rustc_attr_parsing/attributes/
lint_helpers.rs

1use super::prelude::*;
2
3pub(crate) struct AsPtrParser;
4impl<S: Stage> NoArgsAttributeParser<S> for AsPtrParser {
5    const PATH: &[Symbol] = &[sym::rustc_as_ptr];
6    const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
7    const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[
8        Allow(Target::Fn),
9        Allow(Target::Method(MethodKind::Inherent)),
10        Allow(Target::Method(MethodKind::Trait { body: false })),
11        Allow(Target::Method(MethodKind::Trait { body: true })),
12        Allow(Target::Method(MethodKind::TraitImpl)),
13    ]);
14    const CREATE: fn(Span) -> AttributeKind = AttributeKind::AsPtr;
15}
16
17pub(crate) struct PubTransparentParser;
18impl<S: Stage> NoArgsAttributeParser<S> for PubTransparentParser {
19    const PATH: &[Symbol] = &[sym::rustc_pub_transparent];
20    const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
21    const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[
22        Allow(Target::Struct),
23        Allow(Target::Enum),
24        Allow(Target::Union),
25    ]);
26    const CREATE: fn(Span) -> AttributeKind = AttributeKind::PubTransparent;
27}
28
29pub(crate) struct PassByValueParser;
30impl<S: Stage> NoArgsAttributeParser<S> for PassByValueParser {
31    const PATH: &[Symbol] = &[sym::rustc_pass_by_value];
32    const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
33    const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[
34        Allow(Target::Struct),
35        Allow(Target::Enum),
36        Allow(Target::TyAlias),
37    ]);
38    const CREATE: fn(Span) -> AttributeKind = AttributeKind::PassByValue;
39}
40
41pub(crate) struct AutomaticallyDerivedParser;
42impl<S: Stage> NoArgsAttributeParser<S> for AutomaticallyDerivedParser {
43    const PATH: &[Symbol] = &[sym::automatically_derived];
44    const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn;
45    const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowListWarnRest(&[
46        Allow(Target::Impl { of_trait: true }),
47        Error(Target::Crate),
48        Error(Target::WherePredicate),
49    ]);
50    const CREATE: fn(Span) -> AttributeKind = AttributeKind::AutomaticallyDerived;
51}
rustc_attr_parsing/attributes/lint_helpers.rs

rustc_attr_parsing/attributes/
lint_helpers.rs
