1 files changed, 38 insertions, 0 deletions
diff --git a/src/test/ui/generics/generic-param-attrs.rs b/src/test/ui/generics/generic-param-attrs.rs
new file mode 100644
index 000000000..3c5cc84c6
--- /dev/null
+++ b/src/test/ui/generics/generic-param-attrs.rs
@@ -0,0 +1,38 @@
+// This test previously ensured that attributes on formals in generic parameter
+// lists are rejected without a feature gate.
+
+// build-pass (FIXME(62277): could be check-pass?)
+
+#![feature(rustc_attrs)]
+
+struct StLt<#[rustc_dummy] 'a>(&'a u32);
+struct StTy<#[rustc_dummy] I>(I);
+enum EnLt<#[rustc_dummy] 'b> { A(&'b u32), B }
+enum EnTy<#[rustc_dummy] J> { A(J), B }
+trait TrLt<#[rustc_dummy] 'c> { fn foo(&self, _: &'c [u32]) -> &'c u32; }
+trait TrTy<#[rustc_dummy] K> { fn foo(&self, _: K); }
+type TyLt<#[rustc_dummy] 'd> = &'d u32;
+type TyTy<#[rustc_dummy] L> = (L, );
+
+impl<#[rustc_dummy] 'e> StLt<'e> { }
+impl<#[rustc_dummy] M> StTy<M> { }
+impl<#[rustc_dummy] 'f> TrLt<'f> for StLt<'f> {
+    fn foo(&self, _: &'f [u32]) -> &'f u32 { loop { } }
+}
+impl<#[rustc_dummy] N> TrTy<N> for StTy<N> {
+    fn foo(&self, _: N) { }
+}
+
+fn f_lt<#[rustc_dummy] 'g>(_: &'g [u32]) -> &'g u32 { loop { } }
+fn f_ty<#[rustc_dummy] O>(_: O) { }
+
+impl<I> StTy<I> {
+    fn m_lt<#[rustc_dummy] 'h>(_: &'h [u32]) -> &'h u32 { loop { } }
+    fn m_ty<#[rustc_dummy] P>(_: P) { }
+}
+
+fn hof_lt<Q>(_: Q)
+    where Q: for <#[rustc_dummy] 'i> Fn(&'i [u32]) -> &'i u32
+{}
+
+fn main() {}