Merge tag 'debian/1.52.1+dfsg1-1_exp2' into proxmox/buster

[rustc.git] / src / test / ui / legacy-const-generics.rs

diff --git a/src/test/ui/legacy-const-generics.rs b/src/test/ui/legacy-const-generics.rs
new file mode 100644 (file)
index 0000000..9abc72d
--- /dev/null
+++ b/src/test/ui/legacy-const-generics.rs
@@ -0,0 +1,18 @@
+// aux-build:legacy-const-generics.rs
+// run-pass
+
+#![feature(rustc_attrs)]
+
+extern crate legacy_const_generics;
+
+#[rustc_legacy_const_generics(1)]
+pub fn bar<const Y: usize>(x: usize, z: usize) -> [usize; 3] {
+    [x, Y, z]
+}
+
+fn main() {
+    assert_eq!(legacy_const_generics::foo(0 + 0, 1 + 1, 2 + 2), [0, 2, 4]);
+    assert_eq!(legacy_const_generics::foo::<{1 + 1}>(0 + 0, 2 + 2), [0, 2, 4]);
+    // FIXME: Only works cross-crate
+    //assert_eq!(bar(0, 1, 2), [0, 1, 2]);
+}