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 _); } } }