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//@ build-pass
//@ revisions: no-opt inline
//@ [inline]compile-flags: -Zmir-opt-level=3 --emit=mir
#![feature(trivial_bounds)]
#![allow(unused)]
trait Foo {
fn test(&self);
}
fn foo<'a>(s: &'a mut ())
where
&'a mut (): Foo,
{
s.test();
}
fn clone(it: &mut ()) -> &mut ()
where
for<'any> &'any mut (): Clone,
//~^ WARN trait bound for<'any> &'any mut (): Clone does not depend on any type or lifetime parameters
{
it.clone()
}
fn generic_function<X: Foo>(x: X) {}
struct S where i32: Foo;
//~^ WARN trait bound i32: Foo does not depend on any type or lifetime parameters
impl Foo for () where i32: Foo {
//~^ WARN trait bound i32: Foo does not depend on any type or lifetime parameters
fn test(&self) {
3i32.test();
Foo::test(&4i32);
generic_function(5i32);
}
}
fn f() where i32: Foo {
//~^ WARN trait bound i32: Foo does not depend on any type or lifetime parameters
let s = S;
3i32.test();
Foo::test(&4i32);
generic_function(5i32);
}
fn g() where &'static str: Foo {
//~^ WARN trait bound &'static str: Foo does not depend on any type or lifetime parameters
"Foo".test();
Foo::test(&"Foo");
generic_function("Foo");
}
fn use_op(s: String) -> String
where
String: ::std::ops::Neg<Output = String>,
//~^ WARN trait bound String: Neg does not depend on any type or lifetime parameters
{
-s
}
fn use_for()
where
i32: Iterator,
//~^ WARN trait bound i32: Iterator does not depend on any type or lifetime parameters
{
for _ in 2i32 {}
}
fn main() {}
|
