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Replace the LayoutDataAccess trait by inherent methods.

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This commit is contained in:
Ms2ger 2015-06-22 11:34:31 +02:00
parent 167a396293
commit a42e11a95f
6 changed files with 29 additions and 43 deletions
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40
components/layout/data.rs
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@ -2,19 +2,14 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#![allow(unsafe_code)]
use construct::{ConstructionItem, ConstructionResult};
use incremental::RestyleDamage;
use msg::constellation_msg::ConstellationChan;
use parallel::DomParallelInfo;
use script::dom::node::{LayoutNodeHelpers, SharedLayoutData};
use script::dom::node::SharedLayoutData;
use script::layout_interface::LayoutChan;
use std::cell::{Ref, RefMut};
use std::mem;
use std::sync::Arc;
use style::properties::ComputedValues;
use wrapper::LayoutNode;
/// Data that layout associates with a node.
pub struct PrivateLayoutData {
@ -95,41 +90,10 @@ impl LayoutDataWrapper {
}
}
#[allow(dead_code)]
#[allow(dead_code, unsafe_code)]
fn static_assertion(x: Option<LayoutDataWrapper>) {
unsafe {
let _: Option<::script::dom::node::LayoutData> =
::std::intrinsics::transmute(x);
}
}
/// A trait that allows access to the layout data of a DOM node.
pub trait LayoutDataAccess {
/// Borrows the layout data without checks.
unsafe fn borrow_layout_data_unchecked(&self) -> *const Option<LayoutDataWrapper>;
/// Borrows the layout data immutably. Fails on a conflicting borrow.
fn borrow_layout_data<'a>(&'a self) -> Ref<'a,Option<LayoutDataWrapper>>;
/// Borrows the layout data mutably. Fails on a conflicting borrow.
fn mutate_layout_data<'a>(&'a self) -> RefMut<'a,Option<LayoutDataWrapper>>;
}
impl<'ln> LayoutDataAccess for LayoutNode<'ln> {
#[inline(always)]
unsafe fn borrow_layout_data_unchecked(&self) -> *const Option<LayoutDataWrapper> {
mem::transmute(self.get_jsmanaged().layout_data_unchecked())
}
#[inline(always)]
fn borrow_layout_data<'a>(&'a self) -> Ref<'a,Option<LayoutDataWrapper>> {
unsafe {
mem::transmute(self.get_jsmanaged().layout_data())
}
}
#[inline(always)]
fn mutate_layout_data<'a>(&'a self) -> RefMut<'a,Option<LayoutDataWrapper>> {
unsafe {
mem::transmute(self.get_jsmanaged().layout_data_mut())
}
}
}