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script: Make layout DOM wrappers not generic on layout data (#31994)

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Remove the type parameter from the layout DOM wrappers. This is possible
now that style and layout data are separate and the `Any` nature of the
layout data is exposed in the wrappers.

Removing the phantom data member of the wrappers also allows using the
default `derive` implementations for things like `Clone`, `Copy`, and
`PartialEq`.
This commit is contained in:
Martin Robinson 2024-04-04 13:34:35 +02:00 • committed by GitHub
parent df457c43c8
commit 24c3a2df1e
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GPG key ID: B5690EEEBB952194
6 changed files with 105 additions and 281 deletions
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35
components/script/layout_dom/document.rs
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@ -2,9 +2,6 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use std::marker::PhantomData;
use script_layout_interface::wrapper_traits::LayoutDataTrait;
use selectors::matching::QuirksMode;
use style::dom::{TDocument, TNode};
use style::shared_lock::{
@ -18,25 +15,14 @@ use crate::dom::node::{LayoutNodeHelpers, Node, NodeFlags};
use crate::layout_dom::{ServoLayoutElement, ServoLayoutNode, ServoShadowRoot};
// A wrapper around documents that ensures ayout can only ever access safe properties.
pub struct ServoLayoutDocument<'dom, LayoutDataType: LayoutDataTrait> {
#[derive(Clone, Copy)]
pub struct ServoLayoutDocument<'dom> {
/// The wrapped private DOM Document
document: LayoutDom<'dom, Document>,
/// A PhantomData that is used to track the type of the stored layout data.
phantom: PhantomData<LayoutDataType>,
}
impl<'dom, LayoutDataType: LayoutDataTrait> Clone for ServoLayoutDocument<'dom, LayoutDataType> {
fn clone(&self) -> Self {
*self
}
}
impl<'dom, LayoutDataType: LayoutDataTrait> Copy for ServoLayoutDocument<'dom, LayoutDataType> {}
impl<'ld, LayoutDataType: LayoutDataTrait> ::style::dom::TDocument
for ServoLayoutDocument<'ld, LayoutDataType>
{
type ConcreteNode = ServoLayoutNode<'ld, LayoutDataType>;
impl<'ld> ::style::dom::TDocument for ServoLayoutDocument<'ld> {
type ConcreteNode = ServoLayoutNode<'ld>;
fn as_node(&self) -> Self::ConcreteNode {
ServoLayoutNode::from_layout_js(self.document.upcast())
@ -55,8 +41,8 @@ impl<'ld, LayoutDataType: LayoutDataTrait> ::style::dom::TDocument
}
}
impl<'ld, LayoutDataType: LayoutDataTrait> ServoLayoutDocument<'ld, LayoutDataType> {
pub fn root_element(&self) -> Option<ServoLayoutElement<'ld, LayoutDataType>> {
impl<'ld> ServoLayoutDocument<'ld> {
pub fn root_element(&self) -> Option<ServoLayoutElement<'ld>> {
self.as_node()
.dom_children()
.flat_map(|n| n.as_element())
@ -75,7 +61,7 @@ impl<'ld, LayoutDataType: LayoutDataTrait> ServoLayoutDocument<'ld, LayoutDataTy
self.document.style_shared_lock()
}
pub fn shadow_roots(&self) -> Vec<ServoShadowRoot<LayoutDataType>> {
pub fn shadow_roots(&self) -> Vec<ServoShadowRoot> {
unsafe {
self.document
.shadow_roots()
@ -104,10 +90,7 @@ impl<'ld, LayoutDataType: LayoutDataTrait> ServoLayoutDocument<'ld, LayoutDataTy
}
}
pub fn from_layout_js(doc: LayoutDom<'ld, Document>) -> Self {
ServoLayoutDocument {
document: doc,
phantom: PhantomData,
}
pub fn from_layout_js(document: LayoutDom<'ld, Document>) -> Self {
ServoLayoutDocument { document }
}
}