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JonathanBrouwerJonathanBrouwer
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Port #[ignore] to the new attribute parsing infrastructure
1 parent 733b47e commit 9865738

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12 files changed

+88
-39
lines changed

12 files changed

+88
-39
lines changed

‎compiler/rustc_attr_data_structures/src/attributes.rs‎

Lines changed: 7 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -250,6 +250,13 @@ pub enum AttributeKind {
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span: Span,
251251
},
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253+
/// Represents `#[ignore]`
254+
Ignore {
255+
span: Span,
256+
/// ignore can optionally have a reason: `#[ignore = "reason this is ignored"]`
257+
reason: Option<Symbol>,
258+
},
259+
253260
/// Represents `#[inline]` and `#[rustc_force_inline]`.
254261
Inline(InlineAttr, Span),
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‎compiler/rustc_attr_data_structures/src/encode_cross_crate.rs‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -26,6 +26,7 @@ impl AttributeKind {
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Deprecation { .. } => Yes,
2727
DocComment { .. } => Yes,
2828
ExportName { .. } => Yes,
29+
Ignore { .. } => No,
2930
Inline(..) => No,
3031
LinkName { .. } => Yes,
3132
LinkSection { .. } => No,

‎compiler/rustc_attr_parsing/src/attributes/mod.rs‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -41,6 +41,7 @@ pub(crate) mod repr;
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pub(crate) mod rustc_internal;
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pub(crate) mod semantics;
4343
pub(crate) mod stability;
44+
pub(crate) mod test_attrs;
4445
pub(crate) mod traits;
4546
pub(crate) mod transparency;
4647
pub(crate) mod util;

‎compiler/rustc_attr_parsing/src/attributes/test_attrs.rs‎

Lines changed: 34 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,34 @@
1+
use rustc_attr_data_structures::AttributeKind;
2+
use rustc_attr_data_structures::lints::AttributeLintKind;
3+
use rustc_feature::{AttributeTemplate, template};
4+
use rustc_span::{Symbol, sym};
5+
6+
use crate::attributes::{AttributeOrder, OnDuplicate, SingleAttributeParser};
7+
use crate::context::{AcceptContext, Stage};
8+
use crate::parser::ArgParser;
9+
10+
pub(crate) struct IgnoreParser;
11+
12+
impl<S: Stage> SingleAttributeParser<S> for IgnoreParser {
13+
const PATH: &[Symbol] = &[sym::ignore];
14+
const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepLast;
15+
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn;
16+
const TEMPLATE: AttributeTemplate = template!(Word, NameValueStr: "reason");
17+
18+
fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
19+
Some(AttributeKind::Ignore {
20+
span: cx.attr_span,
21+
reason: match args {
22+
ArgParser::NoArgs => None,
23+
ArgParser::NameValue(name_value) => name_value.value_as_str(),
24+
ArgParser::List(_) => {
25+
let suggestions =
26+
<Self as SingleAttributeParser<S>>::TEMPLATE.suggestions(false, "ignore");
27+
let span = cx.attr_span;
28+
cx.emit_lint(AttributeLintKind::IllFormedAttributeInput { suggestions }, span);
29+
return None;
30+
}
31+
},
32+
})
33+
}
34+
}

‎compiler/rustc_attr_parsing/src/context.rs‎

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -37,6 +37,7 @@ use crate::attributes::semantics::MayDangleParser;
3737
use crate::attributes::stability::{
3838
BodyStabilityParser, ConstStabilityIndirectParser, ConstStabilityParser, StabilityParser,
3939
};
40+
use crate::attributes::test_attrs::IgnoreParser;
4041
use crate::attributes::traits::SkipDuringMethodDispatchParser;
4142
use crate::attributes::transparency::TransparencyParser;
4243
use crate::attributes::{AttributeParser as _, Combine, Single, WithoutArgs};
@@ -126,6 +127,7 @@ attribute_parsers!(
126127
// tidy-alphabetical-start
127128
Single<DeprecationParser>,
128129
Single<ExportNameParser>,
130+
Single<IgnoreParser>,
129131
Single<InlineParser>,
130132
Single<LinkNameParser>,
131133
Single<LinkSectionParser>,

‎compiler/rustc_hir/src/hir.rs‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1303,6 +1303,7 @@ impl AttributeExt for Attribute {
13031303
Attribute::Parsed(AttributeKind::Deprecation { span, .. }) => *span,
13041304
Attribute::Parsed(AttributeKind::DocComment { span, .. }) => *span,
13051305
Attribute::Parsed(AttributeKind::MayDangle(span)) => *span,
1306+
Attribute::Parsed(AttributeKind::Ignore { span, .. }) => *span,
13061307
a => panic!("can't get the span of an arbitrary parsed attribute: {a:?}"),
13071308
}
13081309
}

‎compiler/rustc_parse/src/validate_attr.rs‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -304,6 +304,7 @@ fn emit_malformed_attribute(
304304
| sym::naked
305305
| sym::no_mangle
306306
| sym::non_exhaustive
307+
| sym::ignore
307308
| sym::must_use
308309
| sym::track_caller
309310
| sym::link_name
@@ -319,8 +320,7 @@ fn emit_malformed_attribute(
319320

320321
// Some of previously accepted forms were used in practice,
321322
// report them as warnings for now.
322-
let should_warn =
323-
|name| matches!(name, sym::doc | sym::ignore | sym::link | sym::test | sym::bench);
323+
let should_warn = |name| matches!(name, sym::doc | sym::link | sym::test | sym::bench);
324324

325325
let error_msg = format!("malformed `{name}` attribute input");
326326
let mut suggestions = vec![];

‎compiler/rustc_passes/src/check_attr.rs‎

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -215,6 +215,9 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
215215
Attribute::Parsed(AttributeKind::MayDangle(attr_span)) => {
216216
self.check_may_dangle(hir_id, *attr_span)
217217
}
218+
Attribute::Parsed(AttributeKind::Ignore { span, .. }) => {
219+
self.check_generic_attr(hir_id, sym::ignore, *span, target, Target::Fn)
220+
}
218221
Attribute::Parsed(AttributeKind::MustUse { span, .. }) => {
219222
self.check_must_use(hir_id, *span, target)
220223
}
@@ -303,7 +306,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
303306
}
304307
[sym::path, ..] => self.check_generic_attr_unparsed(hir_id, attr, target, Target::Mod),
305308
[sym::macro_export, ..] => self.check_macro_export(hir_id, attr, target),
306-
[sym::ignore, ..] | [sym::should_panic, ..] => {
309+
[sym::should_panic, ..] => {
307310
self.check_generic_attr_unparsed(hir_id, attr, target, Target::Fn)
308311
}
309312
[sym::automatically_derived, ..] => {

‎tests/ui/attributes/malformed-attrs.stderr‎

Lines changed: 9 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -309,15 +309,6 @@ LL | #[link]
309309
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
310310
= note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
311311

312-
error: valid forms for the attribute are `#[ignore]` and `#[ignore = "reason"]`
313-
--> $DIR/malformed-attrs.rs:93:1
314-
|
315-
LL | #[ignore()]
316-
| ^^^^^^^^^^^
317-
|
318-
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
319-
= note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
320-
321312
error: invalid argument
322313
--> $DIR/malformed-attrs.rs:187:1
323314
|
@@ -600,6 +591,15 @@ LL | #[inline = 5]
600591
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
601592
= note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
602593

594+
error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]`
595+
--> $DIR/malformed-attrs.rs:93:1
596+
|
597+
LL | #[ignore()]
598+
| ^^^^^^^^^^^
599+
|
600+
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
601+
= note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
602+
603603
error[E0308]: mismatched types
604604
--> $DIR/malformed-attrs.rs:110:23
605605
|

‎tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr‎

Lines changed: 6 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -367,12 +367,6 @@ warning: `#[should_panic]` only has an effect on functions
367367
LL | #![should_panic]
368368
| ^^^^^^^^^^^^^^^^
369369

370-
warning: `#[ignore]` only has an effect on functions
371-
--> $DIR/issue-43106-gating-of-builtin-attrs.rs:54:1
372-
|
373-
LL | #![ignore]
374-
| ^^^^^^^^^^
375-
376370
warning: `#[proc_macro_derive]` only has an effect on functions
377371
--> $DIR/issue-43106-gating-of-builtin-attrs.rs:60:1
378372
|
@@ -387,6 +381,12 @@ LL | #![link()]
387381
|
388382
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
389383

384+
warning: `#[ignore]` only has an effect on functions
385+
--> $DIR/issue-43106-gating-of-builtin-attrs.rs:54:1
386+
|
387+
LL | #![ignore]
388+
| ^^^^^^^^^^
389+
390390
warning: attribute should be applied to a foreign function or static
391391
--> $DIR/issue-43106-gating-of-builtin-attrs.rs:66:1
392392
|

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