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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/basic_shape.rs
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@ -7,8 +7,8 @@
//!
//! [basic-shape]: https://drafts.csswg.org/css-shapes/#typedef-basic-shape
use std::fmt;
use style_traits::ToCss;
use std::fmt::{self, Write};
use style_traits::{CssWriter, ToCss};
use values::computed::{LengthOrPercentage, ComputedUrl, Image};
use values::generics::basic_shape::{BasicShape as GenericBasicShape};
use values::generics::basic_shape::{Circle as GenericCircle, ClippingShape as GenericClippingShape};
@ -37,7 +37,10 @@ pub type Ellipse = GenericEllipse<LengthOrPercentage, LengthOrPercentage, Length
pub type ShapeRadius = GenericShapeRadius<LengthOrPercentage>;
impl ToCss for Circle {
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("circle(")?;
self.radius.to_css(dest)?;
dest.write_str(" at ")?;
@ -47,7 +50,10 @@ impl ToCss for Circle {
}
impl ToCss for Ellipse {
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("ellipse(")?;
if (self.semiaxis_x, self.semiaxis_y) != Default::default() {
self.semiaxis_x.to_css(dest)?;