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Only store a LocalDefId in some HIR nodes
Some HIR nodes are guaranteed to be HIR owners: Item, TraitItem, ImplItem, ForeignItem and MacroDef.
As a consequence, we do not need to store the `HirId`'s `local_id`, and we can directly store a `LocalDefId`.
This allows to avoid a bit of the dance with `tcx.hir().local_def_id` and `tcx.hir().local_def_id_to_hir_id` mappings.
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Rollup of 6 pull requests
Successful merges:
- #82145 (Fix ES5 errors (IE11))
- #82160 (Fix typo in rustc_infer::infer::UndoLog)
- #82161 (Add long explanation for E0545)
- #82163 (avoid full-slicing slices)
- #82175 (validation: fix invalid-fn-ptr error message)
- #82184 ([Minor] Update discriminant_value docs)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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validation: fix invalid-fn-ptr error message
https://github.com/rust-lang/rust/pull/82061 changed the code here to print an `ImmTy` instead of a `ScalarMaybeUninit`; that was an accident. So go back to printing a `ScalarMaybeUninit`.
r? ```@oli-obk```
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avoid full-slicing slices
If we already have a slice, there is no need to get another full-range slice from that, just use the original.
clippy::redundant_slicing
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r=GuillaumeGomez
Add long explanation for E0545
Helps with #61137
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Fix ES5 errors (IE11)
rustdoc is supposed to run on IE11 but someone reported me that it wasn't. I just confirmed it by using `es-check` with the `es5` option like this:
```
$ es-check es5 src/librustdoc/html/static/*.js
```
The PR fixes those issues and add CI checks to prevent regressions.
`@Mark-Simulacrum:` I added checks in the CI, but not sure if it's the correct way to do it. Any help on that side would be very appreciated!
r? `@Nemo157`
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Ensures `make` tests run under /bin/dash (if available), like CI, and fixes a Makefile
Note: This cherrypicks #81688 (`@pnkfelix)`
Updates `tools.mk` to explicitly require `SHELL := /bin/dash`, since CI uses `dash` but other environments (including developer local machines) may default to `bash`.
Replaces bash-specific shell command in one Makefile with a dash-compatible alternative, and re-enables the affected Makefile test.
Removes apparently redundant definition of `UNAME`.
Also see: [zulip discussion thread](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/how.20to.20run.2Fbless.20src.2Ftest.2Frun-make-fulldeps.2Fcoverage.20.3F)
r? `@pnkfelix`
FYI: `@wesleywiser` `@tmandry`
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If we already have a slice, there is no need to get another full-range slice from that, just use the original.
clippy::redundant_slicing
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Items are guaranteed to be HIR owner.
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:arrow_up: rust-analyzer
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32-bit ARM: Emit `lr` instead of `r14` when specified as an `asm!` output register.
On 32-bit ARM platforms, the register `r14` has the alias `lr`. When used as an output register in `asm!`, rustc canonicalizes the name to `r14`. LLVM only knows the register by the name `lr`, and rejects it. This changes rustc's LLVM code generation to output `lr` instead.
closes #82052
r? ``@nagisa``
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Update link for extern prelude.
There was some reorganization in the reference as part of https://github.com/rust-lang/reference/pull/937.
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Remove unnecessary `Option` in `default_doc`
Previously, there were two different ways to encode the same info: `None` or
`Some(&[])`. Now there is only one way, `&[]`.
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Fix a typo
This pull request fixes a typo.
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const_generics: Fix incorrect ty::ParamEnv::empty() usage
Fixes #80561
Not sure if I should keep the `debug!(..)`s or not but its the second time I've needed them so they sure seem useful lol
cc ``@lcnr``
r? ``@oli-obk``
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CTFE validation: catch ReadPointerAsBytes and better error
r? ``@oli-obk``
Fixes https://github.com/rust-lang/rust/issues/79690
Cc https://github.com/rust-lang/miri/issues/1706
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const_generics: Dont evaluate array length const when handling errors
Fixes #79518
Fixes #78246
cc ````@lcnr````
This was ICE'ing because we dont pass in the correct ``ParamEnv`` which meant that there was no ``Self: Foo`` predicate to make ``Self::Assoc`` well formed which caused an ICE when trying to normalize ``Self::Assoc`` in the mir interpreter
r? ````@varkor````
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vandenheuvel:match_exhaustive_diagnostics_regression_test, r=Mark-Simulacrum
Add match pattern diagnostics regression test
Closes #72377 by adding a regression test.
This test case fails on stable but now works on beta and nightly. It *should* have worked already for years, the crucial point whether it is mentioned that some uncovered patterns are not explicitly mentioned.
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Suggest to create a new `const` item if the `fn` in the array is a `const fn`
Fixes #73734. If the `fn` in the array repeat expression is a `const fn`, suggest creating a new `const` item. On nightly, suggest creating an inline `const` block. This PR also removes the `suggest_const_in_array_repeat_expressions` as it is no longer necessary.
Example:
```rust
fn main() {
// Should not compile but hint to create a new const item (stable) or an inline const block (nightly)
let strings: [String; 5] = [String::new(); 5];
println!("{:?}", strings);
}
```
Gives this error:
```
error[E0277]: the trait bound `std::string::String: std::marker::Copy` is not satisfied
--> $DIR/const-fn-in-vec.rs:3:32
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2 | let strings: [String; 5] = [String::new(); 5];
| ^^^^^^^^^^^^^^^^^^ the trait `std::marker::Copy` is not implemented for `String`
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= note: the `Copy` trait is required because the repeated element will be copied
```
With this change, this is the error message:
```
error[E0277]: the trait bound `String: Copy` is not satisfied
--> $DIR/const-fn-in-vec.rs:3:32
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LL | let strings: [String; 5] = [String::new(); 5];
| ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `String`
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= help: moving the function call to a new `const` item will resolve the error
```
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register.
On 32-bit ARM platforms, the register `r14` has the alias `lr`. When used as an output register in `asm!`, rustc canonicalizes the name to `r14`. LLVM only knows the register by the name `lr`, and rejects it. This changes rustc's LLVM code generation to output `lr` instead.
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Previously, there two different ways to encode the same info: `None` or
`Some(&[])`. Now there is only one way, `&[]`.
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fix ice (#82032)
Fixes https://github.com/rust-lang/rust/issues/82032
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Add a regression test for #32498
[This](https://github.com/rust-lang/rust/issues/32498#issuecomment-613626968) test mentioned at issue #32498 now passes. This PR adds this regression test.
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Fixing bad suggestion for `_` in `const` type when a function #81885
Closes #81885
```
error[E0121]: the type placeholder `_` is not allowed within types on item signatures
--> $DIR/typeck_type_placeholder_item_help.rs:13:22
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LL | const TEST4: fn() -> _ = 42;
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| not allowed in type signatures
| help: use type parameters instead: `T`
```
Do not show the suggestion `help: use type parameters instead: T` when `fn`
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Implement the precise analysis pass for lint `disjoint_capture_drop_reorder`
The precision pass for the lint prevents the lint from triggering for a variable (that was previously entirely captured by the closure) if all paths that need Drop starting at root variable have been captured by the closure.
r? `@nikomatsakis`
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[rustdoc-json] Make `header` a vec of modifiers, and FunctionPointer consistent
Bumps version number and adds tests, this is a breaking change. I can split this into two (`is_unsafe` -> `header` and `header: Vec<Modifiers>`) if desired.
Rationale: Modifiers are individual notes on a function, it makes more sense for them to be a list of an independent enum over a String which is inconsistently exposing the HIR representation (prefix_str vs custom literals).
Function pointers currently only support `unsafe`, but there has been talk on and off about allowing them to also support `const`, and this makes handling their modifiers consistent with handling those of a function, allowing better shared code.
`@rustbot` modify labels: +A-rustdoc-json +T-rustdoc
CC: `@HeroicKatora`
r? `@jyn514`
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Updated smallvec version due to RUSTSEC-2021-0003
Hi.
Updated Cargo.toml's for smallvec due to RUSTSEC-2021-0003 and Cargo.toml in separate commit.
Affected function `SmallVec::insert_many` looks like don't was used directly in rust, but can be somewhere in deps.
There should be some mechanism to not to do this kind of things manually, like dependabot. Actually, dependabot supports rust and can check security articles (at least that noted in description).
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Visit more targets when validating attributes
This begins to address #80048, allowing for additional validation of attributes.
There are more refactorings that can be done, though I think they should be tackled in additional PRs:
* ICE when a builtin attribute is encountered that is not checked
* Move some of the attr checking done `ast_validation` into `rustc_passes`
* note that this requires a bit of additional refactoring, especially of extern items which currently parse attributes (and thus are a part of the AST) but do not possess attributes in their HIR representation.
* Rename `Target` to `AttributeTarget`
* Refactor attribute validation completely to go through `Visitor::visit_attribute`.
* This would require at a minimum passing `Target` into this method which might be too big of a refactoring to be worth it.
* It's also likely not possible to do all the validation this way as some validation requires knowing what other attributes a target has.
r? `@davidtwco`
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directly expose copy and copy_nonoverlapping intrinsics
This effectively un-does https://github.com/rust-lang/rust/pull/57997. That should help with `ptr::read` codegen in debug builds (and any other of these low-level functions that bottoms out at `copy`/`copy_nonoverlapping`), where the wrapper function will not get inlined. See the discussion in https://github.com/rust-lang/rust/pull/80290 and https://github.com/rust-lang/rust/issues/81163.
Cc `@bjorn3` `@therealprof`
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rest in peace match bool <3
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Don't release Miri if its tests only failed on Windows
Extends #66053 to Windows, so the released Miri won't be broken if its tests only fail on Windows.
Relevant Zulip thread: https://rust-lang.zulipchat.com/#narrow/stream/269128-miri/topic/Miri.20is.20still.20available.20in.20rustup.20today.3F
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