bjoernager/rust
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remove box_free and replace with drop impl

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This commit is contained in:
DrMeepster 2022-08-01 13:51:58 -07:00
parent 0966f3202d
commit a5c6cb888e
17 changed files with 91 additions and 146 deletions
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7
library/alloc/src/alloc.rs
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@ -4,8 +4,10 @@
#[cfg(not(test))]
use core::intrinsics;
#[cfg(all(bootstrap, not(test)))]
use core::intrinsics::{min_align_of_val, size_of_val};
#[cfg(all(bootstrap, not(test)))]
use core::ptr::Unique;
#[cfg(not(test))]
use core::ptr::{self, NonNull};
@ -335,14 +337,15 @@ unsafe fn exchange_malloc(size: usize, align: usize) -> *mut u8 {
}
}
#[cfg_attr(not(test), lang = "box_free")]
#[cfg(all(bootstrap, not(test)))]
#[lang = "box_free"]
#[inline]
// This signature has to be the same as `Box`, otherwise an ICE will happen.
// When an additional parameter to `Box` is added (like `A: Allocator`), this has to be added here as
// well.
// For example if `Box` is changed to `struct Box<T: ?Sized, A: Allocator>(Unique<T>, A)`,
// this function has to be changed to `fn box_free<T: ?Sized, A: Allocator>(Unique<T>, A)` as well.
pub(crate) unsafe fn box_free<T: ?Sized, A: Allocator>(ptr: Unique<T>, alloc: A) {
unsafe fn box_free<T: ?Sized, A: Allocator>(ptr: Unique<T>, alloc: A) {
unsafe {
let size = size_of_val(ptr.as_ref());
let align = min_align_of_val(ptr.as_ref());