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style: Use the ? operator for Option

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This commit is contained in:
Matt Brubeck 2017-12-08 16:53:17 -08:00
parent c52d347022
commit 3005a26daf
13 changed files with 47 additions and 129 deletions
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20
components/style/rule_cache.rs
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@ -102,20 +102,16 @@ impl RuleCache {
return None;
}
let rules = match builder_with_early_props.rules {
Some(ref rules) => rules,
None => return None,
};
let rules = builder_with_early_props.rules.as_ref()?;
let cached_values = self.map.get(rules)?;
self.map.get(rules).and_then(|cached_values| {
for &(ref conditions, ref values) in cached_values.iter() {
if conditions.matches(builder_with_early_props) {
debug!("Using cached reset style with conditions {:?}", conditions);
return Some(&**values)
}
for &(ref conditions, ref values) in cached_values.iter() {
if conditions.matches(builder_with_early_props) {
debug!("Using cached reset style with conditions {:?}", conditions);
return Some(&**values)
}
None
})
}
None
}
/// Inserts a node into the rules cache if possible.