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Rollup of 9 pull requests
Successful merges:
- #132983 (Edit dangling pointers )
- #135409 (Fix ICE-133117: multiple never-pattern arm doesn't have false_edge_start_block)
- #135557 (Point at invalid utf-8 span on user's source code)
- #135596 (Properly note when query stack is being cut off)
- #135794 (Detect missing fields with default values and suggest `..`)
- #135814 (ci: use ghcr buildkit image)
- #135826 (Misc. `rustc_resolve` cleanups)
- #135837 (Remove test panic from File::open)
- #135856 (Library: Finalize dyn compatibility renaming)
r? `@ghost`
`@rustbot` modify labels: rollup
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```
error: couldn't read `$DIR/not-utf8-bin-file.rs`: stream did not contain valid UTF-8
--> $DIR/not-utf8-2.rs:6:5
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LL | include!("not-utf8-bin-file.rs");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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note: `[193]` is not valid utf-8
--> $DIR/not-utf8-bin-file.rs:2:14
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LL | let _ = "�|�␂!5�cc␕␂��";
| ^
= note: this error originates in the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
```
When we attempt to load a Rust source code file, if there is a OS file failure we try reading the file as bytes. If that succeeds we try to turn it into UTF-8. If *that* fails, we provide additional context about *where* the file has the first invalid UTF-8 character.
Fix #76869.
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by adding `-Zpanic_abort_test`, which is a no-op on panic=unwind targets
fixes #135819
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turn rustc_box into an intrinsic
I am not entirely sure why this was made a special magic attribute, but an intrinsic seems like a more natural way to add magic expressions to the language.
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r=oli-obk
Improve infer (`_`) suggestions in `const`s and `static`s
Fixes https://github.com/rust-lang/rust/issues/135010.
This PR does a few things to (imo) greatly improve the error message when users write something like `static FOO: [i32; _] = [1, 2, 3]`.
Firstly, it adapts the recovery code for when we encounter `_` in a const/static to work a bit more like `fn foo() -> _`, and removes the somewhat redundant query `diagnostic_only_typeck`.
Secondly, it changes the lowering for `[T; _]` to always lower under the `feature(generic_arg_infer)` logic to `ConstArgKind::Infer`. We still issue the feature error, so it's not doing anything *observable* on the good path, but it does mean that we no longer erroneously interpret `[T; _]`'s array length as a `_` **wildcard expression** (à la destructuring assignment, like `(_, y) = expr`).
Lastly it makes the suggestions verbose and fixes (well, suppresses) a bug with stashing and suggestions.
r? oli-obk
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compiletest: Remove the `-test` suffix from normalize directives
This suffix was an artifact of using the same condition-checking engine as the `ignore-*` and `only-*` directives, but in practice we have only 2 tests that legitimately use a condition, and both of them only care about 32-bit vs 64-bit.
This PR detaches `normalize-*` directives from the condition checker, and replaces it with a much simpler system of four explicit `NormalizeKind` values. It then takes advantage of that simplicity to get rid of the `-test` suffix.
---
Addresses one of the points of #126372.
The new name-checking code is a bit quaint, but I think it's a definite improvement over the status quo.
---
The corresponding dev-guide update is https://github.com/rust-lang/rustc-dev-guide/pull/2172.
r? jieyouxu
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[macro_metavar_expr_concat] Fix #128346
Fix #128346
Fix #131393
The syntax is invalid in both issues so I guess that theoretically the compiler should have aborted early.
This PR tries to fix a local problem but let me know if there are better options.
cc `@petrochenkov` if you are interested
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Use orphaned error code for the same error it belonged to before.
```
error[E0665]: `#[derive(Default)]` on enum with no `#[default]`
--> $DIR/macros-nonfatal-errors.rs:42:10
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LL | #[derive(Default)]
| ^^^^^^^
LL | / enum NoDeclaredDefault {
LL | | Foo,
LL | | Bar,
LL | | }
| |_- this enum needs a unit variant marked with `#[default]`
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= note: this error originates in the derive macro `Default` (in Nightly builds, run with -Z macro-backtrace for more info)
help: make this unit variant default by placing `#[default]` on it
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LL | #[default] Foo,
| ~~~~~~~~~~~~~~
help: make this unit variant default by placing `#[default]` on it
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LL | #[default] Bar,
| ~~~~~~~~~~~~~~
```
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Done with
```bash
sd '//@ pretty-expanded.*\n' '' tests/ui/**/*.rs
```
and
```
sd '//@pretty-expanded.*\n' '' tests/ui/**/*.rs
```
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Add specific diagnostic for using macro_rules macro as attribute/derive
Fixes #132928
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library feature"
This is consistent with all other diagnostics I could find containing
features and enables the use of `DiagSymbolList` for generalizing
diagnostics for unstable library features to multiple features.
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Much like the previous commit.
I think the removal of "the token" in each message is fine here. There
are many more error messages that mention tokens without saying "the
token" than those that do say it.
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By using `token_descr`, as is done for many other errors, we can get
slightly better descriptions in error messages, e.g.
"macro expansion ignores token `let` and any following" becomes
"macro expansion ignores keyword `let` and any tokens following".
This will be more important once invisible delimiters start being
mentioned in error messages -- without this commit, that leads to error
messages such as "error at ``" because invisible delimiters are
pretty printed as an empty string.
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These are all standard dictionary words and don't require hyphenation.
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Special treatment empty tuple when suggest adding a string literal in format macro.
For example:
```rust
let s = "123";
println!({}, "sss", s);
```
Suggest:
`println!("{:?} {} {}", {}, "sss", s);`
fixes #130170
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macro.
For example:
```rust
let s = "123";
println!({}, "sss", s);
```
Suggest:
`println!("{:?} {} {}", {}, "sss", s);`
fixes #130170
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Implement RFC3695 Allow boolean literals as cfg predicates
This PR implements https://github.com/rust-lang/rfcs/pull/3695: allow boolean literals as cfg predicates, i.e. `cfg(true)` and `cfg(false)`.
r? `@nnethercote` *(or anyone with parser knowledge)*
cc `@clubby789`
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Co-authored-by: Michael Goulet <michael@errs.io>
Co-authored-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
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Fix `break_last_token`.
It currently doesn't handle the three-char tokens `>>=` and `<<=` correctly. These can be broken twice, resulting in three individual tokens. This is a latent bug that currently doesn't cause any problems, but does cause problems for #124141, because that PR increases the usage of lazy token streams.
r? `@petrochenkov`
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It currently doesn't handle the three-char tokens `>>=` and `<<=`
correctly. These can be broken twice, resulting in three individual
tokens. This is a latent bug that currently doesn't cause any problems,
but does cause problems for #124141, because that PR increases the usage
of lazy token streams.
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In 2021 pat was changed to recognize `|` at the top level, with
pat_param added to retain the old behavior. This means
pat is subject to the same cross-edition behavior as expr will be in
2024.
Co-authored-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
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There's a subtle interaction between macros with metavar expressions and the
edition-dependent fragment matching behavior. This test illustrates the current
behavior when using macro-generating-macros across crate boundaries with
different editions.
Co-Authored-By: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Co-Authored-By: Eric Holk <eric@theincredibleholk.org>
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This commit does the following.
- Renames `collect_tokens_trailing_token` as `collect_tokens`, because
(a) it's annoying long, and (b) the `_trailing_token` bit is less
accurate now that its types have changed.
- In `collect_tokens`, adds a `Option<CollectPos>` argument and a
`UsePreAttrPos` in the return type of `f`. These are used in
`parse_expr_force_collect` (for vanilla expressions) and in
`parse_stmt_without_recovery` (for two different cases of expression
statements). Together these ensure are enough to fix all the problems
with token collection and assoc expressions. The changes to the
`stringify.rs` test demonstrate some of these.
- Adds a new test. The code in this test was causing an assertion
failure prior to this commit, due to an invalid `NodeRange`.
The extra complexity is annoying, but necessary to fix the existing
problems.
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A couple of these are marked `FIXME` because they demonstrate existing
bugs with token collection.
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r=eholk,compiler-errors
[RFC] mbe: consider the `_` in 2024 an expression
This commit is adding the possibility to parse the `_` as an expression inside the esition 2024.
Link: https://rust-lang.zulipchat.com/#narrow/stream/404510-wg-macros/topic/supporting.20.60_.60.20expressions
Issue https://github.com/rust-lang/rust/issues/123742
r? `@eholk`
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Co-authored-by: Eric Holk <eric@theincredibleholk.org>
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
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