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, 66 insertions, 0 deletions

diff --git a/src/test/ui/proc-macro/attr-stmt-expr.rs b/src/test/ui/proc-macro/attr-stmt-expr.rs
new file mode 100644
index 000000000..0403684cd
--- /dev/null
+++ b/src/test/ui/proc-macro/attr-stmt-expr.rs
@@ -0,0 +1,66 @@
+// aux-build:attr-stmt-expr.rs
+// aux-build:test-macros.rs
+// compile-flags: -Z span-debug
+
+#![feature(proc_macro_hygiene)]
+#![feature(rustc_attrs)]
+
+#![no_std] // Don't load unnecessary hygiene information from std
+extern crate std;
+extern crate test_macros;
+extern crate attr_stmt_expr;
+
+use test_macros::print_attr;
+use attr_stmt_expr::{expect_let, expect_my_macro_stmt, expect_expr, expect_my_macro_expr};
+
+// We don't use `std::println` so that we avoid loading hygiene
+// information from libstd, which would affect the SyntaxContext ids
+macro_rules! my_macro {
+    ($($tt:tt)*) => { () }
+}
+
+fn print_str(string: &'static str) {
+    // macros are handled a bit differently
+    #[expect_my_macro_expr]
+    //~^ ERROR attributes on expressions are experimental
+    //~| HELP add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable
+    my_macro!("{}", string)
+}
+
+macro_rules! make_stmt {
+    ($stmt:stmt) => {
+        #[print_attr]
+        #[rustc_dummy]
+        $stmt
+    }
+}
+
+macro_rules! second_make_stmt {
+    ($stmt:stmt) => {
+        make_stmt!($stmt);
+    }
+}
+
+fn main() {
+    make_stmt!(struct Foo {});
+
+    #[print_attr]
+    #[expect_let]
+    let string = "Hello, world!";
+
+    #[print_attr]
+    #[expect_my_macro_stmt]
+    my_macro!("{}", string);
+
+    #[print_attr]
+    second_make_stmt!(#[allow(dead_code)] struct Bar {});
+
+    #[print_attr]
+    #[rustc_dummy]
+    struct Other {}
+
+    #[expect_expr]
+    //~^ ERROR attributes on expressions are experimental
+    //~| HELP add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable
+    print_str("string")
+}