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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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24
components/style/values/specified/mod.rs
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@ -13,8 +13,8 @@ use parser::{ParserContext, Parse};
use self::url::SpecifiedUrl;
#[allow(unused_imports)] use std::ascii::AsciiExt;
use std::f32;
use std::fmt;
use style_traits::{ToCss, ParseError, StyleParseErrorKind};
use std::fmt::{self, Write};
use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
use style_traits::values::specified::AllowedNumericType;
use super::{Auto, CSSFloat, CSSInteger, Either, None_};
use super::computed::{Context, ToComputedValue};
@ -250,8 +250,9 @@ impl ToComputedValue for Number {
}
impl ToCss for Number {
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.calc_clamping_mode.is_some() {
dest.write_str("calc(")?;
@ -476,8 +477,9 @@ impl ToComputedValue for Integer {
}
impl ToCss for Integer {
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.was_calc {
dest.write_str("calc(")?;
@ -560,7 +562,10 @@ 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(ref top) = self.top {
@ -805,7 +810,10 @@ impl Attr {
}
impl ToCss for Attr {
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("attr(")?;
if let Some(ref ns) = self.namespace {
serialize_identifier(&ns.0.to_string(), dest)?;