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Rollup merge of #138682 - Alexendoo:extra-symbols, r=fee1-dead

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Allow drivers to supply a list of extra symbols to intern

Allows adding new symbols as `const`s in external drivers, desirable in Clippy so we can use them in patterns to replace code like 75530e9f72/src/tools/clippy/clippy_lints/src/casts/cast_ptr_alignment.rs (L66)

The Clippy change adds a couple symbols as a demo, the exact `clippy_utils` API and replacing other usages can be done on the Clippy side to minimise sync conflicts

---

try-job: aarch64-gnu
This commit is contained in:
Stuart Cook 2025-04-11 13:31:44 +10:00 • committed by GitHub
commit 65105f1324
7 changed files with 33 additions and 6 deletions
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4
clippy_lints/src/attrs/deprecated_cfg_attr.rs
View file

@ -1,10 +1,10 @@
use super::{Attribute, DEPRECATED_CFG_ATTR, DEPRECATED_CLIPPY_CFG_ATTR, unnecessary_clippy_cfg};
use clippy_utils::diagnostics::span_lint_and_sugg;
use clippy_utils::msrvs::{self, MsrvStack};
use clippy_utils::sym;
use rustc_ast::AttrStyle;
use rustc_errors::Applicability;
use rustc_lint::EarlyContext;
use rustc_span::sym;
pub(super) fn check(cx: &EarlyContext<'_>, attr: &Attribute, msrv: &MsrvStack) {
// check cfg_attr
@ -18,7 +18,7 @@ pub(super) fn check(cx: &EarlyContext<'_>, attr: &Attribute, msrv: &MsrvStack) {
&& msrv.meets(msrvs::TOOL_ATTRIBUTES)
// check for `rustfmt_skip` and `rustfmt::skip`
&& let Some(skip_item) = &items[1].meta_item()
&& (skip_item.has_name(sym!(rustfmt_skip))
&& (skip_item.has_name(sym::rustfmt_skip)
|| skip_item
.path
.segments

4
clippy_lints/src/attrs/useless_attribute.rs
View file

@ -2,10 +2,10 @@ use super::USELESS_ATTRIBUTE;
use super::utils::{is_lint_level, is_word, namespace_and_lint};
use clippy_utils::diagnostics::span_lint_and_then;
use clippy_utils::source::{SpanRangeExt, first_line_of_span};
use clippy_utils::sym;
use rustc_ast::{Attribute, Item, ItemKind};
use rustc_errors::Applicability;
use rustc_lint::{EarlyContext, LintContext};
use rustc_span::sym;
pub(super) fn check(cx: &EarlyContext<'_>, item: &Item, attrs: &[Attribute]) {
let skip_unused_imports = attrs.iter().any(|attr| attr.has_name(sym::macro_use));
@ -61,7 +61,7 @@ pub(super) fn check(cx: &EarlyContext<'_>, item: &Item, attrs: &[Attribute]) {
if is_word(lint, sym::unused_imports) && skip_unused_imports {
return;
}
if is_word(lint, sym!(unused_extern_crates)) {
if is_word(lint, sym::unused_extern_crates) {
return;
}
},

2
clippy_lints/src/doc/needless_doctest_main.rs
View file

@ -38,7 +38,7 @@ pub fn check(
// of all `#[test]` attributes in not ignored code examples
fn check_code_sample(code: String, edition: Edition, ignore: bool) -> (bool, Vec<Range<usize>>) {
rustc_driver::catch_fatal_errors(|| {
rustc_span::create_session_globals_then(edition, None, || {
rustc_span::create_session_globals_then(edition, &[], None, || {
let mut test_attr_spans = vec![];
let filename = FileName::anon_source_code(&code);