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Measure selectors.

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This patch adds measurement of Selectors within StyleRule. This requires
exposing the pointer within ThinArc.

The patch also adds measurement of the several CssRule variants, in order to
measure nested CssRules (and PropertyDeclarationBlocks) within them:
DocumentRule, MediaRule, PageRule, SupportsRule.
This commit is contained in:
Nicholas Nethercote 2017-09-07 13:24:40 +10:00
parent 812cac78f0
commit 61877b7316
8 changed files with 95 additions and 15 deletions
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35
components/style/stylesheets/mod.rs
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@ -116,21 +116,40 @@ impl MallocSizeOfWithGuard for CssRule {
malloc_size_of: MallocSizeOfFn
) -> usize {
match *self {
// Not all fields are currently fully measured. Extra measurement
// may be added later.
CssRule::Namespace(_) => 0,
// We don't need to measure ImportRule::stylesheet because we measure
// it on the C++ side in the child list of the ServoStyleSheet.
CssRule::Import(_) => 0,
CssRule::Style(ref lock) => {
lock.read_with(guard).malloc_size_of_children(guard, malloc_size_of)
},
// Measurement of these fields may be added later.
CssRule::Import(_) => 0,
CssRule::Media(_) => 0,
CssRule::Media(ref lock) => {
lock.read_with(guard).malloc_size_of_children(guard, malloc_size_of)
},
CssRule::FontFace(_) => 0,
CssRule::FontFeatureValues(_) => 0,
CssRule::CounterStyle(_) => 0,
CssRule::Keyframes(_) => 0,
CssRule::Namespace(_) => 0,
CssRule::Viewport(_) => 0,
CssRule::Supports(_) => 0,
CssRule::Page(_) => 0,
CssRule::Document(_) => 0,
CssRule::Keyframes(_) => 0,
CssRule::Supports(ref lock) => {
lock.read_with(guard).malloc_size_of_children(guard, malloc_size_of)
},
CssRule::Page(ref lock) => {
lock.read_with(guard).malloc_size_of_children(guard, malloc_size_of)
},
CssRule::Document(ref lock) => {
lock.read_with(guard).malloc_size_of_children(guard, malloc_size_of)
},
}
}
}