Change ToCss to take a CssWriter<W>

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

View file

@ -22,7 +22,8 @@ use selectors::parser::SelectorParseErrorKind;
use shared_lock::{SharedRwLockReadGuard, ToCssWithGuard};
use std::fmt::{self, Write};
use str::CssStringWriter;
use style_traits::{Comma, OneOrMoreSeparated, ParseError, StyleParseErrorKind, ToCss};
use style_traits::{Comma, CssWriter, OneOrMoreSeparated, ParseError};
use style_traits::{StyleParseErrorKind, ToCss};
use values::computed::font::FamilyName;
use values::specified::url::SpecifiedUrl;
@ -55,8 +56,9 @@ pub struct UrlSource {
}
impl ToCss for UrlSource {
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,
{
self.url.to_css(dest)
}
@ -278,7 +280,7 @@ macro_rules! font_face_descriptors_common {
$(
if let Some(ref value) = self.$ident {
dest.write_str(concat!(" ", $name, ": "))?;
ToCss::to_css(value, dest)?;
ToCss::to_css(value, &mut CssWriter::new(dest))?;
dest.write_str(";\n")?;
}
)*