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Implement nsStyleAutoArray.ensure_len(). r=heycam

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Hiroyuki Ikezoe 2017-01-06 19:55:31 +09:00 • committed by Hiroyuki Ikezoe
parent dc3b4803d1
commit 98ed440597
1 changed files with 9 additions and 0 deletions
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9
components/style/gecko_bindings/sugar/ns_style_auto_array.rs
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@ -4,6 +4,7 @@
//! Rust helpers for Gecko's `nsStyleAutoArray`. //! Rust helpers for Gecko's `nsStyleAutoArray`.
use gecko_bindings::bindings::Gecko_EnsureStyleAnimationArrayLength;
use gecko_bindings::structs::nsStyleAutoArray; use gecko_bindings::structs::nsStyleAutoArray;
use std::iter::{once, Chain, Once, IntoIterator}; use std::iter::{once, Chain, Once, IntoIterator};
use std::ops::Index; use std::ops::Index;
@ -40,6 +41,14 @@ impl<T> nsStyleAutoArray<T> {
pub fn len(&self) -> usize { pub fn len(&self) -> usize {
1 + self.mOtherElements.len() 1 + self.mOtherElements.len()
} }
/// Ensures that the array has length at least the given length.
pub fn ensure_len(&mut self, len: usize) {
unsafe {
Gecko_EnsureStyleAnimationArrayLength(self as *mut nsStyleAutoArray<T> as *mut _,
len);
}
}
} }
impl<'a, T> IntoIterator for &'a mut nsStyleAutoArray<T> { impl<'a, T> IntoIterator for &'a mut nsStyleAutoArray<T> {