stop using a couple unstable features

It would be nice to build on stable Rust. In particular, I'm hitting
compiler bugs in Rust nightly, such at this one:
https://github.com/rust-lang/rust/issues/38177
I imagine beta/stable compilers would be less problematic.

These two features were easy to get rid of:

* alloc was used to get a Box<[u8]> to uninitialized memory.
  Looks like that's possible with Vec.

* box_syntax wasn't actually used at all. (Maybe a leftover from something.)

The remaining features are:

* plugin, for clippy.
  https://github.com/rust-lang/rust/issues/29597
  I could easily gate it with a "nightly" cargo feature.

* proc_macro, for serde_derive.
  https://github.com/rust-lang/rust/issues/35900
  serde does support stable rust, although it's annoying.
  https://serde.rs/codegen-stable.html
  I might just wait a bit; this feature looks like it's getting close to
  stabilization.
This commit is contained in:
Scott Lamb 2016-12-07 21:05:49 -08:00
parent 474b5403a9
commit 678500bc88
2 changed files with 6 additions and 4 deletions

View File

@ -29,10 +29,9 @@
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#![cfg_attr(test, feature(test))]
#![feature(alloc, box_syntax, conservative_impl_trait, plugin, proc_macro)]
#![feature(conservative_impl_trait, plugin, proc_macro)]
#![plugin(clippy)]
extern crate alloc;
extern crate byteorder;
extern crate core;
#[macro_use] extern crate chan;

View File

@ -79,7 +79,6 @@
extern crate byteorder;
extern crate time;
use alloc::raw_vec::RawVec;
use byteorder::{BigEndian, ByteOrder, WriteBytesExt};
use db;
use dir;
@ -366,7 +365,11 @@ impl Mp4Segment {
let stsz_len = mem::size_of::<u32>() * s.frames as usize;
let stss_len = mem::size_of::<u32>() * s.key_frames as usize;
let len = stts_len + stsz_len + stss_len;
let mut buf = unsafe { RawVec::with_capacity(len).into_box() };
let mut buf = unsafe {
let mut v = Vec::with_capacity(len);
v.set_len(len);
v.into_boxed_slice()
};
{
let (stts, mut rest) = buf.split_at_mut(stts_len);
let (stsz, stss) = rest.split_at_mut(stsz_len);