Auto merge of #105622 - matthiaskrgr:rollup-a6i81q7, r=matthiaskrgr
Rollup of 8 pull requests Successful merges: - #104405 (1.66.0 release notes) - #105561 (Normalize receiver substs and erase the regions) - #105593 (Fix typo in comment: length_limit) - #105597 (Correct typos in `core::sync::Exclusive::get_{pin_mut, mut}`) - #105614 (delete mentions of type ascription from lint descriptions) - #105615 (Fixup method doc that mentions removed param) - #105616 (Add a "the" to proc_macro documentation) - #105619 (rustdoc: remove no-op CSS `.source pre { overflow: auto }`) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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91
RELEASES.md
91
RELEASES.md
@ -1,3 +1,94 @@
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Version 1.66.0 (2022-12-15)
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==========================
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Language
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--------
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- [Permit specifying explicit discriminants on all `repr(Int)` enums](https://github.com/rust-lang/rust/pull/95710/)
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```rust
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#[repr(u8)]
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enum Foo {
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A(u8) = 0,
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B(i8) = 1,
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C(bool) = 42,
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}
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```
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- [Allow transmutes between the same type differing only in lifetimes](https://github.com/rust-lang/rust/pull/101520/)
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- [Change constant evaluation errors from a deny-by-default lint to a hard error](https://github.com/rust-lang/rust/pull/102091/)
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- [Trigger `must_use` on `impl Trait` for supertraits](https://github.com/rust-lang/rust/pull/102287/)
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This makes `impl ExactSizeIterator` respect the existing `#[must_use]` annotation on `Iterator`.
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- [Allow `..X` and `..=X` in patterns](https://github.com/rust-lang/rust/pull/102275/)
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- [Uplift `clippy::for_loops_over_fallibles` lint into rustc](https://github.com/rust-lang/rust/pull/99696/)
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- [Stabilize `sym` operands in inline assembly](https://github.com/rust-lang/rust/pull/103168/)
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- [Update to Unicode 15](https://github.com/rust-lang/rust/pull/101912/)
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- [Opaque types no longer imply lifetime bounds](https://github.com/rust-lang/rust/pull/95474/)
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This is a soundness fix which may break code that was erroneously relying on this behavior.
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Compiler
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--------
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- [Add armv5te-none-eabi and thumbv5te-none-eabi tier 3 targets](https://github.com/rust-lang/rust/pull/101329/)
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- Refer to Rust's [platform support page][platform-support-doc] for more
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information on Rust's tiered platform support.
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- [Add support for linking against macOS universal libraries](https://github.com/rust-lang/rust/pull/98736)
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Libraries
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---------
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- [Fix `#[derive(Default)]` on a generic `#[default]` enum adding unnecessary `Default` bounds](https://github.com/rust-lang/rust/pull/101040/)
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- [Update to Unicode 15](https://github.com/rust-lang/rust/pull/101821/)
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Stabilized APIs
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---------------
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- [`proc_macro::Span::source_text`](https://doc.rust-lang.org/stable/proc_macro/struct.Span.html#method.source_text)
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- [`uX::{checked_add_signed, overflowing_add_signed, saturating_add_signed, wrapping_add_signed}`](https://doc.rust-lang.org/stable/std/primitive.u8.html#method.checked_add_signed)
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- [`iX::{checked_add_unsigned, overflowing_add_unsigned, saturating_add_unsigned, wrapping_add_unsigned}`](https://doc.rust-lang.org/stable/std/primitive.i8.html#method.checked_add_unsigned)
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- [`iX::{checked_sub_unsigned, overflowing_sub_unsigned, saturating_sub_unsigned, wrapping_sub_unsigned}`](https://doc.rust-lang.org/stable/std/primitive.i8.html#method.checked_sub_unsigned)
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- [`BTreeSet::{first, last, pop_first, pop_last}`](https://doc.rust-lang.org/stable/std/collections/struct.BTreeSet.html#method.first)
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- [`BTreeMap::{first_key_value, last_key_value, first_entry, last_entry, pop_first, pop_last}`](https://doc.rust-lang.org/stable/std/collections/struct.BTreeMap.html#method.first_key_value)
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- [Add `AsFd` implementations for stdio lock types on WASI.](https://github.com/rust-lang/rust/pull/101768/)
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- [`impl TryFrom<Vec<T>> for Box<[T; N]>`](https://doc.rust-lang.org/stable/std/boxed/struct.Box.html#impl-TryFrom%3CVec%3CT%2C%20Global%3E%3E-for-Box%3C%5BT%3B%20N%5D%2C%20Global%3E)
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- [`core::hint::black_box`](https://doc.rust-lang.org/stable/std/hint/fn.black_box.html)
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- [`Duration::try_from_secs_{f32,f64}`](https://doc.rust-lang.org/stable/std/time/struct.Duration.html#method.try_from_secs_f32)
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- [`Option::unzip`](https://doc.rust-lang.org/stable/std/option/enum.Option.html#method.unzip)
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- [`std::os::fd`](https://doc.rust-lang.org/stable/std/os/fd/index.html)
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Rustdoc
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-------
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- [Add Rustdoc warning for invalid HTML tags in the documentation](https://github.com/rust-lang/rust/pull/101720/)
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Cargo
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-----
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- [Added `cargo remove` to remove dependencies from Cargo.toml](https://doc.rust-lang.org/nightly/cargo/commands/cargo-remove.html)
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- [`cargo publish` now waits for the new version to be downloadable before exiting](https://github.com/rust-lang/cargo/pull/11062)
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See [detailed release notes](https://github.com/rust-lang/cargo/blob/master/CHANGELOG.md#cargo-166-2022-12-15) for more.
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Compatibility Notes
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-------------------
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- [Only apply `ProceduralMasquerade` hack to older versions of `rental`](https://github.com/rust-lang/rust/pull/94063/)
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- [Don't export `__heap_base` and `__data_end` on wasm32-wasi.](https://github.com/rust-lang/rust/pull/102385/)
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- [Don't export `__wasm_init_memory` on WebAssembly.](https://github.com/rust-lang/rust/pull/102426/)
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- [Only export `__tls_*` on wasm32-unknown-unknown.](https://github.com/rust-lang/rust/pull/102440/)
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- [Don't link to `libresolv` in libstd on Darwin](https://github.com/rust-lang/rust/pull/102766/)
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- [Update libstd's libc to 0.2.135 (to make `libstd` no longer pull in `libiconv.dylib` on Darwin)](https://github.com/rust-lang/rust/pull/103277/)
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- [Opaque types no longer imply lifetime bounds](https://github.com/rust-lang/rust/pull/95474/)
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This is a soundness fix which may break code that was erroneously relying on this behavior.
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- [Make `order_dependent_trait_objects` show up in future-breakage reports](https://github.com/rust-lang/rust/pull/102635/)
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- [Change std::process::Command spawning to default to inheriting the parent's signal mask](https://github.com/rust-lang/rust/pull/101077/)
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Internal Changes
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----------------
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These changes do not affect any public interfaces of Rust, but they represent
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significant improvements to the performance or internals of rustc and related
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tools.
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- [Enable BOLT for LLVM compilation](https://github.com/rust-lang/rust/pull/94381/)
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- [Enable LTO for rustc_driver.so](https://github.com/rust-lang/rust/pull/101403/)
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Version 1.65.0 (2022-11-03)
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==========================
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@ -911,8 +911,7 @@
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declare_lint! {
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/// The `trivial_casts` lint detects trivial casts which could be replaced
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/// with coercion, which may require [type ascription] or a temporary
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/// variable.
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/// with coercion, which may require a temporary variable.
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///
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/// ### Example
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///
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/// with FFI interfaces or complex type aliases, where it triggers
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/// incorrectly, or in situations where it will be more difficult to
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/// clearly express the intent. It may be possible that this will become a
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/// warning in the future, possibly with [type ascription] providing a
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/// convenient way to work around the current issues. See [RFC 401] for
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/// historical context.
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/// warning in the future, possibly with an explicit syntax for coercions
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/// providing a convenient way to work around the current issues.
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/// See [RFC 401 (coercions)][rfc-401], [RFC 803 (type ascription)][rfc-803] and
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/// [RFC 3307 (remove type ascription)][rfc-3307] for historical context.
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///
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/// [type ascription]: https://github.com/rust-lang/rust/issues/23416
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/// [RFC 401]: https://github.com/rust-lang/rfcs/blob/master/text/0401-coercions.md
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/// [rfc-401]: https://github.com/rust-lang/rfcs/blob/master/text/0401-coercions.md
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/// [rfc-803]: https://github.com/rust-lang/rfcs/blob/master/text/0803-type-ascription.md
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/// [rfc-3307]: https://github.com/rust-lang/rfcs/blob/master/text/3307-de-rfc-type-ascription.md
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pub TRIVIAL_CASTS,
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Allow,
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"detects trivial casts which could be removed"
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@ -967,12 +968,14 @@
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/// with FFI interfaces or complex type aliases, where it triggers
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/// incorrectly, or in situations where it will be more difficult to
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/// clearly express the intent. It may be possible that this will become a
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/// warning in the future, possibly with [type ascription] providing a
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/// convenient way to work around the current issues. See [RFC 401] for
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/// historical context.
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/// warning in the future, possibly with an explicit syntax for coercions
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/// providing a convenient way to work around the current issues.
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/// See [RFC 401 (coercions)][rfc-401], [RFC 803 (type ascription)][rfc-803] and
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/// [RFC 3307 (remove type ascription)][rfc-3307] for historical context.
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///
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/// [type ascription]: https://github.com/rust-lang/rust/issues/23416
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/// [RFC 401]: https://github.com/rust-lang/rfcs/blob/master/text/0401-coercions.md
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/// [rfc-401]: https://github.com/rust-lang/rfcs/blob/master/text/0401-coercions.md
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/// [rfc-803]: https://github.com/rust-lang/rfcs/blob/master/text/0803-type-ascription.md
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/// [rfc-3307]: https://github.com/rust-lang/rfcs/blob/master/text/3307-de-rfc-type-ascription.md
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pub TRIVIAL_NUMERIC_CASTS,
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Allow,
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"detects trivial casts of numeric types which could be removed"
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@ -1010,7 +1010,7 @@ pub fn short_ty_string(self, ty: Ty<'tcx>) -> (String, Option<PathBuf>) {
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}
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let mut short;
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loop {
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// Look for the longest properly trimmed path that still fits in lenght_limit.
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// Look for the longest properly trimmed path that still fits in length_limit.
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short = with_forced_trimmed_paths!(
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FmtPrinter::new_with_limit(
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self,
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@ -6,10 +6,8 @@
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impl<'a, 'tcx> Builder<'a, 'tcx> {
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/// Builds a block of MIR statements to evaluate the THIR `expr`.
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/// If the original expression was an AST statement,
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/// (e.g., `some().code(&here());`) then `opt_stmt_span` is the
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/// span of that statement (including its semicolon, if any).
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/// The scope is used if a statement temporary must be dropped.
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///
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/// The `statement_scope` is used if a statement temporary must be dropped.
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pub(crate) fn stmt_expr(
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&mut self,
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mut block: BasicBlock,
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@ -44,7 +44,13 @@ fn inner_resolve_instance<'tcx>(
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let result = if let Some(trait_def_id) = tcx.trait_of_item(def.did) {
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debug!(" => associated item, attempting to find impl in param_env {:#?}", param_env);
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resolve_associated_item(tcx, def.did, param_env, trait_def_id, substs)
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resolve_associated_item(
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tcx,
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def.did,
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param_env,
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trait_def_id,
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tcx.normalize_erasing_regions(param_env, substs),
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)
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} else {
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let ty = tcx.type_of(def.def_id_for_type_of());
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let item_type = tcx.subst_and_normalize_erasing_regions(substs, param_env, ty);
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@ -138,7 +138,7 @@ pub const fn get_pin_mut(self: Pin<&mut Self>) -> Pin<&mut T> {
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unsafe { Pin::new_unchecked(&mut self.get_unchecked_mut().inner) }
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}
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/// Build a _mutable_ references to an `Exclusive<T>` from
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/// Build a _mutable_ reference to an `Exclusive<T>` from
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/// a _mutable_ reference to a `T`. This allows you to skip
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/// building an `Exclusive` with [`Exclusive::new`].
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#[unstable(feature = "exclusive_wrapper", issue = "98407")]
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@ -149,7 +149,7 @@ pub const fn from_mut(r: &'_ mut T) -> &'_ mut Exclusive<T> {
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unsafe { &mut *(r as *mut T as *mut Exclusive<T>) }
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}
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/// Build a _pinned mutable_ references to an `Exclusive<T>` from
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/// Build a _pinned mutable_ reference to an `Exclusive<T>` from
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/// a _pinned mutable_ reference to a `T`. This allows you to skip
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/// building an `Exclusive` with [`Exclusive::new`].
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#[unstable(feature = "exclusive_wrapper", issue = "98407")]
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@ -1493,7 +1493,7 @@ pub mod tracked_env {
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use std::ffi::OsStr;
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/// Retrieve an environment variable and add it to build dependency info.
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/// Build system executing the compiler will know that the variable was accessed during
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/// The build system executing the compiler will know that the variable was accessed during
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/// compilation, and will be able to rerun the build when the value of that variable changes.
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/// Besides the dependency tracking this function should be equivalent to `env::var` from the
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/// standard library, except that the argument must be UTF-8.
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@ -523,7 +523,6 @@ ul.block, .block li {
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}
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.source .content pre.rust {
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overflow: auto;
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padding-left: 0;
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}
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59
src/test/ui/associated-item/issue-105449.rs
Normal file
59
src/test/ui/associated-item/issue-105449.rs
Normal file
@ -0,0 +1,59 @@
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// check-pass
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// compile-flags: -C debug_assertions=yes -Zunstable-options
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#[allow(dead_code)]
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fn problematic_function<Space>()
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where
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DefaultAlloc: FinAllok<R1, Space>,
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{
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let e = Edge2dElement;
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let _ = Into::<Point>::into(e.map_reference_coords());
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}
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impl<N> Allocator<N, R0> for DefaultAlloc {
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type Buffer = MStorage;
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}
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impl<N> Allocator<N, R1> for DefaultAlloc {
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type Buffer = MStorage;
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}
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impl<N, D> From<VectorN<N, D>> for Point
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where
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DefaultAlloc: Allocator<N, D>,
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{
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fn from(_: VectorN<N, D>) -> Self {
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unimplemented!()
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}
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}
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impl<GeometryDim, NodalDim> FinAllok<GeometryDim, NodalDim> for DefaultAlloc
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where
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DefaultAlloc: Allocator<Ure, GeometryDim>,
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DefaultAlloc: Allocator<Ure, NodalDim>
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{
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}
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impl FiniteElement<R1> for Edge2dElement {
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fn map_reference_coords(&self) -> VectorN<Ure, R1> {
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unimplemented!()
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}
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}
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type VectorN<N, R> = (N, R, <DefaultAlloc as Allocator<N, R>>::Buffer);
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struct DefaultAlloc;
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struct R0;
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struct R1;
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struct MStorage;
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struct Point;
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struct Edge2dElement;
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struct Ure;
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trait Allocator<N, R> {
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type Buffer;
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}
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trait FinAllok<GeometryDim, NodalDim>:
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Allocator<Ure, GeometryDim> +
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Allocator<Ure, NodalDim> +
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{
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}
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trait FiniteElement<Rau>
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where
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DefaultAlloc: FinAllok<Rau, Rau>,
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{
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fn map_reference_coords(&self) -> VectorN<Ure, Rau>;
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}
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fn main() {}
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