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std: Remove bump_box_refcount. Deprecated and unused. Deprecused.

This commit is contained in:
Brian Anderson 2014-05-06 23:28:32 -07:00
parent 87115fd001
commit 1868cf5073
1 changed files with 1 additions and 23 deletions
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24
src/libcore/cast.rs
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@ -33,13 +33,6 @@ pub unsafe fn transmute_copy<T, U>(src: &T) -> U {
#[inline]
pub unsafe fn forget<T>(thing: T) { intrinsics::forget(thing); }
/**
* Force-increment the reference count on a shared box. If used
* carelessly, this can leak the box.
*/
#[inline]
pub unsafe fn bump_box_refcount<T>(t: @T) { forget(t); }
/**
* Transform a value of one type into a value of another type.
* Both types must have the same size and alignment.
@ -106,7 +99,7 @@ pub unsafe fn copy_lifetime_vec<'a,S,T>(_ptr: &'a [S], ptr: &T) -> &'a T {
#[cfg(test)]
mod tests {
use cast::{bump_box_refcount, transmute};
use cast::transmute;
use raw;
use realstd::str::StrAllocating;
@ -115,21 +108,6 @@ mod tests {
assert_eq!(1u, unsafe { ::cast::transmute_copy(&1) });
}
#[test]
fn test_bump_managed_refcount() {
unsafe {
let managed = @"box box box".to_owned(); // refcount 1
bump_box_refcount(managed); // refcount 2
let ptr: *int = transmute(managed); // refcount 2
let _box1: @~str = ::cast::transmute_copy(&ptr);
let _box2: @~str = ::cast::transmute_copy(&ptr);
assert!(*_box1 == "box box box".to_owned());
assert!(*_box2 == "box box box".to_owned());
// Will destroy _box1 and _box2. Without the bump, this would
// use-after-free. With too many bumps, it would leak.
}
}
#[test]
fn test_transmute() {
unsafe {