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servo: Merge #19981 - style: Derive ToCss for FontFamilyList (from emilio:nicer); r=nox
The extra reference in to_css is needed because the family list iterator returns by value in Gecko. Source-Repo: https://github.com/servo/servo Source-Revision: 10552c23fc6c81b37bcfcba8f35430fc8d6a0ea8 --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : 14ef251be1b3c52dc0e16d3ad29508c23e8279ca
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@ -165,9 +165,10 @@ impl From<LengthOrPercentage> for FontSize {
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}
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/// Specifies a prioritized list of font family names or generic family names.
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#[derive(Clone, Debug, Eq, Hash, PartialEq)]
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#[derive(Clone, Debug, Eq, Hash, PartialEq, ToCss)]
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pub enum FontFamily {
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/// List of `font-family`
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#[css(iterable, comma)]
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Values(FontFamilyList),
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/// System font
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System(SystemFont),
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@ -245,26 +246,6 @@ impl MallocSizeOf for FontFamily {
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}
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}
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impl ToCss for FontFamily {
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fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
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where
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W: Write,
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{
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match *self {
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FontFamily::Values(ref v) => {
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let mut iter = v.iter();
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iter.next().unwrap().to_css(dest)?;
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for family in iter {
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dest.write_str(", ")?;
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family.to_css(dest)?;
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}
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Ok(())
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}
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FontFamily::System(sys) => sys.to_css(dest),
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}
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}
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}
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impl Parse for FontFamily {
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/// <family-name>#
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/// <family-name> = <string> | [ <ident>+ ]
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@ -44,7 +44,7 @@ pub fn derive(input: DeriveInput) -> Tokens {
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#expr
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for item in #binding.iter() {
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writer.item(item)?;
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writer.item(&item)?;
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}
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};
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} else {
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