1 files changed, 71 insertions, 0 deletions
diff --git a/tests/ui/nll/user-annotations/adt-tuple-struct-calls.rs b/tests/ui/nll/user-annotations/adt-tuple-struct-calls.rs
new file mode 100644
index 00000000000..11658322392
--- /dev/null
+++ b/tests/ui/nll/user-annotations/adt-tuple-struct-calls.rs
@@ -0,0 +1,71 @@
+// Unit test for the "user substitutions" that are annotated on each
+// node.
+
+struct SomeStruct<T>(T);
+
+fn no_annot() {
+    let c = 66;
+    let f = SomeStruct;
+    f(&c);
+}
+
+fn annot_underscore() {
+    let c = 66;
+    let f = SomeStruct::<_>;
+    f(&c);
+}
+
+fn annot_reference_any_lifetime() {
+    let c = 66;
+    let f = SomeStruct::<&u32>;
+    f(&c);
+}
+
+fn annot_reference_static_lifetime() {
+    let c = 66;
+    let f = SomeStruct::<&'static u32>;
+    f(&c); //~ ERROR
+}
+
+fn annot_reference_named_lifetime<'a>(_d: &'a u32) {
+    let c = 66;
+    let f = SomeStruct::<&'a u32>;
+    f(&c); //~ ERROR
+}
+
+fn annot_reference_named_lifetime_ok<'a>(c: &'a u32) {
+    let f = SomeStruct::<&'a u32>;
+    f(c);
+}
+
+fn annot_reference_named_lifetime_in_closure<'a>(_: &'a u32) {
+    let _closure = || {
+        let c = 66;
+        let f = SomeStruct::<&'a u32>;
+        f(&c); //~ ERROR
+    };
+}
+
+fn annot_reference_named_lifetime_across_closure<'a>(_: &'a u32) {
+    let f = SomeStruct::<&'a u32>;
+    let _closure = || {
+        let c = 66;
+        f(&c); //~ ERROR
+    };
+}
+
+fn annot_reference_named_lifetime_in_closure_ok<'a>(c: &'a u32) {
+    let _closure = || {
+        let f = SomeStruct::<&'a u32>;
+        f(c);
+    };
+}
+
+fn annot_reference_named_lifetime_across_closure_ok<'a>(c: &'a u32) {
+    let f = SomeStruct::<&'a u32>;
+    let _closure = || {
+        f(c);
+    };
+}
+
+fn main() { }