ use crate::values::computed::NonNegativeNumber;
 use crate::values::distance::{ComputeSquaredDistance, SquaredDistance};
 use crate::values::generics::length as generics;
 use crate::values::generics::length::{
-    GenericLengthPercentageOrNormal, GenericLengthOrNumber,
-    GenericMaxSize, GenericSize,
+    GenericLengthOrNumber, GenericLengthPercentageOrNormal, GenericMaxSize, GenericSize,
 };
 use crate::values::generics::NonNegative;
 use crate::values::specified::length::ViewportPercentageLength;
@@ -783,7 +782,8 @@ impl From<NonNegativeLength> for Au {
 }
 
 /// Either a computed NonNegativeLengthPercentage or the `normal` keyword.
-pub type NonNegativeLengthPercentageOrNormal = GenericLengthPercentageOrNormal<NonNegativeLengthPercentage>;
+pub type NonNegativeLengthPercentageOrNormal =
+    GenericLengthPercentageOrNormal<NonNegativeLengthPercentage>;
 
 /// Either a non-negative `<length>` or a `<number>`.
 pub type NonNegativeLengthOrNumber = GenericLengthOrNumber<NonNegativeLength, NonNegativeNumber>;
diff --git a/components/style/values/computed/mod.rs b/components/style/values/computed/mod.rs
index 72de7f2238e..3b32f8fecd7 100644
--- a/components/style/values/computed/mod.rs
+++ b/components/style/values/computed/mod.rs
@@ -535,7 +535,9 @@ impl From<GreaterThanOrEqualToOneNumber> for CSSFloat {
 }
 
 #[allow(missing_docs)]
-#[derive(Clone, ComputeSquaredDistance, Copy, Debug, MallocSizeOf, PartialEq, ToCss, ToResolvedValue)]
+#[derive(
+    Clone, ComputeSquaredDistance, Copy, Debug, MallocSizeOf, PartialEq, ToCss, ToResolvedValue,
+)]
 #[repr(C, u8)]
 pub enum NumberOrPercentage {
     Percentage(Percentage),
diff --git a/components/style/values/generics/border.rs b/components/style/values/generics/border.rs
index fb6f1537662..ec0ab1c4b07 100644
--- a/components/style/values/generics/border.rs
+++ b/components/style/values/generics/border.rs
@@ -75,7 +75,11 @@ pub use self::GenericBorderImageSlice as BorderImageSlice;
     ToShmem,
 )]
 #[repr(C)]
-pub struct GenericBorderCornerRadius<L>(#[css(field_bound)] #[shmem(field_bound)] pub Size2D<L>);
+pub struct GenericBorderCornerRadius<L>(
+    #[css(field_bound)]
+    #[shmem(field_bound)]
+    pub Size2D<L>,
+);
 
 pub use self::GenericBorderCornerRadius as BorderCornerRadius;
 
@@ -114,7 +118,11 @@ impl<L: Zero> Zero for BorderCornerRadius<L> {
     ToShmem,
 )]
 #[repr(transparent)]
-pub struct BorderSpacing<L>(#[css(field_bound)] #[shmem(field_bound)] pub Size2D<L>);
+pub struct BorderSpacing<L>(
+    #[css(field_bound)]
+    #[shmem(field_bound)]
+    pub Size2D<L>,
+);
 
 impl<L> BorderSpacing<L> {
     /// Trivially create a `BorderCornerRadius`.
diff --git a/components/style/values/generics/color.rs b/components/style/values/generics/color.rs
index 5aa287baadf..b4f2e7445ea 100644
--- a/components/style/values/generics/color.rs
+++ b/components/style/values/generics/color.rs
@@ -40,7 +40,7 @@ pub enum GenericColor<RGBA> {
         color: RGBA,
         /// The ratios of mixing between numeric and currentcolor.
         ratios: ComplexColorRatios,
-    }
+    },
 }
 
 pub use self::GenericColor as Color;
diff --git a/components/style/values/generics/counters.rs b/components/style/values/generics/counters.rs
index 9da5b9140d9..17ac687a670 100644
--- a/components/style/values/generics/counters.rs
+++ b/components/style/values/generics/counters.rs
@@ -15,7 +15,15 @@ use std::ops::Deref;
 
 /// A name / value pair for counters.
 #[derive(
-    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub struct CounterPair<Integer> {
     /// The name of the counter.
diff --git a/components/style/values/generics/grid.rs b/components/style/values/generics/grid.rs
index 17af16e5167..393e570f066 100644
--- a/components/style/values/generics/grid.rs
+++ b/components/style/values/generics/grid.rs
@@ -379,7 +379,9 @@ where
 /// The initial argument of the `repeat` function.
 ///
 /// <https://drafts.csswg.org/css-grid/#typedef-track-repeat>
-#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+)]
 pub enum RepeatCount<Integer> {
     /// A positive integer. This is allowed only for `<track-repeat>` and `<fixed-repeat>`
     Number(Integer),
@@ -414,7 +416,16 @@ impl Parse for RepeatCount<specified::Integer> {
 ///
 /// It can also hold `repeat()` function parameters, which expands into the respective
 /// values in its computed form.
-#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
+)]
 #[css(function = "repeat")]
 pub struct TrackRepeat<L, I> {
     /// The number of times for the value to be repeated (could also be `auto-fit` or `auto-fill`)
diff --git a/components/style/values/generics/image.rs b/components/style/values/generics/image.rs
index 59fc260f93a..a7fa6da9337 100644
--- a/components/style/values/generics/image.rs
+++ b/components/style/values/generics/image.rs
@@ -16,7 +16,9 @@ use style_traits::{CssWriter, ToCss};
 /// An [image].
 ///
 /// [image]: https://drafts.csswg.org/css-images/#image-values
-#[derive(Clone, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem,
+)]
 pub enum Image<Gradient, MozImageRect, ImageUrl> {
     /// A `<url()>` image.
     Url(ImageUrl),
@@ -73,7 +75,9 @@ pub enum GradientKind<LineDirection, Length, LengthPercentage, Position, Angle>
 }
 
 /// A radial gradient's ending shape.
-#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+)]
 pub enum EndingShape<Length, LengthPercentage> {
     /// A circular gradient.
     Circle(Circle<Length>),
@@ -91,7 +95,9 @@ pub enum Circle<Length> {
 }
 
 /// An ellipse shape.
-#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+)]
 pub enum Ellipse<LengthPercentage> {
     /// An ellipse pair of radii.
     Radii(LengthPercentage, LengthPercentage),
@@ -103,7 +109,17 @@ pub enum Ellipse<LengthPercentage> {
 #[allow(missing_docs)]
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
 #[derive(
-    Clone, Copy, Debug, Eq, MallocSizeOf, Parse, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    Parse,
+    PartialEq,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub enum ShapeExtent {
     ClosestSide,
@@ -116,7 +132,9 @@ pub enum ShapeExtent {
 
 /// A gradient item.
 /// <https://drafts.csswg.org/css-images-4/#color-stop-syntax>
-#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+)]
 pub enum GradientItem<Color, LengthPercentage> {
     /// A color stop.
     ColorStop(ColorStop<Color, LengthPercentage>),
@@ -126,7 +144,9 @@ pub enum GradientItem<Color, LengthPercentage> {
 
 /// A color stop.
 /// <https://drafts.csswg.org/css-images/#typedef-color-stop-list>
-#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+)]
 pub struct ColorStop<Color, LengthPercentage> {
     /// The color of this stop.
     pub color: Color,
@@ -170,7 +190,15 @@ impl ToCss for PaintWorklet {
 #[allow(missing_docs)]
 #[css(comma, function)]
 #[derive(
-    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub struct MozImageRect<NumberOrPercentage, MozImageRectUrl> {
     pub url: MozImageRectUrl,
diff --git a/components/style/values/generics/mod.rs b/components/style/values/generics/mod.rs
index e5bb9fa727f..d735e3bbdef 100644
--- a/components/style/values/generics/mod.rs
+++ b/components/style/values/generics/mod.rs
@@ -44,7 +44,17 @@ pub mod url;
 #[allow(missing_docs)]
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
 #[derive(
-    Clone, Copy, Debug, Eq, MallocSizeOf, Parse, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    Parse,
+    PartialEq,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub enum SymbolsType {
     Cyclic,
diff --git a/components/style/values/generics/text.rs b/components/style/values/generics/text.rs
index 6324e7dfba8..a09260aa7e4 100644
--- a/components/style/values/generics/text.rs
+++ b/components/style/values/generics/text.rs
@@ -38,9 +38,7 @@ impl<N, I> InitialLetter<N, I> {
 }
 
 /// A generic spacing value for the `letter-spacing` and `word-spacing` properties.
-#[derive(
-    Clone, Copy, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToCss, ToShmem,
-)]
+#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToCss, ToShmem)]
 pub enum Spacing<Value> {
     /// `normal`
     Normal,
@@ -75,9 +73,10 @@ impl<Value> Spacing<Value> {
 #[cfg(feature = "gecko")]
 fn line_height_moz_block_height_enabled(context: &ParserContext) -> bool {
     use crate::gecko_bindings::structs;
-    context.in_ua_sheet() || unsafe {
-        structs::StaticPrefs_sVarCache_layout_css_line_height_moz_block_height_content_enabled
-    }
+    context.in_ua_sheet() ||
+        unsafe {
+            structs::StaticPrefs_sVarCache_layout_css_line_height_moz_block_height_content_enabled
+        }
 }
 
 /// A generic value for the `line-height` property.
diff --git a/components/style/values/generics/transform.rs b/components/style/values/generics/transform.rs
index bfa59c60fb2..6c6374db941 100644
--- a/components/style/values/generics/transform.rs
+++ b/components/style/values/generics/transform.rs
@@ -132,7 +132,15 @@ fn is_same<N: PartialEq>(x: &N, y: &N) -> bool {
 }
 
 #[derive(
-    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 /// A single operation in the list of a `transform` value
 pub enum TransformOperation<Angle, Number, Length, Integer, LengthPercentage>
@@ -239,7 +247,15 @@ where
 }
 
 #[derive(
-    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 /// A value of the `transform` property
 pub struct Transform<T>(#[css(if_empty = "none", iterable)] pub Vec<T>);
diff --git a/components/style/values/generics/ui.rs b/components/style/values/generics/ui.rs
index 444c9a561d1..945f60fb5dd 100644
--- a/components/style/values/generics/ui.rs
+++ b/components/style/values/generics/ui.rs
@@ -11,7 +11,16 @@ use values::specified::ui::CursorKind;
 /// A generic value for the `cursor` property.
 ///
 /// https://drafts.csswg.org/css-ui/#cursor
-#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
+)]
 pub struct Cursor<Image> {
     /// The parsed images for the cursor.
     pub images: Box<[Image]>,
@@ -44,7 +53,16 @@ impl<Image: ToCss> ToCss for Cursor<Image> {
 }
 
 /// A generic value for item of `image cursors`.
-#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
+)]
 pub struct CursorImage<ImageUrl, Number> {
     /// The url to parse images from.
     pub url: ImageUrl,
diff --git a/components/style/values/mod.rs b/components/style/values/mod.rs
index 89f0de816f2..e2da4984084 100644
--- a/components/style/values/mod.rs
+++ b/components/style/values/mod.rs
@@ -96,7 +96,15 @@ where
 /// Convenience void type to disable some properties and values through types.
 #[cfg_attr(feature = "servo", derive(Deserialize, MallocSizeOf, Serialize))]
 #[derive(
-    Clone, Copy, Debug, PartialEq, SpecifiedValueInfo, ToAnimatedValue, ToComputedValue, ToCss, ToResolvedValue,
+    Clone,
+    Copy,
+    Debug,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToAnimatedValue,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
 )]
 pub enum Impossible {}
 
@@ -155,7 +163,16 @@ impl<A: Debug, B: Debug> Debug for Either<A, B> {
 
 /// <https://drafts.csswg.org/css-values-4/#custom-idents>
 #[derive(
-    Clone, Debug, Eq, Hash, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    Eq,
+    Hash,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub struct CustomIdent(pub Atom);
 
@@ -193,7 +210,9 @@ impl ToCss for CustomIdent {
 }
 
 /// <https://drafts.csswg.org/css-animations/#typedef-keyframes-name>
-#[derive(Clone, Debug, MallocSizeOf, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone, Debug, MallocSizeOf, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem,
+)]
 pub enum KeyframesName {
     /// <custom-ident>
     Ident(CustomIdent),
diff --git a/components/style/values/resolved/mod.rs b/components/style/values/resolved/mod.rs
index 33609cbd89d..7877ed71a0b 100644
--- a/components/style/values/resolved/mod.rs
+++ b/components/style/values/resolved/mod.rs
@@ -5,9 +5,9 @@
 //! Resolved values. These are almost always computed values, but in some cases
 //! there are used values.
 
+use crate::properties::ComputedValues;
 use cssparser;
 use smallvec::SmallVec;
-use crate::properties::ComputedValues;
 
 mod color;
 
@@ -182,7 +182,9 @@ where
 
     #[inline]
     fn to_resolved_value(self, context: &Context) -> Self::ResolvedValue {
-        Vec::from(self).to_resolved_value(context).into_boxed_slice()
+        Vec::from(self)
+            .to_resolved_value(context)
+            .into_boxed_slice()
     }
 
     #[inline]
diff --git a/components/style/values/specified/align.rs b/components/style/values/specified/align.rs
index 20f801d13b2..7c2ecda19a4 100644
--- a/components/style/values/specified/align.rs
+++ b/components/style/values/specified/align.rs
@@ -134,7 +134,18 @@ pub enum AxisDirection {
 /// Shared value for the `align-content` and `justify-content` properties.
 ///
 /// <https://drafts.csswg.org/css-align/#content-distribution>
-#[derive(Clone, Copy, Debug, Eq, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    PartialEq,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
+)]
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
 pub struct ContentDistribution {
     primary: AlignFlags,
@@ -247,7 +258,18 @@ impl ContentDistribution {
 /// Value for the `align-content` property.
 ///
 /// <https://drafts.csswg.org/css-align/#propdef-align-content>
-#[derive(Clone, Copy, Debug, Eq, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    PartialEq,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
+)]
 pub struct AlignContent(pub ContentDistribution);
 
 impl Parse for AlignContent {
@@ -287,7 +309,18 @@ impl From<AlignContent> for u16 {
 /// Value for the `justify-content` property.
 ///
 /// <https://drafts.csswg.org/css-align/#propdef-justify-content>
-#[derive(Clone, Copy, Debug, Eq, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    PartialEq,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
+)]
 pub struct JustifyContent(pub ContentDistribution);
 
 impl Parse for JustifyContent {
@@ -325,7 +358,18 @@ impl From<JustifyContent> for u16 {
 }
 
 /// <https://drafts.csswg.org/css-align/#self-alignment>
-#[derive(Clone, Copy, Debug, Eq, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    PartialEq,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
+)]
 pub struct SelfAlignment(pub AlignFlags);
 
 impl SelfAlignment {
@@ -385,7 +429,18 @@ impl SelfAlignment {
 /// The specified value of the align-self property.
 ///
 /// <https://drafts.csswg.org/css-align/#propdef-align-self>
-#[derive(Clone, Copy, Debug, Eq, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    PartialEq,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
+)]
 pub struct AlignSelf(pub SelfAlignment);
 
 impl Parse for AlignSelf {
@@ -423,7 +478,18 @@ impl From<AlignSelf> for u8 {
 /// The specified value of the justify-self property.
 ///
 /// <https://drafts.csswg.org/css-align/#propdef-justify-self>
-#[derive(Clone, Copy, Debug, Eq, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    PartialEq,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
+)]
 pub struct JustifySelf(pub SelfAlignment);
 
 impl Parse for JustifySelf {
@@ -461,7 +527,18 @@ impl From<JustifySelf> for u8 {
 /// Value of the `align-items` property
 ///
 /// <https://drafts.csswg.org/css-align/#propdef-align-items>
-#[derive(Clone, Copy, Debug, Eq, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    PartialEq,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
+)]
 pub struct AlignItems(pub AlignFlags);
 
 impl AlignItems {
diff --git a/components/style/values/specified/background.rs b/components/style/values/specified/background.rs
index f087695db52..e7cb98a6ae9 100644
--- a/components/style/values/specified/background.rs
+++ b/components/style/values/specified/background.rs
@@ -64,7 +64,16 @@ pub enum BackgroundRepeatKeyword {
 /// axes.
 ///
 /// https://drafts.csswg.org/css-backgrounds/#the-background-repeat
-#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
+)]
 pub struct BackgroundRepeat(pub BackgroundRepeatKeyword, pub BackgroundRepeatKeyword);
 
 impl BackgroundRepeat {
diff --git a/components/style/values/specified/border.rs b/components/style/values/specified/border.rs
index c05217fab0c..59f2f7aa284 100644
--- a/components/style/values/specified/border.rs
+++ b/components/style/values/specified/border.rs
@@ -265,7 +265,15 @@ pub enum BorderImageRepeatKeyword {
 ///
 /// https://drafts.csswg.org/css-backgrounds/#the-border-image-repeat
 #[derive(
-    Clone, Copy, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem,
+    Clone,
+    Copy,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub struct BorderImageRepeat(pub BorderImageRepeatKeyword, pub BorderImageRepeatKeyword);
 
diff --git a/components/style/values/specified/box.rs b/components/style/values/specified/box.rs
index c003bf966bb..c90c270c59f 100644
--- a/components/style/values/specified/box.rs
+++ b/components/style/values/specified/box.rs
@@ -468,12 +468,17 @@ impl Parse for ScrollSnapType {
         _context: &ParserContext,
         input: &mut Parser<'i, 't>,
     ) -> Result<Self, ParseError<'i>> {
-        if input.try(|input| input.expect_ident_matching("none")).is_ok() {
+        if input
+            .try(|input| input.expect_ident_matching("none"))
+            .is_ok()
+        {
             return Ok(ScrollSnapType::none());
         }
 
         let axis = ScrollSnapAxis::parse(input)?;
-        let strictness = input.try(ScrollSnapStrictness::parse).unwrap_or(ScrollSnapStrictness::Proximity);
+        let strictness = input
+            .try(ScrollSnapStrictness::parse)
+            .unwrap_or(ScrollSnapStrictness::Proximity);
         Ok(Self { axis, strictness })
     }
 }
@@ -524,7 +529,16 @@ pub enum ScrollSnapAlignKeyword {
 /// https://drafts.csswg.org/css-scroll-snap-1/#scroll-snap-align
 #[allow(missing_docs)]
 #[derive(
-    Clone, Copy, Debug, Eq, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem,
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
 )]
 #[repr(C)]
 pub struct ScrollSnapAlign {
@@ -637,7 +651,15 @@ pub enum OverflowClipBox {
 }
 
 #[derive(
-    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 /// Provides a rendering hint to the user agent,
 /// stating what kinds of changes the author expects
@@ -940,7 +962,9 @@ pub type Perspective = GenericPerspective<NonNegativeLength>;
 
 /// A given transition property, that is either `All`, a longhand or shorthand
 /// property, or an unsupported or custom property.
-#[derive(Clone, Debug, Eq, Hash, MallocSizeOf, PartialEq, ToComputedValue, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone, Debug, Eq, Hash, MallocSizeOf, PartialEq, ToComputedValue, ToResolvedValue, ToShmem,
+)]
 pub enum TransitionProperty {
     /// A shorthand.
     Shorthand(ShorthandId),
@@ -1035,17 +1059,7 @@ impl TransitionProperty {
 #[allow(missing_docs)]
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
 #[derive(
-    Clone,
-    Copy,
-    Debug,
-    Eq,
-    Hash,
-    MallocSizeOf,
-    Parse,
-    PartialEq,
-    SpecifiedValueInfo,
-    ToCss,
-    ToShmem,
+    Clone, Copy, Debug, Eq, Hash, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem,
 )]
 /// https://drafts.csswg.org/css-box/#propdef-float
 pub enum Float {
@@ -1060,17 +1074,7 @@ pub enum Float {
 #[allow(missing_docs)]
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
 #[derive(
-    Clone,
-    Copy,
-    Debug,
-    Eq,
-    Hash,
-    MallocSizeOf,
-    Parse,
-    PartialEq,
-    SpecifiedValueInfo,
-    ToCss,
-    ToShmem,
+    Clone, Copy, Debug, Eq, Hash, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem,
 )]
 /// https://drafts.csswg.org/css-box/#propdef-clear
 pub enum Clear {
@@ -1087,17 +1091,7 @@ pub enum Clear {
 #[allow(missing_docs)]
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
 #[derive(
-    Clone,
-    Copy,
-    Debug,
-    Eq,
-    Hash,
-    MallocSizeOf,
-    Parse,
-    PartialEq,
-    SpecifiedValueInfo,
-    ToCss,
-    ToShmem,
+    Clone, Copy, Debug, Eq, Hash, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem,
 )]
 pub enum Resize {
     None,
diff --git a/components/style/values/specified/color.rs b/components/style/values/specified/color.rs
index 25e7af6b98b..375a7d23d49 100644
--- a/components/style/values/specified/color.rs
+++ b/components/style/values/specified/color.rs
@@ -407,7 +407,9 @@ impl ToComputedValue for MozFontSmoothingBackgroundColor {
     type ComputedValue = RGBA;
 
     fn to_computed_value(&self, context: &Context) -> RGBA {
-        self.0.to_computed_value(context).to_rgba(RGBA::transparent())
+        self.0
+            .to_computed_value(context)
+            .to_rgba(RGBA::transparent())
     }
 
     fn from_computed_value(computed: &RGBA) -> Self {
diff --git a/components/style/values/specified/font.rs b/components/style/values/specified/font.rs
index 809ffe77498..f02d44124a2 100644
--- a/components/style/values/specified/font.rs
+++ b/components/style/values/specified/font.rs
@@ -368,9 +368,7 @@ pub enum FontStretch {
 }
 
 /// A keyword value for `font-stretch`.
-#[derive(
-    Clone, Copy, Debug, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem,
-)]
+#[derive(Clone, Copy, Debug, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem)]
 #[allow(missing_docs)]
 pub enum FontStretchKeyword {
     Normal,
@@ -532,7 +530,9 @@ impl FontFamily {
     /// Parse a specified font-family value
     pub fn parse_specified<'i, 't>(input: &mut Parser<'i, 't>) -> Result<Self, ParseError<'i>> {
         let values = input.parse_comma_separated(SingleFontFamily::parse)?;
-        Ok(FontFamily::Values(FontFamilyList::new(values.into_boxed_slice())))
+        Ok(FontFamily::Values(FontFamilyList::new(
+            values.into_boxed_slice(),
+        )))
     }
 }
 
@@ -995,7 +995,9 @@ bitflags! {
     }
 }
 
-#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToCss, ToResolvedValue, ToShmem,
+)]
 /// Set of variant alternates
 pub enum VariantAlternates {
     /// Enables display of stylistic alternates
@@ -1020,7 +1022,9 @@ pub enum VariantAlternates {
     HistoricalForms,
 }
 
-#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToCss, ToResolvedValue, ToShmem,
+)]
 /// List of Variant Alternates
 pub struct VariantAlternatesList(
     #[css(if_empty = "normal", iterable)] pub Box<[VariantAlternates]>,
@@ -1858,7 +1862,15 @@ impl Parse for FontFeatureSettings {
 }
 
 #[derive(
-    Clone, Copy, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem,
+    Clone,
+    Copy,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
 )]
 /// Whether user agents are allowed to synthesize bold or oblique font faces
 /// when a font family lacks bold or italic faces
@@ -2178,7 +2190,15 @@ impl Parse for XTextZoom {
 }
 
 #[derive(
-    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 /// Internal property that reflects the lang attribute
 pub struct XLang(#[css(skip)] pub Atom);
@@ -2267,7 +2287,17 @@ impl Parse for MozScriptLevel {
 }
 
 #[cfg_attr(feature = "gecko", derive(MallocSizeOf))]
-#[derive(Clone, Copy, Debug, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
+)]
 /// Specifies the multiplier to be used to adjust font size
 /// due to changes in scriptlevel.
 ///
diff --git a/components/style/values/specified/length.rs b/components/style/values/specified/length.rs
index a6beef91ee5..5bb01955956 100644
--- a/components/style/values/specified/length.rs
+++ b/components/style/values/specified/length.rs
@@ -13,8 +13,7 @@ use crate::properties::computed_value_flags::ComputedValueFlags;
 use crate::values::computed::{self, CSSPixelLength, Context};
 use crate::values::generics::length as generics;
 use crate::values::generics::length::{
-    GenericLengthPercentageOrNormal, GenericLengthOrNumber,
-    GenericMaxSize, GenericSize,
+    GenericLengthOrNumber, GenericLengthPercentageOrNormal, GenericMaxSize, GenericSize,
 };
 use crate::values::generics::NonNegative;
 use crate::values::specified::calc::CalcNode;
@@ -958,7 +957,8 @@ impl NonNegativeLengthPercentageOrAuto {
 pub type NonNegativeLengthPercentage = NonNegative<LengthPercentage>;
 
 /// Either a NonNegativeLengthPercentage or the `normal` keyword.
-pub type NonNegativeLengthPercentageOrNormal = GenericLengthPercentageOrNormal<NonNegativeLengthPercentage>;
+pub type NonNegativeLengthPercentageOrNormal =
+    GenericLengthPercentageOrNormal<NonNegativeLengthPercentage>;
 
 impl From<NoCalcLength> for NonNegativeLengthPercentage {
     #[inline]
diff --git a/components/style/values/specified/list.rs b/components/style/values/specified/list.rs
index 5a95a9bd7f7..8c1e9fa2ad4 100644
--- a/components/style/values/specified/list.rs
+++ b/components/style/values/specified/list.rs
@@ -16,7 +16,16 @@ use style_traits::{ParseError, StyleParseErrorKind};
 /// Specified and computed `list-style-type` property.
 #[cfg(feature = "gecko")]
 #[derive(
-    Clone, Debug, Eq, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub enum ListStyleType {
     /// <counter-style> | none
@@ -77,7 +86,15 @@ impl Parse for ListStyleType {
 
 /// A quote pair.
 #[derive(
-    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub struct QuotePair {
     /// The opening quote.
@@ -89,7 +106,15 @@ pub struct QuotePair {
 
 /// Specified and computed `quotes` property.
 #[derive(
-    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub struct Quotes(
     #[css(iterable, if_empty = "none")]
diff --git a/components/style/values/specified/mod.rs b/components/style/values/specified/mod.rs
index 5c9e413cb09..64a76ccc582 100644
--- a/components/style/values/specified/mod.rs
+++ b/components/style/values/specified/mod.rs
@@ -709,7 +709,15 @@ impl AllowQuirks {
 ///
 /// `[namespace? `|`]? ident`
 #[derive(
-    Clone, Debug, Eq, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    Eq,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
 )]
 #[css(function)]
 pub struct Attr {
diff --git a/components/style/values/specified/position.rs b/components/style/values/specified/position.rs
index d3c39b4f582..f75af3f5585 100644
--- a/components/style/values/specified/position.rs
+++ b/components/style/values/specified/position.rs
@@ -571,7 +571,17 @@ impl From<GridAutoFlow> for u8 {
     }
 }
 
-#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem)]
+#[derive(
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
+)]
 /// https://drafts.csswg.org/css-grid/#named-grid-area
 pub struct TemplateAreas {
     /// `named area` containing for each template area
@@ -678,7 +688,15 @@ impl Parse for TemplateAreas {
 
 /// Arc type for `Arc<TemplateAreas>`
 #[derive(
-    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub struct TemplateAreasArc(#[ignore_malloc_size_of = "Arc"] pub Arc<TemplateAreas>);
 
diff --git a/components/style/values/specified/svg.rs b/components/style/values/specified/svg.rs
index b78b11f2ffa..dd4990782a0 100644
--- a/components/style/values/specified/svg.rs
+++ b/components/style/values/specified/svg.rs
@@ -129,7 +129,15 @@ const PAINT_ORDER_MASK: u8 = 0b11;
 /// Higher priority values, i.e. the values specified first,
 /// will be painted first (and may be covered by paintings of lower priority)
 #[derive(
-    Clone, Copy, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem,
+    Clone,
+    Copy,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub struct SVGPaintOrder(pub u8);
 
@@ -238,7 +246,15 @@ impl ToCss for SVGPaintOrder {
 /// Specified MozContextProperties value.
 /// Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/-moz-context-properties)
 #[derive(
-    Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub struct MozContextProperties(pub CustomIdent);
 
diff --git a/components/style/values/specified/text.rs b/components/style/values/specified/text.rs
index 44df9a4c38e..9d4c6ae649c 100644
--- a/components/style/values/specified/text.rs
+++ b/components/style/values/specified/text.rs
@@ -512,9 +512,7 @@ impl TextEmphasisKeywordValue {
 }
 
 /// Fill mode for the text-emphasis-style property
-#[derive(
-    Clone, Copy, Debug, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem,
-)]
+#[derive(Clone, Copy, Debug, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem)]
 pub enum TextEmphasisFillMode {
     /// `filled`
     Filled,
diff --git a/components/style/values/specified/ui.rs b/components/style/values/specified/ui.rs
index 52afa0fb256..0cc20d960c6 100644
--- a/components/style/values/specified/ui.rs
+++ b/components/style/values/specified/ui.rs
@@ -57,7 +57,15 @@ impl Parse for CursorImage {
 
 /// Specified value of `-moz-force-broken-image-icon`
 #[derive(
-    Clone, Copy, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem,
+    Clone,
+    Copy,
+    Debug,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToResolvedValue,
+    ToShmem,
 )]
 pub struct MozForceBrokenImageIcon(pub bool);
 
diff --git a/components/style_derive/to_animated_value.rs b/components/style_derive/to_animated_value.rs
index ac231be3452..51a73cbf4e1 100644
--- a/components/style_derive/to_animated_value.rs
+++ b/components/style_derive/to_animated_value.rs
@@ -10,20 +10,20 @@ use to_computed_value;
 pub fn derive(input: DeriveInput) -> TokenStream {
     let trait_impl = |from_body, to_body| {
         quote! {
-            #[inline]
-            fn from_animated_value(animated: Self::AnimatedValue) -> Self {
-                match animated {
-                    #from_body
-                }
-            }
+             #[inline]
+             fn from_animated_value(animated: Self::AnimatedValue) -> Self {
+                 match animated {
+                     #from_body
+                 }
+             }
 
-            #[inline]
-            fn to_animated_value(self) -> Self::AnimatedValue {
-                match self {
-                    #to_body
-                }
-            }
-       }
+             #[inline]
+             fn to_animated_value(self) -> Self::AnimatedValue {
+                 match self {
+                     #to_body
+                 }
+             }
+        }
     };
 
     // TODO(emilio): Consider optimizing away non-generic cases as well?
diff --git a/components/style_derive/to_computed_value.rs b/components/style_derive/to_computed_value.rs
index 6010b7483cb..ed6e07a2f5a 100644
--- a/components/style_derive/to_computed_value.rs
+++ b/components/style_derive/to_computed_value.rs
@@ -55,10 +55,7 @@ pub fn derive_to_value(
     let (to_body, from_body) = {
         let params = input.generics.type_params().collect::<Vec<_>>();
         for param in &params {
-            cg::add_predicate(
-                &mut where_clause,
-                parse_quote!(#param: #trait_path),
-            );
+            cg::add_predicate(&mut where_clause, parse_quote!(#param: #trait_path));
         }
 
         let to_body = cg::fmap_match(&input, bind_style, |binding| {
@@ -80,20 +77,14 @@ pub fn derive_to_value(
             }
             call_to(&binding)
         });
-        let from_body = cg::fmap_match(&input, bind_style, |binding| {
-            call_from(&binding)
-        });
+        let from_body = cg::fmap_match(&input, bind_style, |binding| call_from(&binding));
 
         (to_body, from_body)
     };
 
     input.generics.where_clause = where_clause;
     let (impl_generics, ty_generics, where_clause) = input.generics.split_for_impl();
-    let computed_value_type = cg::fmap_trait_output(
-        &input,
-        &trait_path,
-        &output_type_name,
-    );
+    let computed_value_type = cg::fmap_trait_output(&input, &trait_path, &output_type_name);
 
     let impl_ = trait_impl(from_body, to_body);
 
@@ -109,21 +100,21 @@ pub fn derive_to_value(
 pub fn derive(input: DeriveInput) -> TokenStream {
     let trait_impl = |from_body, to_body| {
         quote! {
-            #[inline]
-            fn from_computed_value(computed: &Self::ComputedValue) -> Self {
-                match *computed {
-                    #from_body
-                }
-            }
-
-            #[allow(unused_variables)]
-            #[inline]
-            fn to_computed_value(&self, context: &crate::values::computed::Context) -> Self::ComputedValue {
-                match *self {
-                    #to_body
-                }
-            }
-       }
+             #[inline]
+             fn from_computed_value(computed: &Self::ComputedValue) -> Self {
+                 match *computed {
+                     #from_body
+                 }
+             }
+
+             #[allow(unused_variables)]
+             #[inline]
+             fn to_computed_value(&self, context: &crate::values::computed::Context) -> Self::ComputedValue {
+                 match *self {
+                     #to_body
+                 }
+             }
+        }
     };
 
     let non_generic_implementation = || {
diff --git a/components/style_derive/to_resolved_value.rs b/components/style_derive/to_resolved_value.rs
index 70d3f71876f..040cda954a8 100644
--- a/components/style_derive/to_resolved_value.rs
+++ b/components/style_derive/to_resolved_value.rs
@@ -11,23 +11,23 @@ use to_computed_value;
 pub fn derive(input: DeriveInput) -> TokenStream {
     let trait_impl = |from_body, to_body| {
         quote! {
-            #[inline]
-            fn from_resolved_value(resolved: Self::ResolvedValue) -> Self {
-                match resolved {
-                    #from_body
-                }
-            }
+             #[inline]
+             fn from_resolved_value(resolved: Self::ResolvedValue) -> Self {
+                 match resolved {
+                     #from_body
+                 }
+             }
 
-            #[inline]
-            fn to_resolved_value(
-                self,
-                context: &crate::values::resolved::Context,
-            ) -> Self::ResolvedValue {
-                match self {
-                    #to_body
-                }
-            }
-       }
+             #[inline]
+             fn to_resolved_value(
+                 self,
+                 context: &crate::values::resolved::Context,
+             ) -> Self::ResolvedValue {
+                 match self {
+                     #to_body
+                 }
+             }
+        }
     };
 
     let non_generic_implementation = || {
diff --git a/components/to_shmem/lib.rs b/components/to_shmem/lib.rs
index db6efe20895..59fc2afb546 100644
--- a/components/to_shmem/lib.rs
+++ b/components/to_shmem/lib.rs
@@ -24,17 +24,17 @@ use smallvec::{Array, SmallVec};
 use std::alloc::Layout;
 #[cfg(debug_assertions)]
 use std::any::TypeId;
-use std::isize;
 #[cfg(debug_assertions)]
 use std::collections::HashSet;
 use std::ffi::CString;
+use std::isize;
 use std::marker::PhantomData;
 use std::mem::{self, ManuallyDrop};
 use std::num::Wrapping;
 use std::ops::Range;
+use std::os::raw::c_char;
 #[cfg(debug_assertions)]
 use std::os::raw::c_void;
-use std::os::raw::c_char;
 use std::ptr::{self, NonNull};
 use std::slice;
 use std::str;
@@ -166,7 +166,7 @@ impl SharedMemoryBuilder {
 
         // Reserve space for the padding.
         let start = self.index.checked_add(padding).unwrap();
-        assert!(start <= std::isize::MAX as usize);  // for the cast below
+        assert!(start <= std::isize::MAX as usize); // for the cast below
 
         // Reserve space for the value.
         let end = start.checked_add(layout.size()).unwrap();
@@ -205,7 +205,22 @@ macro_rules! impl_trivial_to_shmem {
     )*};
 }
 
-impl_trivial_to_shmem!((), bool, f32, f64, i8, i16, i32, i64, u8, u16, u32, u64, isize, usize);
+impl_trivial_to_shmem!(
+    (),
+    bool,
+    f32,
+    f64,
+    i8,
+    i16,
+    i32,
+    i64,
+    u8,
+    u16,
+    u32,
+    u64,
+    isize,
+    usize
+);
 
 impl_trivial_to_shmem!(cssparser::RGBA);
 impl_trivial_to_shmem!(cssparser::SourceLocation);
@@ -424,7 +439,9 @@ impl<T: 'static + ToShmem> ToShmem for Arc<T> {
         #[cfg(debug_assertions)]
         assert!(
             !builder.shared_values.contains(&self.heap_ptr()) ||
-            builder.allowed_duplication_types.contains(&TypeId::of::<T>()),
+                builder
+                    .allowed_duplication_types
+                    .contains(&TypeId::of::<T>()),
             "ToShmem failed for Arc<T>: encountered a value of type T with multiple references \
              and which has not been explicitly allowed with an add_allowed_duplication_type call",
         );
@@ -463,11 +480,7 @@ impl<H: 'static + ToShmem, T: 'static + ToShmem> ToShmem for ThinArc<H, T> {
         // Make a clone of the Arc-owned header and slice values with all of
         // their heap allocations placed in the shared memory buffer.
         let header = self.header.header.to_shmem(builder);
-        let values: Vec<ManuallyDrop<T>> = self
-            .slice
-            .iter()
-            .map(|v| v.to_shmem(builder))
-            .collect();
+        let values: Vec<ManuallyDrop<T>> = self.slice.iter().map(|v| v.to_shmem(builder)).collect();
 
         // Create a new ThinArc with the shared value and have it place
         // its ArcInner in the shared memory buffer.
@@ -499,10 +512,11 @@ impl ToShmem for SmallBitVec {
                     let src = vs.as_ptr() as *const usize;
                     ptr::copy(src, dest, len);
 
-                    let dest_slice = Box::from_raw(slice::from_raw_parts_mut(dest, len) as *mut [usize]);
+                    let dest_slice =
+                        Box::from_raw(slice::from_raw_parts_mut(dest, len) as *mut [usize]);
                     InternalStorage::Spilled(dest_slice)
                 }
-            }
+            },
             InternalStorage::Inline(x) => InternalStorage::Inline(x),
         };
         ManuallyDrop::new(unsafe { SmallBitVec::from_storage(storage) })
diff --git a/components/to_shmem_derive/to_shmem.rs b/components/to_shmem_derive/to_shmem.rs
index 5021476aad4..1335ef4eea6 100644
--- a/components/to_shmem_derive/to_shmem.rs
+++ b/components/to_shmem_derive/to_shmem.rs
@@ -12,10 +12,7 @@ pub fn derive(mut input: syn::DeriveInput) -> TokenStream {
     let attrs = cg::parse_input_attrs::<ShmemInputAttrs>(&input);
     if !attrs.no_bounds {
         for param in input.generics.type_params() {
-            cg::add_predicate(
-                &mut where_clause,
-                parse_quote!(#param: ::to_shmem::ToShmem),
-            );
+            cg::add_predicate(&mut where_clause, parse_quote!(#param: ::to_shmem::ToShmem));
         }
     }
     for variant in Structure::new(&input).variants() {
@@ -23,10 +20,7 @@ pub fn derive(mut input: syn::DeriveInput) -> TokenStream {
             let attrs = cg::parse_field_attrs::<ShmemFieldAttrs>(&binding.ast());
             if attrs.field_bound {
                 let ty = &binding.ast().ty;
-                cg::add_predicate(
-                    &mut where_clause,
-                    parse_quote!(#ty: ::to_shmem::ToShmem),
-                )
+                cg::add_predicate(&mut where_clause, parse_quote!(#ty: ::to_shmem::ToShmem))
             }
         }
     }