Diagnostics for let mut in item context #133143
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
r? @chenyukang rustbot has assigned @chenyukang. Use |
rustbot
added
S-waiting-on-review
This was referenced Nov 17, 2024
kornelski
force-pushed
the
let-mut-global
branch
from
a551e5f to
7765f23
Compare
compiler-errors
approved these changes
Nov 18, 2024
|
r? compiler-errors @bors r+ rollup |
bors
added
S-waiting-on-bors
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Nov 18, 2024
Rollup of 7 pull requests Successful merges: - rust-lang#132795 (Check `use<..>` in RPITIT for refinement) - rust-lang#132944 (add parentheses when unboxing suggestion needed) - rust-lang#132993 (Make rustc consider itself a stable compiler when `RUSTC_BOOTSTRAP=-1`) - rust-lang#133130 (`suggest_borrow_generic_arg`: instantiate clauses properly) - rust-lang#133133 (rustdoc-search: add standalone trailing `::` test) - rust-lang#133143 (Diagnostics for let mut in item context) - rust-lang#133147 (Fixup some test directives) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Nov 18, 2024
Rollup merge of rust-lang#133143 - kornelski:let-mut-global, r=compiler-errors Diagnostics for let mut in item context The diagnostics for `let` at the top level did not account for `let mut`, which [made the error unclear](https://users.rust-lang.org/t/create-a-vector-of-constants-outside-main/121251/1). I've made the diagnostic always display a link to valid items. I've added dedicated help for `let mut` case that suggests using a `Mutex` (to steer novice users away from the `static mut` trap). Unfortunately, neither the Rust book, nor libstd docs have dedicated section listing all other types for interior-mutable `static`s.
jhpratt
added a commit
to jhpratt/rust
that referenced
this pull request
Nov 18, 2024
Document alternatives to `static mut` In rust-lang#133143 I've noticed alternatives to `static mut` aren't documented anywhere.
matthiaskrgr
added a commit
to matthiaskrgr/rust
that referenced
this pull request
Nov 18, 2024
Document alternatives to `static mut` In rust-lang#133143 I've noticed alternatives to `static mut` aren't documented anywhere.
rust-timer
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Nov 18, 2024
Rollup merge of rust-lang#133145 - kornelski:static-mutex, r=traviscross Document alternatives to `static mut` In rust-lang#133143 I've noticed alternatives to `static mut` aren't documented anywhere.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
5 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The diagnostics for
letat the top level did not account forlet mut, which made the error unclear.I've made the diagnostic always display a link to valid items. I've added dedicated help for
let mutcase that suggests using aMutex(to steer novice users away from thestatic muttrap). Unfortunately, neither the Rust book, nor libstd docs have dedicated section listing all other types for interior-mutablestatics.