Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 40 insertions, 0 deletions

diff --git a/tests/ui/trivial-bounds/trivial-bounds-lint.rs b/tests/ui/trivial-bounds/trivial-bounds-lint.rs
new file mode 100644
index 000000000..078578372
--- /dev/null
+++ b/tests/ui/trivial-bounds/trivial-bounds-lint.rs
@@ -0,0 +1,40 @@
+#![feature(trivial_bounds)]
+#![allow(unused)]
+#![deny(trivial_bounds)]
+
+struct A where i32: Copy; //~ ERROR
+
+trait X<T: Copy> {}
+
+trait Y<T>: Copy {}
+
+trait Z {
+    type S: Copy;
+}
+
+// Check only the bound the user writes trigger the lint
+fn trivial_elaboration<T>() where T: X<i32> + Z<S = i32>, i32: Y<T> {} // OK
+
+fn global_param() where i32: X<()> {} //~ ERROR
+
+// Should only error on the trait bound, not the implicit
+// projection bound <i32 as Z>::S == i32.
+fn global_projection() where i32: Z<S = i32> {} //~ ERROR
+
+impl A {
+    fn new() -> A { A }
+}
+
+// Lifetime bounds should be linted as well
+fn global_lifetimes() where i32: 'static, &'static str: 'static {}
+//~^ ERROR
+//~| ERROR
+
+fn local_lifetimes<'a>() where i32: 'a, &'a str: 'a {} // OK
+
+fn global_outlives() where 'static: 'static {} //~ ERROR
+
+// Check that each bound is checked individually
+fn mixed_bounds<T: Copy>() where i32: X<T> + Copy {} //~ ERROR
+
+fn main() {}