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/// A light scoped wrapper over a raw *mut pointer.
///
/// Implements destruction of the pointer when it goes out of scope, but provides no other
/// guarantees.
#[non_exhaustive]
pub struct Scoped<T> {
pub ptr: *mut T,
destructor: fn(*mut T),
}
// Could use
// https://doc.rust-lang.org/std/alloc/trait.Allocator.html with box (in nightly only)
// or
// https://docs.rs/scopeguard/latest/scopeguard/
// instead
impl<T> Scoped<T> {
pub unsafe fn new(ptr: *mut T, destructor: fn(*mut T)) -> Scoped<T> {
Scoped { ptr, destructor }
// https://doc.rust-lang.org/nomicon/destructors.html
impl<T> Drop for Scoped<T> {
fn drop(&mut self) {
(self.destructor)(self.ptr);