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#[derive(Default, Debug, Clone)]
pub struct CssRules(pub Vec<CssRule>);
impl ToCss for CssRules
{
fn to_css<W: fmt::Write>(&self, dest: &mut W) -> fmt::Result
{
for cssRule in self.0.iter()
{
cssRule.to_css(dest)?;
}
Ok(())
}
}
impl HasCssRules for CssRules
{
#[inline(always)]
fn css_rules(&self) -> &CssRules
{
self
}
#[inline(always)]
fn css_rules_mut(&mut self) -> &mut CssRules
{
self
}
#[inline(always)]
fn css_rules_slice(&self) -> &[CssRule]
{
&self.0[..]
}
#[inline(always)]
fn css_rules_vec(&self) -> &Vec<CssRule>
{
&self.0
}
#[inline(always)]
fn css_rules_vec_mut(&mut self) -> &mut Vec<CssRule>
{
&mut self.0
}
}
impl CssRules
{
#[inline(always)]
pub fn vendor_prefix_at_rules<AtRule: VendorPrefixedAtRule, CssRuleMatcher: Fn(&CssRule) -> Option<&AtRule>, VendorPrefixer: Fn(usize, &AtRule) -> Vec<CssRule>>(&mut self, remove_unprefixed_at_rule: bool, css_rule_matcher: CssRuleMatcher, vendor_prefixer: VendorPrefixer)
{
let mut index = 0;
while index < self.0.len()
{
let newCssRulesToInsert = match css_rule_matcher(unsafe { &self.0.get_unchecked(index) })
{
None => None,
Some(atRule) => if atRule.isNotVendorPrefixed()
{
Some(vendor_prefixer(index, atRule))
}
else
{
None
},
};
index += if let Some(mut newCssRulesToInsert) = newCssRulesToInsert
{
let indexIncrement = newCssRulesToInsert.len();
for newCssRuleToInsert in newCssRulesToInsert.drain(..)
{
self.css_rules_vec_mut().insert(index, newCssRuleToInsert);
}
if remove_unprefixed_at_rule
{
self.css_rules_vec_mut().remove(index + indexIncrement);
indexIncrement
}
else
{
indexIncrement + 1
}
}
else
{
1
};
}
}
pub fn is_empty(&self) -> bool
{
self.0.is_empty()
}
fn only_namespace_or_import(&self) -> bool
{
use self::CssRule::*;
self.0.iter().all(|r|
{
match *r
{
Namespace(..) | Import(..) => true,
_ => false
}
})
}
pub fn remove_rule(&mut self, index: usize) -> Result<(), RulesMutateError>
{
use self::CssRule::Namespace;
use self::RulesMutateError::*;
if index >= self.0.len()
{
return Err(IndexSize);
}
{
let ref rule = self.0[index];
if let Namespace(..) = *rule
{
if !self.only_namespace_or_import()
{
return Err(InvalidState);
}
}
}
self.0.remove(index);
Ok(())
}
}