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Auto merge of #101411 - matthiaskrgr:rollup-uj24yb5, r=matthiaskrgr

Browse Source 
Rollup of 7 pull requests

Successful merges:

 - #101322 (Fix internal doc link)
 - #101385 (updated description of File struct in std::fs)
 - #101388 (Don't delay invalid LHS bug unless it will be covered by an error in `check_overloaded_binop`)
 - #101394 (Forbid mixing `System` with direct sytem allocator calls)
 - #101397 (rustdoc: remove redundant mobile-sized `.source nav:not(.sidebar).sub`)
 - #101401 (Make `char::is_lowercase` and `char::is_uppercase` const)
 - #101407 (Remove duplicated test (superseeded by search-form-elements.goml))

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2022-09-04 18:10:04 +00:00
commit 0ebd3ab63a
14 changed files with 130 additions and 60 deletions
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25
compiler/rustc_typeck/src/check/op.rs
View File

@ -57,9 +57,28 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
)
.is_ok()
{
// Suppress this error, since we already emitted
// a deref suggestion in check_overloaded_binop
err.downgrade_to_delayed_bug();
// If LHS += RHS is an error, but *LHS += RHS is successful, then we will have
// emitted a better suggestion during error handling in check_overloaded_binop.
if self
.lookup_op_method(
lhs_ty,
Some(rhs_ty),
Some(rhs),
Op::Binary(op, IsAssign::Yes),
expected,
)
.is_err()
{
err.downgrade_to_delayed_bug();
} else {
// Otherwise, it's valid to suggest dereferencing the LHS here.
err.span_suggestion_verbose(
lhs.span.shrink_to_lo(),
"consider dereferencing the left-hand side of this operation",
"*",
Applicability::MaybeIncorrect,
);
}
}
}
});

4
library/alloc/src/collections/btree/dedup_sorted_iter.rs
View File

@ -3,7 +3,9 @@ use core::iter::Peekable;
/// A iterator for deduping the key of a sorted iterator.
/// When encountering the duplicated key, only the last key-value pair is yielded.
///
/// Used by [`BTreeMap::bulk_build_from_sorted_iter`].
/// Used by [`BTreeMap::bulk_build_from_sorted_iter`][1].
///
/// [1]: crate::collections::BTreeMap::bulk_build_from_sorted_iter
pub struct DedupSortedIter<K, V, I>
where
I: Iterator<Item = (K, V)>,

22
library/core/src/char/methods.rs
View File

@ -746,10 +746,19 @@ impl char {
/// assert!(!'中'.is_lowercase());
/// assert!(!' '.is_lowercase());
/// ```
///
/// In a const context:
///
/// ```
/// #![feature(const_unicode_case_lookup)]
/// const CAPITAL_DELTA_IS_LOWERCASE: bool = 'Δ'.is_lowercase();
/// assert!(!CAPITAL_DELTA_IS_LOWERCASE);
/// ```
#[must_use]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_unicode_case_lookup", issue = "101400")]
#[inline]
pub fn is_lowercase(self) -> bool {
pub const fn is_lowercase(self) -> bool {
match self {
'a'..='z' => true,
c => c > '\x7f' && unicode::Lowercase(c),
@ -779,10 +788,19 @@ impl char {
/// assert!(!'中'.is_uppercase());
/// assert!(!' '.is_uppercase());
/// ```
///
/// In a const context:
///
/// ```
/// #![feature(const_unicode_case_lookup)]
/// const CAPITAL_DELTA_IS_UPPERCASE: bool = 'Δ'.is_uppercase();
/// assert!(CAPITAL_DELTA_IS_UPPERCASE);
/// ```
#[must_use]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_unicode_case_lookup", issue = "101400")]
#[inline]
pub fn is_uppercase(self) -> bool {
pub const fn is_uppercase(self) -> bool {
match self {
'A'..='Z' => true,
c => c > '\x7f' && unicode::Uppercase(c),

1
library/core/src/lib.rs
View File

@ -143,6 +143,7 @@
#![feature(const_type_id)]
#![feature(const_type_name)]
#![feature(const_default_impls)]
#![feature(const_unicode_case_lookup)]
#![feature(const_unsafecell_get_mut)]
#![feature(core_panic)]
#![feature(duration_consts_float)]

37
library/core/src/unicode/unicode_data.rs
View File

@ -1,7 +1,8 @@
///! This file is generated by src/tools/unicode-table-generator; do not edit manually!
#[rustc_const_unstable(feature = "const_unicode_case_lookup", issue = "101400")]
#[inline(always)]
fn bitset_search<
const fn bitset_search<
const N: usize,
const CHUNK_SIZE: usize,
const N1: usize,
@ -17,14 +18,18 @@ fn bitset_search<
let bucket_idx = (needle / 64) as usize;
let chunk_map_idx = bucket_idx / CHUNK_SIZE;
let chunk_piece = bucket_idx % CHUNK_SIZE;
let chunk_idx = if let Some(&v) = chunk_idx_map.get(chunk_map_idx) {
v
// FIXME: const-hack: Revert to `slice::get` after `const_slice_index`
// feature stabilizes.
let chunk_idx = if chunk_map_idx < chunk_idx_map.len() {
chunk_idx_map[chunk_map_idx]
} else {
return false;
};
let idx = bitset_chunk_idx[chunk_idx as usize][chunk_piece] as usize;
let word = if let Some(word) = bitset_canonical.get(idx) {
*word
// FIXME: const-hack: Revert to `slice::get` after `const_slice_index`
// feature stabilizes.
let word = if idx < bitset_canonical.len() {
bitset_canonical[idx]
} else {
let (real_idx, mapping) = bitset_canonicalized[idx - bitset_canonical.len()];
let mut word = bitset_canonical[real_idx as usize];
@ -318,14 +323,14 @@ pub mod grapheme_extend {
#[rustfmt::skip]
pub mod lowercase {
static BITSET_CHUNKS_MAP: [u8; 123] = [
const BITSET_CHUNKS_MAP: &'static [u8; 123] = &[
14, 17, 0, 0, 9, 0, 0, 12, 13, 10, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 4, 1, 0, 15, 0, 8, 0, 0, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 18, 0,
3, 0, 0, 7,
];
static BITSET_INDEX_CHUNKS: [[u8; 16]; 19] = [
const BITSET_INDEX_CHUNKS: &'static [[u8; 16]; 19] = &[
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 59, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 14, 55, 0],
@ -346,7 +351,7 @@ pub mod lowercase {
[16, 49, 2, 20, 66, 9, 57, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[63, 39, 54, 12, 73, 61, 18, 1, 6, 62, 71, 19, 68, 69, 3, 44],
];
static BITSET_CANONICAL: [u64; 55] = [
const BITSET_CANONICAL: &'static [u64; 55] = &[
0b0000000000000000000000000000000000000000000000000000000000000000,
0b1111111111111111110000000000000000000000000011111111111111111111,
0b1010101010101010101010101010101010101010101010101010100000000010,
@ -403,13 +408,14 @@ pub mod lowercase {
0b1110011111111111111111111111111111111111111111110000000000000000,
0b1110101111000000000000000000000000001111111111111111111111111100,
];
static BITSET_MAPPING: [(u8, u8); 20] = [
const BITSET_MAPPING: &'static [(u8, u8); 20] = &[
(0, 64), (1, 188), (1, 183), (1, 176), (1, 109), (1, 124), (1, 126), (1, 66), (1, 70),
(1, 77), (2, 146), (2, 144), (2, 83), (3, 12), (3, 6), (4, 156), (4, 78), (5, 187),
(6, 132), (7, 93),
];
pub fn lookup(c: char) -> bool {
#[rustc_const_unstable(feature = "const_unicode_case_lookup", issue = "101400")]
pub const fn lookup(c: char) -> bool {
super::bitset_search(
c as u32,
&BITSET_CHUNKS_MAP,
@ -454,14 +460,14 @@ pub mod n {
#[rustfmt::skip]
pub mod uppercase {
static BITSET_CHUNKS_MAP: [u8; 125] = [
const BITSET_CHUNKS_MAP: &'static [u8; 125] = &[
12, 15, 6, 6, 0, 6, 6, 2, 4, 11, 6, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 5, 6, 14, 6, 10, 6, 6, 1, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 13, 6, 6,
6, 6, 9, 6, 3,
];
static BITSET_INDEX_CHUNKS: [[u8; 16]; 17] = [
const BITSET_INDEX_CHUNKS: &'static [[u8; 16]; 17] = &[
[43, 43, 5, 34, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 5, 1],
[43, 43, 5, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43],
[43, 43, 39, 43, 43, 43, 43, 43, 17, 17, 62, 17, 42, 29, 24, 23],
@ -480,7 +486,7 @@ pub mod uppercase {
[57, 19, 2, 18, 10, 47, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43],
[57, 37, 17, 27, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43],
];
static BITSET_CANONICAL: [u64; 43] = [
const BITSET_CANONICAL: &'static [u64; 43] = &[
0b0000011111111111111111111111111000000000000000000000000000000000,
0b0000000000111111111111111111111111111111111111111111111111111111,
0b0101010101010101010101010101010101010101010101010101010000000001,
@ -525,13 +531,14 @@ pub mod uppercase {
0b1111011111111111000000000000000000000000000000000000000000000000,
0b1111111100000000111111110000000000111111000000001111111100000000,
];
static BITSET_MAPPING: [(u8, u8); 25] = [
const BITSET_MAPPING: &'static [(u8, u8); 25] = &[
(0, 187), (0, 177), (0, 171), (0, 167), (0, 164), (0, 32), (0, 47), (0, 51), (0, 121),
(0, 117), (0, 109), (1, 150), (1, 148), (1, 142), (1, 134), (1, 131), (1, 64), (2, 164),
(2, 146), (2, 20), (3, 146), (3, 140), (3, 134), (4, 178), (4, 171),
];
pub fn lookup(c: char) -> bool {
#[rustc_const_unstable(feature = "const_unicode_case_lookup", issue = "101400")]
pub const fn lookup(c: char) -> bool {
super::bitset_search(
c as u32,
&BITSET_CHUNKS_MAP,

5
library/std/src/alloc.rs
View File

@ -68,7 +68,10 @@ pub use alloc_crate::alloc::*;
/// The default memory allocator provided by the operating system.
///
/// This is based on `malloc` on Unix platforms and `HeapAlloc` on Windows,
/// plus related functions.
/// plus related functions. However, it is not valid to mix use of the backing
/// system allocator with `System`, as this implementation may include extra
/// work, such as to serve alignment requests greater than the alignment
/// provided directly by the backing system allocator.
///
/// This type implements the `GlobalAlloc` trait and Rust programs by default
/// work as if they had this definition:

2
library/std/src/fs.rs
View File

@ -19,7 +19,7 @@ use crate::sys::fs as fs_imp;
use crate::sys_common::{AsInner, AsInnerMut, FromInner, IntoInner};
use crate::time::SystemTime;
/// A reference to an open file on the filesystem.
/// An object providing access to an open file on the filesystem.
///
/// An instance of a `File` can be read and/or written depending on what options
/// it was opened with. Files also implement [`Seek`] to alter the logical cursor

3
src/ci/docker/host-x86_64/mingw-check/Dockerfile
View File

@ -45,7 +45,8 @@ ENV SCRIPT python3 ../x.py --stage 2 test src/tools/expand-yaml-anchors && \
python3 ../x.py test --stage 0 src/tools/compiletest && \
python3 ../x.py test --stage 2 src/tools/tidy && \
python3 ../x.py test --stage 0 core alloc std test proc_macro && \
python3 ../x.py doc --stage 0 library/test && \
# Build both public and internal documentation.
RUSTDOCFLAGS="--document-private-items" python3 ../x.py doc --stage 0 library/test && \
/scripts/validate-toolstate.sh && \
/scripts/validate-error-codes.sh && \
reuse lint && \

4
src/librustdoc/html/static/css/rustdoc.css
View File

@ -1883,10 +1883,6 @@ in storage.js plus the media query with (min-width: 701px)
background-color: var(--sidebar-background-color);
}
.source nav:not(.sidebar).sub {
margin-left: 32px;
}
.content {
margin-left: 0px;
}

22
src/test/rustdoc-gui/search-input.goml
View File

@ -1,22 +0,0 @@
// Ensures that the search input border color changes on focus.
goto: file://|DOC_PATH|/test_docs/index.html
local-storage: {"rustdoc-use-system-theme": "false", "rustdoc-theme": "dark"}
reload:
assert-css: (".search-input", {"border-color": "rgb(224, 224, 224)"})
click: ".search-input"
assert-css: (".search-input", {"border-color": "rgb(0, 141, 253)"})
local-storage: {"rustdoc-theme": "light"}
reload:
assert-css: (".search-input", {"border-color": "rgb(224, 224, 224)"})
click: ".search-input"
assert-css: (".search-input", {"border-color": "rgb(102, 175, 233)"})
local-storage: {"rustdoc-theme": "ayu"}
reload:
assert-css: (".search-input", {"border-color": "rgb(92, 103, 115)"})
click: ".search-input"
assert-css: (".search-input", {"border-color": "rgb(92, 103, 115)"})

19
src/test/ui/typeck/assign-non-lval-needs-deref.rs Normal file
View File

@ -0,0 +1,19 @@
// issue #101376
use std::ops::AddAssign;
struct Foo;
impl AddAssign<()> for Foo {
fn add_assign(&mut self, _: ()) {}
}
impl AddAssign<()> for &mut Foo {
fn add_assign(&mut self, _: ()) {}
}
fn main() {
(&mut Foo) += ();
//~^ ERROR invalid left-hand side of assignment
//~| NOTE cannot assign to this expression
//~| HELP consider dereferencing the left-hand side of this operation
}

16
src/test/ui/typeck/assign-non-lval-needs-deref.stderr Normal file
View File

@ -0,0 +1,16 @@
error[E0067]: invalid left-hand side of assignment
--> $DIR/assign-non-lval-needs-deref.rs:15:16
|
LL | (&mut Foo) += ();
| ---------- ^^
| |
| cannot assign to this expression
|
help: consider dereferencing the left-hand side of this operation
|
LL | *(&mut Foo) += ();
| +
error: aborting due to previous error
For more information about this error, try `rustc --explain E0067`.

15
src/tools/unicode-table-generator/src/range_search.rs
View File

@ -1,5 +1,6 @@
#[rustc_const_unstable(feature = "const_unicode_case_lookup", issue = "101400")]
#[inline(always)]
fn bitset_search<
const fn bitset_search<
const N: usize,
const CHUNK_SIZE: usize,
const N1: usize,
@ -15,14 +16,18 @@ fn bitset_search<
let bucket_idx = (needle / 64) as usize;
let chunk_map_idx = bucket_idx / CHUNK_SIZE;
let chunk_piece = bucket_idx % CHUNK_SIZE;
let chunk_idx = if let Some(&v) = chunk_idx_map.get(chunk_map_idx) {
v
// FIXME: const-hack: Revert to `slice::get` after `const_slice_index`
// feature stabilizes.
let chunk_idx = if chunk_map_idx < chunk_idx_map.len() {
chunk_idx_map[chunk_map_idx]
} else {
return false;
};
let idx = bitset_chunk_idx[chunk_idx as usize][chunk_piece] as usize;
let word = if let Some(word) = bitset_canonical.get(idx) {
*word
// FIXME: const-hack: Revert to `slice::get` after `const_slice_index`
// feature stabilizes.
let word = if idx < bitset_canonical.len() {
bitset_canonical[idx]
} else {
let (real_idx, mapping) = bitset_canonicalized[idx - bitset_canonical.len()];
let mut word = bitset_canonical[real_idx as usize];

15
src/tools/unicode-table-generator/src/raw_emitter.rs
View File

@ -76,7 +76,7 @@ impl RawEmitter {
writeln!(
&mut self.file,
"static BITSET_CANONICAL: [u64; {}] = [{}];",
"const BITSET_CANONICAL: &'static [u64; {}] = &[{}];",
canonicalized.canonical_words.len(),
fmt_list(canonicalized.canonical_words.iter().map(|v| Bits(*v))),
)
@ -84,7 +84,7 @@ impl RawEmitter {
self.bytes_used += 8 * canonicalized.canonical_words.len();
writeln!(
&mut self.file,
"static BITSET_MAPPING: [(u8, u8); {}] = [{}];",
"const BITSET_MAPPING: &'static [(u8, u8); {}] = &[{}];",
canonicalized.canonicalized_words.len(),
fmt_list(&canonicalized.canonicalized_words),
)
@ -96,7 +96,12 @@ impl RawEmitter {
self.blank_line();
writeln!(&mut self.file, "pub fn lookup(c: char) -> bool {{").unwrap();
writeln!(
&mut self.file,
r#"#[rustc_const_unstable(feature = "const_unicode_case_lookup", issue = "101400")]"#
)
.unwrap();
writeln!(&mut self.file, "pub const fn lookup(c: char) -> bool {{").unwrap();
writeln!(&mut self.file, " super::bitset_search(",).unwrap();
writeln!(&mut self.file, " c as u32,").unwrap();
writeln!(&mut self.file, " &BITSET_CHUNKS_MAP,").unwrap();
@ -130,7 +135,7 @@ impl RawEmitter {
writeln!(
&mut self.file,
"static BITSET_CHUNKS_MAP: [u8; {}] = [{}];",
"const BITSET_CHUNKS_MAP: &'static [u8; {}] = &[{}];",
chunk_indices.len(),
fmt_list(&chunk_indices),
)
@ -138,7 +143,7 @@ impl RawEmitter {
self.bytes_used += chunk_indices.len();
writeln!(
&mut self.file,
"static BITSET_INDEX_CHUNKS: [[u8; {}]; {}] = [{}];",
"const BITSET_INDEX_CHUNKS: &'static [[u8; {}]; {}] = &[{}];",
chunk_length,
chunks.len(),
fmt_list(chunks.iter()),