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style: Make quotes property representation allocate less.

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Differential Revision: https://phabricator.services.mozilla.com/D10650
This commit is contained in:
Cameron McCormack 2018-11-06 23:03:33 +00:00 • committed by Emilio Cobos Álvarez
parent 56fd3b786f
commit acf7b65f36
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GPG key ID: 056B727BB9C1027C
5 changed files with 54 additions and 66 deletions
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18
components/style/properties/gecko.mako.rs
View file

@ -4187,9 +4187,9 @@ fn static_assert() {
UniqueRefPtr::from_addrefed(Gecko_NewStyleQuoteValues(other.0.len() as u32))
};
for (servo, gecko) in other.0.into_iter().zip(refptr.mQuotePairs.iter_mut()) {
gecko.first.assign_str(&servo.0);
gecko.second.assign_str(&servo.1);
for (servo, gecko) in other.0.iter().zip(refptr.mQuotePairs.iter_mut()) {
gecko.first.assign_str(&servo.opening);
gecko.second.assign_str(&servo.closing);
}
self.gecko.mQuotes.set_move(refptr.get())
@ -4206,14 +4206,14 @@ fn static_assert() {
pub fn clone_quotes(&self) -> longhands::quotes::computed_value::T {
unsafe {
let ref gecko_quote_values = *self.gecko.mQuotes.mRawPtr;
longhands::quotes::computed_value::T(
longhands::quotes::computed_value::T(Arc::new(
gecko_quote_values.mQuotePairs.iter().map(|gecko_pair| {
(
gecko_pair.first.to_string().into_boxed_str(),
gecko_pair.second.to_string().into_boxed_str(),
)
values::specified::QuotePair {
opening: gecko_pair.first.to_string().into_boxed_str(),
closing: gecko_pair.second.to_string().into_boxed_str(),
}
}).collect::<Vec<_>>().into_boxed_slice()
)
))
}
}

36
components/style/values/computed/list.rs
View file

@ -6,26 +6,30 @@
#[cfg(feature = "gecko")]
pub use values::specified::list::ListStyleType;
pub use values::specified::list::Quotes;
pub use values::specified::list::{QuotePair, Quotes};
use servo_arc::Arc;
use values::specified::list::QuotePair;
lazy_static! {
static ref INITIAL_QUOTES: Arc<Box<[QuotePair]>> = Arc::new(
vec![
QuotePair {
opening: "\u{201c}".to_owned().into_boxed_str(),
closing: "\u{201d}".to_owned().into_boxed_str(),
},
QuotePair {
opening: "\u{2018}".to_owned().into_boxed_str(),
closing: "\u{2019}".to_owned().into_boxed_str(),
},
].into_boxed_slice()
);
}
impl Quotes {
/// Initial value for `quotes`.
///
/// FIXME(emilio): This should ideally not allocate.
#[inline]
pub fn get_initial_value() -> Quotes {
Quotes(
vec![
(
"\u{201c}".to_owned().into_boxed_str(),
"\u{201d}".to_owned().into_boxed_str(),
),
(
"\u{2018}".to_owned().into_boxed_str(),
"\u{2019}".to_owned().into_boxed_str(),
),
]
.into_boxed_slice(),
)
Quotes(INITIAL_QUOTES.clone())
}
}

2
components/style/values/computed/mod.rs
View file

@ -69,7 +69,7 @@ pub use self::length::{LengthOrPercentageOrAuto, LengthOrPercentageOrNone, MaxLe
pub use self::length::{NonNegativeLengthOrPercentage, NonNegativeLengthOrPercentageOrAuto};
#[cfg(feature = "gecko")]
pub use self::list::ListStyleType;
pub use self::list::Quotes;
pub use self::list::{QuotePair, Quotes};
pub use self::motion::OffsetPath;
pub use self::outline::OutlineStyle;
pub use self::percentage::{NonNegativePercentage, Percentage};

62
components/style/values/specified/list.rs
View file

@ -6,8 +6,8 @@
use cssparser::{Parser, Token};
use parser::{Parse, ParserContext};
use std::fmt::{self, Write};
use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
use servo_arc::Arc;
use style_traits::{ParseError, StyleParseErrorKind};
#[cfg(feature = "gecko")]
use values::generics::CounterStyleOrNone;
#[cfg(feature = "gecko")]
@ -73,41 +73,25 @@ impl Parse for ListStyleType {
}
}
/// Specified and computed `quote` property.
///
/// FIXME(emilio): It's a shame that this allocates all the time it's computed,
/// probably should just be refcounted.
/// FIXME This can probably derive ToCss.
#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue)]
pub struct Quotes(#[css(if_empty = "none")] pub Box<[(Box<str>, Box<str>)]>);
/// A quote pair.
#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss)]
pub struct QuotePair {
/// The opening quote.
pub opening: Box<str>,
impl ToCss for Quotes {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
where
W: Write,
{
let mut iter = self.0.iter();
match iter.next() {
Some(&(ref l, ref r)) => {
l.to_css(dest)?;
dest.write_char(' ')?;
r.to_css(dest)?;
},
None => return dest.write_str("none"),
}
for &(ref l, ref r) in iter {
dest.write_char(' ')?;
l.to_css(dest)?;
dest.write_char(' ')?;
r.to_css(dest)?;
}
Ok(())
}
/// The closing quote.
pub closing: Box<str>,
}
/// Specified and computed `quotes` property.
#[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss)]
pub struct Quotes(
#[css(if_empty = "none")]
#[css(iterable)]
#[ignore_malloc_size_of = "Arc"]
pub Arc<Box<[QuotePair]>>
);
impl Parse for Quotes {
fn parse<'i, 't>(
_: &ParserContext,
@ -117,24 +101,24 @@ impl Parse for Quotes {
.try(|input| input.expect_ident_matching("none"))
.is_ok()
{
return Ok(Quotes(Vec::new().into_boxed_slice()));
return Ok(Quotes(Arc::new(Box::new([]))));
}
let mut quotes = Vec::new();
loop {
let location = input.current_source_location();
let first = match input.next() {
let opening = match input.next() {
Ok(&Token::QuotedString(ref value)) => value.as_ref().to_owned().into_boxed_str(),
Ok(t) => return Err(location.new_unexpected_token_error(t.clone())),
Err(_) => break,
};
let second = input.expect_string()?.as_ref().to_owned().into_boxed_str();
quotes.push((first, second))
let closing = input.expect_string()?.as_ref().to_owned().into_boxed_str();
quotes.push(QuotePair { opening, closing });
}
if !quotes.is_empty() {
Ok(Quotes(quotes.into_boxed_slice()))
Ok(Quotes(Arc::new(quotes.into_boxed_slice())))
} else {
Err(input.new_custom_error(StyleParseErrorKind::UnspecifiedError))
}

2
components/style/values/specified/mod.rs
View file

@ -63,7 +63,7 @@ pub use self::length::{NoCalcLength, ViewportPercentageLength};
pub use self::length::{NonNegativeLengthOrPercentage, NonNegativeLengthOrPercentageOrAuto};
#[cfg(feature = "gecko")]
pub use self::list::ListStyleType;
pub use self::list::Quotes;
pub use self::list::{QuotePair, Quotes};
pub use self::motion::OffsetPath;
pub use self::outline::OutlineStyle;
pub use self::percentage::Percentage;