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Treat unions as 'data types' in attr parsing diagnostics

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This commit is contained in:
Jamie Hill-Daniel 2026-01-29 15:51:43 +00:00
parent 80b898258d
commit b226583d94
13 changed files with 85 additions and 85 deletions
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2
compiler/rustc_attr_parsing/src/target_checking.rs
View file

@ -205,7 +205,7 @@ pub(crate) fn allowed_targets_applied(
];
const IMPL_LIKE: &[Target] =
&[Target::Impl { of_trait: false }, Target::Impl { of_trait: true }];
const ADT_LIKE: &[Target] = &[Target::Struct, Target::Enum];
const ADT_LIKE: &[Target] = &[Target::Struct, Target::Enum, Target::Union];
let mut added_fake_targets = Vec::new();
filter_targets(

6
tests/ui/attributes/attr-on-mac-call.stderr
View file

@ -55,7 +55,7 @@ LL | #[deprecated]
| ^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, unions, and use statements
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, and use statements
warning: `#[inline]` attribute cannot be used on macro calls
--> $DIR/attr-on-mac-call.rs:24:5
@ -136,7 +136,7 @@ LL | #[deprecated]
| ^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, unions, and use statements
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, and use statements
warning: `#[automatically_derived]` attribute cannot be used on macro calls
--> $DIR/attr-on-mac-call.rs:51:5
@ -163,7 +163,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[no_implicit_prelude]` attribute cannot be used on macro calls
--> $DIR/attr-on-mac-call.rs:60:5

2
tests/ui/deprecation/deprecated-expr-precedence.stderr
View file

@ -5,7 +5,7 @@ LL | #[deprecated] 0
| ^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, unions, and use statements
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, and use statements
= note: requested on the command line with `-W unused-attributes`
error[E0308]: mismatched types

2
tests/ui/deprecation/deprecation-sanity.stderr
View file

@ -83,7 +83,7 @@ LL | #[deprecated = "hello"]
| ^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, unions, and use statements
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, and use statements
= note: `#[deny(useless_deprecated)]` on by default
error: aborting due to 10 previous errors

10
tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr
View file

@ -1055,7 +1055,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[must_use]` attribute cannot be used on modules
--> $DIR/issue-43106-gating-of-builtin-attrs.rs:766:17
@ -1064,7 +1064,7 @@ LL | mod inner { #![must_use] }
| ^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[must_use]` attribute cannot be used on type aliases
--> $DIR/issue-43106-gating-of-builtin-attrs.rs:775:5
@ -1073,7 +1073,7 @@ LL | #[must_use] type T = S;
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[must_use]` attribute cannot be used on inherent impl blocks
--> $DIR/issue-43106-gating-of-builtin-attrs.rs:780:5
@ -1082,7 +1082,7 @@ LL | #[must_use] impl S { }
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![windows_subsystem]`
--> $DIR/issue-43106-gating-of-builtin-attrs.rs:786:1
@ -1635,7 +1635,7 @@ LL | #![must_use]
| ^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: 175 warnings emitted

2
tests/ui/lint/fn_must_use.stderr
View file

@ -5,7 +5,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
= help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
= note: requested on the command line with `-W unused-attributes`
warning: unused return value of `need_to_use_this_value` that must be used

2
tests/ui/lint/must_not_suspend/other_items.stderr
View file

@ -4,7 +4,7 @@ error: `#[must_not_suspend]` attribute cannot be used on modules
LL | #[must_not_suspend]
| ^^^^^^^^^^^^^^^^^^^
|
= help: `#[must_not_suspend]` can be applied to data types, traits, and unions
= help: `#[must_not_suspend]` can be applied to data types and traits
error: aborting due to 1 previous error

2
tests/ui/lint/must_not_suspend/return.stderr
View file

@ -4,7 +4,7 @@ error: `#[must_not_suspend]` attribute cannot be used on functions
LL | #[must_not_suspend]
| ^^^^^^^^^^^^^^^^^^^
|
= help: `#[must_not_suspend]` can be applied to data types, traits, and unions
= help: `#[must_not_suspend]` can be applied to data types and traits
error: aborting due to 1 previous error

44
tests/ui/lint/unused/unused_attributes-must_use.stderr
View file

@ -5,7 +5,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
note: the lint level is defined here
--> $DIR/unused_attributes-must_use.rs:4:9
|
@ -19,7 +19,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on modules
--> $DIR/unused_attributes-must_use.rs:11:1
@ -28,7 +28,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on use statements
--> $DIR/unused_attributes-must_use.rs:15:1
@ -37,7 +37,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on constants
--> $DIR/unused_attributes-must_use.rs:19:1
@ -46,7 +46,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on statics
--> $DIR/unused_attributes-must_use.rs:22:1
@ -55,7 +55,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on inherent impl blocks
--> $DIR/unused_attributes-must_use.rs:40:1
@ -64,7 +64,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on foreign modules
--> $DIR/unused_attributes-must_use.rs:55:1
@ -73,7 +73,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on foreign statics
--> $DIR/unused_attributes-must_use.rs:59:5
@ -82,7 +82,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on type aliases
--> $DIR/unused_attributes-must_use.rs:73:1
@ -91,7 +91,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on type parameters
--> $DIR/unused_attributes-must_use.rs:77:8
@ -100,7 +100,7 @@ LL | fn qux<#[must_use] T>(_: T) {}
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on associated consts
--> $DIR/unused_attributes-must_use.rs:82:5
@ -109,7 +109,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on associated types
--> $DIR/unused_attributes-must_use.rs:85:5
@ -118,7 +118,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on trait impl blocks
--> $DIR/unused_attributes-must_use.rs:95:1
@ -127,7 +127,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on trait methods in impl blocks
--> $DIR/unused_attributes-must_use.rs:100:5
@ -136,7 +136,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
= help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
error: `#[must_use]` attribute cannot be used on trait aliases
--> $DIR/unused_attributes-must_use.rs:107:1
@ -145,7 +145,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on macro defs
--> $DIR/unused_attributes-must_use.rs:111:1
@ -154,7 +154,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on statements
--> $DIR/unused_attributes-must_use.rs:120:5
@ -163,7 +163,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on closures
--> $DIR/unused_attributes-must_use.rs:125:13
@ -172,7 +172,7 @@ LL | let x = #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, foreign functions, functions, methods, traits, and unions
= help: `#[must_use]` can be applied to data types, foreign functions, functions, methods, and traits
error: `#[must_use]` attribute cannot be used on match arms
--> $DIR/unused_attributes-must_use.rs:148:9
@ -181,7 +181,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on struct fields
--> $DIR/unused_attributes-must_use.rs:157:28
@ -190,7 +190,7 @@ LL | let s = PatternField { #[must_use] foo: 123 };
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: `#[must_use]` attribute cannot be used on pattern fields
--> $DIR/unused_attributes-must_use.rs:159:24
@ -199,7 +199,7 @@ LL | let PatternField { #[must_use] foo } = s;
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
error: unused `X` that must be used
--> $DIR/unused_attributes-must_use.rs:130:5

76
tests/ui/pin-ergonomics/pin_v2-attr.stderr
View file

@ -4,7 +4,7 @@ error: `#[pin_v2]` attribute cannot be used on macro calls
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: allow, cfg, cfg_attr, deny, expect, forbid, and warn are the only allowed built-in attributes in function parameters
--> $DIR/pin_v2-attr.rs:84:12
@ -18,7 +18,7 @@ error: `#[pin_v2]` attribute cannot be used on crates
LL | #![pin_v2]
| ^^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on type parameters
--> $DIR/pin_v2-attr.rs:27:10
@ -26,7 +26,7 @@ error: `#[pin_v2]` attribute cannot be used on type parameters
LL | enum Foo<#[pin_v2] T, #[pin_v2] U = ()> {
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on type parameters
--> $DIR/pin_v2-attr.rs:27:23
@ -34,7 +34,7 @@ error: `#[pin_v2]` attribute cannot be used on type parameters
LL | enum Foo<#[pin_v2] T, #[pin_v2] U = ()> {
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on enum variants
--> $DIR/pin_v2-attr.rs:30:5
@ -42,7 +42,7 @@ error: `#[pin_v2]` attribute cannot be used on enum variants
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on struct fields
--> $DIR/pin_v2-attr.rs:32:18
@ -50,7 +50,7 @@ error: `#[pin_v2]` attribute cannot be used on struct fields
LL | TupleVariant(#[pin_v2] T),
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on struct fields
--> $DIR/pin_v2-attr.rs:34:9
@ -58,7 +58,7 @@ error: `#[pin_v2]` attribute cannot be used on struct fields
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on traits
--> $DIR/pin_v2-attr.rs:39:1
@ -66,7 +66,7 @@ error: `#[pin_v2]` attribute cannot be used on traits
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on associated consts
--> $DIR/pin_v2-attr.rs:41:5
@ -74,7 +74,7 @@ error: `#[pin_v2]` attribute cannot be used on associated consts
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on associated types
--> $DIR/pin_v2-attr.rs:43:5
@ -82,7 +82,7 @@ error: `#[pin_v2]` attribute cannot be used on associated types
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on required trait methods
--> $DIR/pin_v2-attr.rs:46:5
@ -90,7 +90,7 @@ error: `#[pin_v2]` attribute cannot be used on required trait methods
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on provided trait methods
--> $DIR/pin_v2-attr.rs:48:5
@ -98,7 +98,7 @@ error: `#[pin_v2]` attribute cannot be used on provided trait methods
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on trait aliases
--> $DIR/pin_v2-attr.rs:52:1
@ -106,7 +106,7 @@ error: `#[pin_v2]` attribute cannot be used on trait aliases
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on inherent impl blocks
--> $DIR/pin_v2-attr.rs:55:1
@ -114,7 +114,7 @@ error: `#[pin_v2]` attribute cannot be used on inherent impl blocks
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on delegations
--> $DIR/pin_v2-attr.rs:58:5
@ -122,7 +122,7 @@ error: `#[pin_v2]` attribute cannot be used on delegations
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on inherent methods
--> $DIR/pin_v2-attr.rs:61:5
@ -130,7 +130,7 @@ error: `#[pin_v2]` attribute cannot be used on inherent methods
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on trait impl blocks
--> $DIR/pin_v2-attr.rs:65:1
@ -138,7 +138,7 @@ error: `#[pin_v2]` attribute cannot be used on trait impl blocks
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on trait methods in impl blocks
--> $DIR/pin_v2-attr.rs:67:5
@ -146,7 +146,7 @@ error: `#[pin_v2]` attribute cannot be used on trait methods in impl blocks
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on extern crates
--> $DIR/pin_v2-attr.rs:71:1
@ -154,7 +154,7 @@ error: `#[pin_v2]` attribute cannot be used on extern crates
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on use statements
--> $DIR/pin_v2-attr.rs:74:1
@ -162,7 +162,7 @@ error: `#[pin_v2]` attribute cannot be used on use statements
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on statics
--> $DIR/pin_v2-attr.rs:77:1
@ -170,7 +170,7 @@ error: `#[pin_v2]` attribute cannot be used on statics
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on constants
--> $DIR/pin_v2-attr.rs:80:1
@ -178,7 +178,7 @@ error: `#[pin_v2]` attribute cannot be used on constants
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on functions
--> $DIR/pin_v2-attr.rs:83:1
@ -186,7 +186,7 @@ error: `#[pin_v2]` attribute cannot be used on functions
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on function params
--> $DIR/pin_v2-attr.rs:84:12
@ -194,7 +194,7 @@ error: `#[pin_v2]` attribute cannot be used on function params
LL | fn f<T, U>(#[pin_v2] param: Foo<T, U>)
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on closures
--> $DIR/pin_v2-attr.rs:92:5
@ -202,7 +202,7 @@ error: `#[pin_v2]` attribute cannot be used on closures
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on expressions
--> $DIR/pin_v2-attr.rs:94:5
@ -210,7 +210,7 @@ error: `#[pin_v2]` attribute cannot be used on expressions
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on struct fields
--> $DIR/pin_v2-attr.rs:98:9
@ -218,7 +218,7 @@ error: `#[pin_v2]` attribute cannot be used on struct fields
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on statements
--> $DIR/pin_v2-attr.rs:96:5
@ -226,7 +226,7 @@ error: `#[pin_v2]` attribute cannot be used on statements
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on match arms
--> $DIR/pin_v2-attr.rs:102:9
@ -234,7 +234,7 @@ error: `#[pin_v2]` attribute cannot be used on match arms
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on pattern fields
--> $DIR/pin_v2-attr.rs:106:13
@ -242,7 +242,7 @@ error: `#[pin_v2]` attribute cannot be used on pattern fields
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on where predicates
--> $DIR/pin_v2-attr.rs:88:5
@ -250,7 +250,7 @@ error: `#[pin_v2]` attribute cannot be used on where predicates
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on modules
--> $DIR/pin_v2-attr.rs:112:1
@ -258,7 +258,7 @@ error: `#[pin_v2]` attribute cannot be used on modules
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on foreign modules
--> $DIR/pin_v2-attr.rs:115:1
@ -266,7 +266,7 @@ error: `#[pin_v2]` attribute cannot be used on foreign modules
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on foreign types
--> $DIR/pin_v2-attr.rs:117:5
@ -274,7 +274,7 @@ error: `#[pin_v2]` attribute cannot be used on foreign types
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on foreign statics
--> $DIR/pin_v2-attr.rs:120:5
@ -282,7 +282,7 @@ error: `#[pin_v2]` attribute cannot be used on foreign statics
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on foreign functions
--> $DIR/pin_v2-attr.rs:123:5
@ -290,7 +290,7 @@ error: `#[pin_v2]` attribute cannot be used on foreign functions
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on type aliases
--> $DIR/pin_v2-attr.rs:127:1
@ -298,7 +298,7 @@ error: `#[pin_v2]` attribute cannot be used on type aliases
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: `#[pin_v2]` attribute cannot be used on macro defs
--> $DIR/pin_v2-attr.rs:130:1
@ -306,7 +306,7 @@ error: `#[pin_v2]` attribute cannot be used on macro defs
LL | #[pin_v2]
| ^^^^^^^^^
|
= help: `#[pin_v2]` can be applied to data types and unions
= help: `#[pin_v2]` can only be applied to data types
error: aborting due to 39 previous errors

2
tests/ui/rfcs/rfc-2008-non-exhaustive/invalid-attribute.stderr
View file

@ -21,7 +21,7 @@ error: `#[non_exhaustive]` attribute cannot be used on unions
LL | #[non_exhaustive]
| ^^^^^^^^^^^^^^^^^
|
= help: `#[non_exhaustive]` can be applied to data types and enum variants
= help: `#[non_exhaustive]` can be applied to enum variants, enums, and structs
error: aborting due to 3 previous errors

16
tests/ui/rfcs/rfc-2565-param-attrs/param-attrs-builtin-attrs.stderr
View file

@ -389,7 +389,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
= note: requested on the command line with `-W unused-attributes`
warning: `#[no_mangle]` attribute cannot be used on function params
@ -408,7 +408,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[no_mangle]` attribute cannot be used on function params
--> $DIR/param-attrs-builtin-attrs.rs:70:9
@ -426,7 +426,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[no_mangle]` attribute cannot be used on function params
--> $DIR/param-attrs-builtin-attrs.rs:89:9
@ -444,7 +444,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[no_mangle]` attribute cannot be used on function params
--> $DIR/param-attrs-builtin-attrs.rs:114:9
@ -462,7 +462,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[no_mangle]` attribute cannot be used on function params
--> $DIR/param-attrs-builtin-attrs.rs:137:9
@ -480,7 +480,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[no_mangle]` attribute cannot be used on function params
--> $DIR/param-attrs-builtin-attrs.rs:156:9
@ -498,7 +498,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[no_mangle]` attribute cannot be used on function params
--> $DIR/param-attrs-builtin-attrs.rs:180:9
@ -516,7 +516,7 @@ LL | #[must_use]
| ^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= help: `#[must_use]` can be applied to data types, functions, traits, and unions
= help: `#[must_use]` can be applied to data types, functions, and traits
warning: `#[no_mangle]` attribute cannot be used on function params
--> $DIR/param-attrs-builtin-attrs.rs:201:9

4
tests/ui/where-clauses/unsupported_attribute.stderr
View file

@ -64,7 +64,7 @@ error: `#[deprecated]` attribute cannot be used on where predicates
LL | #[deprecated] T: Trait,
| ^^^^^^^^^^^^^
|
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, unions, and use statements
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, and use statements
error: `#[deprecated]` attribute cannot be used on where predicates
--> $DIR/unsupported_attribute.rs:25:5
@ -72,7 +72,7 @@ error: `#[deprecated]` attribute cannot be used on where predicates
LL | #[deprecated] 'a: 'static,
| ^^^^^^^^^^^^^
|
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, unions, and use statements
= help: `#[deprecated]` can be applied to associated consts, associated types, constants, crates, data types, enum variants, foreign statics, functions, inherent impl blocks, macro defs, modules, statics, struct fields, traits, type aliases, and use statements
error: `#[automatically_derived]` attribute cannot be used on where predicates
--> $DIR/unsupported_attribute.rs:26:5