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|
//@ run-rustfix
#![allow(dead_code)]
fn duplicate_t<T: Copy>(t: T) -> (T, T) {
//~^ HELP consider restricting type parameter `T`
//~| HELP if `T` implemented `Clone`, you could clone the value
(t, t) //~ use of moved value: `t`
}
fn duplicate_opt<T: Copy>(t: Option<T>) -> (Option<T>, Option<T>) {
//~^ HELP consider restricting type parameter `T`
(t, t) //~ use of moved value: `t`
}
fn duplicate_tup1<T: Copy>(t: (T,)) -> ((T,), (T,)) {
//~^ HELP consider restricting type parameter `T`
(t, t) //~ use of moved value: `t`
}
fn duplicate_tup2<A: Copy, B: Copy>(t: (A, B)) -> ((A, B), (A, B)) {
//~^ HELP consider restricting type parameters
(t, t) //~ use of moved value: `t`
}
fn duplicate_custom<T: Copy + Trait>(t: S<T>) -> (S<T>, S<T>) {
//~^ HELP consider restricting type parameter `T`
(t, t) //~ use of moved value: `t`
}
struct S<T>(T);
trait Trait {}
impl<T: Trait + Clone> Clone for S<T> {
fn clone(&self) -> Self {
Self(self.0.clone())
}
}
impl<T: Trait + Copy> Copy for S<T> {}
trait A {}
trait B {}
// Test where bounds are added with different bound placements
fn duplicate_custom_1<T: Copy + Trait>(t: S<T>) -> (S<T>, S<T>) where {
//~^ HELP consider restricting type parameter `T`
(t, t) //~ use of moved value: `t`
}
fn duplicate_custom_2<T>(t: S<T>) -> (S<T>, S<T>)
where
T: A + Copy + Trait,
//~^ HELP consider further restricting
{
(t, t) //~ use of moved value: `t`
}
fn duplicate_custom_3<T>(t: S<T>) -> (S<T>, S<T>)
where
T: A + Copy + Trait,
//~^ HELP consider further restricting
T: B,
{
(t, t) //~ use of moved value: `t`
}
fn duplicate_custom_4<T: A + Copy + Trait>(t: S<T>) -> (S<T>, S<T>)
//~^ HELP consider further restricting
where
T: B,
{
(t, t) //~ use of moved value: `t`
}
#[rustfmt::skip]
fn existing_colon<T: Copy>(t: T) {
//~^ HELP consider restricting type parameter `T`
//~| HELP if `T` implemented `Clone`, you could clone the value
[t, t]; //~ use of moved value: `t`
}
fn existing_colon_in_where<T>(t: T) //~ HELP if `T` implemented `Clone`, you could clone the value
where
T:, T: Copy
//~^ HELP consider further restricting type parameter `T`
{
[t, t]; //~ use of moved value: `t`
}
fn main() {}
|
