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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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15
components/style/values/computed/mod.rs
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@ -15,11 +15,12 @@ use properties::{ComputedValues, LonghandId, StyleBuilder};
use rule_cache::RuleCacheConditions;
#[cfg(feature = "servo")]
use servo_url::ServoUrl;
use std::{f32, fmt};
use std::cell::RefCell;
use std::f32;
use std::fmt::{self, Write};
#[cfg(feature = "servo")]
use std::sync::Arc;
use style_traits::ToCss;
use style_traits::{CssWriter, ToCss};
use style_traits::cursor::CursorKind;
use super::{CSSFloat, CSSInteger};
use super::generics::{GreaterThanOrEqualToOne, NonNegative};
@ -531,7 +532,10 @@ pub struct ClipRect {
}
impl ToCss for ClipRect {
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,
{
dest.write_str("rect(")?;
if let Some(top) = self.top {
top.to_css(dest)?;
@ -627,7 +631,10 @@ impl ComputedUrl {
#[cfg(feature = "servo")]
impl ToCss for ComputedUrl {
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,
{
let string = match *self {
ComputedUrl::Valid(ref url) => url.as_str(),
ComputedUrl::Invalid(ref invalid_string) => invalid_string,