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2366a8bf9e
There is a new default cargo clippy lint, `unsafe_op_in_unsafe_fn`, which requires unsafe code to be wrapped in unsafe blocks, even inside functions marked as unsafe. The lint is disabled as much of our code doesn't fulfill this contract. The thing itself is pretty useful in order to gradually remove unsafety, so this change starts adding `unsafe` blocks so we can eventually enable this lint. Testing: This doesn't change behavior so existings tests should suffice. Fixes: This is part of #35955. Signed-off-by: Martin Robinson <mrobinson@igalia.com>
67 lines
2 KiB
Rust
67 lines
2 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use std::fmt;
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use style::dom::TShadowRoot;
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use style::shared_lock::SharedRwLockReadGuard as StyleSharedRwLockReadGuard;
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use style::stylist::{CascadeData, Stylist};
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use crate::dom::bindings::root::LayoutDom;
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use crate::dom::shadowroot::{LayoutShadowRootHelpers, ShadowRoot};
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use crate::layout_dom::{ServoLayoutElement, ServoLayoutNode};
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#[derive(Clone, Copy, PartialEq)]
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pub struct ServoShadowRoot<'dom> {
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/// The wrapped private DOM ShadowRoot.
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shadow_root: LayoutDom<'dom, ShadowRoot>,
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}
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impl fmt::Debug for ServoShadowRoot<'_> {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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self.as_node().fmt(f)
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}
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}
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impl<'dom> TShadowRoot for ServoShadowRoot<'dom> {
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type ConcreteNode = ServoLayoutNode<'dom>;
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fn as_node(&self) -> Self::ConcreteNode {
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ServoLayoutNode::from_layout_js(self.shadow_root.upcast())
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}
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fn host(&self) -> ServoLayoutElement<'dom> {
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ServoLayoutElement::from_layout_js(self.shadow_root.get_host_for_layout())
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}
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fn style_data<'a>(&self) -> Option<&'a CascadeData>
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where
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Self: 'a,
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{
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Some(self.shadow_root.get_style_data_for_layout())
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}
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}
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impl<'dom> ServoShadowRoot<'dom> {
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pub(super) fn from_layout_js(shadow_root: LayoutDom<'dom, ShadowRoot>) -> Self {
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ServoShadowRoot { shadow_root }
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}
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/// Flush the stylesheets for the underlying shadow root.
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///
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/// # Safety
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///
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/// This modifies a DOM object, so should care should be taken that only one
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/// thread has a reference to this object.
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pub unsafe fn flush_stylesheets(
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&self,
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stylist: &mut Stylist,
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guard: &StyleSharedRwLockReadGuard,
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) {
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unsafe {
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self.shadow_root
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.flush_stylesheets::<ServoLayoutElement>(stylist, guard)
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}
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}
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}
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