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Kill needs_drop

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This commit is contained in:
Manish Goregaokar 2017-08-25 15:48:03 -07:00
parent 926a08a4ab
commit db840f5227
2 changed files with 5 additions and 4 deletions
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7
src/hash/table.rs
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@ -13,7 +13,7 @@ use alloc::heap::{Heap, Alloc, Layout};
use cmp; use cmp;
use hash::{BuildHasher, Hash, Hasher}; use hash::{BuildHasher, Hash, Hasher};
use marker; use marker;
use mem::{align_of, size_of, needs_drop}; use mem::{align_of, size_of};
use mem; use mem;
use ops::{Deref, DerefMut}; use ops::{Deref, DerefMut};
use ptr::{self, Unique, Shared}; use ptr::{self, Unique, Shared};
@ -1175,10 +1175,11 @@ unsafe impl<#[may_dangle] K, #[may_dangle] V> Drop for RawTable<K, V> {
// dropping empty tables such as on resize. // dropping empty tables such as on resize.
// Also avoid double drop of elements that have been already moved out. // Also avoid double drop of elements that have been already moved out.
unsafe { unsafe {
if needs_drop::<(K, V)>() { // FORK NOTE: Can't needs_drop on stable
// if needs_drop::<(K, V)>() {
// avoid linear runtime for types that don't need drop // avoid linear runtime for types that don't need drop
self.rev_drop_buckets(); self.rev_drop_buckets();
} // }
} }
let hashes_size = self.capacity() * size_of::<HashUint>(); let hashes_size = self.capacity() * size_of::<HashUint>();

2
src/lib.rs
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@ -1,7 +1,7 @@
#![feature(generic_param_attrs)] #![feature(generic_param_attrs)]
#![feature(dropck_eyepatch)] #![feature(dropck_eyepatch)]
#![feature(allocator_api)] #![feature(allocator_api)]
#![feature(alloc, needs_drop, shared, unique, fused, placement_new_protocol)] #![feature(alloc, shared, unique, fused, placement_new_protocol)]
extern crate alloc; extern crate alloc;