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164 commits

Author SHA1 Message Date
bors
367e783e6f Auto merge of #56557 - pietroalbini:rollup, r=pietroalbini 
Rollup of 11 pull requests

Successful merges:

 - #56315 (Rustdoc inline macro reexport)
 - #56332 ([rustdoc] Specific crate search)
 - #56362 (Stabilise exhaustive integer patterns)
 - #56426 (libsyntax_pos: A few tweaks)
 - #56441 (rustbuild: Fix issues with compiler docs)
 - #56446 (pass the parameter environment to `traits::find_associated_item`)
 - #56500 (cleanup: remove static lifetimes from consts)
 - #56525 (Avoid extra copy and syscall in std::env::current_exe)
 - #56528 (Remove unused dependency (rustc_lint -> rustc_mir))
 - #56548 (Optimized string FromIterator + Extend impls)
 - #56553 (Don't print the profiling summary to stdout when -Zprofile-json is set)

Failed merges:

r? @ghost
 2018-12-06 12:41:30 +00:00
bors
128a1fa4e1 Auto merge of #55635 - oli-obk:min_const_unsafe_fn, r=nikomatsakis 
Allow calling `const unsafe fn` in `const fn` behind a feature gate

cc #55607

r? @Centril
 2018-12-06 10:18:17 +00:00
Pietro Albini
e57ed0ddab
Rollup merge of #56362 - varkor:stabilise-exhaustive-integer-patterns, r=nikomatsakis 
Stabilise exhaustive integer patterns

This is dependent on the FCP for https://github.com/rust-lang/rfcs/pull/2591 being completed, but that should happen tomorrow, so there's little harm in opening this PR early.

Closes #50907.
 2018-12-06 07:48:52 +01:00
Oliver Scherer
f4115765c5 Intrinsic checks are just needed for qualify_min_const_fn 2018-12-04 10:17:37 +01:00
Oliver Scherer
ae0b00cada Add and update tests 2018-12-04 10:17:37 +01:00
Oliver Scherer
4497ff3762 Emit feature gate suggestion 2018-12-04 10:17:36 +01:00
Oliver Scherer
02b22323f1 Make sure the initialization of constrained int range newtypes is unsafe 2018-12-04 10:17:36 +01:00
Oliver Scherer
cc3470ce3b Add test for dereferencing raw pointers and immediately referencing again 2018-12-04 10:17:36 +01:00
Oliver Scherer
f2ae7b78d6 Allow calling const unsafe fn in const fn behind a feature gate 2018-12-04 10:17:36 +01:00
Oliver Scherer
61efc3b71b Update tests 2018-12-04 10:06:05 +01:00
varkor
4fc5758a67 Update existing tests with more precise error messages 2018-11-30 13:53:15 +00:00
Philipp Hansch
9b847f0f96
Fix const_fn ICE with non-const function pointer 2018-11-30 08:43:50 +01:00
bors
b51632e3f0 Auto merge of #56070 - oli-obk:const_let, r=eddyb 
Allow assignments in const contexts

fixes https://github.com/rust-lang/rust/issues/54098
fixes https://github.com/rust-lang/rust/issues/51251
fixes https://github.com/rust-lang/rust/issues/52613
 2018-11-26 08:17:36 +00:00
Pietro Albini
d21d510dde
Rollup merge of #56207 - SimonSapin:int_to_from_bytes, r=nagisa 
Stabilize the int_to_from_bytes feature

Fixes #52963

FCP to merge completed: https://github.com/rust-lang/rust/issues/52963#issuecomment-416548327
 2018-11-25 17:05:10 +01:00
Pietro Albini
1aa3ffaf99
Rollup merge of #56024 - oli-obk:const_fn_collect_inner, r=michaelwoerister 
Don't auto-inline const functions

fixes #53451
 2018-11-25 17:04:57 +01:00
Simon Sapin
68a26ec647 Stabilize the int_to_from_bytes feature 
Fixes #52963
 2018-11-25 08:29:01 +01:00
Oliver Scherer
b820cc79a9 Clean up array/slice of primitive validation 2018-11-24 11:36:32 +01:00
Oliver Scherer
87bd5d13d8 Remove stderr file, because the test passes now 2018-11-24 11:36:32 +01:00
Oliver Scherer
ef332959dc Reintroduce zst-slice reading read_bytes method on Memory 2018-11-24 11:36:32 +01:00
Oliver Scherer
ebf03363f2 Properly test for int pointers in fat pointers to str slices of zero chars 2018-11-24 11:36:31 +01:00
Oliver Scherer
20dee47a66 Add regression test for integral pointers in zst str slice fat pointers 2018-11-24 11:36:31 +01:00
bors
6612100de5 Auto merge of #56065 - oli-obk:min_const_fn_loop_ice, r=davidtwco 
Replace the ICEing on const fn loops with an error

fixes #56035
 2018-11-21 23:24:15 +00:00
Oliver Scherer
6db8c6c6d9 Explain why we do not overwrite qualification of locals 2018-11-21 11:58:28 +01:00
Oliver Scherer
22aebd57c8 Add regression test for overwriting qualifs by assignment 2018-11-21 11:47:44 +01:00
Oliver Scherer
e05b61ccd8 Fix a comment 2018-11-21 11:47:16 +01:00
Oliver Scherer
42a3f730c7 Tidy 2018-11-21 11:13:49 +01:00
Oliver Scherer
3c290a5326 Ensure assignments don't allow skipping projection checks 2018-11-21 10:42:40 +01:00
Oliver Scherer
301ce8b2aa Properly assign to aggregate fields 2018-11-21 10:37:18 +01:00
Oliver Scherer
3e081c7e82 Trailing newline 2018-11-20 12:28:24 +01:00
Oliver Scherer
f70abe8d07 Add sanity test for promotion and const_let 2018-11-20 11:33:46 +01:00
Oliver Scherer
6bcb0d6152 Explain missing error in test 2018-11-20 11:33:27 +01:00
Ralf Jung
c462e44c13 we now do proper validation on scalars 2018-11-19 23:02:28 +01:00
Ralf Jung
b50c1b243e Make const_eval_raw query return just an AllocId 2018-11-19 22:42:46 +01:00
Oliver Scherer
59eff14120 Also catch static mutation at evaluation time 2018-11-19 16:46:03 +01:00
kennytm
8cea658b90
Rollup merge of #56059 - alexcrichton:fix-tests, r=sfackler 
Increase `Duration` approximate equal threshold to 1us

Previously this threshold when testing was 100ns, but the Windows
documentation states:

> which is a high resolution (<1us) time stamp

which presumably means that we could have up to 1us resolution, which
means that 100ns doesn't capture "equivalent" time intervals due to
various bits of rounding here and there.

It's hoped that this..

Closes #56034
 2018-11-19 22:06:45 +08:00
Pietro Albini
c0d48ce39a
Rollup merge of #56007 - RalfJung:non-const-call, r=oli-obk 
CTFE: dynamically make sure we do not call non-const-fn

I'd love to have a test case for this, but I don't know how.

I am also really surprised by this test case that changed behavior: Why did it even start execution if it already determined that it shouldn't?!?

r? @oli-obk
 2018-11-19 22:06:32 +08:00
Oliver Scherer
bc543d7e6c Allow assignments in const contexts 2018-11-19 11:19:14 +01:00
Oliver Scherer
8ee9711a6c Replace the ICEing on const fn loops with an error 2018-11-19 10:40:09 +01:00
bors
a9b791b3c0 Auto merge of #55672 - RalfJung:miri-extern-types, r=eddyb 
miri: accept extern types in structs if they are the only field

Fixes https://github.com/rust-lang/rust/issues/55541

Cc @oli-obk @eddyb https://github.com/rust-lang/rust/issues/43467
 2018-11-18 22:19:53 +00:00
Oliver Scherer
eb18ddd8f4 Don't auto-inline const fn 2018-11-17 17:50:37 +01:00
Ralf Jung
303dbccf04 CTFE: dynamically make sure we do not call non-const-fn 2018-11-16 18:05:08 +01:00
Ralf Jung
a3770c2547 do not accept out-of-bounds pointers in enum discriminants, they might be NULL 2018-11-15 10:59:39 +01:00
Ralf Jung
ffb6ba0828 validation: better error when the enum discriminant is Undef 2018-11-15 09:58:09 +01:00
bors
485397e49a Auto merge of #55589 - oli-obk:min_length_💣, r=pnkfelix 
Add `VariantIdx` type and use instead of `usize`
 2018-11-13 07:04:14 +00:00
bors
65204a97d4 Auto merge of #55278 - Centril:constification-1, r=alexcrichton 
Minor standard library constification

This PR makes some bits of the standard library into `const fn`s.
I've tried to be as aggressive as I possibly could in the constification.
The list is rather small due to how restrictive `const fn` is at the moment.

r? @oli-obk cc @rust-lang/libs

Stable public APIs affected:
+ [x] `Cell::as_ptr`
+ [x] `UnsafeCell::get`
+ [x] `char::is_ascii`
+ [x] `iter::empty`
+ [x] `ManuallyDrop::{new, into_inner}`
+ [x] `RangeInclusive::{start, end}`
+ [x] `NonNull::as_ptr`
+ [x] `{[T], str}::as_ptr`
+ [x] `Duration::{as_secs, subsec_millis, subsec_micros, subsec_nanos}`
+ [x] `CStr::as_ptr`
+ [x] `Ipv4Addr::is_unspecified`
+ [x] `Ipv6Addr::new`
+ [x] `Ipv6Addr::octets`

Unstable public APIs affected:
+ [x] `Duration::{as_millis, as_micros, as_nanos, as_float_secs}`
+ [x] `Wrapping::{count_ones, count_zeros, trailing_zeros, rotate_left, rotate_right, swap_bytes, reverse_bits, from_be, from_le, to_be, to_le, leading_zeros, is_positive, is_negative, leading_zeros}`
+ [x] `core::convert::identity`

--------------------------

## Removed from list in first pass:

Stable public APIs affected:
+ [ ] `BTree{Map, Set}::{len, is_empty}`
+ [ ] `VecDeque::is_empty`
+ [ ] `String::{is_empty, len}`
+ [ ] `FromUtf8Error::utf8_error`
+ [ ] `Vec<T>::{is_empty, len}`
+ [ ] `Layout::size`
+ [ ] `DecodeUtf16Error::unpaired_surrogate`
+ [ ] `core::fmt::{fill, width, precision, sign_plus, sign_minus, alternate, sign_aware_zero_pad}`
+ [ ] `panic::Location::{file, line, column}`
+ [ ] `{ChunksExact, RChunksExact}::remainder`
+ [ ] `Utf8Error::valid_up_to`
+ [ ] `VacantEntry::key`
+ [ ] `NulError::nul_position`
+ [ ] `IntoStringError::utf8_error`
+ [ ] `IntoInnerError::error`
+ [ ] `io::Chain::get_ref`
+ [ ] `io::Take::{limit, get_ref}`
+ [ ] `SocketAddrV6::{flowinfo, scope_id}`
+ [ ] `PrefixComponent::{kind, as_os_str}`
+ [ ] `Path::{ancestors, display}`
+ [ ] `WaitTimeoutResult::timed_out`
+ [ ] `Receiver::{iter, try_iter}`
+ [ ] `thread::JoinHandle::thread`
+ [ ] `SystemTimeError::duration`

Unstable public APIs affected:
+ [ ] `core::fmt::Arguments::new_v1`
+ [ ] `core::fmt::Arguments::new_v1_formatted`
+ [ ] `Pin::{get_ref, into_ref}`
+ [ ] `Utf8Lossy::chunks`
+ [ ] `LocalWaker::as_waker`
+ [ ] `panic::PanicInfo::{internal_constructor, message, location}`
+ [ ] `panic::Location::{internal_constructor }`

## Removed from list in 2nd pass:

Stable public APIs affected:
+ [ ] `LinkedList::{new, iter, is_empty, len}`
+ [ ] `mem::forget`
+ [ ] `Cursor::{new, get_ref, position}`
+ [ ] `io::{empty, repeat, sink}`
+ [ ] `PoisonError::new`
+ [ ] `thread::Builder::new`
+ [ ] `process::Stdio::{piped, inherit, null}`

Unstable public APIs affected:
+ [ ] `io::Initializer::{zeroing, should_initialize}`
 2018-11-12 18:54:11 +00:00
Oliver Scherer
b174b0b955 miri-engine value visitor update to VariantIdx 2018-11-12 14:24:45 +01:00
Pietro Albini
0f1c1eb480
Rollup merge of #55828 - oli-obk:promotion_strikes_again, r=eddyb 
Add missing `rustc_promotable` attribute to unsigned `min_value` and `max_value`

cc @pnkfelix

fixes #55806
 2018-11-11 00:21:23 +01:00
Pietro Albini
e121305abd
Rollup merge of #55792 - oli-obk:propsicle, r=RalfJung 
Prevent ICE in const-prop array oob check

fixes https://github.com/rust-lang/rust/issues/55772
fixes https://github.com/rust-lang/rust/issues/54541
 2018-11-11 00:21:14 +01:00
Mazdak Farrokhzad
ac1c6b0378 adjust ui/../mod-static-with-const-fn.rs 2018-11-10 02:36:19 +01:00
Oliver Scherer
c8e23d8c4c Tidy ♪ all ♪ the ♪ way ♪♪♪♪ with ♪ a ♪ newline ♪ missing ♪ cry ♪♪ 2018-11-10 01:11:06 +01:00