Rollup merge of #122482 - weiznich:fix/122446, r=compiler-errors

matthiaskrgr · web-flow · commit c0fd2db49a68 · 2024-03-14T15:44:36.000+01:00
Ungate the `UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES` lint This was missed during stablisation of the `#[diagnostic]` attribute namespace. Fixes #122446
diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs
@@ -4355,7 +4355,6 @@ declare_lint! {
     pub UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES,
     Warn,
     "unrecognized or malformed diagnostic attribute",
-    @feature_gate = sym::diagnostic_namespace;
 }
 
 declare_lint! {
diff --git a/tests/ui/diagnostic_namespace/deny_malformed_attribute.rs b/tests/ui/diagnostic_namespace/deny_malformed_attribute.rs
@@ -0,0 +1,7 @@
+#![deny(unknown_or_malformed_diagnostic_attributes)]
+
+#[diagnostic::unknown_attribute]
+//~^ERROR unknown diagnostic attribute
+struct Foo;
+
+fn main() {}
diff --git a/tests/ui/diagnostic_namespace/deny_malformed_attribute.stderr b/tests/ui/diagnostic_namespace/deny_malformed_attribute.stderr
@@ -0,0 +1,14 @@
+error: unknown diagnostic attribute
+  --> $DIR/deny_malformed_attribute.rs:3:15
+   |
+LL | #[diagnostic::unknown_attribute]
+   |               ^^^^^^^^^^^^^^^^^
+   |
+note: the lint level is defined here
+  --> $DIR/deny_malformed_attribute.rs:1:9
+   |
+LL | #![deny(unknown_or_malformed_diagnostic_attributes)]
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 1 previous error
+

Original file line number	Diff line number	Diff line change
`@@ -4355,7 +4355,6 @@ declare_lint! {`
`4355`	`4355`	`pub UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES,`
`4356`	`4356`	`Warn,`
`4357`	`4357`	`"unrecognized or malformed diagnostic attribute",`
`4358`		`- @feature_gate = sym::diagnostic_namespace;`
`4359`	`4358`	`}`
`4360`	`4359`
`4361`	`4360`	`declare_lint! {`