1 files changed, 9 insertions, 0 deletions
diff --git a/compiler/rustc_hir_analysis/src/errors.rs b/compiler/rustc_hir_analysis/src/errors.rs
index be3ef03192c..d0fb7aff30e 100644
--- a/compiler/rustc_hir_analysis/src/errors.rs
+++ b/compiler/rustc_hir_analysis/src/errors.rs
@@ -317,6 +317,15 @@ pub struct AutoDerefReachedRecursionLimit<'a> {
 }
 
 #[derive(Diagnostic)]
+#[diag(hir_analysis_where_clause_on_main, code = "E0646")]
+pub(crate) struct WhereClauseOnMain {
+    #[primary_span]
+    pub span: Span,
+    #[label]
+    pub generics_span: Option<Span>,
+}
+
+#[derive(Diagnostic)]
 #[diag(hir_analysis_track_caller_on_main)]
 pub(crate) struct TrackCallerOnMain {
     #[primary_span]