Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/ui/proc-macro/auxiliary/lifetimes-rpass.rs b/tests/ui/proc-macro/auxiliary/lifetimes-rpass.rs
new file mode 100644
index 000000000..4e5d22e6e
--- /dev/null
+++ b/tests/ui/proc-macro/auxiliary/lifetimes-rpass.rs
@@ -0,0 +1,26 @@
+// force-host
+// no-prefer-dynamic
+
+#![crate_type = "proc-macro"]
+
+extern crate proc_macro;
+
+use proc_macro::*;
+
+#[proc_macro]
+pub fn lifetimes_bang(input: TokenStream) -> TokenStream {
+    // Roundtrip through token trees
+    input.into_iter().collect()
+}
+
+#[proc_macro_attribute]
+pub fn lifetimes_attr(_: TokenStream, input: TokenStream) -> TokenStream {
+    // Roundtrip through AST
+    input
+}
+
+#[proc_macro_derive(Lifetimes)]
+pub fn lifetimes_derive(input: TokenStream) -> TokenStream {
+    // Roundtrip through a string
+    format!("mod m {{ {} }}", input).parse().unwrap()
+}