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Fix revalidation selectors when pseudo-elements are involved.

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Boris Zbarsky 2017-06-08 01:19:50 -04:00
parent 24e944ad94
commit 537cf52707
3 changed files with 60 additions and 9 deletions
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8
components/style/sharing/mod.rs
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@ -61,10 +61,10 @@
//! the up-front checks but would have different matching results for the
//! selector in question. In this case, "descendants" includes pseudo-elements,
//! so there is a single selector map of revalidation selectors that includes
//! both selectors targeting element and selectors targeting pseudo-elements.
//! This relies on matching an element against a pseudo-element-targeting
//! selector being a sensible operation that will effectively check whether that
//! element is a matching originating element for the selector.
//! both selectors targeting elements and selectors targeting pseudo-element
//! originating elements. We ensure that the pseudo-element parts of all these
//! selectors are effectively stripped off, so that matching them all against
//! elements makes sense.
use Atom;
use bit_vec::BitVec;