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Allow vector properties to be set by iterator

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This commit is contained in:
Manish Goregaokar 2017-05-03 16:06:08 -07:00
parent dd3159f2f5
commit 33fb27c765
4 changed files with 174 additions and 78 deletions
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7
components/style/values/computed/mod.rs
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@ -101,6 +101,7 @@ impl<'a> Context<'a> {
}
/// An iterator over a slice of computed values
#[derive(Clone)]
pub struct ComputedVecIter<'a, 'cx, 'cx_a: 'cx, S: ToComputedValue + 'a> {
cx: &'cx Context<'cx_a>,
values: &'a [S],
@ -116,6 +117,12 @@ impl<'a, 'cx, 'cx_a: 'cx, S: ToComputedValue + 'a> ComputedVecIter<'a, 'cx, 'cx_
}
}
impl<'a, 'cx, 'cx_a: 'cx, S: ToComputedValue + 'a> ExactSizeIterator for ComputedVecIter<'a, 'cx, 'cx_a, S> {
fn len(&self) -> usize {
self.values.len()
}
}
impl<'a, 'cx, 'cx_a: 'cx, S: ToComputedValue + 'a> Iterator for ComputedVecIter<'a, 'cx, 'cx_a, S> {
type Item = S::ComputedValue;
fn next(&mut self) -> Option<Self::Item> {