components/layout_2020/wrapper.rs


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/* This Source Code Form is subject to the terms of the Mozilla Public
 * 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/. */

#![allow(unsafe_code)]

use crate::data::StyleAndLayoutData;
use script_layout_interface::wrapper_traits::GetLayoutData;

pub trait GetRawData {
    fn get_raw_data(&self) -> Option<&StyleAndLayoutData>;
}

impl<'dom, T> GetRawData for T
where
    T: GetLayoutData<'dom>,
{
    fn get_raw_data(&self) -> Option<&StyleAndLayoutData> {
        self.get_style_and_layout_data().map(|opaque| {
            let container = opaque.ptr.as_ptr() as *mut StyleAndLayoutData;
            unsafe { &*container }
        })
    }
}