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Remove some unused StackingContextId methods.

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Ms2ger 2017-01-04 11:47:02 +01:00
parent 1c614aedd3
commit 0b5dc7ed34
1 changed files with 0 additions and 26 deletions
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26
components/gfx_traits/lib.rs
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@ -128,37 +128,11 @@ impl StackingContextId {
}
}
/// Returns an ID for the stacking context that forms the outer stacking context of an element
/// with `overflow: scroll`.
#[inline(always)]
pub fn new_outer(fragment_type: FragmentType) -> StackingContextId {
StackingContextId(StackingContextId::next_special_id() | (fragment_type as usize))
}
#[inline]
pub fn fragment_type(&self) -> FragmentType {
FragmentType::from_usize(self.0 & 3)
}
#[inline]
pub fn id(&self) -> usize {
self.0 & !3
}
/// Returns the stacking context ID for the outer document/layout root.
#[inline]
pub fn root() -> StackingContextId {
StackingContextId(0)
}
/// Returns true if this is a special stacking context.
///
/// A special stacking context is a stacking context that is one of (a) the outer stacking
/// context of an element with `overflow: scroll`; (b) generated content; (c) both (a) and (b).
#[inline]
pub fn is_special(&self) -> bool {
(self.0 & !SPECIAL_STACKING_CONTEXT_ID_MASK) == 0
}
}
/// A unique ID for every scrolling root.