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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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14
components/style/values/computed/inherited_box.rs
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@ -4,8 +4,8 @@
//! Computed values for inherited box
use std::fmt;
use style_traits::ToCss;
use std::fmt::{self, Write};
use style_traits::{CssWriter, ToCss};
use values::specified::Angle;
/// An angle rounded and normalized per https://drafts.csswg.org/css-images/#propdef-image-orientation
@ -31,7 +31,10 @@ impl Orientation {
}
impl ToCss for Orientation {
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,
{
// Should agree with Angle::to_css.
match *self {
Orientation::Angle0 => dest.write_str("0deg"),
@ -60,7 +63,10 @@ impl ImageOrientation {
}
impl ToCss for ImageOrientation {
fn to_css<W: fmt::Write>(&self, dest: &mut W) -> fmt::Result {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
where
W: Write,
{
match *self {
ImageOrientation::FromImage => dest.write_str("from-image"),
ImageOrientation::AngleWithFlipped(angle, flipped) => {