1 files changed, 69 insertions, 0 deletions
diff --git a/tests/ui/feature-gates/feature-gate-trivial_bounds.rs b/tests/ui/feature-gates/feature-gate-trivial_bounds.rs
new file mode 100644
index 000000000..3dbaf5dea
--- /dev/null
+++ b/tests/ui/feature-gates/feature-gate-trivial_bounds.rs
@@ -0,0 +1,69 @@
+#![allow(unused)]
+#![allow(type_alias_bounds)]
+
+pub trait Foo {
+    fn test(&self);
+}
+
+fn generic_function<X: Foo>(x: X) {}
+
+enum E where i32: Foo { V } //~ ERROR
+
+struct S where i32: Foo; //~ ERROR
+
+trait T where i32: Foo {} //~ ERROR
+
+union U where i32: Foo { f: i32 } //~ ERROR
+
+type Y where i32: Foo = (); // OK - bound is ignored
+
+impl Foo for () where i32: Foo { //~ ERROR
+    fn test(&self) {
+        3i32.test();
+        Foo::test(&4i32);
+        generic_function(5i32);
+    }
+}
+
+fn f() where i32: Foo //~ ERROR
+{
+    let s = S;
+    3i32.test();
+    Foo::test(&4i32);
+    generic_function(5i32);
+}
+
+fn use_op(s: String) -> String where String: ::std::ops::Neg<Output=String> { //~ ERROR
+    -s
+}
+
+fn use_for() where i32: Iterator { //~ ERROR
+    for _ in 2i32 {}
+}
+
+trait A {}
+
+impl A for i32 {}
+
+struct Dst<X: ?Sized> {
+    x: X,
+}
+
+struct TwoStrs(str, str) where str: Sized; //~ ERROR
+
+
+fn unsized_local() where Dst<dyn A>: Sized { //~ ERROR
+    let x: Dst<dyn A> = *(Box::new(Dst { x: 1 }) as Box<Dst<dyn A>>);
+}
+
+fn return_str() -> str where str: Sized { //~ ERROR
+    *"Sized".to_string().into_boxed_str()
+}
+
+// This is currently accepted because the function pointer isn't
+// considered global.
+fn global_hr(x: fn(&())) where fn(&()): Foo { // OK
+    x.test();
+}
+
+fn main() {}