std: Deprecate a number of unstable features by alexcrichton · Pull Request #26914 · rust-lang/rust

alexcrichton · 2015-07-09T07:13:21Z

Many of these have long since reached their stage of being obsolete, so this
commit starts the removal process for all of them. The unstable features that
were deprecated are:

box_heap
cmp_partial
fs_time
hash_default
int_slice
iter_min_max
iter_reset_fuse
iter_to_vec
map_in_place
move_from
owned_ascii_ext
page_size
read_and_zero
scan_state
slice_chars
slice_position_elem
subslice_offset

rust-highfive · 2015-07-09T07:13:33Z

r? @huonw

(rust_highfive has picked a reviewer for you, use r? to override)

alexcrichton · 2015-07-09T07:13:41Z

r? @aturon

cc @rust-lang/libs

bluss · 2015-07-09T08:30:42Z

This is an unusual comment :-) I don't disagree with the deprecation, but I'd like to add a method to fuse, to query its fused/nonfused state, it would be quite useful.

Yeah, I agree: the problem here isn't the one-off-ness per se, but rather that this method doesn't seem terribly useful in practice.

nagisa · 2015-07-10T17:35:47Z

This only deprecates partial_min, but not partial_max. Are you sure that’s not an oversight?

Oops, thanks!

nagisa · 2015-07-10T17:42:07Z

I have no complaints about scope of this PR 😊

bors · 2015-07-24T12:34:11Z

☔ The latest upstream changes (presumably #27215) made this pull request unmergeable. Please resolve the merge conflicts.

bors · 2015-07-26T12:19:47Z

☔ The latest upstream changes (presumably #26870) made this pull request unmergeable. Please resolve the merge conflicts.

bluss · 2015-07-26T21:53:41Z

I'd like to keep position elem. We want this functionality in some form (I imagine something like .find<P>(p: P) where P: SlicePattern in the end, inspired by str's patterns). Can we rename it to .find(elem: &T) for now, and wait for an RFC and design to generalize its signature in the future?

aturon · 2015-07-27T15:17:34Z

cc @pnkfelix -- can you comment on whether we may still want this constant with the upcoming box/allocator system?

aturon · 2015-07-27T22:52:52Z

r=me modulo nits.

alexcrichton · 2015-07-27T23:30:09Z

@bluss perhaps, yeah, but I'd prefer to keep the scope of this PR to just deprecate items instead of adding and/or renaming new APIs.

alexcrichton · 2015-07-27T23:30:32Z

@bors: r=aturon a1227e87c96c3e083467b8c5fb373b09c0f38e6c

bors · 2015-07-27T23:32:29Z

⌛ Testing commit a1227e8 with merge be324ca...

bors · 2015-07-27T23:38:03Z

💔 Test failed - auto-win-gnu-32-nopt-t

Many of these have long since reached their stage of being obsolete, so this commit starts the removal process for all of them. The unstable features that were deprecated are: * cmp_partial * fs_time * hash_default * int_slice * iter_min_max * iter_reset_fuse * iter_to_vec * map_in_place * move_from * owned_ascii_ext * page_size * read_and_zero * scan_state * slice_chars * slice_position_elem * subslice_offset

alexcrichton · 2015-07-27T23:40:01Z

@bors: r=aturon

On Mon, Jul 27, 2015 at 4:38 PM, bors notifications@github.com wrote:

[image: 💔] Test failed - auto-win-gnu-32-nopt-t
http://buildbot.rust-lang.org/builders/auto-win-gnu-32-nopt-t/builds/842
—
Reply to this email directly or view it on GitHub
#26914 (comment).

bors · 2015-07-27T23:40:01Z

📌 Commit b3aa1a6 has been approved by aturon

bluss · 2015-07-27T23:48:36Z

I don't see how this is replaced by drain, it may in fact be very useful (I'd use it in itertools if it were stable).

Yes this isn't replaced by Drain -- in particular IntoIter allows you to return the Vec up and transport it around -- Drain doesn't. Still, this seems fairly marginal for today's std.

True, but I believe that this was originally added to get back the original allocation, in which case drain suffices for this.

Not for every use case, for example not for GroupByLazy, which would like to recycle allocations of the IntoIters it uses.

bluss · 2015-07-27T23:52:57Z

@alexcrichton You don't need to rename it, I just suggested not deprecating position_elem yet.

alexcrichton · 2015-07-28T00:59:56Z

Possibly, yeah, but it's slated to be deprecated soon anyway so it doesn't seem too bad to just go ahead and do so.

bors · 2015-07-28T01:12:40Z

⌛ Testing commit b3aa1a6 with merge 9ca511c...

Many of these have long since reached their stage of being obsolete, so this commit starts the removal process for all of them. The unstable features that were deprecated are: * box_heap * cmp_partial * fs_time * hash_default * int_slice * iter_min_max * iter_reset_fuse * iter_to_vec * map_in_place * move_from * owned_ascii_ext * page_size * read_and_zero * scan_state * slice_chars * slice_position_elem * subslice_offset

bors · 2015-07-28T03:31:56Z

☀️ Test successful - auto-linux-32-nopt-t, auto-linux-32-opt, auto-linux-64-nopt-t, auto-linux-64-opt, auto-linux-64-x-android-t, auto-mac-32-opt, auto-mac-64-nopt-t, auto-mac-64-opt, auto-win-gnu-32-nopt-t, auto-win-gnu-32-opt, auto-win-gnu-64-nopt-t, auto-win-gnu-64-opt, auto-win-msvc-32-opt, auto-win-msvc-64-opt

cristicbz · 2015-08-17T11:53:22Z

This is used by coroutine-rs, would be nice to provide this somewhere since it's os specific and non-trivial to obtain.

rust-highfive assigned huonw Jul 9, 2015

alexcrichton added the T-libs-api [DEPRECATED; DO NOT USE] label Jul 9, 2015

rust-highfive assigned aturon and unassigned huonw Jul 9, 2015

bluss reviewed Jul 9, 2015
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alexcrichton force-pushed the deprecate-easy branch from d851cce to 136bc80Compare July 10, 2015 16:43

nagisa reviewed Jul 10, 2015
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alexcrichton force-pushed the deprecate-easy branch from 136bc80 to 012f993Compare July 10, 2015 21:24

alexcrichton force-pushed the deprecate-easy branch from 012f993 to 19e9951Compare July 24, 2015 16:11

Gankra added the I-needs-decision Issue: In need of a decision. label Jul 24, 2015

alexcrichton force-pushed the deprecate-easy branch from 19e9951 to ef225d4Compare July 24, 2015 17:03

alexcrichton force-pushed the deprecate-easy branch 2 times, most recently from 53e662e to a1227e8Compare July 26, 2015 17:19

aturon reviewed Jul 27, 2015
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alexcrichton force-pushed the deprecate-easy branch from a1227e8 to b3aa1a6Compare July 27, 2015 23:39

bluss reviewed Jul 27, 2015
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bors merged commit b3aa1a6 into rust-lang:masterJul 28, 2015

SimonSapin mentioned this pull request Aug 2, 2015
Low hanging Dromaeo fruit servo/servo#6900
Closed

alexcrichton deleted the deprecate-easy branch August 4, 2015 15:52

SimonSapin mentioned this pull request Aug 4, 2015
Add ByNeed and Predicate traits #27517
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cristicbz reviewed Aug 17, 2015
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durka mentioned this pull request Aug 27, 2015
Anomalous unstable feature annotations #28037
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