update cfg_select! documentation#143941
Merged
bors merged 1 commit intorust-lang:masterfrom Jul 15, 2025
Merged
Conversation
rustbot
added
S-waiting-on-review
traviscross
reviewed
Jul 14, 2025
tests/ui/macros/cfg_select.rs
Outdated
| } | ||
|
|
||
| cfg_select! {} | ||
| //~^ ERROR none of the rules in this `cfg_select` evaluated to true |
Contributor
There was a problem hiding this comment.
It's not necessarily a matter for this PR, but we should probably update this to refer to predicates rather than rules.
Contributor
Author
There was a problem hiding this comment.
I think it's easier to just have the terminology be consistent, so I replaced "rule" with "predicate" everywhere.
and make internal terminology consistent Co-authored-by: Travis Cross <tc@traviscross.com>
folkertdev
force-pushed
the
cfg-select-docs
branch
from
b657a5e to
d0153f5
Compare
Contributor
|
Thanks @folkertdev for making this update. @bors r+ rollup |
Collaborator
bors
added
S-waiting-on-bors
jhpratt
added a commit
to jhpratt/rust
that referenced
this pull request
Jul 15, 2025
…iscross update `cfg_select!` documentation tracking issue: rust-lang#115585 After rust-lang#143461, and with an eye on a soon(ish) stabilization, I think the docs need some work. The existing text read more like a motivation for the feature existing to me, so I've tried to now be a bit more descriptive. Still, suggestions are very welcome. I also added a test for an empty `select! {}` because it's just the sort of thing that might break. r? `@traviscross`
bors
added a commit
that referenced
this pull request
Jul 15, 2025
Rollup of 16 pull requests Successful merges: - #142301 (tests: Fix duplicated-path-in-error fail with musl) - #142936 (rustdoc-json: Structured attributes) - #143355 (wrapping shift: remove first bitmask and table) - #143630 (Drop `./x suggest`) - #143738 (Move several float tests to floats/mod.rs) - #143752 (Don't panic if WASI_SDK_PATH not set when detecting compiler) - #143820 (Fixed a core crate compilation failure when enabling the `optimize_for_size` feature on some targets) - #143837 (Adjust `run_make_support::symbols` helpers) - #143878 (Port `#[pointee]` to the new attribute parsing infrastructure) - #143907 (core: make `str::split_at_unchecked()` inline) - #143910 (Add experimental `backtrace-trace-only` std feature) - #143927 (Preserve constness in trait objects up to hir ty lowering) - #143935 (rustc_type_ir/walk: move docstring to `TypeWalker` itself) - #143938 (Update books) - #143941 (update `cfg_select!` documentation) - #143948 (Update mdbook to 0.4.52) Failed merges: - #143926 (Remove deprecated fields in bootstrap) r? `@ghost` `@rustbot` modify labels: rollup
bors
added a commit
that referenced
this pull request
Jul 15, 2025
Rollup of 16 pull requests Successful merges: - #142301 (tests: Fix duplicated-path-in-error fail with musl) - #142936 (rustdoc-json: Structured attributes) - #143355 (wrapping shift: remove first bitmask and table) - #143630 (Drop `./x suggest`) - #143738 (Move several float tests to floats/mod.rs) - #143752 (Don't panic if WASI_SDK_PATH not set when detecting compiler) - #143820 (Fixed a core crate compilation failure when enabling the `optimize_for_size` feature on some targets) - #143837 (Adjust `run_make_support::symbols` helpers) - #143878 (Port `#[pointee]` to the new attribute parsing infrastructure) - #143907 (core: make `str::split_at_unchecked()` inline) - #143910 (Add experimental `backtrace-trace-only` std feature) - #143927 (Preserve constness in trait objects up to hir ty lowering) - #143935 (rustc_type_ir/walk: move docstring to `TypeWalker` itself) - #143938 (Update books) - #143941 (update `cfg_select!` documentation) - #143948 (Update mdbook to 0.4.52) Failed merges: - #143926 (Remove deprecated fields in bootstrap) r? `@ghost` `@rustbot` modify labels: rollup
bors
added a commit
that referenced
this pull request
Jul 15, 2025
Rollup of 13 pull requests Successful merges: - #142301 (tests: Fix duplicated-path-in-error fail with musl) - #143630 (Drop `./x suggest`) - #143736 (Give all bytes of TypeId provenance) - #143752 (Don't panic if WASI_SDK_PATH not set when detecting compiler) - #143837 (Adjust `run_make_support::symbols` helpers) - #143878 (Port `#[pointee]` to the new attribute parsing infrastructure) - #143905 (Recover and suggest to use `;` to construct array type) - #143907 (core: make `str::split_at_unchecked()` inline) - #143910 (Add experimental `backtrace-trace-only` std feature) - #143927 (Preserve constness in trait objects up to hir ty lowering) - #143935 (rustc_type_ir/walk: move docstring to `TypeWalker` itself) - #143938 (Update books) - #143941 (update `cfg_select!` documentation) Failed merges: - #143926 (Remove deprecated fields in bootstrap) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer
added a commit
that referenced
this pull request
Jul 15, 2025
Rollup merge of #143941 - folkertdev:cfg-select-docs, r=traviscross update `cfg_select!` documentation tracking issue: #115585 After #143461, and with an eye on a soon(ish) stabilization, I think the docs need some work. The existing text read more like a motivation for the feature existing to me, so I've tried to now be a bit more descriptive. Still, suggestions are very welcome. I also added a test for an empty `select! {}` because it's just the sort of thing that might break. r? ``@traviscross``
github-actions bot
pushed a commit
to rust-lang/rustc-dev-guide
that referenced
this pull request
Jul 17, 2025
Rollup of 13 pull requests Successful merges: - rust-lang/rust#142301 (tests: Fix duplicated-path-in-error fail with musl) - rust-lang/rust#143630 (Drop `./x suggest`) - rust-lang/rust#143736 (Give all bytes of TypeId provenance) - rust-lang/rust#143752 (Don't panic if WASI_SDK_PATH not set when detecting compiler) - rust-lang/rust#143837 (Adjust `run_make_support::symbols` helpers) - rust-lang/rust#143878 (Port `#[pointee]` to the new attribute parsing infrastructure) - rust-lang/rust#143905 (Recover and suggest to use `;` to construct array type) - rust-lang/rust#143907 (core: make `str::split_at_unchecked()` inline) - rust-lang/rust#143910 (Add experimental `backtrace-trace-only` std feature) - rust-lang/rust#143927 (Preserve constness in trait objects up to hir ty lowering) - rust-lang/rust#143935 (rustc_type_ir/walk: move docstring to `TypeWalker` itself) - rust-lang/rust#143938 (Update books) - rust-lang/rust#143941 (update `cfg_select!` documentation) Failed merges: - rust-lang/rust#143926 (Remove deprecated fields in bootstrap) r? `@ghost` `@rustbot` modify labels: rollup
Muscraft
pushed a commit
to Muscraft/rust
that referenced
this pull request
Jul 21, 2025
…iscross update `cfg_select!` documentation tracking issue: rust-lang#115585 After rust-lang#143461, and with an eye on a soon(ish) stabilization, I think the docs need some work. The existing text read more like a motivation for the feature existing to me, so I've tried to now be a bit more descriptive. Still, suggestions are very welcome. I also added a test for an empty `select! {}` because it's just the sort of thing that might break. r? ``@traviscross``
Muscraft
pushed a commit
to Muscraft/rust
that referenced
this pull request
Jul 21, 2025
…eltardieu Rollup of 13 pull requests Successful merges: - rust-lang#142301 (tests: Fix duplicated-path-in-error fail with musl) - rust-lang#143630 (Drop `./x suggest`) - rust-lang#143736 (Give all bytes of TypeId provenance) - rust-lang#143752 (Don't panic if WASI_SDK_PATH not set when detecting compiler) - rust-lang#143837 (Adjust `run_make_support::symbols` helpers) - rust-lang#143878 (Port `#[pointee]` to the new attribute parsing infrastructure) - rust-lang#143905 (Recover and suggest to use `;` to construct array type) - rust-lang#143907 (core: make `str::split_at_unchecked()` inline) - rust-lang#143910 (Add experimental `backtrace-trace-only` std feature) - rust-lang#143927 (Preserve constness in trait objects up to hir ty lowering) - rust-lang#143935 (rustc_type_ir/walk: move docstring to `TypeWalker` itself) - rust-lang#143938 (Update books) - rust-lang#143941 (update `cfg_select!` documentation) Failed merges: - rust-lang#143926 (Remove deprecated fields in bootstrap) r? `@ghost` `@rustbot` modify labels: rollup
github-actions bot
pushed a commit
to model-checking/verify-rust-std
that referenced
this pull request
Jul 29, 2025
…iscross update `cfg_select!` documentation tracking issue: rust-lang#115585 After rust-lang#143461, and with an eye on a soon(ish) stabilization, I think the docs need some work. The existing text read more like a motivation for the feature existing to me, so I've tried to now be a bit more descriptive. Still, suggestions are very welcome. I also added a test for an empty `select! {}` because it's just the sort of thing that might break. r? ``@traviscross``
5 tasks
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
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.
tracking issue: #115585
After #143461, and with an eye on a soon(ish) stabilization, I think the docs need some work.
The existing text read more like a motivation for the feature existing to me, so I've tried to now be a bit more descriptive. Still, suggestions are very welcome.
I also added a test for an empty
select! {}because it's just the sort of thing that might break.r? @traviscross