winit/src/platform_impl/linux/x11/util/memory.rs

use std::ops::{Deref, DerefMut};

use super::*;

pub(crate) struct XSmartPointer<'a, T> {
    xconn: &'a XConnection,
    pub ptr: *mut T,
}

impl<'a, T> Deref for XSmartPointer<'a, T> {
    type Target = T;

    fn deref(&self) -> &T {
        unsafe { &*self.ptr }
    }
}

impl<'a, T> DerefMut for XSmartPointer<'a, T> {
    fn deref_mut(&mut self) -> &mut T {
        unsafe { &mut *self.ptr }
    }
}

impl<'a, T> Drop for XSmartPointer<'a, T> {
    fn drop(&mut self) {
        unsafe {
            (self.xconn.xlib.XFree)(self.ptr as *mut _);
        }
    }
}