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style: Minor documentation tweaks about lazy pseudo-elements

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Emilio Cobos Álvarez 2016-05-03 19:01:20 +02:00
parent 028f9b6cd2
commit a87bf7c776
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2 changed files with 17 additions and 2 deletions
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12
components/layout/wrapper.rs
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@ -1341,6 +1341,18 @@ impl TextContent {
}
}
/// This implementation of `::selectors::Element` is used for implementing lazy
/// pseudo-elements.
///
/// Lazy pseudo-elements in Servo only allows selectors using safe properties,
/// i.e., local_name, attributes, so they can only be used for **private**
/// pseudo-elements (like `::-servo-details-content`).
///
/// Probably a few more of this functions can be implemented (like `has_class`,
/// `each_class`, etc), but they have no use right now.
///
/// Note that the element implementation is needed only for selector matching,
/// not for inheritance (styles are inherited appropiately).
impl <'le> ::selectors::Element for ServoThreadSafeLayoutElement<'le> {
type Impl = ServoSelectorImpl;