Run rustfmt on selectors, servo_arc, and style.

This was generated with:

./mach cargo fmt --package selectors &&
./mach cargo fmt --package servo_arc &&
./mach cargo fmt --package style

Using rustfmt 0.4.1-nightly (a4462d1 2018-03-26)

components/style/gecko_string_cache/mod.rs

@@ -14,7 +14,7 @@ use gecko_bindings::structs::{nsAtom, nsAtom_AtomKind, nsDynamicAtom, nsStaticAt
 use nsstring::{nsAString, nsStr};
 use precomputed_hash::PrecomputedHash;
 use std::{mem, slice, str};
-use std::borrow::{Cow, Borrow};
+use std::borrow::{Borrow, Cow};
 use std::char::{self, DecodeUtf16};
 use std::fmt::{self, Write};
 use std::hash::{Hash, Hasher};
@@ -33,7 +33,9 @@ pub mod namespace;
 pub use self::namespace::{Namespace, WeakNamespace};
 
 macro_rules! local_name {
-    ($s: tt) => { atom!($s) }
+    ($s:tt) => {
+        atom!($s)
+    };
 }
 
 /// A strong reference to a Gecko atom.
@@ -55,9 +57,7 @@ impl Deref for Atom {
 
     #[inline]
     fn deref(&self) -> &WeakAtom {
-        unsafe {
-            &*self.0
-        }
+        unsafe { &*self.0 }
     }
 }
 
@@ -99,9 +99,7 @@ impl WeakAtom {
     /// Clone this atom, bumping the refcount if the atom is not static.
     #[inline]
     pub fn clone(&self) -> Atom {
-        unsafe {
-            Atom::from_raw(self.as_ptr())
-        }
+        unsafe { Atom::from_raw(self.as_ptr()) }
     }
 
     /// Get the atom hash.
@@ -114,16 +112,16 @@ impl WeakAtom {
     #[inline]
     pub fn as_slice(&self) -> &[u16] {
         let string = if self.is_static() {
-           let atom_ptr = self.as_ptr() as *const nsStaticAtom;
-           let string_offset = unsafe { (*atom_ptr).mStringOffset };
-           let string_offset = -(string_offset as isize);
-           let u8_ptr = atom_ptr as *const u8;
-           // It is safe to use offset() here because both addresses are within
-           // the same struct, e.g. mozilla::detail::gGkAtoms.
-           unsafe { u8_ptr.offset(string_offset) as *const u16 }
+            let atom_ptr = self.as_ptr() as *const nsStaticAtom;
+            let string_offset = unsafe { (*atom_ptr).mStringOffset };
+            let string_offset = -(string_offset as isize);
+            let u8_ptr = atom_ptr as *const u8;
+            // It is safe to use offset() here because both addresses are within
+            // the same struct, e.g. mozilla::detail::gGkAtoms.
+            unsafe { u8_ptr.offset(string_offset) as *const u16 }
         } else {
-           let atom_ptr = self.as_ptr() as *const nsDynamicAtom;
-           unsafe { (*(atom_ptr)).mString }
+            let atom_ptr = self.as_ptr() as *const nsDynamicAtom;
+            unsafe { (*(atom_ptr)).mString }
         };
         unsafe { slice::from_raw_parts(string, self.len() as usize) }
     }
@@ -139,7 +137,7 @@ impl WeakAtom {
     /// pretty slow.
     pub fn with_str<F, Output>(&self, cb: F) -> Output
     where
-        F: FnOnce(&str) -> Output
+        F: FnOnce(&str) -> Output,
     {
         let mut buffer: [u8; 64] = unsafe { mem::uninitialized() };
 
@@ -175,17 +173,13 @@ impl WeakAtom {
     /// Returns whether this atom is static.
     #[inline]
     pub fn is_static(&self) -> bool {
-        unsafe {
-            (*self.as_ptr()).mKind() == nsAtom_AtomKind::Static as u32
-        }
+        unsafe { (*self.as_ptr()).mKind() == nsAtom_AtomKind::Static as u32 }
     }
 
     /// Returns the length of the atom string.
     #[inline]
     pub fn len(&self) -> u32 {
-        unsafe {
-            (*self.as_ptr()).mLength()
-        }
+        unsafe { (*self.as_ptr()).mLength() }
     }
 
     /// Returns whether this atom is the empty string.
@@ -204,7 +198,10 @@ impl WeakAtom {
     /// Convert this atom to ASCII lower-case
     pub fn to_ascii_lowercase(&self) -> Atom {
         let slice = self.as_slice();
-        match slice.iter().position(|&char16| (b'A' as u16) <= char16 && char16 <= (b'Z' as u16)) {
+        match slice
+            .iter()
+            .position(|&char16| (b'A' as u16) <= char16 && char16 <= (b'Z' as u16))
+        {
             None => self.clone(),
             Some(i) => {
                 let mut buffer: [u16; 64] = unsafe { mem::uninitialized() };
@@ -222,7 +219,7 @@ impl WeakAtom {
                     }
                 }
                 Atom::from(&*mutable_slice)
-            }
+            },
         }
     }
 
@@ -245,8 +242,9 @@ impl WeakAtom {
 
     /// Return whether this atom is an ASCII-case-insensitive match for the given string
     pub fn eq_str_ignore_ascii_case(&self, other: &str) -> bool {
-        self.chars().map(|r| r.map(|c: char| c.to_ascii_lowercase()))
-        .eq(other.chars().map(|c: char| Ok(c.to_ascii_lowercase())))
+        self.chars()
+            .map(|r| r.map(|c: char| c.to_ascii_lowercase()))
+            .eq(other.chars().map(|c: char| Ok(c.to_ascii_lowercase())))
     }
 }
 
@@ -267,7 +265,10 @@ impl fmt::Display for WeakAtom {
 
 impl Atom {
     /// Execute a callback with the atom represented by `ptr`.
-    pub unsafe fn with<F, R>(ptr: *mut nsAtom, callback: F) -> R where F: FnOnce(&Atom) -> R {
+    pub unsafe fn with<F, R>(ptr: *mut nsAtom, callback: F) -> R
+    where
+        F: FnOnce(&Atom) -> R,
+    {
         let atom = Atom(WeakAtom::new(ptr));
         let ret = callback(&atom);
         mem::forget(atom);
@@ -283,8 +284,10 @@ impl Atom {
     #[inline]
     pub unsafe fn from_static(ptr: *mut nsStaticAtom) -> Self {
         let atom = Atom(ptr as *mut WeakAtom);
-        debug_assert!(atom.is_static(),
-                      "Called from_static for a non-static atom!");
+        debug_assert!(
+            atom.is_static(),
+            "Called from_static for a non-static atom!"
+        );
         atom
     }
 
@@ -316,13 +319,19 @@ impl Atom {
 }
 
 impl Hash for Atom {
-    fn hash<H>(&self, state: &mut H) where H: Hasher {
+    fn hash<H>(&self, state: &mut H)
+    where
+        H: Hasher,
+    {
         state.write_u32(self.get_hash());
     }
 }
 
 impl Hash for WeakAtom {
-    fn hash<H>(&self, state: &mut H) where H: Hasher {
+    fn hash<H>(&self, state: &mut H)
+    where
+        H: Hasher,
+    {
         state.write_u32(self.get_hash());
     }
 }
@@ -330,9 +339,7 @@ impl Hash for WeakAtom {
 impl Clone for Atom {
     #[inline(always)]
     fn clone(&self) -> Atom {
-        unsafe {
-            Atom::from_raw(self.as_ptr())
-        }
+        unsafe { Atom::from_raw(self.as_ptr()) }
     }
 }
 
@@ -362,9 +369,7 @@ impl fmt::Debug for Atom {
 
 impl fmt::Display for Atom {
     fn fmt(&self, w: &mut fmt::Formatter) -> fmt::Result {
-        unsafe {
-            (&*self.0).fmt(w)
-        }
+        unsafe { (&*self.0).fmt(w) }
     }
 }
 
@@ -373,9 +378,10 @@ impl<'a> From<&'a str> for Atom {
     fn from(string: &str) -> Atom {
         debug_assert!(string.len() <= u32::max_value() as usize);
         unsafe {
-            Atom(WeakAtom::new(
-                Gecko_Atomize(string.as_ptr() as *const _, string.len() as u32)
-            ))
+            Atom(WeakAtom::new(Gecko_Atomize(
+                string.as_ptr() as *const _,
+                string.len() as u32,
+            )))
         }
     }
 }
@@ -390,11 +396,7 @@ impl<'a> From<&'a [u16]> for Atom {
 impl<'a> From<&'a nsAString> for Atom {
     #[inline]
     fn from(string: &nsAString) -> Atom {
-        unsafe {
-            Atom(WeakAtom::new(
-                Gecko_Atomize16(string)
-            ))
-        }
+        unsafe { Atom(WeakAtom::new(Gecko_Atomize16(string))) }
     }
 }