Remove AttributeLintKind::DocAutoCfgHideShowExpectsList variant

compiler/rustc_attr_parsing/src/attributes/doc.rs

@@ -14,8 +14,8 @@
 use super::{AcceptMapping, AttributeParser};
 use crate::context::{AcceptContext, FinalizeContext, Stage};
 use crate::errors::{
-    DocAliasDuplicated, DocAutoCfgExpectsHideOrShow, DocAutoCfgHideShowUnexpectedItem,
-    IllFormedAttributeInput,
+    DocAliasDuplicated, DocAutoCfgExpectsHideOrShow, DocAutoCfgHideShowExpectsList,
+    DocAutoCfgHideShowUnexpectedItem, IllFormedAttributeInput,
 };
 use crate::parser::{ArgParser, MetaItemOrLitParser, MetaItemParser, OwnedPathParser};
 use crate::session_diagnostics::{
@@ -367,9 +367,11 @@ fn parse_auto_cfg<S: Stage>(
                         }
                     };
                     let ArgParser::List(list) = item.args() else {
-                        cx.emit_lint(
+                        cx.emit_dyn_lint(
                             rustc_session::lint::builtin::INVALID_DOC_ATTRIBUTES,
-                            AttributeLintKind::DocAutoCfgHideShowExpectsList { attr_name },
+                            move |dcx, level| {
+                                DocAutoCfgHideShowExpectsList { attr_name }.into_diag(dcx, level)
+                            },
                             item.span(),
                         );
                         continue;

compiler/rustc_attr_parsing/src/errors.rs

@@ -187,3 +187,9 @@ pub(crate) struct DocAliasDuplicated {
 pub(crate) struct DocAutoCfgHideShowUnexpectedItem {
     pub attr_name: Symbol,
 }
+
+#[derive(Diagnostic)]
+#[diag("`#![doc(auto_cfg({$attr_name}(...)))]` expects a list of items")]
+pub(crate) struct DocAutoCfgHideShowExpectsList {
+    pub attr_name: Symbol,
+}

compiler/rustc_lint/src/early/diagnostics.rs

@@ -43,10 +43,6 @@ fn into_diag(self, dcx: DiagCtxtHandle<'a>, level: Level) -> Diag<'a, ()> {
                     .into_diag(dcx, level)
             }
 
-            &AttributeLintKind::DocAutoCfgHideShowExpectsList { attr_name } => {
-                lints::DocAutoCfgHideShowExpectsList { attr_name }.into_diag(dcx, level)
-            }
-
             &AttributeLintKind::DocInvalid => lints::DocInvalid.into_diag(dcx, level),
 
             &AttributeLintKind::DocUnknownInclude { span, inner, value } => {

compiler/rustc_lint/src/lints.rs

@@ -3303,12 +3303,6 @@ fn add_to_diag<G: EmissionGuarantee>(self, diag: &mut Diag<'_, G>) {
 )]
 pub(crate) struct ExpectedNameValue;
 
-#[derive(Diagnostic)]
-#[diag("`#![doc(auto_cfg({$attr_name}(...)))]` expects a list of items")]
-pub(crate) struct DocAutoCfgHideShowExpectsList {
-    pub attr_name: Symbol,
-}
-
 #[derive(Diagnostic)]
 #[diag("invalid `doc` attribute")]
 pub(crate) struct DocInvalid;

compiler/rustc_lint_defs/src/lib.rs

@@ -656,7 +656,6 @@ pub enum DeprecatedSinceKind {
 pub enum AttributeLintKind {
     UnexpectedCfgName((Symbol, Span), Option<(Symbol, Span)>),
     UnexpectedCfgValue((Symbol, Span), Option<(Symbol, Span)>),
-    DocAutoCfgHideShowExpectsList { attr_name: Symbol },
     DocInvalid,
     DocUnknownInclude { span: Span, inner: &'static str, value: Symbol },
     DocUnknownSpotlight { span: Span },