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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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4
components/style/stylesheets/media_rule.rs
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@ -14,7 +14,7 @@ use servo_arc::Arc;
use shared_lock::{DeepCloneParams, DeepCloneWithLock, Locked, SharedRwLock, SharedRwLockReadGuard, ToCssWithGuard};
use std::fmt::{self, Write};
use str::CssStringWriter;
use style_traits::ToCss;
use style_traits::{CssWriter, ToCss};
use stylesheets::CssRules;
/// An [`@media`][media] urle.
@ -45,7 +45,7 @@ impl ToCssWithGuard for MediaRule {
// https://drafts.csswg.org/cssom/#serialize-a-css-rule CSSMediaRule
fn to_css(&self, guard: &SharedRwLockReadGuard, dest: &mut CssStringWriter) -> fmt::Result {
dest.write_str("@media ")?;
self.media_queries.read_with(guard).to_css(dest)?;
self.media_queries.read_with(guard).to_css(&mut CssWriter::new(dest))?;
self.rules.read_with(guard).to_css_block(guard, dest)
}
}