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Change ToCss to take a CssWriter<W>

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This more concrete wrapper type can write a prefix the very first time something
is written to it. This allows removing plenty of useless monomorphisations caused
by the former W/SequenceWriter<W> pair of types.
This commit is contained in:
Anthony Ramine 2018-01-22 19:58:01 +01:00
parent 3672856efa
commit cd8f96cc9e
89 changed files with 873 additions and 533 deletions
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18
components/style/values/specified/box.rs
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@ -8,8 +8,8 @@ use Atom;
use cssparser::Parser;
use parser::{Parse, ParserContext};
use selectors::parser::SelectorParseErrorKind;
use std::fmt;
use style_traits::{ParseError, ToCss, StyleParseErrorKind};
use std::fmt::{self, Write};
use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
use values::CustomIdent;
use values::KeyframesName;
use values::generics::box_::AnimationIterationCount as GenericAnimationIterationCount;
@ -289,9 +289,9 @@ impl AnimationName {
}
impl ToCss for AnimationName {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
where
W: fmt::Write,
W: Write,
{
match self.0 {
Some(ref name) => name.to_css(dest),
@ -407,7 +407,10 @@ impl TouchAction {
}
impl ToCss for TouchAction {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
where
W: Write,
{
match *self {
TouchAction::TOUCH_ACTION_NONE => dest.write_str("none"),
TouchAction::TOUCH_ACTION_AUTO => dest.write_str("auto"),
@ -497,7 +500,10 @@ bitflags! {
}
impl ToCss for Contain {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
where
W: Write,
{
if self.is_empty() {
return dest.write_str("none")
}