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#![no_std]
#![warn(missing_docs)]
#![cfg_attr(feature = "cargo-clippy", allow(clippy::style))]
#[cfg(feature = "alloc")]
extern crate alloc;
pub trait Deleter {
fn delete<T>(&mut self, ptr: *mut u8);
}
impl Deleter for () {
#[inline(always)]
fn delete<T>(&mut self, _: *mut u8) {}
}
impl Deleter for unsafe extern "C" fn(*mut u8) {
#[inline(always)]
fn delete<T>(&mut self, ptr: *mut u8) {
unsafe {
(*self)(ptr)
}
}
}
impl Deleter for unsafe fn(*mut u8) {
#[inline(always)]
fn delete<T>(&mut self, ptr: *mut u8) {
unsafe {
(*self)(ptr)
}
}
}
impl<F: FnMut(*mut u8)> Deleter for F {
#[inline(always)]
fn delete<T>(&mut self, ptr: *mut u8) {
(*self)(ptr)
}
}
#[cfg(feature = "alloc")]
pub unsafe fn boxed_deleter<T>(ptr: *mut u8) {
debug_assert!(!ptr.is_null());
alloc::boxed::Box::from_raw(ptr as *mut T);
}
#[derive(Default)]
pub struct DefaultDeleter;
#[cfg(feature = "alloc")]
impl Deleter for DefaultDeleter {
#[inline]
fn delete<T>(&mut self, ptr: *mut u8) {
unsafe {
boxed_deleter::<T>(ptr)
}
}
}
pub mod unique;
pub use unique::Unique;