Stabilize the #[diagnostic] namespace and #[diagnostic::on_unimplemented] attribute

This PR stabilizes the `#[diagnostic]` attribute namespace and a minimal
option of the `#[diagnostic::on_unimplemented]` attribute.

The `#[diagnostic]` attribute namespace is meant to provide a home for
attributes that allow users to influence error messages emitted by the
compiler. The compiler is not guaranteed to use any of this hints,
however it should accept any (non-)existing attribute in this namespace
and potentially emit lint-warnings for unused attributes and options.
This is meant to allow discarding certain attributes/options in the
future to allow fundamental changes to the compiler without the need to
keep then non-meaningful options working.

The `#[diagnostic::on_unimplemented]` attribute is allowed to appear
on a trait definition. This allows crate authors to hint the compiler
to emit a specific error message if a certain trait is not implemented.
For the `#[diagnostic::on_unimplemented]` attribute the following
options are implemented:

* `message` which provides the text for the top level error message
* `label` which provides the text for the label shown inline in the
broken code in the error message
* `note` which provides additional notes.

The `note` option can appear several times, which results in several
note messages being emitted. If any of the other options appears several
times the first occurrence of the relevant option specifies the actually
used value. Any other occurrence generates an lint warning. For any
other non-existing option a lint-warning is generated.

All three options accept a text as argument. This text is allowed to
contain format parameters referring to generic argument or `Self` by
name via the `{Self}` or `{NameOfGenericArgument}` syntax. For any
non-existing argument a lint warning is generated.

Tracking issue: #111996
This commit is contained in:
Georg Semmler 2024-01-12 14:22:06 +01:00
parent 91cae1dcdc
commit d013b5a462
No known key found for this signature in database
GPG Key ID: A87BCEE5205CE489
27 changed files with 93 additions and 273 deletions

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@ -203,14 +203,6 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
); );
} }
} }
if !attr.is_doc_comment()
&& let [seg, _] = attr.get_normal_item().path.segments.as_slice()
&& seg.ident.name == sym::diagnostic
&& !self.features.diagnostic_namespace
{
let msg = "`#[diagnostic]` attribute name space is experimental";
gate!(self, diagnostic_namespace, seg.ident.span, msg);
}
// Emit errors for non-staged-api crates. // Emit errors for non-staged-api crates.
if !self.features.staged_api { if !self.features.staged_api {

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@ -146,6 +146,8 @@ declare_features! (
(accepted, derive_default_enum, "1.62.0", Some(86985)), (accepted, derive_default_enum, "1.62.0", Some(86985)),
/// Allows the use of destructuring assignments. /// Allows the use of destructuring assignments.
(accepted, destructuring_assignment, "1.59.0", Some(71126)), (accepted, destructuring_assignment, "1.59.0", Some(71126)),
/// Allows using the `#[diagnostic]` attribute tool namespace
(accepted, diagnostic_namespace, "CURRENT_RUSTC_VERSION", Some(111996)),
/// Allows `#[doc(alias = "...")]`. /// Allows `#[doc(alias = "...")]`.
(accepted, doc_alias, "1.48.0", Some(50146)), (accepted, doc_alias, "1.48.0", Some(50146)),
/// Allows `..` in tuple (struct) patterns. /// Allows `..` in tuple (struct) patterns.

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@ -434,8 +434,6 @@ declare_features! (
(unstable, deprecated_safe, "1.61.0", Some(94978)), (unstable, deprecated_safe, "1.61.0", Some(94978)),
/// Allows having using `suggestion` in the `#[deprecated]` attribute. /// Allows having using `suggestion` in the `#[deprecated]` attribute.
(unstable, deprecated_suggestion, "1.61.0", Some(94785)), (unstable, deprecated_suggestion, "1.61.0", Some(94785)),
/// Allows using the `#[diagnostic]` attribute tool namespace
(unstable, diagnostic_namespace, "1.73.0", Some(111996)),
/// Controls errors in trait implementations. /// Controls errors in trait implementations.
(unstable, do_not_recommend, "1.67.0", Some(51992)), (unstable, do_not_recommend, "1.67.0", Some(51992)),
/// Tells rustdoc to automatically generate `#[doc(cfg(...))]`. /// Tells rustdoc to automatically generate `#[doc(cfg(...))]`.

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@ -202,6 +202,7 @@
// //
// Language features: // Language features:
// tidy-alphabetical-start // tidy-alphabetical-start
#![cfg_attr(bootstrap, feature(diagnostic_namespace))]
#![cfg_attr(bootstrap, feature(platform_intrinsics))] #![cfg_attr(bootstrap, feature(platform_intrinsics))]
#![feature(abi_unadjusted)] #![feature(abi_unadjusted)]
#![feature(adt_const_params)] #![feature(adt_const_params)]
@ -223,7 +224,6 @@
#![feature(const_trait_impl)] #![feature(const_trait_impl)]
#![feature(decl_macro)] #![feature(decl_macro)]
#![feature(deprecated_suggestion)] #![feature(deprecated_suggestion)]
#![feature(diagnostic_namespace)]
#![feature(doc_cfg)] #![feature(doc_cfg)]
#![feature(doc_cfg_hide)] #![feature(doc_cfg_hide)]
#![feature(doc_notable_trait)] #![feature(doc_notable_trait)]

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@ -1,84 +0,0 @@
# `diagnostic_namespace`
The tracking issue for this feature is: [#111996]
[#111996]: https://github.com/rust-lang/rust/issues/111996
------------------------
The `diagnostic_namespace` feature permits customization of compilation errors.
## diagnostic::on_unimplemented
With [#114452] support for `diagnostic::on_unimplemented` was added.
When used on a trait declaration, the following options are available:
* `message` to customize the primary error message
* `note` to add a customized note message to an error message
* `label` to customize the label part of the error message
The attribute will hint to the compiler to use these in error messages:
```rust
// some library
#![feature(diagnostic_namespace)]
#[diagnostic::on_unimplemented(
message = "cannot insert element",
label = "cannot be put into a table",
note = "see <link> for more information about the Table api"
)]
pub trait Element {
// ...
}
```
```rust,compile_fail,E0277
# #![feature(diagnostic_namespace)]
#
# #[diagnostic::on_unimplemented(
# message = "cannot insert element",
# label = "cannot be put into a table",
# note = "see <link> for more information about the Table api"
# )]
# pub trait Element {
# // ...
# }
# struct Table;
# impl Table {
# fn insert<T: Element>(&self, element: T) {
# // ..
# }
# }
# fn main() {
# let table = Table;
# let element = ();
// user code
table.insert(element);
# }
```
```text
error[E0277]: cannot insert element
--> src/main.rs:24:18
|
24 | table.insert(element);
| ------ ^^^^^^^ cannot be put into a table
| |
| required by a bound introduced by this call
|
= help: the trait `Element` is not implemented for `<type>`
= note: see <link> for more information about the Table api
note: required by a bound in `Table::insert`
--> src/main.rs:15:18
|
15 | fn insert<T: Element>(&self, element: T) {
| ^^^^^^^ required by this bound in `Table::insert`
For more information about this error, try `rustc --explain E0277`.
```
See [RFC 3368] for more information.
[#114452]: https://github.com/rust-lang/rust/pull/114452
[RFC 3368]: https://github.com/rust-lang/rfcs/blob/master/text/3368-diagnostic-attribute-namespace.md

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@ -1,4 +1,3 @@
#![feature(diagnostic_namespace)]
//@ check-pass //@ check-pass
//@ aux-build:proc-macro-helper.rs //@ aux-build:proc-macro-helper.rs

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@ -1,13 +0,0 @@
#[diagnostic::non_existing_attribute]
//~^ERROR `#[diagnostic]` attribute name space is experimental [E0658]
//~|WARNING unknown diagnostic attribute [unknown_or_malformed_diagnostic_attributes]
pub trait Bar {
}
#[diagnostic::non_existing_attribute(with_option = "foo")]
//~^ERROR `#[diagnostic]` attribute name space is experimental [E0658]
//~|WARNING unknown diagnostic attribute [unknown_or_malformed_diagnostic_attributes]
struct Foo;
fn main() {
}

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@ -1,37 +0,0 @@
error[E0658]: `#[diagnostic]` attribute name space is experimental
--> $DIR/feature-gate-diagnostic_namespace.rs:1:3
|
LL | #[diagnostic::non_existing_attribute]
| ^^^^^^^^^^
|
= note: see issue #111996 <https://github.com/rust-lang/rust/issues/111996> for more information
= help: add `#![feature(diagnostic_namespace)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error[E0658]: `#[diagnostic]` attribute name space is experimental
--> $DIR/feature-gate-diagnostic_namespace.rs:7:3
|
LL | #[diagnostic::non_existing_attribute(with_option = "foo")]
| ^^^^^^^^^^
|
= note: see issue #111996 <https://github.com/rust-lang/rust/issues/111996> for more information
= help: add `#![feature(diagnostic_namespace)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
warning: unknown diagnostic attribute
--> $DIR/feature-gate-diagnostic_namespace.rs:1:15
|
LL | #[diagnostic::non_existing_attribute]
| ^^^^^^^^^^^^^^^^^^^^^^
|
= note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default
warning: unknown diagnostic attribute
--> $DIR/feature-gate-diagnostic_namespace.rs:7:15
|
LL | #[diagnostic::non_existing_attribute(with_option = "foo")]
| ^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 2 previous errors; 2 warnings emitted
For more information about this error, try `rustc --explain E0658`.

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@ -1,4 +1,3 @@
#![feature(diagnostic_namespace)]
//@ check-pass //@ check-pass
#[diagnostic::non_existing_attribute] #[diagnostic::non_existing_attribute]
//~^WARN unknown diagnostic attribute //~^WARN unknown diagnostic attribute

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@ -1,5 +1,5 @@
warning: unknown diagnostic attribute warning: unknown diagnostic attribute
--> $DIR/non_existing_attributes_accepted.rs:3:15 --> $DIR/non_existing_attributes_accepted.rs:2:15
| |
LL | #[diagnostic::non_existing_attribute] LL | #[diagnostic::non_existing_attribute]
| ^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^
@ -7,7 +7,7 @@ LL | #[diagnostic::non_existing_attribute]
= note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default = note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default
warning: unknown diagnostic attribute warning: unknown diagnostic attribute
--> $DIR/non_existing_attributes_accepted.rs:8:15 --> $DIR/non_existing_attributes_accepted.rs:7:15
| |
LL | #[diagnostic::non_existing_attribute(with_option = "foo")] LL | #[diagnostic::non_existing_attribute(with_option = "foo")]
| ^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^

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@ -1,5 +1,3 @@
#![feature(diagnostic_namespace)]
#[diagnostic::on_unimplemented( #[diagnostic::on_unimplemented(
message = "Message", message = "Message",
note = "Note", note = "Note",

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@ -1,5 +1,3 @@
#![feature(diagnostic_namespace)]
#[diagnostic::on_unimplemented( #[diagnostic::on_unimplemented(
on(_Self = "&str"), on(_Self = "&str"),
//~^WARN malformed `on_unimplemented` attribute //~^WARN malformed `on_unimplemented` attribute

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@ -1,5 +1,5 @@
warning: `#[diagnostic::on_unimplemented]` can only be applied to trait definitions warning: `#[diagnostic::on_unimplemented]` can only be applied to trait definitions
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:24:1 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:22:1
| |
LL | #[diagnostic::on_unimplemented(message = "Not allowed to apply it on a impl")] LL | #[diagnostic::on_unimplemented(message = "Not allowed to apply it on a impl")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -7,7 +7,7 @@ LL | #[diagnostic::on_unimplemented(message = "Not allowed to apply it on a impl
= note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default = note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:4:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:2:5
| |
LL | on(_Self = "&str"), LL | on(_Self = "&str"),
| ^^^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^^^ invalid option found here
@ -15,7 +15,7 @@ LL | on(_Self = "&str"),
= help: only `message`, `note` and `label` are allowed as options = help: only `message`, `note` and `label` are allowed as options
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:10:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:8:5
| |
LL | parent_label = "in this scope", LL | parent_label = "in this scope",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here
@ -23,7 +23,7 @@ LL | parent_label = "in this scope",
= help: only `message`, `note` and `label` are allowed as options = help: only `message`, `note` and `label` are allowed as options
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:13:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:11:5
| |
LL | append_const_msg LL | append_const_msg
| ^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^ invalid option found here
@ -31,7 +31,7 @@ LL | append_const_msg
= help: only `message`, `note` and `label` are allowed as options = help: only `message`, `note` and `label` are allowed as options
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:19:32 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:17:32
| |
LL | #[diagnostic::on_unimplemented = "Message"] LL | #[diagnostic::on_unimplemented = "Message"]
| ^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^ invalid option found here
@ -39,7 +39,7 @@ LL | #[diagnostic::on_unimplemented = "Message"]
= help: only `message`, `note` and `label` are allowed as options = help: only `message`, `note` and `label` are allowed as options
warning: there is no parameter `from_desugaring` on trait `Baz` warning: there is no parameter `from_desugaring` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:31:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:29:5
| |
LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -47,7 +47,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: there is no parameter `direct` on trait `Baz` warning: there is no parameter `direct` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:31:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:29:5
| |
LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -55,7 +55,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: there is no parameter `cause` on trait `Baz` warning: there is no parameter `cause` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:31:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:29:5
| |
LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -63,7 +63,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: there is no parameter `integral` on trait `Baz` warning: there is no parameter `integral` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:31:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:29:5
| |
LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -71,7 +71,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: there is no parameter `integer` on trait `Baz` warning: there is no parameter `integer` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:31:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:29:5
| |
LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -79,7 +79,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: there is no parameter `float` on trait `Baz` warning: there is no parameter `float` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:42:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:40:5
| |
LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}" LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -87,7 +87,7 @@ LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: there is no parameter `_Self` on trait `Baz` warning: there is no parameter `_Self` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:42:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:40:5
| |
LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}" LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -95,7 +95,7 @@ LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: there is no parameter `crate_local` on trait `Baz` warning: there is no parameter `crate_local` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:42:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:40:5
| |
LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}" LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -103,7 +103,7 @@ LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: there is no parameter `Trait` on trait `Baz` warning: there is no parameter `Trait` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:42:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:40:5
| |
LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}" LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -111,7 +111,7 @@ LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: there is no parameter `ItemContext` on trait `Baz` warning: there is no parameter `ItemContext` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:42:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:40:5
| |
LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}" LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -119,7 +119,7 @@ LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:4:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:2:5
| |
LL | on(_Self = "&str"), LL | on(_Self = "&str"),
| ^^^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^^^ invalid option found here
@ -128,7 +128,7 @@ LL | on(_Self = "&str"),
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:10:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:8:5
| |
LL | parent_label = "in this scope", LL | parent_label = "in this scope",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here
@ -137,7 +137,7 @@ LL | parent_label = "in this scope",
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:13:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:11:5
| |
LL | append_const_msg LL | append_const_msg
| ^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^ invalid option found here
@ -146,7 +146,7 @@ LL | append_const_msg
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0277]: trait has `()` and `i32` as params error[E0277]: trait has `()` and `i32` as params
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:61:15 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:59:15
| |
LL | takes_foo(()); LL | takes_foo(());
| --------- ^^ trait has `()` and `i32` as params | --------- ^^ trait has `()` and `i32` as params
@ -156,18 +156,18 @@ LL | takes_foo(());
= help: the trait `Foo<i32>` is not implemented for `()` = help: the trait `Foo<i32>` is not implemented for `()`
= note: trait has `()` and `i32` as params = note: trait has `()` and `i32` as params
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:17:1 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:15:1
| |
LL | trait Foo<T> {} LL | trait Foo<T> {}
| ^^^^^^^^^^^^ | ^^^^^^^^^^^^
note: required by a bound in `takes_foo` note: required by a bound in `takes_foo`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:56:22 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:54:22
| |
LL | fn takes_foo(_: impl Foo<i32>) {} LL | fn takes_foo(_: impl Foo<i32>) {}
| ^^^^^^^^ required by this bound in `takes_foo` | ^^^^^^^^ required by this bound in `takes_foo`
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:19:32 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:17:32
| |
LL | #[diagnostic::on_unimplemented = "Message"] LL | #[diagnostic::on_unimplemented = "Message"]
| ^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^ invalid option found here
@ -176,7 +176,7 @@ LL | #[diagnostic::on_unimplemented = "Message"]
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0277]: the trait bound `(): Bar` is not satisfied error[E0277]: the trait bound `(): Bar` is not satisfied
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:63:15 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:61:15
| |
LL | takes_bar(()); LL | takes_bar(());
| --------- ^^ the trait `Bar` is not implemented for `()` | --------- ^^ the trait `Bar` is not implemented for `()`
@ -185,13 +185,13 @@ LL | takes_bar(());
| |
= help: the trait `Bar` is implemented for `i32` = help: the trait `Bar` is implemented for `i32`
note: required by a bound in `takes_bar` note: required by a bound in `takes_bar`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:57:22 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:55:22
| |
LL | fn takes_bar(_: impl Bar) {} LL | fn takes_bar(_: impl Bar) {}
| ^^^ required by this bound in `takes_bar` | ^^^ required by this bound in `takes_bar`
warning: there is no parameter `from_desugaring` on trait `Baz` warning: there is no parameter `from_desugaring` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:31:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:29:5
| |
LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -200,7 +200,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: there is no parameter `direct` on trait `Baz` warning: there is no parameter `direct` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:31:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:29:5
| |
LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -209,7 +209,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: there is no parameter `cause` on trait `Baz` warning: there is no parameter `cause` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:31:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:29:5
| |
LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -218,7 +218,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: there is no parameter `integral` on trait `Baz` warning: there is no parameter `integral` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:31:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:29:5
| |
LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -227,7 +227,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: there is no parameter `integer` on trait `Baz` warning: there is no parameter `integer` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:31:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:29:5
| |
LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -236,7 +236,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}",
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: there is no parameter `float` on trait `Baz` warning: there is no parameter `float` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:42:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:40:5
| |
LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}" LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -245,7 +245,7 @@ LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: there is no parameter `_Self` on trait `Baz` warning: there is no parameter `_Self` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:42:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:40:5
| |
LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}" LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -254,7 +254,7 @@ LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: there is no parameter `crate_local` on trait `Baz` warning: there is no parameter `crate_local` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:42:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:40:5
| |
LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}" LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -263,7 +263,7 @@ LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: there is no parameter `Trait` on trait `Baz` warning: there is no parameter `Trait` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:42:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:40:5
| |
LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}" LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -272,7 +272,7 @@ LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: there is no parameter `ItemContext` on trait `Baz` warning: there is no parameter `ItemContext` on trait `Baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:42:5 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:40:5
| |
LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}" LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -281,7 +281,7 @@ LL | label = "{float}{_Self}{crate_local}{Trait}{ItemContext}"
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0277]: {from_desugaring}{direct}{cause}{integral}{integer} error[E0277]: {from_desugaring}{direct}{cause}{integral}{integer}
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:65:15 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:63:15
| |
LL | takes_baz(()); LL | takes_baz(());
| --------- ^^ {float}{_Self}{crate_local}{Trait}{ItemContext} | --------- ^^ {float}{_Self}{crate_local}{Trait}{ItemContext}
@ -290,12 +290,12 @@ LL | takes_baz(());
| |
= help: the trait `Baz` is not implemented for `()` = help: the trait `Baz` is not implemented for `()`
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:54:1 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:52:1
| |
LL | trait Baz {} LL | trait Baz {}
| ^^^^^^^^^ | ^^^^^^^^^
note: required by a bound in `takes_baz` note: required by a bound in `takes_baz`
--> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:58:22 --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:56:22
| |
LL | fn takes_baz(_: impl Baz) {} LL | fn takes_baz(_: impl Baz) {}
| ^^^ required by this bound in `takes_baz` | ^^^ required by this bound in `takes_baz`

View File

@ -1,5 +1,3 @@
#![feature(diagnostic_namespace)]
#[diagnostic::on_unimplemented(unsupported = "foo")] #[diagnostic::on_unimplemented(unsupported = "foo")]
//~^WARN malformed `on_unimplemented` attribute //~^WARN malformed `on_unimplemented` attribute
//~|WARN malformed `on_unimplemented` attribute //~|WARN malformed `on_unimplemented` attribute

View File

@ -1,5 +1,5 @@
warning: `#[diagnostic::on_unimplemented]` can only be applied to trait definitions warning: `#[diagnostic::on_unimplemented]` can only be applied to trait definitions
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:8:1 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:6:1
| |
LL | #[diagnostic::on_unimplemented(message = "Baz")] LL | #[diagnostic::on_unimplemented(message = "Baz")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -7,7 +7,7 @@ LL | #[diagnostic::on_unimplemented(message = "Baz")]
= note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default = note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:3:32 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:1:32
| |
LL | #[diagnostic::on_unimplemented(unsupported = "foo")] LL | #[diagnostic::on_unimplemented(unsupported = "foo")]
| ^^^^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^^^^ invalid option found here
@ -15,7 +15,7 @@ LL | #[diagnostic::on_unimplemented(unsupported = "foo")]
= help: only `message`, `note` and `label` are allowed as options = help: only `message`, `note` and `label` are allowed as options
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:12:50 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:10:50
| |
LL | #[diagnostic::on_unimplemented(message = "Boom", unsupported = "Bar")] LL | #[diagnostic::on_unimplemented(message = "Boom", unsupported = "Bar")]
| ^^^^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^^^^ invalid option found here
@ -23,7 +23,7 @@ LL | #[diagnostic::on_unimplemented(message = "Boom", unsupported = "Bar")]
= help: only `message`, `note` and `label` are allowed as options = help: only `message`, `note` and `label` are allowed as options
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:17:50 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:15:50
| |
LL | #[diagnostic::on_unimplemented(message = "Boom", on(_Self = "i32", message = "whatever"))] LL | #[diagnostic::on_unimplemented(message = "Boom", on(_Self = "i32", message = "whatever"))]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here
@ -31,7 +31,7 @@ LL | #[diagnostic::on_unimplemented(message = "Boom", on(_Self = "i32", message
= help: only `message`, `note` and `label` are allowed as options = help: only `message`, `note` and `label` are allowed as options
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:22:32 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:20:32
| |
LL | #[diagnostic::on_unimplemented = "boom"] LL | #[diagnostic::on_unimplemented = "boom"]
| ^^^^^^^^ invalid option found here | ^^^^^^^^ invalid option found here
@ -39,7 +39,7 @@ LL | #[diagnostic::on_unimplemented = "boom"]
= help: only `message`, `note` and `label` are allowed as options = help: only `message`, `note` and `label` are allowed as options
warning: missing options for `on_unimplemented` attribute warning: missing options for `on_unimplemented` attribute
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:26:1 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:24:1
| |
LL | #[diagnostic::on_unimplemented] LL | #[diagnostic::on_unimplemented]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -47,7 +47,7 @@ LL | #[diagnostic::on_unimplemented]
= help: at least one of the `message`, `note` and `label` options are expected = help: at least one of the `message`, `note` and `label` options are expected
warning: there is no parameter `DoesNotExist` on trait `Test` warning: there is no parameter `DoesNotExist` on trait `Test`
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:31:32 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:29:32
| |
LL | #[diagnostic::on_unimplemented(message = "{DoesNotExist}")] LL | #[diagnostic::on_unimplemented(message = "{DoesNotExist}")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -55,7 +55,7 @@ LL | #[diagnostic::on_unimplemented(message = "{DoesNotExist}")]
= help: expect either a generic argument name or `{Self}` as format argument = help: expect either a generic argument name or `{Self}` as format argument
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:3:32 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:1:32
| |
LL | #[diagnostic::on_unimplemented(unsupported = "foo")] LL | #[diagnostic::on_unimplemented(unsupported = "foo")]
| ^^^^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^^^^ invalid option found here
@ -64,7 +64,7 @@ LL | #[diagnostic::on_unimplemented(unsupported = "foo")]
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0277]: the trait bound `i32: Foo` is not satisfied error[E0277]: the trait bound `i32: Foo` is not satisfied
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:43:14 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:41:14
| |
LL | take_foo(1_i32); LL | take_foo(1_i32);
| -------- ^^^^^ the trait `Foo` is not implemented for `i32` | -------- ^^^^^ the trait `Foo` is not implemented for `i32`
@ -72,18 +72,18 @@ LL | take_foo(1_i32);
| required by a bound introduced by this call | required by a bound introduced by this call
| |
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:6:1 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:4:1
| |
LL | trait Foo {} LL | trait Foo {}
| ^^^^^^^^^ | ^^^^^^^^^
note: required by a bound in `take_foo` note: required by a bound in `take_foo`
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:36:21 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:34:21
| |
LL | fn take_foo(_: impl Foo) {} LL | fn take_foo(_: impl Foo) {}
| ^^^ required by this bound in `take_foo` | ^^^ required by this bound in `take_foo`
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:12:50 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:10:50
| |
LL | #[diagnostic::on_unimplemented(message = "Boom", unsupported = "Bar")] LL | #[diagnostic::on_unimplemented(message = "Boom", unsupported = "Bar")]
| ^^^^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^^^^ invalid option found here
@ -92,7 +92,7 @@ LL | #[diagnostic::on_unimplemented(message = "Boom", unsupported = "Bar")]
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0277]: Boom error[E0277]: Boom
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:45:14 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:43:14
| |
LL | take_baz(1_i32); LL | take_baz(1_i32);
| -------- ^^^^^ the trait `Baz` is not implemented for `i32` | -------- ^^^^^ the trait `Baz` is not implemented for `i32`
@ -100,18 +100,18 @@ LL | take_baz(1_i32);
| required by a bound introduced by this call | required by a bound introduced by this call
| |
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:15:1 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:13:1
| |
LL | trait Baz {} LL | trait Baz {}
| ^^^^^^^^^ | ^^^^^^^^^
note: required by a bound in `take_baz` note: required by a bound in `take_baz`
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:37:21 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:35:21
| |
LL | fn take_baz(_: impl Baz) {} LL | fn take_baz(_: impl Baz) {}
| ^^^ required by this bound in `take_baz` | ^^^ required by this bound in `take_baz`
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:17:50 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:15:50
| |
LL | #[diagnostic::on_unimplemented(message = "Boom", on(_Self = "i32", message = "whatever"))] LL | #[diagnostic::on_unimplemented(message = "Boom", on(_Self = "i32", message = "whatever"))]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here
@ -120,7 +120,7 @@ LL | #[diagnostic::on_unimplemented(message = "Boom", on(_Self = "i32", message
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0277]: Boom error[E0277]: Boom
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:47:15 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:45:15
| |
LL | take_boom(1_i32); LL | take_boom(1_i32);
| --------- ^^^^^ the trait `Boom` is not implemented for `i32` | --------- ^^^^^ the trait `Boom` is not implemented for `i32`
@ -128,18 +128,18 @@ LL | take_boom(1_i32);
| required by a bound introduced by this call | required by a bound introduced by this call
| |
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:20:1 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:18:1
| |
LL | trait Boom {} LL | trait Boom {}
| ^^^^^^^^^^ | ^^^^^^^^^^
note: required by a bound in `take_boom` note: required by a bound in `take_boom`
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:38:22 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:36:22
| |
LL | fn take_boom(_: impl Boom) {} LL | fn take_boom(_: impl Boom) {}
| ^^^^ required by this bound in `take_boom` | ^^^^ required by this bound in `take_boom`
warning: missing options for `on_unimplemented` attribute warning: missing options for `on_unimplemented` attribute
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:26:1 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:24:1
| |
LL | #[diagnostic::on_unimplemented] LL | #[diagnostic::on_unimplemented]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -148,7 +148,7 @@ LL | #[diagnostic::on_unimplemented]
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0277]: the trait bound `i32: Whatever` is not satisfied error[E0277]: the trait bound `i32: Whatever` is not satisfied
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:49:19 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:47:19
| |
LL | take_whatever(1_i32); LL | take_whatever(1_i32);
| ------------- ^^^^^ the trait `Whatever` is not implemented for `i32` | ------------- ^^^^^ the trait `Whatever` is not implemented for `i32`
@ -156,18 +156,18 @@ LL | take_whatever(1_i32);
| required by a bound introduced by this call | required by a bound introduced by this call
| |
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:29:1 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:27:1
| |
LL | trait Whatever {} LL | trait Whatever {}
| ^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^
note: required by a bound in `take_whatever` note: required by a bound in `take_whatever`
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:39:26 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:37:26
| |
LL | fn take_whatever(_: impl Whatever) {} LL | fn take_whatever(_: impl Whatever) {}
| ^^^^^^^^ required by this bound in `take_whatever` | ^^^^^^^^ required by this bound in `take_whatever`
warning: there is no parameter `DoesNotExist` on trait `Test` warning: there is no parameter `DoesNotExist` on trait `Test`
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:31:32 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:29:32
| |
LL | #[diagnostic::on_unimplemented(message = "{DoesNotExist}")] LL | #[diagnostic::on_unimplemented(message = "{DoesNotExist}")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -176,7 +176,7 @@ LL | #[diagnostic::on_unimplemented(message = "{DoesNotExist}")]
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0277]: {DoesNotExist} error[E0277]: {DoesNotExist}
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:51:15 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:49:15
| |
LL | take_test(()); LL | take_test(());
| --------- ^^ the trait `Test` is not implemented for `()` | --------- ^^ the trait `Test` is not implemented for `()`
@ -184,12 +184,12 @@ LL | take_test(());
| required by a bound introduced by this call | required by a bound introduced by this call
| |
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:34:1 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:32:1
| |
LL | trait Test {} LL | trait Test {}
| ^^^^^^^^^^ | ^^^^^^^^^^
note: required by a bound in `take_test` note: required by a bound in `take_test`
--> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:40:22 --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:38:22
| |
LL | fn take_test(_: impl Test) {} LL | fn take_test(_: impl Test) {}
| ^^^^ required by this bound in `take_test` | ^^^^ required by this bound in `take_test`

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@ -1,7 +0,0 @@
#[diagnostic::on_unimplemented(message = "Foo")]
//~^ERROR `#[diagnostic]` attribute name space is experimental [E0658]
pub trait Bar {
}
fn main() {
}

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@ -1,13 +0,0 @@
error[E0658]: `#[diagnostic]` attribute name space is experimental
--> $DIR/feature-gate-diagnostic_on_unimplemented.rs:1:3
|
LL | #[diagnostic::on_unimplemented(message = "Foo")]
| ^^^^^^^^^^
|
= note: see issue #111996 <https://github.com/rust-lang/rust/issues/111996> for more information
= help: add `#![feature(diagnostic_namespace)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0658`.

View File

@ -1,5 +1,3 @@
#![feature(diagnostic_namespace)]
#[diagnostic::on_unimplemented( #[diagnostic::on_unimplemented(
if(Self = "()"), if(Self = "()"),
//~^WARN malformed `on_unimplemented` attribute //~^WARN malformed `on_unimplemented` attribute

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@ -1,5 +1,5 @@
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:4:5 --> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:2:5
| |
LL | if(Self = "()"), LL | if(Self = "()"),
| ^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^ invalid option found here
@ -8,7 +8,7 @@ LL | if(Self = "()"),
= note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default = note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default
warning: `message` is ignored due to previous definition of `message` warning: `message` is ignored due to previous definition of `message`
--> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:10:32 --> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:8:32
| |
LL | message = "custom message", LL | message = "custom message",
| -------------------------- `message` is first declared here | -------------------------- `message` is first declared here
@ -17,7 +17,7 @@ LL | #[diagnostic::on_unimplemented(message = "fallback!!")]
| ^^^^^^^^^^^^^^^^^^^^^^ `message` is already declared here | ^^^^^^^^^^^^^^^^^^^^^^ `message` is already declared here
warning: malformed `on_unimplemented` attribute warning: malformed `on_unimplemented` attribute
--> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:4:5 --> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:2:5
| |
LL | if(Self = "()"), LL | if(Self = "()"),
| ^^^^^^^^^^^^^^^ invalid option found here | ^^^^^^^^^^^^^^^ invalid option found here
@ -26,7 +26,7 @@ LL | if(Self = "()"),
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: `message` is ignored due to previous definition of `message` warning: `message` is ignored due to previous definition of `message`
--> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:10:32 --> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:8:32
| |
LL | message = "custom message", LL | message = "custom message",
| -------------------------- `message` is first declared here | -------------------------- `message` is first declared here
@ -37,7 +37,7 @@ LL | #[diagnostic::on_unimplemented(message = "fallback!!")]
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0277]: custom message error[E0277]: custom message
--> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:20:15 --> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:18:15
| |
LL | takes_foo(()); LL | takes_foo(());
| --------- ^^ fallback label | --------- ^^ fallback label
@ -48,12 +48,12 @@ LL | takes_foo(());
= note: custom note = note: custom note
= note: fallback note = note: fallback note
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:15:1 --> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:13:1
| |
LL | trait Foo {} LL | trait Foo {}
| ^^^^^^^^^ | ^^^^^^^^^
note: required by a bound in `takes_foo` note: required by a bound in `takes_foo`
--> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:17:22 --> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:15:22
| |
LL | fn takes_foo(_: impl Foo) {} LL | fn takes_foo(_: impl Foo) {}
| ^^^ required by this bound in `takes_foo` | ^^^ required by this bound in `takes_foo`

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@ -1,5 +1,3 @@
#![feature(diagnostic_namespace)]
#[diagnostic::on_unimplemented(message = "Foo", label = "Bar", note = "Baz", note = "Boom")] #[diagnostic::on_unimplemented(message = "Foo", label = "Bar", note = "Baz", note = "Boom")]
trait Foo {} trait Foo {}

View File

@ -1,5 +1,5 @@
error[E0277]: Foo error[E0277]: Foo
--> $DIR/multiple_notes.rs:14:15 --> $DIR/multiple_notes.rs:12:15
| |
LL | takes_foo(()); LL | takes_foo(());
| --------- ^^ Bar | --------- ^^ Bar
@ -10,18 +10,18 @@ LL | takes_foo(());
= note: Baz = note: Baz
= note: Boom = note: Boom
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/multiple_notes.rs:4:1 --> $DIR/multiple_notes.rs:2:1
| |
LL | trait Foo {} LL | trait Foo {}
| ^^^^^^^^^ | ^^^^^^^^^
note: required by a bound in `takes_foo` note: required by a bound in `takes_foo`
--> $DIR/multiple_notes.rs:10:22 --> $DIR/multiple_notes.rs:8:22
| |
LL | fn takes_foo(_: impl Foo) {} LL | fn takes_foo(_: impl Foo) {}
| ^^^ required by this bound in `takes_foo` | ^^^ required by this bound in `takes_foo`
error[E0277]: Bar error[E0277]: Bar
--> $DIR/multiple_notes.rs:16:15 --> $DIR/multiple_notes.rs:14:15
| |
LL | takes_bar(()); LL | takes_bar(());
| --------- ^^ Foo | --------- ^^ Foo
@ -32,12 +32,12 @@ LL | takes_bar(());
= note: Baz = note: Baz
= note: Baz2 = note: Baz2
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/multiple_notes.rs:8:1 --> $DIR/multiple_notes.rs:6:1
| |
LL | trait Bar {} LL | trait Bar {}
| ^^^^^^^^^ | ^^^^^^^^^
note: required by a bound in `takes_bar` note: required by a bound in `takes_bar`
--> $DIR/multiple_notes.rs:11:22 --> $DIR/multiple_notes.rs:9:22
| |
LL | fn takes_bar(_: impl Bar) {} LL | fn takes_bar(_: impl Bar) {}
| ^^^ required by this bound in `takes_bar` | ^^^ required by this bound in `takes_bar`

View File

@ -1,5 +1,3 @@
#![feature(diagnostic_namespace)]
#[diagnostic::on_unimplemented(message = "Foo", label = "Bar", note = "Baz")] #[diagnostic::on_unimplemented(message = "Foo", label = "Bar", note = "Baz")]
trait Foo {} trait Foo {}

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@ -1,5 +1,5 @@
error[E0277]: Foo error[E0277]: Foo
--> $DIR/on_unimplemented_simple.rs:9:15 --> $DIR/on_unimplemented_simple.rs:7:15
| |
LL | takes_foo(()); LL | takes_foo(());
| --------- ^^ Bar | --------- ^^ Bar
@ -9,12 +9,12 @@ LL | takes_foo(());
= help: the trait `Foo` is not implemented for `()` = help: the trait `Foo` is not implemented for `()`
= note: Baz = note: Baz
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/on_unimplemented_simple.rs:4:1 --> $DIR/on_unimplemented_simple.rs:2:1
| |
LL | trait Foo {} LL | trait Foo {}
| ^^^^^^^^^ | ^^^^^^^^^
note: required by a bound in `takes_foo` note: required by a bound in `takes_foo`
--> $DIR/on_unimplemented_simple.rs:6:22 --> $DIR/on_unimplemented_simple.rs:4:22
| |
LL | fn takes_foo(_: impl Foo) {} LL | fn takes_foo(_: impl Foo) {}
| ^^^ required by this bound in `takes_foo` | ^^^ required by this bound in `takes_foo`

View File

@ -1,5 +1,3 @@
#![feature(diagnostic_namespace)]
#[diagnostic::on_unimplemented( #[diagnostic::on_unimplemented(
message = "first message", message = "first message",
label = "first label", label = "first label",

View File

@ -1,5 +1,5 @@
warning: `message` is ignored due to previous definition of `message` warning: `message` is ignored due to previous definition of `message`
--> $DIR/report_warning_on_duplicated_options.rs:9:5 --> $DIR/report_warning_on_duplicated_options.rs:7:5
| |
LL | message = "first message", LL | message = "first message",
| ------------------------- `message` is first declared here | ------------------------- `message` is first declared here
@ -10,7 +10,7 @@ LL | message = "second message",
= note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default = note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default
warning: `label` is ignored due to previous definition of `label` warning: `label` is ignored due to previous definition of `label`
--> $DIR/report_warning_on_duplicated_options.rs:12:5 --> $DIR/report_warning_on_duplicated_options.rs:10:5
| |
LL | label = "first label", LL | label = "first label",
| --------------------- `label` is first declared here | --------------------- `label` is first declared here
@ -19,7 +19,7 @@ LL | label = "second label",
| ^^^^^^^^^^^^^^^^^^^^^^ `label` is already declared here | ^^^^^^^^^^^^^^^^^^^^^^ `label` is already declared here
warning: `message` is ignored due to previous definition of `message` warning: `message` is ignored due to previous definition of `message`
--> $DIR/report_warning_on_duplicated_options.rs:9:5 --> $DIR/report_warning_on_duplicated_options.rs:7:5
| |
LL | message = "first message", LL | message = "first message",
| ------------------------- `message` is first declared here | ------------------------- `message` is first declared here
@ -30,7 +30,7 @@ LL | message = "second message",
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
warning: `label` is ignored due to previous definition of `label` warning: `label` is ignored due to previous definition of `label`
--> $DIR/report_warning_on_duplicated_options.rs:12:5 --> $DIR/report_warning_on_duplicated_options.rs:10:5
| |
LL | label = "first label", LL | label = "first label",
| --------------------- `label` is first declared here | --------------------- `label` is first declared here
@ -41,7 +41,7 @@ LL | label = "second label",
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0277]: first message error[E0277]: first message
--> $DIR/report_warning_on_duplicated_options.rs:23:15 --> $DIR/report_warning_on_duplicated_options.rs:21:15
| |
LL | takes_foo(()); LL | takes_foo(());
| --------- ^^ first label | --------- ^^ first label
@ -52,12 +52,12 @@ LL | takes_foo(());
= note: custom note = note: custom note
= note: second note = note: second note
help: this trait has no implementations, consider adding one help: this trait has no implementations, consider adding one
--> $DIR/report_warning_on_duplicated_options.rs:17:1 --> $DIR/report_warning_on_duplicated_options.rs:15:1
| |
LL | trait Foo {} LL | trait Foo {}
| ^^^^^^^^^ | ^^^^^^^^^
note: required by a bound in `takes_foo` note: required by a bound in `takes_foo`
--> $DIR/report_warning_on_duplicated_options.rs:20:22 --> $DIR/report_warning_on_duplicated_options.rs:18:22
| |
LL | fn takes_foo(_: impl Foo) {} LL | fn takes_foo(_: impl Foo) {}
| ^^^ required by this bound in `takes_foo` | ^^^ required by this bound in `takes_foo`

View File

@ -1,5 +1,3 @@
#![feature(diagnostic_namespace)]
#[diagnostic] #[diagnostic]
//~^ERROR cannot find attribute `diagnostic` in this scope //~^ERROR cannot find attribute `diagnostic` in this scope
pub struct Bar; pub struct Bar;

View File

@ -1,5 +1,5 @@
error: cannot find attribute `diagnostic` in this scope error: cannot find attribute `diagnostic` in this scope
--> $DIR/requires_path.rs:3:3 --> $DIR/requires_path.rs:1:3
| |
LL | #[diagnostic] LL | #[diagnostic]
| ^^^^^^^^^^ | ^^^^^^^^^^