Commit Graph

127827 Commits

Author SHA1 Message Date
Ralf Jung
7b99c8e1cf never promote non-const operations; revert STATIC promotion change 2020-09-19 22:14:17 +02:00
Ralf Jung
7febd5a257 fix doc comment 2020-09-19 22:14:17 +02:00
Ralf Jung
4d1ef03c9e cleanup promotion const_kind checks
in particular allow a few more promotions for consistency when they were already allowed in other contexts
2020-09-19 22:14:17 +02:00
bors
f68e08933d Auto merge of #76929 - ssomers:btree_cleanup_2, r=Mark-Simulacrum
BTreeMap: wrap node's raw parent pointer in NonNull

Now that the other `*const` (root) is gone, seemed like a small step forward.

r? `@Mark-Simulacrum`
2020-09-19 19:15:06 +00:00
Stein Somers
0661b0a36d BTreeMap: wrap node's raw parent pointer in NonNull 2020-09-19 19:02:42 +02:00
bors
59fb88d061 Auto merge of #76327 - lzutao:split-core-num, r=SimonSapin
Split `core/num/mod.rs` to smaller mods

Note for reviewer:
* I split to multiple commits for easier reviewing, but I could git squash them all to one if requested.
* Recommend pulling this change locally and using advanced git diff viewer or this command:
  ```
  git show --reverse --color-moved=dimmed-zebra master..
  ```

---

I split `core/num/mod.rs` to these modules:

* `error`: For error structs like `ParseIntError`.
* blanket `shells` dir: For dummy number type modules: std::i32, std::f32, and the likes. Why? See below.
* `int_macros` and `uint_macros`: Real implementation of all integer types via `int_impl` and `uint_impl`
* `nonzero`: For `NonZero*` types and their implementations.
* `wrapping`: For `Wrapping<T>` types.
2020-09-19 16:13:26 +00:00
Bastian Kauschke
1146c39da7 cache types during normalization 2020-09-19 17:27:13 +02:00
Stein Somers
c6a8cfbde8 BTreeMap: code readability tweaks 2020-09-19 17:08:43 +02:00
Lzu Tao
a50ec5f144 Remove outdated ignored tidy comment 2020-09-19 15:01:51 +00:00
Lzu Tao
3ee724e610 Move (u)int_impl macros to their own files 2020-09-19 15:01:49 +00:00
rijenkii
a60f97849b
Add tracking issue for feature(unix_socket_peek) 2020-09-19 21:55:01 +07:00
Lzu Tao
a54584319e Move dummy integer modules (like core::u32) to shells dir 2020-09-19 14:54:20 +00:00
Lzu Tao
550939f654 Move error structs to new mod 2020-09-19 14:54:20 +00:00
Lzu Tao
7125a481ce Move Wrapping<T> definition to wrapping mod 2020-09-19 14:54:20 +00:00
Lzu Tao
baecad9c39 Move NonZero* to its file 2020-09-19 14:54:20 +00:00
Bastian Kauschke
bfa2030ccb update docs 2020-09-19 15:36:53 +02:00
bors
b3aae050cd Auto merge of #76880 - shepmaster:cc-rs, r=Mark-Simulacrum
Update cc crate to 1.0.60 to understand aarch64-apple-darwin with clang

r? `@Mark-Simulacrum`

/cc `@alexcrichton`
2020-09-19 13:31:23 +00:00
bors
8e9d5db839 Auto merge of #76912 - RalfJung:rollup-q9ur56h, r=RalfJung
Rollup of 14 pull requests

Successful merges:

 - #73963 (deny(unsafe_op_in_unsafe_fn) in libstd/path.rs)
 - #75099 (lint/ty: move fns to avoid abstraction violation)
 - #75502 (Use implicit (not explicit) rules for promotability by default in `const fn`)
 - #75580 (Add test for checking duplicated branch or-patterns)
 - #76310 (Add `[T; N]: TryFrom<Vec<T>>` (insta-stable))
 - #76400 (Clean up vec benches bench_in_place style)
 - #76434 (do not inline black_box when building for Miri)
 - #76492 (Add associated constant `BITS` to all integer types)
 - #76525 (Add as_str() to string::Drain.)
 - #76636 (assert ScalarMaybeUninit size)
 - #76749 (give *even better* suggestion when matching a const range)
 - #76757 (don't convert types to the same type with try_into (clippy::useless_conversion))
 - #76796 (Give a better error message when x.py uses the wrong stage for CI)
 - #76798 (Build fixes for RISC-V 32-bit Linux support)

Failed merges:

r? `@ghost`
2020-09-19 11:29:00 +00:00
Bastian Kauschke
67f319c30b take TyCtxt by value 2020-09-19 12:41:12 +02:00
Bastian Kauschke
a219ad64a6 extend is_ty_or_ty_ctxt to self types 2020-09-19 12:41:12 +02:00
Bastian Kauschke
f7d5080ec3 don't take TyCtxt by reference 2020-09-19 12:41:12 +02:00
Ralf Jung
b4c3f409af
Rollup merge of #76798 - alistair23:alistair/rv32-linux, r=jyn514
Build fixes for RISC-V 32-bit Linux support

This fixes build issues with the 32-bit RISC-V port.
2020-09-19 11:47:56 +02:00
Ralf Jung
404cce0685
Rollup merge of #76796 - jyn514:wrong-stage, r=shepmaster
Give a better error message when x.py uses the wrong stage for CI

r? @shepmaster
2020-09-19 11:47:54 +02:00
Ralf Jung
4831523ac4
Rollup merge of #76757 - matthiaskrgr:clippy_try_into, r=lcnr
don't convert types to the same type with try_into (clippy::useless_conversion)
2020-09-19 11:47:52 +02:00
Ralf Jung
5631b5d684
Rollup merge of #76749 - guswynn:hir_ranges, r=estebank
give *even better* suggestion when matching a const range

notice that the err already has "constant defined here"
so this is now *exceedingly clear*

extension to #76222

r? @estebank
2020-09-19 11:47:50 +02:00
Ralf Jung
8a7cb1eac1
Rollup merge of #76636 - RalfJung:miri-size-assert, r=oli-obk
assert ScalarMaybeUninit size

I noticed most low-level Miri types have such an assert but `ScalarMaybeUninit` does not, so let's add that. Good t see that the `Option`-like optimization kicks in and this is no bigger than `Scalar`. :)

r? @oli-obk
2020-09-19 11:47:49 +02:00
Ralf Jung
46bb884cf3
Rollup merge of #76525 - fusion-engineering-forks:string-drain, r=dtolnay
Add as_str() to string::Drain.

Vec's Drain recently [had its `.as_slice()` stabilized](https://github.com/rust-lang/rust/pull/72584), but String's Drain was still missing the analogous `.as_str()`. This adds that.

Also improves the Debug implementation, which now shows the remaining data instead of just `"Drain { .. }"`.
2020-09-19 11:47:47 +02:00
Ralf Jung
fef3324043
Rollup merge of #76492 - fusion-engineering-forks:int-bits, r=dtolnay
Add associated constant `BITS` to all integer types

Recently I've regularly come across this snippet (in a few different crates, including `core` and `std`):
```rust
std::mem::size_of<usize>() * 8
```

I think it's time for a `usize::BITS`.
2020-09-19 11:47:45 +02:00
Ralf Jung
1720fd94e8
Rollup merge of #76434 - RalfJung:black-box, r=Mark-Simulacrum
do not inline black_box when building for Miri

We cannot do the assembly trick in Miri, but let's at least make sure MIR inlining does not circumvent the black_box.

Also use black_box instead of local optimization barriers in a few const tests.
2020-09-19 11:47:43 +02:00
Ralf Jung
67fa7b78a4
Rollup merge of #76400 - pickfire:patch-5, r=dtolnay
Clean up vec benches bench_in_place style
2020-09-19 11:47:41 +02:00
Ralf Jung
bac2f39350
Rollup merge of #76310 - scottmcm:array-try_from-vec, r=dtolnay
Add `[T; N]: TryFrom<Vec<T>>` (insta-stable)

This is very similar to the [existing](https://doc.rust-lang.org/nightly/std/convert/trait.TryFrom.html#impl-TryFrom%3CBox%3C%5BT%5D%3E%3E) `Box<[T; N]>: TryFrom<Box<[T]>>`, but allows avoiding the `shrink_to_fit` if you have a vector and not a boxed slice.

Like the slice equivalents of this, it fails if the length of the vector is not exactly `N`.
This uses `Vec<T>` as the `Error` type to return the input, like how the `Rc<[T]> -> Rc<[T; N]>` (and Arc) ones also reflect the input directly in the error type.

```rust
#[stable(feature = "array_try_from_vec", since = "1.47.0")]
impl<T, const N: usize> TryFrom<Vec<T>> for [T; N] {
    type Error = Vec<T>;
    fn try_from(mut vec: Vec<T>) -> Result<[T; N], Vec<T>>;
}
```

Inspired by this zulip thread: https://rust-lang.zulipchat.com/#narrow/stream/219381-t-libs/topic/APIs.20for.20getting.20stuff.20from.20a.20Vec.20by.20owned/near/209048103
2020-09-19 11:47:39 +02:00
Ralf Jung
3ebba83a47
Rollup merge of #75580 - JulianKnodt:or_pattern, r=wesleywiser
Add test for checking duplicated branch or-patterns

This adds a regression test for checking `or-patterns` in MIR as shown in #75439.
This doesn't introduce a fix as I'm not sure where it would go(I suspect maybe here: src/librustc_mir_build/build/matches/mod.rs), and I'm not particularly able to fix it.

cc: @lzutao
2020-09-19 11:47:37 +02:00
Ralf Jung
f62ba52f5c
Rollup merge of #75502 - ecstatic-morse:implicit-promotion-in-const-fn, r=RalfJung
Use implicit (not explicit) rules for promotability by default in `const fn`

For crater run. See https://github.com/rust-lang/const-eval/pull/54#discussion_r469995552.

cc #75586
2020-09-19 11:47:35 +02:00
Ralf Jung
aa25f9ebd8
Rollup merge of #75099 - davidtwco:is-zst-abstraction-violation, r=eddyb
lint/ty: move fns to avoid abstraction violation

This PR moves `transparent_newtype_field` and `is_zst` to `LateContext` where they are used, rather than being on the `VariantDef` and `TyS` types, hopefully addressing @eddyb's concern [from this comment](https://github.com/rust-lang/rust/pull/74340#discussion_r456534910).
2020-09-19 11:47:34 +02:00
Ralf Jung
44be933ff7
Rollup merge of #73963 - hellow554:unsafe_path, r=Mark-Simulacrum
deny(unsafe_op_in_unsafe_fn) in libstd/path.rs

The libstd/path.rs part of #73904 . Wraps the two calls to an unsafe fn Initializer::nop() in an unsafe block.
2020-09-19 11:47:31 +02:00
Bastian Kauschke
0eecbd4f97 wording 2020-09-19 11:33:11 +02:00
Bastian Kauschke
39f125918d cfg bootstrap 2020-09-19 11:33:11 +02:00
Bastian Kauschke
4debbdc6b9 transmute: use diagnostic item 2020-09-19 11:33:11 +02:00
bors
fd702d2919 Auto merge of #76886 - Aaron1011:fix/ensure-stack-predicate, r=Mark-Simulacrum
Wrap recursive predicate evaluation with `ensure_sufficient_stack`

I haven't been able to come up with a minimized test case for #76770,
but this fixes a stack overflow in rustc as well.
2020-09-19 09:21:22 +00:00
Oliver Scherer
b8e6883a2f Reflect the "do not call this query directly" mentality in its name 2020-09-19 10:57:14 +02:00
Oliver Scherer
c5889e4dab Update incremental tests 2020-09-19 10:36:37 +02:00
Oliver Scherer
ef04e68462 Update compile-fail tests 2020-09-19 10:36:37 +02:00
Oliver Scherer
c3c8c981a8 Rustfmt 2020-09-19 10:36:36 +02:00
Oliver Scherer
182ed8544d Address review comments 2020-09-19 10:36:36 +02:00
Oliver Scherer
90708c15c4 Fix rebase fallout and make the test work with debug info 2020-09-19 10:36:36 +02:00
Oliver Scherer
888afd50d9 Unify the names of const eval queries and their return types 2020-09-19 10:36:36 +02:00
Oliver Scherer
69a6be73e6 Rename const eval queries to reflect the validation changes 2020-09-19 10:36:36 +02:00
Oliver Scherer
40c2087eb5 We can make const eval sound, it's just super expensive 2020-09-19 10:36:36 +02:00
Oliver Scherer
dd9702a059 Do not call the const_eval query in mir interpretation except for caching of nulary intrinsics 2020-09-19 10:36:36 +02:00
Oliver Scherer
a6c60bbe5d Clarify a statement in UB test 2020-09-19 10:36:36 +02:00