diff --git a/.reuse/dep5 b/.reuse/dep5 new file mode 100644 index 0000000000000..e040f73b9e1f7 --- /dev/null +++ b/.reuse/dep5 @@ -0,0 +1,28 @@ +Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ +Files-Excluded: + src/llvm-project + +Files: * +Copyright: The Rust Project Developers (see https://thanks.rust-lang.org) +License: MIT or Apache-2.0 + +Files: library/std/src/sync/mpsc/mpsc_queue.rs + library/std/src/sync/mpsc/spsc_queue.rs +Copyright: 2010-2011 Dmitry Vyukov +License: BSD-2-Clause + +Files: src/librustdoc/html/static/fonts/FiraSans* +Copyright: 2014, Mozilla Foundation, 2014, Telefonica S.A. +License: OFL-1.1 + +Files: src/librustdoc/html/static/fonts/NanumBarun* +Copyright: 2010 NAVER Corporation +License: OFL-1.1 + +Files: src/librustdoc/html/static/fonts/SourceCodePro* +Copyright: 2010, 2012 Adobe Systems Incorporated +License: OFL-1.1 + +Files: src/librustdoc/html/static/fonts/SourceSerif4* +Copyright: 2014-2021 Adobe Systems Incorporated +License: OFL-1.1 diff --git a/Cargo.lock b/Cargo.lock index b8c8466ffe9b5..293fc30903df0 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1421,9 +1421,9 @@ dependencies = [ [[package]] name = "fortanix-sgx-abi" -version = "0.3.3" +version = "0.5.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c56c422ef86062869b2d57ae87270608dc5929969dd130a6e248979cf4fb6ca6" +checksum = "57cafc2274c10fab234f176b25903ce17e690fca7597090d50880e047a0389c5" dependencies = [ "compiler_builtins", "rustc-std-workspace-core", diff --git a/LICENSES/Apache-2.0.txt b/LICENSES/Apache-2.0.txt new file mode 100644 index 0000000000000..137069b823873 --- /dev/null +++ b/LICENSES/Apache-2.0.txt @@ -0,0 +1,73 @@ +Apache License +Version 2.0, January 2004 +http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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These can be included either as stand-alone text files, human-readable headers or in the appropriate machine-readable metadata fields within text or binary files as long as those fields can be easily viewed by the user. + +3) No Modified Version of the Font Software may use the Reserved Font Name(s) unless explicit written permission is granted by the corresponding Copyright Holder. This restriction only applies to the primary font name as presented to the users. + +4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font Software shall not be used to promote, endorse or advertise any Modified Version, except to acknowledge the contribution(s) of the Copyright Holder(s) and the Author(s) or with their explicit written permission. + +5) The Font Software, modified or unmodified, in part or in whole, must be distributed entirely under this license, and must not be distributed under any other license. The requirement for fonts to remain under this license does not apply to any document created using the Font Software. + +TERMINATION + +This license becomes null and void if any of the above conditions are not met. + +DISCLAIMER + +THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE FONT SOFTWARE. diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index 6993245c605ae..8fb5f159136be 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -66,6 +66,7 @@ use rustc_hir::lang_items::LangItem; use rustc_hir::Node; use rustc_middle::dep_graph::DepContext; use rustc_middle::ty::print::with_no_trimmed_paths; +use rustc_middle::ty::relate::{self, RelateResult, TypeRelation}; use rustc_middle::ty::{ self, error::TypeError, Binder, List, Region, Subst, Ty, TyCtxt, TypeFoldable, TypeSuperVisitable, TypeVisitable, @@ -2661,67 +2662,92 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> { /// Float types, respectively). When comparing two ADTs, these rules apply recursively. pub fn same_type_modulo_infer(&self, a: Ty<'tcx>, b: Ty<'tcx>) -> bool { let (a, b) = self.resolve_vars_if_possible((a, b)); - match (a.kind(), b.kind()) { - (&ty::Adt(def_a, substs_a), &ty::Adt(def_b, substs_b)) => { - if def_a != def_b { - return false; - } + SameTypeModuloInfer(self).relate(a, b).is_ok() + } +} - substs_a - .types() - .zip(substs_b.types()) - .all(|(a, b)| self.same_type_modulo_infer(a, b)) - } - (&ty::FnDef(did_a, substs_a), &ty::FnDef(did_b, substs_b)) => { - if did_a != did_b { - return false; - } +struct SameTypeModuloInfer<'a, 'tcx>(&'a InferCtxt<'a, 'tcx>); - substs_a - .types() - .zip(substs_b.types()) - .all(|(a, b)| self.same_type_modulo_infer(a, b)) - } - (&ty::Int(_) | &ty::Uint(_), &ty::Infer(ty::InferTy::IntVar(_))) +impl<'tcx> TypeRelation<'tcx> for SameTypeModuloInfer<'_, 'tcx> { + fn tcx(&self) -> TyCtxt<'tcx> { + self.0.tcx + } + + fn param_env(&self) -> ty::ParamEnv<'tcx> { + // Unused, only for consts which we treat as always equal + ty::ParamEnv::empty() + } + + fn tag(&self) -> &'static str { + "SameTypeModuloInfer" + } + + fn a_is_expected(&self) -> bool { + true + } + + fn relate_with_variance>( + &mut self, + _variance: ty::Variance, + _info: ty::VarianceDiagInfo<'tcx>, + a: T, + b: T, + ) -> relate::RelateResult<'tcx, T> { + self.relate(a, b) + } + + fn tys(&mut self, a: Ty<'tcx>, b: Ty<'tcx>) -> RelateResult<'tcx, Ty<'tcx>> { + match (a.kind(), b.kind()) { + (ty::Int(_) | ty::Uint(_), ty::Infer(ty::InferTy::IntVar(_))) | ( - &ty::Infer(ty::InferTy::IntVar(_)), - &ty::Int(_) | &ty::Uint(_) | &ty::Infer(ty::InferTy::IntVar(_)), + ty::Infer(ty::InferTy::IntVar(_)), + ty::Int(_) | ty::Uint(_) | ty::Infer(ty::InferTy::IntVar(_)), ) - | (&ty::Float(_), &ty::Infer(ty::InferTy::FloatVar(_))) + | (ty::Float(_), ty::Infer(ty::InferTy::FloatVar(_))) | ( - &ty::Infer(ty::InferTy::FloatVar(_)), - &ty::Float(_) | &ty::Infer(ty::InferTy::FloatVar(_)), + ty::Infer(ty::InferTy::FloatVar(_)), + ty::Float(_) | ty::Infer(ty::InferTy::FloatVar(_)), ) - | (&ty::Infer(ty::InferTy::TyVar(_)), _) - | (_, &ty::Infer(ty::InferTy::TyVar(_))) => true, - (&ty::Ref(_, ty_a, mut_a), &ty::Ref(_, ty_b, mut_b)) => { - mut_a == mut_b && self.same_type_modulo_infer(ty_a, ty_b) - } - (&ty::RawPtr(a), &ty::RawPtr(b)) => { - a.mutbl == b.mutbl && self.same_type_modulo_infer(a.ty, b.ty) - } - (&ty::Slice(a), &ty::Slice(b)) => self.same_type_modulo_infer(a, b), - (&ty::Array(a_ty, a_ct), &ty::Array(b_ty, b_ct)) => { - self.same_type_modulo_infer(a_ty, b_ty) && a_ct == b_ct - } - (&ty::Tuple(a), &ty::Tuple(b)) => { - if a.len() != b.len() { - return false; - } - std::iter::zip(a.iter(), b.iter()).all(|(a, b)| self.same_type_modulo_infer(a, b)) - } - (&ty::FnPtr(a), &ty::FnPtr(b)) => { - let a = a.skip_binder().inputs_and_output; - let b = b.skip_binder().inputs_and_output; - if a.len() != b.len() { - return false; - } - std::iter::zip(a.iter(), b.iter()).all(|(a, b)| self.same_type_modulo_infer(a, b)) - } - // FIXME(compiler-errors): This needs to be generalized more - _ => a == b, + | (ty::Infer(ty::InferTy::TyVar(_)), _) + | (_, ty::Infer(ty::InferTy::TyVar(_))) => Ok(a), + (ty::Infer(_), _) | (_, ty::Infer(_)) => Err(TypeError::Mismatch), + _ => relate::super_relate_tys(self, a, b), } } + + fn regions( + &mut self, + a: ty::Region<'tcx>, + b: ty::Region<'tcx>, + ) -> RelateResult<'tcx, ty::Region<'tcx>> { + if (a.is_var() && b.is_free_or_static()) || (b.is_var() && a.is_free_or_static()) || a == b + { + Ok(a) + } else { + Err(TypeError::Mismatch) + } + } + + fn binders( + &mut self, + a: ty::Binder<'tcx, T>, + b: ty::Binder<'tcx, T>, + ) -> relate::RelateResult<'tcx, ty::Binder<'tcx, T>> + where + T: relate::Relate<'tcx>, + { + Ok(ty::Binder::dummy(self.relate(a.skip_binder(), b.skip_binder())?)) + } + + fn consts( + &mut self, + a: ty::Const<'tcx>, + _b: ty::Const<'tcx>, + ) -> relate::RelateResult<'tcx, ty::Const<'tcx>> { + // FIXME(compiler-errors): This could at least do some first-order + // relation + Ok(a) + } } impl<'a, 'tcx> InferCtxt<'a, 'tcx> { diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index 52c3a38861e65..0070575f2136a 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -1617,6 +1617,10 @@ impl<'tcx> Region<'tcx> { _ => self.is_free(), } } + + pub fn is_var(self) -> bool { + matches!(self.kind(), ty::ReVar(_)) + } } /// Type utilities diff --git a/library/alloc/src/lib.rs b/library/alloc/src/lib.rs index 8b6f4054851dd..e10aaefebe6e4 100644 --- a/library/alloc/src/lib.rs +++ b/library/alloc/src/lib.rs @@ -145,6 +145,7 @@ #![feature(unchecked_math)] #![feature(unicode_internals)] #![feature(unsize)] +#![feature(utf8_chunks)] #![feature(std_internals)] // // Language features: diff --git a/library/alloc/src/str.rs b/library/alloc/src/str.rs index d5ed2c4adf4f1..b94b1b1ce216a 100644 --- a/library/alloc/src/str.rs +++ b/library/alloc/src/str.rs @@ -71,6 +71,8 @@ pub use core::str::{RSplit, Split}; pub use core::str::{RSplitN, SplitN}; #[stable(feature = "rust1", since = "1.0.0")] pub use core::str::{RSplitTerminator, SplitTerminator}; +#[unstable(feature = "utf8_chunks", issue = "99543")] +pub use core::str::{Utf8Chunk, Utf8Chunks}; /// Note: `str` in `Concat` is not meaningful here. /// This type parameter of the trait only exists to enable another impl. diff --git a/library/alloc/src/string.rs b/library/alloc/src/string.rs index a5118e5333b82..7bee894d3e404 100644 --- a/library/alloc/src/string.rs +++ b/library/alloc/src/string.rs @@ -58,9 +58,9 @@ use core::ops::Bound::{Excluded, Included, Unbounded}; use core::ops::{self, Index, IndexMut, Range, RangeBounds}; use core::ptr; use core::slice; -#[cfg(not(no_global_oom_handling))] -use core::str::lossy; use core::str::pattern::Pattern; +#[cfg(not(no_global_oom_handling))] +use core::str::Utf8Chunks; #[cfg(not(no_global_oom_handling))] use crate::borrow::{Cow, ToOwned}; @@ -628,11 +628,11 @@ impl String { #[cfg(not(no_global_oom_handling))] #[stable(feature = "rust1", since = "1.0.0")] pub fn from_utf8_lossy(v: &[u8]) -> Cow<'_, str> { - let mut iter = lossy::Utf8Lossy::from_bytes(v).chunks(); + let mut iter = Utf8Chunks::new(v); let first_valid = if let Some(chunk) = iter.next() { - let lossy::Utf8LossyChunk { valid, broken } = chunk; - if broken.is_empty() { + let valid = chunk.valid(); + if chunk.invalid().is_empty() { debug_assert_eq!(valid.len(), v.len()); return Cow::Borrowed(valid); } @@ -647,9 +647,9 @@ impl String { res.push_str(first_valid); res.push_str(REPLACEMENT); - for lossy::Utf8LossyChunk { valid, broken } in iter { - res.push_str(valid); - if !broken.is_empty() { + for chunk in iter { + res.push_str(chunk.valid()); + if !chunk.invalid().is_empty() { res.push_str(REPLACEMENT); } } diff --git a/library/core/src/num/mod.rs b/library/core/src/num/mod.rs index f481399fdcf92..72b6dc2818540 100644 --- a/library/core/src/num/mod.rs +++ b/library/core/src/num/mod.rs @@ -623,7 +623,7 @@ impl u8 { /// /// - U+0021 ..= U+002F `! " # $ % & ' ( ) * + , - . /`, or /// - U+003A ..= U+0040 `: ; < = > ? @`, or - /// - U+005B ..= U+0060 ``[ \ ] ^ _ ` ``, or + /// - U+005B ..= U+0060 `` [ \ ] ^ _ ` ``, or /// - U+007B ..= U+007E `{ | } ~` /// /// # Examples diff --git a/library/core/src/str/lossy.rs b/library/core/src/str/lossy.rs index 6ec1c93908fc7..59f873d1268ce 100644 --- a/library/core/src/str/lossy.rs +++ b/library/core/src/str/lossy.rs @@ -1,51 +1,170 @@ -use crate::char; -use crate::fmt::{self, Write}; -use crate::mem; +use crate::fmt; +use crate::fmt::Formatter; +use crate::fmt::Write; +use crate::iter::FusedIterator; use super::from_utf8_unchecked; use super::validations::utf8_char_width; -/// Lossy UTF-8 string. -#[unstable(feature = "str_internals", issue = "none")] -pub struct Utf8Lossy { - bytes: [u8], +/// An item returned by the [`Utf8Chunks`] iterator. +/// +/// A `Utf8Chunk` stores a sequence of [`u8`] up to the first broken character +/// when decoding a UTF-8 string. +/// +/// # Examples +/// +/// ``` +/// #![feature(utf8_chunks)] +/// +/// use std::str::Utf8Chunks; +/// +/// // An invalid UTF-8 string +/// let bytes = b"foo\xF1\x80bar"; +/// +/// // Decode the first `Utf8Chunk` +/// let chunk = Utf8Chunks::new(bytes).next().unwrap(); +/// +/// // The first three characters are valid UTF-8 +/// assert_eq!("foo", chunk.valid()); +/// +/// // The fourth character is broken +/// assert_eq!(b"\xF1\x80", chunk.invalid()); +/// ``` +#[unstable(feature = "utf8_chunks", issue = "99543")] +#[derive(Clone, Debug, PartialEq, Eq)] +pub struct Utf8Chunk<'a> { + valid: &'a str, + invalid: &'a [u8], } -impl Utf8Lossy { +impl<'a> Utf8Chunk<'a> { + /// Returns the next validated UTF-8 substring. + /// + /// This substring can be empty at the start of the string or between + /// broken UTF-8 characters. #[must_use] - pub fn from_bytes(bytes: &[u8]) -> &Utf8Lossy { - // SAFETY: Both use the same memory layout, and UTF-8 correctness isn't required. - unsafe { mem::transmute(bytes) } + #[unstable(feature = "utf8_chunks", issue = "99543")] + pub fn valid(&self) -> &'a str { + self.valid } - pub fn chunks(&self) -> Utf8LossyChunksIter<'_> { - Utf8LossyChunksIter { source: &self.bytes } + /// Returns the invalid sequence that caused a failure. + /// + /// The returned slice will have a maximum length of 3 and starts after the + /// substring given by [`valid`]. Decoding will resume after this sequence. + /// + /// If empty, this is the last chunk in the string. If non-empty, an + /// unexpected byte was encountered or the end of the input was reached + /// unexpectedly. + /// + /// Lossy decoding would replace this sequence with [`U+FFFD REPLACEMENT + /// CHARACTER`]. + /// + /// [`valid`]: Self::valid + /// [`U+FFFD REPLACEMENT CHARACTER`]: crate::char::REPLACEMENT_CHARACTER + #[must_use] + #[unstable(feature = "utf8_chunks", issue = "99543")] + pub fn invalid(&self) -> &'a [u8] { + self.invalid } } -/// Iterator over lossy UTF-8 string -#[must_use = "iterators are lazy and do nothing unless consumed"] +#[must_use] +#[unstable(feature = "str_internals", issue = "none")] +pub struct Debug<'a>(&'a [u8]); + #[unstable(feature = "str_internals", issue = "none")] -#[allow(missing_debug_implementations)] -pub struct Utf8LossyChunksIter<'a> { +impl fmt::Debug for Debug<'_> { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + f.write_char('"')?; + + for chunk in Utf8Chunks::new(self.0) { + // Valid part. + // Here we partially parse UTF-8 again which is suboptimal. + { + let valid = chunk.valid(); + let mut from = 0; + for (i, c) in valid.char_indices() { + let esc = c.escape_debug(); + // If char needs escaping, flush backlog so far and write, else skip + if esc.len() != 1 { + f.write_str(&valid[from..i])?; + for c in esc { + f.write_char(c)?; + } + from = i + c.len_utf8(); + } + } + f.write_str(&valid[from..])?; + } + + // Broken parts of string as hex escape. + for &b in chunk.invalid() { + write!(f, "\\x{:02X}", b)?; + } + } + + f.write_char('"') + } +} + +/// An iterator used to decode a slice of mostly UTF-8 bytes to string slices +/// ([`&str`]) and byte slices ([`&[u8]`][byteslice]). +/// +/// If you want a simple conversion from UTF-8 byte slices to string slices, +/// [`from_utf8`] is easier to use. +/// +/// [byteslice]: slice +/// [`from_utf8`]: super::from_utf8 +/// +/// # Examples +/// +/// This can be used to create functionality similar to +/// [`String::from_utf8_lossy`] without allocating heap memory: +/// +/// ``` +/// #![feature(utf8_chunks)] +/// +/// use std::str::Utf8Chunks; +/// +/// fn from_utf8_lossy(input: &[u8], mut push: F) where F: FnMut(&str) { +/// for chunk in Utf8Chunks::new(input) { +/// push(chunk.valid()); +/// +/// if !chunk.invalid().is_empty() { +/// push("\u{FFFD}"); +/// } +/// } +/// } +/// ``` +/// +/// [`String::from_utf8_lossy`]: ../../std/string/struct.String.html#method.from_utf8_lossy +#[must_use = "iterators are lazy and do nothing unless consumed"] +#[unstable(feature = "utf8_chunks", issue = "99543")] +#[derive(Clone)] +pub struct Utf8Chunks<'a> { source: &'a [u8], } -#[unstable(feature = "str_internals", issue = "none")] -#[derive(PartialEq, Eq, Debug)] -pub struct Utf8LossyChunk<'a> { - /// Sequence of valid chars. - /// Can be empty between broken UTF-8 chars. - pub valid: &'a str, - /// Single broken char, empty if none. - /// Empty iff iterator item is last. - pub broken: &'a [u8], +impl<'a> Utf8Chunks<'a> { + /// Creates a new iterator to decode the bytes. + #[unstable(feature = "utf8_chunks", issue = "99543")] + pub fn new(bytes: &'a [u8]) -> Self { + Self { source: bytes } + } + + #[doc(hidden)] + #[unstable(feature = "str_internals", issue = "none")] + pub fn debug(&self) -> Debug<'_> { + Debug(self.source) + } } -impl<'a> Iterator for Utf8LossyChunksIter<'a> { - type Item = Utf8LossyChunk<'a>; +#[unstable(feature = "utf8_chunks", issue = "99543")] +impl<'a> Iterator for Utf8Chunks<'a> { + type Item = Utf8Chunk<'a>; - fn next(&mut self) -> Option> { + fn next(&mut self) -> Option> { if self.source.is_empty() { return None; } @@ -130,71 +249,22 @@ impl<'a> Iterator for Utf8LossyChunksIter<'a> { // SAFETY: `valid_up_to <= i` because it is only ever assigned via // `valid_up_to = i` and `i` only increases. - let (valid, broken) = unsafe { inspected.split_at_unchecked(valid_up_to) }; + let (valid, invalid) = unsafe { inspected.split_at_unchecked(valid_up_to) }; - Some(Utf8LossyChunk { + Some(Utf8Chunk { // SAFETY: All bytes up to `valid_up_to` are valid UTF-8. valid: unsafe { from_utf8_unchecked(valid) }, - broken, + invalid, }) } } -impl fmt::Display for Utf8Lossy { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - // If we're the empty string then our iterator won't actually yield - // anything, so perform the formatting manually - if self.bytes.is_empty() { - return "".fmt(f); - } - - for Utf8LossyChunk { valid, broken } in self.chunks() { - // If we successfully decoded the whole chunk as a valid string then - // we can return a direct formatting of the string which will also - // respect various formatting flags if possible. - if valid.len() == self.bytes.len() { - assert!(broken.is_empty()); - return valid.fmt(f); - } - - f.write_str(valid)?; - if !broken.is_empty() { - f.write_char(char::REPLACEMENT_CHARACTER)?; - } - } - Ok(()) - } -} - -impl fmt::Debug for Utf8Lossy { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_char('"')?; +#[unstable(feature = "utf8_chunks", issue = "99543")] +impl FusedIterator for Utf8Chunks<'_> {} - for Utf8LossyChunk { valid, broken } in self.chunks() { - // Valid part. - // Here we partially parse UTF-8 again which is suboptimal. - { - let mut from = 0; - for (i, c) in valid.char_indices() { - let esc = c.escape_debug(); - // If char needs escaping, flush backlog so far and write, else skip - if esc.len() != 1 { - f.write_str(&valid[from..i])?; - for c in esc { - f.write_char(c)?; - } - from = i + c.len_utf8(); - } - } - f.write_str(&valid[from..])?; - } - - // Broken parts of string as hex escape. - for &b in broken { - write!(f, "\\x{:02x}", b)?; - } - } - - f.write_char('"') +#[unstable(feature = "utf8_chunks", issue = "99543")] +impl fmt::Debug for Utf8Chunks<'_> { + fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { + f.debug_struct("Utf8Chunks").field("source", &self.debug()).finish() } } diff --git a/library/core/src/str/mod.rs b/library/core/src/str/mod.rs index ee66895a7ed2a..e44e025aaf169 100644 --- a/library/core/src/str/mod.rs +++ b/library/core/src/str/mod.rs @@ -22,9 +22,9 @@ use crate::slice::{self, SliceIndex}; pub mod pattern; -#[unstable(feature = "str_internals", issue = "none")] -#[allow(missing_docs)] -pub mod lossy; +mod lossy; +#[unstable(feature = "utf8_chunks", issue = "99543")] +pub use lossy::{Utf8Chunk, Utf8Chunks}; #[stable(feature = "rust1", since = "1.0.0")] pub use converts::{from_utf8, from_utf8_unchecked}; diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs index 09f1500f564cf..59510d3cc2ae0 100644 --- a/library/core/tests/lib.rs +++ b/library/core/tests/lib.rs @@ -99,6 +99,7 @@ #![feature(waker_getters)] #![feature(slice_flatten)] #![feature(provide_any)] +#![feature(utf8_chunks)] #![deny(unsafe_op_in_unsafe_fn)] extern crate test; diff --git a/library/core/tests/str_lossy.rs b/library/core/tests/str_lossy.rs index d4b47a4708e4b..9d3f0b65fdb94 100644 --- a/library/core/tests/str_lossy.rs +++ b/library/core/tests/str_lossy.rs @@ -1,85 +1,85 @@ -use core::str::lossy::*; +use core::str::Utf8Chunks; #[test] fn chunks() { - let mut iter = Utf8Lossy::from_bytes(b"hello").chunks(); - assert_eq!(Some(Utf8LossyChunk { valid: "hello", broken: b"" }), iter.next()); - assert_eq!(None, iter.next()); + macro_rules! assert_chunks { + ( $string:expr, $(($valid:expr, $invalid:expr)),* $(,)? ) => {{ + let mut iter = Utf8Chunks::new($string); + $( + let chunk = iter.next().expect("missing chunk"); + assert_eq!($valid, chunk.valid()); + assert_eq!($invalid, chunk.invalid()); + )* + assert_eq!(None, iter.next()); + }}; + } - let mut iter = Utf8Lossy::from_bytes("ศไทย中华Việt Nam".as_bytes()).chunks(); - assert_eq!(Some(Utf8LossyChunk { valid: "ศไทย中华Việt Nam", broken: b"" }), iter.next()); - assert_eq!(None, iter.next()); - - let mut iter = Utf8Lossy::from_bytes(b"Hello\xC2 There\xFF Goodbye").chunks(); - assert_eq!(Some(Utf8LossyChunk { valid: "Hello", broken: b"\xC2" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: " There", broken: b"\xFF" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: " Goodbye", broken: b"" }), iter.next()); - assert_eq!(None, iter.next()); - - let mut iter = Utf8Lossy::from_bytes(b"Hello\xC0\x80 There\xE6\x83 Goodbye").chunks(); - assert_eq!(Some(Utf8LossyChunk { valid: "Hello", broken: b"\xC0" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: " There", broken: b"\xE6\x83" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: " Goodbye", broken: b"" }), iter.next()); - assert_eq!(None, iter.next()); - - let mut iter = Utf8Lossy::from_bytes(b"\xF5foo\xF5\x80bar").chunks(); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xF5" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "foo", broken: b"\xF5" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "bar", broken: b"" }), iter.next()); - assert_eq!(None, iter.next()); - - let mut iter = Utf8Lossy::from_bytes(b"\xF1foo\xF1\x80bar\xF1\x80\x80baz").chunks(); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xF1" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "foo", broken: b"\xF1\x80" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "bar", broken: b"\xF1\x80\x80" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "baz", broken: b"" }), iter.next()); - assert_eq!(None, iter.next()); - - let mut iter = Utf8Lossy::from_bytes(b"\xF4foo\xF4\x80bar\xF4\xBFbaz").chunks(); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xF4" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "foo", broken: b"\xF4\x80" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "bar", broken: b"\xF4" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xBF" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "baz", broken: b"" }), iter.next()); - assert_eq!(None, iter.next()); - - let mut iter = Utf8Lossy::from_bytes(b"\xF0\x80\x80\x80foo\xF0\x90\x80\x80bar").chunks(); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xF0" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "foo\u{10000}bar", broken: b"" }), iter.next()); - assert_eq!(None, iter.next()); + assert_chunks!(b"hello", ("hello", b"")); + assert_chunks!("ศไทย中华Việt Nam".as_bytes(), ("ศไทย中华Việt Nam", b"")); + assert_chunks!( + b"Hello\xC2 There\xFF Goodbye", + ("Hello", b"\xC2"), + (" There", b"\xFF"), + (" Goodbye", b""), + ); + assert_chunks!( + b"Hello\xC0\x80 There\xE6\x83 Goodbye", + ("Hello", b"\xC0"), + ("", b"\x80"), + (" There", b"\xE6\x83"), + (" Goodbye", b""), + ); + assert_chunks!( + b"\xF5foo\xF5\x80bar", + ("", b"\xF5"), + ("foo", b"\xF5"), + ("", b"\x80"), + ("bar", b""), + ); + assert_chunks!( + b"\xF1foo\xF1\x80bar\xF1\x80\x80baz", + ("", b"\xF1"), + ("foo", b"\xF1\x80"), + ("bar", b"\xF1\x80\x80"), + ("baz", b""), + ); + assert_chunks!( + b"\xF4foo\xF4\x80bar\xF4\xBFbaz", + ("", b"\xF4"), + ("foo", b"\xF4\x80"), + ("bar", b"\xF4"), + ("", b"\xBF"), + ("baz", b""), + ); + assert_chunks!( + b"\xF0\x80\x80\x80foo\xF0\x90\x80\x80bar", + ("", b"\xF0"), + ("", b"\x80"), + ("", b"\x80"), + ("", b"\x80"), + ("foo\u{10000}bar", b""), + ); // surrogates - let mut iter = Utf8Lossy::from_bytes(b"\xED\xA0\x80foo\xED\xBF\xBFbar").chunks(); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xED" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xA0" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\x80" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "foo", broken: b"\xED" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xBF" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "", broken: b"\xBF" }), iter.next()); - assert_eq!(Some(Utf8LossyChunk { valid: "bar", broken: b"" }), iter.next()); - assert_eq!(None, iter.next()); -} - -#[test] -fn display() { - assert_eq!( - "Hello\u{FFFD}\u{FFFD} There\u{FFFD} Goodbye", - &Utf8Lossy::from_bytes(b"Hello\xC0\x80 There\xE6\x83 Goodbye").to_string() + assert_chunks!( + b"\xED\xA0\x80foo\xED\xBF\xBFbar", + ("", b"\xED"), + ("", b"\xA0"), + ("", b"\x80"), + ("foo", b"\xED"), + ("", b"\xBF"), + ("", b"\xBF"), + ("bar", b""), ); } #[test] fn debug() { assert_eq!( - "\"Hello\\xc0\\x80 There\\xe6\\x83 Goodbye\\u{10d4ea}\"", + "\"Hello\\xC0\\x80 There\\xE6\\x83 Goodbye\\u{10d4ea}\"", &format!( "{:?}", - Utf8Lossy::from_bytes(b"Hello\xC0\x80 There\xE6\x83 Goodbye\xf4\x8d\x93\xaa") - ) + Utf8Chunks::new(b"Hello\xC0\x80 There\xE6\x83 Goodbye\xf4\x8d\x93\xaa").debug(), + ), ); } diff --git a/library/std/Cargo.toml b/library/std/Cargo.toml index 229e546e08549..3da9565a86d78 100644 --- a/library/std/Cargo.toml +++ b/library/std/Cargo.toml @@ -39,7 +39,7 @@ rand = "0.7" dlmalloc = { version = "0.2.3", features = ['rustc-dep-of-std'] } [target.x86_64-fortanix-unknown-sgx.dependencies] -fortanix-sgx-abi = { version = "0.3.2", features = ['rustc-dep-of-std'] } +fortanix-sgx-abi = { version = "0.5.0", features = ['rustc-dep-of-std'] } [target.'cfg(target_os = "hermit")'.dependencies] hermit-abi = { version = "0.2.0", features = ['rustc-dep-of-std'] } diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index a8d6645794ae5..8627be854225f 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -258,6 +258,7 @@ #![feature(staged_api)] #![feature(thread_local)] #![feature(try_blocks)] +#![feature(utf8_chunks)] // // Library features (core): #![feature(array_error_internals)] diff --git a/library/std/src/os/fortanix_sgx/mod.rs b/library/std/src/os/fortanix_sgx/mod.rs index a40dabe190ae0..da100b689db84 100644 --- a/library/std/src/os/fortanix_sgx/mod.rs +++ b/library/std/src/os/fortanix_sgx/mod.rs @@ -26,6 +26,7 @@ pub mod usercalls { free, insecure_time, launch_thread, read, read_alloc, send, wait, write, }; pub use crate::sys::abi::usercalls::raw::{do_usercall, Usercalls as UsercallNrs}; + pub use crate::sys::abi::usercalls::raw::{Register, RegisterArgument, ReturnValue}; // fortanix-sgx-abi re-exports pub use crate::sys::abi::usercalls::raw::Error; diff --git a/library/std/src/sys/sgx/abi/usercalls/alloc.rs b/library/std/src/sys/sgx/abi/usercalls/alloc.rs index 34634da44de67..fe8392f78cd1e 100644 --- a/library/std/src/sys/sgx/abi/usercalls/alloc.rs +++ b/library/std/src/sys/sgx/abi/usercalls/alloc.rs @@ -56,6 +56,8 @@ unsafe impl UserSafeSized for Usercall {} #[unstable(feature = "sgx_platform", issue = "56975")] unsafe impl UserSafeSized for Return {} #[unstable(feature = "sgx_platform", issue = "56975")] +unsafe impl UserSafeSized for Cancel {} +#[unstable(feature = "sgx_platform", issue = "56975")] unsafe impl UserSafeSized for [T; 2] {} /// A type that can be represented in memory as one or more `UserSafeSized`s. diff --git a/library/std/src/sys/sgx/abi/usercalls/mod.rs b/library/std/src/sys/sgx/abi/usercalls/mod.rs index 79d1db5e1c50d..e19e843267a90 100644 --- a/library/std/src/sys/sgx/abi/usercalls/mod.rs +++ b/library/std/src/sys/sgx/abi/usercalls/mod.rs @@ -292,12 +292,17 @@ fn check_os_error(err: Result) -> i32 { } } -trait FromSgxResult { +/// Translate the raw result of an SGX usercall. +#[unstable(feature = "sgx_platform", issue = "56975")] +pub trait FromSgxResult { + /// Return type type Return; + /// Translate the raw result of an SGX usercall. fn from_sgx_result(self) -> IoResult; } +#[unstable(feature = "sgx_platform", issue = "56975")] impl FromSgxResult for (Result, T) { type Return = T; @@ -310,6 +315,7 @@ impl FromSgxResult for (Result, T) { } } +#[unstable(feature = "sgx_platform", issue = "56975")] impl FromSgxResult for Result { type Return = (); diff --git a/library/std/src/sys/sgx/abi/usercalls/raw.rs b/library/std/src/sys/sgx/abi/usercalls/raw.rs index 4267b96ccd504..10c1456d4fd05 100644 --- a/library/std/src/sys/sgx/abi/usercalls/raw.rs +++ b/library/std/src/sys/sgx/abi/usercalls/raw.rs @@ -37,14 +37,23 @@ pub unsafe fn do_usercall( (a, b) } -type Register = u64; +/// A value passed or returned in a CPU register. +#[unstable(feature = "sgx_platform", issue = "56975")] +pub type Register = u64; -trait RegisterArgument { +/// Translate a type from/to Register to be used as an argument. +#[unstable(feature = "sgx_platform", issue = "56975")] +pub trait RegisterArgument { + /// Translate a Register to Self. fn from_register(_: Register) -> Self; + /// Translate self to a Register. fn into_register(self) -> Register; } -trait ReturnValue { +/// Translate a pair of Registers to the raw usercall return value. +#[unstable(feature = "sgx_platform", issue = "56975")] +pub trait ReturnValue { + /// Translate a pair of Registers to the raw usercall return value. fn from_registers(call: &'static str, regs: (Register, Register)) -> Self; } @@ -68,6 +77,7 @@ macro_rules! define_usercalls { macro_rules! define_ra { (< $i:ident > $t:ty) => { + #[unstable(feature = "sgx_platform", issue = "56975")] impl<$i> RegisterArgument for $t { fn from_register(a: Register) -> Self { a as _ @@ -78,6 +88,7 @@ macro_rules! define_ra { } }; ($i:ty as $t:ty) => { + #[unstable(feature = "sgx_platform", issue = "56975")] impl RegisterArgument for $t { fn from_register(a: Register) -> Self { a as $i as _ @@ -88,6 +99,7 @@ macro_rules! define_ra { } }; ($t:ty) => { + #[unstable(feature = "sgx_platform", issue = "56975")] impl RegisterArgument for $t { fn from_register(a: Register) -> Self { a as _ @@ -112,6 +124,7 @@ define_ra!(usize as isize); define_ra!( *const T); define_ra!( *mut T); +#[unstable(feature = "sgx_platform", issue = "56975")] impl RegisterArgument for bool { fn from_register(a: Register) -> bool { if a != 0 { true } else { false } @@ -121,6 +134,7 @@ impl RegisterArgument for bool { } } +#[unstable(feature = "sgx_platform", issue = "56975")] impl RegisterArgument for Option> { fn from_register(a: Register) -> Option> { NonNull::new(a as _) @@ -130,12 +144,14 @@ impl RegisterArgument for Option> { } } +#[unstable(feature = "sgx_platform", issue = "56975")] impl ReturnValue for ! { fn from_registers(call: &'static str, _regs: (Register, Register)) -> Self { rtabort!("Usercall {call}: did not expect to be re-entered"); } } +#[unstable(feature = "sgx_platform", issue = "56975")] impl ReturnValue for () { fn from_registers(call: &'static str, usercall_retval: (Register, Register)) -> Self { rtassert!(usercall_retval.0 == 0); @@ -144,6 +160,7 @@ impl ReturnValue for () { } } +#[unstable(feature = "sgx_platform", issue = "56975")] impl ReturnValue for T { fn from_registers(call: &'static str, usercall_retval: (Register, Register)) -> Self { rtassert!(usercall_retval.1 == 0); @@ -151,6 +168,7 @@ impl ReturnValue for T { } } +#[unstable(feature = "sgx_platform", issue = "56975")] impl ReturnValue for (T, U) { fn from_registers(_call: &'static str, regs: (Register, Register)) -> Self { (T::from_register(regs.0), U::from_register(regs.1)) diff --git a/library/std/src/sys/unix/os_str.rs b/library/std/src/sys/unix/os_str.rs index ccbc182240cf3..017e2af29d4f4 100644 --- a/library/std/src/sys/unix/os_str.rs +++ b/library/std/src/sys/unix/os_str.rs @@ -11,7 +11,7 @@ use crate::str; use crate::sync::Arc; use crate::sys_common::{AsInner, IntoInner}; -use core::str::lossy::{Utf8Lossy, Utf8LossyChunk}; +use core::str::Utf8Chunks; #[cfg(test)] #[path = "../unix/os_str/tests.rs"] @@ -29,26 +29,32 @@ pub struct Slice { } impl fmt::Debug for Slice { - fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - // Writes out a valid unicode string with the correct escape sequences - - formatter.write_str("\"")?; - for Utf8LossyChunk { valid, broken } in Utf8Lossy::from_bytes(&self.inner).chunks() { - for c in valid.chars().flat_map(|c| c.escape_debug()) { - formatter.write_char(c)? - } - - for b in broken { - write!(formatter, "\\x{:02X}", b)?; - } - } - formatter.write_str("\"") + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::Debug::fmt(&Utf8Chunks::new(&self.inner).debug(), f) } } impl fmt::Display for Slice { - fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - fmt::Display::fmt(&Utf8Lossy::from_bytes(&self.inner), formatter) + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + // If we're the empty string then our iterator won't actually yield + // anything, so perform the formatting manually + if self.inner.is_empty() { + return "".fmt(f); + } + + for chunk in Utf8Chunks::new(&self.inner) { + let valid = chunk.valid(); + // If we successfully decoded the whole chunk as a valid string then + // we can return a direct formatting of the string which will also + // respect various formatting flags if possible. + if chunk.invalid().is_empty() { + return valid.fmt(f); + } + + f.write_str(valid)?; + f.write_char(char::REPLACEMENT_CHARACTER)?; + } + Ok(()) } } diff --git a/library/std/src/sys/unix/os_str/tests.rs b/library/std/src/sys/unix/os_str/tests.rs index 213277f01f2a6..22ba0c9235041 100644 --- a/library/std/src/sys/unix/os_str/tests.rs +++ b/library/std/src/sys/unix/os_str/tests.rs @@ -8,3 +8,11 @@ fn slice_debug_output() { assert_eq!(output, expected); } + +#[test] +fn display() { + assert_eq!( + "Hello\u{FFFD}\u{FFFD} There\u{FFFD} Goodbye", + Slice::from_u8_slice(b"Hello\xC0\x80 There\xE6\x83 Goodbye").to_string(), + ); +} diff --git a/library/std/src/sys/windows/c.rs b/library/std/src/sys/windows/c.rs index c5a30f8bac86d..ef3f6a9ba1755 100644 --- a/library/std/src/sys/windows/c.rs +++ b/library/std/src/sys/windows/c.rs @@ -228,6 +228,8 @@ pub const IPV6_ADD_MEMBERSHIP: c_int = 12; pub const IPV6_DROP_MEMBERSHIP: c_int = 13; pub const MSG_PEEK: c_int = 0x2; +pub const LOAD_LIBRARY_SEARCH_SYSTEM32: u32 = 0x800; + #[repr(C)] #[derive(Copy, Clone)] pub struct linger { @@ -1030,6 +1032,7 @@ extern "system" { pub fn GetProcAddress(handle: HMODULE, name: LPCSTR) -> *mut c_void; pub fn GetModuleHandleA(lpModuleName: LPCSTR) -> HMODULE; pub fn GetModuleHandleW(lpModuleName: LPCWSTR) -> HMODULE; + pub fn LoadLibraryExA(lplibfilename: *const i8, hfile: HANDLE, dwflags: u32) -> HINSTANCE; pub fn GetSystemTimeAsFileTime(lpSystemTimeAsFileTime: LPFILETIME); pub fn GetSystemInfo(lpSystemInfo: LPSYSTEM_INFO); @@ -1250,21 +1253,16 @@ compat_fn_with_fallback! { } } -compat_fn_with_fallback! { - pub static SYNCH_API: &CStr = ansi_str!("api-ms-win-core-synch-l1-2-0"); - #[allow(unused)] - fn WakeByAddressSingle(Address: LPVOID) -> () { - // This fallback is currently tightly coupled to its use in Parker::unpark. - // - // FIXME: If `WakeByAddressSingle` needs to be used anywhere other than - // Parker::unpark then this fallback will be wrong and will need to be decoupled. - crate::sys::windows::thread_parker::unpark_keyed_event(Address) - } +compat_fn_optional! { + crate::sys::compat::load_synch_functions(); + pub fn WaitOnAddress( + Address: LPVOID, + CompareAddress: LPVOID, + AddressSize: SIZE_T, + dwMilliseconds: DWORD + ); + pub fn WakeByAddressSingle(Address: LPVOID); } -pub use crate::sys::compat::WaitOnAddress; -// Change exported name of `WakeByAddressSingle` to make the strange fallback -// behaviour clear. -pub use WakeByAddressSingle::call as wake_by_address_single_or_unpark_keyed_event; compat_fn_with_fallback! { pub static NTDLL: &CStr = ansi_str!("ntdll"); diff --git a/library/std/src/sys/windows/compat.rs b/library/std/src/sys/windows/compat.rs index 473544c4d4f7b..9c8ddc3aa1d25 100644 --- a/library/std/src/sys/windows/compat.rs +++ b/library/std/src/sys/windows/compat.rs @@ -21,6 +21,7 @@ use crate::ffi::{c_void, CStr}; use crate::ptr::NonNull; +use crate::sync::atomic::{AtomicBool, Ordering}; use crate::sys::c; /// Helper macro for creating CStrs from literals and symbol names. @@ -74,6 +75,20 @@ impl Module { NonNull::new(module).map(Self) } + /// Load the library (if not already loaded) + /// + /// # Safety + /// + /// The module must not be unloaded. + pub unsafe fn load_system_library(name: &CStr) -> Option { + let module = c::LoadLibraryExA( + name.as_ptr(), + crate::ptr::null_mut(), + c::LOAD_LIBRARY_SEARCH_SYSTEM32, + ); + NonNull::new(module).map(Self) + } + // Try to get the address of a function. pub fn proc_address(self, name: &CStr) -> Option> { // SAFETY: @@ -144,61 +159,63 @@ macro_rules! compat_fn_with_fallback { )*) } -/// Optionally load `WaitOnAddress`. -/// Unlike the dynamic loading described above, this does not have a fallback. +/// Optionally loaded functions. /// -/// This is rexported from sys::c. You should prefer to import -/// from there in case this changes again in the future. -pub mod WaitOnAddress { - use super::*; - use crate::mem; - use crate::ptr; - use crate::sync::atomic::{AtomicBool, AtomicPtr, Ordering}; - use crate::sys::c; - - static MODULE_NAME: &CStr = ansi_str!("api-ms-win-core-synch-l1-2-0"); - static SYMBOL_NAME: &CStr = ansi_str!("WaitOnAddress"); - - // WaitOnAddress function signature. - type F = unsafe extern "system" fn( - Address: c::LPVOID, - CompareAddress: c::LPVOID, - AddressSize: c::SIZE_T, - dwMilliseconds: c::DWORD, - ); - - // A place to store the loaded function atomically. - static WAIT_ON_ADDRESS: AtomicPtr = AtomicPtr::new(ptr::null_mut()); - - // We can skip trying to load again if we already tried. - static LOAD_MODULE: AtomicBool = AtomicBool::new(true); - - #[inline(always)] - pub fn option() -> Option { - let f = WAIT_ON_ADDRESS.load(Ordering::Acquire); - if !f.is_null() { Some(unsafe { mem::transmute(f) }) } else { try_load() } - } +/// Actual loading of the function defers to $load_functions. +macro_rules! compat_fn_optional { + ($load_functions:expr; + $( + $(#[$meta:meta])* + $vis:vis fn $symbol:ident($($argname:ident: $argtype:ty),*) $(-> $rettype:ty)?; + )+) => ( + $( + pub mod $symbol { + use super::*; + use crate::ffi::c_void; + use crate::mem; + use crate::ptr::{self, NonNull}; + use crate::sync::atomic::{AtomicPtr, Ordering}; + + pub(in crate::sys) static PTR: AtomicPtr = AtomicPtr::new(ptr::null_mut()); + + type F = unsafe extern "system" fn($($argtype),*) $(-> $rettype)?; + + #[inline(always)] + pub fn option() -> Option { + let f = PTR.load(Ordering::Acquire); + if !f.is_null() { Some(unsafe { mem::transmute(f) }) } else { try_load() } + } - #[cold] - fn try_load() -> Option { - if LOAD_MODULE.load(Ordering::Acquire) { - // load the module - let mut wait_on_address = None; - if let Some(func) = try_load_inner() { - WAIT_ON_ADDRESS.store(func.as_ptr(), Ordering::Release); - wait_on_address = Some(unsafe { mem::transmute(func) }); + #[cold] + fn try_load() -> Option { + $load_functions; + NonNull::new(PTR.load(Ordering::Acquire)).map(|f| unsafe { mem::transmute(f) }) + } } - // Don't try to load the module again even if loading failed. - LOAD_MODULE.store(false, Ordering::Release); - wait_on_address - } else { - None - } - } + )+ + ) +} - // In the future this could be a `try` block but until then I think it's a - // little bit cleaner as a separate function. - fn try_load_inner() -> Option> { - unsafe { Module::new(MODULE_NAME)?.proc_address(SYMBOL_NAME) } +/// Load all needed functions from "api-ms-win-core-synch-l1-2-0". +pub(super) fn load_synch_functions() { + fn try_load() -> Option<()> { + const MODULE_NAME: &CStr = ansi_str!("api-ms-win-core-synch-l1-2-0"); + const WAIT_ON_ADDRESS: &CStr = ansi_str!("WaitOnAddress"); + const WAKE_BY_ADDRESS_SINGLE: &CStr = ansi_str!("WakeByAddressSingle"); + + // Try loading the library and all the required functions. + // If any step fails, then they all fail. + let library = unsafe { Module::load_system_library(MODULE_NAME) }?; + let wait_on_address = library.proc_address(WAIT_ON_ADDRESS)?; + let wake_by_address_single = library.proc_address(WAKE_BY_ADDRESS_SINGLE)?; + + c::WaitOnAddress::PTR.store(wait_on_address.as_ptr(), Ordering::Release); + c::WakeByAddressSingle::PTR.store(wake_by_address_single.as_ptr(), Ordering::Release); + Some(()) } + + // Try to load the module but skip loading if a previous attempt failed. + static LOAD_MODULE: AtomicBool = AtomicBool::new(true); + let module_loaded = LOAD_MODULE.load(Ordering::Acquire) && try_load().is_some(); + LOAD_MODULE.store(module_loaded, Ordering::Release) } diff --git a/library/std/src/sys/windows/thread_parker.rs b/library/std/src/sys/windows/thread_parker.rs index 16863c9903ac7..2f7ae863b6a45 100644 --- a/library/std/src/sys/windows/thread_parker.rs +++ b/library/std/src/sys/windows/thread_parker.rs @@ -198,8 +198,18 @@ impl Parker { // with park(). if self.state.swap(NOTIFIED, Release) == PARKED { unsafe { - // This calls either WakeByAddressSingle or unpark_keyed_event (see below). - c::wake_by_address_single_or_unpark_keyed_event(self.ptr()); + if let Some(wake_by_address_single) = c::WakeByAddressSingle::option() { + wake_by_address_single(self.ptr()); + } else { + // If we run NtReleaseKeyedEvent before the waiting thread runs + // NtWaitForKeyedEvent, this (shortly) blocks until we can wake it up. + // If the waiting thread wakes up before we run NtReleaseKeyedEvent + // (e.g. due to a timeout), this blocks until we do wake up a thread. + // To prevent this thread from blocking indefinitely in that case, + // park_impl() will, after seeing the state set to NOTIFIED after + // waking up, call NtWaitForKeyedEvent again to unblock us. + c::NtReleaseKeyedEvent(keyed_event_handle(), self.ptr(), 0, ptr::null_mut()); + } } } } @@ -209,19 +219,6 @@ impl Parker { } } -// This function signature makes it compatible with c::WakeByAddressSingle -// so that it can be used as a fallback for that function. -pub unsafe extern "C" fn unpark_keyed_event(address: c::LPVOID) { - // If we run NtReleaseKeyedEvent before the waiting thread runs - // NtWaitForKeyedEvent, this (shortly) blocks until we can wake it up. - // If the waiting thread wakes up before we run NtReleaseKeyedEvent - // (e.g. due to a timeout), this blocks until we do wake up a thread. - // To prevent this thread from blocking indefinitely in that case, - // park_impl() will, after seeing the state set to NOTIFIED after - // waking up, call NtWaitForKeyedEvent again to unblock us. - c::NtReleaseKeyedEvent(keyed_event_handle(), address, 0, ptr::null_mut()); -} - fn keyed_event_handle() -> c::HANDLE { const INVALID: c::HANDLE = ptr::invalid_mut(!0); static HANDLE: AtomicPtr = AtomicPtr::new(INVALID); diff --git a/src/ci/docker/host-x86_64/mingw-check/Dockerfile b/src/ci/docker/host-x86_64/mingw-check/Dockerfile index 9ee84f420b952..c6723d91c8bb4 100644 --- a/src/ci/docker/host-x86_64/mingw-check/Dockerfile +++ b/src/ci/docker/host-x86_64/mingw-check/Dockerfile @@ -1,4 +1,7 @@ FROM ubuntu:18.04 +# FIXME: when bumping the version, remove the Python 3.6-specific changes in +# the reuse-requirements.in file, regenerate reuse-requirements.txt and remove +# this comment. RUN apt-get update && apt-get install -y --no-install-recommends \ g++ \ @@ -8,6 +11,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ curl \ ca-certificates \ python3 \ + python3-pip \ + python3-pkg-resources \ git \ cmake \ sudo \ @@ -27,6 +32,9 @@ RUN npm install eslint@8.6.0 -g COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh +COPY host-x86_64/mingw-check/reuse-requirements.txt /tmp/ +RUN pip3 install --no-deps --require-hashes -r /tmp/reuse-requirements.txt + COPY host-x86_64/mingw-check/validate-toolstate.sh /scripts/ COPY host-x86_64/mingw-check/validate-error-codes.sh /scripts/ @@ -40,6 +48,7 @@ ENV SCRIPT python3 ../x.py --stage 2 test src/tools/expand-yaml-anchors && \ python3 ../x.py doc --stage 0 library/test && \ /scripts/validate-toolstate.sh && \ /scripts/validate-error-codes.sh && \ + reuse lint && \ # Runs checks to ensure that there are no ES5 issues in our JS code. es-check es6 ../src/librustdoc/html/static/js/*.js && \ eslint -c ../src/librustdoc/html/static/.eslintrc.js ../src/librustdoc/html/static/js/*.js diff --git a/src/ci/docker/host-x86_64/mingw-check/reuse-requirements.in b/src/ci/docker/host-x86_64/mingw-check/reuse-requirements.in new file mode 100644 index 0000000000000..4964f40aa39ad --- /dev/null +++ b/src/ci/docker/host-x86_64/mingw-check/reuse-requirements.in @@ -0,0 +1,22 @@ +# This is the template for reuse-requirements.txt. +# +# The pip-tools project is used to generate the file again. To install it, the +# recommended way is to: +# +# - Install pipx from https://github.com/pypa/pipx +# - Run `pipx install pip-tools` +# +# Once pip-tools is installed, run this command to regenerate the .txt file: +# +# pip-compile --allow-unsafe --generate-hashes reuse-requirements.in +# + +reuse + +# Some packages dropped support for Python 3.6, which is the version used in +# this builder (due to Ubuntu 18.04). This should be removed once we bump the +# Ubuntu version of the builder. +jinja2 < 3.1 +markupsafe < 2.1 +requests < 2.28 +setuptools < 59.7 diff --git a/src/ci/docker/host-x86_64/mingw-check/reuse-requirements.txt b/src/ci/docker/host-x86_64/mingw-check/reuse-requirements.txt new file mode 100644 index 0000000000000..10a5f73879082 --- /dev/null +++ b/src/ci/docker/host-x86_64/mingw-check/reuse-requirements.txt @@ -0,0 +1,145 @@ +# +# This file is autogenerated by pip-compile with python 3.10 +# To update, run: +# +# pip-compile --allow-unsafe --generate-hashes reuse-requirements.in +# +binaryornot==0.4.4 \ + --hash=sha256:359501dfc9d40632edc9fac890e19542db1a287bbcfa58175b66658392018061 \ + --hash=sha256:b8b71173c917bddcd2c16070412e369c3ed7f0528926f70cac18a6c97fd563e4 + # via reuse +boolean-py==3.8 \ + --hash=sha256:cc24e20f985d60cd4a3a5a1c0956dd12611159d32a75081dabd0c9ab981acaa4 \ + --hash=sha256:d75da0fd0354425fa64f6bbc6cec6ae1485d0eec3447b73187ff8cbf9b572e26 + # via + # license-expression + # reuse +certifi==2022.6.15 \ + --hash=sha256:84c85a9078b11105f04f3036a9482ae10e4621616db313fe045dd24743a0820d \ + --hash=sha256:fe86415d55e84719d75f8b69414f6438ac3547d2078ab91b67e779ef69378412 + # via requests +chardet==5.0.0 \ + --hash=sha256:0368df2bfd78b5fc20572bb4e9bb7fb53e2c094f60ae9993339e8671d0afb8aa \ + --hash=sha256:d3e64f022d254183001eccc5db4040520c0f23b1a3f33d6413e099eb7f126557 + # via + # binaryornot + # python-debian +charset-normalizer==2.0.12 \ + --hash=sha256:2857e29ff0d34db842cd7ca3230549d1a697f96ee6d3fb071cfa6c7393832597 \ + --hash=sha256:6881edbebdb17b39b4eaaa821b438bf6eddffb4468cf344f09f89def34a8b1df + # via requests +idna==3.3 \ + --hash=sha256:84d9dd047ffa80596e0f246e2eab0b391788b0503584e8945f2368256d2735ff \ + --hash=sha256:9d643ff0a55b762d5cdb124b8eaa99c66322e2157b69160bc32796e824360e6d + # via requests +jinja2==3.0.3 \ + --hash=sha256:077ce6014f7b40d03b47d1f1ca4b0fc8328a692bd284016f806ed0eaca390ad8 \ + --hash=sha256:611bb273cd68f3b993fabdc4064fc858c5b47a973cb5aa7999ec1ba405c87cd7 + # via + # -r reuse-requirements.in + # reuse +license-expression==21.6.14 \ + --hash=sha256:324246eed8e138b4139fefdc0e9dc4161d5075e3929e56983966d37298dca30e \ + --hash=sha256:9de87a427c9a449eee7913472fb9ed03b63036295547369fdbf95f76a8b924b2 + # via + # -r reuse-requirements.in + # reuse +markupsafe==2.0.1 \ + --hash=sha256:01a9b8ea66f1658938f65b93a85ebe8bc016e6769611be228d797c9d998dd298 \ + --hash=sha256:023cb26ec21ece8dc3907c0e8320058b2e0cb3c55cf9564da612bc325bed5e64 \ + --hash=sha256:0446679737af14f45767963a1a9ef7620189912317d095f2d9ffa183a4d25d2b \ + --hash=sha256:04635854b943835a6ea959e948d19dcd311762c5c0c6e1f0e16ee57022669194 \ + --hash=sha256:0717a7390a68be14b8c793ba258e075c6f4ca819f15edfc2a3a027c823718567 \ + --hash=sha256:0955295dd5eec6cb6cc2fe1698f4c6d84af2e92de33fbcac4111913cd100a6ff \ + --hash=sha256:0d4b31cc67ab36e3392bbf3862cfbadac3db12bdd8b02a2731f509ed5b829724 \ + --hash=sha256:10f82115e21dc0dfec9ab5c0223652f7197feb168c940f3ef61563fc2d6beb74 \ + --hash=sha256:168cd0a3642de83558a5153c8bd34f175a9a6e7f6dc6384b9655d2697312a646 \ + --hash=sha256:1d609f577dc6e1aa17d746f8bd3c31aa4d258f4070d61b2aa5c4166c1539de35 \ + --hash=sha256:1f2ade76b9903f39aa442b4aadd2177decb66525062db244b35d71d0ee8599b6 \ + --hash=sha256:20dca64a3ef2d6e4d5d615a3fd418ad3bde77a47ec8a23d984a12b5b4c74491a \ + --hash=sha256:2a7d351cbd8cfeb19ca00de495e224dea7e7d919659c2841bbb7f420ad03e2d6 \ + --hash=sha256:2d7d807855b419fc2ed3e631034685db6079889a1f01d5d9dac950f764da3dad \ + --hash=sha256:2ef54abee730b502252bcdf31b10dacb0a416229b72c18b19e24a4509f273d26 \ + --hash=sha256:36bc903cbb393720fad60fc28c10de6acf10dc6cc883f3e24ee4012371399a38 \ + --hash=sha256:37205cac2a79194e3750b0af2a5720d95f786a55ce7df90c3af697bfa100eaac \ + --hash=sha256:3c112550557578c26af18a1ccc9e090bfe03832ae994343cfdacd287db6a6ae7 \ + --hash=sha256:3dd007d54ee88b46be476e293f48c85048603f5f516008bee124ddd891398ed6 \ + --hash=sha256:4296f2b1ce8c86a6aea78613c34bb1a672ea0e3de9c6ba08a960efe0b0a09047 \ + --hash=sha256:47ab1e7b91c098ab893b828deafa1203de86d0bc6ab587b160f78fe6c4011f75 \ + --hash=sha256:49e3ceeabbfb9d66c3aef5af3a60cc43b85c33df25ce03d0031a608b0a8b2e3f \ + --hash=sha256:4dc8f9fb58f7364b63fd9f85013b780ef83c11857ae79f2feda41e270468dd9b \ + --hash=sha256:4efca8f86c54b22348a5467704e3fec767b2db12fc39c6d963168ab1d3fc9135 \ + --hash=sha256:53edb4da6925ad13c07b6d26c2a852bd81e364f95301c66e930ab2aef5b5ddd8 \ + --hash=sha256:5855f8438a7d1d458206a2466bf82b0f104a3724bf96a1c781ab731e4201731a \ + --hash=sha256:594c67807fb16238b30c44bdf74f36c02cdf22d1c8cda91ef8a0ed8dabf5620a \ + --hash=sha256:5b6d930f030f8ed98e3e6c98ffa0652bdb82601e7a016ec2ab5d7ff23baa78d1 \ + --hash=sha256:5bb28c636d87e840583ee3adeb78172efc47c8b26127267f54a9c0ec251d41a9 \ + --hash=sha256:60bf42e36abfaf9aff1f50f52644b336d4f0a3fd6d8a60ca0d054ac9f713a864 \ + --hash=sha256:611d1ad9a4288cf3e3c16014564df047fe08410e628f89805e475368bd304914 \ + --hash=sha256:6300b8454aa6930a24b9618fbb54b5a68135092bc666f7b06901f897fa5c2fee \ + --hash=sha256:63f3268ba69ace99cab4e3e3b5840b03340efed0948ab8f78d2fd87ee5442a4f \ + --hash=sha256:6557b31b5e2c9ddf0de32a691f2312a32f77cd7681d8af66c2692efdbef84c18 \ + --hash=sha256:693ce3f9e70a6cf7d2fb9e6c9d8b204b6b39897a2c4a1aa65728d5ac97dcc1d8 \ + --hash=sha256:6a7fae0dd14cf60ad5ff42baa2e95727c3d81ded453457771d02b7d2b3f9c0c2 \ + --hash=sha256:6c4ca60fa24e85fe25b912b01e62cb969d69a23a5d5867682dd3e80b5b02581d \ + --hash=sha256:6fcf051089389abe060c9cd7caa212c707e58153afa2c649f00346ce6d260f1b \ + --hash=sha256:7d91275b0245b1da4d4cfa07e0faedd5b0812efc15b702576d103293e252af1b \ + --hash=sha256:89c687013cb1cd489a0f0ac24febe8c7a666e6e221b783e53ac50ebf68e45d86 \ + --hash=sha256:8d206346619592c6200148b01a2142798c989edcb9c896f9ac9722a99d4e77e6 \ + --hash=sha256:905fec760bd2fa1388bb5b489ee8ee5f7291d692638ea5f67982d968366bef9f \ + --hash=sha256:97383d78eb34da7e1fa37dd273c20ad4320929af65d156e35a5e2d89566d9dfb \ + --hash=sha256:984d76483eb32f1bcb536dc27e4ad56bba4baa70be32fa87152832cdd9db0833 \ + --hash=sha256:99df47edb6bda1249d3e80fdabb1dab8c08ef3975f69aed437cb69d0a5de1e28 \ + --hash=sha256:9f02365d4e99430a12647f09b6cc8bab61a6564363f313126f775eb4f6ef798e \ + --hash=sha256:a30e67a65b53ea0a5e62fe23682cfe22712e01f453b95233b25502f7c61cb415 \ + --hash=sha256:ab3ef638ace319fa26553db0624c4699e31a28bb2a835c5faca8f8acf6a5a902 \ + --hash=sha256:aca6377c0cb8a8253e493c6b451565ac77e98c2951c45f913e0b52facdcff83f \ + --hash=sha256:add36cb2dbb8b736611303cd3bfcee00afd96471b09cda130da3581cbdc56a6d \ + --hash=sha256:b2f4bf27480f5e5e8ce285a8c8fd176c0b03e93dcc6646477d4630e83440c6a9 \ + --hash=sha256:b7f2d075102dc8c794cbde1947378051c4e5180d52d276987b8d28a3bd58c17d \ + --hash=sha256:baa1a4e8f868845af802979fcdbf0bb11f94f1cb7ced4c4b8a351bb60d108145 \ + --hash=sha256:be98f628055368795d818ebf93da628541e10b75b41c559fdf36d104c5787066 \ + --hash=sha256:bf5d821ffabf0ef3533c39c518f3357b171a1651c1ff6827325e4489b0e46c3c \ + --hash=sha256:c47adbc92fc1bb2b3274c4b3a43ae0e4573d9fbff4f54cd484555edbf030baf1 \ + --hash=sha256:cdfba22ea2f0029c9261a4bd07e830a8da012291fbe44dc794e488b6c9bb353a \ + --hash=sha256:d6c7ebd4e944c85e2c3421e612a7057a2f48d478d79e61800d81468a8d842207 \ + --hash=sha256:d7f9850398e85aba693bb640262d3611788b1f29a79f0c93c565694658f4071f \ + --hash=sha256:d8446c54dc28c01e5a2dbac5a25f071f6653e6e40f3a8818e8b45d790fe6ef53 \ + --hash=sha256:deb993cacb280823246a026e3b2d81c493c53de6acfd5e6bfe31ab3402bb37dd \ + --hash=sha256:e0f138900af21926a02425cf736db95be9f4af72ba1bb21453432a07f6082134 \ + --hash=sha256:e9936f0b261d4df76ad22f8fee3ae83b60d7c3e871292cd42f40b81b70afae85 \ + --hash=sha256:f0567c4dc99f264f49fe27da5f735f414c4e7e7dd850cfd8e69f0862d7c74ea9 \ + --hash=sha256:f5653a225f31e113b152e56f154ccbe59eeb1c7487b39b9d9f9cdb58e6c79dc5 \ + --hash=sha256:f826e31d18b516f653fe296d967d700fddad5901ae07c622bb3705955e1faa94 \ + --hash=sha256:f8ba0e8349a38d3001fae7eadded3f6606f0da5d748ee53cc1dab1d6527b9509 \ + --hash=sha256:f9081981fe268bd86831e5c75f7de206ef275defcb82bc70740ae6dc507aee51 \ + --hash=sha256:fa130dd50c57d53368c9d59395cb5526eda596d3ffe36666cd81a44d56e48872 + # via + # -r reuse-requirements.in + # jinja2 +python-debian==0.1.44 \ + --hash=sha256:11bd6f01c46da57982bdd66dd595e2d240feb32a85de3fd37c452102fd0337ab \ + --hash=sha256:65592fe3b64f6c6c93d94e2d2599db5e0c22831d3bcff07cb7b96d3840b1333e + # via reuse +requests==2.26.0 \ + --hash=sha256:6c1246513ecd5ecd4528a0906f910e8f0f9c6b8ec72030dc9fd154dc1a6efd24 \ + --hash=sha256:b8aa58f8cf793ffd8782d3d8cb19e66ef36f7aba4353eec859e74678b01b07a7 + # via + # -r reuse-requirements.in + # reuse +reuse==1.0.0 \ + --hash=sha256:db3022be2d87f69c8f508b928023de3026f454ce17d01e22f770f7147ac1e8d4 \ + --hash=sha256:e2605e796311c424465d741ea2a1e1ad03bbb90b921d74750119c331ca5af46e + # via -r reuse-requirements.in +urllib3==1.26.10 \ + --hash=sha256:8298d6d56d39be0e3bc13c1c97d133f9b45d797169a0e11cdd0e0489d786f7ec \ + --hash=sha256:879ba4d1e89654d9769ce13121e0f94310ea32e8d2f8cf587b77c08bbcdb30d6 + # via requests + +# The following packages are considered to be unsafe in a requirements file: +setuptools==59.6.0 \ + --hash=sha256:22c7348c6d2976a52632c67f7ab0cdf40147db7789f9aed18734643fe9cf3373 \ + --hash=sha256:4ce92f1e1f8f01233ee9952c04f6b81d1e02939d6e1b488428154974a4d0783e + # via + # -r reuse-requirements.in + # reuse diff --git a/src/test/codegen/try_question_mark_nop.rs b/src/test/codegen/try_question_mark_nop.rs new file mode 100644 index 0000000000000..d239387768e6b --- /dev/null +++ b/src/test/codegen/try_question_mark_nop.rs @@ -0,0 +1,54 @@ +// min-llvm-version: 15.0 +// compile-flags: -O -Z merge-functions=disabled --edition=2021 +// only-x86_64 + +#![crate_type = "lib"] +#![feature(try_blocks)] + +// These are now NOPs in LLVM 15, presumably thanks to nikic's change mentioned in +// . +// Unfortunately, as of 2022-08-17 they're not yet nops for `u64`s nor `Option`. + +use std::ops::ControlFlow::{self, Continue, Break}; + +// CHECK-LABEL: @result_nop_match_32 +#[no_mangle] +pub fn result_nop_match_32(x: Result) -> Result { + // CHECK: start + // CHECK-NEXT: ret i64 %0 + match x { + Ok(x) => Ok(x), + Err(x) => Err(x), + } +} + +// CHECK-LABEL: @result_nop_traits_32 +#[no_mangle] +pub fn result_nop_traits_32(x: Result) -> Result { + // CHECK: start + // CHECK-NEXT: ret i64 %0 + try { + x? + } +} + +// CHECK-LABEL: @control_flow_nop_match_32 +#[no_mangle] +pub fn control_flow_nop_match_32(x: ControlFlow) -> ControlFlow { + // CHECK: start + // CHECK-NEXT: ret i64 %0 + match x { + Continue(x) => Continue(x), + Break(x) => Break(x), + } +} + +// CHECK-LABEL: @control_flow_nop_traits_32 +#[no_mangle] +pub fn control_flow_nop_traits_32(x: ControlFlow) -> ControlFlow { + // CHECK: start + // CHECK-NEXT: ret i64 %0 + try { + x? + } +} diff --git a/src/test/ui/associated-types/higher-ranked-projection.badbase.stderr b/src/test/ui/associated-types/higher-ranked-projection.badbase.stderr deleted file mode 100644 index 8b2b87223a58a..0000000000000 --- a/src/test/ui/associated-types/higher-ranked-projection.badbase.stderr +++ /dev/null @@ -1,17 +0,0 @@ -error[E0308]: mismatched types - --> $DIR/higher-ranked-projection.rs:25:5 - | -LL | foo(()); - | ^^^^^^^ one type is more general than the other - | - = note: expected reference `&'a ()` - found reference `&()` -note: the lifetime requirement is introduced here - --> $DIR/higher-ranked-projection.rs:16:33 - | -LL | where for<'a> &'a T: Mirror - | ^^^^^^^ - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/associated-types/higher-ranked-projection.badnll.stderr b/src/test/ui/associated-types/higher-ranked-projection.badnll.stderr deleted file mode 100644 index 217392aa35b15..0000000000000 --- a/src/test/ui/associated-types/higher-ranked-projection.badnll.stderr +++ /dev/null @@ -1,2 +0,0 @@ -error: unknown debugging option: `borrowck` - diff --git a/src/test/ui/implied-bounds/issue-100690.rs b/src/test/ui/implied-bounds/issue-100690.rs new file mode 100644 index 0000000000000..5599cd410baad --- /dev/null +++ b/src/test/ui/implied-bounds/issue-100690.rs @@ -0,0 +1,45 @@ +// This code (probably) _should_ compile, but it currently does not because we +// are not smart enough about implied bounds. + +use std::io; + +fn real_dispatch(f: F) -> Result<(), io::Error> +//~^ NOTE required by a bound in this +where + F: FnOnce(&mut UIView) -> Result<(), io::Error> + Send + 'static, + //~^ NOTE required by this bound in `real_dispatch` + //~| NOTE required by a bound in `real_dispatch` +{ + todo!() +} + +#[derive(Debug)] +struct UIView<'a, T: 'a> { + _phantom: std::marker::PhantomData<&'a mut T>, +} + +trait Handle<'a, T: 'a, V, R> { + fn dispatch(&self, f: F) -> Result<(), io::Error> + where + F: FnOnce(&mut V) -> R + Send + 'static; +} + +#[derive(Debug, Clone)] +struct TUIHandle { + _phantom: std::marker::PhantomData, +} + +impl<'a, T: 'a> Handle<'a, T, UIView<'a, T>, Result<(), io::Error>> for TUIHandle { + fn dispatch(&self, f: F) -> Result<(), io::Error> + where + F: FnOnce(&mut UIView<'a, T>) -> Result<(), io::Error> + Send + 'static, + { + real_dispatch(f) + //~^ ERROR expected a `FnOnce<(&mut UIView<'_, T>,)>` closure, found `F` + //~| NOTE expected an `FnOnce<(&mut UIView<'_, T>,)>` closure, found `F` + //~| NOTE expected a closure with arguments + //~| NOTE required by a bound introduced by this call + } +} + +fn main() {} diff --git a/src/test/ui/implied-bounds/issue-100690.stderr b/src/test/ui/implied-bounds/issue-100690.stderr new file mode 100644 index 0000000000000..3f6af70d8ed93 --- /dev/null +++ b/src/test/ui/implied-bounds/issue-100690.stderr @@ -0,0 +1,22 @@ +error[E0277]: expected a `FnOnce<(&mut UIView<'_, T>,)>` closure, found `F` + --> $DIR/issue-100690.rs:37:23 + | +LL | real_dispatch(f) + | ------------- ^ expected an `FnOnce<(&mut UIView<'_, T>,)>` closure, found `F` + | | + | required by a bound introduced by this call + | + = note: expected a closure with arguments `(&mut UIView<'a, T>,)` + found a closure with arguments `(&mut UIView<'_, T>,)` +note: required by a bound in `real_dispatch` + --> $DIR/issue-100690.rs:9:8 + | +LL | fn real_dispatch(f: F) -> Result<(), io::Error> + | ------------- required by a bound in this +... +LL | F: FnOnce(&mut UIView) -> Result<(), io::Error> + Send + 'static, + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `real_dispatch` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/src/test/ui/lub-glb/old-lub-glb-hr-noteq1.nllleak.stderr b/src/test/ui/lub-glb/old-lub-glb-hr-noteq1.nllleak.stderr deleted file mode 100644 index 217392aa35b15..0000000000000 --- a/src/test/ui/lub-glb/old-lub-glb-hr-noteq1.nllleak.stderr +++ /dev/null @@ -1,2 +0,0 @@ -error: unknown debugging option: `borrowck` - diff --git a/src/test/ui/lub-glb/old-lub-glb-hr-noteq1.nllnoleak.stderr b/src/test/ui/lub-glb/old-lub-glb-hr-noteq1.nllnoleak.stderr deleted file mode 100644 index 217392aa35b15..0000000000000 --- a/src/test/ui/lub-glb/old-lub-glb-hr-noteq1.nllnoleak.stderr +++ /dev/null @@ -1,2 +0,0 @@ -error: unknown debugging option: `borrowck` - diff --git a/triagebot.toml b/triagebot.toml index 4d3f748195b80..8a90bc0e3c143 100644 --- a/triagebot.toml +++ b/triagebot.toml @@ -362,12 +362,12 @@ cc = ["@oli-obk", "@RalfJung", "@JakobDegen", "@davidtwco", "@celinval", "@vakar [mentions."compiler/rustc_error_messages"] message = "`rustc_error_messages` was changed" -cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@estebank"] +cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@estebank", "@TaKO8Ki"] [mentions."compiler/rustc_errors/src/translation.rs"] message = "`rustc_errors::translation` was changed" -cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@estebank"] +cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@estebank", "@TaKO8Ki"] [mentions."compiler/rustc_macros/src/diagnostics"] message = "`rustc_macros::diagnostics` was changed" -cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@estebank"] +cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@estebank", "@TaKO8Ki"]