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style: Improve handling of copying arrays in layout/style/ and servo/.

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Differential Revision: https://phabricator.services.mozilla.com/D72351
This commit is contained in:
Simon Giesecke 2020-05-05 10:42:23 +00:00 • committed by Emilio Cobos Álvarez
parent 735fdedbe9
commit e6687c5fa8
1 changed files with 14 additions and 1 deletions
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15
components/style/gecko_bindings/sugar/ns_t_array.rs
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@ -5,7 +5,7 @@
//! Rust helpers for Gecko's nsTArray.
use crate::gecko_bindings::bindings;
use crate::gecko_bindings::structs::{nsTArray, nsTArrayHeader};
use crate::gecko_bindings::structs::{nsTArray, nsTArrayHeader, CopyableTArray};
use std::mem;
use std::ops::{Deref, DerefMut};
use std::slice;
@ -128,3 +128,16 @@ impl<T> nsTArray<T> {
self.iter_mut().zip(iter).for_each(|(r, v)| *r = v);
}
}
impl<T> Deref for CopyableTArray<T> {
type Target = nsTArray<T>;
fn deref(&self) -> &Self::Target {
&self._base
}
}
impl<T> DerefMut for CopyableTArray<T> {
fn deref_mut(&mut self) -> &mut nsTArray<T> {
&mut self._base
}
}