style: Fix Servo build, and rustfmt recent changes.

components/style/gecko/wrapper.rs

@@ -829,9 +829,7 @@ impl<'le> GeckoElement<'le> {
 
     #[inline]
     fn is_in_anonymous_subtree(&self) -> bool {
-        unsafe {
-            bindings::Gecko_IsInAnonymousSubtree(self.0)
-        }
+        unsafe { bindings::Gecko_IsInAnonymousSubtree(self.0) }
     }
 
     /// Returns true if this node is the shadow root of an use-element shadow tree.

components/style/global_style_data.rs

@@ -10,10 +10,10 @@ use crate::gecko_bindings::bindings;
 use crate::parallel::STYLE_THREAD_STACK_SIZE_KB;
 use crate::shared_lock::SharedRwLock;
 use crate::thread_state;
+use parking_lot::{RwLock, RwLockReadGuard};
 use rayon;
 use std::env;
 use std::sync::atomic::{AtomicUsize, Ordering};
-use parking_lot::{RwLock, RwLockReadGuard};
 
 /// Global style data
 pub struct GlobalStyleData {

components/style/media_queries/media_feature_expression.rs

@@ -16,7 +16,9 @@ use crate::parser::{Parse, ParserContext};
 use crate::servo::media_queries::MEDIA_FEATURES;
 use crate::str::{starts_with_ignore_ascii_case, string_as_ascii_lowercase};
 use crate::values::computed::{self, ToComputedValue};
-use crate::values::specified::{Integer, NonNegativeNumber, Length, Number, Resolution};
+#[cfg(feature = "gecko")]
+use crate::values::specified::NonNegativeNumber;
+use crate::values::specified::{Integer, Length, Number, Resolution};
 use crate::values::{serialize_atom_identifier, CSSFloat};
 use crate::{Atom, Zero};
 use cssparser::{Parser, Token};
@@ -429,9 +431,11 @@ impl MediaFeatureExpression {
                 eval(device, expect!(Integer).cloned(), self.range_or_operator)
             },
             Evaluator::Float(eval) => eval(device, expect!(Float).cloned(), self.range_or_operator),
-            Evaluator::NumberRatio(eval) => {
-                eval(device, expect!(NumberRatio).cloned(), self.range_or_operator)
-            },
+            Evaluator::NumberRatio(eval) => eval(
+                device,
+                expect!(NumberRatio).cloned(),
+                self.range_or_operator,
+            ),
             Evaluator::Resolution(eval) => {
                 let computed = expect!(Resolution).map(|specified| {
                     computed::Context::for_media_query_evaluation(device, quirks_mode, |context| {
@@ -530,19 +534,25 @@ impl MediaExpressionValue {
                 MediaExpressionValue::Float(number.get())
             },
             Evaluator::NumberRatio(..) => {
-                if static_prefs::pref!("layout.css.aspect-ratio-number.enabled") {
-                    let a = NonNegativeNumber::parse(context, input)?.0.get();
-                    let b = match input.try_parse(|input| input.expect_delim('/')) {
-                        Ok(()) => NonNegativeNumber::parse(context, input)?.0.get(),
-                        _ => 1.0,
-                    };
-                    MediaExpressionValue::NumberRatio(AspectRatio(a, b))
-                } else {
-                    let a = Integer::parse_positive(context, input)?;
-                    input.expect_delim('/')?;
-                    let b = Integer::parse_positive(context, input)?;
-                    MediaExpressionValue::NumberRatio(AspectRatio(a.value() as CSSFloat, b.value() as CSSFloat))
+                #[cfg(feature = "gecko")]
+                {
+                    if static_prefs::pref!("layout.css.aspect-ratio-number.enabled") {
+                        let a = NonNegativeNumber::parse(context, input)?.0.get();
+                        let b = match input.try_parse(|input| input.expect_delim('/')) {
+                            Ok(()) => NonNegativeNumber::parse(context, input)?.0.get(),
+                            _ => 1.0,
+                        };
+                        return Ok(MediaExpressionValue::NumberRatio(AspectRatio(a, b)));
+                    }
                 }
+
+                let a = Integer::parse_positive(context, input)?;
+                input.expect_delim('/')?;
+                let b = Integer::parse_positive(context, input)?;
+                MediaExpressionValue::NumberRatio(AspectRatio(
+                    a.value() as CSSFloat,
+                    b.value() as CSSFloat,
+                ))
             },
             Evaluator::Resolution(..) => {
                 MediaExpressionValue::Resolution(Resolution::parse(context, input)?)

components/style/properties/data.py

@@ -797,6 +797,7 @@ class PropertyRestrictions:
           + PropertyRestrictions.shorthand(data, "outline")
           + PropertyRestrictions.shorthand(data, "font"))
 
+
 class CountedUnknownProperty:
     def __init__(self, name):
         self.name = name

components/style/properties/shorthands/text.mako.rs

@@ -73,6 +73,7 @@
     }
 
     impl<'a> ToCss for LonghandsToSerialize<'a>  {
+        #[allow(unused)]
         fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result where W: fmt::Write {
             use crate::values::specified::TextDecorationLine;
 

components/style/values/computed/font.rs

@@ -9,11 +9,15 @@ use crate::gecko_bindings::sugar::refptr::RefPtr;
 #[cfg(feature = "gecko")]
 use crate::gecko_bindings::{bindings, structs};
 use crate::values::animated::{ToAnimatedValue, ToAnimatedZero};
-use crate::values::computed::{Angle, Context, Integer, Length, NonNegativeLength, NonNegativePercentage};
+use crate::values::computed::{
+    Angle, Context, Integer, Length, NonNegativeLength, NonNegativePercentage,
+};
 use crate::values::computed::{Number, Percentage, ToComputedValue};
-use crate::values::generics::{font as generics, NonNegative};
 use crate::values::generics::font::{FeatureTagValue, FontSettings, VariationValue};
-use crate::values::specified::font::{self as specified, KeywordInfo, MAX_FONT_WEIGHT, MIN_FONT_WEIGHT};
+use crate::values::generics::{font as generics, NonNegative};
+use crate::values::specified::font::{
+    self as specified, KeywordInfo, MAX_FONT_WEIGHT, MIN_FONT_WEIGHT,
+};
 use crate::values::specified::length::{FontBaseSize, NoCalcLength};
 use crate::values::CSSFloat;
 use crate::Atom;

components/style/values/generics/counters.rs

@@ -118,7 +118,9 @@ impl<I> Deref for CounterSetOrReset<I> {
     ToShmem,
 )]
 #[repr(transparent)]
-pub struct GenericCounters<I>(#[css(iterable, if_empty = "none")] crate::OwnedSlice<GenericCounterPair<I>>);
+pub struct GenericCounters<I>(
+    #[css(iterable, if_empty = "none")] crate::OwnedSlice<GenericCounterPair<I>>,
+);
 pub use self::GenericCounters as Counters;
 
 #[cfg(feature = "servo")]

components/style/values/generics/font.rs

@@ -171,7 +171,6 @@ impl Parse for FontTag {
     }
 }
 
-
 /// A generic value for the `font-style` property.
 ///
 /// https://drafts.csswg.org/css-fonts-4/#font-style-prop

components/style/values/generics/mod.rs

@@ -309,4 +309,10 @@ impl<L> ClipRectOrAuto<L> {
     pub fn auto() -> Self {
         ClipRectOrAuto::Auto
     }
+
+    /// Returns whether this value is the `auto` value.
+    #[inline]
+    pub fn is_auto(&self) -> bool {
+        matches!(*self, ClipRectOrAuto::Auto)
+    }
 }

components/style/values/specified/counters.rs

@@ -8,8 +8,8 @@
 use crate::computed_values::list_style_type::T as ListStyleType;
 use crate::parser::{Parse, ParserContext};
 use crate::values::generics::counters as generics;
-use crate::values::generics::counters::GenericCounterIncrement;
 use crate::values::generics::counters::CounterPair;
+use crate::values::generics::counters::GenericCounterIncrement;
 use crate::values::generics::counters::GenericCounterSetOrReset;
 #[cfg(feature = "gecko")]
 use crate::values::generics::CounterStyle;

components/style/values/specified/font.rs

@@ -12,8 +12,8 @@ use crate::values::computed::font::{FamilyName, FontFamilyList, FontStyleAngle,
 use crate::values::computed::{font as computed, Length, NonNegativeLength};
 use crate::values::computed::{Angle as ComputedAngle, Percentage as ComputedPercentage};
 use crate::values::computed::{CSSPixelLength, Context, ToComputedValue};
-use crate::values::generics::font::{self as generics, FeatureTagValue, FontSettings, FontTag};
 use crate::values::generics::font::VariationValue;
+use crate::values::generics::font::{self as generics, FeatureTagValue, FontSettings, FontTag};
 use crate::values::generics::NonNegative;
 use crate::values::specified::length::{FontBaseSize, AU_PER_PT, AU_PER_PX};
 use crate::values::specified::{AllowQuirks, Angle, Integer, LengthPercentage};
@@ -877,19 +877,17 @@ impl ToComputedValue for KeywordSize {
 impl FontSize {
     /// <https://html.spec.whatwg.org/multipage/#rules-for-parsing-a-legacy-font-size>
     pub fn from_html_size(size: u8) -> Self {
-        FontSize::Keyword(
-            KeywordInfo::new(match size {
-                // If value is less than 1, let it be 1.
-                0 | 1 => KeywordSize::XSmall,
-                2 => KeywordSize::Small,
-                3 => KeywordSize::Medium,
-                4 => KeywordSize::Large,
-                5 => KeywordSize::XLarge,
-                6 => KeywordSize::XXLarge,
-                // If value is greater than 7, let it be 7.
-                _ => KeywordSize::XXXLarge,
-            })
-        )
+        FontSize::Keyword(KeywordInfo::new(match size {
+            // If value is less than 1, let it be 1.
+            0 | 1 => KeywordSize::XSmall,
+            2 => KeywordSize::Small,
+            3 => KeywordSize::Medium,
+            4 => KeywordSize::Large,
+            5 => KeywordSize::XLarge,
+            6 => KeywordSize::XXLarge,
+            // If value is greater than 7, let it be 7.
+            _ => KeywordSize::XXXLarge,
+        }))
     }
 
     /// Compute it against a given base font size
@@ -924,9 +922,7 @@ impl FontSize {
             FontSize::Length(LengthPercentage::Length(NoCalcLength::Absolute(ref l))) => {
                 context.maybe_zoom_text(l.to_computed_value(context))
             },
-            FontSize::Length(LengthPercentage::Length(ref l)) => {
-                l.to_computed_value(context)
-            },
+            FontSize::Length(LengthPercentage::Length(ref l)) => l.to_computed_value(context),
             FontSize::Length(LengthPercentage::Percentage(pc)) => {
                 // If the parent font was keyword-derived, this is too.
                 // Tack the % onto the factor
@@ -983,8 +979,7 @@ impl FontSize {
             },
             FontSize::Larger => {
                 info = compose_keyword(LARGER_FONT_SIZE_RATIO);
-                FontRelativeLength::Em(LARGER_FONT_SIZE_RATIO)
-                    .to_computed_value(context, base_size)
+                FontRelativeLength::Em(LARGER_FONT_SIZE_RATIO).to_computed_value(context, base_size)
             },
 
             FontSize::System(_) => {
@@ -994,7 +989,13 @@ impl FontSize {
                 }
                 #[cfg(feature = "gecko")]
                 {
-                    context.cached_system_font.as_ref().unwrap().font_size.size.0
+                    context
+                        .cached_system_font
+                        .as_ref()
+                        .unwrap()
+                        .font_size
+                        .size
+                        .0
                 }
             },
         };
@@ -1115,7 +1116,15 @@ pub enum VariantAlternates {
 }
 
 #[derive(
-    Clone, Debug, Default, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToCss, ToResolvedValue, ToShmem,
+    Clone,
+    Debug,
+    Default,
+    MallocSizeOf,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
 )]
 #[repr(transparent)]
 /// List of Variant Alternates
@@ -1190,7 +1199,7 @@ impl Parse for FontVariantAlternates {
             .try(|input| input.expect_ident_matching("normal"))
             .is_ok()
         {
-            return Ok(FontVariantAlternates::Value(Default::default()))
+            return Ok(FontVariantAlternates::Value(Default::default()));
         }
 
         let mut alternates = Vec::new();

components/style/values/specified/mod.rs

@@ -706,7 +706,7 @@ impl ClipRectOrAuto {
         allow_quirks: AllowQuirks,
     ) -> Result<Self, ParseError<'i>> {
         if let Ok(v) = input.try(|i| ClipRect::parse_quirky(context, i, allow_quirks)) {
-            return Ok(generics::GenericClipRectOrAuto::Rect(v))
+            return Ok(generics::GenericClipRectOrAuto::Rect(v));
         }
         input.expect_ident_matching("auto")?;
         Ok(generics::GenericClipRectOrAuto::Auto)

components/style/values/specified/text.rs

@@ -89,8 +89,7 @@ impl ToComputedValue for LineHeight {
             GenericLineHeight::Length(ref non_negative_lp) => {
                 let result = match non_negative_lp.0 {
                     LengthPercentage::Length(NoCalcLength::Absolute(ref abs)) => {
-                        context
-                            .maybe_zoom_text(abs.to_computed_value(context))
+                        context.maybe_zoom_text(abs.to_computed_value(context))
                     },
                     LengthPercentage::Length(ref length) => length.to_computed_value(context),
                     LengthPercentage::Percentage(ref p) => FontRelativeLength::Em(p.0)