Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/src/test/ui/feature-gates/feature-gate-rustc-attrs.rs b/src/test/ui/feature-gates/feature-gate-rustc-attrs.rs
new file mode 100644
index 000000000..c985298a3
--- /dev/null
+++ b/src/test/ui/feature-gates/feature-gate-rustc-attrs.rs
@@ -0,0 +1,23 @@
+// Test that `#[rustc_*]` attributes are gated by `rustc_attrs` feature gate.
+
+#![feature(decl_macro)]
+
+mod rustc { pub macro unknown() {} }
+mod unknown { pub macro rustc() {} }
+
+#[rustc::unknown]
+//~^ ERROR attributes starting with `rustc` are reserved for use by the `rustc` compiler
+//~| ERROR expected attribute, found macro `rustc::unknown`
+fn f() {}
+
+#[unknown::rustc]
+//~^ ERROR attributes starting with `rustc` are reserved for use by the `rustc` compiler
+//~| ERROR expected attribute, found macro `unknown::rustc`
+fn g() {}
+
+#[rustc_dummy]
+//~^ ERROR the `#[rustc_dummy]` attribute is just used for rustc unit tests
+#[rustc_unknown]
+//~^ ERROR attributes starting with `rustc` are reserved for use by the `rustc` compiler
+//~| ERROR cannot find attribute `rustc_unknown` in this scope
+fn main() {}